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From 1051b5df8570b9b4585fa549628f3fdd4269c171 Mon Sep 17 00:00:00 2001
From: Michael Heimpold <michael.heimpold@i2se.com>
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 <stefan.wahren@i2se.com>
Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
---
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,<param>=<val>
+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
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