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/platform_device.h>
  27 #include <linux/usb/otg.h>
  28 #include <linux/usb/ulpi.h>
  29 #include <linux/fsl_devices.h>
  30
  31 #include <mach/eukrea-baseboards.h>
  32 #include <mach/hardware.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/time.h>
  36 #include <asm/memory.h>
  37 #include <asm/mach/map.h>
  38 #include <mach/common.h>
  39 #include <mach/mx25.h>
  40 #include <mach/mxc_nand.h>
  41 #include <mach/imxfb.h>
  42 #include <mach/mxc_ehci.h>
  43 #include <mach/iomux-mx25.h>
  44
  45 #include "devices-imx25.h"
  46 #include "devices.h"
  47
  48 static const struct imxuart_platform_data uart_pdata __initconst = {
  49         .flags = IMXUART_HAVE_RTSCTS,
  50 };
  51
  52 static struct pad_desc eukrea_cpuimx25_pads[] = {
  53         /* FEC - RMII */
  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         /* I2C1 */
  64         MX25_PAD_I2C1_CLK__I2C1_CLK,
  65         MX25_PAD_I2C1_DAT__I2C1_DAT,
  66 };
  67
  68 static const struct fec_platform_data mx25_fec_pdata __initconst = {
  69         .phy    = PHY_INTERFACE_MODE_RMII,
  70 };
  71
  72 static const struct mxc_nand_platform_data
  73 eukrea_cpuimx25_nand_board_info __initconst = {
  74         .width          = 1,
  75         .hw_ecc         = 1,
  76         .flash_bbt      = 1,
  77 };
  78
  79 static const struct imxi2c_platform_data
  80 eukrea_cpuimx25_i2c0_data __initconst = {
  81         .bitrate = 100000,
  82 };
  83
  84 static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
  85         {
  86                 I2C_BOARD_INFO("pcf8563", 0x51),
  87         },
  88 };
  89
  90 static struct mxc_usbh_platform_data otg_pdata = {
  91         .portsc = MXC_EHCI_MODE_UTMI,
  92         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
  93 };
  94
  95 static struct mxc_usbh_platform_data usbh2_pdata = {
  96         .portsc = MXC_EHCI_MODE_SERIAL,
  97         .flags  = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
  98                   MXC_EHCI_IPPUE_DOWN,
  99 };
 100
 101 static struct fsl_usb2_platform_data otg_device_pdata = {
 102         .operating_mode = FSL_USB2_DR_DEVICE,
 103         .phy_mode       = FSL_USB2_PHY_UTMI,
 104 };
 105
 106 static int otg_mode_host;
 107
 108 static int __init eukrea_cpuimx25_otg_mode(char *options)
 109 {
 110         if (!strcmp(options, "host"))
 111                 otg_mode_host = 1;
 112         else if (!strcmp(options, "device"))
 113                 otg_mode_host = 0;
 114         else
 115                 pr_info("otg_mode neither \"host\" nor \"device\". "
 116                         "Defaulting to device\n");
 117         return 0;
 118 }
 119 __setup("otg_mode=", eukrea_cpuimx25_otg_mode);
 120
 121 static void __init eukrea_cpuimx25_init(void)
 122 {
 123         if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
 124                         ARRAY_SIZE(eukrea_cpuimx25_pads)))
 125                 printk(KERN_ERR "error setting cpuimx25 pads !\n");
 126
 127         imx25_add_imx_uart0(&uart_pdata);
 128         imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
 129         mxc_register_device(&mx25_rtc_device, NULL);
 130         imx25_add_fec(&mx25_fec_pdata);
 131
 132         i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
 133                                 ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
 134         imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
 135
 136         if (otg_mode_host)
 137                 mxc_register_device(&mxc_otg, &otg_pdata);
 138         else
 139                 mxc_register_device(&otg_udc_device, &otg_device_pdata);
 140
 141         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 142
 143 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
 144         eukrea_mbimxsd25_baseboard_init();
 145 #endif
 146 }
 147
 148 static void __init eukrea_cpuimx25_timer_init(void)
 149 {
 150         mx25_clocks_init();
 151 }
 152
 153 static struct sys_timer eukrea_cpuimx25_timer = {
 154         .init   = eukrea_cpuimx25_timer_init,
 155 };
 156
 157 MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
 158         /* Maintainer: Eukrea Electromatique */
 159         .boot_params    = MX25_PHYS_OFFSET + 0x100,
 160         .map_io         = mx25_map_io,
 161         .init_irq       = mx25_init_irq,
 162         .init_machine   = eukrea_cpuimx25_init,
 163         .timer          = &eukrea_cpuimx25_timer,
 164 MACHINE_END