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ARM: dts: cm-t335: add basic support for I2C

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Add pinmux configuration for I2C0 and I2C1 pins.
Add description for I2C0 bus, set clock frequency to 400kHz.
Add child nodes for 24c02 EEPROM and em3027 RTC on I2C0 bus.

Signed-off-by: Ilya Ledvich <ilya@compulab.co.il>
Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Ilya Ledvich 2015-11-24 16:02:09 +02:00 committed by Tony Lindgren
parent 15be8179e4
commit 43577ecfca
1 changed files with 37 additions and 0 deletions
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37
arch/arm/boot/dts/am335x-cm-t335.dts
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@ -37,6 +37,24 @@ &am33xx_pinmux {
pinctrl-names = "default";
pinctrl-0 = <>;
i2c0_pins: pinmux_i2c0_pins {
pinctrl-single,pins = <
/* i2c0_sda.i2c0_sda */
AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0)
/* i2c0_scl.i2c0_scl */
AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0)
>;
};
i2c1_pins: pinmux_i2c1_pins {
pinctrl-single,pins = <
/* uart0_ctsn.i2c1_sda */
AM33XX_IOPAD(0x968, PIN_INPUT_PULLUP | MUX_MODE2)
/* uart0_rtsn.i2c1_scl */
AM33XX_IOPAD(0x96c, PIN_INPUT_PULLUP | MUX_MODE2)
>;
};
gpio_led_pins: pinmux_gpio_led_pins {
pinctrl-single,pins = <
/* gpmc_csn3.gpio2_0 */
@ -60,3 +78,22 @@ &uart0 {
status = "okay";
};
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "okay";
clock-frequency = <400000>;
/* CM-T335 board EEPROM */
eeprom: 24c02@50 {
compatible = "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
/* Real Time Clock */
ext_rtc: em3027@56 {
compatible = "emmicro,em3027";
reg = <0x56>;
};
};