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/serial_s3c.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/io.h>
  26 #include <linux/i2c.h>
  27 #include <linux/fb.h>
  28 #include <linux/gpio.h>
  29 #include <linux/delay.h>
  30 #include <linux/dm9000.h>
  31
  32 #include <video/platform_lcd.h>
  33 #include <video/samsung_fimd.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <mach/hardware.h>
  40 #include <mach/map.h>
  41
  42 #include <asm/irq.h>
  43 #include <asm/mach-types.h>
  44
  45 #include <linux/platform_data/i2c-s3c2410.h>
  46 #include <plat/fb.h>
  47
  48 #include <plat/clock.h>
  49 #include <plat/devs.h>
  50 #include <plat/cpu.h>
  51 #include <mach/regs-gpio.h>
  52 #include <mach/gpio-samsung.h>
  53 #include <plat/samsung-time.h>
  54
  55 #include "common.h"
  56 #include "regs-modem.h"
  57
  58 /* DM9000 */
  59 #define ANW6410_PA_DM9000       (0x18000000)
  60
  61 /* A hardware buffer to control external devices is mapped at 0x30000000.
  62  * It can not be read. So current status must be kept in anw6410_extdev_status.
  63  */
  64 #define ANW6410_VA_EXTDEV       S3C_ADDR(0x02000000)
  65 #define ANW6410_PA_EXTDEV       (0x30000000)
  66
  67 #define ANW6410_EN_DM9000       (1<<11)
  68 #define ANW6410_EN_LCD          (1<<14)
  69
  70 static __u32 anw6410_extdev_status;
  71
  72 static struct s3c2410_uartcfg anw6410_uartcfgs[] __initdata = {
  73         [0] = {
  74                 .hwport      = 0,
  75                 .flags       = 0,
  76                 .ucon        = 0x3c5,
  77                 .ulcon       = 0x03,
  78                 .ufcon       = 0x51,
  79         },
  80         [1] = {
  81                 .hwport      = 1,
  82                 .flags       = 0,
  83                 .ucon        = 0x3c5,
  84                 .ulcon       = 0x03,
  85                 .ufcon       = 0x51,
  86         },
  87 };
  88
  89 /* framebuffer and LCD setup. */
  90 static void __init anw6410_lcd_mode_set(void)
  91 {
  92         u32 tmp;
  93
  94         /* set the LCD type */
  95         tmp = __raw_readl(S3C64XX_SPCON);
  96         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
  97         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
  98         __raw_writel(tmp, S3C64XX_SPCON);
  99
 100         /* remove the LCD bypass */
 101         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 102         tmp &= ~MIFPCON_LCD_BYPASS;
 103         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 104 }
 105
 106 /* GPF1 = LCD panel power
 107  * GPF4 = LCD backlight control
 108  */
 109 static void anw6410_lcd_power_set(struct plat_lcd_data *pd,
 110                                    unsigned int power)
 111 {
 112         if (power) {
 113                 anw6410_extdev_status |= (ANW6410_EN_LCD << 16);
 114                 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 115
 116                 gpio_direction_output(S3C64XX_GPF(1), 1);
 117                 gpio_direction_output(S3C64XX_GPF(4), 1);
 118         } else {
 119                 anw6410_extdev_status &= ~(ANW6410_EN_LCD << 16);
 120                 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 121
 122                 gpio_direction_output(S3C64XX_GPF(1), 0);
 123                 gpio_direction_output(S3C64XX_GPF(4), 0);
 124         }
 125 }
 126
 127 static struct plat_lcd_data anw6410_lcd_power_data = {
 128         .set_power      = anw6410_lcd_power_set,
 129 };
 130
 131 static struct platform_device anw6410_lcd_powerdev = {
 132         .name                   = "platform-lcd",
 133         .dev.parent             = &s3c_device_fb.dev,
 134         .dev.platform_data      = &anw6410_lcd_power_data,
 135 };
 136
 137 static struct s3c_fb_pd_win anw6410_fb_win0 = {
