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https://github.com/brain-hackers/u-boot-brain
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0d986e61e2
DA850/OMAP-L138 does not support strict MMC/SD boot mode. SPL will be in SPI flash and U-Boot image will be in MMC/SD card. SPL will do the low level initialization and then loads the u-boot image from MMC/SD card. Define CONFIG_SPL_MMC_LOAD macro in the DA850/OMAP-L138 configuration file to enable this feature. Tested-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com> Signed-off-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com> Signed-off-by: Hadli, Manjunath <manjunath.hadli@ti.com>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <common.h>
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#include <mmc.h>
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DECLARE_GLOBAL_DATA_PTR;
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static void mmc_load_image(struct mmc *mmc)
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{
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s32 err;
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void (*uboot)(void) __noreturn;
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err = mmc->block_dev.block_read(0, CONFIG_SYS_MMC_U_BOOT_OFFS,
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CONFIG_SYS_MMC_U_BOOT_SIZE/512,
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(u32 *)CONFIG_SYS_TEXT_BASE);
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if (err <= 0) {
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printf("spl: error reading image %s, err - %d\n",
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"u-boot.img", err);
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hang();
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}
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uboot = (void *) CONFIG_SYS_TEXT_BASE;
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(*uboot)();
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}
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void spl_mmc_load(void)
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{
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struct mmc *mmc;
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int err;
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void (mmc_load_image)(struct mmc *mmc) __noreturn;
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mmc_initialize(gd->bd);
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mmc = find_mmc_device(0);
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if (!mmc) {
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puts("spl: mmc device not found!!\n");
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hang();
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} else {
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puts("spl: mmc device found\n");
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}
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err = mmc_init(mmc);
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if (err) {
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printf("spl: mmc init failed: err - %d\n", err);
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hang();
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}
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mmc_load_image(mmc);
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}
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