diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8220')
22 files changed, 0 insertions, 5770 deletions
diff --git a/arch/powerpc/cpu/mpc8220/Makefile b/arch/powerpc/cpu/mpc8220/Makefile deleted file mode 100644 index b8529efe9..000000000 --- a/arch/powerpc/cpu/mpc8220/Makefile +++ /dev/null @@ -1,50 +0,0 @@ -# -# (C) Copyright 2003-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# See file CREDITS for list of people who contributed to this -# project. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation; either version 2 of -# the License, or (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, -# MA 02111-1307 USA -# - -include $(TOPDIR)/config.mk - -LIB = $(obj)lib$(CPU).o - -START = start.o -SOBJS = io.o fec_dma_tasks.o -COBJS = cpu.o cpu_init.o dramSetup.o fec.o i2c.o \ - interrupts.o loadtask.o speed.o \ - traps.o uart.o pci.o - -SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) -START := $(addprefix $(obj),$(START)) - -all: $(obj).depend $(START) $(LIB) - -$(LIB): $(OBJS) - $(call cmd_link_o_target, $(OBJS)) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/arch/powerpc/cpu/mpc8220/config.mk b/arch/powerpc/cpu/mpc8220/config.mk deleted file mode 100644 index 2c638b5c5..000000000 --- a/arch/powerpc/cpu/mpc8220/config.mk +++ /dev/null @@ -1,27 +0,0 @@ -# -# (C) Copyright 2003-2010 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# See file CREDITS for list of people who contributed to this -# project. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation; either version 2 of -# the License, or (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, -# MA 02111-1307 USA -# - -PLATFORM_RELFLAGS += -meabi - -PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 \ - -mstring -mcpu=603e -mmultiple diff --git a/arch/powerpc/cpu/mpc8220/cpu.c b/arch/powerpc/cpu/mpc8220/cpu.c deleted file mode 100644 index 64e0526e8..000000000 --- a/arch/powerpc/cpu/mpc8220/cpu.c +++ /dev/null @@ -1,104 +0,0 @@ -/* - * (C) Copyright 2000-2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * CPU specific code for the MPC8220 CPUs - */ - -#include <common.h> -#include <watchdog.h> -#include <command.h> -#include <mpc8220.h> -#include <netdev.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -int checkcpu (void) -{ - ulong clock = gd->cpu_clk; - char buf[32]; - - puts ("CPU: "); - - printf (CPU_ID_STR); - - printf (" (JTAG ID %08lx)", *(vu_long *) (CONFIG_SYS_MBAR + 0x50)); - - printf (" at %s MHz\n", strmhz (buf, clock)); - - return 0; -} - -/* ------------------------------------------------------------------------- */ - -int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) -{ - volatile gptmr8220_t *gptmr = (volatile gptmr8220_t *) MMAP_GPTMR; - ulong msr; - - /* Interrupts and MMU off */ - __asm__ __volatile__ ("mfmsr %0":"=r" (msr):); - - msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR); - __asm__ __volatile__ ("mtmsr %0"::"r" (msr)); - - /* Charge the watchdog timer */ - gptmr->Prescl = 10; - gptmr->Count = 1; - - gptmr->Mode = GPT_TMS_SGPIO; - - gptmr->Control = GPT_CTRL_WDEN | GPT_CTRL_CE; - - return 1; -} - -/* ------------------------------------------------------------------------- */ - -/* - * Get timebase clock frequency (like cpu_clk in Hz) - * - */ -unsigned long get_tbclk (void) -{ - ulong tbclk; - - tbclk = (gd->bus_clk + 3L) / 4L; - - return (tbclk); -} - -/* ------------------------------------------------------------------------- */ - -/* - * Initializes on-chip ethernet controllers. - * to override, implement board_eth_init() - */ -int cpu_eth_init(bd_t *bis) -{ -#if defined(CONFIG_MPC8220_FEC) - mpc8220_fec_initialize(bis); -#endif - return 0; -} diff --git a/arch/powerpc/cpu/mpc8220/cpu_init.c b/arch/powerpc/cpu/mpc8220/cpu_init.c deleted file mode 100644 index 8f52c7dd0..000000000 --- a/arch/powerpc/cpu/mpc8220/cpu_init.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * (C) Copyright 2000-2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <mpc8220.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Breath some life into the CPU... - * - * Set up the memory map, - * initialize a bunch of registers. - */ -void cpu_init_f (void) -{ - volatile flexbus8220_t *flexbus = (volatile flexbus8220_t *) MMAP_FB; - volatile pcfg8220_t *portcfg = (volatile pcfg8220_t *) MMAP_PCFG; - volatile xlbarb8220_t *xlbarb = (volatile xlbarb8220_t *) MMAP_XLBARB; - - /* Pointer is writable since we allocated a register for it */ - gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); - - /* Clear initial global data */ - memset ((void *) gd, 0, sizeof (gd_t)); - - /* Clear all port configuration */ - portcfg->pcfg0 = 0; - portcfg->pcfg1 = 0; - portcfg->pcfg2 = 0; - portcfg->pcfg3 = 0; - portcfg->pcfg2 = CONFIG_SYS_GP1_PORT2_CONFIG; - portcfg->pcfg3 = CONFIG_SYS_PCI_PORT3_CONFIG | CONFIG_SYS_GP2_PORT3_CONFIG; - - /* - * Flexbus Controller: configure chip selects and enable them - */ -#if defined (CONFIG_SYS_CS0_BASE) - flexbus->csar0 = CONFIG_SYS_CS0_BASE; - -/* Sorcery-C can hang-up after CTRL reg initialization */ -#if defined (CONFIG_SYS_CS0_CTRL) - flexbus->cscr0 = CONFIG_SYS_CS0_CTRL; -#endif - flexbus->csmr0 = ((CONFIG_SYS_CS0_MASK - 1) & 0xffff0000) | 1; - __asm__ volatile ("sync"); -#endif -#if defined (CONFIG_SYS_CS1_BASE) - flexbus->csar1 = CONFIG_SYS_CS1_BASE; - flexbus->cscr1 = CONFIG_SYS_CS1_CTRL; - flexbus->csmr1 = ((CONFIG_SYS_CS1_MASK - 1) & 0xffff0000) | 1; - __asm__ volatile ("sync"); -#endif -#if defined (CONFIG_SYS_CS2_BASE) - flexbus->csar2 = CONFIG_SYS_CS2_BASE; - flexbus->cscr2 = CONFIG_SYS_CS2_CTRL; - flexbus->csmr2 = ((CONFIG_SYS_CS2_MASK - 1) & 0xffff0000) | 1; - portcfg->pcfg3 |= CONFIG_SYS_CS2_PORT3_CONFIG; - __asm__ volatile ("sync"); -#endif -#if defined (CONFIG_SYS_CS3_BASE) - flexbus->csar3 = CONFIG_SYS_CS3_BASE; - flexbus->cscr3 = CONFIG_SYS_CS3_CTRL; - flexbus->csmr3 = ((CONFIG_SYS_CS3_MASK - 1) & 0xffff0000) | 1; - portcfg->pcfg3 |= CONFIG_SYS_CS3_PORT3_CONFIG; - __asm__ volatile ("sync"); -#endif -#if defined (CONFIG_SYS_CS4_BASE) - flexbus->csar4 = CONFIG_SYS_CS4_BASE; - flexbus->cscr4 = CONFIG_SYS_CS4_CTRL; - flexbus->csmr4 = ((CONFIG_SYS_CS4_MASK - 1) & 0xffff0000) | 1; - portcfg->pcfg3 |= CONFIG_SYS_CS4_PORT3_CONFIG; - __asm__ volatile ("sync"); -#endif -#if defined (CONFIG_SYS_CS5_BASE) - flexbus->csar5 = CONFIG_SYS_CS5_BASE; - flexbus->cscr5 = CONFIG_SYS_CS5_CTRL; - flexbus->csmr5 = ((CONFIG_SYS_CS5_MASK - 1) & 0xffff0000) | 1; - portcfg->pcfg3 |= CONFIG_SYS_CS5_PORT3_CONFIG; - __asm__ volatile ("sync"); -#endif - - /* This section of the code cannot place in cpu_init_r(), - it will cause the system to hang */ - /* enable timebase */ - xlbarb->addrTenTimeOut = 0x1000; - xlbarb->dataTenTimeOut = 0x1000; - xlbarb->busActTimeOut = 0x2000; - - xlbarb->config = 0x00002000; - - /* Master Priority Enable */ - xlbarb->mastPriority = 0; - xlbarb->mastPriEn = 0xff; -} - -/* - * initialize higher level parts of CPU like time base and timers - */ -int cpu_init_r (void) -{ - /* this may belongs to disable interrupt section */ - /* mask all interrupts */ - *(vu_long *) 0xf0000700 = 0xfffffc00; - *(vu_long *) 0xf0000714 |= 0x0001ffff; - *(vu_long *) 0xf0000710 &= ~0x00000f00; - - /* route critical ints to normal ints */ - *(vu_long *) 0xf0000710 |= 0x00000001; - -#if defined(CONFIG_CMD_NET) && defined(CONFIG_MPC8220_FEC) - /* load FEC microcode */ - loadtask (0, 2); -#endif - return (0); -} diff --git a/arch/powerpc/cpu/mpc8220/dma.h b/arch/powerpc/cpu/mpc8220/dma.h deleted file mode 100644 index d06ee6313..000000000 --- a/arch/powerpc/cpu/mpc8220/dma.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * This file is based on code - * (C) Copyright Motorola, Inc., 2000 - * - * MPC8220 dma header file - */ - -#ifndef __MPC8220_DMA_H -#define __MPC8220_DMA_H - -#include <common.h> -#include <mpc8220.h> - -/* Task number assignment */ -#define FEC_RECV_TASK_NO 0 -#define FEC_XMIT_TASK_NO 1 - -/*--------------------------------------------------------------------- - * Stuff for Ethernet Tx/Rx tasks - *--------------------------------------------------------------------- - */ - -/* Layout of Ethernet controller Parameter SRAM area: - * ---------------------------------------------------------------- - * 0x00: TBD_BASE, base address of TX BD ring - * 0x04: TBD_NEXT, address of next TX BD to be processed - * 0x08: RBD_BASE, base address of RX BD ring - * 0x0C: RBD_NEXT, address of next RX BD to be processed - * --------------------------------------------------------------- - * ALL PARAMETERS ARE ALL LONGWORDS (FOUR BYTES EACH). - */ - -/* base address of SRAM area to store parameters used by Ethernet tasks */ -#define FEC_PARAM_BASE (MMAP_SRAM + 0x5b00) - -/* base address of SRAM area for buffer descriptors */ -#define FEC_BD_BASE (MMAP_SRAM + 0x5b20) - -/*--------------------------------------------------------------------- - * common shortcuts used by driver C code - *--------------------------------------------------------------------- - */ - -/* Disable SmartDMA task */ -#define DMA_TASK_DISABLE(tasknum) \ -{ \ - volatile ushort *tcr = (ushort *)(MMAP_DMA + 0x0000001c + 2 * tasknum); \ - *tcr = (*tcr) & (~0x8000); \ -} - -/* Enable SmartDMA task */ -#define DMA_TASK_ENABLE(tasknum) \ -{ \ - volatile ushort *tcr = (ushort *) (MMAP_DMA + 0x0000001c + 2 * tasknum);\ - *tcr = (*tcr) | 0x8000; \ -} - -/* Clear interrupt pending bits */ -#define DMA_CLEAR_IEVENT(tasknum) \ -{ \ - struct mpc8220_dma *dma = (struct mpc8220_dma *)MMAP_DMA; \ - dma->IntPend = (1 << tasknum); \ -} - -#endif /* __MPC8220_DMA_H */ diff --git a/arch/powerpc/cpu/mpc8220/dramSetup.c b/arch/powerpc/cpu/mpc8220/dramSetup.c deleted file mode 100644 index 52cf1333f..000000000 --- a/arch/powerpc/cpu/mpc8220/dramSetup.c +++ /dev/null @@ -1,752 +0,0 @@ -/* - * (C) Copyright 2004, Freescale, Inc - * TsiChung Liew, Tsi-Chung.Liew@freescale.com - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* -DESCRIPTION -Read Dram spd and base on its information to calculate the memory size, -characteristics to initialize the dram on MPC8220 -*/ - -#include <common.h> -#include <mpc8220.h> -#include "i2cCore.h" -#include "dramSetup.h" - -DECLARE_GLOBAL_DATA_PTR; - -#define SPD_SIZE CONFIG_SYS_SDRAM_SPD_SIZE -#define DRAM_SPD (CONFIG_SYS_SDRAM_SPD_I2C_ADDR)<<1 /* on Board SPD eeprom */ -#define TOTAL_BANK CONFIG_SYS_SDRAM_TOTAL_BANKS - -int spd_status (volatile i2c8220_t * pi2c, u8 sta_bit, u8 truefalse) -{ - int i; - - for (i = 0; i < I2C_POLL_COUNT; i++) { - if ((pi2c->sr & sta_bit) == (truefalse ? sta_bit : 0)) - return (OK); - } - - return (ERROR); -} - -int spd_clear (volatile i2c8220_t * pi2c) -{ - pi2c->adr = 0; - pi2c->fdr = 0; - pi2c->cr = 0; - pi2c->sr = 0; - - return (OK); -} - -int spd_stop (volatile i2c8220_t * pi2c) -{ - pi2c->cr &= ~I2C_CTL_STA; /* Generate stop signal */ - if (spd_status (pi2c, I2C_STA_BB, 0) != OK) - return ERROR; - - return (OK); -} - -int spd_readbyte (volatile i2c8220_t * pi2c, u8 * readb, int *index) -{ - pi2c->sr &= ~I2C_STA_IF; /* Clear Interrupt Bit */ - *readb = pi2c->dr; /* Read a byte */ - - /* - Set I2C_CTRL_TXAK will cause Transfer pending and - set I2C_CTRL_STA will cause Interrupt pending - */ - if (*index != 2) { - if (spd_status (pi2c, I2C_STA_CF, 1) != OK) /* Transfer not complete? */ - return ERROR; - } - - if (*index != 1) { - if (spd_status (pi2c, I2C_STA_IF, 1) != OK) - return ERROR; - } - - return (OK); -} - -int readSpdData (u8 * spdData) -{ - volatile i2c8220_t *pi2cReg; - volatile pcfg8220_t *pcfg; - u8 slvAdr = DRAM_SPD; - u8 Tmp; - int Length = SPD_SIZE; - int i = 0; - - /* Enable Port Configuration for SDA and SDL signals */ - pcfg = (volatile pcfg8220_t *) (MMAP_PCFG); - __asm__ ("sync"); - pcfg->pcfg3 &= ~CONFIG_SYS_I2C_PORT3_CONFIG; - __asm__ ("sync"); - - /* Points the structure to I2c mbar memory offset */ - pi2cReg = (volatile i2c8220_t *) (MMAP_I2C); - - - /* Clear FDR, ADR, SR and CR reg */ - pi2cReg->adr = 0; - pi2cReg->fdr = 0; - pi2cReg->cr = 0; - pi2cReg->sr = 0; - - /* Set for fix XLB Bus Frequency */ - switch (gd->bus_clk) { - case 60000000: - pi2cReg->fdr = 0x15; - break; - case 70000000: - pi2cReg->fdr = 0x16; - break; - case 80000000: - pi2cReg->fdr = 0x3a; - break; - case 90000000: - pi2cReg->fdr = 0x17; - break; - case 100000000: - pi2cReg->fdr = 0x3b; - break; - case 110000000: - pi2cReg->fdr = 0x18; - break; - case 120000000: - pi2cReg->fdr = 0x19; - break; - case 130000000: - pi2cReg->fdr = 0x1a; - break; - } - - pi2cReg->adr = CONFIG_SYS_I2C_SLAVE<<1; - - pi2cReg->cr = I2C_CTL_EN; /* Set Enable */ - - /* - The I2C bus should be in Idle state. If the bus is busy, - clear the STA bit in control register - */ - if (spd_status (pi2cReg, I2C_STA_BB, 0) != OK) { - if ((pi2cReg->cr & I2C_CTL_STA) == I2C_CTL_STA) - pi2cReg->cr &= ~I2C_CTL_STA; - - /* Check again if it is still busy, return error if found */ - if (spd_status (pi2cReg, I2C_STA_BB, 1) == OK) - return ERROR; - } - - pi2cReg->cr |= I2C_CTL_TX; /* Enable the I2c for TX, Ack */ - pi2cReg->cr |= I2C_CTL_STA; /* Generate start signal */ - - if (spd_status (pi2cReg, I2C_STA_BB, 1) != OK) - return ERROR; - - - /* Write slave address */ - pi2cReg->sr &= ~I2C_STA_IF; /* Clear Interrupt */ - pi2cReg->dr = slvAdr; /* Write a byte */ - - if (spd_status (pi2cReg, I2C_STA_CF, 1) != OK) { /* Transfer not complete? */ - spd_stop (pi2cReg); - return ERROR; - } - - if (spd_status (pi2cReg, I2C_STA_IF, 1) != OK) { - spd_stop (pi2cReg); - return ERROR; - } - - - /* Issue the offset to start */ - pi2cReg->sr &= ~I2C_STA_IF; /* Clear Interrupt */ - pi2cReg->dr = 0; /* Write a byte */ - - if (spd_status (pi2cReg, I2C_STA_CF, 1) != OK) { /* Transfer not complete? */ - spd_stop (pi2cReg); - return ERROR; - } - - if (spd_status (pi2cReg, I2C_STA_IF, 1) != OK) { - spd_stop (pi2cReg); - return ERROR; - } - - - /* Set repeat start */ - pi2cReg->cr |= I2C_CTL_RSTA; /* Repeat Start */ - - pi2cReg->sr &= ~I2C_STA_IF; /* Clear Interrupt */ - pi2cReg->dr = slvAdr | 1; /* Write a byte */ - - if (spd_status (pi2cReg, I2C_STA_CF, 1) != OK) { /* Transfer not complete? */ - spd_stop (pi2cReg); - return ERROR; - } - - if (spd_status (pi2cReg, I2C_STA_IF, 1) != OK) { - spd_stop (pi2cReg); - return ERROR; - } - - if (((pi2cReg->sr & 0x07) == 0x07) || (pi2cReg->sr & 0x01)) - return ERROR; - - pi2cReg->cr &= ~I2C_CTL_TX; /* Set receive mode */ - - if (((pi2cReg->sr & 0x07) == 0x07) || (pi2cReg->sr & 0x01)) - return ERROR; - - /* Dummy Read */ - if (spd_readbyte (pi2cReg, &Tmp, &i) != OK) { - spd_stop (pi2cReg); - return ERROR; - } - - i = 0; - while (Length) { - if (Length == 2) - pi2cReg->cr |= I2C_CTL_TXAK; - - if (Length == 1) - pi2cReg->cr &= ~I2C_CTL_STA; - - if (spd_readbyte (pi2cReg, spdData, &Length) != OK) { - return spd_stop (pi2cReg); - } - i++; - Length--; - spdData++; - } - - /* Stop the service */ - spd_stop (pi2cReg); - - return OK; -} - -int getBankInfo (int bank, draminfo_t * pBank) -{ - int status; - int checksum; - int count; - u8 spdData[SPD_SIZE]; - - - if (bank > 2 || pBank == 0) { - /* illegal values */ - return (-42); - } - - status = readSpdData (&spdData[0]); - if (status < 0) - return (-1); - - /* check the checksum */ - for (count = 0, checksum = 0; count < LOC_CHECKSUM; count++) - checksum += spdData[count]; - - checksum = checksum - ((checksum / 256) * 256); - - if (checksum != spdData[LOC_CHECKSUM]) - return (-2); - - /* Get the memory type */ - if (! - ((spdData[LOC_TYPE] == TYPE_DDR) - || (spdData[LOC_TYPE] == TYPE_SDR))) - /* not one of the types we support */ - return (-3); - - pBank->type = spdData[LOC_TYPE]; - - /* Set logical banks */ - pBank->banks = spdData[LOC_LOGICAL_BANKS]; - - /* Check that we have enough physical banks to cover the bank we are - * figuring out. Odd-numbered banks correspond to the second bank - * on the device. - */ - if (bank & 1) { - /* Second bank of a "device" */ - if (spdData[LOC_PHYS_BANKS] < 2) - /* this bank doesn't exist on the "device" */ - return (-4); - - if (spdData[LOC_ROWS] & 0xf0) - /* Two asymmetric banks */ - pBank->rows = spdData[LOC_ROWS] >> 4; - else - pBank->rows = spdData[LOC_ROWS]; - - if (spdData[LOC_COLS] & 0xf0) - /* Two asymmetric banks */ - pBank->cols = spdData[LOC_COLS] >> 4; - else - pBank->cols = spdData[LOC_COLS]; - } else { - /* First bank of a "device" */ - pBank->rows = spdData[LOC_ROWS]; - pBank->cols = spdData[LOC_COLS]; - } - - pBank->width = spdData[LOC_WIDTH_HIGH] << 8 | spdData[LOC_WIDTH_LOW]; - pBank->bursts = spdData[LOC_BURSTS]; - pBank->CAS = spdData[LOC_CAS]; - pBank->CS = spdData[LOC_CS]; - pBank->WE = spdData[LOC_WE]; - pBank->Trp = spdData[LOC_Trp]; - pBank->Trcd = spdData[LOC_Trcd]; - pBank->buffered = spdData[LOC_Buffered] & 1; - pBank->refresh = spdData[LOC_REFRESH]; - - return (0); -} - - -/* checkMuxSetting -- given a row/column device geometry, return a mask - * of the valid DRAM controller addr_mux settings for - * that geometry. - * - * Arguments: u8 rows: number of row addresses in this device - * u8 columns: number of column addresses in this device - * - * Returns: a mask of the allowed addr_mux settings for this - * geometry. Each bit in the mask represents a - * possible addr_mux settings (for example, the - * (1<<2) bit in the mask represents the 0b10 setting)/ - * - */ -u8 checkMuxSetting (u8 rows, u8 columns) -{ - muxdesc_t *pIdx, *pMux; - u8 mask; - int lrows, lcolumns; - u32 mux[4] = { 0x00080c04, 0x01080d03, 0x02080e02, 0xffffffff }; - - /* Setup MuxDescriptor in SRAM space */ - /* MUXDESC AddressRuns [] = { - { 0, 8, 12, 4 }, / setting, columns, rows, extra columns / - { 1, 8, 13, 3 }, / setting, columns, rows, extra columns / - { 2, 8, 14, 2 }, / setting, columns, rows, extra columns / - { 0xff } / list terminator / - }; */ - - pIdx = (muxdesc_t *) & mux[0]; - - /* Check rows x columns against each possible address mux setting */ - for (pMux = pIdx, mask = 0;; pMux++) { - lrows = rows; - lcolumns = columns; - - if (pMux->MuxValue == 0xff) - break; /* end of list */ - - /* For a given mux setting, since we want all the memory in a - * device to be contiguous, we want the device "use up" the - * address lines such that there are no extra column or row - * address lines on the device. - */ - - lcolumns -= pMux->Columns; - if (lcolumns < 0) - /* Not enough columns to get to the rows */ - continue; - - lrows -= pMux->Rows; - if (lrows > 0) - /* we have extra rows left -- can't do that! */ - continue; - - /* At this point, we either have to have used up all the - * rows