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 <mach/hardware.h>
  46 #include <mach/common.h>
  47 #include <mach/iomux-mx3.h>
  48 #include <mach/board-mx31lilly.h>
  49 #include <mach/ulpi.h>
  50
  51 #include "devices-imx31.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                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  69                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
  70                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  71         }
  72 };
  73
  74 static struct smsc911x_platform_config smsc911x_config = {
  75         .phy_interface  = PHY_INTERFACE_MODE_MII,
  76         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  77         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  78         .flags          = SMSC911X_USE_32BIT |
  79                           SMSC911X_SAVE_MAC_ADDRESS |
  80                           SMSC911X_FORCE_INTERNAL_PHY,
  81 };
  82
  83 static struct platform_device smsc91x_device = {
  84         .name           = "smsc911x",
  85         .id             = -1,
  86         .num_resources  = ARRAY_SIZE(smsc91x_resources),
  87         .resource       = smsc91x_resources,
  88         .dev            = {
  89                 .platform_data = &smsc911x_config,
  90         }
  91 };
  92
  93 /* NOR flash */
  94 static struct physmap_flash_data nor_flash_data = {
  95         .width  = 2,
  96 };
  97
  98 static struct resource nor_flash_resource = {
  99         .start  = 0xa0000000,
 100         .end    = 0xa1ffffff,
 101         .flags  = IORESOURCE_MEM,
 102 };
 103
 104 static struct platform_device physmap_flash_device = {
 105         .name   = "physmap-flash",
 106         .id     = 0,
 107         .dev    = {
 108                 .platform_data  = &nor_flash_data,
 109         },
 110         .resource = &nor_flash_resource,
 111         .num_resources = 1,
 112 };
 113
 114 /* USB */
 115
 116 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 117                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 118
 119 static int usbh1_init(struct platform_device *pdev)
 120 {
 121         int pins[] = {
 122                 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
 123                 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
 124                 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
 125                 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
 126                 MX31_PIN_CSPI1_SS2__USBH1_RCV,
 127                 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
 128                 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
 129         };
 130
 131         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
 132
 133         mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
 134         mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
 135         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
 136         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
 137         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
 138         mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
 139         mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
 140
 141         mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
 142
 143         mdelay(10);
 144
 145         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 146                         MXC_EHCI_INTERFACE_SINGLE_UNI);
 147 }
 148
 149 static int usbh2_init(struct platform_device *pdev)
 150 {
 151         int pins[] = {
 152                 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
 153                 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
 154                 MX31_PIN_USBH2_CLK__USBH2_CLK,
 155                 MX31_PIN_USBH2_DIR__USBH2_DIR,
 156                 MX31_PIN_USBH2_NXT__USBH2_NXT,
 157                 MX31_PIN_USBH2_STP__USBH2_STP,
 158         };
 159
 160         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
 161
 162         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 163         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 164         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 165         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 166         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 167         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 168         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 169         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 170         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 171         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 172         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 173         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 174
 175         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 176
 177         /* chip select */
 178         mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
 179                                 "USBH2_CS");
 180         gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
 181         gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
 182
 183         mdelay(10);
 184
 185         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 186 }
 187
 188 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 189         .init   = usbh1_init,
 190         .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
 191 };
 192
 193 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 194         .init   = usbh2_init,
 195         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 196 };
 197
 198 static void __init lilly1131_usb_init(void)
 199 {
 200         imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
 201
 202         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 203                         ULPI_OTG_DRVVBUS_EXT);
 204         if (usbh2_pdata.otg)
 205                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 206 }
 207
 208 /* SPI */
 209
 210 static int spi_internal_chipselect[] = {
 211         MXC_SPI_CS(0),
 212         MXC_SPI_CS(1),
 213         MXC_SPI_CS(2),
 214 };
 215
 216 static const struct spi_imx_master spi0_pdata __initconst = {
 217         .chipselect = spi_internal_chipselect,
 218         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 219 };
 220
 221 static const struct spi_imx_master spi1_pdata __initconst = {
 222         .chipselect = spi_internal_chipselect,
 223         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
 224 };
 225
 226 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
 227         .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
 228 };
 229
 230 static struct spi_board_info mc13783_dev __initdata = {
 231         .modalias       = "mc13783",
 232         .max_speed_hz   = 1000000,
 233         .bus_num        = 1,
 234         .chip_select    = 0,
 235         .platform_data  = &mc13783_pdata,
 236         .irq            = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
 237 };
 238
 239 static struct platform_device *devices[] __initdata = {
 240         &smsc91x_device,
 241         &physmap_flash_device,
 242 };
 243
 244 static int mx31lilly_baseboard;
 245 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 246
 247 static struct regulator_consumer_supply dummy_supplies[] = {
 248         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
 249         REGULATOR_SUPPLY("vddvario", "smsc911x"),
 250 };
 251
 252 static void __init mx31lilly_board_init(void)
 253 {
 254         imx31_soc_init();
 255
 256         switch (mx31lilly_baseboard) {
 257         case MX31LILLY_NOBOARD:
 258                 break;
 259         case MX31LILLY_DB:
 260                 mx31lilly_db_init();
 261                 break;
 262         default:
 263                 printk(KERN_ERR "Illegal mx31lilly_baseboard type %d\n",
 264                         mx31lilly_baseboard);
 265         }
 266
 267         mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
 268
 269         /* SPI */
 270         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
 271         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
 272         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
 273         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
 274         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
 275         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
 276         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
 277
 278         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
 279         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
 280         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
 281         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
 282         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
 283         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
 284         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
 285
 286         imx31_add_spi_imx0(&spi0_pdata);
 287         imx31_add_spi_imx1(&spi1_pdata);
 288         spi_register_board_info(&mc13783_dev, 1);
 289
 290         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 291
 292         platform_add_devices(devices, ARRAY_SIZE(devices));
 293
 294         /* USB */
 295         lilly1131_usb_init();
 296 }
 297
 298 static void __init mx31lilly_timer_init(void)
 299 {
 300         mx31_clocks_init(26000000);
 301 }
 302
 303 static struct sys_timer mx31lilly_timer = {
 304         .init   = mx31lilly_timer_init,
 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         .handle_irq = imx31_handle_irq,
 313         .timer = &mx31lilly_timer,
 314         .init_machine = mx31lilly_board_init,
 315         .restart        = mxc_restart,
 316 MACHINE_END