arm: dts: k3-am654-base-board: Enable wkup_i2c0 across all boot stages
To enable the use of an EEPROM-based board detection scheme we need to
be able to access the I2C bus associated with the EEPROMs across all
3 stages of U-Boot: R5 SPL, A53 SPL, and A53 U-Boot (proper). So go
ahead and add/update the wkup_i2c0 peripheral module DTS definitions
and its associated pinmux node accordingly.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/dts/k3-am654-base-board.dts b/arch/arm/dts/k3-am654-base-board.dts
index ab23391..248d60e 100644
--- a/arch/arm/dts/k3-am654-base-board.dts
+++ b/arch/arm/dts/k3-am654-base-board.dts
@@ -55,6 +55,15 @@
};
};
+&wkup_pmx0 {
+ wkup_i2c0_pins_default: wkup-i2c0-pins-default {
+ pinctrl-single,pins = <
+ AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */
+ AM65X_WKUP_IOPAD(0x00e4, PIN_INPUT, 0) /* (AD6) WKUP_I2C0_SDA */
+ >;
+ };
+};
+
&sdhci0 {
pinctrl-names = "default";
pinctrl-0 = <&main_mmc0_pins_default>;
@@ -62,3 +71,9 @@
non-removable;
ti,driver-strength-ohm = <50>;
};
+
+&wkup_i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};