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/smsc911x.h>
  31 #include <linux/mtd/physmap.h>
  32 #include <linux/spi/spi.h>
  33 #include <linux/mfd/mc13783.h>
  34 #include <linux/usb/otg.h>
  35 #include <linux/usb/ulpi.h>
  36
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/time.h>
  40 #include <asm/mach/map.h>
  41
  42 #include <mach/hardware.h>
  43 #include <mach/common.h>
  44 #include <mach/iomux-mx3.h>
  45 #include <mach/board-mx31lilly.h>
  46 #include <mach/ulpi.h>
  47
  48 #include "devices-imx31.h"
  49
  50 /*
  51  * This file contains module-specific initialization routines for LILLY-1131.
  52  * Initialization of peripherals found on the baseboard is implemented in the
  53  * appropriate baseboard support code.
  54  */
  55
  56 /* SMSC ethernet support */
  57
  58 static struct resource smsc91x_resources[] = {
  59         {
  60                 .start  = MX31_CS4_BASE_ADDR,
  61                 .end    = MX31_CS4_BASE_ADDR + 0xffff,
  62                 .flags  = IORESOURCE_MEM,
  63         },
  64         {
  65                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  66                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  67                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  68         }
  69 };
  70
  71 static struct smsc911x_platform_config smsc911x_config = {
  72         .phy_interface  = PHY_INTERFACE_MODE_MII,
  73         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  74         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  75         .flags          = SMSC911X_USE_32BIT |
  76                           SMSC911X_SAVE_MAC_ADDRESS |
  77                           SMSC911X_FORCE_INTERNAL_PHY,
  78 };
  79
  80 static struct platform_device smsc91x_device = {
  81         .name           = "smsc911x",
  82         .id             = -1,
  83         .num_resources  = ARRAY_SIZE(smsc91x_resources),
  84         .resource       = smsc91x_resources,
  85         .dev            = {
  86                 .platform_data = &smsc911x_config,
  87         }
  88 };
  89
  90 /* NOR flash */
  91 static struct physmap_flash_data nor_flash_data = {
  92         .width  = 2,
  93 };
  94
  95 static struct resource nor_flash_resource = {
  96         .start  = 0xa0000000,
  97         .end    = 0xa1ffffff,
  98         .flags  = IORESOURCE_MEM,
  99 };
 100
 101 static struct platform_device physmap_flash_device = {
 102         .name   = "physmap-flash",
 103         .id     = 0,
 104         .dev    = {
 105                 .platform_data  = &nor_flash_data,
 106         },
 107         .resource = &nor_flash_resource,
 108         .num_resources = 1,
 109 };
 110
 111 /* USB */
 112
 113 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 114                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 115
 116 static int usbh1_init(struct platform_device *pdev)
 117 {
 118         int pins[] = {
 119                 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
 120                 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
 121                 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
 122                 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
 123                 MX31_PIN_CSPI1_SS2__USBH1_RCV,
 124                 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
 125                 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
 126         };
 127
 128         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
 129
 130         mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
 131         mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
 132         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
 133         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
 134         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
 135         mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
 136         mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
 137
 138         mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
 139
 140         mdelay(10);
 141
 142         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 143                         MXC_EHCI_INTERFACE_SINGLE_UNI);
 144 }
 145
 146 static int usbh2_init(struct platform_device *pdev)
 147 {
 148         int pins[] = {
 149                 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
 150                 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
 151                 MX31_PIN_USBH2_CLK__USBH2_CLK,
 152                 MX31_PIN_USBH2_DIR__USBH2_DIR,
 153                 MX31_PIN_USBH2_NXT__USBH2_NXT,
 154                 MX31_PIN_USBH2_STP__USBH2_STP,
 155         };
 156
 157         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
 158
 159         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 160         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 161         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 162         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 163         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 164         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 165         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 166         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 167         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 168         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 169         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 170         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 171
 172         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 173
 174         /* chip select */
 175         mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
 176                                 "USBH2_CS");
 177         gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
 178         gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
 179
 180         mdelay(10);
 181
 182         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 183 }
 184
 185 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 186         .init   = usbh1_init,
 187         .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
 188 };
 189
 190 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 191         .init   = usbh2_init,
 192         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 193 };
 194
 195 static void lilly1131_usb_init(void)
 196 {
 197         imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
 198
 199         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 200                         ULPI_OTG_DRVVBUS_EXT);
 201         if (usbh2_pdata.otg)
 202                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 203 }
 204
 205 /* SPI */
 206
 207 static int spi_internal_chipselect[] = {
 208         MXC_SPI_CS(0),
 209         MXC_SPI_CS(1),
 210         MXC_SPI_CS(2),
 211 };
 212
 213 static const struct spi_imx_master spi0_pdata __initconst = {
 214         .chipselect = spi_internal_chipselect,
 215         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 216 };
 217
 218 static const struct spi_imx_master spi1_pdata __initconst = {
 219         .chipselect = spi_internal_chipselect,
 220         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 221 };
 222
 223 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
 224         .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
 225 };
 226
 227 static struct spi_board_info mc13783_dev __initdata = {
 228         .modalias       = "mc13783",
 229         .max_speed_hz   = 1000000,
 230         .bus_num        = 1,
 231         .chip_select    = 0,
 232         .platform_data  = &mc13783_pdata,
 233         .irq            = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
 234 };
 235
 236 static struct platform_device *devices[] __initdata = {
 237         &smsc91x_device,
 238         &physmap_flash_device,
 239 };
 240
 241 static int mx31lilly_baseboard;
 242 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 243
 244 static void __init mx31lilly_board_init(void)
 245 {
 246         imx31_soc_init();
 247
 248         switch (mx31lilly_baseboard) {
 249         case MX31LILLY_NOBOARD:
 250                 break;
 251         case MX31LILLY_DB:
 252                 mx31lilly_db_init();
 253                 break;
 254         default:
 255                 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
 256                         mx31lilly_baseboard);
 257         }
 258
 259         mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
 260
 261         /* SPI */
 262         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
 263         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
 264         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
 265         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
 266         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
 267         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
 268         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
 269
 270         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
 271         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
 272         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
 273         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
 274         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
 275         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
 276         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
 277
 278         imx31_add_spi_imx0(&spi0_pdata);
 279         imx31_add_spi_imx1(&spi1_pdata);
 280         spi_register_board_info(&mc13783_dev, 1);
 281
 282         platform_add_devices(devices, ARRAY_SIZE(devices));
 283
 284         /* USB */
 285         lilly1131_usb_init();
 286 }
 287
 288 static void __init mx31lilly_timer_init(void)
 289 {
 290         mx31_clocks_init(26000000);
 291 }
 292
 293 static struct sys_timer mx31lilly_timer = {
 294         .init   = mx31lilly_timer_init,
 295 };
 296
 297 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
 298         .boot_params = MX3x_PHYS_OFFSET + 0x100,
 299         .map_io = mx31_map_io,
 300         .init_early = imx31_init_early,
 301         .init_irq = mx31_init_irq,
 302         .timer = &mx31lilly_timer,
 303         .init_machine = mx31lilly_board_init,
 304 MACHINE_END