arch/arm/mach-pxa/ezx.c

   1 /*
   2  *  ezx.c - Common code for the EZX platform.
   3  *
   4  *  Copyright (C) 2005-2006 Harald Welte <laforge@openezx.org>,
   5  *                2007-2008 Daniel Ribeiro <drwyrm@gmail.com>,
   6  *                2007-2008 Stefan Schmidt <stefan@datenfreihafen.org>
   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/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/delay.h>
  18 #include <linux/pwm_backlight.h>
  19
  20 #include <asm/setup.h>
  21 #include <mach/pxafb.h>
  22 #include <mach/ohci.h>
  23 #include <mach/i2c.h>
  24
  25 #include <mach/mfp-pxa27x.h>
  26 #include <mach/pxa-regs.h>
  27 #include <mach/pxa2xx-regs.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30
  31 #include "devices.h"
  32 #include "generic.h"
  33
  34 static struct platform_pwm_backlight_data ezx_backlight_data = {
  35         .pwm_id         = 0,
  36         .max_brightness = 1023,
  37         .dft_brightness = 1023,
  38         .pwm_period_ns  = 78770,
  39 };
  40
  41 static struct platform_device ezx_backlight_device = {
  42         .name           = "pwm-backlight",
  43         .dev            = {
  44                 .parent = &pxa27x_device_pwm0.dev,
  45                 .platform_data = &ezx_backlight_data,
  46         },
  47 };
  48
  49 static struct pxafb_mode_info mode_ezx_old = {
  50         .pixclock               = 150000,
  51         .xres                   = 240,
  52         .yres                   = 320,
  53         .bpp                    = 16,
  54         .hsync_len              = 10,
  55         .left_margin            = 20,
  56         .right_margin           = 10,
  57         .vsync_len              = 2,
  58         .upper_margin           = 3,
  59         .lower_margin           = 2,
  60         .sync                   = 0,
  61 };
  62
  63 static struct pxafb_mach_info ezx_fb_info_1 = {
  64         .modes          = &mode_ezx_old,
  65         .num_modes      = 1,
  66         .lcd_conn       = LCD_COLOR_TFT_16BPP,
  67 };
  68
  69 static struct pxafb_mode_info mode_72r89803y01 = {
  70         .pixclock               = 192308,
  71         .xres                   = 240,
  72         .yres                   = 320,
  73         .bpp                    = 32,
  74         .depth                  = 18,
  75         .hsync_len              = 10,
  76         .left_margin            = 20,
  77         .right_margin           = 10,
  78         .vsync_len              = 2,
  79         .upper_margin           = 3,
  80         .lower_margin           = 2,
  81         .sync                   = 0,
  82 };
  83
  84 static struct pxafb_mach_info ezx_fb_info_2 = {
  85         .modes          = &mode_72r89803y01,
  86         .num_modes      = 1,
  87         .lcd_conn       = LCD_COLOR_TFT_18BPP,
  88 };
  89
  90 static struct platform_device *devices[] __initdata = {
  91         &ezx_backlight_device,
  92 };
  93
  94 static unsigned long ezx_pin_config[] __initdata = {
  95         /* PWM backlight */
  96         GPIO16_PWM0_OUT,
  97
  98         /* BTUART */
  99         GPIO42_BTUART_RXD,
 100         GPIO43_BTUART_TXD,
 101         GPIO44_BTUART_CTS,
 102         GPIO45_BTUART_RTS,
 103
 104         /* STUART */
 105         GPIO46_STUART_RXD,
 106         GPIO47_STUART_TXD,
 107
 108         /* For A780 support (connected with Neptune GSM chip) */
 109         GPIO30_USB_P3_2,        /* ICL_TXENB */
 110         GPIO31_USB_P3_6,        /* ICL_VPOUT */
 111         GPIO90_USB_P3_5,        /* ICL_VPIN */
 112         GPIO91_USB_P3_1,        /* ICL_XRXD */
 113         GPIO56_USB_P3_4,        /* ICL_VMOUT */
 114         GPIO113_USB_P3_3,       /* /ICL_VMIN */
 115
 116         /* I2C */
 117         GPIO117_I2C_SCL,
 118         GPIO118_I2C_SDA,
 119 };
 120
 121 static void __init ezx_init(void)
 122 {
