diff options
Diffstat (limited to 'board/samsung/smdk5250/spl_boot.c')
| -rw-r--r-- | board/samsung/smdk5250/spl_boot.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/board/samsung/smdk5250/spl_boot.c b/board/samsung/smdk5250/spl_boot.c deleted file mode 100644 index 83275f1..0000000 --- a/board/samsung/smdk5250/spl_boot.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Copyright (C) 2012 Samsung Electronics - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include<common.h> -#include<config.h> - -#include <asm/arch-exynos/dmc.h> -#include <asm/arch/clock.h> -#include <asm/arch/clk.h> -#include <asm/arch/spl.h> - -#include "clock_init.h" - -/* Index into irom ptr table */ -enum index { - MMC_INDEX, - EMMC44_INDEX, - EMMC44_END_INDEX, - SPI_INDEX, - USB_INDEX, -}; - -/* IROM Function Pointers Table */ -u32 irom_ptr_table[] = { - [MMC_INDEX] = 0x02020030, /* iROM Function Pointer-SDMMC boot */ - [EMMC44_INDEX] = 0x02020044, /* iROM Function Pointer-EMMC4.4 boot*/ - [EMMC44_END_INDEX] = 0x02020048,/* iROM Function Pointer - -EMMC4.4 end boot operation */ - [SPI_INDEX] = 0x02020058, /* iROM Function Pointer-SPI boot */ - [USB_INDEX] = 0x02020070, /* iROM Function Pointer-USB boot*/ - }; - -void *get_irom_func(int index) -{ - return (void *)*(u32 *)irom_ptr_table[index]; -} - -/* - * Set/clear program flow prediction and return the previous state. - */ -static int config_branch_prediction(int set_cr_z) -{ - unsigned int cr; - - /* System Control Register: 11th bit Z Branch prediction enable */ - cr = get_cr(); - set_cr(set_cr_z ? cr | CR_Z : cr & ~CR_Z); - - return cr & CR_Z; -} - -/* -* Copy U-boot from mmc to RAM: -* COPY_BL2_FNPTR_ADDR: Address in iRAM, which Contains -* Pointer to API (Data transfer from mmc to ram) -*/ -void copy_uboot_to_ram(void) -{ - int is_cr_z_set; - unsigned int sec_boot_check; - enum boot_mode bootmode = BOOT_MODE_OM; - - u32 (*spi_copy)(u32 offset, u32 nblock, u32 dst); - u32 (*copy_bl2)(u32 offset, u32 nblock, u32 dst); - u32 (*copy_bl2_from_emmc)(u32 nblock, u32 dst); - void (*end_bootop_from_emmc)(void); - u32 (*usb_copy)(void); - - /* Read iRAM location to check for secondary USB boot mode */ - sec_boot_check = readl(EXYNOS_IRAM_SECONDARY_BASE); - if (sec_boot_check == EXYNOS_USB_SECONDARY_BOOT) - bootmode = BOOT_MODE_USB; - - if (bootmode == BOOT_MODE_OM) - bootmode = readl(EXYNOS5_POWER_BASE) & OM_STAT; - - switch (bootmode) { - case BOOT_MODE_SERIAL: - spi_copy = get_irom_func(SPI_INDEX); - spi_copy(SPI_FLASH_UBOOT_POS, CONFIG_BL2_SIZE, - CONFIG_SYS_TEXT_BASE); - break; - case BOOT_MODE_MMC: - copy_bl2 = get_irom_func(MMC_INDEX); - copy_bl2(BL2_START_OFFSET, BL2_SIZE_BLOC_COUNT, - CONFIG_SYS_TEXT_BASE); - break; - case BOOT_MODE_EMMC: - /* Set the FSYS1 clock divisor value for EMMC boot */ - emmc_boot_clk_div_set(); - - copy_bl2_from_emmc = get_irom_func(EMMC44_INDEX); - end_bootop_from_emmc = get_irom_func(EMMC44_END_INDEX); - - copy_bl2_from_emmc(BL2_SIZE_BLOC_COUNT, CONFIG_SYS_TEXT_BASE); - end_bootop_from_emmc(); - break; - case BOOT_MODE_USB: - /* - * iROM needs program flow prediction to be disabled - * before copy from USB device to RAM - */ - is_cr_z_set = config_branch_prediction(0); - usb_copy = get_irom_func(USB_INDEX); - usb_copy(); - config_branch_prediction(is_cr_z_set); - break; - default: - break; - } -} - -void board_init_f(unsigned long bootflag) -{ - __attribute__((noreturn)) void (*uboot)(void); - copy_uboot_to_ram(); - - /* Jump to U-Boot image */ - uboot = (void *)CONFIG_SYS_TEXT_BASE; - (*uboot)(); - /* Never returns Here */ -} - -/* Place Holders */ -void board_init_r(gd_t *id, ulong dest_addr) -{ - /* Function attribute is no-return */ - /* This Function never executes */ - while (1) - ; -} -void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) {} |