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authorDaniel González Cabanelas <dgcbueu@gmail.com>2023-02-16 23:04:20 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2023-03-29 22:19:27 +0200
commit2541ca616da8357b766130ed2f40dfc2d9e31f1c (patch)
tree7789c4cf098a69b864f710f64fa6f594d0c46bbc
parent5e69c097f74644b6733f794583bd5e143806a371 (diff)
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ipq40xx: Linksys MR8300: fix the USB port power
The USB port on the MR8300 randomly fails to feed bus-powered devices. This is caused by a misconfigured pinmux. The GPIO68 should be used to enable the USB power (active low), but it's inside the NAND pinmux. This GPIO pin was found in the original firmware at a startup script in both MR8300 and EA8300. Therefore apply the fix for both boards. Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com> Reviewed-by: Robert Marko <robimarko@gmail.com> (cherry picked from commit ed64c3323590e3c9fa8b423bf37689023a7a101f) Signed-off-by: Steffen Scheib <steffen@scheib.me>
-rw-r--r--target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-xx8300.dtsi12
1 files changed, 11 insertions, 1 deletions
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-xx8300.dtsi b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-xx8300.dtsi
index 8f971e505c..cb75e86c74 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-xx8300.dtsi
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-xx8300.dtsi
@@ -112,6 +112,16 @@
status = "okay";
};
};
+
+ regulator-usb-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "USB_VBUS";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ gpio = <&tlmm 68 GPIO_ACTIVE_LOW>;
+ };
};
@@ -280,7 +290,7 @@
pins = "gpio55", "gpio56", "gpio57",
"gpio60", "gpio62", "gpio63",
"gpio64", "gpio65", "gpio66",
- "gpio67", "gpio68", "gpio69";
+ "gpio67", "gpio69";
function = "qpic";
bias-pull-down;
};