2 * Board support file for Nokia N900 (aka RX-51).
4 * Copyright (C) 2007, 2008 Nokia
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.
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>
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>
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
27 #include <linux/omap-dma.h>
33 #include "sdram-nokia.h"
35 #define RX51_GPIO_SLEEP_IND 162
37 static struct gpio_led gpio_leds[] = {
40 .gpio = RX51_GPIO_SLEEP_IND,
44 static struct gpio_led_platform_data gpio_led_info = {
46 .num_leds = ARRAY_SIZE(gpio_leds),
49 static struct platform_device leds_gpio = {
53 .platform_data = &gpio_led_info,
58 * cpuidle C-states definition for rx51.
60 * The 'exit_latency' field is the sum of sleep
61 * and wake-up latencies.
63 ---------------------------------------------
64 | state | exit_latency | target_residency |
65 ---------------------------------------------
66 | C1 | 110 + 162 | 5 |
67 | C2 | 106 + 180 | 309 |
68 | C3 | 107 + 410 | 46057 |
69 | C4 | 121 + 3374 | 46057 |
70 | C5 | 855 + 1146 | 46057 |
71 | C6 | 7580 + 4134 | 484329 |
72 | C7 | 7505 + 15274 | 484329 |
73 ---------------------------------------------
77 extern void __init rx51_peripherals_init(void);
79 #ifdef CONFIG_OMAP_MUX
80 static struct omap_board_mux board_mux[] __initdata = {
81 { .reg_offset = OMAP_MUX_TERMINATOR },
85 static struct omap_musb_board_data musb_board_data = {
86 .interface_type = MUSB_INTERFACE_ULPI,
87 .mode = MUSB_PERIPHERAL,
91 static void __init rx51_init(void)
93 struct omap_sdrc_params *sdrc_params;
95 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
98 sdrc_params = nokia_get_sdram_timings();
99 omap_sdrc_init(sdrc_params, sdrc_params);
101 usb_musb_init(&musb_board_data);
102 rx51_peripherals_init();
104 /* Ensure SDRC pins are mux'd for self-refresh */
105 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
106 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
108 platform_device_register(&leds_gpio);
111 static void __init rx51_reserve(void)
116 MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
117 /* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */
118 .atag_offset = 0x100,
119 .reserve = rx51_reserve,
120 .map_io = omap3_map_io,
121 .init_early = omap3430_init_early,
122 .init_irq = omap3_init_irq,
123 .handle_irq = omap3_intc_handle_irq,
124 .init_machine = rx51_init,
125 .init_late = omap3430_init_late,
126 .timer = &omap3_timer,
127 .restart = omap3xxx_restart,