[PATCH] sunxi: Bring back SD card as MMC device 0

Andre Przywara andre.przywara at arm.com
Fri Apr 16 13:08:09 CEST 2021

Commit 2243d19e5618 ("mmc: mmc-uclass: Use dev_seq() to read aliases
node's index") now actually enforces U-Boot's device enumeration policy,
where explicitly named devices come first, then any other non-named
devices follow, without filling gaps.

For quite a while we have had an "mmc1 = &mmc2;" alias in our
sunxi-u-boot.dtsi, which now leads to the problem that the SD card
(which was always mmc device 0) now gets to be number 2.
I guess this breaks quite some boot scripts, and is confusing at least.

Just add an explicit mmc0 alias in the very same file to fix this and
restore the old behaviour.

Signed-off-by: Andre Przywara <andre.przywara at arm.com>
Reported-by: Samuel Holland <samuel at sholland.org>
 arch/arm/dts/sunxi-u-boot.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/dts/sunxi-u-boot.dtsi b/arch/arm/dts/sunxi-u-boot.dtsi
index a4227a3c22d..06da009fa28 100644
--- a/arch/arm/dts/sunxi-u-boot.dtsi
+++ b/arch/arm/dts/sunxi-u-boot.dtsi
@@ -12,6 +12,7 @@
 / {
 	aliases {
+		mmc0 = &mmc0;
 		mmc1 = &mmc2;

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