+++ /dev/null
-From 4d19be9132ca10cf582450a86dcb2c41f227f589 Mon Sep 17 00:00:00 2001
-From: Ed Spiridonov <edo.rus@gmail.com>
-Date: Tue, 10 Dec 2019 22:45:04 +0300
-Subject: [PATCH] Add universal device tree overlay for SPI devices
-
-Just specify the SPI address and device name ("compatible" property).
-This overlay lacks any device-specific parameter support!
-(some of them could be added later)
-
-Examples:
-1. SPI NOR flash on spi0.1, maximum SPI clock frequency 45MHz:
- dtoverlay=anyspi:spi0-1,dev="jedec,spi-nor",speed=45000000
-2. MCP3204 ADC on spi1.2, maximum SPI clock frequency 500kHz:
- dtoverlay=anyspi:spi1-2,dev="microchip,mcp3204"
-
-Signed-off-by: Ed Spiridonov <edo.rus@gmail.com>
----
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 23 ++
- arch/arm/boot/dts/overlays/anyspi-overlay.dts | 205 ++++++++++++++++++
- 3 files changed, 229 insertions(+)
- create mode 100755 arch/arm/boot/dts/overlays/anyspi-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -15,6 +15,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
- allo-katana-dac-audio.dtbo \
- allo-piano-dac-pcm512x-audio.dtbo \
- allo-piano-dac-plus-pcm512x-audio.dtbo \
-+ anyspi.dtbo \
- apds9960.dtbo \
- applepi-dac.dtbo \
- at86rf233.dtbo \
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -441,6 +441,29 @@ Params: 24db_digital_gain Allow ga
- better voice quality. (default Off)
-
-
-+Name: anyspi
-+Info: Universal device tree overlay for SPI devices
-+
-+ Just specify the SPI address and device name ("compatible" property).
-+ This overlay lacks any device-specific parameter support!
-+
-+ For devices on spi1 or spi2, the interfaces should be enabled
-+ with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
-+
-+ Examples:
-+ 1. SPI NOR flash on spi0.1, maximum SPI clock frequency 45MHz:
-+ dtoverlay=anyspi:spi0-1,dev="jedec,spi-nor",speed=45000000
-+ 2. MCP3204 ADC on spi1.2, maximum SPI clock frequency 500kHz:
-+ dtoverlay=anyspi:spi1-2,dev="microchip,mcp3204"
-+Load: dtoverlay=anyspi,<param>=<val>
-+Params: spi<n>-<m> Configure device at spi<n>, cs<m>
-+ (boolean, required)
-+ dev Set device name to search compatible module
-+ (string, required)
-+ speed Set SPI clock frequency in Hz
-+ (integer, optional, default 500000)
-+
-+
- Name: apds9960
- Info: Configures the AVAGO APDS9960 digital proximity, ambient light, RGB and
- gesture sensor
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/anyspi-overlay.dts
-@@ -0,0 +1,205 @@
-+/*
-+ * Universal device tree overlay for SPI devices
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+ compatible = "brcm,bcm2835";
-+
-+ fragment@0 {
-+ target = <&spidev0>;
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@1 {
-+ target = <&spidev1>;
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@2 {
-+ target-path = "spi1/spidev@0";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@3 {
-+ target-path = "spi1/spidev@1";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@4 {
-+ target-path = "spi1/spidev@2";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@5 {
-+ target-path = "spi2/spidev@0";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@6 {
-+ target-path = "spi2/spidev@1";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@7 {
-+ target-path = "spi2/spidev@2";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@8 {
-+ target = <&spi0>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_00: anyspi@0 {
-+ reg = <0>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@9 {
-+ target = <&spi0>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_01: anyspi@1 {
-+ reg = <1>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@10 {
-+ target = <&spi1>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_10: anyspi@0 {
-+ reg = <0>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@11 {
-+ target = <&spi1>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_11: anyspi@1 {
-+ reg = <1>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@12 {
-+ target = <&spi1>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_12: anyspi@2 {
-+ reg = <2>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@13 {
-+ target = <&spi2>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_20: anyspi@0 {
-+ reg = <0>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@14 {
-+ target = <&spi2>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_21: anyspi@1 {
-+ reg = <1>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@15 {
-+ target = <&spi2>;
-+ __dormant__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ anyspi_22: anyspi@2 {
-+ reg = <2>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ __overrides__ {
-+ spi0-0 = <0>, "+0+8";
-+ spi0-1 = <0>, "+1+9";
-+ spi1-0 = <0>, "+2+10";
-+ spi1-1 = <0>, "+3+11";
-+ spi1-2 = <0>, "+4+12";
-+ spi2-0 = <0>, "+5+13";
-+ spi2-1 = <0>, "+6+14";
-+ spi2-2 = <0>, "+7+15";
-+ dev = <&anyspi_00>,"compatible",
-+ <&anyspi_01>,"compatible",
-+ <&anyspi_10>,"compatible",
-+ <&anyspi_11>,"compatible",
-+ <&anyspi_12>,"compatible",
-+ <&anyspi_20>,"compatible",
-+ <&anyspi_21>,"compatible",
-+ <&anyspi_22>,"compatible";
-+ speed = <&anyspi_00>, "spi-max-frequency:0",
-+ <&anyspi_01>, "spi-max-frequency:0",
-+ <&anyspi_10>, "spi-max-frequency:0",
-+ <&anyspi_11>, "spi-max-frequency:0",
-+ <&anyspi_12>, "spi-max-frequency:0",
-+ <&anyspi_20>, "spi-max-frequency:0",
-+ <&anyspi_21>, "spi-max-frequency:0",
-+ <&anyspi_22>, "spi-max-frequency:0";
-+ };
-+};
projects / openwrt / staging / chunkeey.git / blobdiff