[PATCH] arm64: dts: renesas: rzg2ul-smarc-som: Enable serial NOR flash

[Biju Das <biju.das.jz@xxxxxxxxxxxxxx>]

Enable Renesas at25ql128a flash connected to QSPI0. Also disable
the node from rzfive-smarc-som as it is untested.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
logs:
root@smarc-rzg2ul:~# modprobe spi-rpc-if
[  105.775964] spi-nor spi1.0: spi-nor-generic (16384 Kbytes)
[  105.823268] 2 fixed-partitions partitions found on MTD device spi1.0
[  105.829767] Creating 2 MTD partitions on "spi1.0":
[  105.835867] 0x000000000000-0x000000200000 : "boot"
[  105.849639] 0x000000200000-0x000001000000 : "user"

# cat /sys/devices/platform/soc/10060000.spi/rpc-if-spi/spi_master/spi1/spi1.0/spi-nor/jedec_id
1f42181f4218
# cat /sys/devices/platform/soc/10060000.spi/rpc-if-spi/spi_master/spi1/spi1.0/spi-nor/partname
spi-nor-generic

Read/Write test
root@smarc-rzg2ul:/cip-test-scripts# ./rpcif_t_001.sh

EXIT|PASS|rpcif_t_001.sh|[00:03:25] ||
---
 .../boot/dts/renesas/rzg2ul-smarc-som.dtsi    | 44 +++++++++++++++++++
 .../boot/dts/renesas/rzfive-smarc-som.dtsi    |  4 ++
 2 files changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi
index 49ecd33aeeb8..d1a00f1d1b8c 100644
--- a/arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi
@@ -179,6 +179,18 @@ eth1_pins: eth1 {
 			 <RZG2L_PORT_PINMUX(18, 5, 1)>; /* IRQ7 */
 	};
 
+	qspi0_pins: qspi0 {
+		qspi0-data {
+			pins = "QSPI0_IO0", "QSPI0_IO1", "QSPI0_IO2", "QSPI0_IO3";
+			power-source = <1800>;
+		};
+
+		qspi0-ctrl {
+			pins = "QSPI0_SPCLK", "QSPI0_SSL";
+			power-source = <1800>;
+		};
+	};
+
 	sdhi0_emmc_pins: sd0emmc {
 		sd0_emmc_data {
 			pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3",
@@ -230,6 +242,38 @@ sd0_mux_uhs {
 	};
 };
 
+&sbc {
+	pinctrl-0 = <&qspi0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+
+		spi-cpol;
+		spi-cpha;
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			boot@0 {
+				reg = <0x00000000 0x200000>;
+				read-only;
+			};
+			user@200000 {
+				reg = <0x200000 0xE00000>;
+			};
+		};
+	};
+};
+
 #if (SW_SW0_DEV_SEL)
 &sdhi0 {
 	pinctrl-0 = <&sdhi0_emmc_pins>;
diff --git a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
index d6f18754eb5d..56a907180485 100644
--- a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
+++ b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
@@ -40,6 +40,10 @@ phy1: ethernet-phy@7 {
 	};
 };
 
+&sbc {
+	status = "disabled";
+};
+
 &sdhi0 {
 	status = "disabled";
 };
-- 
2.25.1