release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-imx/mach-cpuimx27.c

   1 /*
   2  * Copyright (C) 2009 Eric Benard - eric@eukrea.com
   3  *
   4  * Based on pcm038.c which is :
   5  * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
   6  * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  20  * MA 02110-1301, USA.
  21  */
  22
  23 #include <linux/i2c.h>
  24 #include <linux/io.h>
  25 #include <linux/mtd/plat-ram.h>
  26 #include <linux/mtd/physmap.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/serial_8250.h>
  29 #include <linux/usb/otg.h>
  30 #include <linux/usb/ulpi.h>
  31 #include <linux/fsl_devices.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/time.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <mach/eukrea-baseboards.h>
  39 #include <mach/common.h>
  40 #include <mach/hardware.h>
  41 #include <mach/iomux-mx27.h>
  42 #include <mach/mxc_nand.h>
  43 #include <mach/mxc_ehci.h>
  44 #include <mach/ulpi.h>
  45
  46 #include "devices-imx27.h"
  47 #include "devices.h"
  48
  49 static int eukrea_cpuimx27_pins[] = {
  50         /* UART1 */
  51         PE12_PF_UART1_TXD,
  52         PE13_PF_UART1_RXD,
  53         PE14_PF_UART1_CTS,
  54         PE15_PF_UART1_RTS,
  55         /* UART4 */
  56 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
  57         PB26_AF_UART4_RTS,
  58         PB28_AF_UART4_TXD,
  59         PB29_AF_UART4_CTS,
  60         PB31_AF_UART4_RXD,
  61 #endif
  62         /* FEC */
  63         PD0_AIN_FEC_TXD0,
  64         PD1_AIN_FEC_TXD1,
  65         PD2_AIN_FEC_TXD2,
  66         PD3_AIN_FEC_TXD3,
  67         PD4_AOUT_FEC_RX_ER,
  68         PD5_AOUT_FEC_RXD1,
  69         PD6_AOUT_FEC_RXD2,
  70         PD7_AOUT_FEC_RXD3,
  71         PD8_AF_FEC_MDIO,
  72         PD9_AIN_FEC_MDC,
  73         PD10_AOUT_FEC_CRS,
  74         PD11_AOUT_FEC_TX_CLK,
  75         PD12_AOUT_FEC_RXD0,
  76         PD13_AOUT_FEC_RX_DV,
  77         PD14_AOUT_FEC_RX_CLK,
  78         PD15_AOUT_FEC_COL,
  79         PD16_AIN_FEC_TX_ER,
  80         PF23_AIN_FEC_TX_EN,
  81         /* I2C1 */
  82         PD17_PF_I2C_DATA,
  83         PD18_PF_I2C_CLK,
  84         /* SDHC2 */
  85 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
  86         PB4_PF_SD2_D0,
  87         PB5_PF_SD2_D1,
  88         PB6_PF_SD2_D2,
  89         PB7_PF_SD2_D3,
  90         PB8_PF_SD2_CMD,
  91         PB9_PF_SD2_CLK,
  92 #endif
  93 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
  94         /* Quad UART's IRQ */
  95         GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
  96         GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
  97         GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
  98         GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
  99 #endif
 100         /* OTG */
 101         PC7_PF_USBOTG_DATA5,
 102         PC8_PF_USBOTG_DATA6,
 103         PC9_PF_USBOTG_DATA0,
 104         PC10_PF_USBOTG_DATA2,
 105         PC11_PF_USBOTG_DATA1,
 106         PC12_PF_USBOTG_DATA4,
 107         PC13_PF_USBOTG_DATA3,
 108         PE0_PF_USBOTG_NXT,
 109         PE1_PF_USBOTG_STP,
 110         PE2_PF_USBOTG_DIR,
 111         PE24_PF_USBOTG_CLK,
 112         PE25_PF_USBOTG_DATA7,
 113         /* USBH2 */
 114         PA0_PF_USBH2_CLK,
 115         PA1_PF_USBH2_DIR,
 116         PA2_PF_USBH2_DATA7,
 117         PA3_PF_USBH2_NXT,
 118         PA4_PF_USBH2_STP,
 119         PD19_AF_USBH2_DATA4,
 120         PD20_AF_USBH2_DATA3,
 121         PD21_AF_USBH2_DATA6,
 122         PD22_AF_USBH2_DATA0,
 123         PD23_AF_USBH2_DATA2,
 124         PD24_AF_USBH2_DATA1,
 125         PD26_AF_USBH2_DATA5,
 126 };
 127
 128 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
 129         .width = 2,
 130 };
 131
 132 static struct resource eukrea_cpuimx27_flash_resource = {
 133         .start = 0xc0000000,
 134         .end   = 0xc3ffffff,
 135         .flags = IORESOURCE_MEM,
 136 };
 137
 138 static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
 139         .name = "physmap-flash",
 140         .id = 0,
 141         .dev = {
 142                 .platform_data = &eukrea_cpuimx27_flash_data,
 143         },
 144         .num_resources = 1,
 145         .resource = &eukrea_cpuimx27_flash_resource,
 146 };
 147
 148 static const struct imxuart_platform_data uart_pdata __initconst = {
 149         .flags = IMXUART_HAVE_RTSCTS,
 150 };
 151
 152 static const struct mxc_nand_platform_data
 153 cpuimx27_nand_board_info __initconst = {
 154         .width = 1,
 155         .hw_ecc = 1,
 156 };
 157
 158 static struct platform_device *platform_devices[] __initdata = {
 159         &eukrea_cpuimx27_nor_mtd_device,
 160         &mxc_fec_device,
 161         &mxc_wdt,
 162         &mxc_w1_master_device,
 163 };
 164
 165 static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
 166         .bitrate = 100000,
 167 };
 168
 169 static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
 170         {
 171                 I2C_BOARD_INFO("pcf8563", 0x51),
 172         },
 173 };
 174
 175 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 176 static struct plat_serial8250_port serial_platform_data[] = {
 177         {
