Upstream linux patch posted at https://lore.kernel.org/all/20230419040007.3022780-3-u-kum...@ti.com/
This patch enables wkup_i2c0 node in board dts file along with pin mux and speed. Also enables underneath eeprom CAV24C256WE. J7200 Datasheet (Table 6-106, Section 6.4 Pin Multiplexing) : https://www.ti.com/lit/ds/symlink/dra821u.pdf J7200 User Guide (Section 4.3, Table 4-2) : https://www.ti.com/lit/ug/spruiw7a/spruiw7a.pdf Signed-off-by: Udit Kumar <u-kum...@ti.com> --- .../arm/dts/k3-j7200-r5-common-proc-board.dts | 7 ------- arch/arm/dts/k3-j7200-som-p0.dtsi | 21 +++++++++++++++++++ 2 files changed, 21 insertions(+), 7 deletions(-) diff --git a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts index e62f9218e8..9d9ffcbb89 100644 --- a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts +++ b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts @@ -126,13 +126,6 @@ >; }; - wkup_i2c0_pins_default: wkup-i2c0-pins-default { - pinctrl-single,pins = < - J721E_WKUP_IOPAD(0x100, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */ - J721E_WKUP_IOPAD(0x104, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */ - >; - }; - mcu_fss0_hpb0_pins_default: mcu-fss0-hpb0-pins-default { pinctrl-single,pins = < J721E_WKUP_IOPAD(0x0, PIN_OUTPUT, 1) /* (E20) MCU_OSPI0_CLK.MCU_HYPERBUS0_CK */ diff --git a/arch/arm/dts/k3-j7200-som-p0.dtsi b/arch/arm/dts/k3-j7200-som-p0.dtsi index fa44ed4c17..2694241547 100644 --- a/arch/arm/dts/k3-j7200-som-p0.dtsi +++ b/arch/arm/dts/k3-j7200-som-p0.dtsi @@ -118,6 +118,15 @@ }; }; +&wkup_pmx2 { + wkup_i2c0_pins_default: wkup-i2c0-pins-default { + pinctrl-single,pins = < + J721E_WKUP_IOPAD(0x98, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */ + J721E_WKUP_IOPAD(0x9c, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */ + >; + }; +}; + &main_pmx0 { main_i2c0_pins_default: main-i2c0-pins-default { pinctrl-single,pins = < @@ -214,6 +223,18 @@ }; }; +&wkup_i2c0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&wkup_i2c0_pins_default>; + clock-frequency = <400000>; + + eeprom@50 { + compatible = "atmel,24c256"; + reg = <0x50>; + }; +}; + &ospi0 { pinctrl-names = "default"; pinctrl-0 = <&mcu_fss0_ospi0_pins_default>; -- 2.34.1
