arch/arm/mach-imx/mach-eukrea_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
  30 #include <mach/eukrea-baseboards.h>
  31 #include <mach/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/time.h>
  35 #include <asm/memory.h>
  36 #include <asm/mach/map.h>
  37 #include <mach/common.h>
  38 #include <mach/mx25.h>
  39 #include <mach/mxc_nand.h>
  40 #include <mach/imxfb.h>
  41 #include <mach/iomux-mx25.h>
  42
  43 #include "devices-imx25.h"
  44
  45 static const struct imxuart_platform_data uart_pdata __initconst = {
  46         .flags = IMXUART_HAVE_RTSCTS,
  47 };
  48
  49 static iomux_v3_cfg_t eukrea_cpuimx25_pads[] = {
  50         /* FEC - RMII */
  51         MX25_PAD_FEC_MDC__FEC_MDC,
  52         MX25_PAD_FEC_MDIO__FEC_MDIO,
  53         MX25_PAD_FEC_TDATA0__FEC_TDATA0,
  54         MX25_PAD_FEC_TDATA1__FEC_TDATA1,
  55         MX25_PAD_FEC_TX_EN__FEC_TX_EN,
  56         MX25_PAD_FEC_RDATA0__FEC_RDATA0,
  57         MX25_PAD_FEC_RDATA1__FEC_RDATA1,
  58         MX25_PAD_FEC_RX_DV__FEC_RX_DV,
  59         MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
  60         /* I2C1 */
  61         MX25_PAD_I2C1_CLK__I2C1_CLK,
  62         MX25_PAD_I2C1_DAT__I2C1_DAT,
  63 };
  64
  65 static const struct fec_platform_data mx25_fec_pdata __initconst = {
  66         .phy    = PHY_INTERFACE_MODE_RMII,
  67 };
  68
  69 static const struct mxc_nand_platform_data
  70 eukrea_cpuimx25_nand_board_info __initconst = {
  71         .width          = 1,
  72         .hw_ecc         = 1,
  73         .flash_bbt      = 1,
  74 };
  75
  76 static const struct imxi2c_platform_data
  77 eukrea_cpuimx25_i2c0_data __initconst = {
  78         .bitrate = 100000,
  79 };
  80
  81 static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
  82         {
  83                 I2C_BOARD_INFO("pcf8563", 0x51),
  84         },
  85 };
  86
  87 static const struct mxc_usbh_platform_data otg_pdata __initconst = {
  88         .portsc = MXC_EHCI_MODE_UTMI,
  89         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
  90 };
  91
  92 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
  93         .portsc = MXC_EHCI_MODE_SERIAL,
  94         .flags  = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
  95                   MXC_EHCI_IPPUE_DOWN,
  96 };
  97
  98 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
  99         .operating_mode = FSL_USB2_DR_DEVICE,
 100         .phy_mode       = FSL_USB2_PHY_UTMI,
 101 };
 102
 103 static int otg_mode_host;
 104
 105 static int __init eukrea_cpuimx25_otg_mode(char *options)
 106 {
 107         if (!strcmp(options, "host"))
 108                 otg_mode_host = 1;
 109         else if (!strcmp(options, "device"))
 110                 otg_mode_host = 0;
 111         else
 112                 pr_info("otg_mode neither \"host\" nor \"device\". "
 113                         "Defaulting to device\n");
 114         return 0;
 115 }
 116 __setup("otg_mode=", eukrea_cpuimx25_otg_mode);
 117
 118 static void __init eukrea_cpuimx25_init(void)
 119 {
 120         if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
 121                         ARRAY_SIZE(eukrea_cpuimx25_pads)))
 122                 printk(KERN_ERR "error setting cpuimx25 pads !\n");
 123
 124         imx25_add_imx_uart0(&uart_pdata);
 125         imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
 126         imx25_add_imxdi_rtc(NULL);
 127         imx25_add_fec(&mx25_fec_pdata);
 128
 129         i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
 130                                 ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
 131         imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
 132
 133         if (otg_mode_host)
 134                 imx25_add_mxc_ehci_otg(&otg_pdata);
 135         else
 136                 imx25_add_fsl_usb2_udc(&otg_device_pdata);
 137
 138         imx25_add_mxc_ehci_hs(&usbh2_pdata);
 139
 140 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
 141         eukrea_mbimxsd25_baseboard_init();
 142 #endif
 143 }
 144
 145 static void __init eukrea_cpuimx25_timer_init(void)
 146 {
 147         mx25_clocks_init();
 148 }
 149
 150 static struct sys_timer eukrea_cpuimx25_timer = {
 151         .init   = eukrea_cpuimx25_timer_init,
 152 };
 153
 154 MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
 155         /* Maintainer: Eukrea Electromatique */
 156         .boot_params    = MX25_PHYS_OFFSET + 0x100,
 157         .map_io         = mx25_map_io,
 158         .init_irq       = mx25_init_irq,
 159         .init_machine   = eukrea_cpuimx25_init,
 160         .timer          = &eukrea_cpuimx25_timer,
 161 MACHINE_END