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Several sunxi devices come with multiple mmc devices. On such devices, the mmc device order is unpredictable, so using /dev/mmcblk0p2 as root device doesn't always work, which results in unbootable devices. For the Banana Pi BPI-R3 in the mediatek target, this has been solved by defining aliases for the mmc devices in the DTS. Ideally we would do the same here, but for sunxi-a64 we already use UUID probing, so let's start with that (5f2ff607e2("uboot-sunxi: a64: allow booting directly from eMMC")). Since we're building and including u-boot in each supported device image, and this method has been proven to work fine for a64, let's just change the default u-boot env file to do the same. Fixes: #10080 Fixes:e6d9f6fdff("sunxi: add support for FriendlyARM NanoPi R1") Co-authored-by: Karl Palsson <karlp@etactica.com> Signed-off-by: Jan-Niklas Burfeind <git@aiyionpri.me> [use UUID in default u-boot env, rewrite commit message] Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
9 lines
403 B
Plaintext
9 lines
403 B
Plaintext
setenv fdt_high ffffffff
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setenv mmc_rootpart 2
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part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
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setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_addr_r uImage
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setenv loaddtb fatload mmc \$mmc_bootdev \$fdt_addr_r dtb
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setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait
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setenv uenvcmd run loadkernel \&\& run loaddtb \&\& bootm \$kernel_addr_r - \$fdt_addr_r
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run uenvcmd
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