1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Device Tree Source for the iWave RZ/G1H Qseven SOM
4 *
5 * Copyright (C) 2020 Renesas Electronics Corp.
6 */
7
8 #include "r8a7742.dtsi"
9 #include <dt-bindings/gpio/gpio.h>
10
11 / {
12 compatible = "iwave,g21m", "renesas,r8a7742";
13
14 memory@40000000 {
15 device_type = "memory";
16 reg = <0 0x40000000 0 0x40000000>;
17 };
18
19 memory@200000000 {
20 device_type = "memory";
21 reg = <2 0x00000000 0 0x40000000>;
22 };
23
24 reg_3p3v: 3p3v {
25 compatible = "regulator-fixed";
26 regulator-name = "3P3V";
27 regulator-min-microvolt = <3300000>;
28 regulator-max-microvolt = <3300000>;
29 regulator-always-on;
30 regulator-boot-on;
31 };
32 };
33
34 &extal_clk {
35 clock-frequency = <20000000>;
36 };
37
38 &gpio0 {
39 /* GP0_18 set low to select QSPI. Doing so will disable VIN2 */
40 qspi-en-hog {
41 gpio-hog;
42 gpios = <18 GPIO_ACTIVE_HIGH>;
43 output-low;
44 line-name = "QSPI_EN";
45 };
46 };
47
48 &i2c0 {
49 pinctrl-0 = <&i2c0_pins>;
50 pinctrl-names = "default";
51
52 status = "okay";
53 clock-frequency = <400000>;
54
55 rtc@68 {
56 compatible = "ti,bq32000";
57 reg = <0x68>;
58 interrupt-parent = <&gpio1>;
59 interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
60 };
61 };
62
63 &mmcif1 {
64 pinctrl-0 = <&mmc1_pins>;
65 pinctrl-names = "default";
66
67 vmmc-supply = <®_3p3v>;
68 bus-width = <4>;
69 non-removable;
70 status = "okay";
71 };
72
73 &pfc {
74 i2c0_pins: i2c0 {
75 groups = "i2c0";
76 function = "i2c0";
77 };
78
79 mmc1_pins: mmc1 {
80 groups = "mmc1_data4", "mmc1_ctrl";
81 function = "mmc1";
82 };
83
84 qspi_pins: qspi {
85 groups = "qspi_ctrl", "qspi_data2";
86 function = "qspi";
87 };
88 };
89
90 &qspi {
91 pinctrl-0 = <&qspi_pins>;
92 pinctrl-names = "default";
93
94 status = "okay";
95
96 flash: flash@0 {
97 compatible = "sst,sst25vf016b", "jedec,spi-nor";
98 reg = <0>;
99 spi-max-frequency = <50000000>;
100 m25p,fast-read;
101 spi-cpol;
102 spi-cpha;
103
104 partitions {
105 compatible = "fixed-partitions";
106 #address-cells = <1>;
107 #size-cells = <1>;
108
109 partition@0 {
110 label = "bootloader";
111 reg = <0x00000000 0x000c0000>;
112 read-only;
113 };
114 partition@c0000 {
115 label = "env";
116 reg = <0x000c0000 0x00002000>;
117 };
118 partition@c2000 {
119 label = "user";
120 reg = <0x000c2000 0x0013e000>;
121 };
122 };
123 };
124 };
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