diff options
| -rw-r--r-- | board/freescale/common/Makefile | 1 | ||||
| -rw-r--r-- | board/freescale/common/ngpixis.c | 136 | ||||
| -rw-r--r-- | board/freescale/common/ngpixis.h | 57 | ||||
| -rw-r--r-- | board/freescale/p2020ds/p2020ds.c | 55 | ||||
| -rw-r--r-- | include/configs/P2020DS.h | 62 |
5 files changed, 222 insertions, 89 deletions
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile index 02a824d9f..620eb16d4 100644 --- a/board/freescale/common/Makefile +++ b/board/freescale/common/Makefile @@ -33,6 +33,7 @@ COBJS-${CONFIG_FSL_CADMUS} += cadmus.o COBJS-${CONFIG_FSL_VIA} += cds_via.o COBJS-${CONFIG_FSL_DIU_FB} += fsl_diu_fb.o fsl_logo_bmp.o COBJS-${CONFIG_FSL_PIXIS} += pixis.o +COBJS-${CONFIG_FSL_NGPIXIS} += ngpixis.o COBJS-${CONFIG_PQ_MDS_PIB} += pq-mds-pib.o COBJS-${CONFIG_ID_EEPROM} += sys_eeprom.o COBJS-${CONFIG_FSL_SGMII_RISER} += sgmii_riser.o diff --git a/board/freescale/common/ngpixis.c b/board/freescale/common/ngpixis.c new file mode 100644 index 000000000..bb6794e85 --- /dev/null +++ b/board/freescale/common/ngpixis.c @@ -0,0 +1,136 @@ +/** + * Copyright 2010 Freescale Semiconductor + * Author: Timur Tabi <timur@freescale.com> + * + * 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 file provides support for the ngPIXIS, a board-specific FPGA used on + * some Freescale reference boards. + * + * A "switch" is black rectangular block on the motherboard. It contains + * eight "bits". The ngPIXIS has a set of memory-mapped registers (SWx) that + * shadow the actual physical switches. There is also another set of + * registers (ENx) that tell the ngPIXIS which bits of SWx should actually be + * used to override the values of the bits in the physical switches. + * + * The following macros need to be defined: + * + * PIXIS_BASE - The virtual address of the base of the PIXIS register map + * + * PIXIS_LBMAP_SWITCH - The switch number (i.e. the "x" in "SWx"). This value + * is used in the PIXIS_SW() macro to determine which offset in + * the PIXIS register map corresponds to the physical switch that controls + * the boot bank. + * + * PIXIS_LBMAP_MASK - A bit mask the defines which bits in SWx to use. + * + * PIXIS_LBMAP_SHIFT - The shift value that corresponds to PIXIS_LBMAP_MASK. + * + * PIXIS_LBMAP_ALTBANK - The value to program into SWx to tell the ngPIXIS to + * boot from the alternate bank. + */ + +#include <common.h> +#include <command.h> +#include <watchdog.h> +#include <asm/cache.h> +#include <asm/io.h> + +#include "ngpixis.h" + +/* + * Reset the board. This ignores the ENx registers. + */ +void pixis_reset(void) +{ + out_8(&pixis->rst, 0); + + while (1); +} + +/* + * Reset the board. Like pixis_reset(), but it honors the ENx registers. + */ +void pixis_bank_reset(void) +{ + out_8(&pixis->vctl, 0); + out_8(&pixis->vctl, 1); + + while (1); +} + +/** + * Set the boot bank to the power-on default bank + */ +void clear_altbank(void) +{ + /* Tell the ngPIXIS to use this the bits in the physical switch for the + * boot bank