release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-mx25/mach-mx25_3ds.c

   1 /*
   2  * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16  * Boston, MA  02110-1301, USA.
  17  */
  18
  19 /*
  20  * This machine is known as:
  21  *  - i.MX25 3-Stack Development System
  22  *  - i.MX25 Platform Development Kit (i.MX25 PDK)
  23  */
  24
  25 #include <linux/types.h>
  26 #include <linux/init.h>
  27 #include <linux/delay.h>
  28 #include <linux/clk.h>
  29 #include <linux/irq.h>
  30 #include <linux/gpio.h>
  31 #include <linux/fec.h>
  32 #include <linux/platform_device.h>
  33 #include <linux/input/matrix_keypad.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/time.h>
  39 #include <asm/memory.h>
  40 #include <asm/mach/map.h>
  41 #include <mach/common.h>
  42 #include <mach/mx25.h>
  43 #include <mach/imxfb.h>
  44 #include <mach/iomux-mx25.h>
  45
  46 #include "devices-imx25.h"
  47 #include "devices.h"
  48
  49 static const struct imxuart_platform_data uart_pdata __initconst = {
  50         .flags = IMXUART_HAVE_RTSCTS,
  51 };
  52
  53 static struct pad_desc mx25pdk_pads[] = {
  54         MX25_PAD_FEC_MDC__FEC_MDC,
  55         MX25_PAD_FEC_MDIO__FEC_MDIO,
  56         MX25_PAD_FEC_TDATA0__FEC_TDATA0,
  57         MX25_PAD_FEC_TDATA1__FEC_TDATA1,
  58         MX25_PAD_FEC_TX_EN__FEC_TX_EN,
  59         MX25_PAD_FEC_RDATA0__FEC_RDATA0,
  60         MX25_PAD_FEC_RDATA1__FEC_RDATA1,
  61         MX25_PAD_FEC_RX_DV__FEC_RX_DV,
  62         MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
  63         MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
  64         MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
  65
  66         /* LCD */
  67         MX25_PAD_LD0__LD0,
  68         MX25_PAD_LD1__LD1,
  69         MX25_PAD_LD2__LD2,
  70         MX25_PAD_LD3__LD3,
  71         MX25_PAD_LD4__LD4,
  72         MX25_PAD_LD5__LD5,
  73         MX25_PAD_LD6__LD6,
  74         MX25_PAD_LD7__LD7,
  75         MX25_PAD_LD8__LD8,
  76         MX25_PAD_LD9__LD9,
  77         MX25_PAD_LD10__LD10,
  78         MX25_PAD_LD11__LD11,
  79         MX25_PAD_LD12__LD12,
  80         MX25_PAD_LD13__LD13,
  81         MX25_PAD_LD14__LD14,
  82         MX25_PAD_LD15__LD15,
  83         MX25_PAD_GPIO_E__LD16,
  84         MX25_PAD_GPIO_F__LD17,
  85         MX25_PAD_HSYNC__HSYNC,
  86         MX25_PAD_VSYNC__VSYNC,
  87         MX25_PAD_LSCLK__LSCLK,
  88         MX25_PAD_OE_ACD__OE_ACD,
  89         MX25_PAD_CONTRAST__CONTRAST,
  90
  91         /* Keypad */
  92         MX25_PAD_KPP_ROW0__KPP_ROW0,
  93         MX25_PAD_KPP_ROW1__KPP_ROW1,
  94         MX25_PAD_KPP_ROW2__KPP_ROW2,
  95         MX25_PAD_KPP_ROW3__KPP_ROW3,
  96         MX25_PAD_KPP_COL0__KPP_COL0,
  97         MX25_PAD_KPP_COL1__KPP_COL1,
  98         MX25_PAD_KPP_COL2__KPP_COL2,
  99         MX25_PAD_KPP_COL3__KPP_COL3,
 100 };
 101
 102 static struct fec_platform_data mx25_fec_pdata = {
 103         .phy    = PHY_INTERFACE_MODE_RMII,
 104 };
 105
 106 #define FEC_ENABLE_GPIO         35
 107 #define FEC_RESET_B_GPIO        104
 108
 109 static void __init mx25pdk_fec_reset(void)
 110 {
 111         gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
 112         gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
 113
 114         gpio_direction_output(FEC_ENABLE_GPIO, 0);  /* drop PHY power */
 115         gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
 116         udelay(2);
 117
 118         /* turn on PHY power and lift reset */
 119         gpio_set_value(FEC_ENABLE_GPIO, 1);
