diff options
Diffstat (limited to 'roms/u-boot/board/freescale/bsc9132qds/spl_minimal.c')
| -rw-r--r-- | roms/u-boot/board/freescale/bsc9132qds/spl_minimal.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/bsc9132qds/spl_minimal.c b/roms/u-boot/board/freescale/bsc9132qds/spl_minimal.c new file mode 100644 index 00000000..8f714319 --- /dev/null +++ b/roms/u-boot/board/freescale/bsc9132qds/spl_minimal.c @@ -0,0 +1,116 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <ns16550.h> +#include <asm/io.h> +#include <nand.h> +#include <linux/compiler.h> +#include <asm/fsl_law.h> +#include <fsl_ddr_sdram.h> +#include <asm/global_data.h> + +DECLARE_GLOBAL_DATA_PTR; + +static void sdram_init(void) +{ + struct ccsr_ddr __iomem *ddr = + (struct ccsr_ddr __iomem *)CONFIG_SYS_FSL_DDR_ADDR; +#if CONFIG_DDR_CLK_FREQ == 100000000 + __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds); + __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config); + __raw_writel(CONFIG_SYS_DDR_CONTROL_800 | SDRAM_CFG_32_BE, &ddr->sdram_cfg); + __raw_writel(CONFIG_SYS_DDR_CONTROL_2_800, &ddr->sdram_cfg_2); + __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init); + + __raw_writel(CONFIG_SYS_DDR_TIMING_3_800, &ddr->timing_cfg_3); + __raw_writel(CONFIG_SYS_DDR_TIMING_0_800, &ddr->timing_cfg_0); + __raw_writel(CONFIG_SYS_DDR_TIMING_1_800, &ddr->timing_cfg_1); + __raw_writel(CONFIG_SYS_DDR_TIMING_2_800, &ddr->timing_cfg_2); + __raw_writel(CONFIG_SYS_DDR_MODE_1_800, &ddr->sdram_mode); + __raw_writel(CONFIG_SYS_DDR_MODE_2_800, &ddr->sdram_mode_2); + __raw_writel(CONFIG_SYS_DDR_INTERVAL_800, &ddr->sdram_interval); + __raw_writel(CONFIG_SYS_DDR_CLK_CTRL_800, &ddr->sdram_clk_cntl); + __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_800, &ddr->ddr_wrlvl_cntl); + + __raw_writel(CONFIG_SYS_DDR_TIMING_4_800, &ddr->timing_cfg_4); + __raw_writel(CONFIG_SYS_DDR_TIMING_5_800, &ddr->timing_cfg_5); + __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl); +#elif CONFIG_DDR_CLK_FREQ == 133000000 + __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds); + __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config); + __raw_writel(CONFIG_SYS_DDR_CONTROL_1333 | SDRAM_CFG_32_BE, &ddr->sdram_cfg); + __raw_writel(CONFIG_SYS_DDR_CONTROL_2_1333, &ddr->sdram_cfg_2); + __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init); + + __raw_writel(CONFIG_SYS_DDR_TIMING_3_1333, &ddr->timing_cfg_3); + __raw_writel(CONFIG_SYS_DDR_TIMING_0_1333, &ddr->timing_cfg_0); + __raw_writel(CONFIG_SYS_DDR_TIMING_1_1333, &ddr->timing_cfg_1); + __raw_writel(CONFIG_SYS_DDR_TIMING_2_1333, &ddr->timing_cfg_2); + __raw_writel(CONFIG_SYS_DDR_MODE_1_1333, &ddr->sdram_mode); + __raw_writel(CONFIG_SYS_DDR_MODE_2_1333, &ddr->sdram_mode_2); + __raw_writel(CONFIG_SYS_DDR_INTERVAL_1333, &ddr->sdram_interval); + __raw_writel(CONFIG_SYS_DDR_CLK_CTRL_1333, &ddr->sdram_clk_cntl); + __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_1333, &ddr->ddr_wrlvl_cntl); + + __raw_writel(CONFIG_SYS_DDR_TIMING_4_1333, &ddr->timing_cfg_4); + __raw_writel(CONFIG_SYS_DDR_TIMING_5_1333, &ddr->timing_cfg_5); + __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl); +#else + puts("Not a valid DDR Freq Found! Please Reset\n"); +#endif + asm volatile("sync;isync"); + udelay(500); + + /* Let the controller go */ + out_be32(&ddr->sdram_cfg, in_be32(&ddr->sdram_cfg) | SDRAM_CFG_MEM_EN); + + set_next_law(CONFIG_SYS_NAND_DDR_LAW, LAW_SIZE_1G, LAW_TRGT_IF_DDR_1); +} + +void board_init_f(ulong bootflag) +{ + u32 plat_ratio; + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + + /* initialize selected port with appropriate baud rate */ + plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; + plat_ratio >>= 1; + gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio; + + NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, + gd->bus_clk / 16 / CONFIG_BAUDRATE); + + puts("\nNAND boot... "); + + /* Initialize the DDR3 */ + sdram_init(); + + /* 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) +{ + nand_boot(); +} + +void putc(char c) +{ + if (c == '\n') + NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r'); + + NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c); +} + +void puts(const char *str) +{ + while (*str) + putc(*str++); +} |