value, instead of the SWx register. We need to be careful + * only to set the bits in SWx that correspond to the boot bank. + */ + clrbits_8(&PIXIS_EN(PIXIS_LBMAP_SWITCH), PIXIS_LBMAP_MASK); +} + +/** + * Set the boot bank to the alternate bank + */ +void set_altbank(void) +{ + /* Program the alternate bank number into the SWx register. + */ + clrsetbits_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH), PIXIS_LBMAP_MASK, + PIXIS_LBMAP_ALTBANK); + + /* Tell the ngPIXIS to use this the bits in the SWx register for the + * boot bank value, instead of the physical switch. We need to be + * careful only to set the bits in SWx that correspond to the boot bank. + */ + setbits_8(&PIXIS_EN(PIXIS_LBMAP_SWITCH), PIXIS_LBMAP_MASK); +} + + +int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + unsigned int i; + char *p_altbank = NULL; + char *unknown_param = NULL; + + /* No args is a simple reset request. + */ + if (argc <= 1) + pixis_reset(); + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "altbank") == 0) { + p_altbank = argv[i]; + continue; + } + + unknown_param = argv[i]; + } + + if (unknown_param) { + printf("Invalid option: %s\n", unknown_param); + return 1; + } + + if (p_altbank) + set_altbank(); + else + clear_altbank(); + + pixis_bank_reset(); + + /* Shouldn't be reached. */ + return 0; +} + +U_BOOT_CMD( + pixis_reset, CONFIG_SYS_MAXARGS, 1, pixis_reset_cmd, + "Reset the board using the FPGA sequencer", + "- hard reset to default bank\n" + "pixis_reset altbank - reset to alternate bank\n" + ); diff --git a/board/freescale/common/ngpixis.h b/board/freescale/common/ngpixis.h new file mode 100644 index 000000000..284d044c8 --- /dev/null +++ b/board/freescale/common/ngpixis.h @@ -0,0 +1,57 @@ +/** + * Copyright 2010 Freescale Semiconductor + * Author: Timur Tabi <timur@freescale.com> + * + * 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 file provides support for the ngPIXIS, a board-specific FPGA used on + * some Freescale reference boards. + */ + +/* ngPIXIS register set. Hopefully, this won't change too much over time. + * Feel free to add board-specific #ifdefs where necessary. + */ +typedef struct ngpixis { + u8 id; + u8 arch; + u8 scver; + u8 csr; + u8 rst; + u8 res1; + u8 aux; + u8 spd; + u8 brdcfg0; + u8 dma; + u8 addr; + u8 res2[2]; + u8 data; + u8 led; + u8 res3; + u8 vctl; + u8 vstat; + u8 vcfgen0; + u8 res4; + u8 ocmcsr; + u8 ocmmsg; + u8 gmdbg; + u8 res5[2]; + u8 sclk[3]; + u8 dclk[3]; + u8 watch; + struct { + u8 sw; + u8 en; + } s[8]; +} ngpixis_t __attribute__ ((aligned(1))); + +/* Pointer to the PIXIS register set */ +#define pixis ((ngpixis_t *)PIXIS_BASE) + +/* The PIXIS SW register that corresponds to board switch X, where x >= 1 */ +#define PIXIS_SW(x) (pixis->s[(x) - 1].sw) + +/* The PIXIS EN register that corresponds to board switch X, where x >= 1 */ +#define PIXIS_EN(x) (pixis->s[(x) - 1].en) diff --git a/board/freescale/p2020ds/p2020ds.c b/board/freescale/p2020ds/p2020ds.c index 664135cf7..f0ff209c0 100644 --- a/board/freescale/p2020ds/p2020ds.c +++ b/board/freescale/p2020ds/p2020ds.c @@ -38,6 +38,7 @@ #include <asm/mp.h> #include <netdev.h> +#include "../common/ngpixis.h" #include "../common/sgmii_riser.h" DECLARE_GLOBAL_DATA_PTR; @@ -46,30 +47,24 @@ phys_size_t fixed_sdram(void); int checkboard(void) { - u8 sw7; - u8 *pixis_base = (u8 *)PIXIS_BASE; + u8 sw; puts("Board: P2020DS "); #ifdef CONFIG_PHYS_64BIT puts("(36-bit addrmap) "); #endif - printf("Sys ID: 0x%02x, " - "Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ", - in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER), - in_8(pixis_base + PIXIS_PVER)); + printf("Sys ID: 0x%02x, Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ", + in_8(&pixis->id), in_8(&pixis->arch), in_8(&pixis->scver)); - sw7 = in_8(pixis_base + PIXIS_SW(7)); - switch ((sw7 & PIXIS_SW7_LBMAP) >> 6) { - case 0: - case 1: - printf ("vBank: %d\n", ((sw7 & PIXIS_SW7_VBANK) >> 4)); - break; - case 2: - case 3: - puts ("Promjet\n"); - break; - } + sw = in_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH)); + sw = (sw & PIXIS_LBMAP_MASK) >> PIXIS_LBMAP_SHIFT; + + if (sw < 0x8) + /* The lower two bits are the actual vbank number */ + printf("vBank: %d\n", sw & 3); + else + puts("Promjet\n"); return 0; } @@ -370,30 +365,22 @@ unsigned long get_board_ddr_clk(ulong dummy) return gd->mem_clk; } -unsigned long -calculate_board_sys_clk(ulong dummy) +unsigned long calculate_board_sys_clk(ulong dummy) { ulong val; - u8 *pixis_base = (u8 *)PIXIS_BASE; - val = ics307_clk_freq( - in_8(pixis_base + PIXIS_VSYSCLK0), - in_8(pixis_base + PIXIS_VSYSCLK1), - in_8(pixis_base + PIXIS_VSYSCLK2)); + val = ics307_clk_freq(in_8(&pixis->sclk[0]), in_8(&pixis->sclk[1]), + in_8(&pixis->sclk[2])); debug("sysclk val = %lu\n", val); return val; } -unsigned long -calculate_board_ddr_clk(ulong dummy) +unsigned long calculate_board_ddr_clk(ulong dummy) { ulong val; - u8 *pixis_base = (u8 *)PIXIS_BASE; - val = ics307_clk_freq( - in_8(pixis_base + PIXIS_VDDRCLK0), - in_8(pixis_base + PIXIS_VDDRCLK1), - in_8(pixis_base + PIXIS_VDDRCLK2)); + val = ics307_clk_freq(in_8(&pixis->dclk[0]), in_8(&pixis->dclk[1]), + in_8(&pixis->dclk[2])); debug("ddrclk val = %lu\n", val); return val; } @@ -402,9 +389,8 @@ unsigned long get_board_sys_clk(ulong dummy) { u8 i; ulong val = 0; - u8 *pixis_base = (u8 *)PIXIS_BASE; - i = in_8(pixis_base + PIXIS_SPD); + i = in_8(&pixis->spd); i &= 0x07; switch (i) { @@ -441,9 +427,8 @@ unsigned long get_board_ddr_clk(ulong dummy) { u8 i; ulong val = 0; - u8 *pixis_base = (u8 *)PIXIS_BASE; - i = in_8(pixis_base + PIXIS_SPD); + i = in_8(&pixis->spd); i &= 0x38; i >>= 3; diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h index 30a5a319b..66be725c8 100644 --- a/include/configs/P2020DS.h +++ b/include/configs/P2020DS.h @@ -238,7 +238,9 @@ extern unsigned long calculate_board_ddr_clk(unsigned long dummy); #define CONFIG_BOARD_EARLY_INIT_R /* call board_early_init_r function */ -#define CONFIG_FSL_PIXIS 1 /* use common PIXIS code */ +#define