arch/arm/mach-imx/mach-imx27_visstrim_m10.c

   1 /*
   2  * mach-imx27_visstrim_m10.c
   3  *
   4  * Copyright 2010  Javier Martin <javier.martin@vista-silicon.com>
   5  *
   6  * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  21  * MA 02110-1301, USA.
  22  */
  23
  24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  25
  26 #include <linux/platform_device.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/i2c.h>
  29 #include <linux/i2c/pca953x.h>
  30 #include <linux/gpio_keys.h>
  31 #include <linux/input.h>
  32 #include <linux/gpio.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/time.h>
  36 #include <mach/common.h>
  37 #include <mach/mmc.h>
  38 #include <mach/iomux.h>
  39 #include <mach/mxc_ehci.h>
  40
  41 #include "devices-imx27.h"
  42 #include "devices.h"
  43
  44 #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
  45 #define SDHC1_IRQ IRQ_GPIOB(25)
  46
  47 static const int visstrim_m10_pins[] __initconst = {
  48         /* UART1 (console) */
  49         PE12_PF_UART1_TXD,
  50         PE13_PF_UART1_RXD,
  51         PE14_PF_UART1_CTS,
  52         PE15_PF_UART1_RTS,
  53         /* FEC */
  54         PD0_AIN_FEC_TXD0,
  55         PD1_AIN_FEC_TXD1,
  56         PD2_AIN_FEC_TXD2,
  57         PD3_AIN_FEC_TXD3,
  58         PD4_AOUT_FEC_RX_ER,
  59         PD5_AOUT_FEC_RXD1,
  60         PD6_AOUT_FEC_RXD2,
  61         PD7_AOUT_FEC_RXD3,
  62         PD8_AF_FEC_MDIO,
  63         PD9_AIN_FEC_MDC,
  64         PD10_AOUT_FEC_CRS,
  65         PD11_AOUT_FEC_TX_CLK,
  66         PD12_AOUT_FEC_RXD0,
  67         PD13_AOUT_FEC_RX_DV,
  68         PD14_AOUT_FEC_RX_CLK,
  69         PD15_AOUT_FEC_COL,
  70         PD16_AIN_FEC_TX_ER,
  71         PF23_AIN_FEC_TX_EN,
  72         /* SDHC1 */
  73         PE18_PF_SD1_D0,
  74         PE19_PF_SD1_D1,
  75         PE20_PF_SD1_D2,
  76         PE21_PF_SD1_D3,
  77         PE22_PF_SD1_CMD,
  78         PE23_PF_SD1_CLK,
  79         /* Both I2Cs */
  80         PD17_PF_I2C_DATA,
  81         PD18_PF_I2C_CLK,
  82         PC5_PF_I2C2_SDA,
  83         PC6_PF_I2C2_SCL,
  84         /* USB OTG */
  85         OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
  86         PC9_PF_USBOTG_DATA0,
  87         PC11_PF_USBOTG_DATA1,
  88         PC10_PF_USBOTG_DATA2,
  89         PC13_PF_USBOTG_DATA3,
  90         PC12_PF_USBOTG_DATA4,
  91         PC7_PF_USBOTG_DATA5,
  92         PC8_PF_USBOTG_DATA6,
  93         PE25_PF_USBOTG_DATA7,
  94         PE24_PF_USBOTG_CLK,
  95         PE2_PF_USBOTG_DIR,
  96         PE0_PF_USBOTG_NXT,
  97         PE1_PF_USBOTG_STP,
  98         PB23_PF_USB_PWR,
  99         PB24_PF_USB_OC,
 100 };
 101
 102 /* GPIOs used as events for applications */
 103 static struct gpio_keys_button visstrim_gpio_keys[] = {
 104         {
 105                 .type   = EV_KEY,
 106                 .code   = KEY_RESTART,
 107                 .gpio   = (GPIO_PORTC + 15),
 108                 .desc   = "Default config",
 109                 .active_low = 0,
 110                 .wakeup = 1,
 111         },
 112         {
 113                 .type   = EV_KEY,
 114                 .code   = KEY_RECORD,
 115                 .gpio   = (GPIO_PORTF + 14),
 116                 .desc   = "Record",
 117                 .active_low = 0,
 118                 .wakeup = 1,
 119         },
 120         {
 121                 .type   = EV_KEY,
 122                 .code   = KEY_STOP,
 123                 .gpio   = (GPIO_PORTF + 13),
 124                 .desc   = "Stop",
 125                 .active_low = 0,
 126                 .wakeup = 1,
 127         }
 128 };
 129
 130 static struct gpio_keys_platform_data visstrim_gpio_keys_platform_data = {
 131         .buttons        = visstrim_gpio_keys,
 132         .nbuttons       = ARRAY_SIZE(visstrim_gpio_keys),
 133 };
 134
 135 static struct platform_device visstrim_gpio_keys_device = {
 136         .name   = "gpio-keys",
 137         .id     = -1,
 138         .dev    = {
 139                 .platform_data  = &visstrim_gpio_keys_platform_data,
 140         },
 141 };
 142
