diff options
Diffstat (limited to 'arch/arm/mach-sunxi/board.c')
| -rw-r--r-- | arch/arm/mach-sunxi/board.c | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c index aa1d2230c9..b487b265af 100644 --- a/arch/arm/mach-sunxi/board.c +++ b/arch/arm/mach-sunxi/board.c @@ -221,12 +221,22 @@ void s_init(void) eth_init_board(); } +#define SUNXI_INVALID_BOOT_SOURCE -1 + +static int sunxi_get_boot_source(void) +{ + if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */ + return SUNXI_INVALID_BOOT_SOURCE; + + return readb(SPL_ADDR + 0x28); +} + /* The sunxi internal brom will try to loader external bootloader * from mmc0, nand flash, mmc2. */ uint32_t sunxi_get_boot_device(void) { - int boot_source; + int boot_source = sunxi_get_boot_source(); /* * When booting from the SD card or NAND memory, the "eGON.BT0" @@ -244,11 +254,9 @@ uint32_t sunxi_get_boot_device(void) * binary over USB. If it is found, it determines where SPL was * read from. */ - if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */ - return BOOT_DEVICE_BOARD; - - boot_source = readb(SPL_ADDR + 0x28); switch (boot_source) { + case SUNXI_INVALID_BOOT_SOURCE: + return BOOT_DEVICE_BOARD; case SUNXI_BOOTED_FROM_MMC0: case SUNXI_BOOTED_FROM_MMC0_HIGH: return BOOT_DEVICE_MMC1; @@ -266,6 +274,26 @@ uint32_t sunxi_get_boot_device(void) } #ifdef CONFIG_SPL_BUILD +/* + * The eGON SPL image can be located at 8KB or at 128KB into an SD card or + * an eMMC device. The boot source has bit 4 set in the latter case. + * By adding 120KB to the normal offset when booting from a "high" location + * we can support both cases. + */ +unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc) +{ + unsigned long sector = CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR; + + switch (sunxi_get_boot_source()) { + case SUNXI_BOOTED_FROM_MMC0_HIGH: + case SUNXI_BOOTED_FROM_MMC2_HIGH: + sector += (128 - 8) * 2; + break; + } + + return sector; +} + u32 spl_boot_device(void) { return sunxi_get_boot_device(); |