arch/arm/mach-s5pv310/mach-universal_c210.c

   1 /* linux/arch/arm/mach-s5pv310/mach-universal_c210.c
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8 */
   9
  10 #include <linux/platform_device.h>
  11 #include <linux/serial_core.h>
  12 #include <linux/input.h>
  13 #include <linux/gpio_keys.h>
  14 #include <linux/gpio.h>
  15
  16 #include <asm/mach/arch.h>
  17 #include <asm/mach-types.h>
  18 #include <asm/hardware/cache-l2x0.h>
  19
  20 #include <plat/regs-serial.h>
  21 #include <plat/s5pv310.h>
  22 #include <plat/cpu.h>
  23
  24 #include <mach/map.h>
  25
  26 /* Following are default values for UCON, ULCON and UFCON UART registers */
  27 #define UNIVERSAL_UCON_DEFAULT  (S3C2410_UCON_TXILEVEL |        \
  28                                  S3C2410_UCON_RXILEVEL |        \
  29                                  S3C2410_UCON_TXIRQMODE |       \
  30                                  S3C2410_UCON_RXIRQMODE |       \
  31                                  S3C2410_UCON_RXFIFO_TOI |      \
  32                                  S3C2443_UCON_RXERR_IRQEN)
  33
  34 #define UNIVERSAL_ULCON_DEFAULT S3C2410_LCON_CS8
  35
  36 #define UNIVERSAL_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE |       \
  37                                  S5PV210_UFCON_TXTRIG256 |      \
  38                                  S5PV210_UFCON_RXTRIG256)
  39
  40 static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = {
  41         [0] = {
  42                 .hwport         = 0,
  43                 .ucon           = UNIVERSAL_UCON_DEFAULT,
  44                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
  45                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
  46         },
  47         [1] = {
  48                 .hwport         = 1,
  49                 .ucon           = UNIVERSAL_UCON_DEFAULT,
  50                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
  51                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
  52         },
  53         [2] = {
  54                 .hwport         = 2,
  55                 .ucon           = UNIVERSAL_UCON_DEFAULT,
  56                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
  57                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
  58         },
  59         [3] = {
  60                 .hwport         = 3,
  61                 .ucon           = UNIVERSAL_UCON_DEFAULT,
  62                 .ulcon          = UNIVERSAL_ULCON_DEFAULT,
  63                 .ufcon          = UNIVERSAL_UFCON_DEFAULT,
  64         },
  65 };
  66
  67 static struct gpio_keys_button universal_gpio_keys_tables[] = {
  68         {
  69                 .code                   = KEY_VOLUMEUP,
  70                 .gpio                   = S5PV310_GPX2(0),      /* XEINT16 */
  71                 .desc                   = "gpio-keys: KEY_VOLUMEUP",
  72                 .type                   = EV_KEY,
  73                 .active_low             = 1,
  74                 .debounce_interval      = 1,
  75         }, {
  76                 .code                   = KEY_VOLUMEDOWN,
  77                 .gpio                   = S5PV310_GPX2(1),      /* XEINT17 */
  78                 .desc                   = "gpio-keys: KEY_VOLUMEDOWN",
  79                 .type                   = EV_KEY,
  80                 .active_low             = 1,
  81                 .debounce_interval      = 1,
  82         }, {
  83                 .code                   = KEY_CONFIG,
  84                 .gpio                   = S5PV310_GPX2(2),      /* XEINT18 */
  85                 .desc                   = "gpio-keys: KEY_CONFIG",
  86                 .type                   = EV_KEY,
  87                 .active_low             = 1,
  88                 .debounce_interval      = 1,
  89         }, {
  90                 .code                   = KEY_CAMERA,
  91                 .gpio                   = S5PV310_GPX2(3),      /* XEINT19 */
  92                 .desc                   = "gpio-keys: KEY_CAMERA",
  93                 .type                   = EV_KEY,
  94                 .active_low             = 1,
  95                 .debounce_interval      = 1,
  96         }, {
  97                 .code                   = KEY_OK,
  98                 .gpio                   = S5PV310_GPX3(5),      /* XEINT29 */
  99                 .desc                   = "gpio-keys: KEY_OK",
 100                 .type                   = EV_KEY,
 101                 .active_low             = 1,
 102                 .debounce_interval      = 1,
 103         },
 104 };
 105
 106 static struct gpio_keys_platform_data universal_gpio_keys_data = {
 107         .buttons        = universal_gpio_keys_tables,
 108         .nbuttons       = ARRAY_SIZE(universal_gpio_keys_tables),
 109 };
 110
 111 static struct platform_device universal_gpio_keys = {
 112         .name                   = "gpio-keys",
 113         .dev                    = {
 114                 .platform_data  = &universal_gpio_keys_data,
 115         },
 116 };
 117
 118 static struct platform_device *universal_devices[] __initdata = {
 119         &universal_gpio_keys,
 120 };
 121
 122 static void __init universal_map_io(void)
 123 {
 124         s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 125         s3c24xx_init_clocks(24000000);
 126         s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
 127 }
 128
 129 static void __init universal_machine_init(void)
 130 {
 131 #ifdef CONFIG_CACHE_L2X0
 132         l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
 133 #endif
 134
 135         /* Last */
 136         platform_add_devices(universal_devices, ARRAY_SIZE(universal_devices));
 137 }
 138
 139 MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
 140         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 141         .phys_io        = S3C_PA_UART & 0xfff00000,
 142         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 143         .boot_params    = S5P_PA_SDRAM + 0x100,
 144         .init_irq       = s5pv310_init_irq,
 145         .map_io         = universal_map_io,
 146         .init_machine   = universal_machine_init,
 147         .timer          = &s5pv310_timer,
 148 MACHINE_END