arch/arm/mach-omap2/board-cm-t3517.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-cm-t3517.c
   3  *
   4  * Support for the CompuLab CM-T3517 modules
   5  *
   6  * Copyright (C) 2010 CompuLab, Ltd.
   7  * Author: Igor Grinberg <grinberg@compulab.co.il>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * 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 St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #include <linux/kernel.h>
  26 #include <linux/init.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/delay.h>
  29 #include <linux/gpio.h>
  30 #include <linux/leds.h>
  31 #include <linux/omap-gpmc.h>
  32 #include <linux/rtc-v3020.h>
  33 #include <linux/mtd/mtd.h>
  34 #include <linux/mtd/nand.h>
  35 #include <linux/mtd/partitions.h>
  36 #include <linux/mmc/host.h>
  37 #include <linux/can/platform/ti_hecc.h>
  38
  39 #include <asm/mach-types.h>
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42
  43 #include "common.h"
  44 #include <linux/platform_data/mtd-nand-omap2.h>
  45
  46 #include "am35xx.h"
  47
  48 #include "mux.h"
  49 #include "control.h"
  50 #include "hsmmc.h"
  51 #include "common-board-devices.h"
  52 #include "am35xx-emac.h"
  53
  54 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
  55 static struct gpio_led cm_t3517_leds[] = {
  56         [0] = {
  57                 .gpio                   = 186,
  58                 .name                   = "cm-t3517:green",
  59                 .default_trigger        = "heartbeat",
  60                 .active_low             = 0,
  61         },
  62 };
  63
  64 static struct gpio_led_platform_data cm_t3517_led_pdata = {
  65         .num_leds       = ARRAY_SIZE(cm_t3517_leds),
  66         .leds           = cm_t3517_leds,
  67 };
  68
  69 static struct platform_device cm_t3517_led_device = {
  70         .name           = "leds-gpio",
  71         .id             = -1,
  72         .dev            = {
  73                 .platform_data  = &cm_t3517_led_pdata,
  74         },
  75 };
  76
  77 static void __init cm_t3517_init_leds(void)
  78 {
  79         platform_device_register(&cm_t3517_led_device);
  80 }
  81 #else
  82 static inline void cm_t3517_init_leds(void) {}
  83 #endif
  84
  85 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
  86 static struct resource cm_t3517_hecc_resources[] = {
  87         {
  88                 .start  = AM35XX_IPSS_HECC_BASE,
  89                 .end    = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
  90                 .flags  = IORESOURCE_MEM,
  91         },
  92         {
  93                 .start  = 24 + OMAP_INTC_START,
  94                 .flags  = IORESOURCE_IRQ,
  95         },
  96 };
  97
  98 static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
  99         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 100         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 101         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 102         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 103         .int_line               = AM35XX_HECC_INT_LINE,
 104         .version                = AM35XX_HECC_VERSION,
 105 };
 106
 107 static struct platform_device cm_t3517_hecc_device = {
 108         .name           = "ti_hecc",
 109         .id             = 1,
 110         .num_resources  = ARRAY_SIZE(cm_t3517_hecc_resources),
 111         .resource       = cm_t3517_hecc_resources,
 112         .dev            = {
 113                 .platform_data  = &cm_t3517_hecc_pdata,
 114         },
 115 };
 116
 117 static void cm_t3517_init_hecc(void)
 118 {
 119         platform_device_register(&cm_t3517_hecc_device);
 120 }
 121 #else
 122 static inline void cm_t3517_init_hecc(void) {}
 123 #endif
 124
 125 #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
 126 static struct omap2_hsmmc_info cm_t3517_mmc[] = {
 127         {
 128                 .mmc            = 1,
 129                 .caps           = MMC_CAP_4_BIT_DATA,
 130                 .gpio_cd        = 144,
 131                 .gpio_wp        = 59,
 132         },
 133         {
 134                 .mmc            = 2,
 135                 .caps           = MMC_CAP_4_BIT_DATA,
 136                 .gpio_cd        = -EINVAL,
 137                 .gpio_wp        = -EINVAL,
 138         },
 139         {}      /* Terminator */
 140 };
 141 #else
 142 #define cm_t3517_mmc NULL
 143 #endif
 144
 145 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 146 #define RTC_IO_GPIO             (153)
 147 #define RTC_WR_GPIO             (154)
 148 #define RTC_RD_GPIO             (53)
 149 #define RTC_CS_GPIO             (163)
 150 #define RTC_CS_EN_GPIO          (160)
 151
 152 struct v3020_platform_data cm_t3517_v3020_pdata = {
 153         .use_gpio       = 1,
 154         .gpio_cs        = RTC_CS_GPIO,
 155         .gpio_wr        = RTC_WR_GPIO,
 156         .gpio_rd        = RTC_RD_GPIO,
 157         .gpio_io        = RTC_IO_GPIO,
 158 };
 159
 160 static struct platform_device cm_t3517_rtc_device = {
 161         .name           = "v3020",
 162         .id             = -1,
 163         .dev            = {
 164                 .platform_data = &cm_t3517_v3020_pdata,
 165         }
 166 };
 167
 168 static void __init cm_t3517_init_rtc(void)
 169 {
 170         int err;
 171
 172         err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
 173                                "rtc cs en");
 174         if (err) {
 175                 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
 176                 return;
 177         }
 178
 179         platform_device_register(&cm_t3517_rtc_device);
 180 }
 181 #else
 182 static inline void cm_t3517_init_rtc(void) {}
 183 #endif