 143 /* Visstrim_SM10 has a microSD slot connected to sdhc1 */
 144 static int visstrim_m10_sdhc1_init(struct device *dev,
 145                 irq_handler_t detect_irq, void *data)
 146 {
 147         int ret;
 148
 149         ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
 150                                 "mmc-detect", data);
 151         return ret;
 152 }
 153
 154 static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
 155 {
 156         free_irq(SDHC1_IRQ, data);
 157 }
 158
 159 static struct imxmmc_platform_data visstrim_m10_sdhc_pdata = {
 160         .init = visstrim_m10_sdhc1_init,
 161         .exit = visstrim_m10_sdhc1_exit,
 162 };
 163
 164 /* Visstrim_SM10 NOR flash */
 165 static struct physmap_flash_data visstrim_m10_flash_data = {
 166         .width = 2,
 167 };
 168
 169 static struct resource visstrim_m10_flash_resource = {
 170         .start = 0xc0000000,
 171         .end = 0xc0000000 + SZ_64M - 1,
 172         .flags = IORESOURCE_MEM,
 173 };
 174
 175 static struct platform_device visstrim_m10_nor_mtd_device = {
 176         .name = "physmap-flash",
 177         .id = 0,
 178         .dev = {
 179                 .platform_data = &visstrim_m10_flash_data,
 180         },
 181         .num_resources = 1,
 182         .resource = &visstrim_m10_flash_resource,
 183 };
 184
 185 static struct platform_device *platform_devices[] __initdata = {
 186         &visstrim_gpio_keys_device,
 187         &visstrim_m10_nor_mtd_device,
 188 };
 189
 190 /* Visstrim_M10 uses UART0 as console */
 191 static const struct imxuart_platform_data uart_pdata __initconst = {
 192         .flags = IMXUART_HAVE_RTSCTS,
 193 };
 194
 195 /* I2C */
 196 static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
 197         .bitrate = 100000,
 198 };
 199
 200 static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
 201         .gpio_base = 240, /* After MX27 internal GPIOs */
 202         .invert = 0,
 203 };
 204
 205 static struct i2c_board_info visstrim_m10_i2c_devices[] = {
 206         {
 207                 I2C_BOARD_INFO("pca9555", 0x20),
 208                 .platform_data = &visstrim_m10_pca9555_pdata,
 209         },
 210 };
 211
 212 /* USB OTG */
 213 static int otg_phy_init(struct platform_device *pdev)
 214 {
 215         gpio_set_value(OTG_PHY_CS_GPIO, 0);
 216         return 0;
 217 }
 218
 219 static struct mxc_usbh_platform_data visstrim_m10_usbotg_pdata = {
 220         .init = otg_phy_init,
 221         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 222         .flags  = MXC_EHCI_POWER_PINS_ENABLED,
 223 };
 224
 225 static void __init visstrim_m10_board_init(void)
 226 {
 227         int ret;
 228
 229         ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
 230                         ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
 231         if (ret)
 232                 pr_err("Failed to setup pins (%d)\n", ret);
 233
 234         imx27_add_imx_uart0(&uart_pdata);
 235
 236         i2c_register_board_info(0, visstrim_m10_i2c_devices,
 237                                 ARRAY_SIZE(visstrim_m10_i2c_devices));
 238         imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
 239         imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
 240         mxc_register_device(&mxc_sdhc_device0, &visstrim_m10_sdhc_pdata);
 241         mxc_register_device(&mxc_otg_host, &visstrim_m10_usbotg_pdata);
 242         imx27_add_fec(NULL);
 243         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 244 }
 245
 246 static void __init visstrim_m10_timer_init(void)
 247 {
 248         mx27_clocks_init((unsigned long)25000000);
 249 }
 250
 251 static struct sys_timer visstrim_m10_timer = {
 252         .init   = visstrim_m10_timer_init,
 253 };
 254
 255 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
 256         .boot_params    = MX27_PHYS_OFFSET + 0x100,
 257         .map_io         = mx27_map_io,
 258         .init_irq       = mx27_init_irq,
 259         .init_machine   = visstrim_m10_board_init,
 260         .timer          = &visstrim_m10_timer,
 261 MACHINE_END