diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0556-BCM270X_DT-Add-overlay-for-enc28j60-on-SPI2.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0556-BCM270X_DT-Add-overlay-for-enc28j60-on-SPI2.patch | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0556-BCM270X_DT-Add-overlay-for-enc28j60-on-SPI2.patch b/target/linux/brcm2708/patches-4.4/0556-BCM270X_DT-Add-overlay-for-enc28j60-on-SPI2.patch new file mode 100644 index 0000000..8aea6e4 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0556-BCM270X_DT-Add-overlay-for-enc28j60-on-SPI2.patch @@ -0,0 +1,108 @@ +From ea006f68522d82b294094fd29585b16290758d29 Mon Sep 17 00:00:00 2001 +From: Alan Yiding Wang <y2366wan@uwaterloo.ca> +Date: Sat, 3 Dec 2016 23:22:02 -0500 +Subject: [PATCH] BCM270X_DT: Add overlay for enc28j60 on SPI2 + +Works on SPI2 for compute module +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 10 ++++- + .../boot/dts/overlays/enc28j60-spi2-overlay.dts | 47 ++++++++++++++++++++++ + 3 files changed, 57 insertions(+), 1 deletion(-) + create mode 100644 arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts + +diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile +index 57d60a4..c4186aa 100644 +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -28,6 +28,7 @@ dtbo-$(RPI_DT_OVERLAYS) += dpi24.dtbo + dtbo-$(RPI_DT_OVERLAYS) += dwc-otg.dtbo + dtbo-$(RPI_DT_OVERLAYS) += dwc2.dtbo + dtbo-$(RPI_DT_OVERLAYS) += enc28j60.dtbo ++dtbo-$(RPI_DT_OVERLAYS) += enc28j60-spi2.dtbo + dtbo-$(RPI_DT_OVERLAYS) += gpio-ir.dtbo + dtbo-$(RPI_DT_OVERLAYS) += gpio-poweroff.dtbo + dtbo-$(RPI_DT_OVERLAYS) += hifiberry-amp.dtbo +diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README +index 35c0cec1..4a77ee6 100644 +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -344,13 +344,21 @@ Params: dr_mode Dual role mode: "host", "peripheral" or "otg" + + + Name: enc28j60 +-Info: Overlay for the Microchip ENC28J60 Ethernet Controller (SPI) ++Info: Overlay for the Microchip ENC28J60 Ethernet Controller on SPI0 + Load: dtoverlay=enc28j60,<param>=<val> + Params: int_pin GPIO used for INT (default 25) + + speed SPI bus speed (default 12000000) + + ++Name: enc28j60-spi2 ++Info: Overlay for the Microchip ENC28J60 Ethernet Controller on SPI2 ++Load: dtoverlay=enc28j60-spi2,<param>=<val> ++Params: int_pin GPIO used for INT (default 39) ++ ++ speed SPI bus speed (default 12000000) ++ ++ + Name: gpio-ir + Info: Use GPIO pin as rc-core style infrared receiver input. The rc-core- + based gpio_ir_recv driver maps received keys directly to a +diff --git a/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts b/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts +new file mode 100644 +index 0000000..946c9d2 +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts +@@ -0,0 +1,47 @@ ++// Overlay for the Microchip ENC28J60 Ethernet Controller - SPI2 Compute Module ++// Interrupt pin: 39 ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2708"; ++ ++ fragment@0 { ++ target = <&spi2>; ++ __overlay__ { ++ /* needed to avoid dtc warning */ ++ #address-cells = <1>; ++ #size-cells = <0>; ++ ++ status = "okay"; ++ ++ eth1: enc28j60@0{ ++ compatible = "microchip,enc28j60"; ++ reg = <0>; /* CE0 */ ++ pinctrl-names = "default"; ++ pinctrl-0 = <ð1_pins>; ++ interrupt-parent = <&gpio>; ++ interrupts = <39 0x2>; /* falling edge */ ++ spi-max-frequency = <12000000>; ++ status = "okay"; ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&gpio>; ++ __overlay__ { ++ eth1_pins: eth1_pins { ++ brcm,pins = <39>; ++ brcm,function = <0>; /* in */ ++ brcm,pull = <0>; /* none */ ++ }; ++ }; ++ }; ++ ++ __overrides__ { ++ int_pin = <ð1>, "interrupts:0", ++ <ð1_pins>, "brcm,pins:0"; ++ speed = <ð1>, "spi-max-frequency:0"; ++ }; ++}; +-- +2.1.4 + |