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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
From a189771546b304250cf18b26748edfefb857adbf Mon Sep 17 00:00:00 2001
From: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Date: Fri, 14 Oct 2016 11:25:55 +0530
Subject: MIPS: DTS: img: add device tree for Marduk board
Add support for Imagination Technologies' Marduk board which is based
on Pistachio SoC. It is also known as Creator Ci40. Marduk is legacy
name and will be there for decades.
Documentation for this board can be found on
https://docs.creatordev.io/ci40/
This patch adds initial support for board with following peripherals:
* PWM based heartbeat LED
* GPIO based buttons
* SPI NOR flash on SPI1
* UART0 and UART1
* SD card
* Ethernet
* USB
* PWM
* ADC
* I2C
(apply from https://patchwork.linux-mips.org/project/linux-mips/list/?submitter=7165)
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: James Hartley <james.hartley@imgtec.com>
---
.../bindings/mips/img/pistachio-marduk.txt | 10 ++
arch/mips/boot/dts/img/Makefile | 9 ++
arch/mips/boot/dts/img/pistachio_marduk.dts | 163 +++++++++++++++++++++
3 files changed, 182 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
create mode 100644 arch/mips/boot/dts/img/Makefile
create mode 100644 arch/mips/boot/dts/img/pistachio_marduk.dts
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
@@ -0,0 +1,10 @@
+Imagination Technologies' Pistachio SoC based Marduk Board
+==========================================================
+
+Compatible string must be "img,pistachio-marduk", "img,pistachio"
+
+Hardware and other related documentation is available at
+https://docs.creatordev.io/ci40/
+
+It is also known as Creator Ci40. Marduk is legacy name and will
+be there for decades.
--- /dev/null
+++ b/arch/mips/boot/dts/img/Makefile
@@ -0,0 +1,9 @@
+dtb-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb
+
+obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+
+# Force kbuild to make empty built-in.o if necessary
+obj- += dummy.o
+
+always := $(dtb-y)
+clean-files := *.dtb *.dtb.S
--- /dev/null
+++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2015, 2016 Imagination Technologies Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * IMG Marduk board is also known as Creator Ci40.
+ */
+
+/dts-v1/;
+
+#include "pistachio.dtsi"
+
+/ {
+ model = "IMG Marduk (Creator Ci40)";
+ compatible = "img,pistachio-marduk", "img,pistachio";
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ ethernet0 = &enet;
+ spi0 = &spfi0;
+ spi1 = &spfi1;
+ };
+
+ chosen {
+ bootargs = "root=/dev/sda1 rootwait ro lpj=723968";
+ stdout-path = "serial1:115200";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>;
+ };
+
+ reg_1v8: fixed-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "aux_adc_vref";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ };
+
+ internal_dac_supply: internal-dac-supply {
+ compatible = "regulator-fixed";
+ regulator-name = "internal_dac_supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ leds {
+ compatible = "pwm-leds";
+ heartbeat {
+ label = "marduk:red:heartbeat";
+ pwms = <&pwm 3 300000>;
+ max-brightness = <255>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ keys {
+ compatible = "gpio-keys";
+ button@1 {
+ label = "Button 1";
+ linux,code = <0x101>; /* BTN_1 */
+ gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
+ };
+ button@2 {
+ label = "Button 2";
+ linux,code = <0x102>; /* BTN_2 */
+ gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&internal_dac {
+ VDD-supply = <&internal_dac_supply>;
+};
+
+&spfi1 {
+ status = "okay";
+
+ pinctrl-0 = <&spim1_pins>, <&spim1_quad_pins>, <&spim1_cs0_pin>,
+ <&spim1_cs1_pin>;
+ pinctrl-names = "default";
+ cs-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>, <&gpio0 1 GPIO_ACTIVE_HIGH>;
+
+ flash@0 {
+ compatible = "spansion,s25fl016k", "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+ assigned-clock-rates = <114278400>, <1843200>;
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&usb {
+ status = "okay";
+};
+
+&enet {
+ status = "okay";
+};
+
+&pin_enet {
+ drive-strength = <2>;
+};
+
+&pin_enet_phy_clk {
+ drive-strength = <2>;
+};
+
+&sdhost {
+ status = "okay";
+ bus-width = <4>;
+ disable-wp;
+};
+
+&pin_sdhost_cmd {
+ drive-strength = <2>;
+};
+
+&pin_sdhost_data {
+ drive-strength = <2>;
+};
+
+&pwm {
+ status = "okay";
+
+ pinctrl-0 = <&pwmpdm0_pin>, <&pwmpdm1_pin>, <&pwmpdm2_pin>,
+ <&pwmpdm3_pin>;
+ pinctrl-names = "default";
+};
+
+&adc {
+ status = "okay";
+ vref-supply = <®_1v8>;
+ adc-reserved-channels = <0x10>;
+};
+
+&i2c2 {
+ status = "okay";
+ clock-frequency = <400000>;
+
+ tpm@20 {
+ compatible = "infineon,slb9645tt";
+ reg = <0x20>;
+ };
+
+};
+
+&i2c3 {
+ status = "okay";
+ clock-frequency = <400000>;
+};
|
