ARM: at91: add TWI bindings to RM9200 DT

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
index b0268a5..a7031c6 100644 (file)
--- a/arch/arm/boot/dts/at91rm9200.dtsi
+++ b/arch/arm/boot/dts/at91rm9200.dtsi
@@ -29,6 +29,7 @@
                gpio3 = &pioD;
                tcb0 = &tcb0;
                tcb1 = &tcb1;
+               i2c0 = &i2c0;
                ssc0 = &ssc0;
                ssc1 = &ssc1;
                ssc2 = &ssc2;
@@ -91,6 +92,17 @@
                                interrupts = <20 4 0 21 4 0 22 4 0>;
                        };
 
+                       i2c0: i2c@fffb8000 {
+                               compatible = "atmel,at91rm9200-i2c";
+                               reg = <0xfffb8000 0x4000>;
+                               interrupts = <12 4 6>;
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&pinctrl_twi>;
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               status = "disabled";
+                       };
+
                        mmc0: mmc@fffb4000 {
                                compatible = "atmel,hsmci";
                                reg = <0xfffb4000 0x4000>;
@@ -365,6 +377,14 @@
                                        };
                                };
 
+                               twi {
+                                       pinctrl_twi: twi-0 {
+                                               atmel,pins =
+                                                       <0 25 0x1 0x2   /* PA25 periph A with multi drive */
+                                                        0 26 0x1 0x2>; /* PA26 periph A with multi drive */
+                                       };
+                               };
+
                                pioA: gpio@fffff400 {
                                        compatible = "atmel,at91rm9200-gpio";
                                        reg = <0xfffff400 0x200>;

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 9706c00..36b05fc 100644 (file)
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -212,6 +212,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
        CLKDEV_CON_DEV_ID("t2_clk", "fffa4000.timer", &tc5_clk),
        CLKDEV_CON_DEV_ID("mci_clk", "fffb4000.mmc", &mmc_clk),
        CLKDEV_CON_DEV_ID("emac_clk", "fffbc000.ethernet", &ether_clk),
+       CLKDEV_CON_DEV_ID(NULL, "fffb8000.i2c", &twi_clk),
        CLKDEV_CON_DEV_ID("hclk", "300000.ohci", &ohci_clk),
        CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk),
        CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk),