From 1051b5df8570b9b4585fa549628f3fdd4269c171 Mon Sep 17 00:00:00 2001 From: Michael Heimpold Date: Fri, 29 Jan 2016 12:00:37 +0100 Subject: [PATCH] Add overlay and enable support for QCA7000 board This adds a device tree overlay for the QCA7000 which can be used when attaching an I2SE's PLC Stamp micro EVK to the Raspberry Pi. This Evaluation Board embeds a QCA7000 chip, a Homeplug Green PHY powerline chip from Qualcomm/Atheros for the Internet of Things. This patch also enables the required QCA7000 driver module in the default configurations. Signed-off-by: Stefan Wahren Signed-off-by: Michael Heimpold --- arch/arm/boot/dts/overlays/Makefile | 1 + arch/arm/boot/dts/overlays/README | 8 ++++ arch/arm/boot/dts/overlays/qca7000-overlay.dts | 52 ++++++++++++++++++++++++++ arch/arm/configs/bcm2709_defconfig | 1 + arch/arm/configs/bcmrpi_defconfig | 1 + 5 files changed, 63 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/qca7000-overlay.dts --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -48,6 +48,7 @@ dtbo-$(RPI_DT_OVERLAYS) += pitft28-resis dtbo-$(RPI_DT_OVERLAYS) += pps-gpio.dtbo dtbo-$(RPI_DT_OVERLAYS) += pwm.dtbo dtbo-$(RPI_DT_OVERLAYS) += pwm-2chan.dtbo +dtbo-$(RPI_DT_OVERLAYS) += qca7000.dtbo dtbo-$(RPI_DT_OVERLAYS) += raspidac3.dtbo dtbo-$(RPI_DT_OVERLAYS) += rpi-backlight.dtbo dtbo-$(RPI_DT_OVERLAYS) += rpi-dac.dtbo --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -625,6 +625,14 @@ Params: pin Output p clock PWM clock frequency (informational) +Name: qca7000 +Info: I2SE's Evaluation Board for PLC Stamp micro +Load: dtoverlay=qca7000,= +Params: int_pin GPIO pin for interrupt signal (default 23) + + speed SPI bus speed (default 12 MHz) + + Name: raspidac3 Info: Configures the RaspiDAV Rev.3x audio card Load: dtoverlay=raspidac3 --- /dev/null +++ b/arch/arm/boot/dts/overlays/qca7000-overlay.dts @@ -0,0 +1,52 @@ +// Overlay for the Qualcomm Atheros QCA7000 on I2SE's PLC Stamp micro EVK +// Visit: https://www.i2se.com/product/plc-stamp-micro-evk for details + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2708"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + status = "okay"; + + spidev@0 { + status = "disabled"; + }; + + eth1: qca7000@0 { + compatible = "qca,qca7000"; + reg = <0>; /* CE0 */ + pinctrl-names = "default"; + pinctrl-0 = <ð1_pins>; + interrupt-parent = <&gpio>; + interrupts = <23 0x1>; /* rising edge */ + spi-max-frequency = <12000000>; + status = "okay"; + }; + }; + }; + + fragment@1 { + target = <&gpio>; + __overlay__ { + eth1_pins: eth1_pins { + brcm,pins = <23>; + 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"; + }; +}; --- a/arch/arm/configs/bcm2709_defconfig +++ b/arch/arm/configs/bcm2709_defconfig @@ -446,6 +446,7 @@ CONFIG_NETCONSOLE=m CONFIG_TUN=m CONFIG_VETH=m CONFIG_ENC28J60=m +CONFIG_QCA7000=m CONFIG_MDIO_BITBANG=m CONFIG_PPP=m CONFIG_PPP_BSDCOMP=m --- a/arch/arm/configs/bcmrpi_defconfig +++ b/arch/arm/configs/bcmrpi_defconfig @@ -439,6 +439,7 @@ CONFIG_NETCONSOLE=m CONFIG_TUN=m CONFIG_VETH=m CONFIG_ENC28J60=m +CONFIG_QCA7000=m CONFIG_MDIO_BITBANG=m CONFIG_PPP=m CONFIG_PPP_BSDCOMP=m