From: <Ryan.Wanner@microchip.com>
To: <robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<claudiu.beznea@tuxon.dev>
Cc: <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Ryan Wanner <Ryan.Wanner@microchip.com>
Subject: [PATCH] ARM: dts: microchip: sama7d65: Force SDMMC Legacy mode
Date: Tue, 19 Aug 2025 10:05:24 -0700 [thread overview]
Message-ID: <20250819170528.126010-1-Ryan.Wanner@microchip.com> (raw)
From: Ryan Wanner <Ryan.Wanner@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@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
next reply other threads:[~2025-08-19 17:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-19 17:05 Ryan.Wanner [this message]
2025-08-22 14:56 ` Nicolas Ferre
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