CONFIG_FSL_NGPIXIS /* use common ngPIXIS code */ + +#ifdef CONFIG_FSL_NGPIXIS #define PIXIS_BASE 0xffdf0000 /* PIXIS registers */ #ifdef CONFIG_PHYS_64BIT #define PIXIS_BASE_PHYS 0xfffdf0000ull @@ -249,59 +251,11 @@ extern unsigned long calculate_board_ddr_clk(unsigned long dummy); #define CONFIG_SYS_BR3_PRELIM (BR_PHYS_ADDR(PIXIS_BASE_PHYS) | BR_PS_8 | BR_V) #define CONFIG_SYS_OR3_PRELIM 0xffffeff7 /* 32KB but only 4k mapped */ -#define PIXIS_ID 0x0 /* Board ID at offset 0 */ -#define PIXIS_VER 0x1 /* Board version at offset 1 */ -#define PIXIS_PVER 0x2 /* PIXIS FPGA version at offset 2 */ -#define PIXIS_CSR 0x3 /* PIXIS General control/status register */ -#define PIXIS_RST 0x4 /* PIXIS Reset Control register */ -#define PIXIS_PWR 0x5 /* PIXIS Power status register */ -#define PIXIS_AUX 0x6 /* Auxiliary 1 register */ -#define PIXIS_SPD 0x7 /* Register for SYSCLK speed */ -#define PIXIS_AUX2 0x8 /* Auxiliary 2 register */ -#define PIXIS_VCTL 0x10 /* VELA Control Register */ -#define PIXIS_VSTAT 0x11 /* VELA Status Register */ -#define PIXIS_VCFGEN0 0x12 /* VELA Config Enable 0 */ -#define PIXIS_VCFGEN1 0x13 /* VELA Config Enable 1 */ -#define PIXIS_VCORE0 0x14 /* VELA VCORE0 Register */ -#define PIXIS_VBOOT 0x16 /* VELA VBOOT Register */ -#define PIXIS_VSPEED0 0x17 /* VELA VSpeed 0 */ -#define PIXIS_VSPEED1 0x18 /* VELA VSpeed 1 */ -#define PIXIS_VSPEED2 0x19 /* VELA VSpeed 2 */ -#define PIXIS_VSYSCLK0 0x19 /* VELA SYSCLK0 Register */ -#define PIXIS_VSYSCLK1 0x1A /* VELA SYSCLK1 Register */ -#define PIXIS_VSYSCLK2 0x1B /* VELA SYSCLK2 Register */ -#define PIXIS_VDDRCLK0 0x1C /* VELA DDRCLK0 Register */ -#define PIXIS_VDDRCLK1 0x1D /* VELA DDRCLK1 Register */ -#define PIXIS_VDDRCLK2 0x1E /* VELA DDRCLK2 Register */ - -#define PIXIS_VWATCH 0x24 /* Watchdog Register */ -#define PIXIS_LED 0x25 /* LED Register */ - -#define PIXIS_SW(x) 0x20 + (x - 1) * 2 -#define PIXIS_EN(x) 0x21 + (x - 1) * 2 -#define PIXIS_SW7_LBMAP 0xc0 /* SW7 - cfg_lbmap */ -#define PIXIS_SW7_VBANK 0x30 /* SW7 - cfg_vbank */ - -/* old pixis referenced names */ -#define PIXIS_VCLKH 0x19 /* VELA VCLKH register */ -#define PIXIS_VCLKL 0x1A /* VELA VCLKL register */ -#define CONFIG_SYS_PIXIS_VBOOT_MASK 0xc0 -#define PIXIS_VSPEED2_TSEC1SER 0x8 -#define PIXIS_VSPEED2_TSEC2SER 0x4 -#define PIXIS_VSPEED2_TSEC3SER 0x2 -#define PIXIS_VSPEED2_TSEC4SER 0x1 -#define PIXIS_VCFGEN1_TSEC1SER 0x20 -#define PIXIS_VCFGEN1_TSEC2SER 0x20 -#define PIXIS_VCFGEN1_TSEC3SER 0x20 -#define PIXIS_VCFGEN1_TSEC4SER 0x20 -#define PIXIS_VSPEED2_MASK (PIXIS_VSPEED2_TSEC1SER \ - | PIXIS_VSPEED2_TSEC2SER \ - | PIXIS_VSPEED2_TSEC3SER \ - | PIXIS_VSPEED2_TSEC4SER) -#define PIXIS_VCFGEN1_MASK (PIXIS_VCFGEN1_TSEC1SER \ - | PIXIS_VCFGEN1_TSEC2SER \ - | PIXIS_VCFGEN1_TSEC3SER \ - | PIXIS_VCFGEN1_TSEC4SER) +#define PIXIS_LBMAP_SWITCH 7 +#define PIXIS_LBMAP_MASK 0xf0 +#define PIXIS_LBMAP_SHIFT 4 +#define PIXIS_LBMAP_ALTBANK 0x20 +#endif #define CONFIG_SYS_INIT_RAM_LOCK 1 #define CONFIG_SYS_INIT_RAM_ADDR 0xffd00000 /* Initial L1 address */ |