arch/arm/mach-omap2/board-rx51.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-rx51.c
   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
  21 #include <mach/hardware.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/map.h>
  25
  26 #include <plat/mcspi.h>
  27 #include <plat/board.h>
  28 #include <plat/common.h>
  29 #include <plat/dma.h>
  30 #include <plat/gpmc.h>
  31 #include <plat/usb.h>
  32
  33 #include "mux.h"
  34 #include "pm.h"
  35 #include "sdram-nokia.h"
  36
  37 #define RX51_GPIO_SLEEP_IND 162
  38
  39 extern void rx51_video_mem_init(void);
  40
  41 static struct gpio_led gpio_leds[] = {
  42         {
  43                 .name   = "sleep_ind",
  44                 .gpio   = RX51_GPIO_SLEEP_IND,
  45         },
  46 };
  47
  48 static struct gpio_led_platform_data gpio_led_info = {
  49         .leds           = gpio_leds,
  50         .num_leds       = ARRAY_SIZE(gpio_leds),
  51 };
  52
  53 static struct platform_device leds_gpio = {
  54         .name   = "leds-gpio",
  55         .id     = -1,
  56         .dev    = {
  57                 .platform_data  = &gpio_led_info,
  58         },
  59 };
  60
  61 /*
  62  * cpuidle C-states definition override from the default values.
  63  * The 'exit_latency' field is the sum of sleep and wake-up latencies.
  64  */
  65 static struct cpuidle_params rx51_cpuidle_params[] = {
  66         /* C1 */
  67         {110 + 162, 5 , 1},
  68         /* C2 */
  69         {106 + 180, 309, 1},
  70         /* C3 */
  71         {107 + 410, 46057, 0},
  72         /* C4 */
  73         {121 + 3374, 46057, 0},
  74         /* C5 */
  75         {855 + 1146, 46057, 1},
  76         /* C6 */
  77         {7580 + 4134, 484329, 0},
  78         /* C7 */
  79         {7505 + 15274, 484329, 1},
  80 };
  81
  82 static void __init rx51_init_early(void)
  83 {
  84         struct omap_sdrc_params *sdrc_params;
  85
  86         omap2_init_common_infrastructure();
  87         sdrc_params = nokia_get_sdram_timings();
  88         omap2_init_common_devices(sdrc_params, sdrc_params);
  89 }
  90
  91 extern void __init rx51_peripherals_init(void);
  92
  93 #ifdef CONFIG_OMAP_MUX
  94 static struct omap_board_mux board_mux[] __initdata = {
  95         { .reg_offset = OMAP_MUX_TERMINATOR },
  96 };
  97 #endif
  98
  99 static struct omap_musb_board_data musb_board_data = {
 100         .interface_type         = MUSB_INTERFACE_ULPI,
 101         .mode                   = MUSB_PERIPHERAL,
 102         .power                  = 0,
 103 };
 104
 105 static void __init rx51_init(void)
 106 {
 107         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 108         omap3_pm_init_cpuidle(rx51_cpuidle_params);
 109         omap_serial_init();
 110         usb_musb_init(&musb_board_data);
 111         rx51_peripherals_init();
 112
 113         /* Ensure SDRC pins are mux'd for self-refresh */
 114         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 115         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 116
 117         platform_device_register(&leds_gpio);
 118 }
 119
 120 static void __init rx51_map_io(void)
 121 {
 122         omap2_set_globals_3xxx();
 123         omap34xx_map_common_io();
 124 }
 125
 126 static void __init rx51_reserve(void)
 127 {
 128         rx51_video_mem_init();
 129         omap_reserve();
 130 }
 131
 132 MACHINE_START(NOKIA_RX51, "Nokia RX-51 board")
 133         /* Maintainer: Lauri Leukkunen <lauri.leukkunen@nokia.com> */
 134         .atag_offset    = 0x100,
 135         .reserve        = rx51_reserve,
 136         .map_io         = rx51_map_io,
 137         .init_early     = rx51_init_early,
 138         .init_irq       = omap3_init_irq,
 139         .init_machine   = rx51_init,
 140         .timer          = &omap3_timer,
 141 MACHINE_END