arch/arm/mach-imx/mach-mx31lilly.c

   1 /*
   2  *  LILLY-1131 module support
   3  *
   4  *    Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
   5  *
   6  *  based on code for other MX31 boards,
   7  *
   8  *    Copyright 2005-2007 Freescale Semiconductor
   9  *    Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
  10  *    Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/init.h>
  25 #include <linux/clk.h>
  26 #include <linux/gpio.h>
  27 #include <linux/delay.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/moduleparam.h>
  31 #include <linux/smsc911x.h>
  32 #include <linux/mtd/physmap.h>
  33 #include <linux/spi/spi.h>
  34 #include <linux/mfd/mc13783.h>
  35 #include <linux/usb/otg.h>
  36 #include <linux/usb/ulpi.h>
  37
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/time.h>
  41 #include <asm/mach/map.h>
  42
  43 #include <mach/hardware.h>
  44 #include <mach/common.h>
  45 #include <mach/iomux-mx3.h>
  46 #include <mach/board-mx31lilly.h>
  47 #include <mach/ulpi.h>
  48
  49 #include "devices-imx31.h"
  50
  51 /*
  52  * This file contains module-specific initialization routines for LILLY-1131.
  53  * Initialization of peripherals found on the baseboard is implemented in the
  54  * appropriate baseboard support code.
  55  */
  56
  57 /* SMSC ethernet support */
  58
  59 static struct resource smsc91x_resources[] = {
  60         {
  61                 .start  = MX31_CS4_BASE_ADDR,
  62                 .end    = MX31_CS4_BASE_ADDR + 0xffff,
  63                 .flags  = IORESOURCE_MEM,
  64         },
  65         {
  66                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  67                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  68                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  69         }
  70 };
  71
  72 static struct smsc911x_platform_config smsc911x_config = {
  73         .phy_interface  = PHY_INTERFACE_MODE_MII,
  74         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  75         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  76         .flags          = SMSC911X_USE_32BIT |
  77                           SMSC911X_SAVE_MAC_ADDRESS |
  78                           SMSC911X_FORCE_INTERNAL_PHY,
  79 };
  80
  81 static struct platform_device smsc91x_device = {
  82         .name           = "smsc911x",
  83         .id             = -1,
  84         .num_resources  = ARRAY_SIZE(smsc91x_resources),
  85         .resource       = smsc91x_resources,
  86         .dev            = {
  87                 .platform_data = &smsc911x_config,
  88         }
  89 };
  90
  91 /* NOR flash */
  92 static struct physmap_flash_data nor_flash_data = {
  93         .width  = 2,
  94 };
  95
  96 static struct resource nor_flash_resource = {
  97         .start  = 0xa0000000,
  98         .end    = 0xa1ffffff,
  99         .flags  = IORESOURCE_MEM,
 100 };
 101
 102 static struct platform_device physmap_flash_device = {
 103         .name   = "physmap-flash",
 104         .id     = 0,
 105         .dev    = {
 106                 .platform_data  = &nor_flash_data,
 107         },
 108         .resource = &nor_flash_resource,
 109         .num_resources = 1,
 110 };
 111
 112 /* USB */
 113
 114 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 115                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 116
 117 static int usbh1_init(struct platform_device *pdev)
 118 {
 119         int pins[] = {
 120                 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
 121                 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
 122                 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
 123                 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
 124                 MX31_PIN_CSPI1_SS2__USBH1_RCV,
 125                 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
 126                 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
 127         };
 128
 129         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
 130
 131         mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
 132         mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
 133         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
 134         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
 135         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
 136         mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
 137         mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
 138
 139         mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
 140
 141         mdelay(10);
 142
 143         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 144                         MXC_EHCI_INTERFACE_SINGLE_UNI);
 145 }
 146
 147 static int usbh2_init(struct platform_device *pdev)
 148 {
 149         int pins[] = {
 150                 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
 151                 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
 152                 MX31_PIN_USBH2_CLK__USBH2_CLK,
 153                 MX31_PIN_USBH2_DIR__USBH2_DIR,
 154                 MX31_PIN_USBH2_NXT__USBH2_NXT,
 155                 MX31_PIN_USBH2_STP__USBH2_STP,
 156         };
 157
 158         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
 159
