1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2/*
3 * Device Tree Source for the RZ/G2LC SMARC EVK parts
4 *
5 * Copyright (C) 2022 Renesas Electronics Corp.
6 */
7
8#include <dt-bindings/gpio/gpio.h>
9#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
10
11/*
12 * DIP-Switch SW1 setting on SoM
13 * 1 : High; 0: Low
14 * SW1-2 : SW_SD0_DEV_SEL	(1: eMMC; 0: uSD)
15 * SW1-3 : SW_SCIF_CAN		(1: CAN1; 0: SCIF1)
16 * SW1-4 : SW_RSPI_CAN		(1: CAN1; 0: RSPI1)
17 * SW1-5 : SW_I2S0_I2S1		(1: I2S2 (HDMI audio); 0: I2S0)
18 * Please change below macros according to SW1 setting
19 */
20
21#define SW_SD0_DEV_SEL	1
22
23#define SW_SCIF_CAN	0
24#if (SW_SCIF_CAN)
25/* Due to HW routing, SW_RSPI_CAN is always 0 when SW_SCIF_CAN is set to 1 */
26#define SW_RSPI_CAN	0
27#else
28/* Please set SW_RSPI_CAN. Default value is 1 */
29#define SW_RSPI_CAN	1
30#endif
31
32#if (SW_SCIF_CAN && SW_RSPI_CAN)
33#error "Can not set 1 to both SW_SCIF_CAN and SW_RSPI_CAN due to HW routing"
34#endif
35
36#include "rzg2lc-smarc-som.dtsi"
37#include "rzg2lc-smarc-pinfunction.dtsi"
38#include "rz-smarc-common.dtsi"
39
40/* comment the #define statement to disable SCIF1 (SER0) on PMOD1 (CN7) */
41#define PMOD1_SER0	1
42
43/ {
44	aliases {
45		serial1 = &scif1;
46		i2c2 = &i2c2;
47	};
48};
49
50#if (SW_SCIF_CAN || SW_RSPI_CAN)
51&canfd {
52	pinctrl-0 = <&can1_pins>;
53	/delete-node/ channel@0;
54};
55#else
56&canfd {
57	/delete-property/ pinctrl-0;
58	/delete-property/ pinctrl-names;
59	status = "disabled";
60};
61#endif
62
63&cpu_dai {
64	sound-dai = <&ssi0>;
65};
66
67&i2c2 {
68	pinctrl-0 = <&i2c2_pins>;
69	pinctrl-names = "default";
70	clock-frequency = <400000>;
71
72	status = "okay";
73
74	wm8978: codec@1a {
75		compatible = "wlf,wm8978";
76		#sound-dai-cells = <0>;
77		reg = <0x1a>;
78	};
79};
80
81/*
82 * To enable SCIF1 (SER0) on PMOD1 (CN7), On connector board
83 * SW1 should be at position 2->3 so that SER0_CTS# line is activated
84 * SW2 should be at position 2->3 so that SER0_TX line is activated
85 * SW3 should be at position 2->3 so that SER0_RX line is activated
86 * SW4 should be at position 2->3 so that SER0_RTS# line is activated
87 */
88#if (!SW_SCIF_CAN && PMOD1_SER0)
89&scif1 {
90	pinctrl-0 = <&scif1_pins>;
91	pinctrl-names = "default";
92
93	uart-has-rtscts;
94	status = "okay";
95};
96#endif
97
98&ssi0 {
99	pinctrl-0 = <&ssi0_pins>;
100	pinctrl-names = "default";
101
102	status = "okay";
103};
104
105#if (SW_RSPI_CAN)
106&spi1 {
107	/delete-property/ pinctrl-0;
108	/delete-property/ pinctrl-names;
109	status = "disabled";
110};
111#endif
112
113&vccq_sdhi1 {
114	gpios = <&pinctrl RZG2L_GPIO(39, 1) GPIO_ACTIVE_HIGH>;
115};
116