Enable p1022ds to start from eSDHC with SPL. Signed-off-by: Ying Zhang <b40530@freescale.com> Acked-by: York Sun <yorksun@freescale.com>master
Ying Zhang
12 years ago
committed by
York Sun
parent
bb0dc1084f
commit
7c8eea59b8
@ -0,0 +1,110 @@ |
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/*
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* Copyright 2013 Freescale Semiconductor, Inc. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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* |
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*/ |
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#include <common.h> |
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#include <ns16550.h> |
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#include <malloc.h> |
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#include <mmc.h> |
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#include <nand.h> |
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#include <i2c.h> |
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#include "../common/ngpixis.h" |
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#include <fsl_esdhc.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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static const u32 sysclk_tbl[] = { |
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66666000, 7499900, 83332500, 8999900, |
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99999000, 11111000, 12499800, 13333200 |
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}; |
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ulong get_effective_memsize(void) |
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{ |
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return CONFIG_SYS_L2_SIZE; |
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} |
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void board_init_f(ulong bootflag) |
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{ |
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int px_spd; |
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u32 plat_ratio, sys_clk, bus_clk; |
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ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; |
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console_init_f(); |
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/* Set pmuxcr to allow both i2c1 and i2c2 */ |
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setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000); |
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setbits_be32(&gur->pmuxcr, |
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in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA); |
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/* Read back the register to synchronize the write. */ |
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in_be32(&gur->pmuxcr); |
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/* initialize selected port with appropriate baud rate */ |
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px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD)); |
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sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK]; |
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plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; |
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bus_clk = sys_clk * plat_ratio / 2; |
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NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, |
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bus_clk / 16 / CONFIG_BAUDRATE); |
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#ifdef CONFIG_SPL_MMC_BOOT |
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puts("\nSD boot...\n"); |
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#endif |
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/* copy code to RAM and jump to it - this should not return */ |
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/* NOTE - code has to be copied out of NAND buffer before
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* other blocks can be read. |
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*/ |
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relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE); |
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} |
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void board_init_r(gd_t *gd, ulong dest_addr) |
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{ |
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/* Pointer is writable since we allocated a register for it */ |
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gd = (gd_t *)CONFIG_SPL_GD_ADDR; |
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bd_t *bd; |
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memset(gd, 0, sizeof(gd_t)); |
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bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t)); |
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memset(bd, 0, sizeof(bd_t)); |
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gd->bd = bd; |
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bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR; |
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bd->bi_memsize = CONFIG_SYS_L2_SIZE; |
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probecpu(); |
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get_clocks(); |
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mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR, |
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CONFIG_SPL_RELOC_MALLOC_SIZE); |
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env_init(); |
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#ifdef CONFIG_SPL_MMC_BOOT |
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mmc_initialize(bd); |
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#endif |
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/* relocate environment function pointers etc. */ |
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env_relocate(); |
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i2c_init(CONFIG_SYS_FSL_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
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gd->ram_size = initdram(0); |
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puts("Second program loader running in sram...\n"); |
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#ifdef CONFIG_SPL_MMC_BOOT |
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mmc_boot(); |
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#endif |
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} |
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