Lower drive strength for microSD data and CMD pins from 16 to 10. This
fixes spurious card removal issues observed on some boards. Also this
change allows us to re-enable 1.8V support, which seems to work with
lowered drive strength.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Cc: Veerabhadrarao Badiganti <vbadigan@xxxxxxxxxxxxxx>
Fixes: 53a8ccf1c7e5 ("arm64: dts: qcom: rb5: Add support for uSD card")
---
arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index f3da4b0a63bc..3cb3914b8305 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -1081,8 +1081,6 @@ &sdhc_2 {
vqmmc-supply = <&vreg_l6c_2p96>;
cd-gpios = <&tlmm 77 GPIO_ACTIVE_LOW>;
bus-width = <4>;
- /* there seem to be issues with HS400-1.8V mode, so disable it */
- no-1-8-v;
no-sdio;
no-emmc;
};
@@ -1382,13 +1380,13 @@ clk {
cmd {
pins = "sdc2_cmd";
bias-pull-up;
- drive-strength = <16>;
+ drive-strength = <10>;
};
data {
pins = "sdc2_data";
bias-pull-up;
- drive-strength = <16>;
+ drive-strength = <10>;
};
};
--
2.29.2
