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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@linaro.org>
[Srinivas Kandagatla: rewrote the change log]
Tested-by: Girish Sharma <girish.sharma@einfochips.com>
Signed-off-by: Parth Pancholi <parth.pancholi@einfochips.com>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Parth Pancholi 2016-06-10 19:19:55 +01:00 committed by Andy Gross
parent 5f963e2951
commit 93b8e6fda1
1 changed files with 3 additions and 1 deletions
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4
arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
View File

@ -1,6 +1,7 @@
#include "qcom-apq8064-v2.0.dtsi"
#include "qcom-apq8064-arrow-sd-600eval-pins.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/mfd/qcom-rpm.h>
/ {
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 = <QCOM_RPM_FORCE_MODE_AUTO>;
bias-pull-down;
regulator-always-on;
};