blob: 1b43ebd08b38106a92ccc088998ef9f3cf51bab7 [file] [log] [blame]
Marcin Niestroje0673792018-11-21 20:32:00 +01001/*
2 * Copyright (C) 2015 Jablotron s.r.o. -- http://www.jablotron.com/
3 * Author: Rostislav Lisovy <lisovy@jablotron.cz>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9#include "am33xx.dtsi"
10#include <dt-bindings/interrupt-controller/irq.h>
11
12/ {
13 model = "Grinn AM335x ChiliSOM";
14 compatible = "grinn,am335x-chilisom", "ti,am33xx";
15
16 cpus {
17 cpu@0 {
18 cpu0-supply = <&dcdc2_reg>;
19 };
20 };
21
22 memory@80000000 {
23 device_type = "memory";
24 reg = <0x80000000 0x20000000>; /* 512 MB */
25 };
26};
27
28&am33xx_pinmux {
29 pinctrl-names = "default";
30
31 i2c0_pins: pinmux_i2c0_pins {
32 pinctrl-single,pins = <
33 AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */
34 AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */
35 >;
36 };
37
38 nandflash_pins: nandflash_pins {
39 pinctrl-single,pins = <
40 AM33XX_IOPAD(0x800, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad0.gpmc_ad0 */
41 AM33XX_IOPAD(0x804, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad1.gpmc_ad1 */
42 AM33XX_IOPAD(0x808, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad2.gpmc_ad2 */
43 AM33XX_IOPAD(0x80c, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad3.gpmc_ad3 */
44 AM33XX_IOPAD(0x810, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad4.gpmc_ad4 */
45 AM33XX_IOPAD(0x814, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad5.gpmc_ad5 */
46 AM33XX_IOPAD(0x818, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad6.gpmc_ad6 */
47 AM33XX_IOPAD(0x81c, PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad7.gpmc_ad7 */
48
49 AM33XX_IOPAD(0x870, PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_wait0.gpmc_wait0 */
50 AM33XX_IOPAD(0x87c, PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_csn0.gpmc_csn0 */
51 AM33XX_IOPAD(0x890, PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_advn_ale.gpmc_advn_ale */
52 AM33XX_IOPAD(0x894, PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_oen_ren.gpmc_oen_ren */
53 AM33XX_IOPAD(0x898, PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_wen.gpmc_wen */
54 AM33XX_IOPAD(0x89c, PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
55 >;
56 };
57};
58
59&i2c0 {
60 pinctrl-names = "default";
61 pinctrl-0 = <&i2c0_pins>;
62
63 status = "okay";
64 clock-frequency = <400000>;
65
66 tps: tps@24 {
67 reg = <0x24>;
68 };
69
70};
71
72/include/ "tps65217.dtsi"
73
74&tps {
75 regulators {
76 dcdc1_reg: regulator@0 {
77 regulator-name = "vdds_dpr";
78 regulator-always-on;
79 };
80
81 dcdc2_reg: regulator@1 {
82 /* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
83 regulator-name = "vdd_mpu";
84 regulator-min-microvolt = <925000>;
85 regulator-max-microvolt = <1325000>;
86 regulator-boot-on;
87 regulator-always-on;
88 };
89
90 dcdc3_reg: regulator@2 {
91 /* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
92 regulator-name = "vdd_core";
93 regulator-min-microvolt = <925000>;
94 regulator-max-microvolt = <1150000>;
95 regulator-boot-on;
96 regulator-always-on;
97 };
98
99 ldo1_reg: regulator@3 {
100 regulator-name = "vio,vrtc,vdds";
101 regulator-boot-on;
102 regulator-always-on;
103 };
104
105 ldo2_reg: regulator@4 {
106 regulator-name = "vdd_3v3aux";
107 regulator-boot-on;
108 regulator-always-on;
109 };
110
111 ldo3_reg: regulator@5 {
112 regulator-name = "vdd_1v8";
113 regulator-boot-on;
114 regulator-always-on;
115 };
116
117 ldo4_reg: regulator@6 {
118 regulator-name = "vdd_3v3d";
119 regulator-boot-on;
120 regulator-always-on;
121 };
122 };
123};
124
125&rtc {
126 system-power-controller;
127
128 pinctrl-0 = <&ext_wakeup>;
129 pinctrl-names = "default";
130
131 ext_wakeup: ext-wakeup {
132 pins = "ext_wakeup0";
133 input-enable;
134 };
135};
136
137/* NAND Flash */
138&elm {
139 status = "okay";
140};
141
142&gpmc {
143 status = "okay";
144 pinctrl-names = "default";
145 pinctrl-0 = <&nandflash_pins>;
146 ranges = <0 0 0x08000000 0x01000000>; /* CS0 0 @addr 0x08000000, size 0x01000000 */
147 nand@0,0 {
148 compatible = "ti,omap2-nand";
149 reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
150 interrupt-parent = <&gpmc>;
151 interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
152 <1 IRQ_TYPE_NONE>; /* termcount */
153 rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
154 ti,nand-ecc-opt = "bch8";
155 ti,elm-id = <&elm>;
156 nand-bus-width = <8>;
157 gpmc,device-width = <1>;
158 gpmc,sync-clk-ps = <0>;
159 gpmc,cs-on-ns = <0>;
160 gpmc,cs-rd-off-ns = <44>;
161 gpmc,cs-wr-off-ns = <44>;
162 gpmc,adv-on-ns = <6>;
163 gpmc,adv-rd-off-ns = <34>;
164 gpmc,adv-wr-off-ns = <44>;
165 gpmc,we-on-ns = <0>;
166 gpmc,we-off-ns = <40>;
167 gpmc,oe-on-ns = <0>;
168 gpmc,oe-off-ns = <54>;
169 gpmc,access-ns = <64>;
170 gpmc,rd-cycle-ns = <82>;
171 gpmc,wr-cycle-ns = <82>;
172 gpmc,bus-turnaround-ns = <0>;
173 gpmc,cycle2cycle-delay-ns = <0>;
174 gpmc,clk-activation-ns = <0>;
175 gpmc,wr-access-ns = <40>;
176 gpmc,wr-data-mux-bus-ns = <0>;
177 };
178};