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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) ASPEED Technology Inc.
*/
#include <dm.h>
#include <asm/arch-aspeed/scu_ast2700.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <env.h>
#include <env_internal.h>
DECLARE_GLOBAL_DATA_PTR;
enum env_location env_get_location(enum env_operation op, int prio)
{
enum env_location env_loc = ENVL_UNKNOWN;
u32 strap = readl(ASPEED_IO_HW_STRAP1);
if (prio)
return env_loc;
if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE)) {
env_loc = ENVL_NOWHERE;
} else if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH) &&
!(strap & SCU_IO_HWSTRAP_EMMC)) {
env_loc = ENVL_SPI_FLASH;
} else if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC) &&
(strap & SCU_IO_HWSTRAP_EMMC) &&
!(strap & SCU_IO_HWSTRAP_UFS)) {
env_loc = ENVL_MMC;
} else if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH)) {
/*
* This tree does not carry an ENV_IS_IN_UFS backend yet.
* Fall back to SPI flash when that backend exists.
*/
env_loc = ENVL_SPI_FLASH;
} else {
env_loc = ENVL_NOWHERE;
}
return env_loc;
}
int arch_misc_init(void)
{
if (IS_ENABLED(CONFIG_ARCH_MISC_INIT)) {
if ((readl(ASPEED_IO_HW_STRAP1) & SCU_IO_HWSTRAP_EMMC)) {
if ((readl(ASPEED_IO_HW_STRAP1) & SCU_IO_HWSTRAP_UFS))
env_set("boot_device", "ufs");
else
env_set("boot_device", "mmc");
} else {
env_set("boot_device", "spi");
}
if ((readl(ASPEED_IO_HW_STRAP1) & SCU_IO_HWSTRAP_SECBOOT))
env_set("verify", "yes");
else
env_set("verify", "no");
}
return 0;
}
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