 160         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 161         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 162         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 163         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 164         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 165         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 166         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 167         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 168         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 169         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 170         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 171         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 172
 173         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 174
 175         /* chip select */
 176         mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
 177                                 "USBH2_CS");
 178         gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
 179         gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
 180
 181         mdelay(10);
 182
 183         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 184 }
 185
 186 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 187         .init   = usbh1_init,
 188         .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
 189 };
 190
 191 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 192         .init   = usbh2_init,
 193         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 194 };
 195
 196 static void __init lilly1131_usb_init(void)
 197 {
 198         imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
 199
 200         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 201                         ULPI_OTG_DRVVBUS_EXT);
 202         if (usbh2_pdata.otg)
 203                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 204 }
 205
 206 /* SPI */
 207
 208 static int spi_internal_chipselect[] = {
 209         MXC_SPI_CS(0),
 210         MXC_SPI_CS(1),
 211         MXC_SPI_CS(2),
 212 };
 213
 214 static const struct spi_imx_master spi0_pdata __initconst = {
 215         .chipselect = spi_internal_chipselect,
 216         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 217 };
 218
 219 static const struct spi_imx_master spi1_pdata __initconst = {
 220         .chipselect = spi_internal_chipselect,
 221         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 222 };
 223
 224 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
 225         .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
 226 };
 227
 228 static struct spi_board_info mc13783_dev __initdata = {
 229         .modalias       = "mc13783",
 230         .max_speed_hz   = 1000000,
 231         .bus_num        = 1,
 232         .chip_select    = 0,
 233         .platform_data  = &mc13783_pdata,
 234         .irq            = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
 235 };
 236
 237 static struct platform_device *devices[] __initdata = {
 238         &smsc91x_device,
 239         &physmap_flash_device,
 240 };
 241
 242 static int mx31lilly_baseboard;
 243 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 244
 245 static void __init mx31lilly_board_init(void)
 246 {
 247         imx31_soc_init();
 248
 249         switch (mx31lilly_baseboard) {
 250         case MX31LILLY_NOBOARD:
 251                 break;
 252         case MX31LILLY_DB:
 253                 mx31lilly_db_init();
 254                 break;
 255         default:
 256                 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
 257                         mx31lilly_baseboard);
 258         }
 259
 260         mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
 261
 262         /* SPI */
 263         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
 264         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
 265         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
 266         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
 267         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
 268         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
 269         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
 270
 271         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
 272         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
 273         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
 274         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
 275         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
 276         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
 277         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
 278
 279         imx31_add_spi_imx0(&spi0_pdata);
 280         imx31_add_spi_imx1(&spi1_pdata);
 281         spi_register_board_info(&mc13783_dev, 1);
 282
 283         platform_add_devices(devices, ARRAY_SIZE(devices));
 284
 285         /* USB */
 286         lilly1131_usb_init();
 287 }
 288
 289 static void __init mx31lilly_timer_init(void)
 290 {
 291         mx31_clocks_init(26000000);
 292 }
 293
 294 static struct sys_timer mx31lilly_timer = {
 295         .init   = mx31lilly_timer_init,
 296 };
 297
 298 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
 299         .atag_offset = 0x100,
 300         .map_io = mx31_map_io,
 301         .init_early = imx31_init_early,
 302         .init_irq = mx31_init_irq,
 303         .handle_irq = imx31_handle_irq,
 304         .timer = &mx31lilly_timer,
 305         .init_machine = mx31lilly_board_init,
 306         .restart        = mxc_restart,
 307 MACHINE_END