ARM: rmobile: beacon-renesom: Enable QSPI NOR Flash
There is a QSPI NOR flash part on the board. Because this chip isn't
yet supported in Linux, but it is supported in U-Boot, and the
face that the RPC_SPI compatible names are different in U-Boot and
Linux, the device tree updates are confined to -u-boot.dtsi files.
In order to use the QSPI, TF-A must leave RPC unlocked by compiling
TF-A with RZG_RPC_HYPERFLASH_LOCKED=0.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Biju Bas <biju.das.jz@bp.renesas.com>
diff --git a/arch/arm/dts/beacon-renesom-som.dtsi b/arch/arm/dts/beacon-renesom-som.dtsi
index 9565495..d30bab3 100644
--- a/arch/arm/dts/beacon-renesom-som.dtsi
+++ b/arch/arm/dts/beacon-renesom-som.dtsi
@@ -7,6 +7,10 @@
#include <dt-bindings/clk/versaclock.h>
/ {
+ aliases {
+ spi0 = &rpc;
+ };
+
memory@48000000 {
device_type = "memory";
/* first 128MB is reserved for secure area. */
@@ -275,6 +279,25 @@
};
};
+&rpc {
+ compatible = "renesas,rcar-gen3-rpc";
+ num-cs = <1>;
+ spi-max-frequency = <40000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ flash0: spi-flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0>;
+ compatible = "spi-flash", "jedec,spi-nor";
+ spi-max-frequency = <40000000>;
+ spi-tx-bus-width = <1>;
+ spi-rx-bus-width = <1>;
+ };
+};
+
&scif_clk {
clock-frequency = <14745600>;
};