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 #include <linux/regulator/machine.h>
  38 #include <linux/regulator/fixed.h>
  39
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/time.h>
  43 #include <asm/mach/map.h>
  44
  45 #include "board-mx31lilly.h"
  46 #include "common.h"
  47 #include "devices-imx31.h"
  48 #include "ehci.h"
  49 #include "hardware.h"
  50 #include "iomux-mx3.h"
  51 #include "ulpi.h"
  52
  53 /*
  54  * This file contains module-specific initialization routines for LILLY-1131.
  55  * Initialization of peripherals found on the baseboard is implemented in the
  56  * appropriate baseboard support code.
  57  */
  58
  59 /* SMSC ethernet support */
  60
  61 static struct resource smsc91x_resources[] = {
  62         {
  63                 .start  = MX31_CS4_BASE_ADDR,
  64                 .end    = MX31_CS4_BASE_ADDR + 0xffff,
  65                 .flags  = IORESOURCE_MEM,
  66         },
  67         {
  68                 /* irq number is run-time assigned */
  69                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  70         }
  71 };
  72
  73 static struct smsc911x_platform_config smsc911x_config = {
  74         .phy_interface  = PHY_INTERFACE_MODE_MII,
  75         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  76         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  77         .flags          = SMSC911X_USE_32BIT |
  78                           SMSC911X_SAVE_MAC_ADDRESS |
  79                           SMSC911X_FORCE_INTERNAL_PHY,
  80 };
  81
  82 static struct platform_device smsc91x_device = {
  83         .name           = "smsc911x",
  84         .id             = -1,
  85         .num_resources  = ARRAY_SIZE(smsc91x_resources),
  86         .resource       = smsc91x_resources,
  87         .dev            = {
  88                 .platform_data = &smsc911x_config,
  89         }
  90 };
  91
  92 /* NOR flash */
  93 static struct physmap_flash_data nor_flash_data = {
  94         .width  = 2,
  95 };
  96
  97 static struct resource nor_flash_resource = {
  98         .start  = 0xa0000000,
  99         .end    = 0xa1ffffff,
 100         .flags  = IORESOURCE_MEM,
 101 };
 102
 103 static struct platform_device physmap_flash_device = {
 104         .name   = "physmap-flash",
 105         .id     = 0,
 106         .dev    = {
 107                 .platform_data  = &nor_flash_data,
 108         },
 109         .resource = &nor_flash_resource,
 110         .num_resources = 1,
 111 };
 112
 113 /* USB */
 114
 115 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 116                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 117
 118 static int usbh1_init(struct platform_device *pdev)
 119 {
 120         int pins[] = {
 121                 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
 122                 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
 123                 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
 124                 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
 125                 MX31_PIN_CSPI1_SS2__USBH1_RCV,
 126                 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
 127                 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
 128         };
 129
 130         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
 131
 132         mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
 133         mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
 134         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
 135         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
 136         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
 137         mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
 138         mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
 139
 140         mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
 141
 142         mdelay(10);
 143
 144         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 145                         MXC_EHCI_INTERFACE_SINGLE_UNI);
 146 }
 147
 148 static int usbh2_init(struct platform_device *pdev)
 149 {
 150         int pins[] = {
 151                 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
 152                 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
 153                 MX31_PIN_USBH2_CLK__USBH2_CLK,
 154                 MX31_PIN_USBH2_DIR__USBH2_DIR,
 155                 MX31_PIN_USBH2_NXT__USBH2_NXT,
 156                 MX31_PIN_USBH2_STP__USBH2_STP,
 157         };
 158
 159         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
 160
 161         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 162         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 163         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 164         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 165         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 166         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 167         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 168         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 169         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 170         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 171         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 172         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 173
 174         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 175
 176         /* chip select */
 177         mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
 178                                 "USBH2_CS");
 179         gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
 180         gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
 181
 182         mdelay(10);
 183
 184         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 185 }
 186
 187 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 188         .init   = usbh1_init,
 189         .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
 190 };
 191
 192 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 193         .init   = usbh2_init,
 194         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 195 };
 196
 197 static void __init lilly1131_usb_init(void)
 198 {
 199         imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
 200
 201         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 202                         ULPI_OTG_DRVVBUS_EXT);
 203         if (usbh2_pdata.otg)
 204                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 205 }
 206
 207 /* SPI */
 208
 209 static int spi_internal_chipselect[] = {
 210         MXC_SPI_CS(0),
 211         MXC_SPI_CS(1),
 212         MXC_SPI_CS(2),
 213 };
 214
 215 static const struct spi_imx_master spi0_pdata __initconst = {
 216         .chipselect = spi_internal_chipselect,
 217         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 218 };
 219
 220 static const struct spi_imx_master spi1_pdata __initconst = {
 221         .chipselect = spi_internal_chipselect,
 222         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 223 };
 224
 225 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
 226         .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
 227 };
 228
 229 static struct spi_board_info mc13783_dev __initdata = {
 230         .modalias       = "mc13783",
 231         .max_speed_hz   = 1000000,
 232         .bus_num        = 1,
 233         .chip_select    = 0,
 234         .platform_data  = &mc13783_pdata,
 235         /* irq number is run-time assigned */
 236 };
 237
 238 static struct platform_device *devices[] __initdata = {
 239         &smsc91x_device,
 240         &physmap_flash_device,
 241 };
 242
 243 static int mx31lilly_baseboard;
 244 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 245
 246 static struct regulator_consumer_supply dummy_supplies[] = {
 247         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
 248         REGULATOR_SUPPLY("vddvario", "smsc911x"),
 249 };
 250
 251 static void __init mx31lilly_board_init(void)
 252 {
 253         imx31_soc_init();
 254
 255         switch (mx31lilly_baseboard) {
 256         case MX31LILLY_NOBOARD:
 257                 break;
 258         case MX31LILLY_DB:
 259                 mx31lilly_db_init();
 260                 break;
 261         default:
 262                 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
 263                         mx31lilly_baseboard);
 264         }
 265
 266         mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
 267
 268         /* SPI */
 269         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
 270         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
 271         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
 272         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
 273         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
 274         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
 275         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
 276
 277         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
 278         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
 279         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
 280         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
 281         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
 282         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
 283         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
 284
 285         imx31_add_spi_imx0(&spi0_pdata);
 286         imx31_add_spi_imx1(&spi1_pdata);
 287         mc13783_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 288         spi_register_board_info(&mc13783_dev, 1);
 289
 290         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 291
 292         smsc91x_resources[1].start =
 293                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
 294         smsc91x_resources[1].end =
 295                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
 296         platform_add_devices(devices, ARRAY_SIZE(devices));
 297
 298         /* USB */
 299         lilly1131_usb_init();
 300 }
 301
 302 static void __init mx31lilly_timer_init(void)
 303 {
 304         mx31_clocks_init(26000000);
 305 }
 306
 307 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
 308         .atag_offset = 0x100,
 309         .map_io = mx31_map_io,
 310         .init_early = imx31_init_early,
 311         .init_irq = mx31_init_irq,
 312         .init_time      = mx31lilly_timer_init,
 313         .init_machine = mx31lilly_board_init,
 314         .restart        = mxc_restart,
 315 MACHINE_END