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/rtc-v3020.h>
  32 #include <linux/mtd/mtd.h>
  33 #include <linux/mtd/nand.h>
  34 #include <linux/mtd/partitions.h>
  35 #include <linux/mmc/host.h>
  36 #include <linux/can/platform/ti_hecc.h>
  37
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41
  42 #include "common.h"
  43 #include <linux/platform_data/mtd-nand-omap2.h>
  44 #include "gpmc.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 #include "gpmc-nand.h"
  54
  55 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
  56 static struct gpio_led cm_t3517_leds[] = {
  57         [0] = {
  58                 .gpio                   = 186,
  59                 .name                   = "cm-t3517:green",
  60                 .default_trigger        = "heartbeat",
  61                 .active_low             = 0,
  62         },
  63 };
  64
  65 static struct gpio_led_platform_data cm_t3517_led_pdata = {
  66         .num_leds       = ARRAY_SIZE(cm_t3517_leds),
  67         .leds           = cm_t3517_leds,
  68 };
  69
  70 static struct platform_device cm_t3517_led_device = {
  71         .name           = "leds-gpio",
  72         .id             = -1,
  73         .dev            = {
  74                 .platform_data  = &cm_t3517_led_pdata,
  75         },
  76 };
  77
  78 static void __init cm_t3517_init_leds(void)
  79 {
  80         platform_device_register(&cm_t3517_led_device);
  81 }
  82 #else
  83 static inline void cm_t3517_init_leds(void) {}
  84 #endif
  85
  86 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
  87 static struct resource cm_t3517_hecc_resources[] = {
  88         {
  89                 .start  = AM35XX_IPSS_HECC_BASE,
  90                 .end    = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
  91                 .flags  = IORESOURCE_MEM,
  92         },
  93         {
  94                 .start  = 24 + OMAP_INTC_START,
  95                 .flags  = IORESOURCE_IRQ,
  96         },
  97 };
  98
  99 static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
 100         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
 101         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
 102         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
 103         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
 104         .int_line               = AM35XX_HECC_INT_LINE,
 105         .version                = AM35XX_HECC_VERSION,
 106 };
 107
 108 static struct platform_device cm_t3517_hecc_device = {
 109         .name           = "ti_hecc",
 110         .id             = 1,
 111         .num_resources  = ARRAY_SIZE(cm_t3517_hecc_resources),
 112         .resource       = cm_t3517_hecc_resources,
 113         .dev            = {
 114                 .platform_data  = &cm_t3517_hecc_pdata,
 115         },
 116 };
 117
 118 static void cm_t3517_init_hecc(void)
 119 {
 120         platform_device_register(&cm_t3517_hecc_device);
 121 }
 122 #else
 123 static inline void cm_t3517_init_hecc(void) {}
 124 #endif
 125
 126 #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
 127 static struct omap2_hsmmc_info cm_t3517_mmc[] = {
 128         {
 129                 .mmc            = 1,
 130                 .caps           = MMC_CAP_4_BIT_DATA,
 131                 .gpio_cd        = 144,
 132                 .gpio_wp        = 59,
 133         },
 134         {
 135                 .mmc            = 2,
 136                 .caps           = MMC_CAP_4_BIT_DATA,
 137                 .gpio_cd        = -EINVAL,
 138                 .gpio_wp        = -EINVAL,
 139         },
 140         {}      /* Terminator */
 141 };
 142 #else
 143 #define cm_t3517_mmc NULL
 144 #endif
 145
 146 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 147 #define RTC_IO_GPIO             (153)
 148 #define RTC_WR_GPIO             (154)
 149 #define RTC_RD_GPIO             (53)
 150 #define RTC_CS_GPIO             (163)
 151 #define RTC_CS_EN_GPIO          (160)
 152
 153 struct v3020_platform_data cm_t3517_v3020_pdata = {
 154         .use_gpio       = 1,
 155         .gpio_cs        = RTC_CS_GPIO,
 156         .gpio_wr        = RTC_WR_GPIO,
 157         .gpio_rd        = RTC_RD_GPIO,
 158         .gpio_io        = RTC_IO_GPIO,
 159 };
 160
 161 static struct platform_device cm_t3517_rtc_device = {
 162         .name           = "v3020",
 163         .id             = -1,
 164         .dev            = {
 165                 .platform_data = &cm_t3517_v3020_pdata,
 166         }
 167 };
 168
 169 static void __init cm_t3517_init_rtc(void)
 170 {
 171         int err;
 172
 173         err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
 174                                "rtc cs en");
 175         if (err) {
 176                 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
 177                 return;
 178         }
 179
 180         platform_device_register(&cm_t3517_rtc_device);
 181 }
 182 #else
 183 static inline void cm_t3517_init_rtc(void) {}
 184 #endif
 185
 186 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 187 #define HSUSB1_RESET_GPIO       (146)
 188 #define HSUSB2_RESET_GPIO       (147)
 189 #define USB_HUB_RESET_GPIO      (152)
 190
 191 static struct usbhs_omap_platform_data cm_t3517_ehci_pdata __initdata = {
