From: Magnus Damm <damm+renesas@xxxxxxxxxxxxx>
Drive the NOR flash chips via SPI bitbang instead of via the two
channels of QSPI hardware. This is useful to test the on-chip GPIO
devices.
Not-Yet-Signed-off-by: Magnus Damm <damm+renesas@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 36 ++++++++++++++++++++++++
1 file changed, 36 insertions(+)
--- 0002/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
+++ work/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts 2018-01-19 03:47:16.380607110 +0900
@@ -31,6 +31,42 @@
/* first 128MB is reserved for secure area. */
reg = <0x0 0x48000000 0x0 0x38000000>;
};
+
+ spi_flash@0 {
+ compatible = "spi-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpio-sck = <&gpio5 0 0>;
+ gpio-mosi = <&gpio5 1 0>;
+ gpio-miso = <&gpio5 2 0>;
+ cs-gpios = <&gpio5 5 0>;
+ num-chipselects = <1>;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <30000000>;
+ };
+ };
+
+ spi_flash@1 {
+ compatible = "spi-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpio-sck = <&gpio5 6 0>;
+ gpio-mosi = <&gpio5 7 0>;
+ gpio-miso = <&gpio5 8 0>;
+ cs-gpios = <&gpio5 11 0>;
+ num-chipselects = <1>;
+
+ flash@1 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <30000000>;
+ };
+ };
};
&avb {
