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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/serial_core.h>
  21 #include <linux/platform_device.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/irq.h>
  26
  27 #include <asm/hardware.h>
  28 #include <asm/io.h>
  29 #include <asm/irq.h>
  30 #include <asm/mach-types.h>
  31
  32 #include <asm/arch/regs-serial.h>
  33 #include <asm/arch/regs-lcd.h>
  34 #include <asm/arch/regs-gpio.h>
  35 #include <asm/arch/regs-clock.h>
  36
  37 #include <asm/arch/h1940.h>
  38 #include <asm/arch/h1940-latch.h>
  39 #include <asm/arch/fb.h>
  40 #include <asm/arch/udc.h>
  41
  42 #include <asm/plat-s3c24xx/clock.h>
  43 #include <asm/plat-s3c24xx/devs.h>
  44 #include <asm/plat-s3c24xx/cpu.h>
  45 #include <asm/plat-s3c24xx/pm.h>
  46
  47 static struct map_desc h1940_iodesc[] __initdata = {
  48         [0] = {
  49                 .virtual        = (unsigned long)H1940_LATCH,
  50                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  51                 .length         = SZ_16K,
  52                 .type           = MT_DEVICE
  53         },
  54 };
  55
  56 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  57 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  58 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  59
  60 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  61         [0] = {
  62                 .hwport      = 0,
  63                 .flags       = 0,
  64                 .ucon        = 0x3c5,
  65                 .ulcon       = 0x03,
  66                 .ufcon       = 0x51,
  67         },
  68         [1] = {
  69                 .hwport      = 1,
  70                 .flags       = 0,
  71                 .ucon        = 0x245,
  72                 .ulcon       = 0x03,
  73                 .ufcon       = 0x00,
  74         },
  75         /* IR port */
  76         [2] = {
  77                 .hwport      = 2,
  78                 .flags       = 0,
  79                 .uart_flags  = UPF_CONS_FLOW,
  80                 .ucon        = 0x3c5,
  81                 .ulcon       = 0x43,
  82                 .ufcon       = 0x51,
  83         }
  84 };
  85
  86 /* Board control latch control */
  87
  88 static unsigned int latch_state = H1940_LATCH_DEFAULT;
  89
  90 void h1940_latch_control(unsigned int clear, unsigned int set)
  91 {
  92         unsigned long flags;
  93
  94         local_irq_save(flags);
  95
  96         latch_state &= ~clear;
  97         latch_state |= set;
  98
  99         __raw_writel(latch_state, H1940_LATCH);
 100
 101         local_irq_restore(flags);
 102 }
 103
 104 EXPORT_SYMBOL_GPL(h1940_latch_control);
 105
 106 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
 107 {
 108         printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
 109
 110         switch (cmd)
 111         {
 112                 case S3C2410_UDC_P_ENABLE :
 113                         h1940_latch_control(0, H1940_LATCH_USB_DP);
 114                         break;
 115                 case S3C2410_UDC_P_DISABLE :
 116                         h1940_latch_control(H1940_LATCH_USB_DP, 0);
 117                         break;
 118                 case S3C2410_UDC_P_RESET :
 119                         break;
 120                 default:
 121                         break;
 122         }
 123 }
 124
 125 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 126         .udc_command            = h1940_udc_pullup,
 127         .vbus_pin               = S3C2410_GPG5,
 128         .vbus_pin_inverted      = 1,
 129 };
 130
 131
 132 /**
 133  * Set lcd on or off
 134  **/
 135 static struct s3c2410fb_mach_info h1940_lcdcfg __initdata = {
 136         .fixed_syncs=           1,
 137         .regs={
 138                 .lcdcon1=       S3C2410_LCDCON1_TFT16BPP | \
 139                                 S3C2410_LCDCON1_TFT | \
 140                                 S3C2410_LCDCON1_CLKVAL(0x0C),
 141
 142                 .lcdcon2=       S3C2410_LCDCON2_VBPD(7) | \
 143                                 S3C2410_LCDCON2_LINEVAL(319) | \
 144                                 S3C2410_LCDCON2_VFPD(6) | \
 145                                 S3C2410_LCDCON2_VSPW(0),
 146
 147                 .lcdcon3=       S3C2410_LCDCON3_HBPD(19) | \
 148                                 S3C2410_LCDCON3_HOZVAL(239) | \
 149                                 S3C2410_LCDCON3_HFPD(7),
 150
 151                 .lcdcon4=       S3C2410_LCDCON4_MVAL(0) | \
 152                                 S3C2410_LCDCON4_HSPW(3),
 153
 154                 .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 155                                 S3C2410_LCDCON5_INVVLINE | \
 156                                 S3C2410_LCDCON5_HWSWP,
 157         },
 158         .lpcsel=        0x02,
 159         .gpccon=        0xaa940659,
 160         .gpccon_mask=   0xffffffff,
 161         .gpcup=         0x0000ffff,
 162         .gpcup_mask=    0xffffffff,
 163         .gpdcon=        0xaa84aaa0,
 164         .gpdcon_mask=   0xffffffff,
 165         .gpdup=         0x0000faff,
 166         .gpdup_mask=    0xffffffff,
 167
 168         .width=         240,
 169         .height=        320,
 170         .xres=          {240,240,240},
 171         .yres=          {320,320,320},
 172         .bpp=           {16,16,16},
 173 };
 174
 175 static struct platform_device s3c_device_leds = {
 176         .name             = "h1940-leds",
 177         .id               = -1,
 178 };
 179
 180 static struct platform_device *h1940_devices[] __initdata = {
 181         &s3c_device_usb,
 182         &s3c_device_lcd,
 183         &s3c_device_wdt,
 184         &s3c_device_i2c,
 185         &s3c_device_iis,
 186         &s3c_device_usbgadget,
 187         &s3c_device_leds,
 188 };
 189
 190 static void __init h1940_map_io(void)
 191 {
 192         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 193         s3c24xx_init_clocks(0);
 194         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 195
 196         /* setup PM */
 197
 198 #ifdef CONFIG_PM_H1940
 199         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 200 #endif
 201         s3c2410_pm_init();
 202 }
 203
 204 static void __init h1940_init_irq(void)
 205 {
 206         s3c24xx_init_irq();
 207 }
 208
 209 static void __init h1940_init(void)
 210 {
 211         u32 tmp;
 212
 213         s3c24xx_fb_set_platdata(&h1940_lcdcfg);
 214         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 215
 216         /* Turn off suspend on both USB ports, and switch the
 217          * selectable USB port to USB device mode. */
 218
 219         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 220                               S3C2410_MISCCR_USBSUSPND0 |
 221                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 222
 223         tmp = (
 224                  0x78 << S3C2410_PLLCON_MDIVSHIFT)
 225               | (0x02 << S3C2410_PLLCON_PDIVSHIFT)
 226               | (0x03 << S3C2410_PLLCON_SDIVSHIFT);
 227         writel(tmp, S3C2410_UPLLCON);
 228
 229         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
 230 }
 231
 232 MACHINE_START(H1940, "IPAQ-H1940")
 233         /* Maintainer: Ben Dooks <ben@fluff.org> */
 234         .phys_io        = S3C2410_PA_UART,
 235         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 236         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 237         .map_io         = h1940_map_io,
 238         .init_irq       = h1940_init_irq,
 239         .init_machine   = h1940_init,
 240         .timer          = &s3c24xx_timer,
 241 MACHINE_END