1 /*
2 * Board support file for Nokia RM-680.
3 *
4 * Copyright (C) 2010 Nokia
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11 #include <linux/io.h>
12 #include <linux/i2c.h>
13 #include <linux/gpio.h>
14 #include <linux/init.h>
15 #include <linux/i2c/twl.h>
16 #include <linux/platform_device.h>
17 #include <linux/regulator/fixed.h>
18 #include <linux/regulator/machine.h>
19 #include <linux/regulator/consumer.h>
20
21 #include <asm/mach/arch.h>
22 #include <asm/mach-types.h>
23
24 #include <plat/i2c.h>
25 #include <plat/mmc.h>
26 #include <plat/usb.h>
27 #include <plat/gpmc.h>
28 #include "common.h"
29 #include <plat/onenand.h>
30
31 #include "mux.h"
32 #include "hsmmc.h"
33 #include "sdram-nokia.h"
34 #include "common-board-devices.h"
35
36 static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
37 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
38 };
39
40 /* Fixed regulator for internal eMMC */
41 static struct regulator_init_data rm680_vemmc = {
42 .constraints = {
43 .name = "rm680_vemmc",
44 .valid_modes_mask = REGULATOR_MODE_NORMAL
45 | REGULATOR_MODE_STANDBY,
46 .valid_ops_mask = REGULATOR_CHANGE_STATUS
47 | REGULATOR_CHANGE_MODE,
48 },
49 .num_consumer_supplies = ARRAY_SIZE(rm680_vemmc_consumers),
50 .consumer_supplies = rm680_vemmc_consumers,
51 };
52
53 static struct fixed_voltage_config rm680_vemmc_config = {
54 .supply_name = "VEMMC",
55 .microvolts = 2900000,
56 .gpio = 157,
57 .startup_delay = 150,
58 .enable_high = 1,
59 .init_data = &rm680_vemmc,
60 };
61
62 static struct platform_device rm680_vemmc_device = {
63 .name = "reg-fixed-voltage",
64 .dev = {
65 .platform_data = &rm680_vemmc_config,
66 },
67 };
68
69 static struct platform_device *rm680_peripherals_devices[] __initdata = {
70 &rm680_vemmc_device,
71 };
72
73 /* TWL */
74 static struct twl4030_gpio_platform_data rm680_gpio_data = {
75 .gpio_base = OMAP_MAX_GPIO_LINES,
76 .irq_base = TWL4030_GPIO_IRQ_BASE,
77 .irq_end = TWL4030_GPIO_IRQ_END,
78 .pullups = BIT(0),
79 .pulldowns = BIT(1) | BIT(2) | BIT(8) | BIT(15),
80 };
81
82 static struct twl4030_platform_data rm680_twl_data = {
83 .gpio = &rm680_gpio_data,
84 /* add rest of the children here */
85 };
86
rm680_i2c_init(void)87 static void __init rm680_i2c_init(void)
88 {
89 omap3_pmic_get_config(&rm680_twl_data, TWL_COMMON_PDATA_USB, 0);
90 omap_pmic_init(1, 2900, "twl5031", INT_34XX_SYS_NIRQ, &rm680_twl_data);
91 omap_register_i2c_bus(2, 400, NULL, 0);
92 omap_register_i2c_bus(3, 400, NULL, 0);
93 }
94
95 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
96 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
97 static struct omap_onenand_platform_data board_onenand_data[] = {
98 {
99 .gpio_irq = 65,
100 .flags = ONENAND_SYNC_READWRITE,
101 }
102 };
103 #endif
104
105 /* eMMC */
106 static struct omap2_hsmmc_info mmc[] __initdata = {
107 {
108 .name = "internal",
109 .mmc = 2,
110 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
111 .gpio_cd = -EINVAL,
112 .gpio_wp = -EINVAL,
113 },
114 { /* Terminator */ }
115 };
116
rm680_peripherals_init(void)117 static void __init rm680_peripherals_init(void)
118 {
119 platform_add_devices(rm680_peripherals_devices,
120 ARRAY_SIZE(rm680_peripherals_devices));
121 rm680_i2c_init();
122 gpmc_onenand_init(board_onenand_data);
123 omap2_hsmmc_init(mmc);
124 }
125
126 #ifdef CONFIG_OMAP_MUX
127 static struct omap_board_mux board_mux[] __initdata = {
128 { .reg_offset = OMAP_MUX_TERMINATOR },
129 };
130 #endif
131
rm680_init(void)132 static void __init rm680_init(void)
133 {
134 struct omap_sdrc_params *sdrc_params;
135
136 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
137 omap_serial_init();
138
139 sdrc_params = nokia_get_sdram_timings();
140 omap_sdrc_init(sdrc_params, sdrc_params);
141
142 usb_musb_init(NULL);
143 rm680_peripherals_init();
144 }
145
146 MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
147 .atag_offset = 0x100,
148 .reserve = omap_reserve,
149 .map_io = omap3_map_io,
150 .init_early = omap3630_init_early,
151 .init_irq = omap3_init_irq,
152 .handle_irq = omap3_intc_handle_irq,
153 .init_machine = rm680_init,
154 .timer = &omap3_timer,
155 .restart = omap_prcm_restart,
156 MACHINE_END
157