arch/arm/plat-ipaq/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/config.h>
  23 #include <linux/module.h>
  24 #include <linux/init.h>
  25 #include <linux/kernel.h>
  26 #include <linux/tty.h>
  27 #include <linux/pm.h>
  28 #include <linux/device.h>
  29 #include <linux/mtd/mtd.h>
  30 #include <linux/mtd/partitions.h>
  31 #include <linux/serial_core.h>
  32
  33 #include <asm/irq.h>
  34 #include <asm/hardware.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/setup.h>
  37
  38 #include <asm/mach/irq.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/flash.h>
  41 #include <asm/mach/map.h>
  42 #include <asm/mach/serial_sa1100.h>
  43
  44 #include <asm/arch/h3600.h>
  45
  46 #if defined (CONFIG_SA1100_H3600) || defined (CONFIG_SA1100_H3100)
  47 #include <asm/arch/h3600_gpio.h>
  48 #endif
  49
  50 #include "../mach-sa1100/generic.h"
  51
  52 static struct mtd_partition h3xxx_partitions[] = {
  53         {
  54                 .name           = "H3XXX boot firmware",
  55                 .size           = 0x00040000,
  56                 .offset         = 0,
  57                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
  58         }, {
  59 #ifdef CONFIG_MTD_2PARTS_IPAQ
  60                 .name           = "H3XXX root jffs2",
  61                 .size           = MTDPART_SIZ_FULL,
  62                 .offset         = 0x00040000,
  63 #else
  64                 .name           = "H3XXX kernel",
  65                 .size           = 0x00080000,
  66                 .offset         = 0x00040000,
  67         }, {
  68                 .name           = "H3XXX params",
  69                 .size           = 0x00040000,
  70                 .offset         = 0x000C0000,
  71         }, {
  72 #ifdef CONFIG_JFFS2_FS
  73                 .name           = "H3XXX root jffs2",
  74                 .size           = MTDPART_SIZ_FULL,
  75                 .offset         = 0x00100000,
  76 #else
  77                 .name           = "H3XXX initrd",
  78                 .size           = 0x00100000,
  79                 .offset         = 0x00100000,
  80         }, {
  81                 .name           = "H3XXX root cramfs",
  82                 .size           = 0x00300000,
  83                 .offset         = 0x00200000,
  84         }, {
  85                 .name           = "H3XXX usr cramfs",
  86                 .size           = 0x00800000,
  87                 .offset         = 0x00500000,
  88         }, {
  89                 .name           = "H3XXX usr local",
  90                 .size           = MTDPART_SIZ_FULL,
  91                 .offset         = 0x00d00000,
  92 #endif
  93 #endif
  94         }
  95 };
  96
  97
  98
  99 static struct flash_platform_data h3xxx_flash_data = {
 100         .map_name       = "cfi_probe",
 101         .set_vpp        = ipaqsa_mtd_set_vpp,
 102         .parts          = h3xxx_partitions,
 103         .nr_parts       = ARRAY_SIZE(h3xxx_partitions),
 104 };
 105
 106 static struct resource h3xxx_flash_resource = {
 107         .start          = SA1100_CS0_PHYS,
 108         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
 109         .flags          = IORESOURCE_MEM,
 110 };
 111
 112
 113
 114 /*
 115  * helper for sa1100fb
 116  */
 117 static void h3xxx_lcd_power(int enable)
 118 {
 119         assign_ipaqsa_egpio(IPAQ_EGPIO_LCD_POWER, enable);
 120 }
 121
 122
 123
 124
 125 /************************* H3600 *************************/
 126
 127 #ifdef CONFIG_SA1100_H3600
 128
 129 #define H3600_EGPIO     (*(volatile unsigned int *)IPAQSA_EGPIO_VIRT)
 130 static unsigned int h3600_egpio = EGPIO_H3600_RS232_ON;
 131
 132 static void h3600_control_egpio(enum ipaq_egpio_type x, int setp)
 133 {
 134         unsigned int egpio = 0;
 135         unsigned long flags;
 136
 137         switch (x) {
 138         case IPAQ_EGPIO_LCD_POWER:
