[PATCH 3/5] riscv: dts: spacemit: k3-com260: Add SPI NOR flash

[Troy Mitchell <troy.mitchell@linux.spacemit.com>]

The K3 CoM260 module carries the SPI NOR flash that holds the boot
firmware. Enable the QSPI controller with its 1.8 V pin configuration
and describe the flash together with the partition layout used by the
boot firmware, so that every carrier using the module gets access to
it.

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
 arch/riscv/boot/dts/spacemit/k3-com260.dtsi | 55 +++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
index f2df797a2c80..f94607cb2eeb 100644
--- a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
@@ -233,6 +233,61 @@ phy1: ethernet-phy@1 {
 	};
 };
 
+&qspi_cfg {
+	qspi-pins {
+		power-source = <1800>;
+	};
+
+	qspi-cs0-pins {
+		power-source = <1800>;
+	};
+};
+
+&qspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&qspi_cfg>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <26500000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			bootinfo@0 {
+				reg = <0x0 0x20000>;
+			};
+
+			fsbl@20000 {
+				reg = <0x20000 0x80000>;
+			};
+
+			env@a0000 {
+				reg = <0xa0000 0x10000>;
+			};
+
+			esos@b0000 {
+				reg = <0xb0000 0x100000>;
+			};
+
+			opensbi@1b0000 {
+				reg = <0x1b0000 0x60000>;
+			};
+
+			uboot@210000 {
+				reg = <0x210000 0x5f0000>;
+			};
+		};
+	};
+};
+
 &sdhci0 {
 	pinctrl-names = "default","uhs";
 	pinctrl-0 = <&mmc1_cfg>;

-- 
2.56.0