ARM: dts: berlin: add I2C nodes for BG2Q

The Marvell Berlin BG2Q has 4 TWSI compatible with the Synopsys
DesignWare I2C driver. Add the corresponding nodes.

The pin-muxing setup is also done here, since there cannot be another
muxing setup if I2C{0,1,2,3} are enabled.

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

diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 3f95dc568b2350cdf14759189ca40c441138eeb9..bf163f48bd7cdaff3b143ed3d222a533a1f1ec63 100644 (file)
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -193,6 +193,32 @@
                                };
                        };
 
+                       i2c0: i2c@1400 {
+                               compatible = "snps,designware-i2c";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x1400 0x100>;
+                               interrupt-parent = <&aic>;
+                               interrupts = <4>;
+                               clocks = <&chip CLKID_CFG>;
+                               pinctrl-0 = <&twsi0_pmux>;
+                               pinctrl-names = "default";
+                               status = "disabled";
+                       };
+
+                       i2c1: i2c@1800 {
+                               compatible = "snps,designware-i2c";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x1800 0x100>;
+                               interrupt-parent = <&aic>;
+                               interrupts = <5>;
+                               clocks = <&chip CLKID_CFG>;
+                               pinctrl-0 = <&twsi1_pmux>;
+                               pinctrl-names = "default";
+                               status = "disabled";
+                       };
+
                        timer0: timer@2c00 {
                                compatible = "snps,dw-apb-timer";
                                reg = <0x2c00 0x14>;
@@ -303,6 +329,16 @@
                        reg = <0xea0000 0x400>, <0xdd0170 0x10>;
                        clocks = <&refclk>;
                        clock-names = "refclk";
+
+                       twsi0_pmux: twsi0-pmux {
+                               groups = "G6";
+                               function = "twsi0";
+                       };
+
+                       twsi1_pmux: twsi1-pmux {
+                               groups = "G7";
+                               function = "twsi1";
+                       };
                };
 
                apb@fc0000 {
@@ -313,6 +349,32 @@
                        ranges = <0 0xfc0000 0x10000>;
                        interrupt-parent = <&sic>;
 
+                       i2c2: i2c@7000 {
+                               compatible = "snps,designware-i2c";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x7000 0x100>;
+                               interrupt-parent = <&sic>;
+                               interrupts = <6>;
+                               clocks = <&refclk>;
+                               pinctrl-0 = <&twsi2_pmux>;
+                               pinctrl-names = "default";
+                               status = "disabled";
+                       };
+
+                       i2c3: i2c@8000 {
+                               compatible = "snps,designware-i2c";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x8000 0x100>;
+                               interrupt-parent = <&sic>;
+                               interrupts = <7>;
+                               clocks = <&refclk>;
+                               pinctrl-0 = <&twsi3_pmux>;
+                               pinctrl-names = "default";
+                               status = "disabled";
+                       };
+
                        uart0: uart@9000 {
                                compatible = "snps,dw-apb-uart";
                                reg = <0x9000 0x100>;
@@ -350,6 +412,16 @@
                                        groups = "GSM14";
                                        function = "uart1";
                                };
+
+                               twsi2_pmux: twsi2-pmux {
+                                       groups = "GSM13";
+                                       function = "twsi2";
+                               };
+
+                               twsi3_pmux: twsi3-pmux {
+                                       groups = "GSM14";
+                                       function = "twsi3";
+                               };
                        };
 
                        sic: interrupt-controller@e000 {