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
  46 static const int eukrea_cpuimx27_pins[] __initconst = {
  47         /* UART1 */
  48         PE12_PF_UART1_TXD,
  49         PE13_PF_UART1_RXD,
  50         PE14_PF_UART1_CTS,
  51         PE15_PF_UART1_RTS,
  52         /* UART4 */
  53 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
  54         PB26_AF_UART4_RTS,
  55         PB28_AF_UART4_TXD,
  56         PB29_AF_UART4_CTS,
  57         PB31_AF_UART4_RXD,
  58 #endif
  59         /* FEC */
  60         PD0_AIN_FEC_TXD0,
  61         PD1_AIN_FEC_TXD1,
  62         PD2_AIN_FEC_TXD2,
  63         PD3_AIN_FEC_TXD3,
  64         PD4_AOUT_FEC_RX_ER,
  65         PD5_AOUT_FEC_RXD1,
  66         PD6_AOUT_FEC_RXD2,
  67         PD7_AOUT_FEC_RXD3,
  68         PD8_AF_FEC_MDIO,
  69         PD9_AIN_FEC_MDC,
  70         PD10_AOUT_FEC_CRS,
  71         PD11_AOUT_FEC_TX_CLK,
  72         PD12_AOUT_FEC_RXD0,
  73         PD13_AOUT_FEC_RX_DV,
  74         PD14_AOUT_FEC_RX_CLK,
  75         PD15_AOUT_FEC_COL,
  76         PD16_AIN_FEC_TX_ER,
  77         PF23_AIN_FEC_TX_EN,
  78         /* I2C1 */
  79         PD17_PF_I2C_DATA,
  80         PD18_PF_I2C_CLK,
  81         /* SDHC2 */
  82 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
  83         PB4_PF_SD2_D0,
  84         PB5_PF_SD2_D1,
  85         PB6_PF_SD2_D2,
  86         PB7_PF_SD2_D3,
  87         PB8_PF_SD2_CMD,
  88         PB9_PF_SD2_CLK,
  89 #endif
  90 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
  91         /* Quad UART's IRQ */
  92         GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
  93         GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
  94         GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
  95         GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
  96 #endif
  97         /* OTG */
  98         PC7_PF_USBOTG_DATA5,
  99         PC8_PF_USBOTG_DATA6,
 100         PC9_PF_USBOTG_DATA0,
 101         PC10_PF_USBOTG_DATA2,
 102         PC11_PF_USBOTG_DATA1,
 103         PC12_PF_USBOTG_DATA4,
 104         PC13_PF_USBOTG_DATA3,
 105         PE0_PF_USBOTG_NXT,
 106         PE1_PF_USBOTG_STP,
 107         PE2_PF_USBOTG_DIR,
 108         PE24_PF_USBOTG_CLK,
 109         PE25_PF_USBOTG_DATA7,
 110         /* USBH2 */
 111         PA0_PF_USBH2_CLK,
 112         PA1_PF_USBH2_DIR,
 113         PA2_PF_USBH2_DATA7,
 114         PA3_PF_USBH2_NXT,
 115         PA4_PF_USBH2_STP,
 116         PD19_AF_USBH2_DATA4,
 117         PD20_AF_USBH2_DATA3,
 118         PD21_AF_USBH2_DATA6,
 119         PD22_AF_USBH2_DATA0,
 120         PD23_AF_USBH2_DATA2,
 121         PD24_AF_USBH2_DATA1,
 122         PD26_AF_USBH2_DATA5,
 123 };
 124
 125 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
 126         .width = 2,
 127 };
 128
 129 static struct resource eukrea_cpuimx27_flash_resource = {
 130         .start = 0xc0000000,
 131         .end   = 0xc3ffffff,
 132         .flags = IORESOURCE_MEM,
 133 };
 134
 135 static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
 136         .name = "physmap-flash",
 137         .id = 0,
 138         .dev = {
 139                 .platform_data = &eukrea_cpuimx27_flash_data,
 140         },
 141         .num_resources = 1,
 142         .resource = &eukrea_cpuimx27_flash_resource,
 143 };
 144
 145 static const struct imxuart_platform_data uart_pdata __initconst = {
 146         .flags = IMXUART_HAVE_RTSCTS,
 147 };
 148
 149 static const struct mxc_nand_platform_data
 150 cpuimx27_nand_board_info __initconst = {
 151         .width = 1,
 152         .hw_ecc = 1,
 153 };
 154
 155 static struct platform_device *platform_devices[] __initdata = {
 156         &eukrea_cpuimx27_nor_mtd_device,
 157 };
 158
 159 static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
 160         .bitrate = 100000,
 161 };
 162
 163 static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
 164         {
 165                 I2C_BOARD_INFO("pcf8563", 0x51),
 166         },
 167 };
 168
 169 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 170 static struct plat_serial8250_port serial_platform_data[] = {
 171         {
 172                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
 173                 .irq = IRQ_GPIOB(23),
 174                 .uartclk = 14745600,
 175                 .regshift = 1,
 176                 .iotype = UPIO_MEM,
 177                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 178         }, {
 179                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
 180                 .irq = IRQ_GPIOB(22),
 181                 .uartclk = 14745600,
 182                 .regshift = 1,
 183                 .iotype = UPIO_MEM,
 184                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 185         }, {