 138         .max_bpp        = 32,
 139         .default_bpp    = 16,
 140         .xres           = 800,
 141         .yres           = 480,
 142 };
 143
 144 static struct fb_videomode anw6410_lcd_timing = {
 145         .left_margin    = 8,
 146         .right_margin   = 13,
 147         .upper_margin   = 7,
 148         .lower_margin   = 5,
 149         .hsync_len      = 3,
 150         .vsync_len      = 1,
 151         .xres           = 800,
 152         .yres           = 480,
 153 };
 154
 155 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 156 static struct s3c_fb_platdata anw6410_lcd_pdata __initdata = {
 157         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 158         .vtiming        = &anw6410_lcd_timing,
 159         .win[0]         = &anw6410_fb_win0,
 160         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 161         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 162 };
 163
 164 /* DM9000AEP 10/100 ethernet controller */
 165 static void __init anw6410_dm9000_enable(void)
 166 {
 167         anw6410_extdev_status |= (ANW6410_EN_DM9000 << 16);
 168         __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 169 }
 170
 171 static struct resource anw6410_dm9000_resource[] = {
 172         [0] = DEFINE_RES_MEM(ANW6410_PA_DM9000, 4),
 173         [1] = DEFINE_RES_MEM(ANW6410_PA_DM9000 + 4, 501),
 174         [2] = DEFINE_RES_NAMED(IRQ_EINT(15), 1, NULL, IORESOURCE_IRQ \
 175                                         | IRQF_TRIGGER_HIGH),
 176 };
 177
 178 static struct dm9000_plat_data anw6410_dm9000_pdata = {
 179         .flags    = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 180         /* dev_addr can be set to provide hwaddr. */
 181 };
 182
 183 static struct platform_device anw6410_device_eth = {
 184         .name   = "dm9000",
 185         .id     = -1,
 186         .num_resources  = ARRAY_SIZE(anw6410_dm9000_resource),
 187         .resource       = anw6410_dm9000_resource,
 188         .dev    = {
 189                 .platform_data  = &anw6410_dm9000_pdata,
 190         },
 191 };
 192
 193 static struct map_desc anw6410_iodesc[] __initdata = {
 194         {
 195                 .virtual        = (unsigned long)ANW6410_VA_EXTDEV,
 196                 .pfn            = __phys_to_pfn(ANW6410_PA_EXTDEV),
 197                 .length         = SZ_64K,
 198                 .type           = MT_DEVICE,
 199         },
 200 };
 201
 202 static struct platform_device *anw6410_devices[] __initdata = {
 203         &s3c_device_fb,
 204         &anw6410_lcd_powerdev,
 205         &anw6410_device_eth,
 206 };
 207
 208 static void __init anw6410_map_io(void)
 209 {
 210         s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc));
 211         s3c64xx_set_xtal_freq(12000000);
 212         s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs));
 213         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 214
 215         anw6410_lcd_mode_set();
 216 }
 217
 218 static void __init anw6410_machine_init(void)
 219 {
 220         s3c_fb_set_platdata(&anw6410_lcd_pdata);
 221
 222         gpio_request(S3C64XX_GPF(1), "panel power");
 223         gpio_request(S3C64XX_GPF(4), "LCD backlight");
 224
 225         anw6410_dm9000_enable();
 226
 227         platform_add_devices(anw6410_devices, ARRAY_SIZE(anw6410_devices));
 228 }
 229
 230 MACHINE_START(ANW6410, "A&W6410")
 231         /* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
 232         .atag_offset    = 0x100,
 233
 234         .init_irq       = s3c6410_init_irq,
 235         .map_io         = anw6410_map_io,
 236         .init_machine   = anw6410_machine_init,
 237         .init_late      = s3c64xx_init_late,
 238         .init_time      = samsung_timer_init,
 239         .restart        = s3c64xx_restart,
 240 MACHINE_END