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/ulpi.h>
  42
  43 #include "devices-imx27.h"
  44
  45 static const int eukrea_cpuimx27_pins[] __initconst = {
  46         /* UART1 */
  47         PE12_PF_UART1_TXD,
  48         PE13_PF_UART1_RXD,
  49         PE14_PF_UART1_CTS,
  50         PE15_PF_UART1_RTS,
  51         /* UART4 */
  52 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
  53         PB26_AF_UART4_RTS,
  54         PB28_AF_UART4_TXD,
  55         PB29_AF_UART4_CTS,
  56         PB31_AF_UART4_RXD,
  57 #endif
  58         /* FEC */
  59         PD0_AIN_FEC_TXD0,
  60         PD1_AIN_FEC_TXD1,
  61         PD2_AIN_FEC_TXD2,
  62         PD3_AIN_FEC_TXD3,
  63         PD4_AOUT_FEC_RX_ER,
  64         PD5_AOUT_FEC_RXD1,
  65         PD6_AOUT_FEC_RXD2,
  66         PD7_AOUT_FEC_RXD3,
  67         PD8_AF_FEC_MDIO,
  68         PD9_AIN_FEC_MDC,
  69         PD10_AOUT_FEC_CRS,
  70         PD11_AOUT_FEC_TX_CLK,
  71         PD12_AOUT_FEC_RXD0,
  72         PD13_AOUT_FEC_RX_DV,
  73         PD14_AOUT_FEC_RX_CLK,
  74         PD15_AOUT_FEC_COL,
  75         PD16_AIN_FEC_TX_ER,
  76         PF23_AIN_FEC_TX_EN,
  77         /* I2C1 */
  78         PD17_PF_I2C_DATA,
  79         PD18_PF_I2C_CLK,
  80         /* SDHC2 */
  81 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
  82         PB4_PF_SD2_D0,
  83         PB5_PF_SD2_D1,
  84         PB6_PF_SD2_D2,
  85         PB7_PF_SD2_D3,
  86         PB8_PF_SD2_CMD,
  87         PB9_PF_SD2_CLK,
  88 #endif
  89 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
  90         /* Quad UART's IRQ */
  91         GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
  92         GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
  93         GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
  94         GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
  95 #endif
  96         /* OTG */
  97         PC7_PF_USBOTG_DATA5,
  98         PC8_PF_USBOTG_DATA6,
  99         PC9_PF_USBOTG_DATA0,
 100         PC10_PF_USBOTG_DATA2,
 101         PC11_PF_USBOTG_DATA1,
 102         PC12_PF_USBOTG_DATA4,
 103         PC13_PF_USBOTG_DATA3,
 104         PE0_PF_USBOTG_NXT,
 105         PE1_PF_USBOTG_STP,
 106         PE2_PF_USBOTG_DIR,
 107         PE24_PF_USBOTG_CLK,
 108         PE25_PF_USBOTG_DATA7,
 109         /* USBH2 */
 110         PA0_PF_USBH2_CLK,
 111         PA1_PF_USBH2_DIR,
 112         PA2_PF_USBH2_DATA7,
 113         PA3_PF_USBH2_NXT,
 114         PA4_PF_USBH2_STP,
 115         PD19_AF_USBH2_DATA4,
 116         PD20_AF_USBH2_DATA3,
 117         PD21_AF_USBH2_DATA6,
 118         PD22_AF_USBH2_DATA0,
 119         PD23_AF_USBH2_DATA2,
 120         PD24_AF_USBH2_DATA1,
 121         PD26_AF_USBH2_DATA5,
 122 };
 123
 124 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
 125         .width = 2,
 126 };
 127
 128 static struct resource eukrea_cpuimx27_flash_resource = {
 129         .start = 0xc0000000,
 130         .end   = 0xc3ffffff,
 131         .flags = IORESOURCE_MEM,
 132 };
 133
 134 static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
 135         .name = "physmap-flash",
 136         .id = 0,
 137         .dev = {
 138                 .platform_data = &eukrea_cpuimx27_flash_data,
 139         },
 140         .num_resources = 1,
 141         .resource = &eukrea_cpuimx27_flash_resource,
 142 };
 143
 144 static const struct imxuart_platform_data uart_pdata __initconst = {
 145         .flags = IMXUART_HAVE_RTSCTS,
 146 };
 147
 148 static const struct mxc_nand_platform_data
 149 cpuimx27_nand_board_info __initconst = {
 150         .width = 1,
 151         .hw_ecc = 1,
 152 };
 153
 154 static struct platform_device *platform_devices[] __initdata = {
 155         &eukrea_cpuimx27_nor_mtd_device,
 156 };
 157
 158 static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
 159         .bitrate = 100000,
 160 };
 161
 162 static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
 163         {
 164                 I2C_BOARD_INFO("pcf8563", 0x51),
 165         },
 166 };
 167
 168 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 169 static struct plat_serial8250_port serial_platform_data[] = {
 170         {
 171                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
 172                 .irq = IRQ_GPIOB(23),
 173                 .uartclk = 14745600,
 174                 .regshift = 1,
 175                 .iotype = UPIO_MEM,
 176                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 177         }, {
 178                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
