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 "common.h"
  38 #include "devices-imx27.h"
  39 #include "eukrea-baseboards.h"
  40 #include "hardware.h"
  41 #include "iomux-mx27.h"
  42 #include "ulpi.h"
  43
  44 static const int eukrea_cpuimx27_pins[] __initconst = {
  45         /* UART1 */
  46         PE12_PF_UART1_TXD,
  47         PE13_PF_UART1_RXD,
  48         PE14_PF_UART1_CTS,
  49         PE15_PF_UART1_RTS,
  50         /* UART4 */
  51 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
  52         PB26_AF_UART4_RTS,
  53         PB28_AF_UART4_TXD,
  54         PB29_AF_UART4_CTS,
  55         PB31_AF_UART4_RXD,
  56 #endif
  57         /* FEC */
  58         PD0_AIN_FEC_TXD0,
  59         PD1_AIN_FEC_TXD1,
  60         PD2_AIN_FEC_TXD2,
  61         PD3_AIN_FEC_TXD3,
  62         PD4_AOUT_FEC_RX_ER,
  63         PD5_AOUT_FEC_RXD1,
  64         PD6_AOUT_FEC_RXD2,
  65         PD7_AOUT_FEC_RXD3,
  66         PD8_AF_FEC_MDIO,
  67         PD9_AIN_FEC_MDC,
  68         PD10_AOUT_FEC_CRS,
  69         PD11_AOUT_FEC_TX_CLK,
  70         PD12_AOUT_FEC_RXD0,
  71         PD13_AOUT_FEC_RX_DV,
  72         PD14_AOUT_FEC_RX_CLK,
  73         PD15_AOUT_FEC_COL,
  74         PD16_AIN_FEC_TX_ER,
  75         PF23_AIN_FEC_TX_EN,
  76         /* I2C1 */
  77         PD17_PF_I2C_DATA,
  78         PD18_PF_I2C_CLK,
  79         /* SDHC2 */
  80 #if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
  81         PB4_PF_SD2_D0,
  82         PB5_PF_SD2_D1,
  83         PB6_PF_SD2_D2,
  84         PB7_PF_SD2_D3,
  85         PB8_PF_SD2_CMD,
  86         PB9_PF_SD2_CLK,
  87 #endif
  88 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
  89         /* Quad UART's IRQ */
  90         GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
  91         GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
  92         GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
  93         GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
  94 #endif
  95         /* OTG */
  96         PC7_PF_USBOTG_DATA5,
  97         PC8_PF_USBOTG_DATA6,
  98         PC9_PF_USBOTG_DATA0,
  99         PC10_PF_USBOTG_DATA2,
 100         PC11_PF_USBOTG_DATA1,
 101         PC12_PF_USBOTG_DATA4,
 102         PC13_PF_USBOTG_DATA3,
 103         PE0_PF_USBOTG_NXT,
 104         PE1_PF_USBOTG_STP,
 105         PE2_PF_USBOTG_DIR,
 106         PE24_PF_USBOTG_CLK,
 107         PE25_PF_USBOTG_DATA7,
 108         /* USBH2 */
 109         PA0_PF_USBH2_CLK,
 110         PA1_PF_USBH2_DIR,
 111         PA2_PF_USBH2_DATA7,
 112         PA3_PF_USBH2_NXT,
 113         PA4_PF_USBH2_STP,
 114         PD19_AF_USBH2_DATA4,
 115         PD20_AF_USBH2_DATA3,
 116         PD21_AF_USBH2_DATA6,
 117         PD22_AF_USBH2_DATA0,
 118         PD23_AF_USBH2_DATA2,
 119         PD24_AF_USBH2_DATA1,
 120         PD26_AF_USBH2_DATA5,
 121 };
 122
 123 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
 124         .width = 2,
 125 };
 126
 127 static struct resource eukrea_cpuimx27_flash_resource = {
 128         .start = 0xc0000000,
 129         .end   = 0xc3ffffff,
 130         .flags = IORESOURCE_MEM,
 131 };
 132
 133 static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
 134         .name = "physmap-flash",
 135         .id = 0,
 136         .dev = {
 137                 .platform_data = &eukrea_cpuimx27_flash_data,
 138         },
 139         .num_resources = 1,
 140         .resource = &eukrea_cpuimx27_flash_resource,
 141 };
 142
 143 static const struct imxuart_platform_data uart_pdata __initconst = {
 144         .flags = IMXUART_HAVE_RTSCTS,
 145 };
 146
 147 static const struct mxc_nand_platform_data
 148 cpuimx27_nand_board_info __initconst = {
 149         .width = 1,
 150         .hw_ecc = 1,
 151 };
 152
 153 static struct platform_device *platform_devices[] __initdata = {
 154         &eukrea_cpuimx27_nor_mtd_device,
 155 };
 156
 157 static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
 158         .bitrate = 100000,
 159 };
 160
 161 static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
 162         {
 163                 I2C_BOARD_INFO("pcf8563", 0x51),
 164         },
 165 };
 166
 167 #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 168 static struct plat_serial8250_port serial_platform_data[] = {
 169         {
 170                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
 171                 /* irq number is run-time assigned */
 172                 .uartclk = 14745600,
 173                 .regshift = 1,
 174                 .iotype = UPIO_MEM,
 175                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 176         }, {
