arch/arm/mach-mx3/mach-cpuimx35.c

   1 /*
   2  * Copyright (C) 2010 Eric Benard - eric@eukrea.com
   3  * Copyright (C) 2009 Sascha Hauer, Pengutronix
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <linux/types.h>
  21 #include <linux/init.h>
  22
  23 #include <linux/platform_device.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/memory.h>
  26 #include <linux/gpio.h>
  27 #include <linux/interrupt.h>
  28 #include <linux/delay.h>
  29 #include <linux/i2c.h>
  30 #include <linux/i2c/tsc2007.h>
  31 #include <linux/usb/otg.h>
  32 #include <linux/usb/ulpi.h>
  33 #include <linux/i2c-gpio.h>
  34
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/time.h>
  38 #include <asm/mach/map.h>
  39
  40 #include <mach/eukrea-baseboards.h>
  41 #include <mach/hardware.h>
  42 #include <mach/common.h>
  43 #include <mach/iomux-mx35.h>
  44 #include <mach/mxc_nand.h>
  45 #include <mach/mxc_ehci.h>
  46
  47 #include "devices-imx35.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 const struct imxi2c_platform_data
  55                 eukrea_cpuimx35_i2c0_data __initconst = {
  56         .bitrate =              100000,
  57 };
  58
  59 static struct tsc2007_platform_data tsc2007_info = {
  60         .model                  = 2007,
  61         .x_plate_ohms           = 180,
  62 };
  63
  64 #define TSC2007_IRQGPIO         (2 * 32 + 2)
  65 static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
  66         {
  67                 I2C_BOARD_INFO("pcf8563", 0x51),
  68         }, {
  69                 I2C_BOARD_INFO("tsc2007", 0x48),
  70                 .type           = "tsc2007",
  71                 .platform_data  = &tsc2007_info,
  72                 .irq            = gpio_to_irq(TSC2007_IRQGPIO),
  73         },
  74 };
  75
  76 static struct platform_device *devices[] __initdata = {
  77         &imx_wdt_device0,
  78 };
  79
  80 static struct pad_desc eukrea_cpuimx35_pads[] = {
  81         /* UART1 */
  82         MX35_PAD_CTS1__UART1_CTS,
  83         MX35_PAD_RTS1__UART1_RTS,
  84         MX35_PAD_TXD1__UART1_TXD_MUX,
  85         MX35_PAD_RXD1__UART1_RXD_MUX,
  86         /* FEC */
  87         MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
  88         MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
  89         MX35_PAD_FEC_RX_DV__FEC_RX_DV,
  90         MX35_PAD_FEC_COL__FEC_COL,
  91         MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
  92         MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
  93         MX35_PAD_FEC_TX_EN__FEC_TX_EN,
  94         MX35_PAD_FEC_MDC__FEC_MDC,
  95         MX35_PAD_FEC_MDIO__FEC_MDIO,
  96         MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
  97         MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
  98         MX35_PAD_FEC_CRS__FEC_CRS,
  99         MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
 100         MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
 101         MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
 102         MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
 103         MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
 104         MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
 105         /* I2C1 */
 106         MX35_PAD_I2C1_CLK__I2C1_SCL,
 107         MX35_PAD_I2C1_DAT__I2C1_SDA,
 108         /* TSC2007 IRQ */
 109         MX35_PAD_ATA_DA2__GPIO3_2,
 110 };
 111
 112 static const struct mxc_nand_platform_data
 113                 eukrea_cpuimx35_nand_board_info __initconst = {
 114         .width          = 1,
 115         .hw_ecc         = 1,
 116         .flash_bbt      = 1,
 117 };
 118
 119 static struct mxc_usbh_platform_data __maybe_unused otg_pdata = {
 120         .portsc = MXC_EHCI_MODE_UTMI,
 121         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 122 };
 123
 124 static struct mxc_usbh_platform_data __maybe_unused usbh1_pdata = {
 125         .portsc = MXC_EHCI_MODE_SERIAL,
 126         .flags  = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
 127                   MXC_EHCI_IPPUE_DOWN,
 128 };
 129
 130 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 131         .operating_mode = FSL_USB2_DR_DEVICE,
 132         .phy_mode       = FSL_USB2_PHY_UTMI,
 133         .workaround     = FLS_USB2_WORKAROUND_ENGCM09152,
 134 };
 135
 136 static int otg_mode_host;
 137
 138 static int __init eukrea_cpuimx35_otg_mode(char *options)
 139 {
 140         if (!strcmp(options, "host"))
 141                 otg_mode_host = 1;
 142         else if (!strcmp(options, "device"))
 143                 otg_mode_host = 0;
 144         else
 145                 pr_info("otg_mode neither \"host\" nor \"device\". "
 146                         "Defaulting to device\n");
 147         return 0;
 148 }
 149 __setup("otg_mode=", eukrea_cpuimx35_otg_mode);
 150
 151 /*
 152  * Board specific initialization.
 153  */
 154 static void __init mxc_board_init(void)
 155 {
 156         mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
 157                         ARRAY_SIZE(eukrea_cpuimx35_pads));
 158
 159         imx35_add_fec(NULL);
 160         platform_add_devices(devices, ARRAY_SIZE(devices));
 161
 162         imx35_add_imx_uart0(&uart_pdata);
 163         imx35_add_mxc_nand(&eukrea_cpuimx35_nand_board_info);
 164
 165         i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
 166                         ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
 167         imx35_add_imx_i2c0(&eukrea_cpuimx35_i2c0_data);
 168
 169         if (otg_mode_host)
 170                 mxc_register_device(&mxc_otg_host, &otg_pdata);
 171         else
 172                 imx35_add_fsl_usb2_udc(&otg_device_pdata);
 173
 174         mxc_register_device(&mxc_usbh1, &usbh1_pdata);
 175
 176 #ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
 177         eukrea_mbimxsd35_baseboard_init();
 178 #endif
 179 }
 180
 181 static void __init eukrea_cpuimx35_timer_init(void)
 182 {
 183         mx35_clocks_init();
 184 }
 185
 186 struct sys_timer eukrea_cpuimx35_timer = {
 187         .init   = eukrea_cpuimx35_timer_init,
 188 };
 189
 190 MACHINE_START(EUKREA_CPUIMX35, "Eukrea CPUIMX35")
 191         /* Maintainer: Eukrea Electromatique */
 192         .boot_params    = MX3x_PHYS_OFFSET + 0x100,
 193         .map_io         = mx35_map_io,
 194         .init_irq       = mx35_init_irq,
 195         .init_machine   = mxc_board_init,
 196         .timer          = &eukrea_cpuimx35_timer,
 197 MACHINE_END