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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/hardware/iomd.h>
  29 #include <asm/io.h>
  30 #include <asm/irq.h>
  31 #include <asm/mach-types.h>
  32
  33
  34 #include <asm/arch/regs-serial.h>
  35 #include <asm/arch/regs-lcd.h>
  36
  37 #include <asm/arch/h1940.h>
  38 #include <asm/arch/h1940-latch.h>
  39 #include <asm/arch/fb.h>
  40
  41 #include "clock.h"
  42 #include "devs.h"
  43 #include "cpu.h"
  44 #include "pm.h"
  45
  46 static struct map_desc h1940_iodesc[] __initdata = {
  47         [0] = {
  48                 .virtual        = (unsigned long)H1940_LATCH,
  49                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
  50                 .length         = SZ_16K,
  51                 .type           = MT_DEVICE
  52         },
  53 };
  54
  55 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  56 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  57 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  58
  59 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
  60         [0] = {
  61                 .hwport      = 0,
  62                 .flags       = 0,
  63                 .ucon        = 0x3c5,
  64                 .ulcon       = 0x03,
  65                 .ufcon       = 0x51,
  66         },
  67         [1] = {
  68                 .hwport      = 1,
  69                 .flags       = 0,
  70                 .ucon        = 0x245,
  71                 .ulcon       = 0x03,
  72                 .ufcon       = 0x00,
  73         },
  74         /* IR port */
  75         [2] = {
  76                 .hwport      = 2,
  77                 .flags       = 0,
  78                 .uart_flags  = UPF_CONS_FLOW,
  79                 .ucon        = 0x3c5,
  80                 .ulcon       = 0x43,
  81                 .ufcon       = 0x51,
  82         }
  83 };
  84
  85 /* Board control latch control */
  86
  87 static unsigned int latch_state = H1940_LATCH_DEFAULT;
  88
  89 void h1940_latch_control(unsigned int clear, unsigned int set)
  90 {
  91         unsigned long flags;
  92
  93         local_irq_save(flags);
  94
  95         latch_state &= ~clear;
  96         latch_state |= set;
  97
  98         __raw_writel(latch_state, H1940_LATCH);
  99
 100         local_irq_restore(flags);
 101 }
 102
 103 EXPORT_SYMBOL_GPL(h1940_latch_control);
 104
 105
 106 /**
 107  * Set lcd on or off
 108  **/
 109 static struct s3c2410fb_mach_info h1940_lcdcfg __initdata = {
 110         .fixed_syncs=           1,
 111         .regs={
 112                 .lcdcon1=       S3C2410_LCDCON1_TFT16BPP | \
 113                                 S3C2410_LCDCON1_TFT | \
 114                                 S3C2410_LCDCON1_CLKVAL(0x0C),
 115
 116                 .lcdcon2=       S3C2410_LCDCON2_VBPD(7) | \
 117                                 S3C2410_LCDCON2_LINEVAL(319) | \
 118                                 S3C2410_LCDCON2_VFPD(6) | \
 119                                 S3C2410_LCDCON2_VSPW(0),
 120
 121                 .lcdcon3=       S3C2410_LCDCON3_HBPD(19) | \
 122                                 S3C2410_LCDCON3_HOZVAL(239) | \
 123                                 S3C2410_LCDCON3_HFPD(7),
 124
 125                 .lcdcon4=       S3C2410_LCDCON4_MVAL(0) | \
 126                                 S3C2410_LCDCON4_HSPW(3),
 127
 128                 .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
 129                                 S3C2410_LCDCON5_INVVLINE | \
 130                                 S3C2410_LCDCON5_HWSWP,
 131         },
 132         .lpcsel=        0x02,
 133         .gpccon=        0xaa940659,
 134         .gpccon_mask=   0xffffffff,
 135         .gpcup=         0x0000ffff,
 136         .gpcup_mask=    0xffffffff,
 137         .gpdcon=        0xaa84aaa0,
 138         .gpdcon_mask=   0xffffffff,
 139         .gpdup=         0x0000faff,
 140         .gpdup_mask=    0xffffffff,
 141
 142         .width=         240,
 143         .height=        320,
 144         .xres=          {240,240,240},
 145         .yres=          {320,320,320},
 146         .bpp=           {16,16,16},
 147 };
 148
 149 static struct platform_device *h1940_devices[] __initdata = {
 150         &s3c_device_usb,
 151         &s3c_device_lcd,
 152         &s3c_device_wdt,
 153         &s3c_device_i2c,
 154         &s3c_device_iis,
 155 };
 156
 157 static struct s3c24xx_board h1940_board __initdata = {
 158         .devices       = h1940_devices,
 159         .devices_count = ARRAY_SIZE(h1940_devices)
 160 };
 161
 162 static void __init h1940_map_io(void)
 163 {
 164         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 165         s3c24xx_init_clocks(0);
 166         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 167         s3c24xx_set_board(&h1940_board);
 168
 169         /* setup PM */
 170
 171         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 172         s3c2410_pm_init();
 173 }
 174
 175 static void __init h1940_init_irq(void)
 176 {
 177         s3c24xx_init_irq();
 178 }
 179
 180 static void __init h1940_init(void)
 181 {
 182         s3c24xx_fb_set_platdata(&h1940_lcdcfg);
 183 }
 184
 185 MACHINE_START(H1940, "IPAQ-H1940")
 186         /* Maintainer: Ben Dooks <ben@fluff.org> */
 187         .phys_io        = S3C2410_PA_UART,
 188         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 189         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 190         .map_io         = h1940_map_io,
 191         .init_irq       = h1940_init_irq,
 192         .init_machine   = h1940_init,
 193         .timer          = &s3c24xx_timer,
 194 MACHINE_END