1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Device Tree Source for the iWave RZ/G1N Qseven SOM
4 *
5 * Copyright (C) 2018 Renesas Electronics Corp.
6 */
7
8 #include "r8a7744.dtsi"
9 #include <dt-bindings/gpio/gpio.h>
10
11 / {
12 compatible = "iwave,g20m", "renesas,r8a7744";
13
14 memory@40000000 {
15 device_type = "memory";
16 reg = <0 0x40000000 0 0x40000000>;
17 };
18
19 reg_3p3v: 3p3v {
20 compatible = "regulator-fixed";
21 regulator-name = "3P3V";
22 regulator-min-microvolt = <3300000>;
23 regulator-max-microvolt = <3300000>;
24 regulator-always-on;
25 regulator-boot-on;
26 };
27 };
28
29 &extal_clk {
30 clock-frequency = <20000000>;
31 };
32
33 &pfc {
34 mmcif0_pins: mmc {
35 groups = "mmc_data8_b", "mmc_ctrl";
36 function = "mmc";
37 };
38
39 qspi_pins: qspi {
40 groups = "qspi_ctrl", "qspi_data2";
41 function = "qspi";
42 };
43
44 sdhi0_pins: sd0 {
45 groups = "sdhi0_data4", "sdhi0_ctrl";
46 function = "sdhi0";
47 power-source = <3300>;
48 };
49 };
50
51 &mmcif0 {
52 pinctrl-0 = <&mmcif0_pins>;
53 pinctrl-names = "default";
54
55 vmmc-supply = <®_3p3v>;
56 bus-width = <8>;
57 non-removable;
58 status = "okay";
59 };
60
61 &qspi {
62 pinctrl-0 = <&qspi_pins>;
63 pinctrl-names = "default";
64
65 status = "okay";
66
67 /* WARNING - This device contains the bootloader. Handle with care. */
68 flash: flash@0 {
69 #address-cells = <1>;
70 #size-cells = <1>;
71 compatible = "jedec,spi-nor";
72 reg = <0>;
73 spi-max-frequency = <50000000>;
74 spi-tx-bus-width = <2>;
75 spi-rx-bus-width = <2>;
76 m25p,fast-read;
77 spi-cpol;
78 spi-cpha;
79 };
80 };
81
82 &sdhi0 {
83 pinctrl-0 = <&sdhi0_pins>;
84 pinctrl-names = "default";
85
86 vmmc-supply = <®_3p3v>;
87 vqmmc-supply = <®_3p3v>;
88 cd-gpios = <&gpio7 11 GPIO_ACTIVE_LOW>;
89 status = "okay";
90 };
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