 186                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
 187                 .irq = IRQ_GPIOB(27),
 188                 .uartclk = 14745600,
 189                 .regshift = 1,
 190                 .iotype = UPIO_MEM,
 191                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 192         }, {
 193                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
 194                 .irq = IRQ_GPIOB(30),
 195                 .uartclk = 14745600,
 196                 .regshift = 1,
 197                 .iotype = UPIO_MEM,
 198                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 199         }, {
 200         }
 201 };
 202
 203 static struct platform_device serial_device = {
 204         .name = "serial8250",
 205         .id = 0,
 206         .dev = {
 207                 .platform_data = serial_platform_data,
 208         },
 209 };
 210 #endif
 211
 212 static int eukrea_cpuimx27_otg_init(struct platform_device *pdev)
 213 {
 214         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 215 }
 216
 217 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 218         .init   = eukrea_cpuimx27_otg_init,
 219         .portsc = MXC_EHCI_MODE_ULPI,
 220 };
 221
 222 static int eukrea_cpuimx27_usbh2_init(struct platform_device *pdev)
 223 {
 224         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 225 }
 226
 227 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 228         .init   = eukrea_cpuimx27_usbh2_init,
 229         .portsc = MXC_EHCI_MODE_ULPI,
 230 };
 231
 232 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 233         .operating_mode = FSL_USB2_DR_DEVICE,
 234         .phy_mode       = FSL_USB2_PHY_ULPI,
 235 };
 236
 237 static int otg_mode_host;
 238
 239 static int __init eukrea_cpuimx27_otg_mode(char *options)
 240 {
 241         if (!strcmp(options, "host"))
 242                 otg_mode_host = 1;
 243         else if (!strcmp(options, "device"))
 244                 otg_mode_host = 0;
 245         else
 246                 pr_info("otg_mode neither \"host\" nor \"device\". "
 247                         "Defaulting to device\n");
 248         return 0;
 249 }
 250 __setup("otg_mode=", eukrea_cpuimx27_otg_mode);
 251
 252 static void __init eukrea_cpuimx27_init(void)
 253 {
 254         mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
 255                 ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
 256
 257         imx27_add_imx_uart0(&uart_pdata);
 258
 259         imx27_add_mxc_nand(&cpuimx27_nand_board_info);
 260
 261         i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
 262                                 ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
 263
 264         imx27_add_imx_i2c(0, &cpuimx27_i2c1_data);
 265
 266         imx27_add_fec(NULL);
 267         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 268         imx27_add_imx2_wdt(NULL);
 269         imx27_add_mxc_w1(NULL);
 270
 271 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
 272         /* SDHC2 can be used for Wifi */
 273         imx27_add_mxc_mmc(1, NULL);
 274 #endif
 275 #if defined(MACH_EUKREA_CPUIMX27_USEUART4)
 276         /* in which case UART4 is also used for Bluetooth */
 277         imx27_add_imx_uart3(&uart_pdata);
 278 #endif
 279
 280 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 281         platform_device_register(&serial_device);
 282 #endif
 283
 284         if (otg_mode_host) {
 285                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 286                                 ULPI_OTG_DRVVBUS_EXT);
 287                 if (otg_pdata.otg)
 288                         imx27_add_mxc_ehci_otg(&otg_pdata);
 289         } else {
 290                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 291         }
 292
 293         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 294                         ULPI_OTG_DRVVBUS_EXT);
 295         if (usbh2_pdata.otg)
 296                 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 297
 298 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
 299         eukrea_mbimx27_baseboard_init();
 300 #endif
 301 }
 302
 303 static void __init eukrea_cpuimx27_timer_init(void)
 304 {
 305         mx27_clocks_init(26000000);
 306 }
 307
 308 static struct sys_timer eukrea_cpuimx27_timer = {
 309         .init = eukrea_cpuimx27_timer_init,
 310 };
 311
 312 MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
 313         .boot_params = MX27_PHYS_OFFSET + 0x100,
 314         .map_io = mx27_map_io,
 315         .init_early = imx27_init_early,
 316         .init_irq = mx27_init_irq,
 317         .timer = &eukrea_cpuimx27_timer,
 318         .init_machine = eukrea_cpuimx27_init,
 319 MACHINE_END