[PATCH] arm64: dts: ti: k3-am642-evm: Add support for SPI EEPROM

[Aswath Govindraju]

Add pinmux details and device tree node for the EEPROM attached to SPI0
module in main domain.

Signed-off-by: Aswath Govindraju <a-govindraju at ti.com>
---

This patch depends on,
https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210301055109.17626-3-a-govindraju@ti.com/

 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index bfd849a29655..bc5bd7f896ab 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -139,6 +139,15 @@
 			AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */
 		>;
 	};
+
+	main_spi0_pins_default: main-spi0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0210, PIN_INPUT, 0) /* (D13) SPI0_CLK */
+			AM64X_IOPAD(0x0208, PIN_OUTPUT, 0) /* (D12) SPI0_CS0 */
+			AM64X_IOPAD(0x0214, PIN_OUTPUT, 0) /* (A13) SPI0_D0 */
+			AM64X_IOPAD(0x0218, PIN_INPUT, 0) /* (A14) SPI0_D1 */
+		>;
+	};
 };
 
 &main_uart0 {
@@ -245,6 +254,19 @@
 	pinctrl-0 = <&main_usb0_pins_default>;
 };
 
+&main_spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_spi0_pins_default>;
+	ti,pindir-d0-out-d1-in = <1>;
+	eeprom at 0 {
+		compatible = "microchip,93lc46b";
+		reg = <0>;
+		spi-max-frequency = <1000000>;
+		spi-cs-high;
+		data-size = <16>;
+	};
+};
+
 &sdhci0 {
 	/* emmc */
 	bus-width = <8>;
-- 
2.17.1