 178                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
 179                 .irq = IRQ_GPIOB(23),
 180                 .uartclk = 14745600,
 181                 .regshift = 1,
 182                 .iotype = UPIO_MEM,
 183                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 184         }, {
 185                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
 186                 .irq = IRQ_GPIOB(22),
 187                 .uartclk = 14745600,
 188                 .regshift = 1,
 189                 .iotype = UPIO_MEM,
 190                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 191         }, {
 192                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
 193                 .irq = IRQ_GPIOB(27),
 194                 .uartclk = 14745600,
 195                 .regshift = 1,
 196                 .iotype = UPIO_MEM,
 197                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 198         }, {
 199                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
 200                 .irq = IRQ_GPIOB(30),
 201                 .uartclk = 14745600,
 202                 .regshift = 1,
 203                 .iotype = UPIO_MEM,
 204                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 205         }, {
 206         }
 207 };
 208
 209 static struct platform_device serial_device = {
 210         .name = "serial8250",
 211         .id = 0,
 212         .dev = {
 213                 .platform_data = serial_platform_data,
 214         },
 215 };
 216 #endif
 217
 218 #if defined(CONFIG_USB_ULPI)
 219 static struct mxc_usbh_platform_data otg_pdata = {
 220         .portsc = MXC_EHCI_MODE_ULPI,
 221         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 222 };
 223
 224 static struct mxc_usbh_platform_data usbh2_pdata = {
 225         .portsc = MXC_EHCI_MODE_ULPI,
 226         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 227 };
 228 #endif
 229
 230 static struct fsl_usb2_platform_data otg_device_pdata = {
 231         .operating_mode = FSL_USB2_DR_DEVICE,
 232         .phy_mode       = FSL_USB2_PHY_ULPI,
 233 };
 234
 235 static int otg_mode_host;
 236
 237 static int __init eukrea_cpuimx27_otg_mode(char *options)
 238 {
 239         if (!strcmp(options, "host"))
 240                 otg_mode_host = 1;
 241         else if (!strcmp(options, "device"))
 242                 otg_mode_host = 0;
 243         else
 244                 pr_info("otg_mode neither \"host\" nor \"device\". "
 245                         "Defaulting to device\n");
 246         return 0;
 247 }
 248 __setup("otg_mode=", eukrea_cpuimx27_otg_mode);
 249
 250 static void __init eukrea_cpuimx27_init(void)
 251 {
 252         mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
 253                 ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
 254
 255         imx27_add_imx_uart0(&uart_pdata);
 256
 257         imx27_add_mxc_nand(&cpuimx27_nand_board_info);
 258
 259         i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
 260                                 ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
 261
 262         imx27_add_i2c_imx0(&cpuimx27_i2c1_data);
 263
 264         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 265
 266 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
 267         /* SDHC2 can be used for Wifi */
 268         mxc_register_device(&mxc_sdhc_device1, NULL);
 269 #endif
 270 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
 271         /* in which case UART4 is also used for Bluetooth */
 272         imx27_add_imx_uart3(&uart_pdata);
 273 #endif
 274
 275 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 276         platform_device_register(&serial_device);
 277 #endif
 278
 279 #if defined(CONFIG_USB_ULPI)
 280         if (otg_mode_host) {
 281                 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 282                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 283
 284                 mxc_register_device(&mxc_otg_host, &otg_pdata);
 285         }
 286
 287         usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 288                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 289
 290         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
 291 #endif
 292         if (!otg_mode_host)
 293                 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
 294
 295 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
 296         eukrea_mbimx27_baseboard_init();
 297 #endif
 298 }
 299
 300 static void __init eukrea_cpuimx27_timer_init(void)
 301 {
 302         mx27_clocks_init(26000000);
 303 }
 304
 305 static struct sys_timer eukrea_cpuimx27_timer = {
 306         .init = eukrea_cpuimx27_timer_init,
 307 };
 308
 309 MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
 310         .phys_io        = MX27_AIPI_BASE_ADDR,
 311         .io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 312         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 313         .map_io         = mx27_map_io,
 314         .init_irq       = mx27_init_irq,
 315         .init_machine   = eukrea_cpuimx27_init,
 316         .timer          = &eukrea_cpuimx27_timer,
 317 MACHINE_END