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