arch/arm/mach-sa1100/h3600.c

   1 /*
   2  * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers
   3  *
   4  * Copyright 2000,1 Compaq Computer Corporation.
   5  *
   6  * Use consistent with the GNU GPL is permitted,
   7  * provided that this copyright notice is
   8  * preserved in its entirety in all copies and derived works.
   9  *
  10  * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
  11  * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
  12  * FITNESS FOR ANY PARTICULAR PURPOSE.
  13  *
  14  * Author: Jamey Hicks.
  15  *
  16  * History:
  17  *
  18  * 2001-10-??   Andrew Christian   Added support for iPAQ H3800
  19  *                                 and abstracted EGPIO interface.
  20  *
  21  */
  22 #include <linux/module.h>
  23 #include <linux/init.h>
  24 #include <linux/kernel.h>
  25 #include <linux/tty.h>
  26 #include <linux/pm.h>
  27 #include <linux/device.h>
  28 #include <linux/mtd/mtd.h>
  29 #include <linux/mtd/partitions.h>
  30 #include <linux/serial_core.h>
  31 #include <linux/input.h>
  32 #include <linux/input_pda.h>
  33 #include <linux/platform_device.h>
  34
  35 #include <asm/irq.h>
  36 #include <asm/hardware.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/setup.h>
  39
  40 #include <asm/mach/irq.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/flash.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/serial_sa1100.h>
  45
  46 #include <asm/arch/h3600.h>
  47 #include <asm/hardware/gpio_keys.h>
  48
  49 #if defined (CONFIG_SA1100_H3600) || defined (CONFIG_SA1100_H3100)
  50 #include <asm/arch/h3600_gpio.h>
  51 #endif
  52
  53 #include "generic.h"
  54
  55 static struct mtd_partition h3xxx_partitions[] = {
  56         {
  57                 .name           = "H3XXX boot firmware",
  58                 .size           = 0x00040000,
  59                 .offset         = 0,
  60                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  61         }, {
  62 #ifdef CONFIG_MTD_2PARTS_IPAQ
  63                 .name           = "H3XXX root jffs2",
  64                 .size           = MTDPART_SIZ_FULL,
  65                 .offset         = 0x00040000,
  66 #else
  67                 .name           = "H3XXX kernel",
  68                 .size           = 0x00080000,
  69                 .offset         = 0x00040000,
  70         }, {
  71                 .name           = "H3XXX params",
  72                 .size           = 0x00040000,
  73                 .offset         = 0x000C0000,
  74         }, {
  75 #ifdef CONFIG_JFFS2_FS
  76                 .name           = "H3XXX root jffs2",
  77                 .size           = MTDPART_SIZ_FULL,
  78                 .offset         = 0x00100000,
  79 #else
  80                 .name           = "H3XXX initrd",
  81                 .size           = 0x00100000,
  82                 .offset         = 0x00100000,
  83         }, {
  84                 .name           = "H3XXX root cramfs",
  85                 .size           = 0x00300000,
  86                 .offset         = 0x00200000,
  87         }, {
  88                 .name           = "H3XXX usr cramfs",
  89                 .size           = 0x00800000,
  90                 .offset         = 0x00500000,
  91         }, {
  92                 .name           = "H3XXX usr local",
  93                 .size           = MTDPART_SIZ_FULL,
  94                 .offset         = 0x00d00000,
  95 #endif
  96 #endif
  97         }
  98 };
  99
 100
 101
 102 static struct flash_platform_data h3xxx_flash_data = {
 103         .map_name       = "cfi_probe",
 104         .set_vpp        = ipaqsa_mtd_set_vpp,
 105         .parts          = h3xxx_partitions,
 106         .nr_parts       = ARRAY_SIZE(h3xxx_partitions),
 107 };
 108
 109 static struct resource h3xxx_flash_resource = {
 110         .start          = SA1100_CS0_PHYS,
 111         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
 112         .flags          = IORESOURCE_MEM,
 113 };
 114
 115 static struct gpio_keys_button h3600_button_table[] = {
 116         { _KEY_POWER, GPIO_NR_H3600_NPOWER_BUTTON, 1 },
 117         { KEY_ENTER, GPIO_NR_H3600_ACTION_BUTTON, 1 },
 118 };
 119
 120 static struct gpio_keys_platform_data h3600_keys_data = {
 121         .buttons = h3600_button_table,
 122         .nbuttons = ARRAY_SIZE(h3600_button_table),
 123 };
 124
 125 static struct platform_device h3600_keys = {
 126         .name = "gpio-keys",
 127         .dev = {
 128                 .platform_data = &h3600_keys_data,
 129         },
 130 };
 131
 132 /************************* H3600 *************************/
 133
 134 #ifdef CONFIG_SA1100_H3600
 135
 136 #define H3600_EGPIO     (*(volatile unsigned int *)IPAQSA_EGPIO_VIRT)
 137 static unsigned int h3600_egpio = EGPIO_H3600_RS232_ON;
 138
 139 static void h3600_control_egpio(enum ipaq_egpio_type x, int setp)
