diff options
author | Ying Zhang <b40530@freescale.com> | 2013-09-06 13:30:56 +0400 |
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committer | York Sun <yorksun@freescale.com> | 2013-10-17 03:13:12 +0400 |
commit | 3e6e69834a31055054b7e5bf5b1ff91c619120e8 (patch) | |
tree | 35380a2cb020089f111ce36dcc162ec56054e39f /board/freescale/p1_p2_rdb_pc/spl.c | |
parent | ffee1dde3c4cb2721c56c78e0360affec1c23d3f (diff) | |
download | u-boot-3e6e69834a31055054b7e5bf5b1ff91c619120e8.tar.xz |
powerpc: p1_p2_rdb_pc: Enable p1_p2_rdb_pc to boot from SD Card with SPL
Enable p1_p2_rdb_pc to start from eSDHC with SPL.
Signed-off-by: Ying Zhang <b40530@freescale.com>
Diffstat (limited to 'board/freescale/p1_p2_rdb_pc/spl.c')
-rw-r--r-- | board/freescale/p1_p2_rdb_pc/spl.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/board/freescale/p1_p2_rdb_pc/spl.c b/board/freescale/p1_p2_rdb_pc/spl.c new file mode 100644 index 0000000000..5b8e0ffa6d --- /dev/null +++ b/board/freescale/p1_p2_rdb_pc/spl.c @@ -0,0 +1,98 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <ns16550.h> +#include <malloc.h> +#include <mmc.h> +#include <nand.h> +#include <i2c.h> +#include <fsl_esdhc.h> + +DECLARE_GLOBAL_DATA_PTR; + +static const u32 sysclk_tbl[] = { + 66666000, 7499900, 83332500, 8999900, + 99999000, 11111000, 12499800, 13333200 +}; + +ulong get_effective_memsize(void) +{ + return CONFIG_SYS_L2_SIZE; +} + +void board_init_f(ulong bootflag) +{ + u32 plat_ratio, bus_clk; + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + + console_init_f(); + + /* Set pmuxcr to allow both i2c1 and i2c2 */ + setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000); + setbits_be32(&gur->pmuxcr, + in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA); + + /* Read back the register to synchronize the write. */ + in_be32(&gur->pmuxcr); + + /* initialize selected port with appropriate baud rate */ + plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; + plat_ratio >>= 1; + bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio; + gd->bus_clk = bus_clk; + + NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, + bus_clk / 16 / CONFIG_BAUDRATE); +#ifdef CONFIG_SPL_MMC_BOOT + puts("\nSD boot...\n"); +#endif + + /* copy code to RAM and jump to it - this should not return */ + /* NOTE - code has to be copied out of NAND buffer before + * other blocks can be read. + */ + relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE); +} + +void board_init_r(gd_t *gd, ulong dest_addr) +{ + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *)CONFIG_SPL_GD_ADDR; + bd_t *bd; + + memset(gd, 0, sizeof(gd_t)); + bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t)); + memset(bd, 0, sizeof(bd_t)); + gd->bd = bd; + bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR; + bd->bi_memsize = CONFIG_SYS_L2_SIZE; + + probecpu(); + get_clocks(); + mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR, + CONFIG_SPL_RELOC_MALLOC_SIZE); + + env_init(); +#ifdef CONFIG_SPL_MMC_BOOT + mmc_initialize(bd); +#endif + /* relocate environment function pointers etc. */ + env_relocate(); + +#ifdef CONFIG_SYS_I2C + i2c_init_all(); +#else + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); +#endif + + gd->ram_size = initdram(0); + puts("Second program loader running in sram...\n"); + +#ifdef CONFIG_SPL_MMC_BOOT + mmc_boot(); +#endif +} |