mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-21 18:39:43 +09:00
ecd8557937
Implemented fb_set_reboot_flag() for OMAP5 to set an environment variable 'dofastboot' when reboot-bootloader called. This environment variable will be checked in boot command and fastboot will be called if the variable is set. If the bootcmd env variable of OMAP5 common is overwritten with board-specific command, then these changes will not apply. This was originally intended for DRA7 platform, but now applies to all OMAP5. Ref: http://git.omapzoom.org/?p=repo/u-boot.git;a=commit;h=19da2e436e9806259cf1f4988b9e046ab256bf2c Signed-off-by: Angela Stegmaier <angelabaker@ti.com> Signed-off-by: Dileep Katta <dileep.katta@linaro.org> Reviewed-by: Tom Rini <trini@konsulko.com> [trini: Make it check for !CONFIG_ENV_IS_NOWHERE as we can't saveenv() in that case] Signed-off-by: Tom Rini <trini@konsulko.com>
175 lines
4.2 KiB
C
175 lines
4.2 KiB
C
/*
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* boot-common.c
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*
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* Common bootmode functions for omap based boards
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*
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* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <ahci.h>
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#include <spl.h>
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#include <asm/omap_common.h>
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#include <asm/arch/omap.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/sys_proto.h>
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#include <watchdog.h>
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#include <scsi.h>
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DECLARE_GLOBAL_DATA_PTR;
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void save_omap_boot_params(void)
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{
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u32 rom_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
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u8 boot_device;
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u32 dev_desc, dev_data;
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if ((rom_params < NON_SECURE_SRAM_START) ||
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(rom_params > NON_SECURE_SRAM_END))
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return;
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/*
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* rom_params can be type casted to omap_boot_parameters and
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* used. But it not correct to assume that romcode structure
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* encoding would be same as u-boot. So use the defined offsets.
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*/
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boot_device = *((u8 *)(rom_params + BOOT_DEVICE_OFFSET));
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#if defined(BOOT_DEVICE_NAND_I2C)
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/*
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* Re-map NAND&I2C boot-device to the "normal" NAND boot-device.
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* Otherwise the SPL boot IF can't handle this device correctly.
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* Somehow booting with Hynix 4GBit NAND H27U4G8 on Siemens
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* Draco leads to this boot-device passed to SPL from the BootROM.
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*/
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if (boot_device == BOOT_DEVICE_NAND_I2C)
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boot_device = BOOT_DEVICE_NAND;
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#endif
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gd->arch.omap_boot_params.omap_bootdevice = boot_device;
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gd->arch.omap_boot_params.ch_flags =
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*((u8 *)(rom_params + CH_FLAGS_OFFSET));
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if ((boot_device >= MMC_BOOT_DEVICES_START) &&
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(boot_device <= MMC_BOOT_DEVICES_END)) {
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#if !defined(CONFIG_AM33XX) && !defined(CONFIG_TI81XX) && \
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!defined(CONFIG_AM43XX)
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if ((omap_hw_init_context() ==
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OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)) {
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gd->arch.omap_boot_params.omap_bootmode =
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*((u8 *)(rom_params + BOOT_MODE_OFFSET));
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} else
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#endif
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{
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dev_desc = *((u32 *)(rom_params + DEV_DESC_PTR_OFFSET));
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dev_data = *((u32 *)(dev_desc + DEV_DATA_PTR_OFFSET));
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gd->arch.omap_boot_params.omap_bootmode =
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*((u32 *)(dev_data + BOOT_MODE_OFFSET));
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}
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}
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#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
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/*
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* We get different values for QSPI_1 and QSPI_4 being used, but
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* don't actually care about this difference. Rather than
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* mangle the later code, if we're coming in as QSPI_4 just
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* change to the QSPI_1 value.
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*/
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if (gd->arch.omap_boot_params.omap_bootdevice == 11)
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gd->arch.omap_boot_params.omap_bootdevice = BOOT_DEVICE_SPI;
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#endif
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}
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#ifdef CONFIG_SPL_BUILD
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u32 spl_boot_device(void)
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{
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return (u32) (gd->arch.omap_boot_params.omap_bootdevice);
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}
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u32 spl_boot_mode(void)
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{
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u32 val = gd->arch.omap_boot_params.omap_bootmode;
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if (val == MMCSD_MODE_RAW)
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return MMCSD_MODE_RAW;
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else if (val == MMCSD_MODE_FS)
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return MMCSD_MODE_FS;
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else
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#ifdef CONFIG_SUPPORT_EMMC_BOOT
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return MMCSD_MODE_EMMCBOOT;
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#else
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return MMCSD_MODE_UNDEFINED;
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#endif
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}
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void spl_board_init(void)
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{
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/*
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* Save the boot parameters passed from romcode.
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* We cannot delay the saving further than this,
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* to prevent overwrites.
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*/
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save_omap_boot_params();
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/* Prepare console output */
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preloader_console_init();
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#ifdef CONFIG_SPL_NAND_SUPPORT
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gpmc_init();
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#endif
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#if defined(CONFIG_AM33XX) && defined(CONFIG_SPL_MUSB_NEW_SUPPORT)
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arch_misc_init();
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#endif
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#if defined(CONFIG_HW_WATCHDOG)
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hw_watchdog_init();
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#endif
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#ifdef CONFIG_AM33XX
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am33xx_spl_board_init();
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#endif
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}
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int board_mmc_init(bd_t *bis)
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{
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switch (spl_boot_device()) {
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case BOOT_DEVICE_MMC1:
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omap_mmc_init(0, 0, 0, -1, -1);
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break;
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case BOOT_DEVICE_MMC2:
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case BOOT_DEVICE_MMC2_2:
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omap_mmc_init(1, 0, 0, -1, -1);
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break;
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}
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return 0;
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}
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void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
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{
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typedef void __noreturn (*image_entry_noargs_t)(u32 *);
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image_entry_noargs_t image_entry =
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(image_entry_noargs_t) spl_image->entry_point;
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debug("image entry point: 0x%X\n", spl_image->entry_point);
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/* Pass the saved boot_params from rom code */
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image_entry((u32 *)&gd->arch.omap_boot_params);
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}
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#endif
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#ifdef CONFIG_SCSI_AHCI_PLAT
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void arch_preboot_os(void)
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{
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ahci_reset((void __iomem *)DWC_AHSATA_BASE);
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}
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#endif
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#if defined(CONFIG_CMD_FASTBOOT) && !defined(CONFIG_ENV_IS_NOWHERE)
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int fb_set_reboot_flag(void)
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{
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printf("Setting reboot to fastboot flag ...\n");
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setenv("dofastboot", "1");
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saveenv();
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return 0;
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}
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#endif
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