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
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/time.h>
  35 #include <asm/mach/map.h>
  36
  37 #include <mach/eukrea-baseboards.h>
  38 #include <mach/common.h>
  39 #include <mach/hardware.h>
  40 #include <mach/iomux-mx27.h>
  41 #include <mach/mxc_nand.h>
  42 #include <mach/ulpi.h>
  43
  44 #include "devices-imx27.h"
  45 #include "devices.h"
  46
  47 static const int eukrea_cpuimx27_pins[] __initconst = {
  48         /* UART1 */
  49         PE12_PF_UART1_TXD,
  50         PE13_PF_UART1_RXD,
  51         PE14_PF_UART1_CTS,
  52         PE15_PF_UART1_RTS,
  53         /* UART4 */
  54 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
  55         PB26_AF_UART4_RTS,
  56         PB28_AF_UART4_TXD,
  57         PB29_AF_UART4_CTS,
  58         PB31_AF_UART4_RXD,
  59 #endif
  60         /* FEC */
  61         PD0_AIN_FEC_TXD0,
  62         PD1_AIN_FEC_TXD1,
  63         PD2_AIN_FEC_TXD2,
  64         PD3_AIN_FEC_TXD3,
  65         PD4_AOUT_FEC_RX_ER,
  66         PD5_AOUT_FEC_RXD1,
  67         PD6_AOUT_FEC_RXD2,
  68         PD7_AOUT_FEC_RXD3,
  69         PD8_AF_FEC_MDIO,
  70         PD9_AIN_FEC_MDC,
  71         PD10_AOUT_FEC_CRS,
  72         PD11_AOUT_FEC_TX_CLK,
  73         PD12_AOUT_FEC_RXD0,
  74         PD13_AOUT_FEC_RX_DV,
  75         PD14_AOUT_FEC_RX_CLK,
  76         PD15_AOUT_FEC_COL,
  77         PD16_AIN_FEC_TX_ER,
  78         PF23_AIN_FEC_TX_EN,
  79         /* I2C1 */
  80         PD17_PF_I2C_DATA,
  81         PD18_PF_I2C_CLK,
  82         /* SDHC2 */
  83 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
  84         PB4_PF_SD2_D0,
  85         PB5_PF_SD2_D1,
  86         PB6_PF_SD2_D2,
  87         PB7_PF_SD2_D3,
  88         PB8_PF_SD2_CMD,
  89         PB9_PF_SD2_CLK,
  90 #endif
  91 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
  92         /* Quad UART's IRQ */
  93         GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
  94         GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
  95         GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
  96         GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
  97 #endif
  98         /* OTG */
  99         PC7_PF_USBOTG_DATA5,
 100         PC8_PF_USBOTG_DATA6,
 101         PC9_PF_USBOTG_DATA0,
 102         PC10_PF_USBOTG_DATA2,
 103         PC11_PF_USBOTG_DATA1,
 104         PC12_PF_USBOTG_DATA4,
 105         PC13_PF_USBOTG_DATA3,
 106         PE0_PF_USBOTG_NXT,
 107         PE1_PF_USBOTG_STP,
 108         PE2_PF_USBOTG_DIR,
 109         PE24_PF_USBOTG_CLK,
 110         PE25_PF_USBOTG_DATA7,
 111         /* USBH2 */
 112         PA0_PF_USBH2_CLK,
 113         PA1_PF_USBH2_DIR,
 114         PA2_PF_USBH2_DATA7,
 115         PA3_PF_USBH2_NXT,
 116         PA4_PF_USBH2_STP,
 117         PD19_AF_USBH2_DATA4,
 118         PD20_AF_USBH2_DATA3,
 119         PD21_AF_USBH2_DATA6,
 120         PD22_AF_USBH2_DATA0,
 121         PD23_AF_USBH2_DATA2,
 122         PD24_AF_USBH2_DATA1,
 123         PD26_AF_USBH2_DATA5,
 124 };
 125
 126 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
 127         .width = 2,
 128 };
 129
 130 static struct resource eukrea_cpuimx27_flash_resource = {
 131         .start = 0xc0000000,
 132         .end   = 0xc3ffffff,
 133         .flags = IORESOURCE_MEM,
 134 };
 135
 136 static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
 137         .name = "physmap-flash",
 138         .id = 0,
 139         .dev = {
 140                 .platform_data = &eukrea_cpuimx27_flash_data,
 141         },
 142         .num_resources = 1,
 143         .resource = &eukrea_cpuimx27_flash_resource,
 144 };
 145
 146 static const struct imxuart_platform_data uart_pdata __initconst = {
 147         .flags = IMXUART_HAVE_RTSCTS,
 148 };
 149
 150 static const struct mxc_nand_platform_data
 151 cpuimx27_nand_board_info __initconst = {
 152         .width = 1,
 153         .hw_ecc = 1,
 154 };
 155
 156 static struct platform_device *platform_devices[] __initdata = {
 157         &eukrea_cpuimx27_nor_mtd_device,
 158 };
 159
 160 static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
 161         .bitrate = 100000,
 162 };
 163
 164 static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
 165         {
 166                 I2C_BOARD_INFO("pcf8563", 0x51),
 167         },
 168 };
 169
 170 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 171 static struct plat_serial8250_port serial_platform_data[] = {
 172         {
 173                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
 174                 .irq = IRQ_GPIOB(23),
 175                 .uartclk = 14745600,
 176                 .regshift = 1,
 177                 .iotype = UPIO_MEM,
 178                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 179         }, {
 180                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
