arch/arm/plat-ipaq/h3100.c

   1 /*
   2  * Hardware definitions for HP iPAQ H31xx Handheld Computers
   3  *
   4  * Copyright 2000-2002 Compaq Computer Corporation.
   5  * Copyright 2002-2003 Hewlett-Packard Company.
   6  *
   7  * Use consistent with the GNU GPL is permitted,
   8  * provided that this copyright notice is
   9  * preserved in its entirety in all copies and derived works.
  10  *
  11  * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
  12  * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
  13  * FITNESS FOR ANY PARTICULAR PURPOSE.
  14  *
  15  * Author: Jamey Hicks.
  16  *
  17  * History:
  18  *
  19  * 2001-10-??   Andrew Christian   Added support for iPAQ H3800
  20  *                                 and abstracted EGPIO interface.
  21  *
  22  */
  23 #include <linux/module.h>
  24 #include <linux/init.h>
  25 #include <linux/kernel.h>
  26 #include <linux/tty.h>
  27 #include <linux/sched.h>
  28 #include <linux/pm.h>
  29 #include <linux/lcd.h>
  30 #include <linux/backlight.h>
  31 #include <linux/fb.h>
  32 #include <../drivers/video/sa1100fb.h>
  33
  34 #include <asm/irq.h>
  35 #include <asm/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/setup.h>
  38
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/serial_sa1100.h>
  42
  43 #include <linux/serial_core.h>
  44
  45 #if defined (CONFIG_SA1100_H3600) || defined (CONFIG_SA1100_H3100)
  46 #include <asm/arch/h3600_gpio.h>
  47 #endif
  48
  49 #include "../mach-sa1100/generic.h"
  50
  51
  52 /************************* H3100 *************************/
  53
  54 #define H3100_EGPIO     (*(volatile unsigned int *)IPAQSA_EGPIO_VIRT)
  55 static unsigned int h3100_egpio = 0;
  56
  57 static void h3100_control_egpio( enum ipaq_egpio_type x, int setp )
  58 {
  59         unsigned int egpio = 0;
  60         long         gpio = 0;
  61         unsigned long flags;
  62
  63         switch (x) {
  64         case IPAQ_EGPIO_CODEC_NRESET:
  65                 egpio |= EGPIO_H3600_CODEC_NRESET;
  66                 break;
  67         case IPAQ_EGPIO_AUDIO_ON:
  68                 gpio |= GPIO_H3100_AUD_PWR_ON
  69                         | GPIO_H3100_AUD_ON;
  70                 break;
  71         case IPAQ_EGPIO_QMUTE:
  72                 gpio |= GPIO_H3100_QMUTE;
  73                 break;
  74         case IPAQ_EGPIO_OPT_NVRAM_ON:
  75                 egpio |= EGPIO_H3600_OPT_NVRAM_ON;
  76                 break;
  77         case IPAQ_EGPIO_OPT_ON:
  78                 egpio |= EGPIO_H3600_OPT_ON;
  79                 break;
  80         case IPAQ_EGPIO_CARD_RESET:
  81                 egpio |= EGPIO_H3600_CARD_RESET;
  82                 break;
  83         case IPAQ_EGPIO_OPT_RESET:
  84                 egpio |= EGPIO_H3600_OPT_RESET;
  85                 break;
  86         case IPAQ_EGPIO_IR_ON:
  87                 gpio |= GPIO_H3100_IR_ON;
  88                 break;
  89         case IPAQ_EGPIO_IR_FSEL:
  90                 gpio |= GPIO_H3100_IR_FSEL;
  91                 break;
  92         case IPAQ_EGPIO_RS232_ON:
  93                 egpio |= EGPIO_H3600_RS232_ON;
  94                 break;
  95         case IPAQ_EGPIO_VPP_ON:
  96                 egpio |= EGPIO_H3600_VPP_ON;
  97                 break;
  98         default:
  99                 printk("%s: unhandled egpio=%d\n", __FUNCTION__, x);
 100         }
 101
 102         if ( egpio || gpio ) {
 103                 local_irq_save(flags);
 104                 if ( setp ) {
 105                         h3100_egpio |= egpio;
 106                         GPSR = gpio;
 107                 } else {
 108                         h3100_egpio &= ~egpio;
 109                         GPCR = gpio;
 110                 }
 111                 H3100_EGPIO = h3100_egpio;
 112                 local_irq_restore(flags);
 113         }
 114 }
 115
 116 static struct ipaq_model_ops h3100_model_ops __initdata = {
 117         .generic_name = "3100",
 118         .control      = h3100_control_egpio,
 119 };
 120
 121
 122 #if 0
 123 static struct sa1100fb_mach_info h3100_sa1100fb_mach_info __initdata = {
 124         .pixclock       = 406977,       .bpp            = 4,
 125         .xres           = 320,          .yres           = 240,
 126
 127         .hsync_len      = 26,           .vsync_len      = 41,
 128         .left_margin    = 4,            .upper_margin   = 0,
 129         .right_margin   = 4,            .lower_margin   = 0,
 130
 131         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 132         .cmap_greyscale = 1,
 133         .cmap_inverse   = 1,
 134
 135         .lccr0          = LCCR0_Mono | LCCR0_4PixMono | LCCR0_Sngl | LCCR0_Pas,
 136         .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
 137 };
 138
 139 static void *h3100_get_mach_info(struct lcd_device *lm)
 140 {
 141         return (void *)&h3100_sa1100fb_mach_info;
 142 }
 143
 144 struct lcd_device h3100_lcd_device = {
 145         .get_mach_info = h3100_get_mach_info,
 146         .set_power = h3100_lcd_set_power,
 147         .get_power = h3100_lcd_get_power
 148 };
 149 #endif
 150
 151
 152 #define H3100_DIRECT_EGPIO (GPIO_H3100_BT_ON      \
 153                           | GPIO_H3100_GPIO3      \
 154                           | GPIO_H3100_QMUTE      \
 155                           | GPIO_H3100_LCD_3V_ON  \
 156                           | GPIO_H3100_AUD_ON     \
 157                           | GPIO_H3100_AUD_PWR_ON \
 158                           | GPIO_H3100_IR_ON      \
 159                           | GPIO_H3100_IR_FSEL)
 160
 161 static void __init h3100_map_io(void)
 162 {
 163         ipaqsa_map_io();
 164         /* sa1100_register_uart(1, 1);  */ /* Microcontroller */
 165
 166         /* Initialize h3100-specific values here */
 167         GPCR = 0x0fffffff;       /* All outputs are set low by default */
 168         GPDR = GPIO_H3600_COM_RTS  | GPIO_H3600_L3_CLOCK |
 169                GPIO_H3600_L3_MODE  | GPIO_H3600_L3_DATA  |
 170                GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 |
 171                H3100_DIRECT_EGPIO;
 172
 173         /* Older bootldrs put GPIO2-9 in alternate mode on the
 174            assumption that they are used for video */
 175         GAFR &= ~H3100_DIRECT_EGPIO;
 176
 177         H3100_EGPIO = h3100_egpio;
 178         ipaq_model_ops = h3100_model_ops;
 179 }
 180
 181 static void __init h3100_mach_init(void)
 182 {
 183         ipaqsa_mach_init();
 184 }
 185
 186 MACHINE_START(H3100, "HP iPAQ H3100")
 187         BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
 188         BOOT_PARAMS(0xc0000100)
 189         MAPIO(h3100_map_io)
 190         INITIRQ(sa1100_init_irq)
 191         .timer          = &sa1100_timer,
 192         .init_machine   = &h3100_mach_init,
 193 MACHINE_END
 194