 139                 egpio |= EGPIO_H3600_LCD_ON |
 140                          EGPIO_H3600_LCD_PCI |
 141                          EGPIO_H3600_LCD_5V_ON |
 142                          EGPIO_H3600_LVDD_ON;
 143                 break;
 144         case IPAQ_EGPIO_LCD_ENABLE:
 145                 break;
 146         case IPAQ_EGPIO_CODEC_NRESET:
 147                 egpio |= EGPIO_H3600_CODEC_NRESET;
 148                 break;
 149         case IPAQ_EGPIO_AUDIO_ON:
 150                 egpio |= EGPIO_H3600_AUD_AMP_ON |
 151                          EGPIO_H3600_AUD_PWR_ON;
 152                 break;
 153         case IPAQ_EGPIO_QMUTE:
 154                 egpio |= EGPIO_H3600_QMUTE;
 155                 break;
 156         case IPAQ_EGPIO_OPT_NVRAM_ON:
 157                 egpio |= EGPIO_H3600_OPT_NVRAM_ON;
 158                 break;
 159         case IPAQ_EGPIO_OPT_ON:
 160                 egpio |= EGPIO_H3600_OPT_ON;
 161                 break;
 162         case IPAQ_EGPIO_CARD_RESET:
 163                 egpio |= EGPIO_H3600_CARD_RESET;
 164                 break;
 165         case IPAQ_EGPIO_OPT_RESET:
 166                 egpio |= EGPIO_H3600_OPT_RESET;
 167                 break;
 168         case IPAQ_EGPIO_IR_ON:
 169                 egpio |= EGPIO_H3600_IR_ON;
 170                 break;
 171         case IPAQ_EGPIO_IR_FSEL:
 172                 egpio |= EGPIO_H3600_IR_FSEL;
 173                 break;
 174         case IPAQ_EGPIO_RS232_ON:
 175                 egpio |= EGPIO_H3600_RS232_ON;
 176                 break;
 177         case IPAQ_EGPIO_VPP_ON:
 178                 egpio |= EGPIO_H3600_VPP_ON;
 179                 break;
 180
 181         /*
 182          * unhandled EGPIOs
 183          */
 184         case IPAQ_EGPIO_PCMCIA_CD0_N:
 185         case IPAQ_EGPIO_PCMCIA_CD1_N:
 186         case IPAQ_EGPIO_PCMCIA_IRQ0:
 187         case IPAQ_EGPIO_PCMCIA_IRQ1:
 188         case IPAQ_EGPIO_BLUETOOTH_ON:
 189         default:
 190                 break;
 191         }
 192
 193         if (egpio) {
 194                 local_irq_save(flags);
 195                 if (setp)
 196                         h3600_egpio |= egpio;
 197                 else
 198                         h3600_egpio &= ~egpio;
 199                 H3600_EGPIO = h3600_egpio;
 200                 local_irq_restore(flags);
 201         }
 202 }
 203
 204
 205 static struct ipaq_model_ops h3600_model_ops __initdata = {
 206         .generic_name   = "3600",
 207         .control        = h3600_control_egpio,
 208 };
 209
 210 static void __init h3600_map_io(void)
 211 {
 212         ipaqsa_map_io();
 213         sa1100fb_lcd_power = h3xxx_lcd_power;
 214
 215         /* Initialize h3600-specific values here */
 216
 217         GPCR = 0x0fffffff;       /* All outputs are set low by default */
 218         GPDR = GPIO_H3600_COM_RTS  | GPIO_H3600_L3_CLOCK |
 219                GPIO_H3600_L3_MODE  | GPIO_H3600_L3_DATA  |
 220                GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 |
 221                GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 |
 222                GPIO_LDD11 | GPIO_LDD10 | GPIO_LDD9  | GPIO_LDD8;
 223
 224         H3600_EGPIO = h3600_egpio;         /* Maintains across sleep? */
 225         ipaq_model_ops = h3600_model_ops;
 226 }
 227
 228 static void h3600_mach_init(void)
 229 {
 230         ipaqsa_mach_init();
 231         sa11x0_set_flash_data(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
 232 }
 233
 234
 235 MACHINE_START(H3600, "Compaq iPAQ H3600")
 236         BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
 237         BOOT_PARAMS(0xc0000100)
 238         MAPIO(h3600_map_io)
 239         INITIRQ(sa1100_init_irq)
 240         .timer          = &sa1100_timer,
 241         .init_machine   = h3600_mach_init,
 242 MACHINE_END
 243
 244 #endif /* CONFIG_SA1100_H3600 */
 245
 246