diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.1/0197-BCM270X_DT-Add-at86rf233-overlay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.1/0197-BCM270X_DT-Add-at86rf233-overlay.patch | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.1/0197-BCM270X_DT-Add-at86rf233-overlay.patch b/target/linux/brcm2708/patches-4.1/0197-BCM270X_DT-Add-at86rf233-overlay.patch new file mode 100644 index 0000000..3ede6a5 --- /dev/null +++ b/target/linux/brcm2708/patches-4.1/0197-BCM270X_DT-Add-at86rf233-overlay.patch @@ -0,0 +1,130 @@ +From 7b82355fa657220c9d5e72f0aa5228f0d76819fa Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Mon, 5 Oct 2015 10:47:45 +0100 +Subject: [PATCH 197/203] BCM270X_DT: Add at86rf233 overlay + +Add an overlay to support the Atmel AT86RF233 WPAN transceiver on spi0.0. + +See: https://github.com/raspberrypi/linux/issues/1151 +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 21 +++++++-- + arch/arm/boot/dts/overlays/at86rf233-overlay.dts | 54 ++++++++++++++++++++++++ + 3 files changed, 72 insertions(+), 4 deletions(-) + create mode 100644 arch/arm/boot/dts/overlays/at86rf233-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -13,6 +13,7 @@ ifeq ($(CONFIG_ARCH_BCM2835),y) + endif + + dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb ++dtb-$(RPI_DT_OVERLAYS) += at86rf233-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += dht11-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -69,13 +69,14 @@ DT parameters: + + Parameters always have default values, although in some cases (e.g. "w1-gpio") + it is necessary to provided multiple overlays in order to get the desired +-behaviour. See the list of overlays below for a description of the parameters and their defaults. ++behaviour. See the list of overlays below for a description of the parameters ++and their defaults. + + The Overlay and Parameter Reference + =================================== + +-N.B. When editing this file, please preserve the indentation levels to make it simple to parse +-programmatically. NO HARD TABS. ++N.B. When editing this file, please preserve the indentation levels to make it ++simple to parse programmatically. NO HARD TABS. + + + Name: <The base DTB> +@@ -149,7 +150,7 @@ Name: ads7846 + Info: ADS7846 Touch controller + Load: dtoverlay=ads7846,<param>=<val> + Params: cs SPI bus Chip Select (default 1) +- speed SPI bus speed (default 2Mhz, max 3.25MHz) ++ speed SPI bus speed (default 2MHz, max 3.25MHz) + penirq GPIO used for PENIRQ. REQUIRED + penirq_pull Set GPIO pull (default 0=none, 2=pullup) + swapxy Swap x and y axis +@@ -170,6 +171,18 @@ Params: cs SPI bus + www.kernel.org/doc/Documentation/devicetree/bindings/input/ads7846.txt + + ++Name: at86rf233 ++Info: Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver, ++ connected to spi0.0 ++Load: dtoverlay=at86rf233,<param>=<val> ++Params: interrupt GPIO used for INT (default 23) ++ reset GPIO used for Reset (default 24) ++ sleep GPIO used for Sleep (default 25) ++ speed SPI bus speed in Hz (default 750000) ++ trim Fine tuning of the internal capacitance ++ arrays (0=+0pF, 15=+4.5pF, default 15) ++ ++ + Name: bmp085_i2c-sensor + Info: Configures the BMP085/BMP180 digital barometric pressure and temperature + sensors from Bosch Sensortec +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/at86rf233-overlay.dts +@@ -0,0 +1,54 @@ ++/dts-v1/; ++/plugin/; ++ ++/* Overlay for Atmel AT86RF233 IEEE 802.15.4 WPAN transceiver on spi0.0 */ ++ ++/ { ++ compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; ++ ++ fragment@0 { ++ target = <&spi0>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ status = "okay"; ++ ++ spidev@0{ ++ status = "disabled"; ++ }; ++ ++ lowpan0: at86rf233@0 { ++ compatible = "atmel,at86rf233"; ++ reg = <0>; ++ interrupt-parent = <&gpio>; ++ interrupts = <23 4>; /* active high */ ++ reset-gpio = <&gpio 24 1>; ++ sleep-gpio = <&gpio 25 1>; ++ spi-max-frequency = <7500000>; ++ xtal-trim = /bits/ 8 <0xf>; ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&gpio>; ++ __overlay__ { ++ lowpan0_pins: lowpan0_pins { ++ brcm,pins = <23 24 25>; ++ brcm,function = <0 1 1>; /* in out out */ ++ }; ++ }; ++ }; ++ ++ __overrides__ { ++ interrupt = <&lowpan0>, "interrupts:0", ++ <&lowpan0_pins>, "brcm,pins:0"; ++ reset = <&lowpan0>, "reset-gpio:4", ++ <&lowpan0_pins>, "brcm,pins:4"; ++ sleep = <&lowpan0>, "sleep-gpio:4", ++ <&lowpan0_pins>, "brcm,pins:8"; ++ speed = <&lowpan0>, "spi-max-frequency:0"; ++ trim = <&lowpan0>, "xtal-trim.0"; ++ }; ++}; |