 120         gpio_set_value(FEC_RESET_B_GPIO, 1);
 121 }
 122
 123 static const struct mxc_nand_platform_data
 124 mx25pdk_nand_board_info __initconst = {
 125         .width          = 1,
 126         .hw_ecc         = 1,
 127         .flash_bbt      = 1,
 128 };
 129
 130 static struct imx_fb_videomode mx25pdk_modes[] = {
 131         {
 132                 .mode   = {
 133                         .name           = "CRT-VGA",
 134                         .refresh        = 60,
 135                         .xres           = 640,
 136                         .yres           = 480,
 137                         .pixclock       = 39683,
 138                         .left_margin    = 45,
 139                         .right_margin   = 114,
 140                         .upper_margin   = 33,
 141                         .lower_margin   = 11,
 142                         .hsync_len      = 1,
 143                         .vsync_len      = 1,
 144                 },
 145                 .bpp    = 16,
 146                 .pcr    = 0xFA208B80,
 147         },
 148 };
 149
 150 static struct imx_fb_platform_data mx25pdk_fb_pdata = {
 151         .mode           = mx25pdk_modes,
 152         .num_modes      = ARRAY_SIZE(mx25pdk_modes),
 153         .pwmr           = 0x00A903FF,
 154         .lscr1          = 0x00120300,
 155         .dmacr          = 0x00020010,
 156 };
 157
 158 static const uint32_t mx25pdk_keymap[] = {
 159         KEY(0, 0, KEY_UP),
 160         KEY(0, 1, KEY_DOWN),
 161         KEY(0, 2, KEY_VOLUMEDOWN),
 162         KEY(0, 3, KEY_HOME),
 163         KEY(1, 0, KEY_RIGHT),
 164         KEY(1, 1, KEY_LEFT),
 165         KEY(1, 2, KEY_ENTER),
 166         KEY(1, 3, KEY_VOLUMEUP),
 167         KEY(2, 0, KEY_F6),
 168         KEY(2, 1, KEY_F8),
 169         KEY(2, 2, KEY_F9),
 170         KEY(2, 3, KEY_F10),
 171         KEY(3, 0, KEY_F1),
 172         KEY(3, 1, KEY_F2),
 173         KEY(3, 2, KEY_F3),
 174         KEY(3, 3, KEY_POWER),
 175 };
 176
 177 static struct matrix_keymap_data mx25pdk_keymap_data = {
 178         .keymap         = mx25pdk_keymap,
 179         .keymap_size    = ARRAY_SIZE(mx25pdk_keymap),
 180 };
 181
 182 static void __init mx25pdk_init(void)
 183 {
 184         mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
 185                         ARRAY_SIZE(mx25pdk_pads));
 186
 187         imx25_add_imx_uart0(&uart_pdata);
 188         mxc_register_device(&mxc_usbh2, NULL);
 189         imx25_add_mxc_nand(&mx25pdk_nand_board_info);
 190         mxc_register_device(&mx25_rtc_device, NULL);
 191         mxc_register_device(&mx25_fb_device, &mx25pdk_fb_pdata);
 192         mxc_register_device(&mxc_wdt, NULL);
 193
 194         mx25pdk_fec_reset();
 195         mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
 196         mxc_register_device(&mx25_kpp_device, &mx25pdk_keymap_data);
 197 }
 198
 199 static void __init mx25pdk_timer_init(void)
 200 {
 201         mx25_clocks_init();
 202 }
 203
 204 static struct sys_timer mx25pdk_timer = {
 205         .init   = mx25pdk_timer_init,
 206 };
 207
 208 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
 209         /* Maintainer: Freescale Semiconductor, Inc. */
 210         .phys_io        = MX25_AIPS1_BASE_ADDR,
 211         .io_pg_offst    = ((MX25_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 212         .boot_params    = MX25_PHYS_OFFSET + 0x100,
 213         .map_io         = mx25_map_io,
 214         .init_irq       = mx25_init_irq,
 215         .init_machine   = mx25pdk_init,
 216         .timer          = &mx25pdk_timer,
 217 MACHINE_END