u-boot/arch/arm/cpu/armv7/ls102xa/spl.c
Alison Wang 86949c2b7c arm: ls102xa: Add SD boot support for LS1021AQDS board
This patch adds SD boot support for LS1021AQDS board. SPL
framework is used. PBL initialize the internal RAM and copy
SPL to it, then SPL initialize DDR using SPD and copy u-boot
from SD card to DDR, finally SPL transfer control to u-boot.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
Signed-off-by: Jason Jin <jason.jin@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-12-11 09:39:22 -08:00

33 lines
532 B
C

/*
* Copyright 2014 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <spl.h>
u32 spl_boot_device(void)
{
#ifdef CONFIG_SPL_MMC_SUPPORT
return BOOT_DEVICE_MMC1;
#endif
return BOOT_DEVICE_NAND;
}
u32 spl_boot_mode(void)
{
switch (spl_boot_device()) {
case BOOT_DEVICE_MMC1:
#ifdef CONFIG_SPL_FAT_SUPPORT
return MMCSD_MODE_FAT;
#else
return MMCSD_MODE_RAW;
#endif
case BOOT_DEVICE_NAND:
return 0;
default:
puts("spl: error: unsupported device\n");
hang();
}
}