On 09:43-20230503, Udit Kumar wrote:
Upstream linux patch posted at https://lore.kernel.org/all/20230419040007.3022780-3-u-kumar1@ti.com/
a) link here does'nt belong to commit message. b) Let this be accepted into k.org master prior to u-boot sync.
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-kumar1@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