 140 {
 141         unsigned int egpio = 0;
 142         unsigned long flags;
 143
 144         switch (x) {
 145         case IPAQ_EGPIO_LCD_POWER:
 146                 egpio |= EGPIO_H3600_LCD_ON |
 147                          EGPIO_H3600_LCD_5V_ON |
 148                          EGPIO_H3600_LVDD_ON;
 149                 break;
 150         case IPAQ_EGPIO_LCD_ENABLE:
 151                 egpio |= EGPIO_H3600_LCD_PCI;
 152                 break;
 153         case IPAQ_EGPIO_CODEC_NRESET:
 154                 egpio |= EGPIO_H3600_CODEC_NRESET;
 155                 break;
 156         case IPAQ_EGPIO_AUDIO_ON:
 157                 egpio |= EGPIO_H3600_AUD_AMP_ON |
 158                          EGPIO_H3600_AUD_PWR_ON;
 159                 break;
 160         case IPAQ_EGPIO_QMUTE:
 161                 egpio |= EGPIO_H3600_QMUTE;
 162                 break;
 163         case IPAQ_EGPIO_OPT_NVRAM_ON:
 164                 egpio |= EGPIO_H3600_OPT_NVRAM_ON;
 165                 break;
 166         case IPAQ_EGPIO_OPT_ON:
 167                 egpio |= EGPIO_H3600_OPT_ON;
 168                 break;
 169         case IPAQ_EGPIO_CARD_RESET:
 170                 egpio |= EGPIO_H3600_CARD_RESET;
 171                 break;
 172         case IPAQ_EGPIO_OPT_RESET:
 173                 egpio |= EGPIO_H3600_OPT_RESET;
 174                 break;
 175         case IPAQ_EGPIO_IR_ON:
 176                 egpio |= EGPIO_H3600_IR_ON;
 177                 break;
 178         case IPAQ_EGPIO_IR_FSEL:
 179                 egpio |= EGPIO_H3600_IR_FSEL;
 180                 break;
 181         case IPAQ_EGPIO_RS232_ON:
 182                 egpio |= EGPIO_H3600_RS232_ON;
 183                 break;
 184         case IPAQ_EGPIO_VPP_ON:
 185                 egpio |= EGPIO_H3600_VPP_ON;
 186                 break;
 187
 188         /*
 189          * unhandled EGPIOs
 190          */
 191         case IPAQ_EGPIO_PCMCIA_CD0_N:
 192         case IPAQ_EGPIO_PCMCIA_CD1_N:
 193         case IPAQ_EGPIO_PCMCIA_IRQ0:
 194         case IPAQ_EGPIO_PCMCIA_IRQ1:
 195         case IPAQ_EGPIO_BLUETOOTH_ON:
 196         default:
 197                 break;
 198         }
 199
 200         if (egpio) {
 201                 local_irq_save(flags);
 202                 if (setp)
 203                         h3600_egpio |= egpio;
 204                 else
 205                         h3600_egpio &= ~egpio;
 206                 H3600_EGPIO = h3600_egpio;
 207                 local_irq_restore(flags);
 208         }
 209 }
 210
 211
 212 static struct ipaq_model_ops h3600_model_ops __initdata = {
 213         .generic_name   = "3600",
 214         .control        = h3600_control_egpio,
 215 };
 216
 217 static void __init h3600_map_io(void)
 218 {
 219         ipaqsa_map_io();
 220
 221         /* Initialize h3600-specific values here */
 222
 223         GPCR = 0x0fffffff;       /* All outputs are set low by default */
 224         GPDR = GPIO_H3600_COM_RTS  | GPIO_H3600_L3_CLOCK |
 225                GPIO_H3600_L3_MODE  | GPIO_H3600_L3_DATA  |
 226                GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 |
 227                GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 |
 228                GPIO_LDD11 | GPIO_LDD10 | GPIO_LDD9  | GPIO_LDD8;
 229
 230         H3600_EGPIO = h3600_egpio;         /* Maintains across sleep? */
 231         ipaq_model_ops = h3600_model_ops;
 232 }
 233
 234
 235 /*--- list of devices ---*/
 236
 237 struct platform_device h3600micro_device = {
 238         .name           = "h3600-micro",
 239         .id             = -1,
 240 };
 241 EXPORT_SYMBOL(h3600micro_device);
 242
 243 static struct platform_device h3600lcd_device = {
 244         .name           = "h3600-lcd",
 245 /*      .dev            = {                      */
 246 /*              .parent  = &sa11x0fb_device.dev, */
 247 /*      },                                       */
 248         .id             = -1,
 249 };
 250
 251 static struct platform_device *devices[] __initdata = {
 252         &h3600micro_device,
 253         &h3600lcd_device,
 254         &h3600_keys,
 255 };
 256
 257
 258 static void h3600_mach_init(void)
 259 {
 260         ipaqsa_mach_init();
 261         sa11x0_set_flash_data(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
 262         platform_add_devices(devices, ARRAY_SIZE(devices));
 263 }
 264
 265 MACHINE_START(H3600, "Compaq iPAQ H3600")
 266         .phys_io        = 0x80000000,
 267         .io_pg_offst    = ( io_p2v(0x80000000) >> 18) & 0xfffc,
 268         .boot_params    = 0xc0000100,
 269         .map_io         = h3600_map_io,
 270         .init_irq       = sa1100_init_irq,
 271         .timer          = &sa1100_timer,
 272         .init_machine   = h3600_mach_init,
 273 MACHINE_END
 274
 275 #endif /* CONFIG_SA1100_H3600 */
 276
 277