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1 | /* |
2 | * Copyright (C) 2011-2012 | |
3 | * Lauri Hintsala, Bluegiga, <lauri.hintsala@bluegiga.com> | |
4 | * Veli-Pekka Peltola, Bluegiga, <veli-pekka.peltola@bluegiga.com> | |
5 | * | |
6 | * based on: mach-mx28evk.c | |
7 | * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | */ | |
19 | ||
20 | #include <linux/delay.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/gpio.h> | |
23 | #include <linux/leds.h> | |
24 | #include <linux/clk.h> | |
25 | #include <linux/i2c.h> | |
26 | #include <linux/regulator/machine.h> | |
27 | #include <linux/regulator/fixed.h> | |
28 | #include <linux/micrel_phy.h> | |
29 | ||
30 | #include <asm/mach-types.h> | |
31 | #include <asm/mach/arch.h> | |
32 | #include <asm/mach/time.h> | |
33 | ||
34 | #include <mach/common.h> | |
35 | #include <mach/digctl.h> | |
36 | #include <mach/iomux-mx28.h> | |
37 | ||
38 | #include "devices-mx28.h" | |
39 | ||
40 | #define APX4DEVKIT_GPIO_USERLED MXS_GPIO_NR(3, 28) | |
41 | ||
42 | static const iomux_cfg_t apx4devkit_pads[] __initconst = { | |
43 | /* duart */ | |
44 | MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL, | |
45 | MX28_PAD_PWM1__DUART_TX | MXS_PAD_CTRL, | |
46 | ||
47 | /* auart0 */ | |
48 | MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL, | |
49 | MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL, | |
50 | MX28_PAD_AUART0_CTS__AUART0_CTS | MXS_PAD_CTRL, | |
51 | MX28_PAD_AUART0_RTS__AUART0_RTS | MXS_PAD_CTRL, | |
52 | ||
53 | /* auart1 */ | |
54 | MX28_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL, | |
55 | MX28_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL, | |
56 | ||
57 | /* auart2 */ | |
58 | MX28_PAD_SSP2_SCK__AUART2_RX | MXS_PAD_CTRL, | |
59 | MX28_PAD_SSP2_MOSI__AUART2_TX | MXS_PAD_CTRL, | |
60 | ||
61 | /* auart3 */ | |
62 | MX28_PAD_SSP2_MISO__AUART3_RX | MXS_PAD_CTRL, | |
63 | MX28_PAD_SSP2_SS0__AUART3_TX | MXS_PAD_CTRL, | |
64 | ||
65 | #define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP) | |
66 | /* fec0 */ | |
67 | MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC, | |
68 | MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC, | |
69 | MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC, | |
70 | MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC, | |
71 | MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC, | |
72 | MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC, | |
73 | MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC, | |
74 | MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC, | |
75 | MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC, | |
76 | ||
77 | /* i2c */ | |
78 | MX28_PAD_I2C0_SCL__I2C0_SCL, | |
79 | MX28_PAD_I2C0_SDA__I2C0_SDA, | |
80 | ||
81 | /* mmc0 */ | |
82 | MX28_PAD_SSP0_DATA0__SSP0_D0 | | |
83 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
84 | MX28_PAD_SSP0_DATA1__SSP0_D1 | | |
85 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
86 | MX28_PAD_SSP0_DATA2__SSP0_D2 | | |
87 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
88 | MX28_PAD_SSP0_DATA3__SSP0_D3 | | |
89 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
90 | MX28_PAD_SSP0_DATA4__SSP0_D4 | | |
91 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
92 | MX28_PAD_SSP0_DATA5__SSP0_D5 | | |
93 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
94 | MX28_PAD_SSP0_DATA6__SSP0_D6 | | |
95 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
96 | MX28_PAD_SSP0_DATA7__SSP0_D7 | | |
97 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
98 | MX28_PAD_SSP0_CMD__SSP0_CMD | | |
99 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
100 | MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT | | |
101 | (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), | |
102 | MX28_PAD_SSP0_SCK__SSP0_SCK | | |
103 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), | |
104 | ||
105 | /* led */ | |
106 | MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL, | |
107 | ||
108 | /* saif0 & saif1 */ | |
109 | MX28_PAD_SAIF0_MCLK__SAIF0_MCLK | | |
110 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
111 | MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK | | |
112 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
113 | MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK | | |
114 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
115 | MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 | | |
116 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
117 | MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 | | |
118 | (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), | |
119 | }; | |
120 | ||
121 | /* led */ | |
122 | static const struct gpio_led apx4devkit_leds[] __initconst = { | |
123 | { | |
124 | .name = "user-led", | |
125 | .default_trigger = "heartbeat", | |
126 | .gpio = APX4DEVKIT_GPIO_USERLED, | |
127 | }, | |
128 | }; | |
129 | ||