 123         pxa2xx_mfp_config(ARRAY_AND_SIZE(ezx_pin_config));
 124         pxa_set_i2c_info(NULL);
 125         if (machine_is_ezx_a780() || machine_is_ezx_e680())
 126                 set_pxa_fb_info(&ezx_fb_info_1);
 127         else
 128                 set_pxa_fb_info(&ezx_fb_info_2);
 129
 130         platform_add_devices(devices, ARRAY_SIZE(devices));
 131 }
 132
 133 static void __init ezx_fixup(struct machine_desc *desc, struct tag *tags,
 134                 char **cmdline, struct meminfo *mi)
 135 {
 136         /* We have two ram chips. First one with 32MB at 0xA0000000 and a second
 137          * 16MB one at 0xAC000000
 138          */
 139         mi->nr_banks = 2;
 140         mi->bank[0].start = 0xa0000000;
 141         mi->bank[0].node = 0;
 142         mi->bank[0].size = (32*1024*1024);
 143         mi->bank[1].start = 0xac000000;
 144         mi->bank[1].node = 1;
 145         mi->bank[1].size = (16*1024*1024);
 146 }
 147
 148 #ifdef CONFIG_MACH_EZX_A780
 149 MACHINE_START(EZX_A780, "Motorola EZX A780")
 150         .phys_io        = 0x40000000,
 151         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 152         .fixup                  = ezx_fixup,
 153         .boot_params    = 0xa0000100,
 154         .map_io         = pxa_map_io,
 155         .init_irq       = pxa27x_init_irq,
 156         .timer          = &pxa_timer,
 157         .init_machine   = &ezx_init,
 158 MACHINE_END
 159 #endif
 160
 161 #ifdef CONFIG_MACH_EZX_E680
 162 MACHINE_START(EZX_E680, "Motorola EZX E680")
 163         .phys_io        = 0x40000000,
 164         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 165         .fixup                  = ezx_fixup,
 166         .boot_params    = 0xa0000100,
 167         .map_io         = pxa_map_io,
 168         .init_irq       = pxa27x_init_irq,
 169         .timer          = &pxa_timer,
 170         .init_machine   = &ezx_init,
 171 MACHINE_END
 172 #endif
 173
 174 #ifdef CONFIG_MACH_EZX_A1200
 175 MACHINE_START(EZX_A1200, "Motorola EZX A1200")
 176         .phys_io        = 0x40000000,
 177         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 178         .fixup                  = ezx_fixup,
 179         .boot_params    = 0xa0000100,
 180         .map_io         = pxa_map_io,
 181         .init_irq       = pxa27x_init_irq,
 182         .timer          = &pxa_timer,
 183         .init_machine   = &ezx_init,
 184 MACHINE_END
 185 #endif
 186
 187 #ifdef CONFIG_MACH_EZX_A910
 188 MACHINE_START(EZX_A910, "Motorola EZX A910")
 189         .phys_io        = 0x40000000,
 190         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 191         .fixup                  = ezx_fixup,
 192         .boot_params    = 0xa0000100,
 193         .map_io         = pxa_map_io,
 194         .init_irq       = pxa27x_init_irq,
 195         .timer          = &pxa_timer,
 196         .init_machine   = &ezx_init,
 197 MACHINE_END
 198 #endif
 199
 200 #ifdef CONFIG_MACH_EZX_E6
 201 MACHINE_START(EZX_E6, "Motorola EZX E6")
 202         .phys_io        = 0x40000000,
 203         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 204         .fixup                  = ezx_fixup,
 205         .boot_params    = 0xa0000100,
 206         .map_io         = pxa_map_io,
 207         .init_irq       = pxa27x_init_irq,
 208         .timer          = &pxa_timer,
 209         .init_machine   = &ezx_init,
 210 MACHINE_END
 211 #endif
 212
 213 #ifdef CONFIG_MACH_EZX_E2
 214 MACHINE_START(EZX_E2, "Motorola EZX E2")
 215         .phys_io        = 0x40000000,
 216         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 217         .fixup                  = ezx_fixup,
 218         .boot_params    = 0xa0000100,
 219         .map_io         = pxa_map_io,
 220         .init_irq       = pxa27x_init_irq,
 221         .timer          = &pxa_timer,
 222         .init_machine   = &ezx_init,
 223 MACHINE_END
 224 #endif