@@ -127,5 +127,4 @@ struct sunxi_mmc {
#define SUNXI_MMC_COMMON_RESET (1 << 18)
struct mmc *sunxi_mmc_init(int sdc_no);
-int sunxi_mmc_has_egon_boot_signature(struct mmc *mmc);
#endif /* _SUNXI_MMC_H */
@@ -203,7 +203,8 @@ DECLARE_GLOBAL_DATA_PTR;
*/
u32 spl_boot_device(void)
{
- __maybe_unused struct mmc *mmc0, *mmc1;
+ int boot_source;
+
/*
* When booting from the SD card or NAND memory, the "eGON.BT0"
* signature is expected to be found in memory at the address 0x0004
@@ -223,32 +224,19 @@ u32 spl_boot_device(void)
if (!is_boot0_magic(SPL_ADDR + 4)) /* eGON.BT0 */
return BOOT_DEVICE_BOARD;
-#ifdef CONFIG_SPL_SPI_SUNXI
- if (readb(SPL_ADDR + 0x28) == SUNXI_BOOTED_FROM_SPI)
- return BOOT_DEVICE_SPI;
-#endif
-
- /* The BROM will try to boot from mmc0 first, so try that first. */
-#ifdef CONFIG_MMC
- mmc_initialize(gd->bd);
- mmc0 = find_mmc_device(0);
- if (sunxi_mmc_has_egon_boot_signature(mmc0))
+ boot_source = readb(SPL_ADDR + 0x28);
+ switch (boot_source) {
+ case SUNXI_BOOTED_FROM_MMC0:
return BOOT_DEVICE_MMC1;
-#endif
-
- /* Fallback to booting NAND if enabled. */
- if (IS_ENABLED(CONFIG_SPL_NAND_SUPPORT))
+ case SUNXI_BOOTED_FROM_NAND:
return BOOT_DEVICE_NAND;
-
-#ifdef CONFIG_MMC
- if (CONFIG_MMC_SUNXI_SLOT_EXTRA == 2) {
- mmc1 = find_mmc_device(1);
- if (sunxi_mmc_has_egon_boot_signature(mmc1))
- return BOOT_DEVICE_MMC2;
+ case SUNXI_BOOTED_FROM_MMC2:
+ return BOOT_DEVICE_MMC2;
+ case SUNXI_BOOTED_FROM_SPI:
+ return BOOT_DEVICE_SPI;
}
-#endif
- panic("Could not determine boot source\n");
+ panic("Unknown boot source %d\n", boot_source);
return -1; /* Never reached */
}
@@ -369,8 +369,7 @@ int board_mmc_init(bd_t *bis)
* are searched there first. Note we only do this for u-boot proper,
* not for the SPL, see spl_boot_device().
*/
- if (!sunxi_mmc_has_egon_boot_signature(mmc0) &&
- sunxi_mmc_has_egon_boot_signature(mmc1)) {
+ if (readb(SPL_ADDR + 0x28) == SUNXI_BOOTED_FROM_MMC2) {
/* Booting from emmc / mmc2, swap */
mmc0->block_dev.devnum = 1;
mmc1->block_dev.devnum = 0;
@@ -445,23 +445,6 @@ static int sunxi_mmc_getcd(struct mmc *mmc)
return !gpio_get_value(cd_pin);
}
-int sunxi_mmc_has_egon_boot_signature(struct mmc *mmc)
-{
- char *buf = malloc(512);
- int valid_signature = 0;
-
- if (buf == NULL)
- panic("Failed to allocate memory\n");
-
- if (mmc_getcd(mmc) && mmc_init(mmc) == 0 &&
- mmc->block_dev.block_read(&mmc->block_dev, 16, 1, buf) == 1 &&
- strncmp(&buf[4], "eGON.BT0", 8) == 0)
- valid_signature = 1;
-
- free(buf);
- return valid_signature;
-}
-
static const struct mmc_ops sunxi_mmc_ops = {
.send_cmd = sunxi_mmc_send_cmd,
.set_ios = sunxi_mmc_set_ios,
Now that we know that the BROM stores a value indicating the boot-source at the beginning of SRAM, use that instead of trying to recreate the BROM's boot probing. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- arch/arm/include/asm/arch-sunxi/mmc.h | 1 - arch/arm/mach-sunxi/board.c | 34 +++++++++++----------------------- board/sunxi/board.c | 3 +-- drivers/mmc/sunxi_mmc.c | 17 ----------------- 4 files changed, 12 insertions(+), 43 deletions(-)