arch/arm/mach-s3c64xx/mach-anw6410.c

   1 /* linux/arch/arm/mach-s3c64xx/mach-anw6410.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  * Copyright 2009 Kwangwoo Lee
   8  *      Kwangwoo Lee <kwangwoo.lee@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14 */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/types.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/list.h>
  20 #include <linux/timer.h>
  21 #include <linux/init.h>
  22 #include <linux/serial_core.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/io.h>
  25 #include <linux/i2c.h>
  26 #include <linux/fb.h>
  27 #include <linux/gpio.h>
  28 #include <linux/delay.h>
  29 #include <linux/dm9000.h>
  30
  31 #include <video/platform_lcd.h>
  32
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35 #include <asm/mach/irq.h>
  36
  37 #include <mach/hardware.h>
  38 #include <mach/map.h>
  39
  40 #include <asm/irq.h>
  41 #include <asm/mach-types.h>
  42
  43 #include <plat/regs-serial.h>
  44 #include <plat/iic.h>
  45 #include <plat/fb.h>
  46 #include <plat/regs-fb-v4.h>
  47
  48 #include <mach/s3c6410.h>
  49 #include <plat/clock.h>
  50 #include <plat/devs.h>
  51 #include <plat/cpu.h>
  52 #include <mach/regs-gpio.h>
  53 #include <mach/regs-modem.h>
  54
  55 /* DM9000 */
  56 #define ANW6410_PA_DM9000       (0x18000000)
  57
  58 /* A hardware buffer to control external devices is mapped at 0x30000000.
  59  * It can not be read. So current status must be kept in anw6410_extdev_status.
  60  */
  61 #define ANW6410_VA_EXTDEV       S3C_ADDR(0x02000000)
  62 #define ANW6410_PA_EXTDEV       (0x30000000)
  63
  64 #define ANW6410_EN_DM9000       (1<<11)
  65 #define ANW6410_EN_LCD          (1<<14)
  66
  67 static __u32 anw6410_extdev_status;
  68
  69 static struct s3c2410_uartcfg anw6410_uartcfgs[] __initdata = {
  70         [0] = {
  71                 .hwport      = 0,
  72                 .flags       = 0,
  73                 .ucon        = 0x3c5,
  74                 .ulcon       = 0x03,
  75                 .ufcon       = 0x51,
  76         },
  77         [1] = {
  78                 .hwport      = 1,
  79                 .flags       = 0,
  80                 .ucon        = 0x3c5,
  81                 .ulcon       = 0x03,
  82                 .ufcon       = 0x51,
  83         },
  84 };
  85
  86 /* framebuffer and LCD setup. */
  87 static void __init anw6410_lcd_mode_set(void)
  88 {
  89         u32 tmp;
  90
  91         /* set the LCD type */
  92         tmp = __raw_readl(S3C64XX_SPCON);
  93         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
  94         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
  95         __raw_writel(tmp, S3C64XX_SPCON);
  96
  97         /* remove the LCD bypass */
  98         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
  99         tmp &= ~MIFPCON_LCD_BYPASS;
 100         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 101 }
 102
 103 /* GPF1 = LCD panel power
 104  * GPF4 = LCD backlight control
 105  */
 106 static void anw6410_lcd_power_set(struct plat_lcd_data *pd,
 107                                    unsigned int power)
 108 {
 109         if (power) {
 110                 anw6410_extdev_status |= (ANW6410_EN_LCD << 16);
 111                 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 112
 113                 gpio_direction_output(S3C64XX_GPF(1), 1);
 114                 gpio_direction_output(S3C64XX_GPF(4), 1);
 115         } else {
 116                 anw6410_extdev_status &= ~(ANW6410_EN_LCD << 16);
 117                 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 118
 119                 gpio_direction_output(S3C64XX_GPF(1), 0);
 120                 gpio_direction_output(S3C64XX_GPF(4), 0);
 121         }
 122 }
 123
 124 static struct plat_lcd_data anw6410_lcd_power_data = {
 125         .set_power      = anw6410_lcd_power_set,
 126 };
 127
 128 static struct platform_device anw6410_lcd_powerdev = {
 129         .name                   = "platform-lcd",
 130         .dev.parent             = &s3c_device_fb.dev,
