ramips: fix PCIe reset pins for MTC WR1201

This router has two reset pins, GPIO 8 and GPIO 19. We have to
configure them correctly to ensure that the wireless NICs work
properly.

Fixes: https://github.com/openwrt/openwrt/issues/11736
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
Link: https://github.com/openwrt/openwrt/pull/16009
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/target/linux/ramips/dts/mt7621_mtc_wr1201.dts b/target/linux/ramips/dts/mt7621_mtc_wr1201.dts
index 31f3eb86570bd8a3b92fff2bca507c5b3304a647..24303ec5b38663c816acfe4b99df31821d0324f0 100644 (file)
--- a/target/linux/ramips/dts/mt7621_mtc_wr1201.dts
+++ b/target/linux/ramips/dts/mt7621_mtc_wr1201.dts
@@ -166,8 +166,18 @@
        status = "okay";
 };
 
+&pcie_pins {
+       uart3 {
+               groups = "uart3";
+               function = "gpio";
+       };
+};
+
 &pcie {
        status = "okay";
+
+       reset-gpios = <&gpio 8 GPIO_ACTIVE_LOW>,
+                     <&gpio 19 GPIO_ACTIVE_LOW>;
 };
 
 &pcie0 {