From b19e288f47ea7db98eefbebdda0fe0fad66d845c Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Fri, 18 Apr 2014 16:43:39 +0800 Subject: board/t208xqds: Add support of 2-stage NAND/SPI/SD boot Add support of 2-stage NAND/SPI/SD boot loader using SPL framework. PBL initializes the internal CPC-SRAM and copy SPL(160K) to it, SPL further initializes DDR using SPD and environment and copy u-boot(768 KB) from SPI/SD/NAND to DDR, finally SPL transfers control to u-boot. Signed-off-by: Shengzhou Liu [York Sun: fix boards.cfg for T2081QDS_SDCARD and _SPIFLASH] Reviewed-by: York Sun --- board/freescale/t208xqds/spl.c | 137 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 137 insertions(+) create mode 100644 board/freescale/t208xqds/spl.c (limited to 'board/freescale/t208xqds/spl.c') diff --git a/board/freescale/t208xqds/spl.c b/board/freescale/t208xqds/spl.c new file mode 100644 index 00000000000..a71c6171218 --- /dev/null +++ b/board/freescale/t208xqds/spl.c @@ -0,0 +1,137 @@ +/* Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "../common/qixis.h" +#include "t208xqds_qixis.h" + +DECLARE_GLOBAL_DATA_PTR; + +phys_size_t get_effective_memsize(void) +{ + return CONFIG_SYS_L3_SIZE; +} + +unsigned long get_board_sys_clk(void) +{ + u8 sysclk_conf = QIXIS_READ(brdcfg[1]); + + switch (sysclk_conf & 0x0F) { + case QIXIS_SYSCLK_83: + return 83333333; + case QIXIS_SYSCLK_100: + return 100000000; + case QIXIS_SYSCLK_125: + return 125000000; + case QIXIS_SYSCLK_133: + return 133333333; + case QIXIS_SYSCLK_150: + return 150000000; + case QIXIS_SYSCLK_160: + return 160000000; + case QIXIS_SYSCLK_166: + return 166666666; + } + return 66666666; +} + +unsigned long get_board_ddr_clk(void) +{ + u8 ddrclk_conf = QIXIS_READ(brdcfg[1]); + + switch ((ddrclk_conf & 0x30) >> 4) { + case QIXIS_DDRCLK_100: + return 100000000; + case QIXIS_DDRCLK_125: + return 125000000; + case QIXIS_DDRCLK_133: + return 133333333; + } + return 66666666; +} + +void board_init_f(ulong bootflag) +{ + u32 plat_ratio, sys_clk, ccb_clk; + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + + /* Memcpy existing GD at CONFIG_SPL_GD_ADDR */ + memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t)); + + /* Update GD pointer */ + gd = (gd_t *)(CONFIG_SPL_GD_ADDR); + + console_init_f(); + + /* initialize selected port with appropriate baud rate */ + sys_clk = get_board_sys_clk(); + plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f; + ccb_clk = sys_clk * plat_ratio / 2; + + NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, + ccb_clk / 16 / CONFIG_BAUDRATE); + +#if defined(CONFIG_SPL_MMC_BOOT) + puts("\nSD boot...\n"); +#elif defined(CONFIG_SPL_SPI_BOOT) + puts("\nSPI boot...\n"); +#elif defined(CONFIG_SPL_NAND_BOOT) + puts("\nNAND boot...\n"); +#endif + + relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0); +} + +void board_init_r(gd_t *gd, ulong dest_addr) +{ + bd_t *bd; + + bd = (bd_t *)(gd + sizeof(gd_t)); + memset(bd, 0, sizeof(bd_t)); + gd->bd = bd; + bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR; + bd->bi_memsize = CONFIG_SYS_L3_SIZE; + + probecpu(); + get_clocks(); + mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR, + CONFIG_SPL_RELOC_MALLOC_SIZE); + +#ifdef CONFIG_SPL_NAND_BOOT + nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, + (uchar *)CONFIG_ENV_ADDR); +#endif +#ifdef CONFIG_SPL_MMC_BOOT + mmc_initialize(bd); + mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, + (uchar *)CONFIG_ENV_ADDR); +#endif +#ifdef CONFIG_SPL_SPI_BOOT + spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, + (uchar *)CONFIG_ENV_ADDR); +#endif + + gd->env_addr = (ulong)(CONFIG_ENV_ADDR); + gd->env_valid = 1; + + i2c_init_all(); + + gd->ram_size = initdram(0); + +#ifdef CONFIG_SPL_MMC_BOOT + mmc_boot(); +#elif defined(CONFIG_SPL_SPI_BOOT) + spi_boot(); +#elif defined(CONFIG_SPL_NAND_BOOT) + nand_boot(); +#endif +} -- cgit v1.2.3