arm64: dts: armada-3720-espressobin: Configure RGMII and SMI pins

Commit Message

Remi Pommarel Jan. 23, 2019, 7:39 p.m. UTC

In order to be able to communicate with the 88e6341 switch some pins
have to be repurposed as RGMII and SMI pins.

This fixes ethernet support on system booted via a bootloader that
has not already configured those pins (e.g. mainline u-boot, or vendor
u-boot compiled without ethernet support).

Signed-off-by: Remi Pommarel <[e-mail]>
---
This should be applied along with pinctrl fixes from
https://lkml.org/lkml/2018/12/21/507 which have been merged in next branch of
linux-pinctrl tree.
---
 arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts | 2 ++
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi            | 5 +++++
 2 files changed, 7 insertions(+)

Comments

Remi Pommarel Jan. 28, 2019, 8:13 p.m. UTC | #1

This patch has been included in patchset [1], please ignore this one.

[1] https://lkml.org/lkml/2019/1/28/1876

Patch

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
index 846003bb480c..b60897edc885 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -196,6 +196,8 @@ 
 };
 
 &eth0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_pins>, <&smi_pins>;
 	phy-mode = "rgmii-id";
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index e05594ea15fb..f61538910901 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -271,6 +271,11 @@ 
 					function = "mii";
 				};
 
+				smi_pins: smi-pins {
+					groups = "smi";
+					function = "smi";
+				};
+
 				sdio_pins: sdio-pins {
 					groups = "sdio_sb";
 					function = "sdio";