 181                 .irq = IRQ_GPIOB(22),
 182                 .uartclk = 14745600,
 183                 .regshift = 1,
 184                 .iotype = UPIO_MEM,
 185                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 186         }, {
 187                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
 188                 .irq = IRQ_GPIOB(27),
 189                 .uartclk = 14745600,
 190                 .regshift = 1,
 191                 .iotype = UPIO_MEM,
 192                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 193         }, {
 194                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
 195                 .irq = IRQ_GPIOB(30),
 196                 .uartclk = 14745600,
 197                 .regshift = 1,
 198                 .iotype = UPIO_MEM,
 199                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 200         }, {
 201         }
 202 };
 203
 204 static struct platform_device serial_device = {
 205         .name = "serial8250",
 206         .id = 0,
 207         .dev = {
 208                 .platform_data = serial_platform_data,
 209         },
 210 };
 211 #endif
 212
 213 #if defined(CONFIG_USB_ULPI)
 214 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 215         .portsc = MXC_EHCI_MODE_ULPI,
 216         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 217 };
 218
 219 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 220         .portsc = MXC_EHCI_MODE_ULPI,
 221         .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
 222 };
 223 #endif
 224
 225 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 226         .operating_mode = FSL_USB2_DR_DEVICE,
 227         .phy_mode       = FSL_USB2_PHY_ULPI,
 228 };
 229
 230 static int otg_mode_host;
 231
 232 static int __init eukrea_cpuimx27_otg_mode(char *options)
 233 {
 234         if (!strcmp(options, "host"))
 235                 otg_mode_host = 1;
 236         else if (!strcmp(options, "device"))
 237                 otg_mode_host = 0;
 238         else
 239                 pr_info("otg_mode neither \"host\" nor \"device\". "
 240                         "Defaulting to device\n");
 241         return 0;
 242 }
 243 __setup("otg_mode=", eukrea_cpuimx27_otg_mode);
 244
 245 static void __init eukrea_cpuimx27_init(void)
 246 {
 247         mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
 248                 ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
 249
 250         imx27_add_imx_uart0(&uart_pdata);
 251
 252         imx27_add_mxc_nand(&cpuimx27_nand_board_info);
 253
 254         i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
 255                                 ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
 256
 257         imx27_add_imx_i2c(0, &cpuimx27_i2c1_data);
 258
 259         imx27_add_fec(NULL);
 260         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 261         imx27_add_imx2_wdt(NULL);
 262         imx27_add_mxc_w1(NULL);
 263
 264 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
 265         /* SDHC2 can be used for Wifi */
 266         imx27_add_mxc_mmc(1, NULL);
 267 #endif
 268 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
 269         /* in which case UART4 is also used for Bluetooth */
 270         imx27_add_imx_uart3(&uart_pdata);
 271 #endif
 272
 273 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 274         platform_device_register(&serial_device);
 275 #endif
 276
 277 #if defined(CONFIG_USB_ULPI)
 278         if (otg_mode_host) {
 279                 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 280                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 281
 282                 imx27_add_mxc_ehci_otg(&otg_pdata);
 283         }
 284
 285         usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
 286                                 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
 287
 288         imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 289 #endif
 290         if (!otg_mode_host)
 291                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 292
 293 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
 294         eukrea_mbimx27_baseboard_init();
 295 #endif
 296 }
 297
 298 static void __init eukrea_cpuimx27_timer_init(void)
 299 {
 300         mx27_clocks_init(26000000);
 301 }
 302
 303 static struct sys_timer eukrea_cpuimx27_timer = {
 304         .init = eukrea_cpuimx27_timer_init,
 305 };
 306
 307 MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
 308         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 309         .map_io         = mx27_map_io,
 310         .init_irq       = mx27_init_irq,
 311         .init_machine   = eukrea_cpuimx27_init,
 312         .timer          = &eukrea_cpuimx27_timer,
 313 MACHINE_END