diff options
Diffstat (limited to 'board/t3corp/t3corp.c')
| -rw-r--r-- | board/t3corp/t3corp.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/board/t3corp/t3corp.c b/board/t3corp/t3corp.c new file mode 100644 index 000000000..8ffa32169 --- /dev/null +++ b/board/t3corp/t3corp.c @@ -0,0 +1,193 @@ +/* + * (C) Copyright 2010 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * 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 <ppc440.h> +#include <libfdt.h> +#include <fdt_support.h> +#include <i2c.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/mmu.h> +#include <asm/4xx_pcie.h> +#include <asm/gpio.h> + +int board_early_init_f(void) +{ + /* + * Setup the interrupt controller polarities, triggers, etc. + */ + mtdcr(UIC0SR, 0xffffffff); /* clear all */ + mtdcr(UIC0ER, 0x00000000); /* disable all */ + mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */ + mtdcr(UIC0PR, 0xffffffff); /* per ref-board manual */ + mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */ + mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(UIC0SR, 0xffffffff); /* clear all */ + + mtdcr(UIC1SR, 0xffffffff); /* clear all */ + mtdcr(UIC1ER, 0x00000000); /* disable all */ + mtdcr(UIC1CR, 0x00000000); /* all non-critical */ + mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */ + mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */ + mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(UIC1SR, 0xffffffff); /* clear all */ + + mtdcr(UIC2SR, 0xffffffff); /* clear all */ + mtdcr(UIC2ER, 0x00000000); /* disable all */ + mtdcr(UIC2CR, 0x00000000); /* all non-critical */ + mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */ + mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */ + mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(UIC2SR, 0xffffffff); /* clear all */ + + mtdcr(UIC3SR, 0xffffffff); /* clear all */ + mtdcr(UIC3ER, 0x00000000); /* disable all */ + mtdcr(UIC3CR, 0x00000000); /* all non-critical */ + mtdcr(UIC3PR, 0xffffffff); /* per ref-board manual */ + mtdcr(UIC3TR, 0x00000000); /* per ref-board manual */ + mtdcr(UIC3VR, 0x00000000); /* int31 highest, base=0x000 */ + mtdcr(UIC3SR, 0xffffffff); /* clear all */ + + /* + * Configure PFC (Pin Function Control) registers + * enable GPIO 49-63 + * UART0: 4 pins + */ + mtsdr(SDR0_PFC0, 0x00007fff); + mtsdr(SDR0_PFC1, 0x00040000); + + /* Enable PCI host functionality in SDR0_PCI0 */ + mtsdr(SDR0_PCI0, 0xe0000000); + + mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */ + + /* Setup PLB4-AHB bridge based on the system address map */ + mtdcr(AHB_TOP, 0x8000004B); + mtdcr(AHB_BOT, 0x8000004B); + + return 0; +} + +int checkboard(void) +{ + char *s = getenv("serial#"); + + printf("Board: T3CORP"); + + if (s != NULL) { + puts(", serial# "); + puts(s); + } + putc('\n'); + + return 0; +} + +int board_early_init_r(void) +{ + /* + * T3CORP has 64MBytes of NOR flash (Spansion 29GL512), but the + * boot EBC mapping only supports a maximum of 16MBytes + * (4.ff00.0000 - 4.ffff.ffff). + * To solve this problem, the flash has to get remapped to another + * EBC address which accepts bigger regions: + * + * 0xfn00.0000 -> 4.cn00.0000 + */ + + /* Remap the NOR flash to 0xcn00.0000 ... 0xcfff.ffff */ + mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | EBC_BXCR_BS_64MB | + EBC_BXCR_BU_RW | EBC_BXCR_BW_16BIT); + + /* Remove TLB entry of boot EBC mapping */ + remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20); + + /* Add TLB entry for 0xfn00.0000 -> 0x4.cn00.0000 */ + program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, + CONFIG_SYS_FLASH_SIZE, TLB_WORD2_I_ENABLE); + + /* + * Now accessing of the whole 64Mbytes of NOR flash at virtual address + * 0xfc00.0000 is possible + */ + + /* + * Clear potential errors resulting from auto-calibration. + * If not done, then we could get an interrupt later on when + * exceptions are enabled. + */ + set_mcsr(get_mcsr()); + + return 0; +} + +int misc_init_r(void) +{ + u32 sdr0_srst1 = 0; + u32 eth_cfg; + + /* + * Set EMAC mode/configuration (GMII, SGMII, RGMII...). + * This is board specific, so let's do it here. + */ + mfsdr(SDR0_ETH_CFG, eth_cfg); + /* disable SGMII mode */ + eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE | + SDR0_ETH_CFG_SGMII1_ENABLE | + SDR0_ETH_CFG_SGMII0_ENABLE); + /* Set the for 2 RGMII mode */ + /* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */ + eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL; + eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL; + mtsdr(SDR0_ETH_CFG, eth_cfg); + + /* + * The AHB Bridge core is held in reset after power-on or reset + * so enable it now + */ + mfsdr(SDR0_SRST1, sdr0_srst1); + sdr0_srst1 &= ~SDR0_SRST1_AHB; + mtsdr(SDR0_SRST1, sdr0_srst1); + + return 0; +} + +int board_pcie_last(void) +{ + /* + * Only PCIe0 for now, PCIe1 hangs on this board + */ + return 0; +} + +/* + * Board specific WRDTR and CLKTR values used by the auto- + * calibration code (4xx_ibm_ddr2_autocalib.c). + */ +static struct sdram_timing board_scan_options[] = { + {1, 2}, + {-1, -1} +}; + +struct sdram_timing *ddr_scan_option(struct sdram_timing *default_val) +{ + return board_scan_options; +} |