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 static unsigned int mx31lilly_pins[] __initdata = {
  60         MX31_PIN_CTS1__CTS1,
  61         MX31_PIN_RTS1__RTS1,
  62         MX31_PIN_TXD1__TXD1,
  63         MX31_PIN_RXD1__RXD1,
  64         MX31_PIN_CTS2__CTS2,
  65         MX31_PIN_RTS2__RTS2,
  66         MX31_PIN_TXD2__TXD2,
  67         MX31_PIN_RXD2__RXD2,
  68         MX31_PIN_CSPI3_MOSI__RXD3,
  69         MX31_PIN_CSPI3_MISO__TXD3,
  70         MX31_PIN_CSPI3_SCLK__RTS3,
  71         MX31_PIN_CSPI3_SPI_RDY__CTS3,
  72 };
  73
  74 /* UART */
  75 static const struct imxuart_platform_data uart_pdata __initconst = {
  76         .flags = IMXUART_HAVE_RTSCTS,
  77 };
  78
  79 /* SMSC ethernet support */
  80
  81 static struct resource smsc91x_resources[] = {
  82         {
  83                 .start  = MX31_CS4_BASE_ADDR,
  84                 .end    = MX31_CS4_BASE_ADDR + 0xffff,
  85                 .flags  = IORESOURCE_MEM,
  86         },
  87         {
  88                 /* irq number is run-time assigned */
  89                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  90         }
  91 };
  92
  93 static struct smsc911x_platform_config smsc911x_config = {
  94         .phy_interface  = PHY_INTERFACE_MODE_MII,
  95         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  96         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  97         .flags          = SMSC911X_USE_32BIT |
  98                           SMSC911X_SAVE_MAC_ADDRESS |
  99                           SMSC911X_FORCE_INTERNAL_PHY,
 100 };
 101
 102 static struct platform_device smsc91x_device = {
 103         .name           = "smsc911x",
 104         .id             = -1,
 105         .num_resources  = ARRAY_SIZE(smsc91x_resources),
 106         .resource       = smsc91x_resources,
 107         .dev            = {
 108                 .platform_data = &smsc911x_config,
 109         }
 110 };
 111
 112 /* NOR flash */
 113 static struct physmap_flash_data nor_flash_data = {
 114         .width  = 2,
 115 };
 116
 117 static struct resource nor_flash_resource = {
 118         .start  = 0xa0000000,
 119         .end    = 0xa1ffffff,
 120         .flags  = IORESOURCE_MEM,
 121 };
 122
 123 static struct platform_device physmap_flash_device = {
 124         .name   = "physmap-flash",
 125         .id     = 0,
 126         .dev    = {
 127                 .platform_data  = &nor_flash_data,
 128         },
 129         .resource = &nor_flash_resource,
 130         .num_resources = 1,
 131 };
 132
 133 /* USB */
 134
 135 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 136                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 137
 138 static int usbh1_init(struct platform_device *pdev)
 139 {
 140         int pins[] = {
 141                 MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
 142                 MX31_PIN_CSPI1_MISO__USBH1_RXDP,
 143                 MX31_PIN_CSPI1_SS0__USBH1_TXDM,
 144                 MX31_PIN_CSPI1_SS1__USBH1_TXDP,
 145                 MX31_PIN_CSPI1_SS2__USBH1_RCV,
 146                 MX31_PIN_CSPI1_SCLK__USBH1_OEB,
 147                 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
 148         };
 149
 150         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
 151
 152         mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
 153         mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
 154         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
 155         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
 156         mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
 157         mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
 158         mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
 159
 160         mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
 161
 162         mdelay(10);
 163
 164         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 165                         MXC_EHCI_INTERFACE_SINGLE_UNI);
 166 }
 167
 168 static int usbh2_init(struct platform_device *pdev)
 169 {
 170         int pins[] = {
 171                 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
 172                 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
 173                 MX31_PIN_USBH2_CLK__USBH2_CLK,
 174                 MX31_PIN_USBH2_DIR__USBH2_DIR,
 175                 MX31_PIN_USBH2_NXT__USBH2_NXT,
 176                 MX31_PIN_USBH2_STP__USBH2_STP,
 177         };
 178
 179         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
 180
 181         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 182         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 183         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 184         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 185         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 186         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 187         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 188         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 189         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 190         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 191         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 192         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 193
