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