linux-kernel - [PATCH] ARM: dts: sunxi: Add MMC alias for consistent enumeration

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Message-ID: <20241219105622.13691-2-code@stefan-gloor.ch>
Date: Thu, 19 Dec 2024 11:56:23 +0100
From: Stefan Gloor <code@...fan-gloor.ch>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	wens@...e.org,
	jernej.skrabec@...il.com,
	samuel@...lland.org
Cc: devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Stefan Gloor <code@...fan-gloor.ch>
Subject: [PATCH] ARM: dts: sunxi: Add MMC alias for consistent enumeration

Add explicit alias for MMC devices, so that (e)MMC and micro SD cards
are enumerated consistently. This should fix spurious boot failures when
specifying a hard-coded root partition, e.g., mmcblk0p2.

Link: https://github.com/linux-sunxi/meta-sunxi/pull/431
Signed-off-by: Stefan Gloor <code@...fan-gloor.ch>
---
 arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts
index a1b89b2a2999..9cd1eb690134 100644
--- a/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts
@@ -60,6 +60,8 @@ aliases {
 		serial2 = &uart7;
 		spi0 = &spi1;
 		spi1 = &spi2;
+		mmc0 = &mmc0;
+		mmc1 = &mmc3;
 	};
 
 	chosen {
-- 
2.45.2