Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[linux-3.10.git] / arch / arm / mach-omap2 / board-rx51.c
1 /*
2  * Board support file for Nokia N900 (aka RX-51).
3  *
4  * Copyright (C) 2007, 2008 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/kernel.h>
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/delay.h>
15 #include <linux/err.h>
16 #include <linux/clk.h>
17 #include <linux/io.h>
18 #include <linux/gpio.h>
19 #include <linux/leds.h>
20 #include <linux/usb/musb.h>
21 #include <linux/platform_data/spi-omap2-mcspi.h>
22
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26
27 #include <plat-omap/dma-omap.h>
28
29 #include "common.h"
30 #include "mux.h"
31 #include "gpmc.h"
32 #include "pm.h"
33 #include "sdram-nokia.h"
34
35 #define RX51_GPIO_SLEEP_IND 162
36
37 extern void rx51_video_mem_init(void);
38
39 static struct gpio_led gpio_leds[] = {
40         {
41                 .name   = "sleep_ind",
42                 .gpio   = RX51_GPIO_SLEEP_IND,
43         },
44 };
45
46 static struct gpio_led_platform_data gpio_led_info = {
47         .leds           = gpio_leds,
48         .num_leds       = ARRAY_SIZE(gpio_leds),
49 };
50
51 static struct platform_device leds_gpio = {
52         .name   = "leds-gpio",
53         .id     = -1,
54         .dev    = {
55                 .platform_data  = &gpio_led_info,
56         },
57 };
58
59 /*
60  * cpuidle C-states definition for rx51.
61  *
62  * The 'exit_latency' field is the sum of sleep
63  * and wake-up latencies.
64
65     ---------------------------------------------
66    | state |  exit_latency  |  target_residency  |
67     ---------------------------------------------
68    |  C1   |    110 + 162   |            5       |
69    |  C2   |    106 + 180   |          309       |
70    |  C3   |    107 + 410   |        46057       |
71    |  C4   |    121 + 3374  |        46057       |
72    |  C5   |    855 + 1146  |        46057       |
73    |  C6   |   7580 + 4134  |       484329       |
74    |  C7   |   7505 + 15274 |       484329       |
75     ---------------------------------------------
76
77 */
78
79 extern void __init rx51_peripherals_init(void);
80
81 #ifdef CONFIG_OMAP_MUX
82 static struct omap_board_mux board_mux[] __initdata = {
83         { .reg_offset = OMAP_MUX_TERMINATOR },
84 };
85 #endif
86
87 static struct omap_musb_board_data musb_board_data = {
88         .interface_type         = MUSB_INTERFACE_ULPI,
89         .mode                   = MUSB_PERIPHERAL,
90         .power                  = 0,
91 };
92
93 static void __init rx51_init(void)
94 {
95         struct omap_sdrc_params *sdrc_params;
96
97         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
98         omap_serial_init();
99
100         sdrc_params = nokia_get_sdram_timings();
101         omap_sdrc_init(sdrc_params, sdrc_params);
102
103         usb_musb_init(&musb_board_data);
104         rx51_peripherals_init();
105
106         /* Ensure SDRC pins are mux'd for self-refresh */
107         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
108         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
109
110         platform_device_register(&leds_gpio);
111 }
112
113 static void __init rx51_reserve(void)
114 {
115         rx51_video_mem_init();
116         omap_reserve();
117 }
118
119 MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
120         /* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */
121         .atag_offset    = 0x100,
122         .reserve        = rx51_reserve,
123         .map_io         = omap3_map_io,
124         .init_early     = omap3430_init_early,
125         .init_irq       = omap3_init_irq,
126         .handle_irq     = omap3_intc_handle_irq,
127         .init_machine   = rx51_init,
128         .init_late      = omap3430_init_late,
129         .timer          = &omap3_timer,
130         .restart        = omap3xxx_restart,
131 MACHINE_END