release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-mx25/mach-cpuimx25.c

   1 /*
   2  * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
   3  * Copyright 2010 Eric Bénard - Eukréa Electromatique, <eric@eukrea.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <linux/types.h>
  21 #include <linux/init.h>
  22 #include <linux/delay.h>
  23 #include <linux/clk.h>
  24 #include <linux/irq.h>
  25 #include <linux/gpio.h>
  26 #include <linux/fec.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/usb/otg.h>
  29 #include <linux/usb/ulpi.h>
  30 #include <linux/fsl_devices.h>
  31
  32 #include <mach/eukrea-baseboards.h>
  33 #include <mach/hardware.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/time.h>
  37 #include <asm/memory.h>
  38 #include <asm/mach/map.h>
  39 #include <mach/common.h>
  40 #include <mach/mx25.h>
  41 #include <mach/mxc_nand.h>
  42 #include <mach/imxfb.h>
  43 #include <mach/mxc_ehci.h>
  44 #include <mach/ulpi.h>
  45 #include <mach/iomux-mx25.h>
  46
  47 #include "devices-imx25.h"
  48 #include "devices.h"
  49
  50 static const struct imxuart_platform_data uart_pdata __initconst = {
  51         .flags = IMXUART_HAVE_RTSCTS,
  52 };
  53
  54 static struct pad_desc eukrea_cpuimx25_pads[] = {
  55         /* FEC - RMII */
  56         MX25_PAD_FEC_MDC__FEC_MDC,
  57         MX25_PAD_FEC_MDIO__FEC_MDIO,
  58         MX25_PAD_FEC_TDATA0__FEC_TDATA0,
  59         MX25_PAD_FEC_TDATA1__FEC_TDATA1,
  60         MX25_PAD_FEC_TX_EN__FEC_TX_EN,
  61         MX25_PAD_FEC_RDATA0__FEC_RDATA0,
  62         MX25_PAD_FEC_RDATA1__FEC_RDATA1,
  63         MX25_PAD_FEC_RX_DV__FEC_RX_DV,
  64         MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
  65         /* I2C1 */
  66         MX25_PAD_I2C1_CLK__I2C1_CLK,
  67         MX25_PAD_I2C1_DAT__I2C1_DAT,
  68 };
  69
  70 static struct fec_platform_data mx25_fec_pdata = {
  71         .phy    = PHY_INTERFACE_MODE_RMII,
  72 };
  73
  74 static const struct mxc_nand_platform_data
  75 eukrea_cpuimx25_nand_board_info __initconst = {
  76         .width          = 1,
  77         .hw_ecc         = 1,
  78         .flash_bbt      = 1,
  79 };
  80
  81 static const struct imxi2c_platform_data
  82 eukrea_cpuimx25_i2c0_data __initconst = {
  83         .bitrate = 100000,
  84 };
  85
  86 static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
  87         {
  88                 I2C_BOARD_INFO("pcf8563", 0x51),
  89         },
  90 };
  91
  92 static struct mxc_usbh_platform_data otg_pdata = {
  93         .portsc = MXC_EHCI_MODE_UTMI,
  94         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
  95 };
  96
  97 static struct mxc_usbh_platform_data usbh2_pdata = {
  98         .portsc = MXC_EHCI_MODE_SERIAL,
  99         .flags  = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
 100                   MXC_EHCI_IPPUE_DOWN,
 101 };
 102
 103 static struct fsl_usb2_platform_data otg_device_pdata = {
 104         .operating_mode = FSL_USB2_DR_DEVICE,
 105         .phy_mode       = FSL_USB2_PHY_UTMI,
 106 };
 107
 108 static int otg_mode_host;
 109
 110 static int __init eukrea_cpuimx25_otg_mode(char *options)
 111 {
 112         if (!strcmp(options, "host"))
 113                 otg_mode_host = 1;
 114         else if (!strcmp(options, "device"))
 115                 otg_mode_host = 0;
 116         else
 117                 pr_info("otg_mode neither \"host\" nor \"device\". "
 118                         "Defaulting to device\n");
 119         return 0;
 120 }
 121 __setup("otg_mode=", eukrea_cpuimx25_otg_mode);
 122
 123 static void __init eukrea_cpuimx25_init(void)
 124 {
 125         if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
 126                         ARRAY_SIZE(eukrea_cpuimx25_pads)))
 127                 printk(KERN_ERR "error setting cpuimx25 pads !\n");
 128
 129         imx25_add_imx_uart0(&uart_pdata);
 130         imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
 131         mxc_register_device(&mx25_rtc_device, NULL);
 132         mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
 133
 134         i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
 135                                 ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
 136         imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
 137
 138 #if defined(CONFIG_USB_ULPI)
 139         if (otg_mode_host) {
 140                 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 141                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 142
 143                 mxc_register_device(&mxc_otg, &otg_pdata);
 144         }
 145         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 146 #endif
 147         if (!otg_mode_host)
 148                 mxc_register_device(&otg_udc_device, &otg_device_pdata);
 149
 150 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
 151         eukrea_mbimxsd25_baseboard_init();
 152 #endif
 153 }
 154
 155 static void __init eukrea_cpuimx25_timer_init(void)
 156 {
 157         mx25_clocks_init();
 158 }
 159
 160 static struct sys_timer eukrea_cpuimx25_timer = {
 161         .init   = eukrea_cpuimx25_timer_init,
 162 };
 163
 164 MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
 165         /* Maintainer: Eukrea Electromatique */
 166         .phys_io        = MX25_AIPS1_BASE_ADDR,
 167         .io_pg_offst    = ((MX25_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 168         .boot_params    = MX25_PHYS_OFFSET + 0x100,
 169         .map_io         = mx25_map_io,
 170         .init_irq       = mx25_init_irq,
 171         .init_machine   = eukrea_cpuimx25_init,
 172         .timer          = &eukrea_cpuimx25_timer,
 173 MACHINE_END