[PATCH 2/3] riscv: dts: sophgo: Add spi nor flash controller node

[Kongyang Liu]

Add spi nor flash controller node for cv18xx SoCs

Signed-off-by: Kongyang Liu <seashell11234...@gmail.com>
---

 arch/riscv/dts/cv1800b-milkv-duo.dts | 13 +++++++++++++
 arch/riscv/dts/cv18xx.dtsi           | 17 +++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/arch/riscv/dts/cv1800b-milkv-duo.dts 
b/arch/riscv/dts/cv1800b-milkv-duo.dts
index 94e64ddce8..dd2c9cd17c 100644
--- a/arch/riscv/dts/cv1800b-milkv-duo.dts
+++ b/arch/riscv/dts/cv1800b-milkv-duo.dts
@@ -41,6 +41,19 @@
        no-sdio;
 };
 
+&spif {
+       status = "okay";
+
+       spiflash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <75000000>;
+               spi-tx-bus-width = <4>;
+               spi-rx-bus-width = <4>;
+               m25p,fast-read;
+       };
+}
+
 &uart0 {
        status = "okay";
 };
diff --git a/arch/riscv/dts/cv18xx.dtsi b/arch/riscv/dts/cv18xx.dtsi
index ec99c4deeb..1623e354df 100644
--- a/arch/riscv/dts/cv18xx.dtsi
+++ b/arch/riscv/dts/cv18xx.dtsi
@@ -52,6 +52,13 @@
                #clock-cells = <0>;
        };
 
+       spif_clk: spi-flash-clock {
+               compatible = "fixed-clock";
+               clock-frequency = <300000000>;
+               clock-output-names = "spif_clk";
+               #clock-cells = <0>;
+       };
+
        soc {
                compatible = "simple-bus";
                interrupt-parent = <&plic>;
@@ -197,6 +204,16 @@
                        status = "disabled";
                };
 
+               spif: spi-nor@10000000 {
+                       compatible = "sophgo,cv1800b-spif";
+                       reg = <0x10000000 0x10000000>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       clocks = <&spif_clk>;
+                       interrupts = <95 IRQ_TYPE_LEVEL_HIGH>;
+                       status = "disabled";
+               };
+
                plic: interrupt-controller@70000000 {
                        reg = <0x70000000 0x4000000>;
                        interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
-- 
2.41.0