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| author | Baruch Siach <baruch@tkos.co.il> | 2018-08-14 18:05:46 +0300 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2018-09-19 09:59:26 +0300 |
| commit | 7e1d32208e035b3014e8dd83dbe41506327f5d40 (patch) | |
| tree | 3280e3f61393cba74b83c2d56cd6037b8b477a6d /arch/arm/mach-mvebu | |
| parent | 9ca6fae9d0588bccba681c4f7ab1926bc32bdbcc (diff) | |
| download | u-boot-7e1d32208e035b3014e8dd83dbe41506327f5d40.tar.xz | |
arm64: mvebu: armada-8k: support environment in SD/eMMC
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>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/armada8k/cpu.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/armada8k/cpu.c b/arch/arm/mach-mvebu/armada8k/cpu.c index f8e8e73610..959a7cff76 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; +} |