 194         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 195
 196         /* chip select */
 197         mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
 198                                 "USBH2_CS");
 199         gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
 200         gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
 201
 202         mdelay(10);
 203
 204         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 205 }
 206
 207 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 208         .init   = usbh1_init,
 209         .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
 210 };
 211
 212 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 213         .init   = usbh2_init,
 214         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 215 };
 216
 217 static void __init lilly1131_usb_init(void)
 218 {
 219         imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
 220
 221         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 222                         ULPI_OTG_DRVVBUS_EXT);
 223         if (usbh2_pdata.otg)
 224                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 225 }
 226
 227 /* SPI */
 228
 229 static const struct spi_imx_master spi0_pdata __initconst = {
 230         .num_chipselect = 3,
 231 };
 232
 233 static const struct spi_imx_master spi1_pdata __initconst = {
 234         .num_chipselect = 3,
 235 };
 236
 237 static struct mc13xxx_platform_data mc13783_pdata __initdata = {
 238         .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
 239 };
 240
 241 static struct spi_board_info mc13783_dev __initdata = {
 242         .modalias       = "mc13783",
 243         .max_speed_hz   = 1000000,
 244         .bus_num        = 1,
 245         .chip_select    = 0,
 246         .platform_data  = &mc13783_pdata,
 247         /* irq number is run-time assigned */
 248 };
 249
 250 static struct platform_device *devices[] __initdata = {
 251         &smsc91x_device,
 252         &physmap_flash_device,
 253 };
 254
 255 static int mx31lilly_baseboard;
 256 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 257
 258 static struct regulator_consumer_supply dummy_supplies[] = {
 259         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
 260         REGULATOR_SUPPLY("vddvario", "smsc911x"),
 261 };
 262
 263 static void __init mx31lilly_board_init(void)
 264 {
 265         imx31_soc_init();
 266
 267         mxc_iomux_setup_multiple_pins(mx31lilly_pins,
 268                                       ARRAY_SIZE(mx31lilly_pins), "mx31lily");
 269
 270         imx31_add_imx_uart0(&uart_pdata);
 271         imx31_add_imx_uart1(&uart_pdata);
 272         imx31_add_imx_uart2(&uart_pdata);
 273
 274         mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
 275
 276         /* SPI */
 277         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
 278         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
 279         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
 280         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
 281         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
 282         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
 283         mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
 284
 285         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
 286         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
 287         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
 288         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
 289         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
 290         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
 291         mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
 292
 293         imx31_add_spi_imx0(&spi0_pdata);
 294         imx31_add_spi_imx1(&spi1_pdata);
 295
 296         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 297 }
 298
 299 static void __init mx31lilly_late_init(void)
 300 {
 301         if (mx31lilly_baseboard == MX31LILLY_DB)
 302                 mx31lilly_db_init();
 303
 304         mc13783_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 305         spi_register_board_info(&mc13783_dev, 1);
 306
 307         smsc91x_resources[1].start =
 308                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
 309         smsc91x_resources[1].end =
 310                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
 311         platform_add_devices(devices, ARRAY_SIZE(devices));
 312
 313         /* USB */
 314         lilly1131_usb_init();
 315 }
 316
 317 static void __init mx31lilly_timer_init(void)
 318 {
 319         mx31_clocks_init(26000000);
 320 }
 321
 322 MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
 323         .atag_offset = 0x100,
 324         .map_io = mx31_map_io,
 325         .init_early = imx31_init_early,
 326         .init_irq = mx31_init_irq,
 327         .init_time      = mx31lilly_timer_init,
 328         .init_machine   = mx31lilly_board_init,
 329         .init_late      = mx31lilly_late_init,
 330         .restart        = mxc_restart,
 331 MACHINE_END