From: Sinthu Raja <[email protected]>
Add pinmux required to bring out the i2c and gpios on 40-pin RPi
expansion header on the AM68 SK board.
Signed-off-by: Sinthu Raja <[email protected]>
---
Changes in V4:
* Correct the pinctrl node offsets as per the newly split wkup_pmx*
and main_pmx* nodes.
.../boot/dts/ti/k3-am68-sk-base-board.dts | 77 ++++++++++++++++++-
1 file changed, 76 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index a811a512262b..ff859b78def7 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -171,6 +171,32 @@ J721S2_IOPAD(0x0a0, PIN_INPUT, 0) /* (AB25) MCASP0_AXR12.MCAN7_RX */
J721S2_IOPAD(0x09c, PIN_INPUT, 0) /* (T24) MCASP0_AXR11.MCAN7_TX */
>;
};
+
+ main_i2c4_pins_default: main-i2c4-pins-default {
+ pinctrl-single,pins = <
+ J721S2_IOPAD(0x010, PIN_INPUT_PULLUP, 8) /* (AF28) MCAN13_RX.I2C4_SDA */
+ J721S2_IOPAD(0x014, PIN_INPUT_PULLUP, 8) /* (AD25) MCAN14_TX.I2C4_SCL */
+ >;
+ };
+
+ rpi_header_gpio0_pins_default: rpi-header-gpio0-pins-default {
+ pinctrl-single,pins = <
+ J721S2_IOPAD(0x0a8, PIN_INPUT, 7) /* (U24) MCASP0_AXR14.GPIO0_42 */
+ J721S2_IOPAD(0x090, PIN_INPUT, 7) /* (W24) MCASP0_AXR8.GPIO0_36 */
+ J721S2_IOPAD(0x0bc, PIN_INPUT, 7) /* (V28) MCASP1_AFSX.GPIO0_47 */
+ J721S2_IOPAD(0x06c, PIN_INPUT, 7) /* (V26) MCAN1_TX.GPIO0_27 */
+ J721S2_IOPAD(0x004, PIN_INPUT, 7) /* (W25) MCAN12_TX.GPIO0_1 */
+ J721S2_IOPAD(0x008, PIN_INPUT, 7) /* (AC24) MCAN12_RX.GPIO0_2 */
+ J721S2_IOPAD(0x0b8, PIN_INPUT, 7) /* (AA24) MCASP1_ACLKX.GPIO0_46 */
+ J721S2_IOPAD(0x00c, PIN_INPUT, 7) /* (AE28) MCAN13_TX.GPIO0_3 */
+ J721S2_IOPAD(0x034, PIN_INPUT, 7) /* (AD24) PMIC_WAKE0.GPIO0_13 */
+ J721S2_IOPAD(0x0a4, PIN_INPUT, 7) /* (T23) MCASP0_AXR13.GPIO0_41 */
+ J721S2_IOPAD(0x0c0, PIN_INPUT, 7) /* (T28) MCASP1_AXR0.GPIO0_48 */
+ J721S2_IOPAD(0x0b4, PIN_INPUT, 7) /* (U25) MCASP1_AXR4.GPIO0_45 */
+ J721S2_IOPAD(0x0cc, PIN_INPUT, 7) /* (AE27) SPI0_CS0.GPIO0_51 */
+ J721S2_IOPAD(0x08c, PIN_INPUT, 7) /* (T25) MCASP0_AXR7.GPIO0_35 */
+ >;
+ };
};
&main_pmx1 {
@@ -221,12 +247,46 @@ J721S2_WKUP_IOPAD(0x068, PIN_OUTPUT, 0) /* (C23) WKUP_GPIO0_4.MCU_MCAN1_TX*/
>;
};
+ mcu_i2c0_pins_default: mcu-i2c0-pins-default {
+ pinctrl-single,pins = <
+ J721S2_WKUP_IOPAD(0x098, PIN_INPUT, 0) /*(H24) WKUP_GPIO0_63.MCU_I2C0_SCL*/
+ J721S2_WKUP_IOPAD(0x09C, PIN_INPUT, 0) /*(H27) WKUP_GPIO0_64.MCU_I2C0_SDA*/
+ >;
+ };
+
mcu_i2c1_pins_default: mcu-i2c1-pins-default {
pinctrl-single,pins = <
J721S2_WKUP_IOPAD(0x078, PIN_INPUT, 0) /* (F24) WKUP_GPIO0_8.MCU_I2C1_SCL */
J721S2_WKUP_IOPAD(0x07c, PIN_INPUT, 0) /* (H26) WKUP_GPIO0_9.MCU_I2C1_SDA */
>;
};
+
+ mcu_rpi_header_gpio0_pins0_default: mcu-rpi-header-gpio0-pins0-default {
+ pinctrl-single,pins = <
+ J721S2_WKUP_IOPAD(0x118, PIN_INPUT, 7) /* (G25) WKUP_GPIO0_66 */
+ J721S2_WKUP_IOPAD(0x05C, PIN_INPUT, 7) /* (E24) MCU_SPI1_D0.WKUP_GPIO0_1 */
+ J721S2_WKUP_IOPAD(0x060, PIN_INPUT, 7) /* (C28) MCU_SPI1_D1.WKUP_GPIO0_2 */
+ J721S2_WKUP_IOPAD(0x058, PIN_INPUT, 7) /* (D26) MCU_SPI1_CLK.WKUP_GPIO0_0 */
+ J721S2_WKUP_IOPAD(0x094, PIN_INPUT, 7) /* (D25) MCU_SPI1_CS2.WKUP_GPIO0_15*/
+ J721S2_WKUP_IOPAD(0x0B8, PIN_INPUT, 7) /* (G27) WKUP_GPIO0_56 */
+ J721S2_WKUP_IOPAD(0x114, PIN_INPUT, 7) /* (J26) WKUP_GPIO0_57 */
+ J721S2_WKUP_IOPAD(0x11C, PIN_INPUT, 7) /* (J27) WKUP_GPIO0_67 */
+ J721S2_WKUP_IOPAD(0x064, PIN_INPUT, 7) /* (C27) MCU_SPI1_CS0.WKUP_GPIO0_3 */
+ >;
+ };
+};
+
+&wkup_pmx3 {
+ mcu_rpi_header_gpio0_pins1_default: mcu-rpi-header-gpio0-pins1-default {
+ pinctrl-single,pins = <
+ J721S2_WKUP_IOPAD(0x000, PIN_INPUT, 7) /* (K26) WKUP_GPIO0_49 */
+ >;
+ };
+};
+
+&main_gpio0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&rpi_header_gpio0_pins_default>;
};
&main_gpio2 {
@@ -242,7 +302,8 @@ &main_gpio6 {
};
&wkup_gpio0 {
- status = "disabled";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcu_rpi_header_gpio0_pins0_default &mcu_rpi_header_gpio0_pins1_default>;
};
&wkup_gpio1 {
@@ -278,6 +339,20 @@ exp1: gpio@21 {
};
};
+&main_i2c4 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c4_pins_default>;
+ clock-frequency = <400000>;
+};
+
+&mcu_i2c0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcu_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};
+
&main_sdhci0 {
/* Unused */
status = "disabled";
--
2.36.1