[PATCH v2 20/21] arm: dts: k3-am654-base-board: Limit Sd card to High speed modes

Faiz Abbas faiz_abbas at ti.com
Fri Oct 16 13:08:54 CEST 2020


There's an issue with the base board in which the power cycle
circuit takes way longer to power down than expected by mmc core.
code. This prevents the card from enumerating in UHS modes.

Disable UHS modes for this board until a new board revision fixes
the issue.

Signed-off-by: Faiz Abbas <faiz_abbas at ti.com>
---
 arch/arm/dts/k3-am654-base-board.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/dts/k3-am654-base-board.dts b/arch/arm/dts/k3-am654-base-board.dts
index 33a1b9fdc4..830526a1e4 100644
--- a/arch/arm/dts/k3-am654-base-board.dts
+++ b/arch/arm/dts/k3-am654-base-board.dts
@@ -144,6 +144,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	ti,driver-strength-ohm = <50>;
+	sdhci-caps-mask = <0x7 0x0>;
 	disable-wp;
 };
 
-- 
2.17.1



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