or we have to have no columns left. - */ - - if (lcolumns != 0 && lrows != 0) - /* rows AND columns are left. Bad! */ - continue; - - lcolumns -= pMux->MoreColumns; - - if (lcolumns <= 0) - mask |= (1 << pMux->MuxValue); - } - - return (mask); -} - - -u32 dramSetup (void) -{ - draminfo_t DramInfo[TOTAL_BANK]; - draminfo_t *pDramInfo; - u32 size, temp, cfg_value, mode_value, refresh; - u8 *ptr; - u8 bursts, Trp, Trcd, type, buffered; - u8 muxmask, rows, columns; - int count, banknum; - u32 *prefresh, *pIdx; - u32 refrate[8] = { 15625, 3900, 7800, 31300, - 62500, 125000, 0xffffffff, 0xffffffff - }; - volatile sysconf8220_t *sysconf; - volatile memctl8220_t *memctl; - - sysconf = (volatile sysconf8220_t *) MMAP_MBAR; - memctl = (volatile memctl8220_t *) MMAP_MEMCTL; - - /* Set everything in the descriptions to zero */ - ptr = (u8 *) & DramInfo[0]; - for (count = 0; count < sizeof (DramInfo); count++) - *ptr++ = 0; - - for (banknum = 0; banknum < TOTAL_BANK; banknum++) - sysconf->cscfg[banknum]; - - /* Descriptions of row/column address muxing for various - * addr_mux settings. - */ - - pIdx = prefresh = (u32 *) & refrate[0]; - - /* Get all the info for all three logical banks */ - bursts = 0xff; - Trp = 0; - Trcd = 0; - type = 0; - buffered = 0xff; - refresh = 0xffffffff; - muxmask = 0xff; - - /* Two bank, CS0 and CS1 */ - for (banknum = 0, pDramInfo = &DramInfo[0]; - banknum < TOTAL_BANK; banknum++, pDramInfo++) { - pDramInfo->ordinal = banknum; /* initial sorting */ - if (getBankInfo (banknum, pDramInfo) < 0) - continue; - - /* get cumulative parameters of all three banks */ - if (type && pDramInfo->type != type) - return 0; - - type = pDramInfo->type; - rows = pDramInfo->rows; - columns = pDramInfo->cols; - - /* This chip only supports 13 DRAM memory lines, but some devices - * have 14 rows. To deal with this, ignore the 14th address line - * by limiting the number of rows (and columns) to 13. This will - * mean that for 14-row devices we will only be able to use - * half of the memory, but it's better than nothing. - */ - if (rows > 13) - rows = 13; - if (columns > 13) - columns = 13; - - pDramInfo->size = - ((1 << (rows + columns)) * pDramInfo->width); - pDramInfo->size *= pDramInfo->banks; - pDramInfo->size >>= 3; - - /* figure out which addr_mux configurations will support this device */ - muxmask &= checkMuxSetting (rows, columns); - if (muxmask == 0) - return 0; - - buffered = pDramInfo->buffered; - bursts &= pDramInfo->bursts; /* union of all bursts */ - if (pDramInfo->Trp > Trp) /* worst case (longest) Trp */ - Trp = pDramInfo->Trp; - - if (pDramInfo->Trcd > Trcd) /* worst case (longest) Trcd */ - Trcd = pDramInfo->Trcd; - - prefresh = pIdx; - /* worst case (shortest) Refresh period */ - if (refresh > prefresh[pDramInfo->refresh & 7]) - refresh = prefresh[pDramInfo->refresh & 7]; - - } /* for loop */ - - - /* We only allow a burst length of 8! */ - if (!(bursts & 8)) - bursts = 8; - - /* Sort the devices. In order to get each chip select region - * aligned properly, put the biggest device at the lowest address. - * A simple bubble sort will do the trick. - */ - for (banknum = 0, pDramInfo = &DramInfo[0]; - banknum < TOTAL_BANK; banknum++, pDramInfo++) { - int i; - - for (i = 0; i < TOTAL_BANK; i++) { - if (pDramInfo->size < DramInfo[i].size && - pDramInfo->ordinal < DramInfo[i].ordinal) { - /* If the current bank is smaller, but if the ordinal is also - * smaller, swap the ordinals - */ - u8 temp8; - - temp8 = DramInfo[i].ordinal; - DramInfo[i].ordinal = pDramInfo->ordinal; - pDramInfo->ordinal = temp8; - } - } - } - - - /* Now figure out the base address for each bank. While - * we're at it, figure out how much memory there is. - * - */ - size = 0; - for (banknum = 0; banknum < TOTAL_BANK; banknum++) { - int i; - - for (i = 0; i < TOTAL_BANK; i++) { - if (DramInfo[i].ordinal == banknum - && DramInfo[i].size != 0) { - DramInfo[i].base = size; - size += DramInfo[i].size; - } - } - } - - /* Set up the Drive Strength register */ - sysconf->sdramds = CONFIG_SYS_SDRAM_DRIVE_STRENGTH; - - /* ********************** Cfg 1 ************************* */ - - /* Set the single read to read/write/precharge delay */ - cfg_value = CFG1_SRD2RWP ((type == TYPE_DDR) ? 7 : 0xb); - - /* Set the single write to read/write/precharge delay. - * This may or may not be correct. The controller spec - * says "tWR", but "tWR" does not appear in the SPD. It - * always seems to be 15nsec for the class of device we're - * using, which turns out to be 2 clock cycles at 133MHz, - * so that's what we're going to use. - * - * HOWEVER, because of a bug in the controller, for DDR - * we need to set this to be the same as the value - * calculated for bwt2rwp. - */ - cfg_value |= CFG1_SWT2RWP ((type == TYPE_DDR) ? 7 : 2); - - /* Set the Read CAS latency. We're going to use a CL of - * 2.5 for DDR and 2 SDR. - */ - cfg_value |= CFG1_RLATENCY ((type == TYPE_DDR) ? 7 : 2); - - - /* Set the Active to Read/Write delay. This depends - * on Trcd which is reported as nanoseconds times 4. - * We want to calculate Trcd (in nanoseconds) times XLB clock (in Hz) - * which gives us a dimensionless quantity. Play games with - * the divisions so we don't run out of dynamic ranges. - */ - /* account for megaherz and the times 4 */ - temp = (Trcd * (gd->bus_clk / 1000000)) / 4; - - /* account for nanoseconds and round up, with a minimum value of 2 */ - temp = ((temp + 999) / 1000) - 1; - if (temp < 2) - temp = 2; - - cfg_value |= CFG1_ACT2WR (temp); - - /* Set the precharge to active delay. This depends - * on Trp which is reported as nanoseconds times 4. - * We want to calculate Trp (in nanoseconds) times XLB clock (in Hz) - * which gives us a dimensionless quantity. Play games with - * the divisions so we don't run out of dynamic ranges. - */ - /* account for megaherz and the times 4 */ - temp = (Trp * (gd->bus_clk / 1000000)) / 4; - - /* account for nanoseconds and round up, then subtract 1, with a - * minumum value of 1 and a maximum value of 7. - */ - temp = (((temp + 999) / 1000) - 1) & 7; - if (temp < 1) - temp = 1; - - cfg_value |= CFG1_PRE2ACT (temp); - - /* Set refresh to active delay. This depends - * on Trfc which is not reported in the SPD. - * We'll use a nominal value of 75nsec which is - * what the controller spec uses. - */ - temp = (75 * (gd->bus_clk / 1000000)); - /* account for nanoseconds and round up, then subtract 1 */ - cfg_value |= CFG1_REF2ACT (((temp + 999) / 1000) - 1); - - /* Set the write latency, using the values given in the controller spec */ - cfg_value |= CFG1_WLATENCY ((type == TYPE_DDR) ? 3 : 0); - memctl->cfg1 = cfg_value; /* cfg 1 */ - asm volatile ("sync"); - - - /* ********************** Cfg 2 ************************* */ - - /* Set the burst read to read/precharge delay */ - cfg_value = CFG2_BRD2RP ((type == TYPE_DDR) ? 5 : 8); - - /* Set the burst write to read/precharge delay. Semi-magic numbers - * based on the controller spec recommendations, assuming tWR is - * two clock cycles. - */ - cfg_value |= CFG2_BWT2RWP ((type == TYPE_DDR) ? 7 : 10); - - /* Set the Burst read to write delay. Semi-magic numbers - * based on the DRAM controller documentation. - */ - cfg_value |= CFG2_BRD2WT ((type == TYPE_DDR) ? 7 : 0xb); - - /* Set the burst length -- must be 8!! Well, 7, actually, becuase - * it's burst lenght minus 1. - */ - cfg_value |= CFG2_BURSTLEN (7); - memctl->cfg2 = cfg_value; /* cfg 2 */ - asm volatile ("sync"); - - - /* ********************** mode ************************* */ - - /* Set enable bit, CKE high/low bits, and the DDR/SDR mode bit, - * disable automatic refresh. - */ - cfg_value = CTL_MODE_ENABLE | CTL_CKE_HIGH | - ((type == TYPE_DDR) ? CTL_DDR_MODE : 0); - - /* Set the address mux based on whichever setting(s) is/are common - * to all the devices we have. If there is more than one, choose - * one arbitrarily. - */ - if (muxmask & 0x4) - cfg_value |= CTL_ADDRMUX (2); - else if (muxmask & 0x2) - cfg_value |= CTL_ADDRMUX (1); - else - cfg_value |= CTL_ADDRMUX (0); - - /* Set the refresh interval. */ - temp = ((refresh * (gd->bus_clk / 1000000)) / (1000 * 64)) - 1; - cfg_value |= CTL_REFRESH_INTERVAL (temp); - - /* Set buffered/non-buffered memory */ - if (buffered) - cfg_value |= CTL_BUFFERED; - - memctl->ctrl = cfg_value; /* ctrl */ - asm volatile ("sync"); - - if (type == TYPE_DDR) { - /* issue precharge all */ - temp = cfg_value | CTL_PRECHARGE_CMD; - memctl->ctrl = temp; /* ctrl */ - asm volatile ("sync"); - } - - - /* Set up mode value for CAS latency */ -#if (CONFIG_SYS_SDRAM_CAS_LATENCY==5) /* CL=2.5 */ - mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) | - MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2p5) | MODE_CMD); -#else - mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) | - MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2) | MODE_CMD); -#endif - asm volatile ("sync"); - - /* Write Extended Mode - enable DLL */ - if (type == TYPE_DDR) { - temp = MODE_EXTENDED | MODE_X_DLL_ENABLE | - MODE_X_DS_NORMAL | MODE_CMD; - memctl->mode = (temp >> 16); /* mode */ - asm volatile ("sync"); - - /* Write Mode - reset DLL, set CAS latency */ - temp = mode_value | MODE_OPMODE (MODE_OPMODE_RESETDLL); - memctl->mode = (temp >> 16); /* mode */ - asm volatile ("sync"); - } - - /* Program the chip selects. */ - for (banknum = 0; banknum < TOTAL_BANK; banknum++) { - if (DramInfo[banknum].size != 0) { - u32 mask; - int i; - - for (i = 0, mask = 1; i < 32; mask <<= 1, i++) { - if (DramInfo[banknum].size & mask) - break; - } - temp = (DramInfo[banknum].base & 0xfff00000) | (i - - 1); - - sysconf->cscfg[banknum] = temp; - asm volatile ("sync"); - } - } - - /* Wait for DLL lock */ - udelay (200); - - temp = cfg_value | CTL_PRECHARGE_CMD; /* issue precharge all */ - memctl->ctrl = temp; /* ctrl */ - asm volatile ("sync"); - - temp = cfg_value | CTL_REFRESH_CMD; /* issue precharge all */ - memctl->ctrl = temp; /* ctrl */ - asm volatile ("sync"); - - memctl->ctrl = temp; /* ctrl */ - asm volatile ("sync"); - - /* Write Mode - DLL normal */ - temp = mode_value | MODE_OPMODE (MODE_OPMODE_NORMAL); - memctl->mode = (temp >> 16); /* mode */ - asm volatile ("sync"); - - /* Enable refresh, enable DQS's (if DDR), and lock the control register */ - cfg_value &= ~CTL_MODE_ENABLE; /* lock register */ - cfg_value |= CTL_REFRESH_ENABLE; /* enable refresh */ - - if (type == TYPE_DDR) - cfg_value |= CTL_DQSOEN (0xf); /* enable DQS's for DDR */ - - memctl->ctrl = cfg_value; /* ctrl */ - asm volatile ("sync"); - - return size; -} diff --git a/arch/powerpc/cpu/mpc8220/dramSetup.h b/arch/powerpc/cpu/mpc8220/dramSetup.h deleted file mode 100644 index 3b64e088c..000000000 --- a/arch/powerpc/cpu/mpc8220/dramSetup.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * dramSetup.h - * - * Prototypes, etc. for the Motorola MPC8220 - * embedded cpu chips - * - * 2004 (c) Freescale, Inc. - * Author: TsiChung Liew <Tsi-Chung.Liew@freescale.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#ifndef __INCdramsetuph -#define __INCdramsetuph -#ifndef __ASSEMBLY__ -/* Where various things are in the SPD */ -#define LOC_TYPE 2 -#define LOC_CHECKSUM 63 -#define LOC_PHYS_BANKS 5 -#define LOC_LOGICAL_BANKS 17 -#define LOC_ROWS 3 -#define LOC_COLS 4 -#define LOC_WIDTH_HIGH 7 -#define LOC_WIDTH_LOW 6 -#define LOC_REFRESH 12 -#define LOC_BURSTS 16 -#define LOC_CAS 18 -#define LOC_CS 19 -#define LOC_WE 20 -#define LOC_Tcyc 9 -#define LOC_Tac 10 -#define LOC_Trp 27 -#define LOC_Trrd 28 -#define LOC_Trcd 29 -#define LOC_Tras 30 -#define LOC_Buffered 21 -/* Types of memory the SPD can tell us about. - * We can actually only use SDRAM and DDR. - */ -#define TYPE_DRAM 1 /* plain old dram */ -#define TYPE_EDO 2 /* EDO dram */ -#define TYPE_Nibble 3 /* serial nibble memory */ -#define TYPE_SDR 4 /* SDRAM */ -#define TYPE_ROM 5 /* */ -#define TYPE_SGRRAM 6 /* graphics memory */ -#define TYPE_DDR 7 /* DDR sdram */ -#define SDRAMDS_MASK 0x3 /* each field is 2 bits wide */ -#define SDRAMDS_SBE_SHIFT 8 /* Clock enable drive strength */ -#define SDRAMDS_SBC_SHIFT 6 /* Clocks drive strength */ -#define SDRAMDS_SBA_SHIFT 4 /* Address drive strength */ -#define SDRAMDS_SBS_SHIFT 2 /* SDR DQS drive strength */ -#define SDRAMDS_SBD_SHIFT 0 /* Data and DQS drive strength */ -#define DRIVE_STRENGTH_HIGH 0 -#define DRIVE_STRENGTH_MED 1 -#define DRIVE_STRENGTH_LOW 2 -#define DRIVE_STRENGTH_OFF 3 - -#define OK 0 -#define ERROR -1 -/* Structure to hold information about address muxing. */ - typedef struct tagMuxDescriptor { - u8 MuxValue; - u8 Columns; - u8 Rows; - u8 MoreColumns; -} muxdesc_t; - -/* Structure to define one physical bank of - * memory. Note that dram size in bytes is - * (2^^(rows+columns)) * width * banks / 8 -*/ -typedef struct tagDramInfo { - u32 size; /* size in bytes */ - u32 base; /* base address */ - u8 ordinal; /* where in the memory map will we put this */ - u8 type; - u8 rows; - u8 cols; - u16 width; /* width of each chip in bits */ - u8 banks; /* number of chips, aka logical banks */ - u8 bursts; /* bit-encoded allowable burst length */ - u8 CAS; /* bit-encoded CAS latency values */ - u8 CS; /* bit-encoded CS latency values */ - u8 WE; /* bit-encoded WE latency values */ - u8 Trp; /* bit-encoded row precharge time */ - u8 Trcd; /* bit-encoded RAS to CAS delay */ - u8 buffered; /* buffered or not */ - u8 refresh; /* encoded refresh rate */ -} draminfo_t; - -#endif /* __ASSEMBLY__ */ - -#endif /* __INCdramsetuph */ diff --git a/arch/powerpc/cpu/mpc8220/fec.c b/arch/powerpc/cpu/mpc8220/fec.c deleted file mode 100644 index 43fa802ca..000000000 --- a/arch/powerpc/cpu/mpc8220/fec.c +++ /dev/null @@ -1,961 +0,0 @@ -/* - * (C) Copyright 2003-2010 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * This file is based on mpc4200fec.c, - * (C) Copyright Motorola, Inc., 2000 - */ - -#include <common.h> -#include <mpc8220.h> -#include <malloc.h> -#include <net.h> -#include <miiphy.h> -#include "dma.h" -#include "fec.h" - -#undef DEBUG -#if defined(CONFIG_CMD_NET) && defined(CONFIG_MPC8220_FEC) - -#if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) -#error "CONFIG_MII has to be defined!" -#endif - -#ifdef DEBUG -static void tfifo_print (char *devname, mpc8220_fec_priv * fec); -static void rfifo_print (char *devname, mpc8220_fec_priv * fec); -#endif /* DEBUG */ - -typedef struct { - u8 data[1500]; /* actual data */ - int length; /* actual length */ - int used; /* buffer in use or not */ - u8 head[16]; /* MAC header(6 + 6 + 2) + 2(aligned) */ -} NBUF; - -int fec8220_miiphy_read (const char *devname, u8 phyAddr, u8 regAddr, u16 *retVal); -int fec8220_miiphy_write (const char *devname, u8 phyAddr, u8 regAddr, u16 data); - -/********************************************************************/ -#ifdef DEBUG -static void mpc8220_fec_phydump (char *devname) -{ - u16 phyStatus, i; - u8 phyAddr = CONFIG_PHY_ADDR; - u8 reg_mask[] = { -#if CONFIG_PHY_TYPE == 0x79c874 /* AMD Am79C874 */ - /* regs to print: 0...7, 16...19, 21, 23, 24 */ - 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, -#else - /* regs to print: 0...8, 16...20 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -#endif - }; - - for (i = 0; i < 32; i++) { - if (reg_mask[i]) { - miiphy_read (devname, phyAddr, i, &phyStatus); - printf ("Mii reg %d: 0x%04x\n", i, phyStatus); - } - } -} -#endif - -/********************************************************************/ -static int mpc8220_fec_rbd_init (mpc8220_fec_priv * fec) -{ - int ix; - char *data; - static int once = 0; - - for (ix = 0; ix < FEC_RBD_NUM; ix++) { - if (!once) { - data = (char *) malloc (FEC_MAX_PKT_SIZE); - if (data == NULL) { - printf ("RBD INIT FAILED\n"); - return -1; - } - fec->rbdBase[ix].dataPointer = (u32) data; - } - fec->rbdBase[ix].status = FEC_RBD_EMPTY; - fec->rbdBase[ix].dataLength = 0; - } - once++; - - /* - * have the last RBD to close the ring - */ - fec->rbdBase[ix - 1].status |= FEC_RBD_WRAP; - fec->rbdIndex = 0; - - return 0; -} - -/********************************************************************/ -static void mpc8220_fec_tbd_init (mpc8220_fec_priv * fec) -{ - int ix; - - for (ix = 0; ix < FEC_TBD_NUM; ix++) { - fec->tbdBase[ix].status = 0; - } - - /* - * Have the last TBD to close the ring - */ - fec->tbdBase[ix - 1].status |= FEC_TBD_WRAP; - - /* - * Initialize some indices - */ - fec->tbdIndex = 0; - fec->usedTbdIndex = 0; - fec->cleanTbdNum = FEC_TBD_NUM; -} - -/********************************************************************/ -static void mpc8220_fec_rbd_clean (mpc8220_fec_priv * fec, FEC_RBD * pRbd) -{ - /* - * Reset buffer descriptor as empty - */ - if ((fec->rbdIndex) == (FEC_RBD_NUM - 1)) - pRbd->status = (FEC_RBD_WRAP | FEC_RBD_EMPTY); - else - pRbd->status = FEC_RBD_EMPTY; - - pRbd->dataLength = 0; - - /* - * Now, we have an empty RxBD, restart the SmartDMA receive task - */ - DMA_TASK_ENABLE (FEC_RECV_TASK_NO); - - /* - * Increment BD count - */ - fec->rbdIndex = (fec->rbdIndex + 1) % FEC_RBD_NUM; -} - -/********************************************************************/ -static void mpc8220_fec_tbd_scrub (mpc8220_fec_priv * fec) -{ - FEC_TBD *pUsedTbd; - -#ifdef DEBUG - printf ("tbd_scrub: fec->cleanTbdNum = %d, fec->usedTbdIndex = %d\n", - fec->cleanTbdNum, fec->usedTbdIndex); -#endif - - /* - * process all the consumed TBDs - */ - while (fec->cleanTbdNum < FEC_TBD_NUM) { - pUsedTbd = &fec->tbdBase[fec->usedTbdIndex]; - if (pUsedTbd->status & FEC_TBD_READY) { -#ifdef DEBUG - printf ("Cannot clean TBD %d, in use\n", - fec->cleanTbdNum); -#endif - return; - } - - /* - * clean this buffer descriptor - */ - if (fec->usedTbdIndex == (FEC_TBD_NUM - 1)) - pUsedTbd->status = FEC_TBD_WRAP; - else - pUsedTbd->status = 0; - - /* - * update some indeces for a correct handling of the TBD ring - */ - fec->cleanTbdNum++; - fec->usedTbdIndex = (fec->usedTbdIndex + 1) % FEC_TBD_NUM; - } -} - -/********************************************************************/ -static void mpc8220_fec_set_hwaddr (mpc8220_fec_priv * fec, char *mac) -{ - u8 currByte; /* byte for which to compute the CRC */ - int byte; /* loop - counter */ - int bit; /* loop - counter */ - u32 crc = 0xffffffff; /* initial value */ - - /* - * The algorithm used is the following: - * we loop on each of the six bytes of the provided address, - * and we compute the CRC by left-shifting the previous - * value by one position, so that each bit in the current - * byte of the address may contribute the calculation. If - * the latter and the MSB in the CRC are different, then - * the CRC value so computed is also ex-ored with the - * "polynomium generator". The current byte of the address - * is also shifted right by one bit at each iteration. - * This is because the CRC generatore in hardware is implemented - * as a shift-register with as many ex-ores as the radixes - * in the polynomium. This suggests that we represent the - * polynomiumm itself as a 32-bit constant. - */ - for (byte = 0; byte < 6; byte++) { - currByte = mac[byte]; - for (bit = 0; bit < 8; bit++) { - if ((currByte & 0x01) ^ (crc & 0x01)) { - crc >>= 1; - crc = crc ^ 0xedb88320; - } else { - crc >>= 1; - } - currByte >>= 1; - } - } - - crc = crc >> 26; - - /* - * Set individual hash table register - */ - if (crc >= 32) { - fec->eth->iaddr1 = (1 << (crc - 32)); - fec->eth->iaddr2 = 0; - } else { - fec->eth->iaddr1 = 0; - fec->eth->iaddr2 = (1 << crc); - } - - /* - * Set physical address - */ - fec->eth->paddr1 = - (mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3]; - fec->eth->paddr2 = (mac[4] << 24) + (mac[5] << 16) + 0x8808; -} - -/********************************************************************/ -static int mpc8220_fec_init (struct eth_device *dev, bd_t * bis) -{ - mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; - struct mpc8220_dma *dma = (struct mpc8220_dma *) MMAP_DMA; - const u8 phyAddr = CONFIG_PHY_ADDR; /* Only one PHY */ - -#ifdef DEBUG - printf ("mpc8220_fec_init... Begin\n"); -#endif - - /* - * Initialize RxBD/TxBD rings - */ - mpc8220_fec_rbd_init (fec); - mpc8220_fec_tbd_init (fec); - - /* - * Set up Pin Muxing for FEC 1 - */ - *(vu_long *) MMAP_PCFG = 0; - *(vu_long *) (MMAP_PCFG + 4) = 0; - /* - * Clear FEC-Lite interrupt event register(IEVENT) - */ - fec->eth->ievent = 0xffffffff; - - /* - * Set interrupt mask register - */ - fec->eth->imask = 0x00000000; - - /* - * Set FEC-Lite receive control register(R_CNTRL): - */ - if (fec->xcv_type == SEVENWIRE) { - /* - * Frame length=1518; 7-wire mode - */ - fec->eth->r_cntrl = 0x05ee0020; /*0x05ee0000;FIXME */ - } else { - /* - * Frame length=1518; MII mode; - */ - fec->eth->r_cntrl = 0x05ee0024; /*0x05ee0004;FIXME */ - } - - fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */ - if (fec->xcv_type != SEVENWIRE) { - /* - * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock - * and do not drop the Preamble. - */ - /* - * tbd - rtm - * fec->eth->mii_speed = (((gd->arch.ipb_clk >> 20) / 5) << 1); - * No MII for 7-wire mode - */ - fec->eth->mii_speed = 0x00000030; - } - - /* - * Set Opcode/Pause Duration Register - */ - fec->eth->op_pause = 0x00010020; /*FIXME0xffff0020; */ - - /* - * Set Rx FIFO alarm and granularity value - */ - fec->eth->rfifo_cntrl = 0x0c000000; - fec->eth->rfifo_alarm = 0x0000030c; -#ifdef DEBUG - if (fec->eth->rfifo_status & 0x00700000) { - printf ("mpc8220_fec_init() RFIFO error\n"); - } -#endif - - /* - * Set Tx FIFO granularity value - */ - /*fec->eth->tfifo_cntrl = 0x0c000000; */ /*tbd - rtm */ - fec->eth->tfifo_cntrl = 0x0e000000; -#ifdef DEBUG - printf ("tfifo_status: 0x%08x\n", fec->eth->tfifo_status); - printf ("tfifo_alarm: 0x%08x\n", fec->eth->tfifo_alarm); -#endif - - /* - * Set transmit fifo watermark register(X_WMRK), default = 64 - */ - fec->eth->tfifo_alarm = 0x00000080; - fec->eth->x_wmrk = 0x2; - - /* - * Set individual address filter for unicast address - * and set physical address registers. - */ - mpc8220_fec_set_hwaddr (fec, (char *)(dev->enetaddr)); - - /* - * Set multicast address filter - */ - fec->eth->gaddr1 = 0x00000000; - fec->eth->gaddr2 = 0x00000000; - - /* - * Turn ON cheater FSM: ???? - */ - fec->eth->xmit_fsm = 0x03000000; - -#if 1 -/*#if defined(CONFIG_MPC5200)*/ - /* - * Turn off COMM bus prefetch in the MGT5200 BestComm. It doesn't - * work w/ the current receive task. - */ - dma->PtdCntrl |= 0x00000001; -#endif - - /* - * Set priority of different initiators - */ - dma->IPR0 = 7; /* always */ - dma->IPR3 = 6; /* Eth RX */ - dma->IPR4 = 5; /* Eth Tx */ - - /* - * Clear SmartDMA task interrupt pending bits - */ - DMA_CLEAR_IEVENT (FEC_RECV_TASK_NO); - - /* - * Initialize SmartDMA parameters stored in SRAM - */ - *(int *) FEC_TBD_BASE = (int) fec->tbdBase; - *(int *) FEC_RBD_BASE = (int) fec->rbdBase; - *(int *) FEC_TBD_NEXT = (int) fec->tbdBase; - *(int *) FEC_RBD_NEXT = (int) fec->rbdBase; - - if (fec->xcv_type != SEVENWIRE) { - /* - * Initialize PHY(LXT971A): - * - * Generally, on power up, the LXT971A reads its configuration - * pins to check for forced operation, If not cofigured for - * forced operation, it uses auto-negotiation/parallel detection - * to automatically determine line operating conditions. - * If the PHY device on the other side of the link supports - * auto-negotiation, the LXT971A auto-negotiates with it - * using Fast Link Pulse(FLP) Bursts. If the PHY partner does not - * support auto-negotiation, the LXT971A automatically detects - * the presence of either link pulses(10Mbps PHY) or Idle - * symbols(100Mbps) and sets its operating conditions accordingly. - * - * When auto-negotiation is controlled by software, the following - * steps are recommended. - * - * Note: - * The physical address is dependent on hardware configuration. - * - */ - int timeout = 1; - u16 phyStatus; - - /* - * Reset PHY, then delay 300ns - */ - miiphy_write (dev->name, phyAddr, 0x0, 0x8000); - udelay (1000); - - if (fec->xcv_type == MII10) { - /* - * Force 10Base-T, FDX operation - */ -#ifdef DEBUG - printf ("Forcing 10 Mbps ethernet link... "); -#endif - miiphy_read (dev->name, phyAddr, 0x1, &phyStatus); - /* - miiphy_write(fec, phyAddr, 0x0, 0x0100); - */ - miiphy_write (dev->name, phyAddr, 0x0, 0x0180); - - timeout = 20; - do { /* wait for link status to go down */ - udelay (10000); - if ((timeout--) == 0) { -#ifdef DEBUG - printf ("hmmm, should not have waited..."); -#endif - break; - } - miiphy_read (dev->name, phyAddr, 0x1, &phyStatus); -#ifdef DEBUG - printf ("="); -#endif - } while ((phyStatus & 0x0004)); /* !link up */ - - timeout = 1000; - do { /* wait for link status to come back up */ - udelay (10000); - if ((timeout--) == 0) { - printf ("failed. Link is down.\n"); - break; - } - miiphy_read (dev->name, phyAddr, 0x1, &phyStatus); -#ifdef DEBUG - printf ("+"); -#endif - } while (!(phyStatus & 0x0004)); /* !link up */ - -#ifdef DEBUG - printf ("done.\n"); -#endif - } else { /* MII100 */ - /* - * Set the auto-negotiation advertisement register bits - */ - miiphy_write (dev->name, phyAddr, 0x4, 0x01e1); - - /* - * Set MDIO bit 0.12 = 1(&& bit 0.9=1?) to enable auto-negotiation - */ - miiphy_write (dev->name, phyAddr, 0x0, 0x1200); - - /* - * Wait for AN completion - */ - timeout = 5000; - do { - udelay (1000); - - if ((timeout--) == 0) { -#ifdef DEBUG - printf ("PHY auto neg 0 failed...\n"); -#endif - return -1; - } - - if (miiphy_read (dev->name, phyAddr, 0x1, &phyStatus) != - 0) { -#ifdef DEBUG - printf ("PHY auto neg 1 failed 0x%04x...\n", phyStatus); -#endif - return -1; - } - } while (!(phyStatus & 0x0004)); - -#ifdef DEBUG - printf ("PHY auto neg complete! \n"); -#endif - } - - } - - /* - * Enable FEC-Lite controller - */ - fec->eth->ecntrl |= 0x00000006; - -#ifdef DEBUG - if (fec->xcv_type != SEVENWIRE) - mpc8220_fec_phydump (dev->name); -#endif - - /* - * Enable SmartDMA receive task - */ - DMA_TASK_ENABLE (FEC_RECV_TASK_NO); - -#ifdef DEBUG - printf ("mpc8220_fec_init... Done \n"); -#endif - - return 1; -} - -/********************************************************************/ -static void mpc8220_fec_halt (struct eth_device *dev) -{ - mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; - int counter = 0xffff; - -#ifdef DEBUG - if (fec->xcv_type != SEVENWIRE) - mpc8220_fec_phydump (dev->name); -#endif - - /* - * mask FEC chip interrupts - */ - fec->eth->imask = 0; - - /* - * issue graceful stop command to the FEC transmitter if necessary - */ - fec->eth->x_cntrl |= 0x00000001; - - /* - * wait for graceful stop to register - */ - while ((counter--) && (!(fec->eth->ievent & 0x10000000))); - - /* - * Disable SmartDMA tasks - */ - DMA_TASK_DISABLE (FEC_XMIT_TASK_NO); - DMA_TASK_DISABLE (FEC_RECV_TASK_NO); - - /* - * Disable the Ethernet Controller - */ - fec->eth->ecntrl &= 0xfffffffd; - - /* - * Clear FIFO status registers - */ - fec->eth->rfifo_status &= 0x00700000; - fec->eth->tfifo_status &= 0x00700000; - - fec->eth->reset_cntrl = 0x01000000; - - /* - * Issue a reset command to the FEC chip - */ - fec->eth->ecntrl |= 0x1; - - /* - * wait at least 16 clock cycles - */ - udelay (10); - -#ifdef DEBUG - printf ("Ethernet task stopped\n"); -#endif -} - -#ifdef DEBUG -/********************************************************************/ - -static void tfifo_print (char *devname, mpc8220_fec_priv * fec) -{ - u16 phyAddr = CONFIG_PHY_ADDR; - u16 phyStatus; - - if ((fec->eth->tfifo_lrf_ptr != fec->eth->tfifo_lwf_ptr) - || (fec->eth->tfifo_rdptr != fec->eth->tfifo_wrptr)) { - - miiphy_read (devname, phyAddr, 0x1, &phyStatus); - printf ("\nphyStatus: 0x%04x\n", phyStatus); - printf ("ecntrl: 0x%08x\n", fec->eth->ecntrl); - printf ("ievent: 0x%08x\n", fec->eth->ievent); - printf ("x_status: 0x%08x\n", fec->eth->x_status); - printf ("tfifo: status 0x%08x\n", fec->eth->tfifo_status); - - printf (" control 0x%08x\n", fec->eth->tfifo_cntrl); - printf (" lrfp 0x%08x\n", fec->eth->tfifo_lrf_ptr); - printf (" lwfp 0x%08x\n", fec->eth->tfifo_lwf_ptr); - printf (" alarm 0x%08x\n", fec->eth->tfifo_alarm); - printf (" readptr 0x%08x\n", fec->eth->tfifo_rdptr); - printf (" writptr 0x%08x\n", fec->eth->tfifo_wrptr); - } -} - -static void rfifo_print (char *devname, mpc8220_fec_priv * fec) -{ - u16 phyAddr = CONFIG_PHY_ADDR; - u16 phyStatus; - - if ((fec->eth->rfifo_lrf_ptr != fec->eth->rfifo_lwf_ptr) - || (fec->eth->rfifo_rdptr != fec->eth->rfifo_wrptr)) { - - miiphy_read (devname, phyAddr, 0x1, &phyStatus); - printf ("\nphyStatus: 0x%04x\n", phyStatus); - printf ("ecntrl: 0x%08x\n", fec->eth->ecntrl); - printf ("ievent: 0x%08x\n", fec->eth->ievent); - printf ("x_status: 0x%08x\n", fec->eth->x_status); - printf ("rfifo: status 0x%08x\n", fec->eth->rfifo_status); - - printf (" control 0x%08x\n", fec->eth->rfifo_cntrl); - printf (" lrfp 0x%08x\n", fec->eth->rfifo_lrf_ptr); - printf (" lwfp 0x%08x\n", fec->eth->rfifo_lwf_ptr); - printf (" alarm 0x%08x\n", fec->eth->rfifo_alarm); - printf (" readptr 0x%08x\n", fec->eth->rfifo_rdptr); - printf (" writptr 0x%08x\n", fec->eth->rfifo_wrptr); - } -} -#endif /* DEBUG */ - -/********************************************************************/ - -static int mpc8220_fec_send(struct eth_device *dev, void *eth_data, - int data_length) -{ - /* - * This routine transmits one frame. This routine only accepts - * 6-byte Ethernet addresses. - */ - mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; - FEC_TBD *pTbd; - -#ifdef DEBUG - printf ("tbd status: 0x%04x\n", fec->tbdBase[0].status); - tfifo_print (dev->name, fec); -#endif - - /* - * Clear Tx BD ring at first - */ - mpc8220_fec_tbd_scrub (fec); - - /* - * Check for valid length of data. - */ - if ((data_length > 1500) || (data_length <= 0)) { - return -1; - } - - /* - * Check the number of vacant TxBDs. - */ - if (fec->cleanTbdNum < 1) { -#ifdef DEBUG - printf ("No available TxBDs ...\n"); -#endif - return -1; - } - - /* - * Get the first TxBD to send the mac header - */ - pTbd = &fec->tbdBase[fec->tbdIndex]; - pTbd->dataLength = data_length; - pTbd->dataPointer = (u32) eth_data; - pTbd->status |= FEC_TBD_LAST | FEC_TBD_TC | FEC_TBD_READY; - fec->tbdIndex = (fec->tbdIndex + 1) % FEC_TBD_NUM; - -#ifdef DEBUG - printf ("DMA_TASK_ENABLE, fec->tbdIndex = %d \n", fec->tbdIndex); -#endif - - /* - * Kick the MII i/f - */ - if (fec->xcv_type != SEVENWIRE) { - u16 phyStatus; - - miiphy_read (dev->name, 0, 0x1, &phyStatus); - } - - /* - * Enable SmartDMA transmit task - */ - -#ifdef DEBUG - tfifo_print (dev->name, fec); -#endif - - DMA_TASK_ENABLE (FEC_XMIT_TASK_NO); - -#ifdef DEBUG - tfifo_print (dev->name, fec); -#endif - -#ifdef DEBUG - printf ("+"); -#endif - - fec->cleanTbdNum -= 1; - -#ifdef DEBUG - printf ("smartDMA ethernet Tx task enabled\n"); -#endif - /* - * wait until frame is sent . - */ - while (pTbd->status & FEC_TBD_READY) { - udelay (10); -#ifdef DEBUG - printf ("TDB status = %04x\n", pTbd->status); -#endif - } - - return 0; -} - - -/********************************************************************/ -static int mpc8220_fec_recv (struct eth_device *dev) -{ - /* - * This command pulls one frame from the card - */ - mpc8220_fec_priv *fec = (mpc8220_fec_priv *) dev->priv; - FEC_RBD *pRbd = &fec->rbdBase[fec->rbdIndex]; - unsigned long ievent; - int frame_length, len = 0; - NBUF *frame; - -#ifdef DEBUG - printf ("mpc8220_fec_recv %d Start...\n", fec->rbdIndex); - printf ("-"); -#endif - - /* - * Check if any critical events have happened - */ - ievent = fec->eth->ievent; - fec->eth->ievent = ievent; - if (ievent & 0x20060000) { - /* BABT, Rx/Tx FIFO errors */ - mpc8220_fec_halt (dev); - mpc8220_fec_init (dev, NULL); - return 0; - } - if (ievent & 0x80000000) { - /* Heartbeat error */ - fec->eth->x_cntrl |= 0x00000001; - } - if (ievent & 0x10000000) { - /* Graceful stop complete */ - if (fec->eth->x_cntrl & 0x00000001) { - mpc8220_fec_halt (dev); - fec->eth->x_cntrl &= ~0x00000001; - mpc8220_fec_init (dev, NULL); - } - } - - if (!(pRbd->status & FEC_RBD_EMPTY)) { - if ((pRbd->status & FEC_RBD_LAST) - && !(pRbd->status & FEC_RBD_ERR) - && ((pRbd->dataLength - 4) > 14)) { - - /* - * Get buffer address and size - */ - frame = (NBUF *) pRbd->dataPointer; - frame_length = pRbd->dataLength - 4; - - /* DEBUG code */ - if (_DEBUG) { - int i; - - printf ("recv data hdr:"); - for (i = 0; i < 14; i++) - printf ("%x ", *(frame->head + i)); - printf ("\n"); - } - - /* - * Fill the buffer and pass it to upper layers - */ -/* memcpy(buff, frame->head, 14); - memcpy(buff + 14, frame->data, frame_length);*/ - NetReceive((uchar *)pRbd->dataPointer, frame_length); - len = frame_length; - } - /* - * Reset buffer descriptor as empty - */ - mpc8220_fec_rbd_clean (fec, pRbd); - } - DMA_CLEAR_IEVENT (FEC_RECV_TASK_NO); - return len; -} - - -/********************************************************************/ -int mpc8220_fec_initialize (bd_t * bis) -{ - mpc8220_fec_priv *fec; - -#ifdef CONFIG_HAS_ETH1 - mpc8220_fec_priv *fec2; -#endif - struct eth_device *dev; - char *tmp, *end; - char env_enetaddr[6]; - -#ifdef CONFIG_HAS_ETH1 - char env_enet1addr[6]; -#endif - int i; - - fec = (mpc8220_fec_priv *) malloc (sizeof (*fec)); - dev = (struct eth_device *) malloc (sizeof (*dev)); - memset (dev, 0, sizeof *dev); - - fec->eth = (ethernet_regs *) MMAP_FEC1; -#ifdef CONFIG_HAS_ETH1 - fec2 = (mpc8220_fec_priv *) malloc (sizeof (*fec)); - fec2->eth = (ethernet_regs *) MMAP_FEC2; -#endif - fec->tbdBase = (FEC_TBD *) FEC_BD_BASE; - fec->rbdBase = - (FEC_RBD *) (FEC_BD_BASE + FEC_TBD_NUM * sizeof (FEC_TBD)); - fec->xcv_type = MII100; - - dev->priv = (void *) fec; - dev->iobase = MMAP_FEC1; - dev->init = mpc8220_fec_init; - dev->halt = mpc8220_fec_halt; - dev->send = mpc8220_fec_send; - dev->recv = mpc8220_fec_recv; - - sprintf (dev->name, "FEC"); - eth_register (dev); - -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) - miiphy_register (dev->name, - fec8220_miiphy_read, fec8220_miiphy_write); -#endif - - /* - * Try to set the mac address now. The fec mac address is - * a garbage after reset. When not using fec for booting - * the Linux fec driver will try to work with this garbage. - */ - tmp = getenv ("ethaddr"); - if (tmp) { - for (i = 0; i < 6; i++) { - env_enetaddr[i] = - tmp ? simple_strtoul (tmp, &end, 16) : 0; - if (tmp) - tmp = (*end) ? end + 1 : end; - } - mpc8220_fec_set_hwaddr (fec, env_enetaddr); - } -#ifdef CONFIG_HAS_ETH1 - tmp = getenv ("eth1addr"); - if (tmp) { - for (i = 0; i < 6; i++) { - env_enet1addr[i] = - tmp ? simple_strtoul (tmp, &end, 16) : 0; - if (tmp) - tmp = (*end) ? end + 1 : end; - } - mpc8220_fec_set_hwaddr (fec2, env_enet1addr); - } -#endif - - return 1; -} - -/* MII-interface related functions */ -/********************************************************************/ -int fec8220_miiphy_read (const char *devname, u8 phyAddr, u8 regAddr, u16 *retVal) -{ - ethernet_regs *eth = (ethernet_regs *) MMAP_FEC1; - u32 reg; /* convenient holder for the PHY register */ - u32 phy; /* convenient holder for the PHY */ - int timeout = 0xffff; - - /* - * reading from any PHY's register is done by properly - * programming the FEC's MII data register. - */ - reg = regAddr << FEC_MII_DATA_RA_SHIFT; - phy = phyAddr << FEC_MII_DATA_PA_SHIFT; - - eth->mii_data = - (FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA | phy - | reg); - - /* - * wait for the related interrupt - */ - while ((timeout--) && (!(eth->ievent & 0x00800000))); - - if (timeout == 0) { -#ifdef DEBUG - printf ("Read MDIO failed...\n"); -#endif - return -1; - } - - /* - * clear mii interrupt bit - */ - eth->ievent = 0x00800000; - - /* - * it's now safe to read the PHY's register - */ - *retVal = (u16) eth->mii_data; - - return 0; -} - -/********************************************************************/ -int fec8220_miiphy_write(const char *devname, u8 phyAddr, u8 regAddr, u16 data) -{ - ethernet_regs *eth = (ethernet_regs *) MMAP_FEC1; - u32 reg; /* convenient holder for the PHY register */ - u32 phy; /* convenient holder for the PHY */ - int timeout = 0xffff; - - reg = regAddr << FEC_MII_DATA_RA_SHIFT; - phy = phyAddr << FEC_MII_DATA_PA_SHIFT; - - eth->mii_data = (FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR | - FEC_MII_DATA_TA | phy | reg | data); - - /* - * wait for the MII interrupt - */ - while ((timeout--) && (!(eth->ievent & 0x00800000))); - - if (timeout == 0) { -#ifdef DEBUG - printf ("Write MDIO failed...