arch/arm/mach-imx/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 "common.h"
  41 #include "devices-imx35.h"
  42 #include "eukrea-baseboards.h"
  43 #include "hardware.h"
  44 #include "iomux-mx35.h"
  45
  46 static const struct imxuart_platform_data uart_pdata __initconst = {
  47         .flags = IMXUART_HAVE_RTSCTS,
  48 };
  49
  50 static const struct imxi2c_platform_data
  51                 eukrea_cpuimx35_i2c0_data __initconst = {
  52         .bitrate =              100000,
  53 };
  54
  55 #define TSC2007_IRQGPIO         IMX_GPIO_NR(3, 2)
  56 static int tsc2007_get_pendown_state(struct device *dev)
  57 {
  58         return !gpio_get_value(TSC2007_IRQGPIO);
  59 }
  60
  61 static struct tsc2007_platform_data tsc2007_info = {
  62         .model                  = 2007,
  63         .x_plate_ohms           = 180,
  64         .get_pendown_state = tsc2007_get_pendown_state,
  65 };
  66
  67 static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
  68         {
  69                 I2C_BOARD_INFO("pcf8563", 0x51),
  70         }, {
  71                 I2C_BOARD_INFO("tsc2007", 0x48),
  72                 .platform_data  = &tsc2007_info,
  73                 /* irq number is run-time assigned */
  74         },
  75 };
  76
  77 static iomux_v3_cfg_t eukrea_cpuimx35_pads[] = {
  78         /* UART1 */
  79         MX35_PAD_CTS1__UART1_CTS,
  80         MX35_PAD_RTS1__UART1_RTS,
  81         MX35_PAD_TXD1__UART1_TXD_MUX,
  82         MX35_PAD_RXD1__UART1_RXD_MUX,
  83         /* FEC */
  84         MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
  85         MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
  86         MX35_PAD_FEC_RX_DV__FEC_RX_DV,
  87         MX35_PAD_FEC_COL__FEC_COL,
  88         MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
  89         MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
  90         MX35_PAD_FEC_TX_EN__FEC_TX_EN,
  91         MX35_PAD_FEC_MDC__FEC_MDC,
  92         MX35_PAD_FEC_MDIO__FEC_MDIO,
  93         MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
  94         MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
  95         MX35_PAD_FEC_CRS__FEC_CRS,
  96         MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
  97         MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
  98         MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
  99         MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
 100         MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
 101         MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
 102         /* I2C1 */
 103         MX35_PAD_I2C1_CLK__I2C1_SCL,
 104         MX35_PAD_I2C1_DAT__I2C1_SDA,
 105         /* TSC2007 IRQ */
 106         MX35_PAD_ATA_DA2__GPIO3_2,
 107 };
 108
 109 static const struct mxc_nand_platform_data
 110                 eukrea_cpuimx35_nand_board_info __initconst = {
 111         .width          = 1,
 112         .hw_ecc         = 1,
 113         .flash_bbt      = 1,
 114 };
 115
 116 static int eukrea_cpuimx35_otg_init(struct platform_device *pdev)
 117 {
 118         return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 119 }
 120
 121 static const struct mxc_usbh_platform_data otg_pdata __initconst = {
 122         .init   = eukrea_cpuimx35_otg_init,
 123         .portsc = MXC_EHCI_MODE_UTMI,
 124 };
 125
 126 static int eukrea_cpuimx35_usbh1_init(struct platform_device *pdev)
 127 {
 128         return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
 129                         MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
 130 }
 131
 132 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 133         .init   = eukrea_cpuimx35_usbh1_init,
 134         .portsc = MXC_EHCI_MODE_SERIAL,
 135 };
 136
 137 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 138         .operating_mode = FSL_USB2_DR_DEVICE,
 139         .phy_mode       = FSL_USB2_PHY_UTMI,
 140         .workaround     = FLS_USB2_WORKAROUND_ENGCM09152,
 141 };
 142
 143 static bool otg_mode_host __initdata;
 144
 145 static int __init eukrea_cpuimx35_otg_mode(char *options)
 146 {
 147         if (!strcmp(options, "host"))
 148                 otg_mode_host = true;
 149         else if (!strcmp(options, "device"))
 150                 otg_mode_host = false;
 151         else
 152                 pr_info("otg_mode neither \"host\" nor \"device\". "
 153                         "Defaulting to device\n");
 154         return 1;
 155 }
 156 __setup("otg_mode=", eukrea_cpuimx35_otg_mode);
 157
 158 /*
 159  * Board specific initialization.
 160  */
 161 static void __init eukrea_cpuimx35_init(void)
 162 {
 163         imx35_soc_init();
 164
 165         mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
 166                         ARRAY_SIZE(eukrea_cpuimx35_pads));
 167
 168         imx35_add_fec(NULL);
 169         imx35_add_imx2_wdt();
 170
 171         imx35_add_imx_uart0(&uart_pdata);
 172         imx35_add_mxc_nand(&eukrea_cpuimx35_nand_board_info);
 173
 174         eukrea_cpuimx35_i2c_devices[1].irq = gpio_to_irq(TSC2007_IRQGPIO);
 175         i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
 176                         ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
 177         imx35_add_imx_i2c0(&eukrea_cpuimx35_i2c0_data);
 178
 179         if (otg_mode_host)
 180                 imx35_add_mxc_ehci_otg(&otg_pdata);
 181         else
 182                 imx35_add_fsl_usb2_udc(&otg_device_pdata);
 183
 184         imx35_add_mxc_ehci_hs(&usbh1_pdata);
 185
 186 #ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
 187         eukrea_mbimxsd35_baseboard_init();
 188 #endif
 189 }
 190
 191 static void __init eukrea_cpuimx35_timer_init(void)
 192 {
 193         mx35_clocks_init();
 194 }
 195
 196 MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
 197         /* Maintainer: Eukrea Electromatique */
 198         .atag_offset = 0x100,
 199         .map_io = mx35_map_io,
 200         .init_early = imx35_init_early,
 201         .init_irq = mx35_init_irq,
 202         .handle_irq = imx35_handle_irq,
 203         .init_time      = eukrea_cpuimx35_timer_init,
 204         .init_machine = eukrea_cpuimx35_init,
 205         .restart        = mxc_restart,
 206 MACHINE_END