diff mbox series

ARM: dts: sun7i: a20: fix MMC index enumeration

Message ID 20260114105005.3136045-1-giulio.benetti@benettiengineering.com (mailing list archive)
State New
Headers
Series ARM: dts: sun7i: a20: fix MMC index enumeration |

Commit Message

Giulio Benetti Jan. 14, 2026, 10:50 a.m. UTC 
Currently, the OLinuXino-A20-Micro experiences non-deterministic MMC
enumeration during boot. When both an SDIO WiFi module (MMC1) and
an SD card (MMC0) are present, the kernel may swap their indices.

Explicitly define mmc* aliases to ensure consistent device naming
and prevent mapping conflicts.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
---
 arch/arm/boot/dts/allwinner/sun7i-a20.dtsi | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/allwinner/sun7i-a20.dtsi b/arch/arm/boot/dts/allwinner/sun7i-a20.dtsi
index 5f44f09c5545..a958400bcd7c 100644
--- a/arch/arm/boot/dts/allwinner/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/allwinner/sun7i-a20.dtsi
@@ -55,6 +55,10 @@  / {
 	#size-cells = <1>;
 
 	aliases {
+		mmc0 = &mmc0;
+		mmc1 = &mmc1;
+		mmc2 = &mmc2;
+		mmc3 = &mmc3;
 		ethernet0 = &gmac;
 	};