\n"); -#endif - return -1; - } - - /* - * clear MII interrupt bit - */ - eth->ievent = 0x00800000; - - return 0; -} - -#endif /* CONFIG_MPC8220_FEC */ diff --git a/arch/powerpc/cpu/mpc8220/fec.h b/arch/powerpc/cpu/mpc8220/fec.h deleted file mode 100644 index a8927fcdb..000000000 --- a/arch/powerpc/cpu/mpc8220/fec.h +++ /dev/null @@ -1,283 +0,0 @@ -/* - * (C) Copyright 2003-2004 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * This file is based on mpc4200fec.h - * (C) Copyright Motorola, Inc., 2000 - * - * odin ethernet header file - */ - -#ifndef __MPC8220_FEC_H -#define __MPC8220_FEC_H - -#include <common.h> -#include <mpc8220.h> -#include "dma.h" - -typedef struct ethernet_register_set { - -/* [10:2]addr = 00 */ - -/* Control and status Registers (offset 000-1FF) */ - - volatile u32 fec_id; /* MBAR_ETH + 0x000 */ - volatile u32 ievent; /* MBAR_ETH + 0x004 */ - volatile u32 imask; /* MBAR_ETH + 0x008 */ - - volatile u32 RES0[1]; /* MBAR_ETH + 0x00C */ - volatile u32 r_des_active; /* MBAR_ETH + 0x010 */ - volatile u32 x_des_active; /* MBAR_ETH + 0x014 */ - volatile u32 r_des_active_cl; /* MBAR_ETH + 0x018 */ - volatile u32 x_des_active_cl; /* MBAR_ETH + 0x01C */ - volatile u32 ivent_set; /* MBAR_ETH + 0x020 */ - volatile u32 ecntrl; /* MBAR_ETH + 0x024 */ - - volatile u32 RES1[6]; /* MBAR_ETH + 0x028-03C */ - volatile u32 mii_data; /* MBAR_ETH + 0x040 */ - volatile u32 mii_speed; /* MBAR_ETH + 0x044 */ - volatile u32 mii_status; /* MBAR_ETH + 0x048 */ - - volatile u32 RES2[5]; /* MBAR_ETH + 0x04C-05C */ - volatile u32 mib_data; /* MBAR_ETH + 0x060 */ - volatile u32 mib_control; /* MBAR_ETH + 0x064 */ - - volatile u32 RES3[6]; /* MBAR_ETH + 0x068-7C */ - volatile u32 r_activate; /* MBAR_ETH + 0x080 */ - volatile u32 r_cntrl; /* MBAR_ETH + 0x084 */ - volatile u32 r_hash; /* MBAR_ETH + 0x088 */ - volatile u32 r_data; /* MBAR_ETH + 0x08C */ - volatile u32 ar_done; /* MBAR_ETH + 0x090 */ - volatile u32 r_test; /* MBAR_ETH + 0x094 */ - volatile u32 r_mib; /* MBAR_ETH + 0x098 */ - volatile u32 r_da_low; /* MBAR_ETH + 0x09C */ - volatile u32 r_da_high; /* MBAR_ETH + 0x0A0 */ - - volatile u32 RES4[7]; /* MBAR_ETH + 0x0A4-0BC */ - volatile u32 x_activate; /* MBAR_ETH + 0x0C0 */ - volatile u32 x_cntrl; /* MBAR_ETH + 0x0C4 */ - volatile u32 backoff; /* MBAR_ETH + 0x0C8 */ - volatile u32 x_data; /* MBAR_ETH + 0x0CC */ - volatile u32 x_status; /* MBAR_ETH + 0x0D0 */ - volatile u32 x_mib; /* MBAR_ETH + 0x0D4 */ - volatile u32 x_test; /* MBAR_ETH + 0x0D8 */ - volatile u32 fdxfc_da1; /* MBAR_ETH + 0x0DC */ - volatile u32 fdxfc_da2; /* MBAR_ETH + 0x0E0 */ - volatile u32 paddr1; /* MBAR_ETH + 0x0E4 */ - volatile u32 paddr2; /* MBAR_ETH + 0x0E8 */ - volatile u32 op_pause; /* MBAR_ETH + 0x0EC */ - - volatile u32 RES5[4]; /* MBAR_ETH + 0x0F0-0FC */ - volatile u32 instr_reg; /* MBAR_ETH + 0x100 */ - volatile u32 context_reg; /* MBAR_ETH + 0x104 */ - volatile u32 test_cntrl; /* MBAR_ETH + 0x108 */ - volatile u32 acc_reg; /* MBAR_ETH + 0x10C */ - volatile u32 ones; /* MBAR_ETH + 0x110 */ - volatile u32 zeros; /* MBAR_ETH + 0x114 */ - volatile u32 iaddr1; /* MBAR_ETH + 0x118 */ - volatile u32 iaddr2; /* MBAR_ETH + 0x11C */ - volatile u32 gaddr1; /* MBAR_ETH + 0x120 */ - volatile u32 gaddr2; /* MBAR_ETH + 0x124 */ - volatile u32 random; /* MBAR_ETH + 0x128 */ - volatile u32 rand1; /* MBAR_ETH + 0x12C */ - volatile u32 tmp; /* MBAR_ETH + 0x130 */ - - volatile u32 RES6[3]; /* MBAR_ETH + 0x134-13C */ - volatile u32 fifo_id; /* MBAR_ETH + 0x140 */ - volatile u32 x_wmrk; /* MBAR_ETH + 0x144 */ - volatile u32 fcntrl; /* MBAR_ETH + 0x148 */ - volatile u32 r_bound; /* MBAR_ETH + 0x14C */ - volatile u32 r_fstart; /* MBAR_ETH + 0x150 */ - volatile u32 r_count; /* MBAR_ETH + 0x154 */ - volatile u32 r_lag; /* MBAR_ETH + 0x158 */ - volatile u32 r_read; /* MBAR_ETH + 0x15C */ - volatile u32 r_write; /* MBAR_ETH + 0x160 */ - volatile u32 x_count; /* MBAR_ETH + 0x164 */ - volatile u32 x_lag; /* MBAR_ETH + 0x168 */ - volatile u32 x_retry; /* MBAR_ETH + 0x16C */ - volatile u32 x_write; /* MBAR_ETH + 0x170 */ - volatile u32 x_read; /* MBAR_ETH + 0x174 */ - - volatile u32 RES7[2]; /* MBAR_ETH + 0x178-17C */ - volatile u32 fm_cntrl; /* MBAR_ETH + 0x180 */ - volatile u32 rfifo_data; /* MBAR_ETH + 0x184 */ - volatile u32 rfifo_status; /* MBAR_ETH + 0x188 */ - volatile u32 rfifo_cntrl; /* MBAR_ETH + 0x18C */ - volatile u32 rfifo_lrf_ptr; /* MBAR_ETH + 0x190 */ - volatile u32 rfifo_lwf_ptr; /* MBAR_ETH + 0x194 */ - volatile u32 rfifo_alarm; /* MBAR_ETH + 0x198 */ - volatile u32 rfifo_rdptr; /* MBAR_ETH + 0x19C */ - volatile u32 rfifo_wrptr; /* MBAR_ETH + 0x1A0 */ - volatile u32 tfifo_data; /* MBAR_ETH + 0x1A4 */ - volatile u32 tfifo_status; /* MBAR_ETH + 0x1A8 */ - volatile u32 tfifo_cntrl; /* MBAR_ETH + 0x1AC */ - volatile u32 tfifo_lrf_ptr; /* MBAR_ETH + 0x1B0 */ - volatile u32 tfifo_lwf_ptr; /* MBAR_ETH + 0x1B4 */ - volatile u32 tfifo_alarm; /* MBAR_ETH + 0x1B8 */ - volatile u32 tfifo_rdptr; /* MBAR_ETH + 0x1BC */ - volatile u32 tfifo_wrptr; /* MBAR_ETH + 0x1C0 */ - - volatile u32 reset_cntrl; /* MBAR_ETH + 0x1C4 */ - volatile u32 xmit_fsm; /* MBAR_ETH + 0x1C8 */ - - volatile u32 RES8[3]; /* MBAR_ETH + 0x1CC-1D4 */ - volatile u32 rdes_data0; /* MBAR_ETH + 0x1D8 */ - volatile u32 rdes_data1; /* MBAR_ETH + 0x1DC */ - volatile u32 r_length; /* MBAR_ETH + 0x1E0 */ - volatile u32 x_length; /* MBAR_ETH + 0x1E4 */ - volatile u32 x_addr; /* MBAR_ETH + 0x1E8 */ - volatile u32 cdes_data; /* MBAR_ETH + 0x1EC */ - volatile u32 status; /* MBAR_ETH + 0x1F0 */ - volatile u32 dma_control; /* MBAR_ETH + 0x1F4 */ - volatile u32 des_cmnd; /* MBAR_ETH + 0x1F8 */ - volatile u32 data; /* MBAR_ETH + 0x1FC */ - - /* MIB COUNTERS (Offset 200-2FF) */ - - volatile u32 rmon_t_drop; /* MBAR_ETH + 0x200 */ - volatile u32 rmon_t_packets; /* MBAR_ETH + 0x204 */ - volatile u32 rmon_t_bc_pkt; /* MBAR_ETH + 0x208 */ - volatile u32 rmon_t_mc_pkt; /* MBAR_ETH + 0x20C */ - volatile u32 rmon_t_crc_align; /* MBAR_ETH + 0x210 */ - volatile u32 rmon_t_undersize; /* MBAR_ETH + 0x214 */ - volatile u32 rmon_t_oversize; /* MBAR_ETH + 0x218 */ - volatile u32 rmon_t_frag; /* MBAR_ETH + 0x21C */ - volatile u32 rmon_t_jab; /* MBAR_ETH + 0x220 */ - volatile u32 rmon_t_col; /* MBAR_ETH + 0x224 */ - volatile u32 rmon_t_p64; /* MBAR_ETH + 0x228 */ - volatile u32 rmon_t_p65to127; /* MBAR_ETH + 0x22C */ - volatile u32 rmon_t_p128to255; /* MBAR_ETH + 0x230 */ - volatile u32 rmon_t_p256to511; /* MBAR_ETH + 0x234 */ - volatile u32 rmon_t_p512to1023; /* MBAR_ETH + 0x238 */ - volatile u32 rmon_t_p1024to2047;/* MBAR_ETH + 0x23C */ - volatile u32 rmon_t_p_gte2048; /* MBAR_ETH + 0x240 */ - volatile u32 rmon_t_octets; /* MBAR_ETH + 0x244 */ - volatile u32 ieee_t_drop; /* MBAR_ETH + 0x248 */ - volatile u32 ieee_t_frame_ok; /* MBAR_ETH + 0x24C */ - volatile u32 ieee_t_1col; /* MBAR_ETH + 0x250 */ - volatile u32 ieee_t_mcol; /* MBAR_ETH + 0x254 */ - volatile u32 ieee_t_def; /* MBAR_ETH + 0x258 */ - volatile u32 ieee_t_lcol; /* MBAR_ETH + 0x25C */ - volatile u32 ieee_t_excol; /* MBAR_ETH + 0x260 */ - volatile u32 ieee_t_macerr; /* MBAR_ETH + 0x264 */ - volatile u32 ieee_t_cserr; /* MBAR_ETH + 0x268 */ - volatile u32 ieee_t_sqe; /* MBAR_ETH + 0x26C */ - volatile u32 t_fdxfc; /* MBAR_ETH + 0x270 */ - volatile u32 ieee_t_octets_ok; /* MBAR_ETH + 0x274 */ - - volatile u32 RES9[2]; /* MBAR_ETH + 0x278-27C */ - volatile u32 rmon_r_drop; /* MBAR_ETH + 0x280 */ - volatile u32 rmon_r_packets; /* MBAR_ETH + 0x284 */ - volatile u32 rmon_r_bc_pkt; /* MBAR_ETH + 0x288 */ - volatile u32 rmon_r_mc_pkt; /* MBAR_ETH + 0x28C */ - volatile u32 rmon_r_crc_align; /* MBAR_ETH + 0x290 */ - volatile u32 rmon_r_undersize; /* MBAR_ETH + 0x294 */ - volatile u32 rmon_r_oversize; /* MBAR_ETH + 0x298 */ - volatile u32 rmon_r_frag; /* MBAR_ETH + 0x29C */ - volatile u32 rmon_r_jab; /* MBAR_ETH + 0x2A0 */ - - volatile u32 rmon_r_resvd_0; /* MBAR_ETH + 0x2A4 */ - - volatile u32 rmon_r_p64; /* MBAR_ETH + 0x2A8 */ - volatile u32 rmon_r_p65to127; /* MBAR_ETH + 0x2AC */ - volatile u32 rmon_r_p128to255; /* MBAR_ETH + 0x2B0 */ - volatile u32 rmon_r_p256to511; /* MBAR_ETH + 0x2B4 */ - volatile u32 rmon_r_p512to1023; /* MBAR_ETH + 0x2B8 */ - volatile u32 rmon_r_p1024to2047;/* MBAR_ETH + 0x2BC */ - volatile u32 rmon_r_p_gte2048; /* MBAR_ETH + 0x2C0 */ - volatile u32 rmon_r_octets; /* MBAR_ETH + 0x2C4 */ - volatile u32 ieee_r_drop; /* MBAR_ETH + 0x2C8 */ - volatile u32 ieee_r_frame_ok; /* MBAR_ETH + 0x2CC */ - volatile u32 ieee_r_crc; /* MBAR_ETH + 0x2D0 */ - volatile u32 ieee_r_align; /* MBAR_ETH + 0x2D4 */ - volatile u32 r_macerr; /* MBAR_ETH + 0x2D8 */ - volatile u32 r_fdxfc; /* MBAR_ETH + 0x2DC */ - volatile u32 ieee_r_octets_ok; /* MBAR_ETH + 0x2E0 */ - - volatile u32 RES10[6]; /* MBAR_ETH + 0x2E4-2FC */ - - volatile u32 RES11[64]; /* MBAR_ETH + 0x300-3FF */ -} ethernet_regs; - -/* Receive & Transmit Buffer Descriptor definitions */ -typedef struct BufferDescriptor { - u16 status; - u16 dataLength; - u32 dataPointer; -} FEC_RBD; - -typedef struct { - u16 status; - u16 dataLength; - u32 dataPointer; -} FEC_TBD; - -/* private structure */ -typedef enum { - SEVENWIRE, /* 7-wire */ - MII10, /* MII 10Mbps */ - MII100 /* MII 100Mbps */ -} xceiver_type; - -typedef struct { - ethernet_regs *eth; - xceiver_type xcv_type; /* transceiver type */ - FEC_RBD *rbdBase; /* RBD ring */ - FEC_TBD *tbdBase; /* TBD ring */ - u16 rbdIndex; /* next receive BD to read */ - u16 tbdIndex; /* next transmit BD to send */ - u16 usedTbdIndex; /* next transmit BD to clean */ - u16 cleanTbdNum; /* the number of available transmit BDs */ -} mpc8220_fec_priv; - -/* Ethernet parameter area */ -#define FEC_TBD_BASE (FEC_PARAM_BASE + 0x00) -#define FEC_TBD_NEXT (FEC_PARAM_BASE + 0x04) -#define FEC_RBD_BASE (FEC_PARAM_BASE + 0x08) -#define FEC_RBD_NEXT (FEC_PARAM_BASE + 0x0c) - -/* BD Numer definitions */ -#define FEC_TBD_NUM 48 /* The user can adjust this value */ -#define FEC_RBD_NUM 32 /* The user can adjust this value */ - -/* packet size limit */ -#define FEC_MAX_PKT_SIZE 1536 - -/* RBD bits definitions */ -#define FEC_RBD_EMPTY 0x8000 /* Buffer is empty */ -#define FEC_RBD_WRAP 0x2000 /* Last BD in ring */ -#define FEC_RBD_INT 0x1000 /* Interrupt */ -#define FEC_RBD_LAST 0x0800 /* Buffer is last in frame(useless) */ -#define FEC_RBD_MISS 0x0100 /* Miss bit for prom mode */ -#define FEC_RBD_BC 0x0080 /* The received frame is broadcast frame */ -#define FEC_RBD_MC 0x0040 /* The received frame is multicast frame */ -#define FEC_RBD_LG 0x0020 /* Frame length violation */ -#define FEC_RBD_NO 0x0010 /* Nonoctet align frame */ -#define FEC_RBD_SH 0x0008 /* Short frame */ -#define FEC_RBD_CR 0x0004 /* CRC error */ -#define FEC_RBD_OV 0x0002 /* Receive FIFO overrun */ -#define FEC_RBD_TR 0x0001 /* Frame is truncated */ -#define FEC_RBD_ERR (FEC_RBD_LG | FEC_RBD_NO | FEC_RBD_CR | \ - FEC_RBD_OV | FEC_RBD_TR) - -/* TBD bits definitions */ -#define FEC_TBD_READY 0x8000 /* Buffer is ready */ -#define FEC_TBD_WRAP 0x2000 /* Last BD in ring */ -#define FEC_TBD_INT 0x1000 /* Interrupt */ -#define FEC_TBD_LAST 0x0800 /* Buffer is last in frame */ -#define FEC_TBD_TC 0x0400 /* Transmit the CRC */ -#define FEC_TBD_ABC 0x0200 /* Append bad CRC */ - -/* MII-related definitios */ -#define FEC_MII_DATA_ST 0x40000000 /* Start of frame delimiter */ -#define FEC_MII_DATA_OP_RD 0x20000000 /* Perform a read operation */ -#define FEC_MII_DATA_OP_WR 0x10000000 /* Perform a write operation */ -#define FEC_MII_DATA_PA_MSK 0x0f800000 /* PHY Address field mask */ -#define FEC_MII_DATA_RA_MSK 0x007c0000 /* PHY Register field mask */ -#define FEC_MII_DATA_TA 0x00020000 /* Turnaround */ -#define FEC_MII_DATA_DATAMSK 0x0000ffff /* PHY data field */ - -#define FEC_MII_DATA_RA_SHIFT 18 /* MII Register address bits */ -#define FEC_MII_DATA_PA_SHIFT 23 /* MII PHY address bits */ - -#endif /* __MPC8220_FEC_H */ diff --git a/arch/powerpc/cpu/mpc8220/fec_dma_tasks.S b/arch/powerpc/cpu/mpc8220/fec_dma_tasks.S deleted file mode 100644 index 3f8a03bf1..000000000 --- a/arch/powerpc/cpu/mpc8220/fec_dma_tasks.S +++ /dev/null @@ -1,363 +0,0 @@ -/* - * Copyright (C) 2004, Freescale Semiconductor, Inc. - * - * This file contains microcode for the FEC controller of the MPC8220. - */ - -#include <config.h> - -#if defined(CONFIG_MPC8220) - -/* sas/sccg, gas target */ -.section smartdmaInitData,"aw",@progbits /* Initialized data for task variables */ -.section smartdmaTaskTable,"aw",@progbits /* Task tables */ -.align 9 -.globl taskTable -taskTable: -.globl scEthernetRecv_Entry -scEthernetRecv_Entry: /* Task 0 */ -.long scEthernetRecv_TDT - taskTable /* Task 0 Descriptor Table */ -.long scEthernetRecv_TDT - taskTable + 0x00000094 -.long scEthernetRecv_VarTab - taskTable /* Task 0 Variable Table */ -.long scEthernetRecv_FDT - taskTable + 0x03 /* Task 0 Function Descriptor Table & Flags */ -.long 0x00000000 -.long 0x00000000 -.long scEthernetRecv_CSave - taskTable /* Task 0 context save space */ -.long 0xf0000000 -.globl scEthernetXmit_Entry -scEthernetXmit_Entry: /* Task 1 */ -.long scEthernetXmit_TDT - taskTable /* Task 1 Descriptor Table */ -.long scEthernetXmit_TDT - taskTable + 0x000000e0 -.long scEthernetXmit_VarTab - taskTable /* Task 1 Variable Table */ -.long scEthernetXmit_FDT - taskTable + 0x03 /* Task 1 Function Descriptor Table & Flags */ -.long 0x00000000 -.long 0x00000000 -.long scEthernetXmit_CSave - taskTable /* Task 1 context save space */ -.long 0xf0000000 - - -.globl scEthernetRecv_TDT -scEthernetRecv_TDT: /* Task 0 Descriptor Table */ -.long 0xc4c50000 /* 0000(153): LCDEXT: idx0 = var9 + var10; idx0 once var0; idx0 += inc0 */ -.long 0x84c5e000 /* 0004(153): LCD: idx1 = var9 + var11; ; idx1 += inc0 */ -.long 0x10001f08 /* 0008(156): DRD1A: var7 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x10000380 /* 000C(157): DRD1A: var0 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x00000f88 /* 0010(158): DRD1A: var3 = *idx1; FN=0 init=0 WS=0 RS=0 */ -.long 0x81980000 /* 0014(162): LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */ -.long 0x10000780 /* 0018(164): DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x60000000 /* 001C(165): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ -.long 0x010cf04c /* 0020(165): DRD2B1: var4 = EU3(); EU3(var1,var12) */ -.long 0x82180349 /* 0024(169): LCD: idx0 = var4; idx0 != var13; idx0 += inc1 */ -.long 0x81c68004 /* 0028(172): LCD: idx1 = var3 + var13 + 4; idx1 once var0; idx1 += inc0 */ -.long 0x70000000 /* 002C(174): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ -.long 0x018cf04e /* 0030(174): DRD2B1: var6 = EU3(); EU3(var1,var14) */ -.long 0x70000000 /* 0034(175): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ -.long 0x020cf04f /* 0038(175): DRD2B1: var8 = EU3(); EU3(var1,var15) */ -.long 0x00000b88 /* 003C(176): DRD1A: var2 = *idx1; FN=0 init=0 WS=0 RS=0 */ -.long 0x80025184 /* 0040(205): LCDEXT: idx1 = 0xf0009184; ; */ -.long 0x86810412 /* 0044(205): LCD: idx2 = var13, idx3 = var2; idx2 < var16; idx2 += inc2, idx3 += inc2 */ -.long 0x0200cf88 /* 0048(209): DRD1A: *idx3 = *idx1; FN=0 init=16 WS=0 RS=0 */ -.long 0x80025184 /* 004C(217): LCDEXT: idx1 = 0xf0009184; ; */ -.long 0x8681845b /* 0050(217): LCD: idx2 = var13, idx3 = var3; idx2 < var17; idx2 += inc3, idx3 += inc3 */ -.long 0x0000cf88 /* 0054(221): DRD1A: *idx3 = *idx1; FN=0 init=0 WS=0 RS=0 */ -.long 0xc31883a4 /* 0058(225): LCDEXT: idx1 = var6; idx1 == var14; idx1 += inc4 */ -.long 0x80190000 /* 005C(225): LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */ -.long 0x04008468 /* 0060(227): DRD1A: idx1 = var13; FN=0 INT init=0 WS=0 RS=0 */ -.long 0xc4038360 /* 0064(232): LCDEXT: idx1 = var8, idx2 = var7; idx1 == var13; idx1 += inc4, idx2 += inc0 */ -.long 0x81c50000 /* 0068(233): LCD: idx3 = var3 + var10; idx3 once var0; idx3 += inc0 */ -.long 0x1000cb18 /* 006C(235): DRD1A: *idx2 = idx3; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x00000f18 /* 0070(236): DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */ -.long 0xc418836d /* 0074(238): LCDEXT: idx1 = var8; idx1 > var13; idx1 += inc5 */ -.long 0x83990000 /* 0078(238): LCD: idx2 = var7; idx2 once var0; idx2 += inc0 */ -.long 0x10000c00 /* 007C(240): DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x0000c800 /* 0080(241): DRD1A: *idx2 = var0; FN=0 init=0 WS=0 RS=0 */ -.long 0x81988000 /* 0084(245): LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ -.long 0x10000788 /* 0088(247): DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x60000000 /* 008C(248): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ -.long 0x080cf04c /* 0090(248): DRD2B1: idx0 = EU3(); EU3(var1,var12) */ -.long 0x000001f8 /* 0094(:0): NOP */ - - -.globl scEthernetXmit_TDT -scEthernetXmit_TDT: /* Task 1 Descriptor Table */ -.long 0x80095b00 /* 0000(280): LCDEXT: idx0 = 0xf0025b00; ; */ -.long 0x85c60004 /* 0004(280): LCD: idx1 = var11 + var12 + 4; idx1 once var0; idx1 += inc0 */ -.long 0x10002308 /* 0008(283): DRD1A: var8 = idx1; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x10000f88 /* 000C(284): DRD1A: var3 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x00000380 /* 0010(285): DRD1A: var0 = *idx0; FN=0 init=0 WS=0 RS=0 */ -.long 0x81980000 /* 0014(288): LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */ -.long 0x10000780 /* 0018(290): DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x60000000 /* 001C(291): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ -.long 0x024cf04d /* 0020(291): DRD2B1: var9 = EU3(); EU3(var1,var13) */ -.long 0x84980309 /* 0024(294): LCD: idx0 = var9; idx0 != var12; idx0 += inc1 */ -.long 0xc0004003 /* 0028(297): LCDEXT: idx1 = 0x00000003; ; */ -.long 0x81c60004 /* 002C(297): LCD: idx2 = var3 + var12 + 4; idx2 once var0; idx2 += inc0 */ -.long 0x70000000 /* 0030(299): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ -.long 0x010cf04e /* 0034(299): DRD2B1: var4 = EU3(); EU3(var1,var14) */ -.long 0x70000000 /* 0038(300): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ -.long 0x014cf04f /* 003C(300): DRD2B1: var5 = EU3(); EU3(var1,var15) */ -.long 0x70000000 /* 0040(301): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ -.long 0x028cf050 /* 0044(301): DRD2B1: var10 = EU3(); EU3(var1,var16) */ -.long 0x70000000 /* 0048(302): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */ -.long 0x018cf051 /* 004C(302): DRD2B1: var6 = EU3(); EU3(var1,var17) */ -.long 0x10000b90 /* 0050(303): DRD1A: var2 = *idx2; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x60000000 /* 0054(304): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ -.long 0x01ccf0a1 /* 0058(304): DRD2B1: var7 = EU3(); EU3(var2,idx1) */ -.long 0xc2988312 /* 005C(308): LCDEXT: idx1 = var5; idx1 > var12; idx1 += inc2 */ -.long 0x83490000 /* 0060(308): LCD: idx2 = var6 + var18; idx2 once var0; idx2 += inc0 */ -.long 0x00001b10 /* 0064(310): DRD1A: var6 = idx2; FN=0 init=0 WS=0 RS=0 */ -.long 0x800251a4 /* 0068(315): LCDEXT: idx1 = 0xf00091a4; ; */ -.long 0xc30104dc /* 006C(315): LCDEXT: idx2 = var6, idx3 = var2; idx2 >= var19; idx2 += inc3, idx3 += inc4 */ -.long 0x839a032d /* 0070(316): LCD: idx4 = var7; idx4 == var12; idx4 += inc5 */ -.long 0x0220c798 /* 0074(321): DRD1A: *idx1 = *idx3; FN=0 init=17 WS=0 RS=0 */ -.long 0x800251a4 /* 0078(329): LCDEXT: idx1 = 0xf00091a4; ; */ -.long 0x99198337 /* 007C(329): LCD: idx2 = idx2, idx3 = idx3; idx2 > var12; idx2 += inc6, idx3 += inc7 */ -.long 0x022ac798 /* 0080(333): DRD1A: *idx1 = *idx3; FN=0 init=17 WS=1 RS=1 */ -.long 0x800251a4 /* 0084(350): LCDEXT: idx1 = 0xf00091a4; ; */ -.long 0xc1430000 /* 0088(350): LCDEXT: idx2 = var2 + var6; idx2 once var0; idx2 += inc0 */ -.long 0x82998312 /* 008C(351): LCD: idx3 = var5; idx3 > var12; idx3 += inc2 */ -.long 0x0a2ac790 /* 0090(354): DRD1A: *idx1 = *idx2; FN=0 TFD init=17 WS=1 RS=1 */ -.long 0x81988000 /* 0094(359): LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ -.long 0x60000002 /* 0098(361): DRD2A: EU0=0 EU1=0 EU2=0 EU3=2 EXT init=0 WS=0 RS=0 */ -.long 0x0c4cfc4d /* 009C(361): DRD2B1: *idx1 = EU3(); EU3(*idx1,var13) */ -.long 0xc21883ad /* 00A0(365): LCDEXT: idx1 = var4; idx1 == var14; idx1 += inc5 */ -.long 0x80190000 /* 00A4(365): LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */ -.long 0x04008460 /* 00A8(367): DRD1A: idx1 = var12; FN=0 INT init=0 WS=0 RS=0 */ -.long 0xc4052305 /* 00AC(371): LCDEXT: idx1 = var8, idx2 = var10; idx2 == var12; idx1 += inc0, idx2 += inc5 */ -.long 0x81ca0000 /* 00B0(372): LCD: idx3 = var3 + var20; idx3 once var0; idx3 += inc0 */ -.long 0x1000c718 /* 00B4(374): DRD1A: *idx1 = idx3; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x00000f18 /* 00B8(375): DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */ -.long 0xc4188000 /* 00BC(378): LCDEXT: idx1 = var8; idx1 once var0; idx1 += inc0 */ -.long 0x85190312 /* 00C0(378): LCD: idx2 = var10; idx2 > var12; idx2 += inc2 */ -.long 0x10000c00 /* 00C4(380): DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x1000c400 /* 00C8(381): DRD1A: *idx1 = var0; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x00008860 /* 00CC(382): DRD1A: idx2 = var12; FN=0 init=0 WS=0 RS=0 */ -.long 0x81988000 /* 00D0(386): LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */ -.long 0x10000788 /* 00D4(388): DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */ -.long 0x60000000 /* 00D8(389): DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */ -.long 0x080cf04d /* 00DC(389): DRD2B1: idx0 = EU3(); EU3(var1,var13) */ -.long 0x000001f8 /* 00E0(:0): NOP */ - -.align 8 - -.globl scEthernetRecv_VarTab -scEthernetRecv_VarTab: /* Task 0 Variable Table */ -.long 0x00000000 /* var[0] */ -.long 0x00000000 /* var[1] */ -.long 0x00000000 /* var[2] */ -.long 0x00000000 /* var[3] */ -.long 0x00000000 /* var[4] */ -.long 0x00000000 /* var[5] */ -.long 0x00000000 /* var[6] */ -.long 0x00000000 /* var[7] */ -.long 0x00000000 /* var[8] */ -.long 0xf0025b00 /* var[9] */ -.long 0x00000008 /* var[10] */ -.long 0x0000000c /* var[11] */ -.long 0x80000000 /* var[12] */ -.long 0x00000000 /* var[13] */ -.long 0x10000000 /* var[14] */ -.long 0x20000000 /* var[15] */ -.long 0x00000800 /* var[16] */ -.long 0x00000001 /* var[17] */ -.long 0x00000000 /* var[18] */ -.long 0x00000000 /* var[19] */ -.long 0x00000000 /* var[20] */ -.long 0x00000000 /* var[21] */ -.long 0x00000000 /* var[22] */ -.long 0x00000000 /* var[23] */ -.long 0x00000000 /* inc[0] */ -.long 0x60000000 /* inc[1] */ -.long 0x20000004 /* inc[2] */ -.long 0x20000001 /* inc[3] */ -.long 0x80000000 /* inc[4] */ -.long 0x40000000 /* inc[5] */ -.long 0x00000000 /* inc[6] */ -.long 0x00000000 /* inc[7] */ - -.align 8 - -.globl scEthernetXmit_VarTab -scEthernetXmit_VarTab: /* Task 1 Variable Table */ -.long 0x00000000 /* var[0] */ -.long 0x00000000 /* var[1] */ -.long 0x00000000 /* var[2] */ -.long 0x00000000 /* var[3] */ -.long 0x00000000 /* var[4] */ -.long 0x00000000 /* var[5] */ -.long 0x00000000 /* var[6] */ -.long 0x00000000 /* var[7] */ -.long 0x00000000 /* var[8] */ -.long 0x00000000 /* var[9] */ -.long 0x00000000 /* var[10] */ -.long 0xf0025b00 /* var[11] */ -.long 0x00000000 /* var[12] */ -.long 0x80000000 /* var[13] */ -.long 0x10000000 /* var[14] */ -.long 0x08000000 /* var[15] */ -.long 0x20000000 /* var[16] */ -.long 0x0000ffff /* var[17] */ -.long 0xffffffff /* var[18] */ -.long 0x00000004 /* var[19] */ -.long 0x00000008 /* var[20] */ -.long 0x00000000 /* var[21] */ -.long 0x00000000 /* var[22] */ -.long 0x00000000 /* var[23] */ -.long 0x00000000 /* inc[0] */ -.long 0x60000000 /* inc[1] */ -.long 0x40000000 /* inc[2] */ -.long 0xc000fffc /* inc[3] */ -.long 0xe0000004 /* inc[4] */ -.long 0x80000000 /* inc[5] */ -.long 0x4000ffff /* inc[6] */ -.long 0xe0000001 /* inc[7] */ - -.align 8 - -.globl scEthernetRecv_FDT -scEthernetRecv_FDT: /* Task 0 Function Descriptor Table */ -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x21800000 /* and(), EU# 3 */ -.long 0x21e00000 /* or(), EU# 3 */ -.long 0x21400000 /* andn(), EU# 3 */ -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 - -.align 8 - -.globl scEthernetXmit_FDT -scEthernetXmit_FDT: /* Task 1 Function Descriptor Table */ -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x21800000 /* and(), EU# 3 */ -.long 0x21e00000 /* or(), EU# 3 */ -.long 0x21400000 /* andn(), EU# 3 */ -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 -.long 0x00000000 - - -.globl scEthernetRecv_CSave -scEthernetRecv_CSave: /* Task 0 context save space */ -.space 128, 0x0 - - -.globl scEthernetXmit_CSave -scEthernetXmit_CSave: /* Task 1 context save space */ -.space 128, 0x0 - -#endif diff --git a/arch/powerpc/cpu/mpc8220/i2c.c b/arch/powerpc/cpu/mpc8220/i2c.c deleted file mode 100644 index 2f35d20c8..000000000 --- a/arch/powerpc/cpu/mpc8220/i2c.c +++ /dev/null @@ -1,388 +0,0 @@ -/* - * (C) Copyright 2004, Freescale, Inc - * TsiChung Liew, Tsi-Chung.Liew@freescale.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> - -DECLARE_GLOBAL_DATA_PTR; - -#ifdef CONFIG_HARD_I2C - -#include <mpc8220.h> -#include <i2c.h> - -typedef struct mpc8220_i2c { - volatile u32 adr; /* I2Cn + 0x00 */ - volatile u32 fdr; /* I2Cn + 0x04 */ - volatile u32 cr; /* I2Cn + 0x08 */ - volatile u32 sr; /* I2Cn + 0x0C */ - volatile u32 dr; /* I2Cn + 0x10 */ -} i2c_t; - -/* I2Cn control register bits */ -#define I2C_EN 0x80 -#define I2C_IEN 0x40 -#define I2C_STA 0x20 -#define I2C_TX 0x10 -#define I2C_TXAK 0x08 -#define I2C_RSTA 0x04 -#define I2C_INIT_MASK (I2C_EN | I2C_STA | I2C_TX | I2C_RSTA) - -/* I2Cn status register bits */ -#define I2C_CF 0x80 -#define I2C_AAS 0x40 -#define I2C_BB 0x20 -#define I2C_AL 0x10 -#define I2C_SRW 0x04 -#define I2C_IF 0x02 -#define I2C_RXAK 0x01 - -#define I2C_TIMEOUT 100 -#define I2C_RETRIES 1 - -struct mpc8220_i2c_tap { - int scl2tap; - int tap2tap; -}; - -static int mpc_reg_in (volatile u32 * reg); -static void mpc_reg_out (volatile u32 * reg, int val, int mask); -static int wait_for_bb (void); -static int wait_for_pin (int *status); -static int do_address (uchar chip, char rdwr_flag); -static int send_bytes (uchar chip, char *buf, int len); -static int receive_bytes (uchar chip, char *buf, int len); -static int mpc_get_fdr (int); - -static int mpc_reg_in (volatile u32 * reg) -{ - int ret; - ret = *reg >> 24; - __asm__ __volatile__ ("eieio"); - return ret; -} - -static void mpc_reg_out (volatile u32 * reg, int val, int mask) -{ - int tmp; - - if (!mask) { - *reg = val << 24; - } else { - tmp = mpc_reg_in (reg); - *reg = ((tmp & ~mask) | (val & mask)) << 24; - } - __asm__ __volatile__ ("eieio"); - - return; -} - -static int wait_for_bb (void) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - int timeout = I2C_TIMEOUT; - int status; - - status = mpc_reg_in (®s->sr); - - while (timeout-- && (status & I2C_BB)) { - - mpc_reg_out (®s->cr, I2C_STA, I2C_STA); - (void)mpc_reg_in (®s->dr); - mpc_reg_out (®s->cr, 0, I2C_STA); - mpc_reg_out (®s->cr, 0, 0); - mpc_reg_out (®s->cr, I2C_EN, 0); - - udelay (1000); - status = mpc_reg_in (®s->sr); - } - - return (status & I2C_BB); -} - -static int wait_for_pin (int *status) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - int timeout = I2C_TIMEOUT; - - *status = mpc_reg_in (®s->sr); - - while (timeout-- && !(*status & I2C_IF)) { - udelay (1000); - *status = mpc_reg_in (®s->sr); - } - - if (!(*status & I2C_IF)) { - return -1; - } - - mpc_reg_out (®s->sr, 0, I2C_IF); - return 0; -} - -static int do_address (uchar chip, char rdwr_flag) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - int status; - - chip <<= 1; - - if (rdwr_flag) - chip |= 1; - - mpc_reg_out (®s->cr, I2C_TX, I2C_TX); - mpc_reg_out (®s->dr, chip, 0); - - if (wait_for_pin (&status)) - return -2; - if (status & I2C_RXAK) - return -3; - return 0; -} - -static int send_bytes (uchar chip, char *buf, int len) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - int wrcount; - int status; - - for (wrcount = 0; wrcount < len; ++wrcount) { - - mpc_reg_out (®s->dr, buf[wrcount], 0); - - if (wait_for_pin (&status)) - break; - - if (status & I2C_RXAK) - break; - - } - - return !(wrcount == len); - return 0; -} - -static int receive_bytes (uchar chip, char *buf, int len) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - int dummy = 1; - int rdcount = 0; - int status; - int i; - - mpc_reg_out (®s->cr, 0, I2C_TX); - - for (i = 0; i < len; ++i) { - buf[rdcount] = mpc_reg_in (®s->dr); - - if (dummy) - dummy = 0; - else - rdcount++; - - if (wait_for_pin (&status)) - return -4; - } - - mpc_reg_out (®s->cr, I2C_TXAK, I2C_TXAK); - buf[rdcount++] = mpc_reg_in (®s->dr); - - if (wait_for_pin (&status)) - return -5; - - mpc_reg_out (®s->cr, 0, I2C_TXAK); - return 0; -} - -/**************** I2C API ****************/ - -void i2c_init (int speed, int saddr) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - - mpc_reg_out (®s->cr, 0, 0); - mpc_reg_out (®s->adr, saddr << 1, 0); - - /* Set clock - */ - mpc_reg_out (®s->fdr, mpc_get_fdr (speed), 0); - - /* Enable module - */ - mpc_reg_out (®s->cr, I2C_EN, I2C_INIT_MASK); - mpc_reg_out (®s->sr, 0, I2C_IF); - return; -} - -static int mpc_get_fdr (int speed) -{ - static int fdr = -1; - - if (fdr == -1) { - ulong best_speed = 0; - ulong divider; - ulong ipb, scl; - ulong bestmatch = 0xffffffffUL; - int best_i = 0, best_j = 0, i, j; - int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8 }; - struct mpc8220_i2c_tap scltap[] = { - {4, 1}, - {4, 2}, - {6, 4}, - {6, 8}, - {14, 16}, - {30, 32}, - {62, 64}, - {126, 128} - }; - - ipb = gd->bus_clk; - for (i = 7; i >= 0; i--) { - for (j = 7; j >= 0; j--) { - scl = 2 * (scltap[j].scl2tap + - (SCL_Tap[i] - - 1) * scltap[j].tap2tap + 2); - if (ipb <= speed * scl) { - if ((speed * scl - ipb) < bestmatch) { - bestmatch = speed * scl - ipb; - best_i = i; - best_j = j; - best_speed = ipb / scl; - } - } - } - } - divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2); - if (gd->flags & GD_FLG_RELOC) { - fdr = divider; - } else { - printf ("%ld kHz, ", best_speed / 1000); - return divider; - } - } - - return fdr; -} - -int i2c_probe (uchar chip) -{ - i2c_t *regs = (i2c_t *) MMAP_I2C; - int i; - - for (i = 0; i < I2C_RETRIES; i++) { - mpc_reg_out (®s->cr, I2C_STA, I2C_STA); - - if (!do_address (chip, 0)) { - mpc_reg_out (®s->cr, 0, I2C_STA); - break; - } - - mpc_reg_out (®s->cr, 0, I2C_STA); - udelay (50); - } - - return (i == I2C_RETRIES); -} - -int i2c_read (uchar chip, uint addr, int alen, uchar * buf, int len) -{ - uchar xaddr[4]; - i2c_t *regs = (i2c_t *) MMAP_I2C; - int ret = -1; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - - if (wait_for_bb ()) { - printf ("i2c_read: bus is busy\n"); - goto Done; - } - - mpc_reg_out (®s->cr, I2C_STA, I2C_STA); - if (do_address (chip, 0)) { - printf ("i2c_read: failed to address chip\n"); - goto Done; - } - - if (send_bytes (chip, (char *)&xaddr[4 - alen], alen)) { - printf ("i2c_read: send_bytes failed\n"); - goto Done; - } - - mpc_reg_out (®s->cr, I2C_RSTA, I2C_RSTA); - if (do_address (chip, 1)) { - printf ("i2c_read: failed to address chip\n"); - goto Done; - } - - if (receive_bytes (chip, (char *)buf, len)) { - printf ("i2c_read: receive_bytes failed\n"); - goto Done; - } - - ret = 0; - Done: - mpc_reg_out (®s->cr, 0, I2C_STA); - return ret; -} - -int i2c_write (uchar chip, uint addr, int alen, uchar * buf, int len) -{ - uchar xaddr[4]; - i2c_t *regs = (i2c_t *) MMAP_I2C; - int ret = -1; - - xaddr[0] = (addr >> 24) & 0xFF; - xaddr[1] = (addr >> 16) & 0xFF; - xaddr[2] = (addr >> 8) & 0xFF; - xaddr[3] = addr & 0xFF; - - if (wait_for_bb ()) { - printf ("i2c_write: bus is busy\n"); - goto Done; - } - - mpc_reg_out (®s->cr, I2C_STA, I2C_STA); - if (do_address (chip, 0)) { - printf ("i2c_write: failed to address chip\n"); - goto Done; - } - - if (send_bytes (chip, (char *)&xaddr[4 - alen], alen)) { - printf ("i2c_write: send_bytes failed\n"); - goto Done; - } - - if (send_bytes (chip, (char *)buf, len)) { - printf ("i2c_write: send_bytes failed\n"); - goto Done; - } - - ret = 0; - Done: - mpc_reg_out (®s->cr, 0, I2C_STA); - return ret; -} - -#endif /* CONFIG_HARD_I2C */ diff --git a/arch/powerpc/cpu/mpc8220/i2cCore.c b/arch/powerpc/cpu/mpc8220/i2cCore.c deleted file mode 100644 index b89ad034f..000000000 --- a/arch/powerpc/cpu/mpc8220/i2cCore.c +++ /dev/null @@ -1,627 +0,0 @@ -/* I2cCore.c - MPC8220 PPC I2C Library */ - -/* Copyright 2004 Freescale Semiconductor, Inc. */ - -/* -modification history --------------------- -01c,29jun04,tcl 1.3 removed CR. Added two bytes offset support. -01b,19jan04,tcl 1.2 removed i2cMsDelay and sysDecGet. renamed i2cMsDelay - back to sysMsDelay -01a,19jan04,tcl 1.1 created and seperated from i2c.c -*/ - -/* -DESCRIPTION -This file contain I2C low level handling library functions -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <vxWorks.h> -#include <sysLib.h> -#include <iosLib.h> -#include <logLib.h> -#include <tickLib.h> - -/* BSP Includes */ -#include "config.h" -#include "mpc8220.h" -#include "i2cCore.h" - -#ifdef DEBUG_I2CCORE -int I2CCDbg = 0; -#endif - -#define ABS(x) ((x < 0)? -x : x) - -char *I2CERR[16] = { - "Transfer in Progress\n", /* 0 */ - "Transfer complete\n", - "Not Addressed\n", /* 2 */ - "Addressed as a slave\n", - "Bus is Idle\n", /* 4 */ - "Bus is busy\n", - "Arbitration Lost\n", /* 6 */ - "Arbitration on Track\n", - "Slave receive, master writing to slave\n", /* 8 */ - "Slave transmit, master reading from slave\n", - "Interrupt is pending\n", /* 10 */ - "Interrupt complete\n", - "Acknowledge received\n", /* 12 */ - "No acknowledge received\n", - "Unknown status\n", /* 14 */ - "\n" -}; - -/****************************************************************************** - * - * chk_status - Check I2C status bit - * - * RETURNS: OK, or ERROR if the bit encounter - * - */ - -STATUS chk_status (PSI2C pi2c, UINT8 sta_bit, UINT8 truefalse) -{ - int i, status = 0; - - for (i = 0; i < I2C_POLL_COUNT; i++) { - if ((pi2c->sr & sta_bit) == (truefalse ? sta_bit : 0)) - return (OK); - } - - I2CCDBG (L2, ("--- sr %x stabit %x truefalse %d\n", - pi2c->sr, sta_bit, truefalse, 0, 0, 0)); - - if (i == I2C_POLL_COUNT) { - switch (sta_bit) { - case I2C_STA_CF: - status = 0; - break; - case I2C_STA_AAS: - status = 2; - break; - case I2C_STA_BB: - status = 4; - break; - case I2C_STA_AL: - status = 6; - break; - case I2C_STA_SRW: - status = 8; - break; - case I2C_STA_IF: - status = 10; - break; - case I2C_STA_RXAK: - status = 12; - break; - default: - status = 14; - break; - } - - if (!truefalse) - status++; - - I2CCDBG (NO, ("--- status %d\n", status, 0, 0, 0, 0, 0)); - I2CCDBG (NO, (I2CERR[status], 0, 0, 0, 0, 0, 0)); - } - - return (ERROR); -} - -/****************************************************************************** - * - * I2C Enable - Enable the I2C Controller - * - */ -STATUS i2c_enable (SI2C * pi2c, PI2CSET pi2cSet) -{ - int fdr = pi2cSet->bit_rate; - UINT8 adr = pi2cSet->i2c_adr; - - I2CCDBG (L2, ("i2c_enable fdr %d adr %x\n", fdr, adr, 0, 0, 0, 0)); - - i2c_clear (pi2c); /* Clear FDR, ADR, SR and CR reg */ - - SetI2cFDR (pi2c, fdr); /* Frequency */ - pi2c->adr = adr; - - pi2c->cr = I2C_CTL_EN; /* Set Enable */ - - /* - The I2C bus should be in Idle state. If the bus is busy, - clear the STA bit in control register - */ - if (chk_status (pi2c, I2C_STA_BB, 0) != OK) { - if ((pi2c->cr & I2C_CTL_STA) == I2C_CTL_STA) - pi2c->cr &= ~I2C_CTL_STA; - - /* Check again if it is still busy, return error if found */ - if (chk_status (pi2c, I2C_STA_BB, 1) == OK) - return ERROR; - } - - return (OK); -} - -/****************************************************************************** - * - * I2C Disable - Disable the I2C Controller - * - */ -STATUS i2c_disable (PSI2C pi2c) -{ - i2c_clear (pi2c); - - pi2c->cr &= I2C_CTL_EN; /* Disable I2c */ - - if ((pi2c->cr & I2C_CTL_STA) == I2C_CTL_STA) - pi2c->cr &= ~I2C_CTL_STA; - - if (chk_status (pi2c, I2C_STA_BB, 0) != OK) - return ERROR; - - return (OK); -} - -/****************************************************************************** - * - * I2C Clear - Clear the I2C Controller - * - */ -STATUS i2c_clear (PSI2C pi2c) -{ - pi2c->adr = 0; - pi2c->fdr = 0; - pi2c->cr = 0; - pi2c->sr = 0; - - return (OK); -} - - -STATUS i2c_start (PSI2C pi2c, PI2CSET pi2cSet) -{ -#ifdef TWOBYTES - UINT16 ByteOffset = pi2cSet->str_adr; -#else - UINT8 ByteOffset = pi2cSet->str_adr; -#endif -#if 1 - UINT8 tmp = 0; -#endif - UINT8 Addr = pi2cSet->slv_adr; - - pi2c->cr |= I2C_CTL_STA; /* Generate start signal */ - - if (chk_status (pi2c, I2C_STA_BB, 1) != OK) - return ERROR; - - /* Write slave address */ - if (i2c_writebyte (pi2c, &Addr) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } -#ifdef TWOBYTES -# if 0 - /* Issue the offset to start */ - if (i2c_write2byte (pi2c, &ByteOffset) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } -#endif - tmp = (ByteOffset >> 8) & 0xff; - if (i2c_writebyte (pi2c, &tmp) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } - tmp = ByteOffset & 0xff; - if (i2c_writebyte (pi2c, &tmp) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } -#else - if (i2c_writebyte (pi2c, &ByteOffset) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } -#endif - - return (OK); -} - -STATUS i2c_stop (PSI2C pi2c) -{ - pi2c->cr &= ~I2C_CTL_STA; /* Generate stop signal */ - if (chk_status (pi2c, I2C_STA_BB, 0) != OK) - return ERROR; - - return (OK); -} - -/****************************************************************************** - * - * Read Len bytes to the location pointed to by *Data from the device - * with address Addr. - */ -int i2c_readblock (SI2C * pi2c, PI2CSET pi2cSet, UINT8 * Data) -{ - int i = 0; - UINT8 Tmp; - -/* UINT8 ByteOffset = pi2cSet->str_adr; not used? */ - UINT8 Addr = pi2cSet->slv_adr; - int Length = pi2cSet->xfer_size; - - I2CCDBG (L1, ("i2c_readblock addr %x data 0x%08x len %d offset %d\n", - Addr, (int) Data, Length, ByteOffset, 0, 0)); - - if (pi2c->sr & I2C_STA_AL) { /* Check if Arbitration lost */ - I2CCDBG (FN, ("Arbitration lost\n", 0, 0, 0, 0, 0, 0)); - pi2c->sr &= ~I2C_STA_AL; /* Clear Arbitration status bit */ - return ERROR; - } - - pi2c->cr |= I2C_CTL_TX; /* Enable the I2c for TX, Ack */ - - if (i2c_start (pi2c, pi2cSet) == ERROR) - return ERROR; - - pi2c->cr |= I2C_CTL_RSTA; /* Repeat Start */ - - Tmp = Addr | 1; - - if (i2c_writebyte (pi2c, &Tmp) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } - - if (((pi2c->sr & 0x07) == 0x07) || (pi2c->sr & 0x01)) - return ERROR; - - pi2c->cr &= ~I2C_CTL_TX; /* Set receive mode */ - - if (((pi2c->sr & 0x07) == 0x07) || (pi2c->sr & 0x01)) - return ERROR; - - /* Dummy Read */ - if (i2c_readbyte (pi2c, &Tmp, &i) != OK) { - i2c_stop (pi2c); /* Disable I2c */ - return ERROR; - } - - i = 0; - while (Length) { - if (Length == 2) - pi2c->cr |= I2C_CTL_TXAK; - - if (Length == 1) - pi2c->cr &= ~I2C_CTL_STA; - - if (i2c_readbyte (pi2c, Data, &Length) != OK) { - return i2c_stop (pi2c); - } - i++; - Length--; - Data++; - } - - if (i2c_stop (pi2c) == ERROR) - return ERROR; - - return i; -} - -STATUS i2c_writeblock (SI2C * pi2c, PI2CSET pi2cSet, UINT8 * Data) -{ - int Length = pi2cSet->xfer_size; - -#ifdef TWOBYTES - UINT16 ByteOffset = pi2cSet->str_adr; -#else - UINT8 ByteOffset = pi2cSet->str_adr; -#endif - int j, k; - - I2CCDBG (L2, ("i2c_writeblock\n", 0, 0, 0, 0, 0, 0)); - - if (pi2c->sr & I2C_STA_AL) { - /* Check if arbitration lost */ - I2CCDBG (L2, ("Arbitration lost\n", 0, 0, 0, 0, 0, 0)); - pi2c->sr &= ~I2C_STA_AL; /* Clear the condition */ - return ERROR; - } - - pi2c->cr |= I2C_CTL_TX; /* Enable the I2c for TX, Ack */ - - /* Do the not even offset first */ - if ((ByteOffset % 8) != 0) { - int remain; - - if (Length > 8) { - remain = 8 - (ByteOffset % 8); - Length -= remain; - - pi2cSet->str_adr = ByteOffset; - - if (i2c_start (pi2c, pi2cSet) == ERROR) - return ERROR; - - for (j = ByteOffset; j < remain; j++) { - if (i2c_writebyte (pi2c, Data++) != OK) - return ERROR; - } - - if (i2c_stop (pi2c) == ERROR) - return ERROR; - - sysMsDelay (32); - - /* Update the new ByteOffset */ - ByteOffset += remain; - } - } - - for (j = ByteOffset, k = 0; j < (Length + ByteOffset); j++) { - if ((j % 8) == 0) { - pi2cSet->str_adr = j; - if (i2c_start (pi2c, pi2cSet) == ERROR) - return ERROR; - } - - k++; - - if (i2c_writebyte (pi2c, Data++) != OK) - return ERROR; - - if ((j == (Length - 1)) || ((k % 8) == 0)) { - if (i2c_stop (pi2c) == ERROR) - return ERROR; - - sysMsDelay (50); - } - - } - - return k; -} - -STATUS i2c_readbyte (SI2C * pi2c, UINT8 * readb, int *index) -{ - pi2c->sr &= ~I2C_STA_IF; /* Clear Interrupt Bit */ - *readb = pi2c->dr; /* Read a byte */ - - /* - Set I2C_CTRL_TXAK will cause Transfer pending and - set I2C_CTRL_STA will cause Interrupt pending - */ - if (*index != 2) { - if (chk_status (pi2c, I2C_STA_CF, 1) != OK) /* Transfer not complete? */ - return ERROR; - } - - if (*index != 1) { - if (chk_status (pi2c, I2C_STA_IF, 1) != OK) - return ERROR; - } - - return (OK); -} - - -STATUS i2c_writebyte (SI2C * pi2c, UINT8 * writeb) -{ - pi2c->sr &= ~I2C_STA_IF; /* Clear Interrupt */ - pi2c->dr = *writeb; /* Write a byte */ - - if (chk_status (pi2c, I2C_STA_CF, 1) != OK) /* Transfer not complete? */ - return ERROR; - - if (chk_status (pi2c, I2C_STA_IF, 1) != OK) - return ERROR; - - return OK; -} - -STATUS i2c_write2byte (SI2C * pi2c, UINT16 * writeb) -{ - UINT8 data; - - data = (UINT8) ((*writeb >> 8) & 0xff); - if (i2c_writebyte (pi2c, &data) != OK) - return ERROR; - data = (UINT8) (*writeb & 0xff); - if (i2c_writebyte (pi2c, &data) != OK) - return ERROR; - return OK; -} - -/* FDR table base on 33MHz - more detail please refer to Odini2c_dividers.xls -FDR FDR scl sda scl2tap2 -510 432 tap tap tap tap scl_per sda_hold I2C Freq 0 1 2 3 4 5 -000 000 9 3 4 1 28 Clocks 9 Clocks 1190 KHz 0 0 0 0 0 0 -000 001 9 3 4 2 44 Clocks 11 Clocks 758 KHz 0 0 1 0 0 0 -000 010 9 3 6 4 80 Clocks 17 Clocks 417 KHz 0 0 0 1 0 0 -000 011 9 3 6 8 144 Clocks 25 Clocks 231 KHz 0 0 1 1 0 0 -000 100 9 3 14 16 288 Clocks 49 Clocks 116 KHz 0 0 0 0 1 0 -000 101 9 3 30 32 576 Clocks 97 Clocks 58 KHz 0 0 1 0 1 0 -000 110 9 3 62 64 1152 Clocks 193 Clocks 29 KHz 0 0 0 1 1 0 -000 111 9 3 126 128 2304 Clocks 385 Clocks 14 KHz 0 0 1 1 1 0 -001 000 10 3 4 1 30 Clocks 9 Clocks 1111 KHz1 0 0 0 0 0 -001 001 10 3 4 2 48 Clocks 11 Clocks 694 KHz 1 0 1 0 0 0 -001 010 10 3 6 4 88 Clocks 17 Clocks 379 KHz 1 0 0 1 0 0 -001 011 10 3 6 8 160 Clocks 25 Clocks 208 KHz 1 0 1 1 0 0 -001 100 10 3 14 16 320 Clocks 49 Clocks 104 KHz 1 0 0 0 1 0 -001 101 10 3 30 32 640 Clocks 97 Clocks 52 KHz 1 0 1 0 1 0 -001 110 10 3 62 64 1280 Clocks 193 Clocks 26 KHz 1 0 0 1 1 0 -001 111 10 3 126 128 2560 Clocks 385 Clocks 13 KHz 1 0 1 1 1 0 -010 000 12 4 4 1 34 Clocks 10 Clocks 980 KHz 0 1 0 0 0 0 -010 001 12 4 4 2 56 Clocks 13 Clocks 595 KHz 0 1 1 0 0 0 -010 010 12 4 6 4 104 Clocks 21 Clocks 321 KHz 0 1 0 1 0 0 -010 011 12 4 6 8 192 Clocks 33 Clocks 174 KHz 0 1 1 1 0 0 -010 100 12 4 14 16 384 Clocks 65 Clocks 87 KHz 0 1 0 0 1 0 -010 101 12 4 30 32 768 Clocks 129 Clocks 43 KHz 0 1 1 0 1 0 -010 110 12 4 62 64 1536 Clocks 257 Clocks 22 KHz 0 1 0 1 1 0 -010 111 12 4 126 128 3072 Clocks 513 Clocks 11 KHz 0 1 1 1 1 0 -011 000 15 4 4 1 40 Clocks 10 Clocks 833 KHz 1 1 0 0 0 0 -011 001 15 4 4 2 68 Clocks 13 Clocks 490 KHz 1 1 1 0 0 0 -011 010 15 4 6 4 128 Clocks 21 Clocks 260 KHz 1 1 0 1 0 0 -011 011 15 4 6 8 240 Clocks 33 Clocks 139 KHz 1 1 1 1 0 0 -011 100 15 4 14 16 480 Clocks 65 Clocks 69 KHz 1 1 0 0 1 0 -011 101 15 4 30 32 960 Clocks 129 Clocks 35 KHz 1 1 1 0 1 0 -011 110 15 4 62 64 1920 Clocks 257 Clocks 17 KHz 1 1 0 1 1 0 -011 111 15 4 126 128 3840 Clocks 513 Clocks 9 KHz 1 1 1 1 1 0 -100 000 5 1 4 1 20 Clocks 7 Clocks 1667 KHz 0 0 0 0 0 1 -100 001 5 1 4 2 28 Clocks 7 Clocks 1190 KHz 0 0 1 0 0 1 -100 010 5 1 6 4 48 Clocks 9 Clocks 694 KHz 0 0 0 1 0 1 -100 011 5 1 6 8 80 Clocks 9 Clocks 417 KHz 0 0 1 1 0 1 -100 100 5 1 14 16 160 Clocks 17 Clocks 208 KHz 0 0 0 0 1 1 -100 101 5 1 30 32 320 Clocks 33 Clocks 104 KHz 0 0 1 0 1 1 -100 110 5 1 62 64 640 Clocks 65 Clocks 52 KHz 0 0 0 1 1 1 -100 111 5 1 126 128 1280 Clocks 129 Clocks 26 KHz 0 0 1 1 1 1 -101 000 6 1 4 1 22 Clocks 7 Clocks 1515 KHz 1 0 0 0 0 1 -101 001 6 1 4 2 32 Clocks 7 Clocks 1042 KHz 1 0 1 0 0 1 -101 010 6 1 6 4 56 Clocks 9 Clocks 595 KHz 1 0 0 1 0 1 -101 011 6 1 6 8 96 Clocks 9 Clocks 347 KHz 1 0 1 1 0 1 -101 100 6 1 14 16 192 Clocks 17 Clocks 174 KHz 1 0 0 0 1 1 -101 101 6 1 30 32 384 Clocks 33 Clocks 87 KHz 1 0 1 0 1 1 -101 110 6 1 62 64 768 Clocks 65 Clocks 43 KHz 1 0 0 1 1 1 -101 111 6 1 126 128 1536 Clocks 129 Clocks 22 KHz 1 0 1 1 1 1 -110 000 7 2 4 1 24 Clocks 8 Clocks 1389 KHz 0 1 0 0 0 1 -110 001 7 2 4 2 36 Clocks 9 Clocks 926 KHz 0 1 1 0 0 1 -110 010 7 2 6 4 64 Clocks 13 Clocks 521 KHz 0 1 0 1 0 1 -110 011 7 2 6 8 112 Clocks 17 Clocks 298 KHz 0 1 1 1 0 1 -110 100 7 2 14 16 224 Clocks 33 Clocks 149 KHz 0 1 0 0 1 1 -110 101 7 2 30 32 448 Clocks 65 Clocks 74 KHz 0 1 1 0 1 1 -110 110 7 2 62 64 896 Clocks 129 Clocks 37 KHz 0 1 0 1 1 1 -110 111 7 2 126 128 1792 Clocks 257 Clocks 19 KHz 0 1 1 1 1 1 -111 000 8 2 4 1 26 Clocks 8 Clocks 1282 KHz 1 1 0 0 0 1 -111 001 8 2 4 2 40 Clocks 9 Clocks 833 KHz 1 1 1 0 0 1 -111 010 8 2 6 4 72 Clocks 13 Clocks 463 KHz 1 1 0 1 0 1 -111 011 8 2 6 8 128 Clocks 17 Clocks 260 KHz 1 1 1 1 0 1 -111 100 8 2 14 16 256 Clocks 33 Clocks 130 KHz 1 1 0 0 1 1 -111 101 8 2 30 32 512 Clocks 65 Clocks 65 KHz 1 1 1 0 1 1 -111 110 8 2 62 64 1024 Clocks 129 Clocks 33 KHz 1 1 0 1 1 1 -111 111 8 2 126 128 2048 Clocks 257 Clocks 16 KHz 1 1 1 1 1 1 -*/ -STATUS SetI2cFDR (PSI2C pi2cRegs, int bitrate) -{ -/* Constants */ - const UINT8 div_hold[8][3] = { {9, 3}, {10, 3}, - {12, 4}, {15, 4}, - {5, 1}, {6, 1}, - {7, 2}, {8, 2} - }; - - const UINT8 scl_tap[8][2] = { {4, 1}, {4, 2}, - {6, 4}, {6, 8}, - {14, 16}, {30, 32}, - {62, 64}, {126, 128} - }; - - UINT8 mfdr_bits; - - int i = 0; - int j = 0; - - int Diff, min; - int WhichFreq, iRec, jRec; - int SCL_Period; - int SCL_Hold; - int I2C_Freq; - - I2CCDBG (L2, ("Entering getBitRate: bitrate %d pi2cRegs 0x%08x\n", - bitrate, (int) pi2cRegs, 0, 0, 0, 0)); - - if (bitrate < 0) { - I2CCDBG (NO, ("Invalid bitrate\n", 0, 0, 0, 0, 0, 0)); - return ERROR; - } - - /* Initialize */ - mfdr_bits = 0; - min = 0x7fffffff; - WhichFreq = iRec = jRec = 0; - - for (i = 0; i < 8; i++) { - for (j = 0; j < 8; j++) { - /* SCL Period = 2 * (scl2tap + [(SCL_Tap - 1) * tap2tap] + 2) - * SCL Hold = scl2tap + ((SDA_Tap - 1) * tap2tap) + 3 - * Bit Rate (I2C Freq) = System Freq / SCL Period - */ - SCL_Period = - 2 * (scl_tap[i][0] + - ((div_hold[j][0] - 1) * scl_tap[i][1]) + - 2); - - /* Now get the I2C Freq */ - I2C_Freq = DEV_CLOCK_FREQ / SCL_Period; - - /* Take equal or slower */ - if (I2C_Freq > bitrate) - continue; - - /* Take the differences */ - Diff = I2C_Freq - bitrate; - - Diff = ABS (Diff); - - /* Find the closer value */ - if (Diff < min) { - min = Diff; - WhichFreq = I2C_Freq; - iRec = i; - jRec = j; - } - - I2CCDBG (L2, - ("--- (%d,%d) I2C_Freq %d minDiff %d min %d\n", - i, j, I2C_Freq, Diff, min, 0)); - } - } - - SCL_Period = - 2 * (scl_tap[iRec][0] + - ((div_hold[jRec][0] - 1) * scl_tap[iRec][1]) + 2); - - I2CCDBG (L2, ("\nmin %d WhichFreq %d iRec %d jRec %d\n", - min, WhichFreq, iRec, jRec, 0, 0)); - I2CCDBG (L2, ("--- scl2tap %d SCL_Tap %d tap2tap %d\n", - scl_tap[iRec][0], div_hold[jRec][0], scl_tap[iRec][1], - 0, 0, 0)); - - /* This may no require */ - SCL_Hold = - scl_tap[iRec][0] + - ((div_hold[jRec][1] - 1) * scl_tap[iRec][1]) + 3; - I2CCDBG (L2, - ("--- SCL_Period %d SCL_Hold %d\n", SCL_Period, SCL_Hold, 0, - 0, 0, 0)); - - I2CCDBG (L2, ("--- mfdr_bits %x\n", mfdr_bits, 0, 0, 0, 0, 0)); - - /* FDR 4,3,2 */ - if ((iRec & 1) == 1) - mfdr_bits |= 0x04; /* FDR 2 */ - if ((iRec & 2) == 2) - mfdr_bits |= 0x08; /* FDR 3 */ - if ((iRec & 4) == 4) - mfdr_bits |= 0x10; /* FDR 4 */ - /* FDR 5,1,0 */ - if ((jRec & 1) == 1) - mfdr_bits |= 0x01; /* FDR 0 */ - if ((jRec & 2) == 2) - mfdr_bits |= 0x02; /* FDR 1 */ - if ((jRec & 4) == 4) - mfdr_bits |= 0x20; /* FDR 5 */ - - I2CCDBG (L2, ("--- mfdr_bits %x\n", mfdr_bits, 0, 0, 0, 0, 0)); - - pi2cRegs->fdr = mfdr_bits; - - return OK; -} diff --git a/arch/powerpc/cpu/mpc8220/i2cCore.h b/arch/powerpc/cpu/mpc8220/i2cCore.h deleted file mode 100644 index 72783fd48..000000000 --- a/arch/powerpc/cpu/mpc8220/i2cCore.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * i2cCore.h - * - * Prototypes, etc. for the Motorola MPC8220 - * embedded cpu chips - * - * 2004 (c) Freescale, Inc. - * Author: TsiChung Liew <Tsi-Chung.Liew@freescale.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#ifndef __INCi2ccoreh -#define __INCi2ccoreh -#ifndef __ASSEMBLY__ -/* device types */ -#define I2C_DEVICE_TYPE_EEPROM 0 -#define I2C_EEPROM_ADRS 0xa0 -#define I2C_CTRL_ADRS I2C_EEPROM_ADRS -#define EEPROM_ADDR0 0xA2 /* on Dimm SPD eeprom */ -#define EEPROM_ADDR1 0xA4 /* on Board SPD eeprom */ -#define EEPROM_ADDR2 0xD2 /* non-standard eeprom - clock generator */ -/* Control Register */ -#define I2C_CTL_EN 0x80 /* I2C Enable */ -#define I2C_CTL_IEN 0x40 /* I2C Interrupt Enable */ -#define I2C_CTL_STA 0x20 /* Master/Slave Mode select */ -#define I2C_CTL_TX 0x10 /* Transmit/Receive Mode Select */ -#define I2C_CTL_TXAK 0x08 /* Transmit Acknowledge Enable */ -#define I2C_CTL_RSTA 0x04 /* Repeat Start */ -/* Status Register */ -#define I2C_STA_CF 0x80 /* Data Transfer */ -#define I2C_STA_AAS 0x40 /* Adressed As Slave */ -#define I2C_STA_BB 0x20 /* Bus Busy */ -#define I2C_STA_AL 0x10 /* Arbitration Lost */ -#define I2C_STA_SRW 0x04 /* Slave Read/Write */ -#define I2C_STA_IF 0x02 /* I2C Interrupt */ -#define I2C_STA_RXAK 0x01 /* Receive Acknowledge */ -/* Interrupt Contol Register */ -#define I2C_INT_BNBE2 0x80 /* Bus Not Busy Enable 2 */ -#define I2C_INT_TE2 0x40 /* Transmit Enable 2 */ -#define I2C_INT_RE2 0x20 /* Receive Enable 2 */ -#define I2C_INT_IE2 0x10 /* Interrupt Enable 2 */ -#define I2C_INT_BNBE1 0x08 /* Bus Not Busy Enable 1 */ -#define I2C_INT_TE1 0x04 /* Transmit Enable 1 */ -#define I2C_INT_RE1 0x02 /* Receive Enable 1 */ -#define I2C_INT_IE1 0x01 /* Interrupt Enable 1 */ -#define I2C_POLL_COUNT 0x100000 -#define I2C_ENABLE 0x00000001 -#define I2C_DISABLE 0x00000002 -#define I2C_START 0x00000004 -#define I2C_REPSTART 0x00000008 -#define I2C_STOP 0x00000010 -#define I2C_BITRATE 0x00000020 -#define I2C_SLAVEADR 0x00000040 -#define I2C_STARTADR 0x00000080 -#undef TWOBYTES -typedef struct i2c_settings { - /* Device settings */ - int bit_rate; /* Device bit rate */ - u8 i2c_adr; /* I2C address */ - u8 slv_adr; /* Slave address */ -#ifdef TWOBYTES - u16 str_adr; /* Start address */ -#else - u8 str_adr; /* Start address */ -#endif - int xfer_size; /* Transfer Size */ - - int bI2c_en; /* Enable or Disable */ - int cmdFlag; /* I2c Command Flags */ -} i2cset_t; - -/* -int check_status(PSI2C pi2c, u8 sta_bit, u8 truefalse); -int i2c_enable(PSI2C pi2c, PI2CSET pi2cSet); -int i2c_disable(PSI2C pi2c); -int i2c_start(PSI2C pi2c, PI2CSET pi2cSet); -int i2c_stop(PSI2C pi2c); -int i2c_clear(PSI2C pi2c); -int i2c_readblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data); -int i2c_writeblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data); -int i2c_readbyte(PSI2C pi2c, u8 *readb, int *index); -int i2c_writebyte(PSI2C pi2c, u8 *writeb); -int SetI2cFDR( PSI2C pi2cRegs, int bitrate ); -*/ -#endif /* __ASSEMBLY__ */ - -#endif /* __INCi2ccoreh */ diff --git a/arch/powerpc/cpu/mpc8220/interrupts.c b/arch/powerpc/cpu/mpc8220/interrupts.c deleted file mode 100644 index 9544d85b5..000000000 --- a/arch/powerpc/cpu/mpc8220/interrupts.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * (C) Copyright -2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2001 - * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * interrupts.c - just enough support for the decrementer/timer - */ - -#include <common.h> -#include <asm/processor.h> -#include <command.h> - -int interrupt_init_cpu (ulong * decrementer_count) -{ - *decrementer_count = get_tbclk () / CONFIG_SYS_HZ; - - return (0); -} - -/****************************************************************************/ - -/* - * Handle external interrupts - */ -void external_interrupt (struct pt_regs *regs) -{ - puts ("external_interrupt (oops!)\n"); -} - -void timer_interrupt_cpu (struct pt_regs *regs) -{ - /* nothing to do here */ - return; -} - -/****************************************************************************/ - -/* - * Install and free a interrupt handler. - */ - -void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg) -{ - -} - -void irq_free_handler (int vec) -{ - -} - -/****************************************************************************/ - -void -do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[]) -{ - puts ("IRQ related functions are unimplemented currently.\n"); -} diff --git a/arch/powerpc/cpu/mpc8220/io.S b/arch/powerpc/cpu/mpc8220/io.S deleted file mode 100644 index 5ecdf550a..000000000 --- a/arch/powerpc/cpu/mpc8220/io.S +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> - * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> - * Copyright (C) 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Andreas Heppel <aheppel@sysgo.de> - * Copyright (C) 2003 Wolfgang Denk <wd@denx.de> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <config.h> -#include <ppc_asm.tmpl> - -/* ------------------------------------------------------------------------------- */ -/* Function: in8 */ -/* Description: Input 8 bits */ -/* ------------------------------------------------------------------------------- */ - .globl in8 -in8: - lbz r3,0(r3) - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: in16 */ -/* Description: Input 16 bits */ -/* ------------------------------------------------------------------------------- */ - .globl in16 -in16: - lhz r3,0(r3) - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: in16r */ -/* Description: Input 16 bits and byte reverse */ -/* ------------------------------------------------------------------------------- */ - .globl in16r -in16r: - lhbrx r3,0,r3 - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: in32 */ -/* Description: Input 32 bits */ -/* ------------------------------------------------------------------------------- */ - .globl in32 -in32: - lwz 3,0(3) - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: in32r */ -/* Description: Input 32 bits and byte reverse */ -/* ------------------------------------------------------------------------------- */ - .globl in32r -in32r: - lwbrx r3,0,r3 - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: out8 */ -/* Description: Output 8 bits */ -/* ------------------------------------------------------------------------------- */ - .globl out8 -out8: - stb r4,0(r3) - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: out16 */ -/* Description: Output 16 bits */ -/* ------------------------------------------------------------------------------- */ - .globl out16 -out16: - sth r4,0(r3) - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: out16r */ -/* Description: Byte reverse and output 16 bits */ -/* ------------------------------------------------------------------------------- */ - .globl out16r -out16r: - sthbrx r4,0,r3 - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: out32 */ -/* Description: Output 32 bits */ -/* ------------------------------------------------------------------------------- */ - .globl out32 -out32: - stw r4,0(r3) - sync - blr - -/* ------------------------------------------------------------------------------- */ -/* Function: out32r */ -/* Description: Byte reverse and output 32 bits */ -/* ------------------------------------------------------------------------------- */ - .globl out32r -out32r: - stwbrx r4,0,r3 - sync - blr diff --git a/arch/powerpc/cpu/mpc8220/loadtask.c b/arch/powerpc/cpu/mpc8220/loadtask.c deleted file mode 100644 index 6d8b627e8..000000000 --- a/arch/powerpc/cpu/mpc8220/loadtask.