rockchip: puma-rk3399: load environment from same MMC as used for loading U-Boot proper
Automatically detect which MMC device (SD-Card or eMMC) was used to load
U-Boot proper and load the environment from that MMC device instead of
a hardcoded one.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c
index b2c0ff5..f412930 100644
--- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c
+++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c
@@ -113,6 +113,28 @@
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@fe320000"))
+ return 1;
+
+ if (!strcmp(boot_device, "/mmc@fe330000"))
+ return 0;
+
+ return CONFIG_SYS_MMC_ENV_DEV;
+}
+
int misc_init_r(void)
{
const u32 cpuid_offset = 0x7;