From 2e4646fcf227f8023e535ddb18d3f3185665d8dd Mon Sep 17 00:00:00 2001 From: Parth Pancholi Date: Fri, 10 Jun 2016 19:19:55 +0100 Subject: [PATCH] ARM: dts: sd_600eval: Fix eMMC lockup issue This board locks up if we stress test the eMMC, as the regulator s4 is unable to supply enough current for all the peripherials attached to it. As this supply is wired up to most of the peripherials including DDR, it resulted in such lockup. This patch fixes this issue by setting s4 regulator correctly with Auto power mode. Reported-by: Srinivas Kandagatla [Srinivas Kandagatla: rewrote the change log] Tested-by: Girish Sharma Signed-off-by: Parth Pancholi --- arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts index beb85af41c94..bf6457642776 100644 --- a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts +++ b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts @@ -1,6 +1,7 @@ #include "qcom-apq8064-v2.0.dtsi" #include "qcom-apq8064-arrow-sd-600eval-pins.dtsi" #include +#include / { model = "Arrow Electronics, APQ8064 SD_600eval"; @@ -82,7 +83,8 @@ s4 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; - qcom,switch-mode-frequency = <3200000>; + qcom,switch-mode-frequency = <1600000>; + qcom,force-mode = ; bias-pull-down; regulator-always-on; }; -- 2.39.2