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
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/mach/irq.h>
  27
  28 #include <mach/hardware.h>
  29 #include <asm/io.h>
  30 #include <asm/irq.h>
  31 #include <asm/mach-types.h>
  32
  33 #include <asm/plat-s3c/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 <asm/plat-s3c24xx/udc.h>
  42
  43 #include <asm/plat-s3c24xx/clock.h>
  44 #include <asm/plat-s3c24xx/devs.h>
  45 #include <asm/plat-s3c24xx/cpu.h>
  46 #include <asm/plat-s3c24xx/pm.h>
  47
  48 static struct map_desc h1940_iodesc[] __initdata = {
  49         [0] = {
  50                 .virtual        = (unsigned long)H1940_LATCH,
  51                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  52                 .length         = SZ_16K,
  53                 .type           = MT_DEVICE
  54         },
  55 };
  56
  57 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  58 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  59 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  60
  61 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  62         [0] = {
  63                 .hwport      = 0,
  64                 .flags       = 0,
  65                 .ucon        = 0x3c5,
  66                 .ulcon       = 0x03,
  67                 .ufcon       = 0x51,
  68         },
  69         [1] = {
  70                 .hwport      = 1,
  71                 .flags       = 0,
  72                 .ucon        = 0x245,
  73                 .ulcon       = 0x03,
  74                 .ufcon       = 0x00,
  75         },
  76         /* IR port */
  77         [2] = {
  78                 .hwport      = 2,
  79                 .flags       = 0,
  80                 .uart_flags  = UPF_CONS_FLOW,
  81                 .ucon        = 0x3c5,
  82                 .ulcon       = 0x43,
  83                 .ufcon       = 0x51,
  84         }
  85 };
  86
  87 /* Board control latch control */
  88
  89 static unsigned int latch_state = H1940_LATCH_DEFAULT;
  90
  91 void h1940_latch_control(unsigned int clear, unsigned int set)
  92 {
  93         unsigned long flags;
  94
  95         local_irq_save(flags);
  96
  97         latch_state &= ~clear;
  98         latch_state |= set;
  99
 100         __raw_writel(latch_state, H1940_LATCH);
 101
 102         local_irq_restore(flags);
 103 }
 104
 105 EXPORT_SYMBOL_GPL(h1940_latch_control);
 106
 107 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 108 {
 109         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
 110
 111         switch (cmd)
 112         {
 113                 case S3C2410_UDC_P_ENABLE :
 114                         h1940_latch_control(0, H1940_LATCH_USB_DP);
 115                         break;
 116                 case S3C2410_UDC_P_DISABLE :
 117                         h1940_latch_control(H1940_LATCH_USB_DP, 0);
 118                         break;
 119                 case S3C2410_UDC_P_RESET :
 120                         break;
 121                 default:
 122                         break;
 123         }
 124 }
 125
 126 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 127         .udc_command            = h1940_udc_pullup,
 128         .vbus_pin               = S3C2410_GPG5,
 129         .vbus_pin_inverted      = 1,
 130 };
 131
 132
 133 /**
 134  * Set lcd on or off
 135  **/
 136 static struct s3c2410fb_display h1940_lcd __initdata = {
 137         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 138                         S3C2410_LCDCON5_INVVLINE | \
 139                         S3C2410_LCDCON5_HWSWP,
 140
 141         .type =         S3C2410_LCDCON1_TFT,
 142         .width =        240,
 143         .height =       320,
 144         .pixclock =     260000,
 145         .xres =         240,
 146         .yres =         320,
 147         .bpp =          16,
 148         .left_margin =  20,
 149         .right_margin = 8,
 150         .hsync_len =    4,
 151         .upper_margin = 8,
 152         .lower_margin = 7,
 153         .vsync_len =    1,
 154 };
 155
 156 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 157         .displays = &h1940_lcd,
 158         .num_displays = 1,
 159         .default_display = 0,
 160
 161         .lpcsel=        0x02,
 162         .gpccon=        0xaa940659,
 163         .gpccon_mask=   0xffffffff,
 164         .gpcup=         0x0000ffff,
 165         .gpcup_mask=    0xffffffff,
 166         .gpdcon=        0xaa84aaa0,
 167         .gpdcon_mask=   0xffffffff,
 168         .gpdup=         0x0000faff,
 169         .gpdup_mask=    0xffffffff,
 170 };
 171
 172 static struct platform_device s3c_device_leds = {
 173         .name             = "h1940-leds",
 174         .id               = -1,
 175 };
 176
 177 static struct platform_device s3c_device_bluetooth = {
 178         .name             = "h1940-bt",
 179         .id               = -1,
 180 };
 181
 182 static struct platform_device *h1940_devices[] __initdata = {
 183         &s3c_device_usb,
 184         &s3c_device_lcd,
 185         &s3c_device_wdt,
 186         &s3c_device_i2c,
 187         &s3c_device_iis,
 188         &s3c_device_usbgadget,
 189         &s3c_device_leds,
 190         &s3c_device_bluetooth,
 191 };
 192
 193 static void __init h1940_map_io(void)
 194 {
 195         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 196         s3c24xx_init_clocks(0);
 197         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 198
 199         /* setup PM */
 200
 201 #ifdef CONFIG_PM_H1940
 202         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 203 #endif
 204         s3c2410_pm_init();
 205 }
 206
 207 static void __init h1940_init_irq(void)
 208 {
 209         s3c24xx_init_irq();
 210 }
 211
 212 static void __init h1940_init(void)
 213 {
 214         u32 tmp;
 215
 216         s3c24xx_fb_set_platdata(&h1940_fb_info);
 217         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 218
 219         /* Turn off suspend on both USB ports, and switch the
 220          * selectable USB port to USB device mode. */
 221
 222         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 223                               S3C2410_MISCCR_USBSUSPND0 |
 224                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 225
 226         tmp = (
 227                  0x78 << S3C2410_PLLCON_MDIVSHIFT)
 228               | (0x02 << S3C2410_PLLCON_PDIVSHIFT)
 229               | (0x03 << S3C2410_PLLCON_SDIVSHIFT);
 230         writel(tmp, S3C2410_UPLLCON);
 231
 232         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 233 }
 234
 235 MACHINE_START(H1940, "IPAQ-H1940")
 236         /* Maintainer: Ben Dooks <ben@fluff.org> */
 237         .phys_io        = S3C2410_PA_UART,
 238         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 239         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 240         .map_io         = h1940_map_io,
 241         .init_irq       = h1940_init_irq,
 242         .init_machine   = h1940_init,
 243         .timer          = &s3c24xx_timer,
 244 MACHINE_END