From b6427783a8d7993b2ff0b3368a218ec917f740b7 Mon Sep 17 00:00:00 2001 From: Vignesh Raghavendra Date: Mon, 27 Jan 2020 23:22:15 +0530 Subject: [PATCH] arm: dts: k3-j721e-common-proc-board: Enable I2C expander for SPL IO expanders are required to power cycle SD card. So enable the same Signed-off-by: Vignesh Raghavendra Signed-off-by: Lokesh Vutla --- .../k3-j721e-common-proc-board-u-boot.dtsi | 12 +++++++++ .../arm/dts/k3-j721e-r5-common-proc-board.dts | 27 +++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi index 7ea4d8de36..a3a8193216 100644 --- a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi +++ b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi @@ -337,3 +337,15 @@ &wkup_i2c0 { u-boot,dm-spl; }; + +&main_i2c0 { + u-boot,dm-spl; +}; + +&main_i2c0_pins_default { + u-boot,dm-spl; +}; + +&exp2 { + u-boot,dm-spl; +}; diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts index 585cc83963..1f14d71438 100644 --- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts +++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts @@ -140,6 +140,13 @@ J721E_IOPAD(0x25c, PIN_INPUT, 0) /* (R28) MMC1_SDWP */ >; }; + + main_i2c0_pins_default: main-i2c0-pins-default { + pinctrl-single,pins = < + J721E_IOPAD(0x220, PIN_INPUT_PULLUP, 0) /* (AC5) I2C0_SCL */ + J721E_IOPAD(0x224, PIN_INPUT_PULLUP, 0) /* (AA5) I2C0_SDA */ + >; + }; }; &wkup_uart0 { @@ -225,4 +232,24 @@ ti,vbus-divider; }; +&main_i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c0_pins_default>; + clock-frequency = <400000>; + + exp1: gpio@20 { + compatible = "ti,tca6416"; + reg = <0x20>; + gpio-controller; + #gpio-cells = <2>; + }; + + exp2: gpio@22 { + compatible = "ti,tca6424"; + reg = <0x22>; + gpio-controller; + #gpio-cells = <2>; + }; +}; + #include "k3-j721e-common-proc-board-u-boot.dtsi" -- 2.25.1