arch/arm/mach-s3c64xx/mach-smartq7.c

   1 /*
   2  * linux/arch/arm/mach-s3c64xx/mach-smartq7.c
   3  *
   4  * Copyright (C) 2010 Maurus Cuelenaere
   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
  12 #include <linux/fb.h>
  13 #include <linux/gpio.h>
  14 #include <linux/gpio_keys.h>
  15 #include <linux/i2c-gpio.h>
  16 #include <linux/init.h>
  17 #include <linux/input.h>
  18 #include <linux/leds.h>
  19 #include <linux/platform_device.h>
  20
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23
  24 #include <mach/map.h>
  25 #include <mach/regs-fb.h>
  26 #include <mach/regs-gpio.h>
  27 #include <mach/s3c6410.h>
  28
  29 #include <plat/cpu.h>
  30 #include <plat/devs.h>
  31 #include <plat/fb.h>
  32 #include <plat/gpio-cfg.h>
  33
  34 #include "mach-smartq.h"
  35
  36 static void __init smartq7_lcd_setup_gpio(void)
  37 {
  38         gpio_request(S3C64XX_GPM(0), "LCD CSB pin");
  39         gpio_request(S3C64XX_GPM(3), "LCD power");
  40         gpio_request(S3C64XX_GPM(4), "LCD power status");
  41
  42         /* turn power off */
  43         gpio_direction_output(S3C64XX_GPM(0), 1);
  44         gpio_direction_output(S3C64XX_GPM(3), 0);
  45         gpio_direction_input(S3C64XX_GPM(4));
  46 }
  47
  48 static struct i2c_gpio_platform_data smartq7_lcd_control = {
  49         .sda_pin                = S3C64XX_GPM(2),
  50         .scl_pin                = S3C64XX_GPM(1),
  51         .sda_is_open_drain      = 1,
  52         .scl_is_open_drain      = 1,
  53 };
  54
  55 static struct platform_device smartq7_lcd_control_device = {
  56         .name                   = "i2c-gpio",
  57         .id                     = 1,
  58         .dev.platform_data      = &smartq7_lcd_control,
  59 };
  60
  61 static struct gpio_led smartq7_leds[] __initdata = {
  62         {
  63                 .name                   = "smartq7:red",
  64                 .active_low             = 1,
  65                 .gpio                   = S3C64XX_GPN(8),
  66         },
  67         {
  68                 .name                   = "smartq7:green",
  69                 .active_low             = 1,
  70                 .gpio                   = S3C64XX_GPN(9),
  71         },
  72 };
  73
  74 static struct gpio_led_platform_data smartq7_led_data = {
  75         .num_leds = ARRAY_SIZE(smartq7_leds),
  76         .leds = smartq7_leds,
  77 };
  78
  79 static struct platform_device smartq7_leds_device = {
  80         .name                   = "leds-gpio",
  81         .id                     = -1,
  82         .dev.platform_data      = &smartq7_led_data,
  83 };
  84
  85 /* Labels according to the SmartQ manual */
  86 static struct gpio_keys_button smartq7_buttons[] = {
  87         {
  88                 .gpio                   = S3C64XX_GPL(14),
  89                 .code                   = KEY_POWER,
  90                 .desc                   = "Power",
  91                 .active_low             = 1,
  92                 .debounce_interval      = 5,
  93                 .type                   = EV_KEY,
  94         },
  95         {
  96                 .gpio                   = S3C64XX_GPN(2),
  97                 .code                   = KEY_FN,
  98                 .desc                   = "Function",
  99                 .active_low             = 1,
 100                 .debounce_interval      = 5,
 101                 .type                   = EV_KEY,
 102         },
 103         {
 104                 .gpio                   = S3C64XX_GPN(3),
 105                 .code                   = KEY_KPMINUS,
 106                 .desc                   = "Minus",
 107                 .active_low             = 1,
 108                 .debounce_interval      = 5,
 109                 .type                   = EV_KEY,
 110         },
 111         {
 112                 .gpio                   = S3C64XX_GPN(4),
 113                 .code                   = KEY_KPPLUS,
 114                 .desc                   = "Plus",
 115                 .active_low             = 1,
 116                 .debounce_interval      = 5,
 117                 .type                   = EV_KEY,
 118         },
 119         {
 120                 .gpio                   = S3C64XX_GPN(12),
 121                 .code                   = KEY_ENTER,
 122                 .desc                   = "Enter",
 123                 .active_low             = 1,
 124                 .debounce_interval      = 5,
 125                 .type                   = EV_KEY,
 126         },
 127         {
 128                 .gpio                   = S3C64XX_GPN(15),
 129                 .code                   = KEY_ESC,
 130                 .desc                   = "Cancel",
 131                 .active_low             = 1,
 132                 .debounce_interval      = 5,
 133                 .type                   = EV_KEY,
 134         },
 135 };
 136
 137 static struct gpio_keys_platform_data smartq7_buttons_data  = {
 138         .buttons        = smartq7_buttons,
 139         .nbuttons       = ARRAY_SIZE(smartq7_buttons),
 140 };
 141
 142 static struct platform_device smartq7_buttons_device  = {
 143         .name           = "gpio-keys",
 144         .id             = 0,
 145         .num_resources  = 0,
 146         .dev            = {
 147                 .platform_data  = &smartq7_buttons_data,
 148         }
 149 };
 150
 151 static struct s3c_fb_pd_win smartq7_fb_win0 = {
 152         .win_mode       = {
 153                 .pixclock       = 1000000000000ULL /
 154                                 ((3+10+5+800)*(1+3+20+480)*80),
 155                 .left_margin    = 3,
 156                 .right_margin   = 5,
 157                 .upper_margin   = 1,
 158                 .lower_margin   = 20,
 159                 .hsync_len      = 10,
 160                 .vsync_len      = 3,
 161                 .xres           = 800,
 162                 .yres           = 480,
 163         },
 164         .max_bpp        = 32,
 165         .default_bpp    = 16,
 166 };
 167
 168 static struct s3c_fb_platdata smartq7_lcd_pdata __initdata = {
 169         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 170         .win[0]         = &smartq7_fb_win0,
 171         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 172         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC |
 173                           VIDCON1_INV_VCLK,
 174 };
 175
 176 static struct platform_device *smartq7_devices[] __initdata = {
 177         &smartq7_leds_device,
 178         &smartq7_buttons_device,
 179         &smartq7_lcd_control_device,
 180 };
 181
 182 static void __init smartq7_machine_init(void)
 183 {
 184         s3c_fb_set_platdata(&smartq7_lcd_pdata);
 185
 186         smartq_machine_init();
 187         smartq7_lcd_setup_gpio();
 188
 189         platform_add_devices(smartq7_devices, ARRAY_SIZE(smartq7_devices));
 190 }
 191
 192 MACHINE_START(SMARTQ7, "SmartQ 7")
 193         /* Maintainer: Maurus Cuelenaere <mcuelenaere AT gmail DOT com> */
 194         .phys_io        = S3C_PA_UART & 0xfff00000,
 195         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 196         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 197         .init_irq       = s3c6410_init_irq,
 198         .map_io         = smartq_map_io,
 199         .init_machine   = smartq7_machine_init,
 200         .timer          = &s3c24xx_timer,
 201 MACHINE_END