diff options
| author | Vishwanathrao Badarkhe, Manish <manishv.b@ti.com> | 2013-02-06 15:06:22 +0530 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2013-02-09 22:37:43 +0530 |
| commit | 01729ccf19b3c136cd93f8837b0a2761c23da700 (patch) | |
| tree | 7b00df270bca494bf83cab6227c77d11fcad843e | |
| parent | 1661636d362b6d1a6c2bab210f2ab363a69deccc (diff) | |
ARM: davinci: da850: add DT node for I2C0
Add I2C0 device tree and pin muxing information to da850-evm.
Also, add OF_DEV_AUXDATA for I2C0 controller driver in da850
board dt file to use I2C0 clock.
Verified i2c0 node gets created in sys class interface as
"/sys/class/i2c-dev/i2c-0/subsystem/i2c-0".
nsekhar@ti.com: tested using i2cdetect and i2cdump.
Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
| -rw-r--r-- | arch/arm/boot/dts/da850-evm.dts | 6 | ||||
| -rw-r--r-- | arch/arm/boot/dts/da850.dtsi | 14 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/da8xx-dt.c | 8 |
3 files changed, 27 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts index fa04152b24bf..0060903b2b78 100644 --- a/arch/arm/boot/dts/da850-evm.dts +++ b/arch/arm/boot/dts/da850-evm.dts @@ -30,6 +30,12 @@ rtc0: rtc@1c23000 { status = "okay"; }; + i2c0: i2c@1c22000 { + status = "okay"; + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + }; }; nand_cs3@62000000 { status = "okay"; diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi index 8dd15c0426a8..9669e80cbada 100644 --- a/arch/arm/boot/dts/da850.dtsi +++ b/arch/arm/boot/dts/da850.dtsi @@ -56,6 +56,12 @@ 0x30 0x01100000 0x0ff00000 >; }; + i2c0_pins: pinmux_i2c0_pins { + pinctrl-single,bits = < + /* I2C0_SDA,I2C0_SCL */ + 0x10 0x00002200 0x0000ff00 + >; + }; }; serial0: serial@1c42000 { compatible = "ns16550a"; @@ -88,6 +94,14 @@ 19>; status = "disabled"; }; + i2c0: i2c@1c22000 { + compatible = "ti,davinci-i2c"; + reg = <0x22000 0x1000>; + interrupts = <15>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; }; nand_cs3@62000000 { compatible = "ti,davinci-nand"; diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index 37c27af18fa0..a1731f0f5b97 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -37,11 +37,17 @@ static void __init da8xx_init_irq(void) of_irq_init(da8xx_irq_match); } +struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL), + {} +}; + #ifdef CONFIG_ARCH_DAVINCI_DA850 static void __init da850_init_machine(void) { - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + of_platform_populate(NULL, of_default_bus_match_table, + da850_auxdata_lookup, NULL); da8xx_uart_clk_enable(); } |