From: Shiji Yang <yangshiji66@qq.com>
Date: Tue, 21 Mar 2023 08:50:56 +0000 (+0800)
Subject: ramips: mt7621: enable unused PCIe port to fix potential boot failure
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=88d76bb455c8fdb525ac2495feda71c14a558296;p=openwrt%2Fstaging%2Fblogic.git

ramips: mt7621: enable unused PCIe port to fix potential boot failure

One user reported that his SIMAX1800T couldn't boot like the others. After
debugging, I found that this was caused by the disabled PCIe port. I cannot
reproduce this issue on my SIMAX1800T. But when I disabled pcie2 on the
ASUS RT-AC57U, I got the same result.

It seems that disabling these unused PCIe ports on some mt7621 revisions
will cause PCIe to fail to initialize. So we'd better to re-enable them on
all related mt7621 devices.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
---

diff --git a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
index 54d7908e406a..fe374bfa6b01 100644
--- a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
+++ b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
@@ -138,10 +138,6 @@
 	};
 };
 
-&pcie2 {
-	status = "disabled";
-};
-
 &state_default {
 	gpio {
 		groups = "jtag";
diff --git a/target/linux/ramips/dts/mt7621_haier-sim_wr1800k.dtsi b/target/linux/ramips/dts/mt7621_haier-sim_wr1800k.dtsi
index a272d1ad755b..4dd6f3b0ae55 100644
--- a/target/linux/ramips/dts/mt7621_haier-sim_wr1800k.dtsi
+++ b/target/linux/ramips/dts/mt7621_haier-sim_wr1800k.dtsi
@@ -152,10 +152,6 @@
 	};
 };
 
-&pcie2 {
-	status = "disabled";
-};
-
 &state_default {
 	gpio {
 		groups = "i2c", "uart3", "wdt";
diff --git a/target/linux/ramips/dts/mt7621_netgear_wax202.dts b/target/linux/ramips/dts/mt7621_netgear_wax202.dts
index 02f540d7431c..fbe17ef0d38c 100644
--- a/target/linux/ramips/dts/mt7621_netgear_wax202.dts
+++ b/target/linux/ramips/dts/mt7621_netgear_wax202.dts
@@ -217,10 +217,6 @@
 	};
 };
 
-&pcie2 {
-	status = "disabled";
-};
-
 &state_default {
 	gpio {
 		groups = "uart3", "uart2", "jtag", "wdt";
diff --git a/target/linux/ramips/dts/mt7621_tplink_eap615-wall-v1.dts b/target/linux/ramips/dts/mt7621_tplink_eap615-wall-v1.dts
index 36809d48ff20..58e4bbf75741 100644
--- a/target/linux/ramips/dts/mt7621_tplink_eap615-wall-v1.dts
+++ b/target/linux/ramips/dts/mt7621_tplink_eap615-wall-v1.dts
@@ -148,10 +148,6 @@
 	};
 };
 
-&pcie2 {
-	status = "disabled";
-};
-
 &gmac0 {
 	nvmem-cells = <&macaddr_info_8>;
 	nvmem-cell-names = "mac-address";