 177                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
 178                 /* irq number is run-time assigned */
 179                 .uartclk = 14745600,
 180                 .regshift = 1,
 181                 .iotype = UPIO_MEM,
 182                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 183         }, {
 184                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
 185                 /* irq number is run-time assigned */
 186                 .uartclk = 14745600,
 187                 .regshift = 1,
 188                 .iotype = UPIO_MEM,
 189                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 190         }, {
 191                 .mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
 192                 /* irq number is run-time assigned */
 193                 .uartclk = 14745600,
 194                 .regshift = 1,
 195                 .iotype = UPIO_MEM,
 196                 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
 197         }, {
 198         }
 199 };
 200
 201 static struct platform_device serial_device = {
 202         .name = "serial8250",
 203         .id = 0,
 204         .dev = {
 205                 .platform_data = serial_platform_data,
 206         },
 207 };
 208 #endif
 209
 210 static int eukrea_cpuimx27_otg_init(struct platform_device *pdev)
 211 {
 212         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 213 }
 214
 215 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 216         .init   = eukrea_cpuimx27_otg_init,
 217         .portsc = MXC_EHCI_MODE_ULPI,
 218 };
 219
 220 static int eukrea_cpuimx27_usbh2_init(struct platform_device *pdev)
 221 {
 222         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 223 }
 224
 225 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 226         .init   = eukrea_cpuimx27_usbh2_init,
 227         .portsc = MXC_EHCI_MODE_ULPI,
 228 };
 229
 230 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 231         .operating_mode = FSL_USB2_DR_DEVICE,
 232         .phy_mode       = FSL_USB2_PHY_ULPI,
 233 };
 234
 235 static bool otg_mode_host __initdata;
 236
 237 static int __init eukrea_cpuimx27_otg_mode(char *options)
 238 {
 239         if (!strcmp(options, "host"))
 240                 otg_mode_host = true;
 241         else if (!strcmp(options, "device"))
 242                 otg_mode_host = false;
 243         else
 244                 pr_info("otg_mode neither \"host\" nor \"device\". "
 245                         "Defaulting to device\n");
 246         return 1;
 247 }
 248 __setup("otg_mode=", eukrea_cpuimx27_otg_mode);
 249
 250 static void __init eukrea_cpuimx27_init(void)
 251 {
 252         imx27_soc_init();
 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();
 269         imx27_add_mxc_w1();
 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(CONFIG_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         serial_platform_data[0].irq = IMX_GPIO_NR(2, 23);
 282         serial_platform_data[1].irq = IMX_GPIO_NR(2, 22);
 283         serial_platform_data[2].irq = IMX_GPIO_NR(2, 27);
 284         serial_platform_data[3].irq = IMX_GPIO_NR(2, 30);
 285         platform_device_register(&serial_device);
 286 #endif
 287
 288         if (otg_mode_host) {
 289                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 290                                 ULPI_OTG_DRVVBUS_EXT);
 291                 if (otg_pdata.otg)
 292                         imx27_add_mxc_ehci_otg(&otg_pdata);
 293         } else {
 294                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 295         }
 296
 297         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 298                         ULPI_OTG_DRVVBUS_EXT);
 299         if (usbh2_pdata.otg)
 300                 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
 301
 302 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
 303         eukrea_mbimx27_baseboard_init();
 304 #endif
 305 }
 306
 307 static void __init eukrea_cpuimx27_timer_init(void)
 308 {
 309         mx27_clocks_init(26000000);
 310 }
 311
 312 MACHINE_START(EUKREA_CPUIMX27, "EUKREA CPUIMX27")
 313         .atag_offset = 0x100,
 314         .map_io = mx27_map_io,
 315         .init_early = imx27_init_early,
 316         .init_irq = mx27_init_irq,
 317         .handle_irq = imx27_handle_irq,
 318         .init_time      = eukrea_cpuimx27_timer_init,
 319         .init_machine = eukrea_cpuimx27_init,
 320         .restart        = mxc_restart,
 321 MACHINE_END