| Message ID | 9eeabbb361cf51e14b8adc39fe6f5ba5a91a7cf7.1436170106.git.marcel.ziswiler@toradex.com |
|---|---|
| State | Superseded |
| Delegated to: | Tom Warren |
| Headers | show |
On 6 July 2015 at 02:20, Marcel Ziswiler <marcel@ziswiler.com> wrote: > From: Marcel Ziswiler <marcel.ziswiler@toradex.com> > > Add I2C support in order to subsequently allow disabling the PMIC sleep > mode on low supply voltage. > > Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> > --- > arch/arm/dts/tegra20-colibri.dts | 28 ++++++++++++++++++++++++++++ > include/configs/colibri_t20.h | 4 ++++ > 2 files changed, 32 insertions(+) Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/tegra20-colibri.dts b/arch/arm/dts/tegra20-colibri.dts index ae40bad..42efcdc 100644 --- a/arch/arm/dts/tegra20-colibri.dts +++ b/arch/arm/dts/tegra20-colibri.dts @@ -11,6 +11,9 @@ }; aliases { + i2c0 = "/i2c@7000d000"; + i2c1 = "/i2c@7000c000"; + i2c2 = "/i2c@7000c400"; usb0 = "/usb@c5008000"; usb1 = "/usb@c5000000"; usb2 = "/usb@c5004000"; @@ -52,6 +55,31 @@ }; }; + /* + * GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier + * board) + */ + i2c@7000c000 { + status = "okay"; + clock-frequency = <100000>; + }; + + /* GEN2_I2C: unused */ + + /* DDC_CLOCK/DATA on X3 pin 15/16 (e.g. display EDID) */ + i2c@7000c400 { + status = "okay"; + clock-frequency = <100000>; + }; + + /* + * PWR_I2C: power I2C to PMIC and temperature sensor + */ + i2c@7000d000 { + status = "okay"; + clock-frequency = <100000>; + }; + sdhci@c8000600 { status = "okay"; cd-gpios = <&gpio TEGRA_GPIO(C, 7) GPIO_ACTIVE_LOW>; diff --git a/include/configs/colibri_t20.h b/include/configs/colibri_t20.h index fce1411..c85fb9f 100644 --- a/include/configs/colibri_t20.h +++ b/include/configs/colibri_t20.h @@ -25,6 +25,10 @@ #define CONFIG_MACH_TYPE MACH_TYPE_COLIBRI_T20 +/* I2C */ +#define CONFIG_SYS_I2C_TEGRA +#define CONFIG_CMD_I2C + /* SD/MMC support */ #define CONFIG_MMC #define CONFIG_GENERIC_MMC