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * This file is based on code - * (C) Copyright Motorola, Inc., 2000 - */ - -#include <common.h> -#include <mpc8220.h> - -/* Multichannel DMA microcode */ -extern int taskTable; - -void loadtask (int basetask, int tasks) -{ - int *sram = (int *) (MMAP_SRAM + 512); - int *task_org = &taskTable; - unsigned int start, offset, end; - int i; - -#ifdef DEBUG - printf ("basetask = %d, tasks = %d\n", basetask, tasks); - printf ("task_org = 0x%08x\n", (unsigned int) task_org); -#endif - - /* setup TaskBAR register */ - *(vu_long *) MMAP_DMA = (MMAP_SRAM + 512); - - /* relocate task table entries */ - offset = (unsigned int) sram; - for (i = basetask; i < basetask + tasks; i++) { - sram[i * 8 + 0] = task_org[i * 8 + 0] + offset; - sram[i * 8 + 1] = task_org[i * 8 + 1] + offset; - sram[i * 8 + 2] = task_org[i * 8 + 2] + offset; - sram[i * 8 + 3] = task_org[i * 8 + 3] + offset; - sram[i * 8 + 4] = task_org[i * 8 + 4]; - sram[i * 8 + 5] = task_org[i * 8 + 5]; - sram[i * 8 + 6] = task_org[i * 8 + 6] + offset; - sram[i * 8 + 7] = task_org[i * 8 + 7]; - } - - /* relocate task descriptors */ - start = (sram[basetask * 8] - (unsigned int) sram); - end = (sram[(basetask + tasks - 1) * 8 + 1] - (unsigned int) sram); - -#ifdef DEBUG - printf ("TDT start = 0x%08x, end = 0x%08x\n", start, end); -#endif - - start /= 4; - end /= 4; - for (i = start; i <= end; i++) { - sram[i] = task_org[i]; - } - - /* relocate variables */ - start = (sram[basetask * 8 + 2] - (unsigned int) sram); - end = (sram[(basetask + tasks - 1) * 8 + 2] + 256 - - (unsigned int) sram); - start /= 4; - end /= 4; - for (i = start; i < end; i++) { - sram[i] = task_org[i]; - } - - /* relocate function decriptors */ - start = ((sram[basetask * 8 + 3] & 0xfffffffc) - (unsigned int) sram); - end = ((sram[(basetask + tasks - 1) * 8 + 3] & 0xfffffffc) + 256 - - (unsigned int) sram); - start /= 4; - end /= 4; - for (i = start; i < end; i++) { - sram[i] = task_org[i]; - } - - asm volatile ("sync"); -} diff --git a/arch/powerpc/cpu/mpc8220/pci.c b/arch/powerpc/cpu/mpc8220/pci.c deleted file mode 100644 index 7ef43b72c..000000000 --- a/arch/powerpc/cpu/mpc8220/pci.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * Copyright 2004 Freescale Semiconductor. - * Copyright (C) 2003 Motorola Inc. - * Xianghua Xiao (x.xiao@motorola.com) - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * PCI Configuration space access support for MPC8220 PCI Bridge - */ -#include <common.h> -#include <mpc8220.h> -#include <pci.h> -#include <asm/io.h> - -#if defined(CONFIG_PCI) - -/* System RAM mapped over PCI */ -#define CONFIG_PCI_SYS_MEM_BUS CONFIG_SYS_SDRAM_BASE -#define CONFIG_PCI_SYS_MEM_PHYS CONFIG_SYS_SDRAM_BASE -#define CONFIG_PCI_SYS_MEM_SIZE (1024 * 1024 * 1024) - -#define cfg_read(val, addr, type, op) *val = op((type)(addr)); -#define cfg_write(val, addr, type, op) op((type *)(addr), (val)); - -#define PCI_OP(rw, size, type, op, mask) \ -int mpc8220_pci_##rw##_config_##size(struct pci_controller *hose, \ - pci_dev_t dev, int offset, type val) \ -{ \ - u32 addr = 0; \ - u16 cfg_type = 0; \ - addr = ((offset & 0xfc) | cfg_type | (dev) | 0x80000000); \ - out_be32(hose->cfg_addr, addr); \ - __asm__ __volatile__("sync"); \ - cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ - out_be32(hose->cfg_addr, addr & 0x7fffffff); \ - __asm__ __volatile__("sync"); \ - return 0; \ -} - -PCI_OP(read, byte, u8 *, in_8, 3) -PCI_OP(read, word, u16 *, in_le16, 2) -PCI_OP(write, byte, u8, out_8, 3) -PCI_OP(write, word, u16, out_le16, 2) -PCI_OP(write, dword, u32, out_le32, 0) - -int mpc8220_pci_read_config_dword(struct pci_controller *hose, pci_dev_t dev, - int offset, u32 *val) -{ - u32 addr; - u32 tmpv; - u32 mask = 2; /* word access */ - /* Read lower 16 bits */ - addr = ((offset & 0xfc) | (dev) | 0x80000000); - out_be32(hose->cfg_addr, addr); - __asm__ __volatile__("sync"); - *val = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); - out_be32(hose->cfg_addr, addr & 0x7fffffff); - __asm__ __volatile__("sync"); - - /* Read upper 16 bits */ - offset += 2; - addr = ((offset & 0xfc) | 1 | (dev) | 0x80000000); - out_be32(hose->cfg_addr, addr); - __asm__ __volatile__("sync"); - tmpv = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); - out_be32(hose->cfg_addr, addr & 0x7fffffff); - __asm__ __volatile__("sync"); - - /* combine results into dword value */ - *val = (tmpv << 16) | *val; - - return 0; -} - -void -pci_mpc8220_init(struct pci_controller *hose) -{ - u32 win0, win1, win2; - volatile mpc8220_xcpci_t *xcpci = - (volatile mpc8220_xcpci_t *) MMAP_XCPCI; - - volatile pcfg8220_t *portcfg = (volatile pcfg8220_t *) MMAP_PCFG; - - win0 = (u32) CONFIG_PCI_MEM_PHYS; - win1 = (u32) CONFIG_PCI_IO_PHYS; - win2 = (u32) CONFIG_PCI_CFG_PHYS; - - /* Assert PCI reset */ - out_be32 (&xcpci->glb_stat_ctl, PCI_GLB_STAT_CTRL_PR); - - /* Disable prefetching but read-multiples will still prefetch */ - out_be32 (&xcpci->target_ctrl, 0x00000000); - - /* Initiator windows */ - out_be32 (&xcpci->init_win0, (win0 >> 16) | win0 | 0x003f0000); - out_be32 (&xcpci->init_win1, ((win1 >> 16) | win1 )); - out_be32 (&xcpci->init_win2, ((win2 >> 16) | win2 )); - - out_be32 (&xcpci->init_win_cfg, - PCI_INIT_WIN_CFG_WIN0_CTRL_EN | - PCI_INIT_WIN_CFG_WIN1_CTRL_EN | PCI_INIT_WIN_CFG_WIN1_CTRL_IO | - PCI_INIT_WIN_CFG_WIN2_CTRL_EN | PCI_INIT_WIN_CFG_WIN2_CTRL_IO); - - out_be32 (&xcpci->init_ctrl, 0x00000000); - - /* Enable bus master and mem access */ - out_be32 (&xcpci->stat_cmd_reg, PCI_STAT_CMD_B | PCI_STAT_CMD_M); - - /* Cache line size and master latency */ - out_be32 (&xcpci->bist_htyp_lat_cshl, (0xf8 << PCI_CFG1_LT_SHIFT)); - - out_be32 (&xcpci->base0, PCI_BASE_ADDR_REG0); /* 256MB - MBAR space */ - out_be32 (&xcpci->base1, PCI_BASE_ADDR_REG1); /* 1GB - SDRAM space */ - - out_be32 (&xcpci->target_bar0, - PCI_TARGET_BASE_ADDR_REG0 | PCI_TARGET_BASE_ADDR_EN); - out_be32 (&xcpci->target_bar1, - PCI_TARGET_BASE_ADDR_REG1 | PCI_TARGET_BASE_ADDR_EN); - - /* Deassert reset bit */ - out_be32 (&xcpci->glb_stat_ctl, 0x00000000); - - /* Enable PCI bus master support */ - /* Set PCIGNT1, PCIREQ1, PCIREQ0/PCIGNTIN, PCIGNT0/PCIREQOUT, - PCIREQ2, PCIGNT2 */ - out_be32((volatile u32 *)&portcfg->pcfg3, - (in_be32((volatile u32 *)&portcfg->pcfg3) & 0xFC3FCE7F)); - out_be32((volatile u32 *)&portcfg->pcfg3, - (in_be32((volatile u32 *)&portcfg->pcfg3) | 0x01400180)); - - hose->first_busno = 0; - hose->last_busno = 0xff; - - pci_set_region(hose->regions + 0, - CONFIG_PCI_MEM_BUS, - CONFIG_PCI_MEM_PHYS, - CONFIG_PCI_MEM_SIZE, - PCI_REGION_MEM); - - pci_set_region(hose->regions + 1, - CONFIG_PCI_IO_BUS, - CONFIG_PCI_IO_PHYS, - CONFIG_PCI_IO_SIZE, - PCI_REGION_IO); - - pci_set_region(hose->regions + 2, - CONFIG_PCI_SYS_MEM_BUS, - CONFIG_PCI_SYS_MEM_PHYS, - CONFIG_PCI_SYS_MEM_SIZE, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - hose->region_count = 3; - - hose->cfg_addr = &(xcpci->cfg_adr); - hose->cfg_data = (volatile unsigned char *)CONFIG_PCI_CFG_BUS; - - pci_set_ops(hose, - mpc8220_pci_read_config_byte, - mpc8220_pci_read_config_word, - mpc8220_pci_read_config_dword, - mpc8220_pci_write_config_byte, - mpc8220_pci_write_config_word, - mpc8220_pci_write_config_dword); - - /* Hose scan */ - pci_register_hose(hose); - hose->last_busno = pci_hose_scan(hose); - - out_be32 (&xcpci->base0, PCI_BASE_ADDR_REG0); /* 256MB - MBAR space */ - out_be32 (&xcpci->base1, PCI_BASE_ADDR_REG1); /* 1GB - SDRAM space */ -} - -#endif /* CONFIG_PCI */ diff --git a/arch/powerpc/cpu/mpc8220/speed.c b/arch/powerpc/cpu/mpc8220/speed.c deleted file mode 100644 index bb72e5ce1..000000000 --- a/arch/powerpc/cpu/mpc8220/speed.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * (C) Copyright 2004, Freescale, Inc - * TsiChung Liew, Tsi-Chung.Liew@freescale.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <mpc8220.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -typedef struct pllmultiplier { - u8 hid1; - int multi; - int vco_div; -} pllcfg_t; - -/* ------------------------------------------------------------------------- */ - -/* - * - */ - -int get_clocks (void) -{ - pllcfg_t bus2core[] = { - {0x02, 2, 8}, /* 1 */ - {0x01, 2, 4}, - {0x0C, 3, 8}, /* 1.5 */ - {0x00, 3, 4}, - {0x18, 3, 2}, - {0x05, 4, 4}, /* 2 */ - {0x04, 4, 2}, - {0x11, 5, 4}, /* 2.5 */ - {0x06, 5, 2}, - {0x10, 6, 4}, /* 3 */ - {0x08, 6, 2}, - {0x0E, 7, 2}, /* 3.5 */ - {0x0A, 8, 2}, /* 4 */ - {0x07, 9, 2}, /* 4.5 */ - {0x0B, 10, 2}, /* 5 */ - {0x09, 11, 2}, /* 5.5 */ - {0x0D, 12, 2}, /* 6 */ - {0x12, 13, 2}, /* 6.5 */ - {0x14, 14, 2}, /* 7 */ - {0x16, 15, 2}, /* 7.5 */ - {0x1C, 16, 2} /* 8 */ - }; - u32 hid1; - int i, size, pci2bus; - -#if !defined(CONFIG_SYS_MPC8220_CLKIN) -#error clock measuring not implemented yet - define CONFIG_SYS_MPC8220_CLKIN -#endif - - gd->arch.inp_clk = CONFIG_SYS_MPC8220_CLKIN; - - /* Read XLB to PCI(INP) clock multiplier */ - pci2bus = (*((volatile u32 *)PCI_REG_PCIGSCR) & - PCI_REG_PCIGSCR_PCI2XLB_CLK_MASK)>>PCI_REG_PCIGSCR_PCI2XLB_CLK_BIT; - - /* XLB bus clock */ - gd->bus_clk = CONFIG_SYS_MPC8220_CLKIN * pci2bus; - - /* PCI clock is same as input clock */ - gd->pci_clk = CONFIG_SYS_MPC8220_CLKIN; - - /* FlexBus is temporary set as the same as input clock */ - /* will do dynamic in the future */ - gd->arch.flb_clk = CONFIG_SYS_MPC8220_CLKIN; - - /* CPU Clock - Read HID1 */ - asm volatile ("mfspr %0, 1009":"=r" (hid1):); - - size = sizeof (bus2core) / sizeof (pllcfg_t); - - hid1 >>= 27; - - for (i = 0; i < size; i++) - if (hid1 == bus2core[i].hid1) { - gd->cpu_clk = (bus2core[i].multi * gd->bus_clk) >> 1; - gd->arch.vco_clk = - CONFIG_SYS_MPC8220_SYSPLL_VCO_MULTIPLIER * - (gd->pci_clk * bus2core[i].vco_div) / 2; - break; - } - - /* hardcoded 81MHz for now */ - gd->arch.pev_clk = 81000000; - - return (0); -} - -int prt_mpc8220_clks (void) -{ - char buf1[32], buf2[32], buf3[32], buf4[32]; - - printf (" Bus %s MHz, CPU %s MHz, PCI %s MHz, VCO %s MHz\n", - strmhz(buf1, gd->bus_clk), - strmhz(buf2, gd->cpu_clk), - strmhz(buf3, gd->pci_clk), - strmhz(buf4, gd->arch.vco_clk) - ); - return (0); -} - -/* ------------------------------------------------------------------------- */ diff --git a/arch/powerpc/cpu/mpc8220/start.S b/arch/powerpc/cpu/mpc8220/start.S deleted file mode 100644 index 629563191..000000000 --- a/arch/powerpc/cpu/mpc8220/start.S +++ /dev/null @@ -1,734 +0,0 @@ -/* - * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> - * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> - * Copyright (C) 2000 - 2003 Wolfgang Denk <wd@denx.de> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * U-Boot - Startup Code for MPC8220 CPUs - */ -#include <asm-offsets.h> -#include <config.h> -#include <mpc8220.h> -#include <version.h> - -#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ - -#include <ppc_asm.tmpl> -#include <ppc_defs.h> - -#include <asm/cache.h> -#include <asm/mmu.h> -#include <asm/u-boot.h> - -/* We don't want the MMU yet. -*/ -#undef MSR_KERNEL -/* Floating Point enable, Machine Check and Recoverable Interr. */ -#ifdef DEBUG -#define MSR_KERNEL (MSR_FP|MSR_RI) -#else -#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) -#endif - -/* - * Set up GOT: Global Offset Table - * - * Use r12 to access the GOT - */ - START_GOT - GOT_ENTRY(_GOT2_TABLE_) - GOT_ENTRY(_FIXUP_TABLE_) - - GOT_ENTRY(_start) - GOT_ENTRY(_start_of_vectors) - GOT_ENTRY(_end_of_vectors) - GOT_ENTRY(transfer_to_handler) - - GOT_ENTRY(__init_end) - GOT_ENTRY(__bss_end) - GOT_ENTRY(__bss_start) - END_GOT - -/* - * Version string - */ - .data - .globl version_string -version_string: - .ascii U_BOOT_VERSION_STRING, "\0" - -/* - * Exception vectors - */ - .text - . = EXC_OFF_SYS_RESET - .globl _start -_start: - mfmsr r5 /* save msr contents */ - - /* replace default MBAR base address from 0x80000000 - to 0xf0000000 */ - -#if defined(CONFIG_SYS_DEFAULT_MBAR) && !defined(CONFIG_SYS_RAMBOOT) - lis r3, CONFIG_SYS_MBAR@h - ori r3, r3, CONFIG_SYS_MBAR@l - - /* MBAR is mirrored into the MBAR SPR */ - mtspr MBAR,r3 - mtspr SPRN_SPRG7W,r3 - lis r4, CONFIG_SYS_DEFAULT_MBAR@h - stw r3, 0(r4) -#endif /* CONFIG_SYS_DEFAULT_MBAR */ - - /* Initialise the MPC8220 processor core */ - /*--------------------------------------------------------------*/ - - bl init_8220_core - - /* initialize some things that are hard to access from C */ - /*--------------------------------------------------------------*/ - - /* set up stack in on-chip SRAM */ - lis r3, CONFIG_SYS_INIT_RAM_ADDR@h - ori r3, r3, CONFIG_SYS_INIT_RAM_ADDR@l - ori r1, r3, CONFIG_SYS_INIT_SP_OFFSET - - li r0, 0 /* Make room for stack frame header and */ - stwu r0, -4(r1) /* clear final stack frame so that */ - stwu r0, -4(r1) /* stack backtraces terminate cleanly */ - - /* let the C-code set up the rest */ - /* */ - /* Be careful to keep code relocatable ! */ - /*--------------------------------------------------------------*/ - - GET_GOT /* initialize GOT access */ - - /* r3: IMMR */ - bl cpu_init_f /* run low-level CPU init code (in Flash)*/ - - bl board_init_f /* run 1st part of board init code (in Flash)*/ - - /* NOTREACHED - board_init_f() does not return */ - -/* - * Vector Table - */ - - .globl _start_of_vectors -_start_of_vectors: - -/* Machine check */ - STD_EXCEPTION(0x200, MachineCheck, MachineCheckException) - -/* Data Storage exception. */ - STD_EXCEPTION(0x300, DataStorage, UnknownException) - -/* Instruction Storage exception. */ - STD_EXCEPTION(0x400, InstStorage, UnknownException) - -/* External Interrupt exception. */ - STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) - -/* Alignment exception. */ - . = 0x600 -Alignment: - EXCEPTION_PROLOG(SRR0, SRR1) - mfspr r4,DAR - stw r4,_DAR(r21) - mfspr r5,DSISR - stw r5,_DSISR(r21) - addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE) - -/* Program check exception */ - . = 0x700 -ProgramCheck: - EXCEPTION_PROLOG(SRR0, SRR1) - addi r3,r1,STACK_FRAME_OVERHEAD - EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException, - MSR_KERNEL, COPY_EE) - - STD_EXCEPTION(0x800, FPUnavailable, UnknownException) - - /* I guess we could implement decrementer, and may have - * to someday for timekeeping. - */ - STD_EXCEPTION(0x900, Decrementer, timer_interrupt) - - STD_EXCEPTION(0xa00, Trap_0a, UnknownException) - STD_EXCEPTION(0xb00, Trap_0b, UnknownException) - STD_EXCEPTION(0xc00, SystemCall, UnknownException) - STD_EXCEPTION(0xd00, SingleStep, UnknownException) - - STD_EXCEPTION(0xe00, Trap_0e, UnknownException) - STD_EXCEPTION(0xf00, Trap_0f, UnknownException) - - STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException) - STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException) - STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException) -#ifdef DEBUG - . = 0x1300 - /* - * This exception occurs when the program counter matches the - * Instruction Address Breakpoint Register (IABR). - * - * I want the cpu to halt if this occurs so I can hunt around - * with the debugger and look at things. - * - * When DEBUG is defined, both machine check enable (in the MSR) - * and checkstop reset enable (in the reset mode register) are - * turned off and so a checkstop condition will result in the cpu - * halting. - * - * I force the cpu into a checkstop condition by putting an illegal - * instruction here (at least this is the theory). - * - * well - that didnt work, so just do an infinite loop! - */ -1: b 1b -#else - STD_EXCEPTION(0x1300, InstructionBreakpoint, DebugException) -#endif - STD_EXCEPTION(0x1400, SMI, UnknownException) - - STD_EXCEPTION(0x1500, Trap_15, UnknownException) - STD_EXCEPTION(0x1600, Trap_16, UnknownException) - STD_EXCEPTION(0x1700, Trap_17, UnknownException) - STD_EXCEPTION(0x1800, Trap_18, UnknownException) - STD_EXCEPTION(0x1900, Trap_19, UnknownException) - STD_EXCEPTION(0x1a00, Trap_1a, UnknownException) - STD_EXCEPTION(0x1b00, Trap_1b, UnknownException) - STD_EXCEPTION(0x1c00, Trap_1c, UnknownException) - STD_EXCEPTION(0x1d00, Trap_1d, UnknownException) - STD_EXCEPTION(0x1e00, Trap_1e, UnknownException) - STD_EXCEPTION(0x1f00, Trap_1f, UnknownException) - STD_EXCEPTION(0x2000, Trap_20, UnknownException) - STD_EXCEPTION(0x2100, Trap_21, UnknownException) - STD_EXCEPTION(0x2200, Trap_22, UnknownException) - STD_EXCEPTION(0x2300, Trap_23, UnknownException) - STD_EXCEPTION(0x2400, Trap_24, UnknownException) - STD_EXCEPTION(0x2500, Trap_25, UnknownException) - STD_EXCEPTION(0x2600, Trap_26, UnknownException) - STD_EXCEPTION(0x2700, Trap_27, UnknownException) - STD_EXCEPTION(0x2800, Trap_28, UnknownException) - STD_EXCEPTION(0x2900, Trap_29, UnknownException) - STD_EXCEPTION(0x2a00, Trap_2a, UnknownException) - STD_EXCEPTION(0x2b00, Trap_2b, UnknownException) - STD_EXCEPTION(0x2c00, Trap_2c, UnknownException) - STD_EXCEPTION(0x2d00, Trap_2d, UnknownException) - STD_EXCEPTION(0x2e00, Trap_2e, UnknownException) - STD_EXCEPTION(0x2f00, Trap_2f, UnknownException) - - - .globl _end_of_vectors -_end_of_vectors: - - . = 0x3000 - -/* - * This code finishes saving the registers to the exception frame - * and jumps to the appropriate handler for the exception. - * Register r21 is pointer into trap frame, r1 has new stack pointer. - */ - .globl transfer_to_handler -transfer_to_handler: - stw r22,_NIP(r21) - lis r22,MSR_POW@h - andc r23,r23,r22 - stw r23,_MSR(r21) - SAVE_GPR(7, r21) - SAVE_4GPRS(8, r21) - SAVE_8GPRS(12, r21) - SAVE_8GPRS(24, r21) - mflr r23 - andi. r24,r23,0x3f00 /* get vector offset */ - stw r24,TRAP(r21) - li r22,0 - stw r22,RESULT(r21) - lwz r24,0(r23) /* virtual address of handler */ - lwz r23,4(r23) /* where to go when done */ - mtspr SRR0,r24 - mtspr SRR1,r20 - mtlr r23 - SYNC - rfi /* jump to handler, enable MMU */ - -int_return: - mfmsr r28 /* Disable interrupts */ - li r4,0 - ori r4,r4,MSR_EE - andc r28,r28,r4 - SYNC /* Some chip revs need this... */ - mtmsr r28 - SYNC - lwz r2,_CTR(r1) - lwz r0,_LINK(r1) - mtctr r2 - mtlr r0 - lwz r2,_XER(r1) - lwz r0,_CCR(r1) - mtspr XER,r2 - mtcrf 0xFF,r0 - REST_10GPRS(3, r1) - REST_10GPRS(13, r1) - REST_8GPRS(23, r1) - REST_GPR(31, r1) - lwz r2,_NIP(r1) /* Restore environment */ - lwz r0,_MSR(r1) - mtspr SRR0,r2 - mtspr SRR1,r0 - lwz r0,GPR0(r1) - lwz r2,GPR2(r1) - lwz r1,GPR1(r1) - SYNC - rfi - -/* - * This code initialises the MPC8220 processor core - * (conforms to PowerPC 603e spec) - * Note: expects original MSR contents to be in r5. - */ - - .globl init_8220_core -init_8220_core: - - /* Initialize machine status; enable machine check interrupt */ - /*--------------------------------------------------------------*/ - - li r3, MSR_KERNEL /* Set ME and RI flags */ - rlwimi r3, r5, 0, 25, 25 /* preserve IP bit set by HRCW */ -#ifdef DEBUG - rlwimi r3, r5, 0, 21, 22 /* debugger might set SE & BE