60 lines
1.7 KiB
Diff
60 lines
1.7 KiB
Diff
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From a4d7117cd49715e3114d30c7d7b303dbd4f45f76 Mon Sep 17 00:00:00 2001
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From: brian <brian@vamrs.com>
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Date: Fri, 15 Mar 2019 19:41:30 +0800
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Subject: [PATCH 39/97] arm64: overlays: add spi dev for rockpi4
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---
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.../arm64/boot/dts/rockchip/overlays/Makefile | 3 ++-
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.../dts/rockchip/overlays/devspi-overlay.dts | 25 +++++++++++++++++++
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2 files changed, 27 insertions(+), 1 deletion(-)
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create mode 100644 arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts
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diff --git a/arch/arm64/boot/dts/rockchip/overlays/Makefile b/arch/arm64/boot/dts/rockchip/overlays/Makefile
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index 0e06b7e1748f..0c691d2237af 100644
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--- a/arch/arm64/boot/dts/rockchip/overlays/Makefile
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+++ b/arch/arm64/boot/dts/rockchip/overlays/Makefile
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@@ -4,7 +4,8 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
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console-on-uart4.dtbo \
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console-disabled.dtbo \
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two-color-led.dtbo \
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- at24c02.dtbo
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+ at24c02.dtbo \
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+ devspi.dtbo
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targets += dtbs dtbs_install
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targets += $(dtbo-y)
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diff --git a/arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts b/arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts
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new file mode 100644
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index 000000000000..a3972b856660
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--- /dev/null
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+++ b/arch/arm64/boot/dts/rockchip/overlays/devspi-overlay.dts
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@@ -0,0 +1,25 @@
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ model = "ROCK PI 4B";
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+ compatible = "rockchip,rockpi","rockchip,rk3399";
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+
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+ fragment@0 {
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+ target = <&spi1>;
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+
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+ __overlay__ {
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+ max-freq = <50000000>;
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+ dmas = <&dmac_peri 10>, <&dmac_peri 11>;
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+ dma-names = "tx","rx";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ devspi@0 {
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+ status = "okay";
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+ reg = <0>;
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+ compatible ="rockchip,spidev";
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+ spi-max-frequency = <50000000>;
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+ };
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+ };
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+ };
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+};
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--
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2.25.1
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