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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2022 Theobroma Systems Design und Consulting GmbH
*/
#include <common.h>
#include <dm.h>
#include <env.h>
#include <env_internal.h>
#include <init.h>
#include <log.h>
#include <misc.h>
#include <spl.h>
#include <syscon.h>
#include <u-boot/crc.h>
#include <usb.h>
#include <dm/pinctrl.h>
#include <dm/uclass-internal.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/hardware.h>
#include <asm/arch-rockchip/periph.h>
#include <asm/arch-rockchip/misc.h>
#include <power/regulator.h>
#include <u-boot/sha256.h>
/*
* Swap mmc0 and mmc1 in boot_targets if booted from SD-Card.
*
* If bootsource is uSD-card we can assume that we want to use the
* SD-Card instead of the eMMC as first boot_target for distroboot.
* We only want to swap the defaults and not any custom environment a
* user has set. We exit early if a changed boot_targets environment
* is detected.
*/
static int setup_boottargets(void)
{
const char *boot_device =
ofnode_read_chosen_string("u-boot,spl-boot-device");
char *env_default, *env;
if (!boot_device) {
debug("%s: /chosen/u-boot,spl-boot-device not set\n",
__func__);
return -1;
}
debug("%s: booted from %s\n", __func__, boot_device);
env_default = env_get_default("boot_targets");
env = env_get("boot_targets");
if (!env) {
debug("%s: boot_targets does not exist\n", __func__);
return -1;
}
debug("%s: boot_targets current: %s - default: %s\n",
__func__, env, env_default);
if (strcmp(env_default, env) != 0) {
debug("%s: boot_targets not default, don't change it\n",
__func__);
return 0;
}
/*
* Make the default boot medium between SD Card and eMMC, the one that
* was used to load U-Boot proper.
*/
bool sd_booted = !strcmp(boot_device, "/mmc@ff370000");
char *mmc0, *mmc1;
debug("%s: booted from %s\n", __func__,
sd_booted ? "SD-Card" : "eMMC");
mmc0 = strstr(env, "mmc0");
mmc1 = strstr(env, "mmc1");
if (!mmc0 || !mmc1) {
debug("%s: only one mmc boot_target found\n", __func__);
return -1;
}
/*
* If mmc0 comes first in the boot order and U-Boot proper was
* loaded from mmc1, swap mmc0 and mmc1 in the list.
* If mmc1 comes first in the boot order and U-Boot proper was
* loaded from mmc0, swap mmc0 and mmc1 in the list.
*/
if ((mmc0 < mmc1 && sd_booted) ||
(mmc0 > mmc1 && !sd_booted)) {
mmc0[3] = '1';
mmc1[3] = '0';
debug("%s: set boot_targets to: %s\n", __func__, env);
env_set("boot_targets", env);
}
return 0;
}
int mmc_get_env_dev(void)
{
const char *boot_device =
ofnode_read_chosen_string("u-boot,spl-boot-device");
if (!boot_device) {
debug("%s: /chosen/u-boot,spl-boot-device not set\n",
__func__);
return CONFIG_SYS_MMC_ENV_DEV;
}
debug("%s: booted from %s\n", __func__, boot_device);
if (!strcmp(boot_device, "/mmc@ff370000"))
return 1;
if (!strcmp(boot_device, "/mmc@ff390000"))
return 0;
return CONFIG_SYS_MMC_ENV_DEV;
}
#if !IS_ENABLED(CONFIG_ENV_IS_NOWHERE)
#error Please enable CONFIG_ENV_IS_NOWHERE
#endif
enum env_location arch_env_get_location(enum env_operation op, int prio)
{
const char *boot_device =
ofnode_read_chosen_string("u-boot,spl-boot-device");
if (prio > 0)
return ENVL_UNKNOWN;
if (!boot_device) {
debug("%s: /chosen/u-boot,spl-boot-device not set\n",
__func__);
return ENVL_NOWHERE;
}
debug("%s: booted from %s\n", __func__, boot_device);
if (IS_ENABLED(CONFIG_ENV_IS_IN_MMC) &&
(!strcmp(boot_device, "/mmc@ff370000") ||
!strcmp(boot_device, "/mmc@ff390000")))
return ENVL_MMC;
printf("%s: No environment available: booted from %s but U-Boot "
"config does not allow loading environment from it.",
__func__, boot_device);
return ENVL_NOWHERE;
}
int misc_init_r(void)
{
const u32 cpuid_offset = 0x7;
const u32 cpuid_length = 0x10;
u8 cpuid[cpuid_length];
int ret;
ret = rockchip_cpuid_from_efuse(cpuid_offset, cpuid_length, cpuid);
if (ret)
return ret;
ret = rockchip_cpuid_set(cpuid, cpuid_length);
if (ret)
return ret;
ret = rockchip_setup_macaddr();
if (ret)
return ret;
setup_boottargets();
return 0;
}
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