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uboot-sunxi: a64: allow booting directly from eMMC

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Current boot script uses hardcoded bootdevice, which allows booting from
SD card only, so this patch allows booting directly from eMMC as well.
While at it, replace fixed root device with more flexible UUID based
probing, so from now on probing order of MMC device doesn't matter.

Signed-off-by: Petr Štetiar <ynezz@true.cz>
This commit is contained in:
Petr Štetiar 2020-03-18 15:00:22 +01:00
parent 90897df61a
commit 5f2ff607e2
1 changed files with 5 additions and 3 deletions
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8
package/boot/uboot-sunxi/uEnv-a64.txt
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@ -1,5 +1,7 @@
setenv loadkernel fatload mmc 0 \$kernel_addr_r uImage setenv mmc_rootpart 2
setenv loaddtb fatload mmc 0 \$fdt_addr_r dtb part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
setenv bootargs console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rootwait earlycon=uart,mmio32,0x01c28000 setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_addr_r uImage
setenv loaddtb fatload mmc \$mmc_bootdev \$fdt_addr_r dtb
setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait earlycon=uart,mmio32,0x01c28000
setenv uenvcmd run loadkernel \&\& run loaddtb \&\& booti \$kernel_addr_r - \$fdt_addr_r setenv uenvcmd run loadkernel \&\& run loaddtb \&\& booti \$kernel_addr_r - \$fdt_addr_r
run uenvcmd run uenvcmd