 192         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 193         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 194         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 195
 196         .phy_reset  = true,
 197         .reset_gpio_port[0]  = HSUSB1_RESET_GPIO,
 198         .reset_gpio_port[1]  = HSUSB2_RESET_GPIO,
 199         .reset_gpio_port[2]  = -EINVAL,
 200 };
 201
 202 static int __init cm_t3517_init_usbh(void)
 203 {
 204         int err;
 205
 206         err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
 207                                "usb hub rst");
 208         if (err) {
 209                 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
 210         } else {
 211                 udelay(10);
 212                 gpio_set_value(USB_HUB_RESET_GPIO, 1);
 213                 msleep(1);
 214         }
 215
 216         usbhs_init(&cm_t3517_ehci_pdata);
 217
 218         return 0;
 219 }
 220 #else
 221 static inline int cm_t3517_init_usbh(void)
 222 {
 223         return 0;
 224 }
 225 #endif
 226
 227 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 228 static struct mtd_partition cm_t3517_nand_partitions[] = {
 229         {
 230                 .name           = "xloader",
 231                 .offset         = 0,                    /* Offset = 0x00000 */
 232                 .size           = 4 * NAND_BLOCK_SIZE,
 233                 .mask_flags     = MTD_WRITEABLE
 234         },
 235         {
 236                 .name           = "uboot",
 237                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 238                 .size           = 15 * NAND_BLOCK_SIZE,
 239         },
 240         {
 241                 .name           = "uboot environment",
 242                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 243                 .size           = 2 * NAND_BLOCK_SIZE,
 244         },
 245         {
 246                 .name           = "linux",
 247                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2A0000 */
 248                 .size           = 32 * NAND_BLOCK_SIZE,
 249         },
 250         {
 251                 .name           = "rootfs",
 252                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x6A0000 */
 253                 .size           = MTDPART_SIZ_FULL,
 254         },
 255 };
 256
 257 static struct omap_nand_platform_data cm_t3517_nand_data = {
 258         .parts                  = cm_t3517_nand_partitions,
 259         .nr_parts               = ARRAY_SIZE(cm_t3517_nand_partitions),
 260         .cs                     = 0,
 261 };
 262
 263 static void __init cm_t3517_init_nand(void)
 264 {
 265         if (gpmc_nand_init(&cm_t3517_nand_data, NULL) < 0)
 266                 pr_err("CM-T3517: NAND initialization failed\n");
 267 }
 268 #else
 269 static inline void cm_t3517_init_nand(void) {}
 270 #endif
 271
 272 #ifdef CONFIG_OMAP_MUX
 273 static struct omap_board_mux board_mux[] __initdata = {
 274         /* GPIO186 - Green LED */
 275         OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 276
 277         /* RTC GPIOs: */
 278         /* IO - GPIO153 */
 279         OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 280         /* WR# - GPIO154 */
 281         OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 282         /* RD# - GPIO53 */
 283         OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 284         /* CS# - GPIO163 */
 285         OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 286         /* CS EN - GPIO160 */
 287         OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 288
 289         /* HSUSB1 RESET */
 290         OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 291         /* HSUSB2 RESET */
 292         OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 293         /* CM-T3517 USB HUB nRESET */
 294         OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 295
 296         /* CD - GPIO144 and WP - GPIO59 for MMC1 - SB-T35 */
 297         OMAP3_MUX(UART2_CTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
 298         OMAP3_MUX(GPMC_CLK, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
 299
 300         { .reg_offset = OMAP_MUX_TERMINATOR },
 301 };
 302 #endif
 303
 304 static void __init cm_t3517_init(void)
 305 {
 306         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 307         omap_serial_init();
 308         omap_sdrc_init(NULL, NULL);
 309         cm_t3517_init_leds();
 310         cm_t3517_init_nand();
 311         cm_t3517_init_rtc();
 312         cm_t3517_init_usbh();
 313         cm_t3517_init_hecc();
 314         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 315         omap_hsmmc_init(cm_t3517_mmc);
 316 }
 317
 318 MACHINE_START(CM_T3517, "Compulab CM-T3517")
 319         .atag_offset    = 0x100,
 320         .reserve        = omap_reserve,
 321         .map_io         = omap3_map_io,
 322         .init_early     = am35xx_init_early,
 323         .init_irq       = omap3_init_irq,
 324         .handle_irq     = omap3_intc_handle_irq,
 325         .init_machine   = cm_t3517_init,
 326         .init_late      = am35xx_init_late,
 327         .init_time      = omap3_gptimer_timer_init,
 328         .restart        = omap3xxx_restart,
 329 MACHINE_END