2 * Copyright (C) 2011-2012
3 * Lauri Hintsala, Bluegiga, <lauri.hintsala@bluegiga.com>
4 * Veli-Pekka Peltola, Bluegiga, <veli-pekka.peltola@bluegiga.com>
6 * based on: mach-mx28evk.c
7 * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
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.
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.
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>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/time.h>
34 #include <mach/common.h>
35 #include <mach/digctl.h>
36 #include <mach/iomux-mx28.h>
38 #include "devices-mx28.h"
40 #define APX4DEVKIT_GPIO_USERLED MXS_GPIO_NR(3, 28)
42 static const iomux_cfg_t apx4devkit_pads
[] __initconst
= {
44 MX28_PAD_PWM0__DUART_RX
| MXS_PAD_CTRL
,
45 MX28_PAD_PWM1__DUART_TX
| MXS_PAD_CTRL
,
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
,
54 MX28_PAD_AUART1_RX__AUART1_RX
| MXS_PAD_CTRL
,
55 MX28_PAD_AUART1_TX__AUART1_TX
| MXS_PAD_CTRL
,
58 MX28_PAD_SSP2_SCK__AUART2_RX
| MXS_PAD_CTRL
,
59 MX28_PAD_SSP2_MOSI__AUART2_TX
| MXS_PAD_CTRL
,
62 MX28_PAD_SSP2_MISO__AUART3_RX
| MXS_PAD_CTRL
,
63 MX28_PAD_SSP2_SS0__AUART3_TX
| MXS_PAD_CTRL
,
65 #define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP)
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
,
78 MX28_PAD_I2C0_SCL__I2C0_SCL
,
79 MX28_PAD_I2C0_SDA__I2C0_SDA
,
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
),
106 MX28_PAD_PWM3__GPIO_3_28
| MXS_PAD_CTRL
,
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
),
122 static const struct gpio_led apx4devkit_leds
[] __initconst
= {
125 .default_trigger
= "heartbeat",
126 .gpio
= APX4DEVKIT_GPIO_USERLED
,
130 static const struct gpio_led_platform_data apx4devkit_led_data __initconst
= {
131 .leds
= apx4devkit_leds
,
132 .num_leds
= ARRAY_SIZE(apx4devkit_leds
),
135 static const struct fec_platform_data mx28_fec_pdata __initconst
= {
136 .phy
= PHY_INTERFACE_MODE_RMII
,
139 static const struct mxs_mmc_platform_data apx4devkit_mmc_pdata __initconst
= {
141 .flags
= SLOTF_4_BIT_CAPABLE
,
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 */
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"),
156 static struct regulator_init_data apx4devkit_vdd_reg_init_data
= {
161 .consumer_supplies
= apx4devkit_audio_consumer_supplies
,
162 .num_consumer_supplies
= ARRAY_SIZE(apx4devkit_audio_consumer_supplies
),
165 static struct fixed_voltage_config apx4devkit_vdd_pdata
= {
166 .supply_name
= "board-3V3",
167 .microvolts
= 3300000,
169 .enabled_at_boot
= 1,
170 .init_data
= &apx4devkit_vdd_reg_init_data
,
173 static struct platform_device apx4devkit_voltage_regulator
= {
174 .name
= "reg-fixed-voltage",
178 .platform_data
= &apx4devkit_vdd_pdata
,
182 static void __init
apx4devkit_add_regulators(void)
184 platform_device_register(&apx4devkit_voltage_regulator
);
187 static void __init
apx4devkit_add_regulators(void) {}
190 static const struct mxs_saif_platform_data
191 apx4devkit_mxs_saif_pdata
[] __initconst
= {
192 /* working on EXTMSTR0 mode (saif0 master, saif1 slave) */
202 static int apx4devkit_phy_fixup(struct phy_device
*phy
)
204 phy
->dev_flags
|= MICREL_PHY_50MHZ_CLK
;
208 static void __init
apx4devkit_fec_phy_clk_enable(void)
212 /* Enable fec phy clock */
213 clk
= clk_get_sys("enet_out", NULL
);
215 clk_prepare_enable(clk
);
218 static void __init
apx4devkit_init(void)
222 mxs_iomux_setup_multiple_pads(apx4devkit_pads
,
223 ARRAY_SIZE(apx4devkit_pads
));
232 * Register fixup for the Micrel KS8031 PHY clock
233 * (shares same ID with KS8051)
235 phy_register_fixup_for_uid(PHY_ID_KS8051
, MICREL_PHY_ID_MASK
,
236 apx4devkit_phy_fixup
);
238 apx4devkit_fec_phy_clk_enable();
239 mx28_add_fec(0, &mx28_fec_pdata
);
241 mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata
);
243 gpio_led_register_device(0, &apx4devkit_led_data
);
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]);
249 apx4devkit_add_regulators();
252 i2c_register_board_info(0, apx4devkit_i2c_boardinfo
,
253 ARRAY_SIZE(apx4devkit_i2c_boardinfo
));
255 mxs_add_platform_device("mxs-sgtl5000", 0, NULL
, 0, NULL
, 0);
258 static void __init
apx4devkit_timer_init(void)
263 static struct sys_timer apx4devkit_timer
= {
264 .init
= apx4devkit_timer_init
,
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
,