ARM: dts: renesas: r9a06g032-rzn1d400-db: Add QSPI node including NOR flash

Enable the QSPI controller to access the connected SPI NOR flash. The
NOR datasheet may suggest faster tuning parameters but those did not
work on my board.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260305220023.28257-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
index 4a72aa7663f252cfadf3ad02498e76d70a283dfe..b720c001e77680a9c5310719c509e375a6b104b1 100644 (file)
--- a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
+++ b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
@@ -300,6 +300,84 @@
                pinmux = <RZN1_PINMUX(152, RZN1_FUNC_MDIO1_SWITCH)>,
                         <RZN1_PINMUX(153, RZN1_FUNC_MDIO1_SWITCH)>;
        };
+
+       pins_qspi0: pins-qspi0 {
+               pinmux = <RZN1_PINMUX(74, RZN1_FUNC_QSPI)>,
+                        <RZN1_PINMUX(75, RZN1_FUNC_QSPI)>,
+                        <RZN1_PINMUX(76, RZN1_FUNC_QSPI)>,
+                        <RZN1_PINMUX(77, RZN1_FUNC_QSPI)>,
+                        <RZN1_PINMUX(78, RZN1_FUNC_QSPI)>,
+                        <RZN1_PINMUX(79, RZN1_FUNC_QSPI)>;
+               bias-disable;
+       };
+};
+
+&qspi0 {
+       pinctrl-0 = <&pins_qspi0>;
+       pinctrl-names = "default";
+       status = "okay";
+       bootph-all;
+
+       flash@0 {
+               reg = <0>;
+               compatible = "jedec,spi-nor";
+               spi-max-frequency = <62500000>;
+               spi-rx-bus-width = <4>;
+               spi-tx-bus-width = <4>;
+               cdns,read-delay = <1>;
+               cdns,tshsl-ns = <200>;
+               cdns,tsd2d-ns = <255>;
+               cdns,tchsh-ns = <20>;
+               cdns,tslch-ns = <20>;
+               bootph-all;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               /* 64KiB */
+                               label = "spl";
+                               reg = <0x0000000 0x00010000>;
+                       };
+                       partition@10000 {
+                               /* 64KiB */
+                               label = "pkgt";
+                               reg = <0x0010000 0x00010000>;
+                       };
+                       partition@20000 {
+                               /* 512KiB */
+                               label = "u-boot";
+                               reg = <0x0020000 0x00080000>;
+                       };
+                       partition@a0000 {
+                               /* 64KiB */
+                               label = "env";
+                               reg = <0x00a0000 0x00010000>;
+                       };
+                       partition@b0000 {
+                               /* 128KiB */
+                               label = "dtb";
+                               reg = <0x00b0000 0x00020000>;
+                       };
+                       partition@d0000 {
+                               /* 1MiB */
+                               label = "cm3";
+                               reg = <0x00d0000 0x00100000>;
+                       };
+                       partition@1d0000 {
+                               /* 6MiB */
+                               label = "kernel";
+                               reg = <0x01d0000 0x00600000>;
+                       };
+                       partition@7d0000 {
+                               /* Remaining */
+                               label = "data";
+                               reg = <0x07d0000 0x1830000>;
+                       };
+               };
+       };
 };
 
 &rtc0 {