 179                 .irq = IRQ_GPIOB(22),
 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 + 0x800000),
 186                 .irq = IRQ_GPIOB(27),
 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 + 0x1000000),
 193                 .irq = IRQ_GPIOB(30),
 194                 .uartclk = 14745600,
 195                 .regshift = 1,
 196                 .iotype = UPIO_MEM,
 197                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 198         }, {
 199         }
 200 };
 201
 202 static struct platform_device serial_device = {
 203         .name = "serial8250",
 204         .id = 0,
 205         .dev = {
 206                 .platform_data = serial_platform_data,
 207         },
 208 };
 209 #endif
 210
 211 static int eukrea_cpuimx27_otg_init(struct platform_device *pdev)
 212 {
 213         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 214 }
 215
 216 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 217         .init   = eukrea_cpuimx27_otg_init,
 218         .portsc = MXC_EHCI_MODE_ULPI,
 219 };
 220
 221 static int eukrea_cpuimx27_usbh2_init(struct platform_device *pdev)
 222 {
 223         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 224 }
 225
 226 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 227         .init   = eukrea_cpuimx27_usbh2_init,
 228         .portsc = MXC_EHCI_MODE_ULPI,
 229 };
 230
 231 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 232         .operating_mode = FSL_USB2_DR_DEVICE,
 233         .phy_mode       = FSL_USB2_PHY_ULPI,
 234 };
 235
 236 static int otg_mode_host;
 237
 238 static int __init eukrea_cpuimx27_otg_mode(char *options)
 239 {
 240         if (!strcmp(options, "host"))
 241                 otg_mode_host = 1;
 242         else if (!strcmp(options, "device"))
 243                 otg_mode_host = 0;
 244         else
 245                 pr_info("otg_mode neither \"host\" nor \"device\". "
 246                         "Defaulting to device\n");
 247         return 0;
 248 }
 249 __setup("otg_mode=", eukrea_cpuimx27_otg_mode);
 250
 251 static void __init eukrea_cpuimx27_init(void)
 252 {
 253         mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
 254                 ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
 255
 256         imx27_add_imx_uart0(&uart_pdata);
 257
 258         imx27_add_mxc_nand(&cpuimx27_nand_board_info);
 259
 260         i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
 261                                 ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
 262
 263         imx27_add_imx_i2c(0, &cpuimx27_i2c1_data);
 264
 265         imx27_add_fec(NULL);
 266         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 267         imx27_add_imx2_wdt(NULL);
 268         imx27_add_mxc_w1(NULL);
 269
 270 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
 271         /* SDHC2 can be used for Wifi */
 272         imx27_add_mxc_mmc(1, NULL);
 273 #endif
 274 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
 275         /* in which case UART4 is also used for Bluetooth */
 276         imx27_add_imx_uart3(&uart_pdata);
 277 #endif
 278
 279 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 280         platform_device_register(&serial_device);
 281 #endif
 282
 283         if (otg_mode_host) {
 284                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 285                                 ULPI_OTG_DRVVBUS_EXT);
 286                 if (otg_pdata.otg)
 287                         imx27_add_mxc_ehci_otg(&otg_pdata);
 288         } else {
 289                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 290         }
 291
 292         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 293                         ULPI_OTG_DRVVBUS_EXT);
 294         if (usbh2_pdata.otg)
 295                 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 296
 297 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
 298         eukrea_mbimx27_baseboard_init();
 299 #endif
 300 }
 301
 302 static void __init eukrea_cpuimx27_timer_init(void)
 303 {
 304         mx27_clocks_init(26000000);
 305 }
 306
 307 static struct sys_timer eukrea_cpuimx27_timer = {
 308         .init = eukrea_cpuimx27_timer_init,
 309 };
 310
 311 MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
 312         .boot_params = MX27_PHYS_OFFSET + 0x100,
 313         .map_io = mx27_map_io,
 314         .init_early = imx27_init_early,
 315         .init_irq = mx27_init_irq,
 316         .timer = &eukrea_cpuimx27_timer,
 317         .init_machine = eukrea_cpuimx27_init,
 318 MACHINE_END