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/*
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mmc.h>
#include <spl.h>
#include <linux/err.h>
#include "../sbc/sbc-regs.h"
#include "../soc-info.h"
#include "boot-device.h"
u32 spl_boot_device_raw(void)
{
if (boot_is_swapped())
return BOOT_DEVICE_NOR;
switch (uniphier_get_soc_type()) {
#if defined(CONFIG_ARCH_UNIPHIER_SLD3)
case SOC_UNIPHIER_SLD3:
return uniphier_sld3_boot_device();
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD4) || defined(CONFIG_ARCH_UNIPHIER_PRO4) || \
defined(CONFIG_ARCH_UNIPHIER_SLD8)
case SOC_UNIPHIER_LD4:
case SOC_UNIPHIER_PRO4:
case SOC_UNIPHIER_SLD8:
return uniphier_ld4_boot_device();
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
case SOC_UNIPHIER_PRO5:
return uniphier_pro5_boot_device();
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PXS2) || defined(CONFIG_ARCH_UNIPHIER_LD6B)
case SOC_UNIPHIER_PXS2:
case SOC_UNIPHIER_LD6B:
return uniphier_pxs2_boot_device();
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD20)
case SOC_UNIPHIER_LD20:
return uniphier_ld20_boot_device();
#endif
default:
return BOOT_DEVICE_NONE;
}
}
u32 spl_boot_device(void)
{
u32 ret;
ret = spl_boot_device_raw();
return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret;
}
u32 spl_boot_mode(void)
{
struct mmc *mmc;
/*
* work around a bug in the Boot ROM of PH1-sLD3, LD4, Pro4, and sLD8:
*
* The boot ROM in these SoCs breaks the PARTITION_CONFIG [179] of
* Extended CSD register; when switching to the Boot Partition 1, the
* Boot ROM should issue the SWITCH command (CMD6) with Set Bits for
* the Access Bits, but in fact it uses Write Byte for the Access Bits.
* As a result, the BOOT_PARTITION_ENABLE field of the PARTITION_CONFIG
* is lost. This bug was fixed for PH1-Pro5 and later SoCs.
*
* Fixup mmc->part_config here because it is used to determine the
* partition which the U-Boot image is read from.
*/
mmc = find_mmc_device(0);
mmc->part_config &= ~EXT_CSD_BOOT_PART_NUM(PART_ACCESS_MASK);
mmc->part_config |= EXT_CSD_BOOT_PARTITION_ENABLE;
return MMCSD_MODE_EMMCBOOT;
}
#if defined(CONFIG_DM_MMC) && !defined(CONFIG_SPL_BUILD)
static int find_first_mmc_device(void)
{
struct mmc *mmc;
int i;
for (i = 0; (mmc = find_mmc_device(i)); i++) {
if (!mmc_init(mmc) && IS_MMC(mmc))
return i;
}
return -ENODEV;
}
int mmc_get_env_dev(void)
{
return find_first_mmc_device();
}
static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int dev;
dev = find_first_mmc_device();
if (dev < 0)
return CMD_RET_FAILURE;
setenv_ulong("mmc_first_dev", dev);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
mmcsetn, 1, 1, do_mmcsetn,
"Set the first MMC (not SD) dev number to \"mmc_first_dev\" enviroment",
""
);
#endif
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