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-rw-r--r--target/linux/bcm53xx/patches-5.15/030-v5.16-0017-ARM-dts-NSP-Fix-MX65-MDIO-mux-warnings.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-5.15/030-v5.16-0017-ARM-dts-NSP-Fix-MX65-MDIO-mux-warnings.patch b/target/linux/bcm53xx/patches-5.15/030-v5.16-0017-ARM-dts-NSP-Fix-MX65-MDIO-mux-warnings.patch
new file mode 100644
index 0000000000..cad7388685
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.15/030-v5.16-0017-ARM-dts-NSP-Fix-MX65-MDIO-mux-warnings.patch
@@ -0,0 +1,52 @@
+From f5fc9044e5d45a4d97b5240c8723f4677f647c9f Mon Sep 17 00:00:00 2001
+From: Matthew Hagan <mnhagan88@gmail.com>
+Date: Sun, 29 Aug 2021 22:37:51 +0000
+Subject: [PATCH] ARM: dts: NSP: Fix MX65 MDIO mux warnings
+
+The naming of this node is based upon that of the initial EA9500 dts[1].
+However this does not conform with the mdio-mux format, yielding the
+following message when running dtbs_check:
+mdio-mii-mux: $nodename:0: 'mdio-mii-mux' does not match '^mdio-mux[\\-@]?'
+
+Secondly, this node should be moved to within the axi node and given the
+appropriate unit address. This also requires exposing the axi node via a
+label in bcm-nsp.dtsi. This fixes the following warning:
+Warning (unit_address_vs_reg): /mdio-mii-mux: node has a reg or ranges property, but no unit name
+
+[1]https://patchwork.ozlabs.org/project/linux-imx/patch/20180618174159.86150-1-npcomplete13@gmail.com/#1941353
+
+Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/boot/dts/bcm-nsp.dtsi | 2 +-
+ arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi | 6 ++++--
+ 2 files changed, 5 insertions(+), 3 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm-nsp.dtsi
++++ b/arch/arm/boot/dts/bcm-nsp.dtsi
+@@ -166,7 +166,7 @@
+ };
+ };
+
+- axi@18000000 {
++ axi: axi@18000000 {
+ compatible = "simple-bus";
+ ranges = <0x00000000 0x18000000 0x0011c40c>;
+ #address-cells = <1>;
+--- a/arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi
++++ b/arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi
+@@ -70,10 +70,12 @@
+ gpios = <&gpioa 31 GPIO_ACTIVE_HIGH>;
+ };
+ };
++};
+
+- mdio-mii-mux {
++&axi {
++ mdio-mux@3f1c0 {
+ compatible = "mdio-mux-mmioreg", "mdio-mux";
+- reg = <0x1803f1c0 0x4>;
++ reg = <0x3f1c0 0x4>;
+ mux-mask = <0x2000>;
+ mdio-parent-bus = <&mdio_ext>;
+ #address-cells = <1>;