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/hardware/vic.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36 #include <asm/mach/irq.h>
  37
  38 #include <mach/hardware.h>
  39 #include <mach/map.h>
  40
  41 #include <asm/irq.h>
  42 #include <asm/mach-types.h>
  43
  44 #include <plat/regs-serial.h>
  45 #include <plat/iic.h>
  46 #include <plat/fb.h>
  47 #include <plat/regs-fb-v4.h>
  48
  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 #include "common.h"
  56
  57 /* DM9000 */
  58 #define ANW6410_PA_DM9000       (0x18000000)
  59
  60 /* A hardware buffer to control external devices is mapped at 0x30000000.
  61  * It can not be read. So current status must be kept in anw6410_extdev_status.
  62  */
  63 #define ANW6410_VA_EXTDEV       S3C_ADDR(0x02000000)
  64 #define ANW6410_PA_EXTDEV       (0x30000000)
  65
  66 #define ANW6410_EN_DM9000       (1<<11)
  67 #define ANW6410_EN_LCD          (1<<14)
  68
  69 static __u32 anw6410_extdev_status;
  70
  71 static struct s3c2410_uartcfg anw6410_uartcfgs[] __initdata = {
  72         [0] = {
  73                 .hwport      = 0,
  74                 .flags       = 0,
  75                 .ucon        = 0x3c5,
  76                 .ulcon       = 0x03,
  77                 .ufcon       = 0x51,
  78         },
  79         [1] = {
  80                 .hwport      = 1,
  81                 .flags       = 0,
  82                 .ucon        = 0x3c5,
  83                 .ulcon       = 0x03,
  84                 .ufcon       = 0x51,
  85         },
  86 };
  87
  88 /* framebuffer and LCD setup. */
  89 static void __init anw6410_lcd_mode_set(void)
  90 {
  91         u32 tmp;
  92
  93         /* set the LCD type */
  94         tmp = __raw_readl(S3C64XX_SPCON);
  95         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
  96         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
  97         __raw_writel(tmp, S3C64XX_SPCON);
  98
  99         /* remove the LCD bypass */
 100         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
 101         tmp &= ~MIFPCON_LCD_BYPASS;
 102         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
 103 }
 104
 105 /* GPF1 = LCD panel power
 106  * GPF4 = LCD backlight control
 107  */
 108 static void anw6410_lcd_power_set(struct plat_lcd_data *pd,
 109                                    unsigned int power)
 110 {
 111         if (power) {
 112                 anw6410_extdev_status |= (ANW6410_EN_LCD << 16);
 113                 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 114
 115                 gpio_direction_output(S3C64XX_GPF(1), 1);
 116                 gpio_direction_output(S3C64XX_GPF(4), 1);
 117         } else {
 118                 anw6410_extdev_status &= ~(ANW6410_EN_LCD << 16);
 119                 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 120
 121                 gpio_direction_output(S3C64XX_GPF(1), 0);
 122                 gpio_direction_output(S3C64XX_GPF(4), 0);
 123         }
 124 }
 125
 126 static struct plat_lcd_data anw6410_lcd_power_data = {
 127         .set_power      = anw6410_lcd_power_set,
 128 };
 129
 130 static struct platform_device anw6410_lcd_powerdev = {
 131         .name                   = "platform-lcd",
 132         .dev.parent             = &s3c_device_fb.dev,
 133         .dev.platform_data      = &anw6410_lcd_power_data,
 134 };
 135
 136 static struct s3c_fb_pd_win anw6410_fb_win0 = {
 137         /* this is to ensure we use win0 */
 138         .win_mode       = {
 139                 .left_margin    = 8,
 140                 .right_margin   = 13,
 141                 .upper_margin   = 7,
 142                 .lower_margin   = 5,
 143                 .hsync_len      = 3,
 144                 .vsync_len      = 1,
 145                 .xres           = 800,
 146                 .yres           = 480,
 147         },
 148         .max_bpp        = 32,
 149         .default_bpp    = 16,
 150 };
 151
 152 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
 153 static struct s3c_fb_platdata anw6410_lcd_pdata __initdata = {
 154         .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
 155         .win[0]         = &anw6410_fb_win0,
 156         .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
 157         .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
 158 };
 159
 160 /* DM9000AEP 10/100 ethernet controller */
 161 static void __init anw6410_dm9000_enable(void)
 162 {
 163         anw6410_extdev_status |= (ANW6410_EN_DM9000 << 16);
 164         __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
 165 }
 166
 167 static struct resource anw6410_dm9000_resource[] = {
 168         [0] = {
 169                 .start = ANW6410_PA_DM9000,
 170                 .end   = ANW6410_PA_DM9000 + 3,
 171                 .flags = IORESOURCE_MEM,
 172         },
 173         [1] = {
 174                 .start = ANW6410_PA_DM9000 + 4,
 175                 .end   = ANW6410_PA_DM9000 + 4 + 500,
 176                 .flags = IORESOURCE_MEM,
 177         },
 178         [2] = {
 179                 .start = IRQ_EINT(15),
 180                 .end   = IRQ_EINT(15),
 181                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
 182         },
 183 };
 184
 185 static struct dm9000_plat_data anw6410_dm9000_pdata = {
 186         .flags    = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 187         /* dev_addr can be set to provide hwaddr. */
 188 };
 189
 190 static struct platform_device anw6410_device_eth = {
 191         .name   = "dm9000",
 192         .id     = -1,
 193         .num_resources  = ARRAY_SIZE(anw6410_dm9000_resource),
 194         .resource       = anw6410_dm9000_resource,
 195         .dev    = {
 196                 .platform_data  = &anw6410_dm9000_pdata,
 197         },
 198 };
 199
 200 static struct map_desc anw6410_iodesc[] __initdata = {
 201         {
 202                 .virtual        = (unsigned long)ANW6410_VA_EXTDEV,
 203                 .pfn            = __phys_to_pfn(ANW6410_PA_EXTDEV),
 204                 .length         = SZ_64K,
 205                 .type           = MT_DEVICE,
 206         },
 207 };
 208
 209 static struct platform_device *anw6410_devices[] __initdata = {
 210         &s3c_device_fb,
 211         &anw6410_lcd_powerdev,
 212         &anw6410_device_eth,
 213 };
 214
 215 static void __init anw6410_map_io(void)
 216 {
 217         s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc));
 218         s3c24xx_init_clocks(12000000);
 219         s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs));
 220
 221         anw6410_lcd_mode_set();
 222 }
 223
 224 static void __init anw6410_machine_init(void)
 225 {
 226         s3c_fb_set_platdata(&anw6410_lcd_pdata);
 227
 228         gpio_request(S3C64XX_GPF(1), "panel power");
 229         gpio_request(S3C64XX_GPF(4), "LCD backlight");
 230
 231         anw6410_dm9000_enable();
 232
 233         platform_add_devices(anw6410_devices, ARRAY_SIZE(anw6410_devices));
 234 }
 235
 236 MACHINE_START(ANW6410, "A&W6410")
 237         /* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
 238         .atag_offset    = 0x100,
 239
 240         .init_irq       = s3c6410_init_irq,
 241         .handle_irq     = vic_handle_irq,
 242         .map_io         = anw6410_map_io,
 243         .init_machine   = anw6410_machine_init,
 244         .timer          = &s3c24xx_timer,
 245         .restart        = s3c64xx_restart,
 246 MACHINE_END