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 <dannenb...@ti.com>
---
arch/arm/dts/k3-am65.dtsi | 1 +
arch/arm/dts/k3-am654-base-board-u-boot.dtsi | 12 ++++++++++++
arch/arm/dts/k3-am654-base-board.dts | 15 +++++++++++++++
arch/arm/dts/k3-am654-r5-base-board.dts | 13 +++++++++++++
4 files changed, 41 insertions(+)
diff --git a/arch/arm/dts/k3-am65.dtsi b/arch/arm/dts/k3-am65.dtsi
index 5bcf6e0693..50f4be2047 100644
--- a/arch/arm/dts/k3-am65.dtsi
+++ b/arch/arm/dts/k3-am65.dtsi
@@ -8,6 +8,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/pinctrl/k3.h>
/ {
model = "Texas Instruments K3 AM654 SoC";
diff --git a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
index c802f0b2b7..eb057e7a96 100644
--- a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
+++ b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
@@ -117,6 +117,14 @@
u-boot,dm-spl;
};
+&wkup_pmx0 {
+ u-boot,dm-spl;
+
+ wkup_i2c0_pins_default {
+ u-boot,dm-spl;
+ };
+};
+
&main_pmx0 {
u-boot,dm-spl;
main_uart0_pins_default: main_uart0_pins_default {
@@ -189,3 +197,7 @@
pinctrl-0 = <&main_mmc1_pins_default>;
sdhci-caps-mask = <0x7 0x0>;
};
+
+&wkup_i2c0 {
+ u-boot,dm-spl;
+};
diff --git a/arch/arm/dts/k3-am654-base-board.dts
b/arch/arm/dts/k3-am654-base-board.dts
index af6956fdc1..e31411e39d 100644
--- a/arch/arm/dts/k3-am654-base-board.dts
+++ b/arch/arm/dts/k3-am654-base-board.dts
@@ -34,3 +34,18 @@
};
};
};
+
+&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 */
+ >;
+ };
+};
+
+&wkup_i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};
diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts
b/arch/arm/dts/k3-am654-r5-base-board.dts
index a07038be70..1ef525ea69 100644
--- a/arch/arm/dts/k3-am654-r5-base-board.dts
+++ b/arch/arm/dts/k3-am654-r5-base-board.dts
@@ -130,6 +130,13 @@
>;
u-boot,dm-spl;
};
+
+ 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 */
+ >;
+ };
};
&memorycontroller {
@@ -137,3 +144,9 @@
pinctrl-names = "default";
pinctrl-0 = <&wkup_vtt_pins_default>;
};
+
+&wkup_i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};
--
2.17.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
