kernel/2.6.29.6-aldebaran-rt/arch/arm/mach-s3c2410/mach-h1940.c

   1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
   2  *
   3  * Copyright (c) 2003-2005 Simtec Electronics
   4  *   Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * http://www.handhelds.org/projects/h1940.html
   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/sysdev.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/io.h>
  24
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/irq.h>
  28
  29 #include <mach/hardware.h>
  30 #include <asm/irq.h>
  31 #include <asm/mach-types.h>
  32
  33 #include <plat/regs-serial.h>
  34 #include <mach/regs-lcd.h>
  35 #include <mach/regs-gpio.h>
  36 #include <mach/regs-clock.h>
  37
  38 #include <mach/h1940.h>
  39 #include <mach/h1940-latch.h>
  40 #include <mach/fb.h>
  41 #include <plat/udc.h>
  42 #include <plat/iic.h>
  43
  44 #include <plat/clock.h>
  45 #include <plat/devs.h>
  46 #include <plat/cpu.h>
  47 #include <plat/pll.h>
  48 #include <plat/pm.h>
  49
  50 static struct map_desc h1940_iodesc[] __initdata = {
  51         [0] = {
  52                 .virtual        = (unsigned long)H1940_LATCH,
  53                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  54                 .length         = SZ_16K,
  55                 .type           = MT_DEVICE
  56         },
  57 };
  58
  59 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  60 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  61 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  62
  63 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  64         [0] = {
  65                 .hwport      = 0,
  66                 .flags       = 0,
  67                 .ucon        = 0x3c5,
  68                 .ulcon       = 0x03,
  69                 .ufcon       = 0x51,
  70         },
  71         [1] = {
  72                 .hwport      = 1,
  73                 .flags       = 0,
  74                 .ucon        = 0x245,
  75                 .ulcon       = 0x03,
  76                 .ufcon       = 0x00,
  77         },
  78         /* IR port */
  79         [2] = {
  80                 .hwport      = 2,
  81                 .flags       = 0,
  82                 .uart_flags  = UPF_CONS_FLOW,
  83                 .ucon        = 0x3c5,
  84                 .ulcon       = 0x43,
  85                 .ufcon       = 0x51,
  86         }
  87 };
  88
  89 /* Board control latch control */
  90
  91 static unsigned int latch_state = H1940_LATCH_DEFAULT;
  92
  93 void h1940_latch_control(unsigned int clear, unsigned int set)
  94 {
  95         unsigned long flags;
  96
  97         local_irq_save(flags);
  98
  99         latch_state &= ~clear;
 100         latch_state |= set;
 101
 102         __raw_writel(latch_state, H1940_LATCH);
 103
 104         local_irq_restore(flags);
 105 }
 106
 107 EXPORT_SYMBOL_GPL(h1940_latch_control);
 108
 109 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 110 {
 111         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
 112
 113         switch (cmd)
 114         {
 115                 case S3C2410_UDC_P_ENABLE :
 116                         h1940_latch_control(0, H1940_LATCH_USB_DP);
 117                         break;
 118                 case S3C2410_UDC_P_DISABLE :
 119                         h1940_latch_control(H1940_LATCH_USB_DP, 0);
 120                         break;
 121                 case S3C2410_UDC_P_RESET :
 122                         break;
 123                 default:
 124                         break;
 125         }
 126 }
 127
 128 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 129         .udc_command            = h1940_udc_pullup,
 130         .vbus_pin               = S3C2410_GPG5,
 131         .vbus_pin_inverted      = 1,
 132 };
 133
 134
 135 /**
 136  * Set lcd on or off
 137  **/
 138 static struct s3c2410fb_display h1940_lcd __initdata = {
 139         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 140                         S3C2410_LCDCON5_INVVLINE | \
 141                         S3C2410_LCDCON5_HWSWP,
 142
 143         .type =         S3C2410_LCDCON1_TFT,
 144         .width =        240,
 145         .height =       320,
 146         .pixclock =     260000,
 147         .xres =         240,
 148         .yres =         320,
 149         .bpp =          16,
 150         .left_margin =  20,
 151         .right_margin = 8,
 152         .hsync_len =    4,
 153         .upper_margin = 8,
 154         .lower_margin = 7,
 155         .vsync_len =    1,
 156 };
 157
 158 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 159         .displays = &h1940_lcd,
 160         .num_displays = 1,
 161         .default_display = 0,
 162
 163         .lpcsel=        0x02,
 164         .gpccon=        0xaa940659,
 165         .gpccon_mask=   0xffffffff,
 166         .gpcup=         0x0000ffff,
 167         .gpcup_mask=    0xffffffff,
 168         .gpdcon=        0xaa84aaa0,
 169         .gpdcon_mask=   0xffffffff,
 170         .gpdup=         0x0000faff,
 171         .gpdup_mask=    0xffffffff,
 172 };
 173
 174 static struct platform_device s3c_device_leds = {
 175         .name             = "h1940-leds",
 176         .id               = -1,
 177 };
 178
 179 static struct platform_device s3c_device_bluetooth = {
 180         .name             = "h1940-bt",
 181         .id               = -1,
 182 };
 183
 184 static struct platform_device *h1940_devices[] __initdata = {
 185         &s3c_device_usb,
 186         &s3c_device_lcd,
 187         &s3c_device_wdt,
 188         &s3c_device_i2c0,
 189         &s3c_device_iis,
 190         &s3c_device_usbgadget,
 191         &s3c_device_leds,
 192         &s3c_device_bluetooth,
 193 };
 194
 195 static void __init h1940_map_io(void)
 196 {
 197         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 198         s3c24xx_init_clocks(0);
 199         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 200
 201         /* setup PM */
 202
 203 #ifdef CONFIG_PM_H1940
 204         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 205 #endif
 206         s3c2410_pm_init();
 207 }
 208
 209 static void __init h1940_init_irq(void)
 210 {
 211         s3c24xx_init_irq();
 212 }
 213
 214 static void __init h1940_init(void)
 215 {
 216         u32 tmp;
 217
 218         s3c24xx_fb_set_platdata(&h1940_fb_info);
 219         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 220         s3c_i2c0_set_platdata(NULL);
 221
 222         /* Turn off suspend on both USB ports, and switch the
 223          * selectable USB port to USB device mode. */
 224
 225         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 226                               S3C2410_MISCCR_USBSUSPND0 |
 227                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 228
 229         tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
 230               | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
 231               | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
 232         writel(tmp, S3C2410_UPLLCON);
 233
 234         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 235 }
 236
 237 MACHINE_START(H1940, "IPAQ-H1940")
 238         /* Maintainer: Ben Dooks <ben@fluff.org> */
 239         .phys_io        = S3C2410_PA_UART,
 240         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 241         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 242         .map_io         = h1940_map_io,
 243         .init_irq       = h1940_init_irq,
 244         .init_machine   = h1940_init,
 245         .timer          = &s3c24xx_timer,
 246 MACHINE_END