Detect the SD/eMMC boot device at run-time. Load the environment from the boot deice, as well as save to it.
Leave the environment offset the same as in the SPI flash.
Make SD/eMMC 0 the default environment device when the boot device is not detected.
Cc: Konstantin Porotchkin kostap@marvell.com Signed-off-by: Baruch Siach baruch@tkos.co.il --- arch/arm/mach-mvebu/armada8k/cpu.c | 24 ++++++++++++++++++++++++ include/configs/mvebu_armada-8k.h | 3 +++ 2 files changed, 27 insertions(+)
diff --git a/arch/arm/mach-mvebu/armada8k/cpu.c b/arch/arm/mach-mvebu/armada8k/cpu.c index f8e8e73610d2..959a7cff7641 100644 --- a/arch/arm/mach-mvebu/armada8k/cpu.c +++ b/arch/arm/mach-mvebu/armada8k/cpu.c @@ -18,6 +18,10 @@ #define RFU_GLOBAL_SW_RST (MVEBU_RFU_BASE + 0x84) #define RFU_SW_RESET_OFFSET 0
+#define SAR0_REG (MVEBU_REGISTER(0x2400200)) +#define BOOT_MODE_MASK 0x3f +#define BOOT_MODE_OFFSET 4 + /* * The following table includes all memory regions for Armada 7k and * 8k SoCs. The Armada 7k is missing the CP110 slave regions here. Lets @@ -125,3 +129,23 @@ u32 mvebu_get_nand_clock(void) else return 250 * 1000000; } + +int mmc_get_env_dev(void) +{ + u32 reg; + unsigned int boot_mode; + + reg = readl(SAR0_REG); + boot_mode = (reg >> BOOT_MODE_OFFSET) & BOOT_MODE_MASK; + + switch (boot_mode) { + case 0x28: + case 0x2a: + return 0; + case 0x29: + case 0x2b: + return 1; + } + + return CONFIG_SYS_MMC_ENV_DEV; +} diff --git a/include/configs/mvebu_armada-8k.h b/include/configs/mvebu_armada-8k.h index 9205bd9632c3..b84ce670e8b3 100644 --- a/include/configs/mvebu_armada-8k.h +++ b/include/configs/mvebu_armada-8k.h @@ -66,6 +66,9 @@ #define CONFIG_ENV_SIZE (64 << 10) /* 64KiB */ #define CONFIG_ENV_SECT_SIZE (64 << 10) /* 64KiB sectors */
+/* When runtime detection fails this is the default */ +#define CONFIG_SYS_MMC_ENV_DEV 0 + #define CONFIG_SYS_MAX_NAND_DEVICE 1 #define CONFIG_SYS_NAND_MAX_CHIPS 1 #define CONFIG_SYS_NAND_ONFI_DETECTION