[PATCH] ARM: dts: microchip: sama7d65: Force SDMMC Legacy mode

Ryan.Wanner at microchip.com Ryan.Wanner at microchip.com
Tue Aug 19 10:05:24 PDT 2025


From: Ryan Wanner <Ryan.Wanner at microchip.com>

The SDMMC in this IP currently only supports legacy mode
due to a hardware quirk, setting the flags to reflect the limitation.

Signed-off-by: Ryan Wanner <Ryan.Wanner at microchip.com>
---
 arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
index 7eaf6ca233ec..d086437f5e6f 100644
--- a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
@@ -387,6 +387,8 @@ &rtt {
 
 &sdmmc1 {
 	bus-width = <4>;
+	no-1-8-v;
+	sdhci-caps-mask = <0x0 0x00200000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc1_default>;
 	status = "okay";
-- 
2.43.0




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