[RFC,38/40] arm64: dts: k3-am6: Add mux-controller dt node required for muxing SERDES

Message ID 20180921102155.22839-39-kishon@ti.com
State New
Delegated to: Lorenzo Pieralisi
Headers show
Series
  • Cleanup pci-keystone.c and Add AM654 PCIe Support
Related show

Commit Message

Kishon Vijay Abraham I Sept. 21, 2018, 10:21 a.m.
Add mux-controller dt node as a child node of scm_conf. This is
required for muxing SERDES between USB, PCIe and ICSS2 SGMII. While
at that also add "simple-mfd" compatible string to scm_conf dt node
so that mux-controller device gets created.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 957c9125a453..4379c370f6f8 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -7,8 +7,15 @@ 
 
 &cbass_main {
 	scm_conf: scm_conf@100000 {
-		compatible = "syscon";
+		compatible = "syscon", "simple-mfd";
 		reg = <0 0x00100000 0 0x1c000>;
+
+		serdes_mux: mux-controller {
+			compatible = "mmio-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
+					<0x4090 0x3>; /* SERDES1 lane select */
+		};
 	};
 
 	gic500: interrupt-controller@1800000 {