Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
[sfrench/cifs-2.6.git] / arch / arm / boot / dts / bcm2837-rpi-3-b.dts
1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2837.dtsi"
4 #include "bcm2836-rpi.dtsi"
5 #include "bcm283x-rpi-smsc9514.dtsi"
6 #include "bcm283x-rpi-usb-host.dtsi"
7
8 / {
9         compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
10         model = "Raspberry Pi 3 Model B";
11
12         chosen {
13                 /* 8250 auxiliary UART instead of pl011 */
14                 stdout-path = "serial1:115200n8";
15         };
16
17         memory@0 {
18                 reg = <0 0x40000000>;
19         };
20
21         leds {
22                 act {
23                         gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
24                 };
25         };
26
27         wifi_pwrseq: wifi-pwrseq {
28                 compatible = "mmc-pwrseq-simple";
29                 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
30         };
31 };
32
33 &firmware {
34         expgpio: gpio {
35                 compatible = "raspberrypi,firmware-gpio";
36                 gpio-controller;
37                 #gpio-cells = <2>;
38                 gpio-line-names = "BT_ON",
39                                   "WL_ON",
40                                   "STATUS_LED",
41                                   "LAN_RUN",
42                                   "HDMI_HPD_N",
43                                   "CAM_GPIO0",
44                                   "CAM_GPIO1",
45                                   "PWR_LOW_N";
46                 status = "okay";
47         };
48 };
49
50 &gpio {
51         /*
52          * Taken from rpi_SCH_3b_1p2_reduced.pdf and
53          * the official GPU firmware DT blob.
54          *
55          * Legend:
56          * "NC" = not connected (no rail from the SoC)
57          * "FOO" = GPIO line named "FOO" on the schematic
58          * "FOO_N" = GPIO line named "FOO" on schematic, active low
59          */
60         gpio-line-names = "ID_SDA",
61                           "ID_SCL",
62                           "SDA1",
63                           "SCL1",
64                           "GPIO_GCLK",
65                           "GPIO5",
66                           "GPIO6",
67                           "SPI_CE1_N",
68                           "SPI_CE0_N",
69                           "SPI_MISO",
70                           "SPI_MOSI",
71                           "SPI_SCLK",
72                           "GPIO12",
73                           "GPIO13",
74                           /* Serial port */
75                           "TXD1",
76                           "RXD1",
77                           "GPIO16",
78                           "GPIO17",
79                           "GPIO18",
80                           "GPIO19",
81                           "GPIO20",
82                           "GPIO21",
83                           "GPIO22",
84                           "GPIO23",
85                           "GPIO24",
86                           "GPIO25",
87                           "GPIO26",
88                           "GPIO27",
89                           "", /* GPIO 28 */
90                           "LAN_RUN_BOOT",
91                           /* Used by BT module */
92                           "CTS0",
93                           "RTS0",
94                           "TXD0",
95                           "RXD0",
96                           /* Used by Wifi */
97                           "SD1_CLK",
98                           "SD1_CMD",
99                           "SD1_DATA0",
100                           "SD1_DATA1",
101                           "SD1_DATA2",
102                           "SD1_DATA3",
103                           "PWM0_OUT",
104                           "PWM1_OUT",
105                           "ETHCLK",
106                           "WIFI_CLK",
107                           "SDA0",
108                           "SCL0",
109                           "SMPS_SCL",
110                           "SMPS_SDA",
111                           /* Used by SD Card */
112                           "SD_CLK_R",
113                           "SD_CMD_R",
114                           "SD_DATA0_R",
115                           "SD_DATA1_R",
116                           "SD_DATA2_R",
117                           "SD_DATA3_R";
118 };
119
120 &pwm {
121         pinctrl-names = "default";
122         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
123         status = "okay";
124 };
125
126 &hdmi {
127         hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
128 };
129
130 /* uart0 communicates with the BT module */
131 &uart0 {
132         pinctrl-names = "default";
133         pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
134         status = "okay";
135
136         bluetooth {
137                 compatible = "brcm,bcm43438-bt";
138                 max-speed = <2000000>;
139                 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
140         };
141 };
142
143 /* uart1 is mapped to the pin header */
144 &uart1 {
145         pinctrl-names = "default";
146         pinctrl-0 = <&uart1_gpio14>;
147         status = "okay";
148 };
149
150 /* SDHCI is used to control the SDIO for wireless */
151 &sdhci {
152         #address-cells = <1>;
153         #size-cells = <0>;
154         pinctrl-names = "default";
155         pinctrl-0 = <&emmc_gpio34>;
156         status = "okay";
157         bus-width = <4>;
158         non-removable;
159         mmc-pwrseq = <&wifi_pwrseq>;
160
161         brcmf: wifi@1 {
162                 reg = <1>;
163                 compatible = "brcm,bcm4329-fmac";
164         };
165 };
166
167 /* SDHOST is used to drive the SD card */
168 &sdhost {
169         pinctrl-names = "default";
170         pinctrl-0 = <&sdhost_gpio48>;
171         status = "okay";
172         bus-width = <4>;
173 };