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   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
  43 #include <plat/clock.h>
  44 #include <plat/devs.h>
  45 #include <plat/cpu.h>
  46 #include <plat/pll.h>
  47 #include <plat/pm.h>
  48
  49 static struct map_desc h1940_iodesc[] __initdata = {
  50         [0] = {
  51                 .virtual        = (unsigned long)H1940_LATCH,
  52                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  53                 .length         = SZ_16K,
  54                 .type           = MT_DEVICE
  55         },
  56 };
  57
  58 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  59 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  60 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  61
  62 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  63         [0] = {
  64                 .hwport      = 0,
  65                 .flags       = 0,
  66                 .ucon        = 0x3c5,
  67                 .ulcon       = 0x03,
  68                 .ufcon       = 0x51,
  69         },
  70         [1] = {
  71                 .hwport      = 1,
  72                 .flags       = 0,
  73                 .ucon        = 0x245,
  74                 .ulcon       = 0x03,
  75                 .ufcon       = 0x00,
  76         },
  77         /* IR port */
  78         [2] = {
  79                 .hwport      = 2,
  80                 .flags       = 0,
  81                 .uart_flags  = UPF_CONS_FLOW,
  82                 .ucon        = 0x3c5,
  83                 .ulcon       = 0x43,
  84                 .ufcon       = 0x51,
  85         }
  86 };
  87
  88 /* Board control latch control */
  89
  90 static unsigned int latch_state = H1940_LATCH_DEFAULT;
  91
  92 void h1940_latch_control(unsigned int clear, unsigned int set)
  93 {
  94         unsigned long flags;
  95
  96         local_irq_save(flags);
  97
  98         latch_state &= ~clear;
  99         latch_state |= set;
 100
 101         __raw_writel(latch_state, H1940_LATCH);
 102
 103         local_irq_restore(flags);
 104 }
 105
 106 EXPORT_SYMBOL_GPL(h1940_latch_control);
 107
 108 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 109 {
 110         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
 111
 112         switch (cmd)
 113         {
 114                 case S3C2410_UDC_P_ENABLE :
 115                         h1940_latch_control(0, H1940_LATCH_USB_DP);
 116                         break;
 117                 case S3C2410_UDC_P_DISABLE :
 118                         h1940_latch_control(H1940_LATCH_USB_DP, 0);
 119                         break;
 120                 case S3C2410_UDC_P_RESET :
 121                         break;
 122                 default:
 123                         break;
 124         }
 125 }
 126
 127 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 128         .udc_command            = h1940_udc_pullup,
 129         .vbus_pin               = S3C2410_GPG5,
 130         .vbus_pin_inverted      = 1,
 131 };
 132
 133
 134 /**
 135  * Set lcd on or off
 136  **/
 137 static struct s3c2410fb_display h1940_lcd __initdata = {
 138         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 139                         S3C2410_LCDCON5_INVVLINE | \
 140                         S3C2410_LCDCON5_HWSWP,
 141
 142         .type =         S3C2410_LCDCON1_TFT,
 143         .width =        240,
 144         .height =       320,
 145         .pixclock =     260000,
 146         .xres =         240,
 147         .yres =         320,
 148         .bpp =          16,
 149         .left_margin =  20,
 150         .right_margin = 8,
 151         .hsync_len =    4,
 152         .upper_margin = 8,
 153         .lower_margin = 7,
 154         .vsync_len =    1,
 155 };
 156
 157 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 158         .displays = &h1940_lcd,
 159         .num_displays = 1,
 160         .default_display = 0,
 161
 162         .lpcsel=        0x02,
 163         .gpccon=        0xaa940659,
 164         .gpccon_mask=   0xffffffff,
 165         .gpcup=         0x0000ffff,
 166         .gpcup_mask=    0xffffffff,
 167         .gpdcon=        0xaa84aaa0,
 168         .gpdcon_mask=   0xffffffff,
 169         .gpdup=         0x0000faff,
 170         .gpdup_mask=    0xffffffff,
 171 };
 172
 173 static struct platform_device s3c_device_leds = {
 174         .name             = "h1940-leds",
 175         .id               = -1,
 176 };
 177
 178 static struct platform_device s3c_device_bluetooth = {
 179         .name             = "h1940-bt",
 180         .id               = -1,
 181 };
 182
 183 static struct platform_device *h1940_devices[] __initdata = {
 184         &s3c_device_usb,
 185         &s3c_device_lcd,
 186         &s3c_device_wdt,
 187         &s3c_device_i2c,
 188         &s3c_device_iis,
 189         &s3c_device_usbgadget,
 190         &s3c_device_leds,
 191         &s3c_device_bluetooth,
 192 };
 193
 194 static void __init h1940_map_io(void)
 195 {
 196         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 197         s3c24xx_init_clocks(0);
 198         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 199
 200         /* setup PM */
 201
 202 #ifdef CONFIG_PM_H1940
 203         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 204 #endif
 205         s3c2410_pm_init();
 206 }
 207
 208 static void __init h1940_init_irq(void)
 209 {
 210         s3c24xx_init_irq();
 211 }
 212
 213 static void __init h1940_init(void)
 214 {
 215         u32 tmp;
 216
 217         s3c24xx_fb_set_platdata(&h1940_fb_info);
 218         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 219
 220         /* Turn off suspend on both USB ports, and switch the
 221          * selectable USB port to USB device mode. */
 222
 223         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 224                               S3C2410_MISCCR_USBSUSPND0 |
 225                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 226
 227         tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
 228               | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
 229               | (0x03 << S3C24XX_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