 131         .dev.platform_data      = &anw6410_lcd_power_data,
 132 };
 133
 134 static struct s3c_fb_pd_win anw6410_fb_win0 = {
 135         /* this is to ensure we use win0 */
 136         .win_mode       = {
 137                 .left_margin    = 8,
 138                 .right_margin   = 13,
 139                 .upper_margin   = 7,
 140                 .lower_margin   = 5,
 141                 .hsync_len      = 3,
 142                 .vsync_len      = 1,
 143                 .xres           = 800,
 144                 .yres           = 480,
 145         },
 146         .max_bpp        = 32,
 147         .default_bpp    = 16,
 148 };
 149
 150 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 151 static struct s3c_fb_platdata anw6410_lcd_pdata __initdata = {
 152         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 153         .win[0]         = &anw6410_fb_win0,
 154         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 155         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 156 };
 157
 158 /* DM9000AEP 10/100 ethernet controller */
 159 static void __init anw6410_dm9000_enable(void)
 160 {
 161         anw6410_extdev_status |= (ANW6410_EN_DM9000 << 16);
 162         __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 163 }
 164
 165 static struct resource anw6410_dm9000_resource[] = {
 166         [0] = {
 167                 .start = ANW6410_PA_DM9000,
 168                 .end   = ANW6410_PA_DM9000 + 3,
 169                 .flags = IORESOURCE_MEM,
 170         },
 171         [1] = {
 172                 .start = ANW6410_PA_DM9000 + 4,
 173                 .end   = ANW6410_PA_DM9000 + 4 + 500,
 174                 .flags = IORESOURCE_MEM,
 175         },
 176         [2] = {
 177                 .start = IRQ_EINT(15),
 178                 .end   = IRQ_EINT(15),
 179                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
 180         },
 181 };
 182
 183 static struct dm9000_plat_data anw6410_dm9000_pdata = {
 184         .flags    = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 185         /* dev_addr can be set to provide hwaddr. */
 186 };
 187
 188 static struct platform_device anw6410_device_eth = {
 189         .name   = "dm9000",
 190         .id     = -1,
 191         .num_resources  = ARRAY_SIZE(anw6410_dm9000_resource),
 192         .resource       = anw6410_dm9000_resource,
 193         .dev    = {
 194                 .platform_data  = &anw6410_dm9000_pdata,
 195         },
 196 };
 197
 198 static struct map_desc anw6410_iodesc[] __initdata = {
 199         {
 200                 .virtual        = (unsigned long)ANW6410_VA_EXTDEV,
 201                 .pfn            = __phys_to_pfn(ANW6410_PA_EXTDEV),
 202                 .length         = SZ_64K,
 203                 .type           = MT_DEVICE,
 204         },
 205 };
 206
 207 static struct platform_device *anw6410_devices[] __initdata = {
 208         &s3c_device_fb,
 209         &anw6410_lcd_powerdev,
 210         &anw6410_device_eth,
 211 };
 212
 213 static void __init anw6410_map_io(void)
 214 {
 215         s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc));
 216         s3c24xx_init_clocks(12000000);
 217         s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs));
 218
 219         anw6410_lcd_mode_set();
 220 }
 221
 222 static void __init anw6410_machine_init(void)
 223 {
 224         s3c_fb_set_platdata(&anw6410_lcd_pdata);
 225
 226         gpio_request(S3C64XX_GPF(1), "panel power");
 227         gpio_request(S3C64XX_GPF(4), "LCD backlight");
 228
 229         anw6410_dm9000_enable();
 230
 231         platform_add_devices(anw6410_devices, ARRAY_SIZE(anw6410_devices));
 232 }
 233
 234 MACHINE_START(ANW6410, "A&W6410")
 235         /* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
 236         .atag_offset    = 0x100,
 237
 238         .init_irq       = s3c6410_init_irq,
 239         .map_io         = anw6410_map_io,
 240         .init_machine   = anw6410_machine_init,
 241         .timer          = &s3c24xx_timer,
 242 MACHINE_END