ARM: dts: berlin: add the pinctrl node and muxing setup for uarts

Add pinctrl bindings and system control nodes to what we currently know
about Berlin SoCs. Where available, also set default pinctrl property
for uarts, when there is only one pinmux option for it.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

3 files changed, 57 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/berlin2.dtsi b/arch/arm/boot/dts/berlin2.dtsi
index 591d4b8c1c2b..2477dac4d643 100644
--- a/arch/arm/boot/dts/berlin2.dtsi
+++ b/arch/arm/boot/dts/berlin2.dtsi
@@ -296,6 +296,8 @@
                                 reg-io-width = <1>;
                                 interrupts = <8>;
                                 clocks = <&refclk>;
+                                pinctrl-0 = <&uart0_pmux>;
+                                pinctrl-names = "default";
                                 status = "disabled";
                         };
 
@@ -306,6 +308,8 @@
                                 reg-io-width = <1>;
                                 interrupts = <9>;
                                 clocks = <&refclk>;
+                                pinctrl-0 = <&uart1_pmux>;
+                                pinctrl-names = "default";
                                 status = "disabled";
                         };
 
@@ -316,9 +320,31 @@
                                 reg-io-width = <1>;
                                 interrupts = <10>;
                                 clocks = <&refclk>;
+                                pinctrl-0 = <&uart2_pmux>;
+                                pinctrl-names = "default";
                                 status = "disabled";
                         };
 
+                        sysctrl: system-controller@d000 {
+                                compatible = "marvell,berlin2-system-ctrl";
+                                reg = <0xd000 0x100>;
+
+                                uart0_pmux: uart0-pmux {
+                                        groups = "GSM4";
+                                        function = "uart0";
+                                };
+
+                                uart1_pmux: uart1-pmux {
+                                        groups = "GSM5";
+                                        function = "uart1";
+                                };
+
+                                uart2_pmux: uart2-pmux {
+                                        groups = "GSM3";
+                                        function = "uart2";
+                                };
+                        };
+
                         sic: interrupt-controller@e000 {
                                 compatible = "snps,dw-apb-ictl";
                                 reg = <0xe000 0x400>;
diff --git a/arch/arm/boot/dts/berlin2cd.dtsi b/arch/arm/boot/dts/berlin2cd.dtsi
index 1385caa6d029..cc1df65da504 100644
--- a/arch/arm/boot/dts/berlin2cd.dtsi
+++ b/arch/arm/boot/dts/berlin2cd.dtsi
@@ -234,6 +234,11 @@
                         reg = <0xea0000 0x400>;
                         clocks = <&refclk>;
                         clock-names = "refclk";
+
+                        uart0_pmux: uart0-pmux {
+                                groups = "G6";
+                                function = "uart0";
+                        };
                 };
 
                 apb@fc0000 {
@@ -281,6 +286,8 @@
                                 reg-io-width = <1>;
                                 interrupts = <8>;
                                 clocks = <&refclk>;
+                                pinctrl-0 = <&uart0_pmux>;
+                                pinctrl-names = "default";
                                 status = "disabled";
                         };
 
@@ -294,6 +301,11 @@
                                 status = "disabled";
                         };
 
+                        sysctrl: system-controller@d000 {
+                                compatible = "marvell,berlin2cd-system-ctrl";
+                                reg = <0xd000 0x100>;
+                        };
+
                         sic: interrupt-controller@e000 {
                                 compatible = "snps,dw-apb-ictl";
                                 reg = <0xe000 0x400>;
diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index cd3287c95f1a..81712f5954ef 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -294,6 +294,8 @@
                                 interrupts = <8>;
                                 clocks = <&refclk>;
                                 reg-shift = <2>;
+                                pinctrl-0 = <&uart0_pmux>;
+                                pinctrl-names = "default";
                                 status = "disabled";
                         };
 
@@ -304,9 +306,26 @@
                                 interrupts = <9>;
                                 clocks = <&refclk>;
                                 reg-shift = <2>;
+                                pinctrl-0 = <&uart1_pmux>;
+                                pinctrl-names = "default";
                                 status = "disabled";
                         };
 
+                        sysctrl: pin-controller@d000 {
+                                compatible = "marvell,berlin2q-system-ctrl";
+                                reg = <0xd000 0x100>;
+
+                                uart0_pmux: uart0-pmux {
+                                        groups = "GSM12";
+                                        function = "uart0";
+                                };
+
+                                uart1_pmux: uart1-pmux {
+                                        groups = "GSM14";
+                                        function = "uart1";
+                                };
+                        };
+
                         sic: interrupt-controller@e000 {
                                 compatible = "snps,dw-apb-ictl";
                                 reg = <0xe000 0x30>;