arch/arm/mach-mx3/mach-mx35_3ds.c

   1 /*
   2  * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  * Copyright (C) 2009 Marc Kleine-Budde, Pengutronix
   4  *
   5  * Author: Fabio Estevam <fabio.estevam@freescale.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  */
  17
  18 /*
  19  * This machine is known as:
  20  *  - i.MX35 3-Stack Development System
  21  *  - i.MX35 Platform Development Kit (i.MX35 PDK)
  22  */
  23
  24 #include <linux/types.h>
  25 #include <linux/init.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/memory.h>
  28 #include <linux/gpio.h>
  29 #include <linux/usb/otg.h>
  30
  31 #include <linux/mtd/physmap.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/time.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <mach/hardware.h>
  39 #include <mach/common.h>
  40 #include <mach/iomux-mx35.h>
  41 #include <mach/irqs.h>
  42 #include <mach/3ds_debugboard.h>
  43
  44 #include "devices-imx35.h"
  45 #include "devices.h"
  46
  47 #define EXPIO_PARENT_INT        (MXC_INTERNAL_IRQS + GPIO_PORTA + 1)
  48
  49 static const struct imxuart_platform_data uart_pdata __initconst = {
  50         .flags = IMXUART_HAVE_RTSCTS,
  51 };
  52
  53 static struct physmap_flash_data mx35pdk_flash_data = {
  54         .width  = 2,
  55 };
  56
  57 static struct resource mx35pdk_flash_resource = {
  58         .start  = MX35_CS0_BASE_ADDR,
  59         .end    = MX35_CS0_BASE_ADDR + SZ_64M - 1,
  60         .flags  = IORESOURCE_MEM,
  61 };
  62
  63 static struct platform_device mx35pdk_flash = {
  64         .name   = "physmap-flash",
  65         .id     = 0,
  66         .dev    = {
  67                 .platform_data  = &mx35pdk_flash_data,
  68         },
  69         .resource = &mx35pdk_flash_resource,
  70         .num_resources = 1,
  71 };
  72
  73 static const struct mxc_nand_platform_data mx35pdk_nand_board_info __initconst = {
  74         .width = 1,
  75         .hw_ecc = 1,
  76         .flash_bbt = 1,
  77 };
  78
  79 static struct platform_device *devices[] __initdata = {
  80         &mx35pdk_flash,
  81 };
  82
  83 static iomux_v3_cfg_t mx35pdk_pads[] = {
  84         /* UART1 */
  85         MX35_PAD_CTS1__UART1_CTS,
  86         MX35_PAD_RTS1__UART1_RTS,
  87         MX35_PAD_TXD1__UART1_TXD_MUX,
  88         MX35_PAD_RXD1__UART1_RXD_MUX,
  89         /* FEC */
  90         MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
  91         MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
  92         MX35_PAD_FEC_RX_DV__FEC_RX_DV,
  93         MX35_PAD_FEC_COL__FEC_COL,
  94         MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
  95         MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
  96         MX35_PAD_FEC_TX_EN__FEC_TX_EN,
  97         MX35_PAD_FEC_MDC__FEC_MDC,
  98         MX35_PAD_FEC_MDIO__FEC_MDIO,
  99         MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
 100         MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
 101         MX35_PAD_FEC_CRS__FEC_CRS,
 102         MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
 103         MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
 104         MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
 105         MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
 106         MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
 107         MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
 108         /* USBOTG */
 109         MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
 110         MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
 111         /* USBH1 */
 112         MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
 113         MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
 114         /* SDCARD */
 115         MX35_PAD_SD1_CMD__ESDHC1_CMD,
 116         MX35_PAD_SD1_CLK__ESDHC1_CLK,
 117         MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
 118         MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 119         MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 120         MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
 121 };
 122
 123 static int mx35_3ds_otg_init(struct platform_device *pdev)
 124 {
 125         return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
 126 }
 127
 128 /* OTG config */
 129 static const struct fsl_usb2_platform_data usb_otg_pdata __initconst = {
 130         .operating_mode = FSL_USB2_DR_DEVICE,
 131         .phy_mode       = FSL_USB2_PHY_UTMI_WIDE,
 132 };
 133
 134 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 135         .init   = mx35_3ds_otg_init,
 136         .portsc = MXC_EHCI_MODE_UTMI,
 137 };
 138
 139 static int mx35_3ds_usbh_init(struct platform_device *pdev)
 140 {
 141         return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
 142                           MXC_EHCI_INTERNAL_PHY);
 143 }
 144
 145 /* USB HOST config */
 146 static const struct mxc_usbh_platform_data usb_host_pdata __initconst = {
 147         .init           = mx35_3ds_usbh_init,
 148         .portsc         = MXC_EHCI_MODE_SERIAL,
 149 };
 150
 151 static int otg_mode_host;
 152
 153 static int __init mx35_3ds_otg_mode(char *options)
 154 {
 155         if (!strcmp(options, "host"))
 156                 otg_mode_host = 1;
 157         else if (!strcmp(options, "device"))
 158                 otg_mode_host = 0;
 159         else
 160                 pr_info("otg_mode neither \"host\" nor \"device\". "
 161                         "Defaulting to device\n");
 162         return 0;
 163 }
 164 __setup("otg_mode=", mx35_3ds_otg_mode);
 165
 166 /*
 167  * Board specific initialization.
 168  */
 169 static void __init mxc_board_init(void)
 170 {
 171         mxc_iomux_v3_setup_multiple_pads(mx35pdk_pads, ARRAY_SIZE(mx35pdk_pads));
 172
 173         imx35_add_fec(NULL);
 174         imx35_add_imx2_wdt(NULL);
 175         platform_add_devices(devices, ARRAY_SIZE(devices));
 176
 177         imx35_add_imx_uart0(&uart_pdata);
 178
 179         if (otg_mode_host)
 180                 imx35_add_mxc_ehci_otg(&otg_pdata);
 181
 182         imx35_add_mxc_ehci_hs(&usb_host_pdata);
 183
 184         if (!otg_mode_host)
 185                 imx35_add_fsl_usb2_udc(&usb_otg_pdata);
 186
 187         imx35_add_mxc_nand(&mx35pdk_nand_board_info);
 188         imx35_add_sdhci_esdhc_imx(0, NULL);
 189
 190         if (mxc_expio_init(MX35_CS5_BASE_ADDR, EXPIO_PARENT_INT))
 191                 pr_warn("Init of the debugboard failed, all "
 192                                 "devices on the debugboard are unusable.\n");
 193 }
 194
 195 static void __init mx35pdk_timer_init(void)
 196 {
 197         mx35_clocks_init();
 198 }
 199
 200 struct sys_timer mx35pdk_timer = {
 201         .init   = mx35pdk_timer_init,
 202 };
 203
 204 MACHINE_START(MX35_3DS, "Freescale MX35PDK")
 205         /* Maintainer: Freescale Semiconductor, Inc */
 206         .boot_params = MX3x_PHYS_OFFSET + 0x100,
 207         .map_io = mx35_map_io,
 208         .init_early = imx35_init_early,
 209         .init_irq = mx35_init_irq,
 210         .timer = &mx35pdk_timer,
 211         .init_machine = mxc_board_init,
 212 MACHINE_END