130 | static const struct gpio_led_platform_data apx4devkit_led_data __initconst = { | |
131 | .leds = apx4devkit_leds, | |
132 | .num_leds = ARRAY_SIZE(apx4devkit_leds), | |
133 | }; | |
134 | ||
135 | static const struct fec_platform_data mx28_fec_pdata __initconst = { | |
136 | .phy = PHY_INTERFACE_MODE_RMII, | |
137 | }; | |
138 | ||
139 | static const struct mxs_mmc_platform_data apx4devkit_mmc_pdata __initconst = { | |
140 | .wp_gpio = -EINVAL, | |
141 | .flags = SLOTF_4_BIT_CAPABLE, | |
142 | }; | |
143 | ||
144 | static const struct i2c_board_info apx4devkit_i2c_boardinfo[] __initconst = { | |
145 | { I2C_BOARD_INFO("sgtl5000", 0x0a) }, /* ASoC */ | |
146 | { I2C_BOARD_INFO("pcf8563", 0x51) }, /* RTC */ | |
147 | }; | |
148 | ||
149 | #if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || \ | |
150 | defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE) | |
151 | static struct regulator_consumer_supply apx4devkit_audio_consumer_supplies[] = { | |
152 | REGULATOR_SUPPLY("VDDA", "0-000a"), | |
153 | REGULATOR_SUPPLY("VDDIO", "0-000a"), | |
154 | }; | |
155 | ||
156 | static struct regulator_init_data apx4devkit_vdd_reg_init_data = { | |
157 | .constraints = { | |
158 | .name = "3V3", | |
159 | .always_on = 1, | |
160 | }, | |
161 | .consumer_supplies = apx4devkit_audio_consumer_supplies, | |
162 | .num_consumer_supplies = ARRAY_SIZE(apx4devkit_audio_consumer_supplies), | |
163 | }; | |
164 | ||
165 | static struct fixed_voltage_config apx4devkit_vdd_pdata = { | |
166 | .supply_name = "board-3V3", | |
167 | .microvolts = 3300000, | |
168 | .gpio = -EINVAL, | |
169 | .enabled_at_boot = 1, | |
170 | .init_data = &apx4devkit_vdd_reg_init_data, | |
171 | }; | |
172 | ||
173 | static struct platform_device apx4devkit_voltage_regulator = { | |
174 | .name = "reg-fixed-voltage", | |
175 | .id = -1, | |
176 | .num_resources = 0, | |
177 | .dev = { | |
178 | .platform_data = &apx4devkit_vdd_pdata, | |
179 | }, | |
180 | }; | |
181 | ||
182 | static void __init apx4devkit_add_regulators(void) | |
183 | { | |
184 | platform_device_register(&apx4devkit_voltage_regulator); | |
185 | } | |
186 | #else | |
187 | static void __init apx4devkit_add_regulators(void) {} | |
188 | #endif | |
189 | ||
190 | static const struct mxs_saif_platform_data | |
191 | apx4devkit_mxs_saif_pdata[] __initconst = { | |
192 | /* working on EXTMSTR0 mode (saif0 master, saif1 slave) */ | |
193 | { | |
194 | .master_mode = 1, | |
195 | .master_id = 0, | |
196 | }, { | |
197 | .master_mode = 0, | |
198 | .master_id = 0, | |
199 | }, | |
200 | }; | |
201 | ||
202 | static int apx4devkit_phy_fixup(struct phy_device *phy) | |
203 | { | |
204 | phy->dev_flags |= MICREL_PHY_50MHZ_CLK; | |
205 | return 0; | |
206 | } | |
207 | ||
c46d2916 LH |
208 | static void __init apx4devkit_fec_phy_clk_enable(void) |
209 | { | |
210 | struct clk *clk; | |
211 | ||
212 | /* Enable fec phy clock */ | |
213 | clk = clk_get_sys("enet_out", NULL); | |
214 | if (!IS_ERR(clk)) | |
215 | clk_prepare_enable(clk); | |
216 | } | |
217 | ||
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218 | static void __init apx4devkit_init(void) |
219 | { | |
d1654b80 SG |
220 | mx28_soc_init(); |
221 | ||
79ce72aa LH |
222 | mxs_iomux_setup_multiple_pads(apx4devkit_pads, |
223 | ARRAY_SIZE(apx4devkit_pads)); | |
224 | ||
225 | mx28_add_duart(); | |
226 | mx28_add_auart0(); | |
227 | mx28_add_auart1(); | |
228 | mx28_add_auart2(); | |
229 | mx28_add_auart3(); | |
230 | ||
231 | /* | |
232 | * Register fixup for the Micrel KS8031 PHY clock | |
233 | * (shares same ID with KS8051) | |
234 | */ | |
235 | phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK, | |
236 | apx4devkit_phy_fixup); | |
237 | ||
c46d2916 | 238 | apx4devkit_fec_phy_clk_enable(); |
79ce72aa LH |
239 | mx28_add_fec(0, &mx28_fec_pdata); |
240 | ||
241 | mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata); | |
242 | ||
243 | gpio_led_register_device(0, &apx4devkit_led_data); | |
244 | ||
245 | mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0); | |
246 | mx28_add_saif(0, &apx4devkit_mxs_saif_pdata[0]); | |
247 | mx28_add_saif(1, &apx4devkit_mxs_saif_pdata[1]); | |
248 | ||
249 | apx4devkit_add_regulators(); | |
250 | ||
251 | mx28_add_mxs_i2c(0); | |
252 | i2c_register_board_info(0, apx4devkit_i2c_boardinfo, | |
253 | ARRAY_SIZE(apx4devkit_i2c_boardinfo)); | |
254 | ||
255 | mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0, NULL, 0); | |
256 | } | |
257 | ||
258 | static void __init apx4devkit_timer_init(void) | |
259 | { | |
260 | mx28_clocks_init(); | |
261 | } | |
262 | ||
263 | static struct sys_timer apx4devkit_timer = { | |
264 | .init = apx4devkit_timer_init, | |
265 | }; | |
266 | ||
267 | MACHINE_START(APX4DEVKIT, "Bluegiga APX4 Development Kit") | |
268 | .map_io = mx28_map_io, | |
269 | .init_irq = mx28_init_irq, | |
270 | .timer = &apx4devkit_timer, | |
271 | .init_machine = apx4devkit_init, | |
272 | .restart = mxs_restart, | |
273 | MACHINE_END |