提交 43577ecf 编写于 作者: I Ilya Ledvich 提交者: Tony Lindgren

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

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: NIlya Ledvich <ilya@compulab.co.il>
Signed-off-by: NUri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NTony Lindgren <tony@atomide.com>
上级 15be8179
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
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...@@ -37,6 +37,24 @@ ...@@ -37,6 +37,24 @@
pinctrl-names = "default"; pinctrl-names = "default";
pinctrl-0 = <>; 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 { gpio_led_pins: pinmux_gpio_led_pins {
pinctrl-single,pins = < pinctrl-single,pins = <
/* gpmc_csn3.gpio2_0 */ /* gpmc_csn3.gpio2_0 */
...@@ -60,3 +78,22 @@ ...@@ -60,3 +78,22 @@
status = "okay"; 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>;
};
};
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