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@ -23,16 +23,44 @@ |
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#include<common.h> |
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#include<config.h> |
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#include <asm/arch-exynos/dmc.h> |
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#include <asm/arch/clock.h> |
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#include <asm/arch/clk.h> |
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#include "clock_init.h" |
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/* Index into irom ptr table */ |
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enum index { |
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MMC_INDEX, |
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EMMC44_INDEX, |
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EMMC44_END_INDEX, |
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SPI_INDEX, |
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USB_INDEX, |
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}; |
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/* IROM Function Pointers Table */ |
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u32 irom_ptr_table[] = { |
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[MMC_INDEX] = 0x02020030, /* iROM Function Pointer-SDMMC boot */ |
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[EMMC44_INDEX] = 0x02020044, /* iROM Function Pointer-EMMC4.4 boot*/ |
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[EMMC44_END_INDEX] = 0x02020048,/* iROM Function Pointer
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-EMMC4.4 end boot operation */ |
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[SPI_INDEX] = 0x02020058, /* iROM Function Pointer-SPI boot */ |
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[USB_INDEX] = 0x02020070, /* iROM Function Pointer-USB boot*/ |
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}; |
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enum boot_mode { |
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BOOT_MODE_MMC = 4, |
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BOOT_MODE_SERIAL = 20, |
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BOOT_MODE_EMMC = 8, /* EMMC4.4 */ |
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/* Boot based on Operating Mode pin settings */ |
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BOOT_MODE_OM = 32, |
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BOOT_MODE_USB, /* Boot using USB download */ |
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}; |
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typedef u32 (*spi_copy_func_t)(u32 offset, u32 nblock, u32 dst); |
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typedef u32 (*usb_copy_func_t)(void); |
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void *get_irom_func(int index) |
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{ |
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return (void *)*(u32 *)irom_ptr_table[index]; |
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} |
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/*
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* Set/clear program flow prediction and return the previous state. |
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@ -55,13 +83,15 @@ static int config_branch_prediction(int set_cr_z) |
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*/ |
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void copy_uboot_to_ram(void) |
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{ |
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spi_copy_func_t spi_copy; |
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usb_copy_func_t usb_copy; |
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int is_cr_z_set; |
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unsigned int sec_boot_check; |
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enum boot_mode bootmode = BOOT_MODE_OM; |
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u32 (*copy_bl2)(u32, u32, u32); |
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u32 (*spi_copy)(u32 offset, u32 nblock, u32 dst); |
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u32 (*copy_bl2)(u32 offset, u32 nblock, u32 dst); |
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u32 (*copy_bl2_from_emmc)(u32 nblock, u32 dst); |
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void (*end_bootop_from_emmc)(void); |
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u32 (*usb_copy)(void); |
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/* Read iRAM location to check for secondary USB boot mode */ |
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sec_boot_check = readl(EXYNOS_IRAM_SECONDARY_BASE); |
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@ -73,14 +103,24 @@ void copy_uboot_to_ram(void) |
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switch (bootmode) { |
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case BOOT_MODE_SERIAL: |
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spi_copy = *(spi_copy_func_t *)EXYNOS_COPY_SPI_FNPTR_ADDR; |
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spi_copy = get_irom_func(SPI_INDEX); |
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spi_copy(SPI_FLASH_UBOOT_POS, CONFIG_BL2_SIZE, |
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CONFIG_SYS_TEXT_BASE); |
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CONFIG_SYS_TEXT_BASE); |
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break; |
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case BOOT_MODE_MMC: |
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copy_bl2 = (void *) *(u32 *)COPY_BL2_FNPTR_ADDR; |
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copy_bl2 = get_irom_func(MMC_INDEX); |
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copy_bl2(BL2_START_OFFSET, BL2_SIZE_BLOC_COUNT, |
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CONFIG_SYS_TEXT_BASE); |
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CONFIG_SYS_TEXT_BASE); |
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break; |
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case BOOT_MODE_EMMC: |
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/* Set the FSYS1 clock divisor value for EMMC boot */ |
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emmc_boot_clk_div_set(); |
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copy_bl2_from_emmc = get_irom_func(EMMC44_INDEX); |
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end_bootop_from_emmc = get_irom_func(EMMC44_END_INDEX); |
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copy_bl2_from_emmc(BL2_SIZE_BLOC_COUNT, CONFIG_SYS_TEXT_BASE); |
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end_bootop_from_emmc(); |
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break; |
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case BOOT_MODE_USB: |
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/*
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@ -88,8 +128,7 @@ void copy_uboot_to_ram(void) |
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* before copy from USB device to RAM |
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*/ |
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is_cr_z_set = config_branch_prediction(0); |
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usb_copy = *(usb_copy_func_t *) |
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EXYNOS_COPY_USB_FNPTR_ADDR; |
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usb_copy = get_irom_func(USB_INDEX); |
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usb_copy(); |
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config_branch_prediction(is_cr_z_set); |
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break; |
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@ -117,5 +156,4 @@ void board_init_r(gd_t *id, ulong dest_addr) |
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while (1) |
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; |
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} |
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void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) {} |
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