build/patch/kernel/archive/rockchip64-4.4/check/0058-arm64-overlays-rockpi4-add-spi1-flash-support.patch

74 lines
2.1 KiB
Diff

From 0a0b9c2ad766b0f2789c12abc6d78cd97b57bf22 Mon Sep 17 00:00:00 2001
From: Stephen <stephen@vamrs.com>
Date: Sat, 15 Jun 2019 11:35:35 +0800
Subject: [PATCH 58/97] arm64: overlays-rockpi4: add spi1 flash support
Signed-off-by: Stephen <stephen@vamrs.com>
---
.../dts/rockchip/overlays-rockpi4/Makefile | 3 +-
.../overlays-rockpi4/spi1-flash-overlay.dts | 38 +++++++++++++++++++
2 files changed, 40 insertions(+), 1 deletion(-)
create mode 100644 arch/arm64/boot/dts/rockchip/overlays-rockpi4/spi1-flash-overlay.dts
diff --git a/arch/arm64/boot/dts/rockchip/overlays-rockpi4/Makefile b/arch/arm64/boot/dts/rockchip/overlays-rockpi4/Makefile
index fa22f1b499ef..aeeb2218930c 100644
--- a/arch/arm64/boot/dts/rockchip/overlays-rockpi4/Makefile
+++ b/arch/arm64/boot/dts/rockchip/overlays-rockpi4/Makefile
@@ -9,7 +9,8 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
devspi2.dtbo \
pcie-gen2.dtbo \
spi1-waveshare35c.dtbo \
- spi1-waveshare35b-v2.dtbo
+ spi1-waveshare35b-v2.dtbo \
+ spi1-flash.dtbo
targets += dtbs dtbs_install
targets += $(dtbo-y)
diff --git a/arch/arm64/boot/dts/rockchip/overlays-rockpi4/spi1-flash-overlay.dts b/arch/arm64/boot/dts/rockchip/overlays-rockpi4/spi1-flash-overlay.dts
new file mode 100644
index 000000000000..bca5891a8594
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlays-rockpi4/spi1-flash-overlay.dts
@@ -0,0 +1,38 @@
+//This devicetree overlay is used to boot ROCK Pi 4 from SPI Flash device.
+//Test device: GD25Q127CSIG
+/dts-v1/;
+/plugin/;
+
+/ {
+ model = "ROCK PI 4B";
+ compatible = "rockchip,rockpi","rockchip,rk3399";
+
+ fragment@0 {
+ target = <&spi1>;
+
+ __overlay__ {
+ status = "okay";
+ max-freq = <10000000>;
+
+ spiflash: spi-flash@0 {
+ #address-cells = <0x1>;
+ #size-cells = <1>;
+ compatible = "jedec,spi-nor";
+ reg = <0x0>;
+ spi-max-frequency = <10000000>;
+ status = "okay";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ loader@0 {
+ label = "loader";
+ reg = <0x0 0x400000>;
+ };
+ };
+ };
+ };
+ };
+};
--
2.25.1