 184
 185 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 186 #define HSUSB1_RESET_GPIO       (146)
 187 #define HSUSB2_RESET_GPIO       (147)
 188 #define USB_HUB_RESET_GPIO      (152)
 189
 190 static struct usbhs_phy_data phy_data[] __initdata = {
 191         {
 192                 .port = 1,
 193                 .reset_gpio = HSUSB1_RESET_GPIO,
 194                 .vcc_gpio = -EINVAL,
 195         },
 196         {
 197                 .port = 2,
 198                 .reset_gpio = HSUSB2_RESET_GPIO,
 199                 .vcc_gpio = -EINVAL,
 200         },
 201 };
 202
 203 static struct usbhs_omap_platform_data cm_t3517_ehci_pdata __initdata = {
 204         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 205         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 206 };
 207
 208 static int __init cm_t3517_init_usbh(void)
 209 {
 210         int err;
 211
 212         err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
 213                                "usb hub rst");
 214         if (err) {
 215                 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
 216         } else {
 217                 udelay(10);
 218                 gpio_set_value(USB_HUB_RESET_GPIO, 1);
 219                 msleep(1);
 220         }
 221
 222         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
 223         usbhs_init(&cm_t3517_ehci_pdata);
 224
 225         return 0;
 226 }
 227 #else
 228 static inline int cm_t3517_init_usbh(void)
 229 {
 230         return 0;
 231 }
 232 #endif
 233
 234 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 235 static struct mtd_partition cm_t3517_nand_partitions[] = {
 236         {
 237                 .name           = "xloader",
 238                 .offset         = 0,                    /* Offset = 0x00000 */
 239                 .size           = 4 * NAND_BLOCK_SIZE,
 240                 .mask_flags     = MTD_WRITEABLE
 241         },
 242         {
 243                 .name           = "uboot",
 244                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 245                 .size           = 15 * NAND_BLOCK_SIZE,
 246         },
 247         {
 248                 .name           = "uboot environment",
 249                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 250                 .size           = 2 * NAND_BLOCK_SIZE,
 251         },
 252         {
 253                 .name           = "linux",
 254                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2A0000 */
 255                 .size           = 32 * NAND_BLOCK_SIZE,
 256         },
 257         {
 258                 .name           = "rootfs",
 259                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x6A0000 */
 260                 .size           = MTDPART_SIZ_FULL,
 261         },
 262 };
 263
 264 static struct omap_nand_platform_data cm_t3517_nand_data = {
 265         .parts                  = cm_t3517_nand_partitions,
 266         .nr_parts               = ARRAY_SIZE(cm_t3517_nand_partitions),
 267         .cs                     = 0,
 268 };
 269
 270 static void __init cm_t3517_init_nand(void)
 271 {
 272         if (gpmc_nand_init(&cm_t3517_nand_data, NULL) < 0)
 273                 pr_err("CM-T3517: NAND initialization failed\n");
 274 }
 275 #else
 276 static inline void cm_t3517_init_nand(void) {}
 277 #endif
 278
 279 #ifdef CONFIG_OMAP_MUX
 280 static struct omap_board_mux board_mux[] __initdata = {
 281         /* GPIO186 - Green LED */
 282         OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 283
 284         /* RTC GPIOs: */
 285         /* IO - GPIO153 */
 286         OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 287         /* WR# - GPIO154 */
 288         OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 289         /* RD# - GPIO53 */
 290         OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 291         /* CS# - GPIO163 */
 292         OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 293         /* CS EN - GPIO160 */
 294         OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 295
 296         /* HSUSB1 RESET */
 297         OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 298         /* HSUSB2 RESET */
 299         OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 300         /* CM-T3517 USB HUB nRESET */
 301         OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 302
 303         /* CD - GPIO144 and WP - GPIO59 for MMC1 - SB-T35 */
 304         OMAP3_MUX(UART2_CTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
 305         OMAP3_MUX(GPMC_CLK, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
 306
 307         { .reg_offset = OMAP_MUX_TERMINATOR },
 308 };
 309 #endif
 310
 311 static void __init cm_t3517_init(void)
 312 {
 313         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 314         omap_serial_init();
 315         omap_sdrc_init(NULL, NULL);
 316         cm_t3517_init_leds();
 317         cm_t3517_init_nand();
 318         cm_t3517_init_rtc();
 319         cm_t3517_init_usbh();
 320         cm_t3517_init_hecc();
 321         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 322         omap_hsmmc_init(cm_t3517_mmc);
 323 }
 324
 325 MACHINE_START(CM_T3517, "Compulab CM-T3517")
 326         .atag_offset    = 0x100,
 327         .reserve        = omap_reserve,
 328         .map_io         = omap3_map_io,
 329         .init_early     = am35xx_init_early,
 330         .init_irq       = omap3_init_irq,
 331         .init_machine   = cm_t3517_init,
 332         .init_late      = am35xx_init_late,
 333         .init_time      = omap3_gptimer_timer_init,
 334         .restart        = omap3xxx_restart,
 335 MACHINE_END