diff options
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index a82c31dbdbf3..4c3ac4214a2c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -319,6 +319,21 @@ }; }; +/* I2C on expansion connector J22. */ +&i2c5 { + clock-frequency = <100000>; /* Lower clock speed for external bus. */ + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c5>; + status = "disabled"; /* can1 pins conflict with i2c5 */ + + /* GPIO 2 of PCA6416 is used to switch between CAN1 and I2C5 functions: + * LOW: CAN1 (default, pull-down) + * HIGH: I2C5 + * You need to set it to high to enable I2C5 (for example, add gpio-hog + * in pca6416 node). + */ +}; + &snvs_pwrkey { status = "okay"; }; @@ -464,6 +479,13 @@ >; }; + pinctrl_i2c5: i2c5grp { + fsl,pins = < + MX8MP_IOMUXC_SPDIF_RX__I2C5_SDA 0x400001c3 + MX8MP_IOMUXC_SPDIF_TX__I2C5_SCL 0x400001c3 + >; + }; + pinctrl_pmic: pmicgrp { fsl,pins = < MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03 0x000001c0 |