arch/arm/mach-s3c6410/mach-smdk6410.c

   1 /* linux/arch/arm/mach-s3c6410/mach-smdk6410.c
   2  *
   3  * Copyright 2008 Openmoko, Inc.
   4  * Copyright 2008 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *      http://armlinux.simtec.co.uk/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12 */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/list.h>
  18 #include <linux/timer.h>
  19 #include <linux/init.h>
  20 #include <linux/serial_core.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/io.h>
  23 #include <linux/i2c.h>
  24 #include <linux/fb.h>
  25 #include <linux/gpio.h>
  26 #include <linux/delay.h>
  27 #include <linux/smsc911x.h>
  28
  29 #include <video/platform_lcd.h>
  30
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/irq.h>
  34
  35 #include <mach/hardware.h>
  36 #include <mach/regs-fb.h>
  37 #include <mach/map.h>
  38
  39 #include <asm/irq.h>
  40 #include <asm/mach-types.h>
  41
  42 #include <plat/regs-serial.h>
  43 #include <plat/regs-modem.h>
  44 #include <plat/regs-gpio.h>
  45 #include <plat/regs-sys.h>
  46 #include <plat/iic.h>
  47 #include <plat/fb.h>
  48 #include <plat/gpio-cfg.h>
  49
  50 #include <plat/s3c6410.h>
  51 #include <plat/clock.h>
  52 #include <plat/devs.h>
  53 #include <plat/cpu.h>
  54
  55 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  56 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  57 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  58
  59 static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = {
  60         [0] = {
  61                 .hwport      = 0,
  62                 .flags       = 0,
  63                 .ucon        = 0x3c5,
  64                 .ulcon       = 0x03,
  65                 .ufcon       = 0x51,
  66         },
  67         [1] = {
  68                 .hwport      = 1,
  69                 .flags       = 0,
  70                 .ucon        = 0x3c5,
  71                 .ulcon       = 0x03,
  72                 .ufcon       = 0x51,
  73         },
  74 };
  75
  76 /* framebuffer and LCD setup. */
  77
  78 /* GPF15 = LCD backlight control
  79  * GPF13 => Panel power
  80  * GPN5 = LCD nRESET signal
  81  * PWM_TOUT1 => backlight brightness
  82  */
  83
  84 static void smdk6410_lcd_power_set(struct plat_lcd_data *pd,
  85                                    unsigned int power)
  86 {
  87         if (power) {
  88                 gpio_direction_output(S3C64XX_GPF(13), 1);
  89                 gpio_direction_output(S3C64XX_GPF(15), 1);
  90
  91                 /* fire nRESET on power up */
  92                 gpio_direction_output(S3C64XX_GPN(5), 0);
  93                 msleep(10);
  94                 gpio_direction_output(S3C64XX_GPN(5), 1);
  95                 msleep(1);
  96         } else {
  97                 gpio_direction_output(S3C64XX_GPF(15), 0);
  98                 gpio_direction_output(S3C64XX_GPF(13), 0);
  99         }
 100 }
 101
 102 static struct plat_lcd_data smdk6410_lcd_power_data = {
 103         .set_power      = smdk6410_lcd_power_set,
 104 };
 105
 106 static struct platform_device smdk6410_lcd_powerdev = {
 107         .name                   = "platform-lcd",
 108         .dev.parent             = &s3c_device_fb.dev,
 109         .dev.platform_data      = &smdk6410_lcd_power_data,
 110 };
 111
 112 static struct s3c_fb_pd_win smdk6410_fb_win0 = {
 113         /* this is to ensure we use win0 */
 114         .win_mode       = {
 115                 .pixclock       = 41094,
 116                 .left_margin    = 8,
 117                 .right_margin   = 13,
 118                 .upper_margin   = 7,
 119                 .lower_margin   = 5,
 120                 .hsync_len      = 3,
 121                 .vsync_len      = 1,
 122                 .xres           = 800,
 123                 .yres           = 480,
 124         },
 125         .max_bpp        = 32,
 126         .default_bpp    = 16,
 127 };
 128
 129 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 130 static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = {
 131         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 132         .win[0]         = &smdk6410_fb_win0,
 133         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 134         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 135 };
 136
 137 static struct resource smdk6410_smsc911x_resources[] = {
 138         [0] = {
 139                 .start = 0x18000000,
 140                 .end   = 0x18000000 + SZ_64K - 1,
 141                 .flags = IORESOURCE_MEM,
 142         },
 143         [1] = {
 144                 .start = S3C_EINT(10),
 145                 .end   = S3C_EINT(10),
 146                 .flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW,
 147         },
 148 };
 149
 150 static struct smsc911x_platform_config smdk6410_smsc911x_pdata = {
 151         .irq_polarity  = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 152         .irq_type      = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 153         .flags         = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY,
 154         .phy_interface = PHY_INTERFACE_MODE_MII,
 155 };
 156
 157
 158 static struct platform_device smdk6410_smsc911x = {
 159         .name          = "smsc911x",
 160         .id            = -1,
 161         .num_resources = ARRAY_SIZE(smdk6410_smsc911x_resources),
 162         .resource      = &smdk6410_smsc911x_resources[0],
 163         .dev = {
 164                 .platform_data = &smdk6410_smsc911x_pdata,
 165         },
 166 };
 167
 168 static struct map_desc smdk6410_iodesc[] = {};
 169
 170 static struct platform_device *smdk6410_devices[] __initdata = {
 171 #ifdef CONFIG_SMDK6410_SD_CH0
 172         &s3c_device_hsmmc0,
 173 #endif
 174 #ifdef CONFIG_SMDK6410_SD_CH1
 175         &s3c_device_hsmmc1,
 176 #endif
 177         &s3c_device_i2c0,
 178         &s3c_device_i2c1,
 179         &s3c_device_fb,
 180         &smdk6410_lcd_powerdev,
 181
 182         &smdk6410_smsc911x,
 183 };
 184
 185 static struct i2c_board_info i2c_devs0[] __initdata = {
 186         { I2C_BOARD_INFO("24c08", 0x50), },
 187         { I2C_BOARD_INFO("wm8580", 0x1b), },
 188 };
 189
 190 static struct i2c_board_info i2c_devs1[] __initdata = {
 191         { I2C_BOARD_INFO("24c128", 0x57), },    /* Samsung S524AD0XD1 */
 192 };
 193
 194 static void __init smdk6410_map_io(void)
 195 {
 196         u32 tmp;
 197
 198         s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
 199         s3c24xx_init_clocks(12000000);
 200         s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
 201
 202         /* set the LCD type */
 203
 204         tmp = __raw_readl(S3C64XX_SPCON);
 205         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
 206         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
 207         __raw_writel(tmp, S3C64XX_SPCON);
 208
 209         /* remove the lcd bypass */
 210         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 211         tmp &= ~MIFPCON_LCD_BYPASS;
 212         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 213 }
 214
 215 static void __init smdk6410_machine_init(void)
 216 {
 217         s3c_i2c0_set_platdata(NULL);
 218         s3c_i2c1_set_platdata(NULL);
 219         s3c_fb_set_platdata(&smdk6410_lcd_pdata);
 220
 221         gpio_request(S3C64XX_GPN(5), "LCD power");
 222         gpio_request(S3C64XX_GPF(13), "LCD power");
 223         gpio_request(S3C64XX_GPF(15), "LCD power");
 224
 225         i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
 226         i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
 227
 228         platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
 229 }
 230
 231 MACHINE_START(SMDK6410, "SMDK6410")
 232         /* Maintainer: Ben Dooks <ben@fluff.org> */
 233         .phys_io        = S3C_PA_UART & 0xfff00000,
 234         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 235         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 236
 237         .init_irq       = s3c6410_init_irq,
 238         .map_io         = smdk6410_map_io,
 239         .init_machine   = smdk6410_machine_init,
 240         .timer          = &s3c24xx_timer,
 241 MACHINE_END