bits */ -#endif - SYNC /* Some chip revs need this... */ - mtmsr r3 - SYNC - mtspr SRR1, r3 /* Make SRR1 match MSR */ - - /* Initialize the Hardware Implementation-dependent Registers */ - /* HID0 also contains cache control */ - /*--------------------------------------------------------------*/ - - lis r3, CONFIG_SYS_HID0_INIT@h - ori r3, r3, CONFIG_SYS_HID0_INIT@l - SYNC - mtspr HID0, r3 - - lis r3, CONFIG_SYS_HID0_FINAL@h - ori r3, r3, CONFIG_SYS_HID0_FINAL@l - SYNC - mtspr HID0, r3 - - /* Enable Extra BATs */ - mfspr r3, 1011 /* HID2 */ - lis r4, 0x0004 - ori r4, r4, 0x0000 - or r4, r4, r3 - mtspr 1011, r4 - sync - - /* clear all BAT's */ - /*--------------------------------------------------------------*/ - - li r0, 0 - mtspr DBAT0U, r0 - mtspr DBAT0L, r0 - mtspr DBAT1U, r0 - mtspr DBAT1L, r0 - mtspr DBAT2U, r0 - mtspr DBAT2L, r0 - mtspr DBAT3U, r0 - mtspr DBAT3L, r0 - mtspr DBAT4U, r0 - mtspr DBAT4L, r0 - mtspr DBAT5U, r0 - mtspr DBAT5L, r0 - mtspr DBAT6U, r0 - mtspr DBAT6L, r0 - mtspr DBAT7U, r0 - mtspr DBAT7L, r0 - mtspr IBAT0U, r0 - mtspr IBAT0L, r0 - mtspr IBAT1U, r0 - mtspr IBAT1L, r0 - mtspr IBAT2U, r0 - mtspr IBAT2L, r0 - mtspr IBAT3U, r0 - mtspr IBAT3L, r0 - mtspr IBAT4U, r0 - mtspr IBAT4L, r0 - mtspr IBAT5U, r0 - mtspr IBAT5L, r0 - mtspr IBAT6U, r0 - mtspr IBAT6L, r0 - mtspr IBAT7U, r0 - mtspr IBAT7L, r0 - SYNC - - /* invalidate all tlb's */ - /* */ - /* From the 603e User Manual: "The 603e provides the ability to */ - /* invalidate a TLB entry. The TLB Invalidate Entry (tlbie) */ - /* instruction invalidates the TLB entry indexed by the EA, and */ - /* operates on both the instruction and data TLBs simultaneously*/ - /* invalidating four TLB entries (both sets in each TLB). The */ - /* index corresponds to bits 15-19 of the EA. To invalidate all */ - /* entries within both TLBs, 32 tlbie instructions should be */ - /* issued, incrementing this field by one each time." */ - /* */ - /* "Note that the tlbia instruction is not implemented on the */ - /* 603e." */ - /* */ - /* bits 15-19 correspond to addresses 0x00000000 to 0x0001F000 */ - /* incrementing by 0x1000 each time. The code below is sort of */ - /* based on code in "flush_tlbs" from arch/powerpc/kernel/head.S */ - /* */ - /*--------------------------------------------------------------*/ - - li r3, 32 - mtctr r3 - li r3, 0 -1: tlbie r3 - addi r3, r3, 0x1000 - bdnz 1b - SYNC - - /* Done! */ - /*--------------------------------------------------------------*/ - - blr - -/* Cache functions. - * - * Note: requires that all cache bits in - * HID0 are in the low half word. - */ - .globl icache_enable -icache_enable: - lis r4, 0 - ori r4, r4, CONFIG_SYS_HID0_INIT /* set ICE & ICFI bit */ - rlwinm r3, r4, 0, 21, 19 /* clear the ICFI bit */ - - /* - * The setting of the instruction cache enable (ICE) bit must be - * preceded by an isync instruction to prevent the cache from being - * enabled or disabled while an instruction access is in progress. - */ - isync - mtspr HID0, r4 /* Enable Instr Cache & Inval cache */ - mtspr HID0, r3 /* using 2 consec instructions */ - isync - blr - - .globl icache_disable -icache_disable: - mfspr r3, HID0 - rlwinm r3, r3, 0, 17, 15 /* clear the ICE bit */ - mtspr HID0, r3 - isync - blr - - .globl icache_status -icache_status: - mfspr r3, HID0 - rlwinm r3, r3, HID0_ICE_BITPOS + 1, 31, 31 - blr - - .globl dcache_enable -dcache_enable: - lis r4, 0 - ori r4, r4, HID0_DCE|HID0_DCFI /* set DCE & DCFI bit */ - rlwinm r3, r4, 0, 22, 20 /* clear the DCFI bit */ - - /* Enable address translation in MSR bit */ - mfmsr r5 - ori r5, r5, 0x - - - /* - * The setting of the instruction cache enable (ICE) bit must be - * preceded by an isync instruction to prevent the cache from being - * enabled or disabled while an instruction access is in progress. - */ - isync - mtspr HID0, r4 /* Enable Data Cache & Inval cache*/ - mtspr HID0, r3 /* using 2 consec instructions */ - isync - blr - - .globl dcache_disable -dcache_disable: - mfspr r3, HID0 - rlwinm r3, r3, 0, 18, 16 /* clear the DCE bit */ - mtspr HID0, r3 - isync - blr - - .globl dcache_status -dcache_status: - mfspr r3, HID0 - rlwinm r3, r3, HID0_DCE_BITPOS + 1, 31, 31 - blr - - .globl get_pvr -get_pvr: - mfspr r3, PVR - blr - -/*------------------------------------------------------------------------------*/ - -/* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. - * - * r3 = dest - * r4 = src - * r5 = length in bytes - * r6 = cachelinesize - */ - .globl relocate_code -relocate_code: - mr r1, r3 /* Set new stack pointer */ - mr r9, r4 /* Save copy of Global Data pointer */ - mr r10, r5 /* Save copy of Destination Address */ - - GET_GOT - mr r3, r5 /* Destination Address */ - lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */ - ori r4, r4, CONFIG_SYS_MONITOR_BASE@l - lwz r5, GOT(__init_end) - sub r5, r5, r4 - li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */ - - /* - * Fix GOT pointer: - * - * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address - * - * Offset: - */ - sub r15, r10, r4 - - /* First our own GOT */ - add r12, r12, r15 - /* then the one used by the C code */ - add r30, r30, r15 - - /* - * Now relocate code - */ - - cmplw cr1,r3,r4 - addi r0,r5,3 - srwi. r0,r0,2 - beq cr1,4f /* In place copy is not necessary */ - beq 7f /* Protect against 0 count */ - mtctr r0 - bge cr1,2f - - la r8,-4(r4) - la r7,-4(r3) -1: lwzu r0,4(r8) - stwu r0,4(r7) - bdnz 1b - b 4f - -2: slwi r0,r0,2 - add r8,r4,r0 - add r7,r3,r0 -3: lwzu r0,-4(r8) - stwu r0,-4(r7) - bdnz 3b - -/* - * Now flush the cache: note that we must start from a cache aligned - * address. Otherwise we might miss one cache line. - */ -4: cmpwi r6,0 - add r5,r3,r5 - beq 7f /* Always flush prefetch queue in any case */ - subi r0,r6,1 - andc r3,r3,r0 - mfspr r7,HID0 /* don't do dcbst if dcache is disabled */ - rlwinm r7,r7,HID0_DCE_BITPOS+1,31,31 - cmpwi r7,0 - beq 9f - mr r4,r3 -5: dcbst 0,r4 - add r4,r4,r6 - cmplw r4,r5 - blt 5b - sync /* Wait for all dcbst to complete on bus */ -9: mfspr r7,HID0 /* don't do icbi if icache is disabled */ - rlwinm r7,r7,HID0_ICE_BITPOS+1,31,31 - cmpwi r7,0 - beq 7f - mr r4,r3 -6: icbi 0,r4 - add r4,r4,r6 - cmplw r4,r5 - blt 6b -7: sync /* Wait for all icbi to complete on bus */ - isync - -/* - * We are done. Do not return, instead branch to second part of board - * initialization, now running from RAM. - */ - - addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET - mtlr r0 - blr - -in_ram: - - /* - * Relocation Function, r12 point to got2+0x8000 - * - * Adjust got2 pointers, no need to check for 0, this code - * already puts a few entries in the table. - */ - li r0,__got2_entries@sectoff@l - la r3,GOT(_GOT2_TABLE_) - lwz r11,GOT(_GOT2_TABLE_) - mtctr r0 - sub r11,r3,r11 - addi r3,r3,-4 -1: lwzu r0,4(r3) - cmpwi r0,0 - beq- 2f - add r0,r0,r11 - stw r0,0(r3) -2: bdnz 1b - - /* - * Now adjust the fixups and the pointers to the fixups - * in case we need to move ourselves again. - */ - li r0,__fixup_entries@sectoff@l - lwz r3,GOT(_FIXUP_TABLE_) - cmpwi r0,0 - mtctr r0 - addi r3,r3,-4 - beq 4f -3: lwzu r4,4(r3) - lwzux r0,r4,r11 - cmpwi r0,0 - add r0,r0,r11 - stw r4,0(r3) - beq- 5f - stw r0,0(r4) -5: bdnz 3b -4: -clear_bss: - /* - * Now clear BSS segment - */ - lwz r3,GOT(__bss_start) - lwz r4,GOT(__bss_end) - - cmplw 0, r3, r4 - beq 6f - - li r0, 0 -5: - stw r0, 0(r3) - addi r3, r3, 4 - cmplw 0, r3, r4 - bne 5b -6: - - mr r3, r9 /* Global Data pointer */ - mr r4, r10 /* Destination Address */ - bl board_init_r - - /* - * Copy exception vector code to low memory - * - * r3: dest_addr - * r7: source address, r8: end address, r9: target address - */ - .globl trap_init -trap_init: - mflr r4 /* save link register */ - GET_GOT - lwz r7, GOT(_start) - lwz r8, GOT(_end_of_vectors) - - li r9, 0x100 /* reset vector always at 0x100 */ - - cmplw 0, r7, r8 - bgelr /* return if r7>=r8 - just in case */ -1: - lwz r0, 0(r7) - stw r0, 0(r9) - addi r7, r7, 4 - addi r9, r9, 4 - cmplw 0, r7, r8 - bne 1b - - /* - * relocate `hdlr' and `int_return' entries - */ - li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET - li r8, Alignment - _start + EXC_OFF_SYS_RESET -2: - bl trap_reloc - addi r7, r7, 0x100 /* next exception vector */ - cmplw 0, r7, r8 - blt 2b - - li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET - bl trap_reloc - - li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET - bl trap_reloc - - li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET - li r8, SystemCall - _start + EXC_OFF_SYS_RESET -3: - bl trap_reloc - addi r7, r7, 0x100 /* next exception vector */ - cmplw 0, r7, r8 - blt 3b - - li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET - li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET -4: - bl trap_reloc - addi r7, r7, 0x100 /* next exception vector */ - cmplw 0, r7, r8 - blt 4b - - mfmsr r3 /* now that the vectors have */ - lis r7, MSR_IP@h /* relocated into low memory */ - ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */ - andc r3, r3, r7 /* (if it was on) */ - SYNC /* Some chip revs need this... */ - mtmsr r3 - SYNC - - mtlr r4 /* restore link register */ - blr diff --git a/arch/powerpc/cpu/mpc8220/traps.c b/arch/powerpc/cpu/mpc8220/traps.c deleted file mode 100644 index 19d6cb57c..000000000 --- a/arch/powerpc/cpu/mpc8220/traps.c +++ /dev/null @@ -1,231 +0,0 @@ -/* - * linux/arch/powerpc/kernel/traps.c - * - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * Modified by Cort Dougan (cort@cs.nmt.edu) - * and Paul Mackerras (paulus@cs.anu.edu.au) - * fixed Machine Check Reasons by Reinhard Meyer (r.meyer@emk-elektronik.de) - * - * (C) Copyright 2000-2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * This file handles the architecture-dependent parts of hardware exceptions - */ - -#include <common.h> -#include <command.h> -#include <kgdb.h> -#include <asm/processor.h> - -/* Returns 0 if exception not found and fixup otherwise. */ -extern unsigned long search_exception_table(unsigned long); - -/* THIS NEEDS CHANGING to use the board info structure. -*/ -#define END_OF_MEM 0x02000000 - -/* - * Trap & Exception support - */ - -static void print_backtrace(unsigned long *sp) -{ - int cnt = 0; - unsigned long i; - - printf("Call backtrace: "); - while (sp) { - if ((uint) sp > END_OF_MEM) - break; - - i = sp[1]; - if (cnt++ % 7 == 0) - printf("\n"); - printf("%08lX ", i); - if (cnt > 32) - break; - sp = (unsigned long *) *sp; - } - printf("\n"); -} - -void show_regs(struct pt_regs *regs) -{ - int i; - - printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", - regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); - printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", - regs->msr, - regs->msr & MSR_EE ? 1 : 0, regs->msr & MSR_PR ? 1 : 0, - regs->msr & MSR_FP ? 1 : 0, regs->msr & MSR_ME ? 1 : 0, - regs->msr & MSR_IR ? 1 : 0, regs->msr & MSR_DR ? 1 : 0); - - printf("\n"); - for (i = 0; i < 32; i++) { - if ((i % 8) == 0) { - printf("GPR%02d: ", i); - } - - printf("%08lX ", regs->gpr[i]); - if ((i % 8) == 7) { - printf("\n"); - } - } -} - - -static void _exception(int signr, struct pt_regs *regs) -{ - show_regs(regs); - print_backtrace((unsigned long *) regs->gpr[1]); - panic("Exception in kernel pc %lx signal %d", regs->nip, signr); -} - -void MachineCheckException(struct pt_regs *regs) -{ - unsigned long fixup = search_exception_table(regs->nip); - - /* Probing PCI using config cycles cause this exception - * when a device is not present. Catch it and return to - * the PCI exception handler. - */ - if (fixup) { - regs->nip = fixup; - return; - } -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - - printf("Machine check in kernel mode.\n"); - printf("Caused by (from msr): "); - printf("regs %p ", regs); - /* refer to 603e Manual (MPC603EUM/AD), chapter 4.5.2.1 */ - switch (regs->msr & 0x000F0000) { - case (0x80000000 >> 12): - printf("Machine check signal - probably due to mm fault\n" - "with mmu off\n"); - break; - case (0x80000000 >> 13): - printf("Transfer error ack signal\n"); - break; - case (0x80000000 >> 14): - printf("Data parity signal\n"); - break; - case (0x80000000 >> 15): - printf("Address parity signal\n"); - break; - default: - printf("Unknown values in msr\n"); - } - show_regs(regs); - print_backtrace((unsigned long *) regs->gpr[1]); - panic("machine check"); -} - -void AlignmentException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs(regs); - print_backtrace((unsigned long *) regs->gpr[1]); - panic("Alignment Exception"); -} - -void ProgramCheckException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs(regs); - print_backtrace((unsigned long *) regs->gpr[1]); - panic("Program Check Exception"); -} - -void SoftEmuException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs(regs); - print_backtrace((unsigned long *) regs->gpr[1]); - panic("Software Emulation Exception"); -} - - -void UnknownException(struct pt_regs *regs) -{ -#if defined(CONFIG_CMD_KGDB) - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", - regs->nip, regs->msr, regs->trap); - _exception(0, regs); -} - -#if defined(CONFIG_CMD_BEDBUG) -extern void do_bedbug_breakpoint(struct pt_regs *); -#endif - -void DebugException(struct pt_regs *regs) -{ - - printf("Debugger trap at @ %lx\n", regs->nip); - show_regs(regs); -#if defined(CONFIG_CMD_BEDBUG) - do_bedbug_breakpoint(regs); -#endif -} - -/* Probe an address by reading. If not present, return -1, otherwise - * return 0. - */ -int addr_probe(uint *addr) -{ -#if 0 - int retval; - - __asm__ __volatile__ ("1: lwz %0,0(%1)\n" - " eieio\n" - " li %0,0\n" - "2:\n" - ".section .fixup,\"ax\"\n" - "3: li %0,-1\n" - " b 2b\n" - ".section __ex_table,\"a\"\n" - " .align 2\n" - " .long 1b,3b\n" - ".text":"=r" (retval):"r" (addr)); - - return (retval); -#endif - return 0; -} diff --git a/arch/powerpc/cpu/mpc8220/u-boot.lds b/arch/powerpc/cpu/mpc8220/u-boot.lds deleted file mode 100644 index dc63d2081..000000000 --- a/arch/powerpc/cpu/mpc8220/u-boot.lds +++ /dev/null @@ -1,91 +0,0 @@ -/* - * (C) Copyright 2003-2010 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -OUTPUT_ARCH(powerpc) - -SECTIONS -{ - /* Read-only sections, merged into text segment: */ - .text : - { - arch/powerpc/cpu/mpc8220/start.o (.text*) - *(.text*) - . = ALIGN(16); - *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) - } - - /* Read-write section, merged into data segment: */ - . = (. + 0x0FFF) & 0xFFFFF000; - _erotext = .; - PROVIDE (erotext = .); - .reloc : - { - _GOT2_TABLE_ = .; - KEEP(*(.got2)) - KEEP(*(.got)) - PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4); - _FIXUP_TABLE_ = .; - KEEP(*(.fixup)) - } - __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1; - __fixup_entries = (. - _FIXUP_TABLE_) >> 2; - - .data : - { - *(.data*) - *(.sdata*) - } - _edata = .; - PROVIDE (edata = .); - - . = .; - - . = ALIGN(4); - .u_boot_list : { - KEEP(*(SORT(.u_boot_list*))); - } - - - . = .; - __start___ex_table = .; - __ex_table : { *(__ex_table) } - __stop___ex_table = .; - - . = ALIGN(4096); - __init_begin = .; - .text.init : { *(.text.init) } - .data.init : { *(.data.init) } - . = ALIGN(4096); - __init_end = .; - - __bss_start = .; - .bss (NOLOAD) : - { - *(.bss*) - *(.sbss*) - *(COMMON) - . = ALIGN(4); - } - __bss_end = . ; - PROVIDE (end = .); -} diff --git a/arch/powerpc/cpu/mpc8220/uart.c b/arch/powerpc/cpu/mpc8220/uart.c deleted file mode 100644 index 772528f82..000000000 --- a/arch/powerpc/cpu/mpc8220/uart.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * (C) Copyright 2004, Freescale, Inc - * TsiChung Liew, Tsi-Chung.Liew@freescale.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ - -/* - * Minimal serial functions needed to use one of the PSC ports - * as serial console interface. - */ - -#include <common.h> -#include <mpc8220.h> -#include <serial.h> -#include <linux/compiler.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define PSC_BASE MMAP_PSC1 - -#if defined(CONFIG_PSC_CONSOLE) -static int mpc8220_serial_init(void) -{ - volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; - u32 counter; - - /* write to SICR: SIM2 = uart mode,dcd does not affect rx */ - psc->cr = 0; - psc->ipcr_acr = 0; - psc->isr_imr = 0; - - /* write to CSR: RX/TX baud rate from timers */ - psc->sr_csr = 0xdd000000; - - psc->mr1_2 = PSC_MR1_BITS_CHAR_8 | PSC_MR1_NO_PARITY | PSC_MR2_STOP_BITS_1; - - /* Setting up BaudRate */ - counter = ((gd->bus_clk / gd->baudrate)) >> 5; - counter++; - - /* write to CTUR: divide counter upper byte */ - psc->ctur = ((counter & 0xff00) << 16); - /* write to CTLR: divide counter lower byte */ - psc->ctlr = ((counter & 0x00ff) << 24); - - psc->cr = PSC_CR_RST_RX_CMD; - psc->cr = PSC_CR_RST_TX_CMD; - psc->cr = PSC_CR_RST_ERR_STS_CMD; - psc->cr = PSC_CR_RST_BRK_INT_CMD; - psc->cr = PSC_CR_RST_MR_PTR_CMD; - - psc->cr = PSC_CR_RX_ENABLE | PSC_CR_TX_ENABLE; - return (0); -} - -static void mpc8220_serial_putc(const char c) -{ - volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; - - if (c == '\n') - serial_putc ('\r'); - - /* Wait for last character to go. */ - while (!(psc->sr_csr & PSC_SR_TXRDY)); - - psc->xmitbuf[0] = c; -} - -static int mpc8220_serial_getc(void) -{ - volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; - - /* Wait for a character to arrive. */ - while (!(psc->sr_csr & PSC_SR_RXRDY)); - return psc->xmitbuf[2]; -} - -static int mpc8220_serial_tstc(void) -{ - volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; - - return (psc->sr_csr & PSC_SR_RXRDY); -} - -static void mpc8220_serial_setbrg(void) -{ - volatile psc8220_t *psc = (psc8220_t *) PSC_BASE; - u32 counter; - - counter = ((gd->bus_clk / gd->baudrate)) >> 5; - counter++; - - /* write to CTUR: divide counter upper byte */ - psc->ctur = ((counter & 0xff00) << 16); - /* write to CTLR: divide counter lower byte */ - psc->ctlr = ((counter & 0x00ff) << 24); - - psc->cr = PSC_CR_RST_RX_CMD; - psc->cr = PSC_CR_RST_TX_CMD; - - psc->cr = PSC_CR_RX_ENABLE | PSC_CR_TX_ENABLE; -} - -static struct serial_device mpc8220_serial_drv = { - .name = "mpc8220_serial", - .start = mpc8220_serial_init, - .stop = NULL, - .setbrg = mpc8220_serial_setbrg, - .putc = mpc8220_serial_putc, - .puts = default_serial_puts, - .getc = mpc8220_serial_getc, - .tstc = mpc8220_serial_tstc, -}; - -void mpc8220_serial_initialize(void) -{ - serial_register(&mpc8220_serial_drv); -} - -__weak struct serial_device *default_serial_console(void) -{ - return &mpc8220_serial_drv; -} -#endif /* CONFIG_PSC_CONSOLE */ |