summaryrefslogtreecommitdiff
path: root/target/linux/brcm2708/patches-4.4/0201-Add-overlay-and-enable-support-for-QCA7000-board.patch
blob: 72c393334322383f50e166ab0b4463a620a02fed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
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 = <&eth1_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 = <&eth1>, "interrupts:0",
+		          <&eth1_pins>, "brcm,pins:0";
+		speed   = <&eth1>, "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