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/can/platform/ti_hecc.h>
  36
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/map.h>
  40
  41 #include <plat/board.h>
  42 #include "common.h"
  43 #include <plat/usb.h>
  44 #include <plat/nand.h>
  45 #include <plat/gpmc.h>
  46
  47 #include <mach/am35xx.h>
  48
  49 #include "mux.h"
  50 #include "control.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  = INT_35XX_HECC0_IRQ,
  94                 .end    = INT_35XX_HECC0_IRQ,
  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_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 127 #define RTC_IO_GPIO             (153)
 128 #define RTC_WR_GPIO             (154)
 129 #define RTC_RD_GPIO             (53)
 130 #define RTC_CS_GPIO             (163)
 131 #define RTC_CS_EN_GPIO          (160)
 132
 133 struct v3020_platform_data cm_t3517_v3020_pdata = {
 134         .use_gpio       = 1,
 135         .gpio_cs        = RTC_CS_GPIO,
 136         .gpio_wr        = RTC_WR_GPIO,
 137         .gpio_rd        = RTC_RD_GPIO,
 138         .gpio_io        = RTC_IO_GPIO,
 139 };
 140
 141 static struct platform_device cm_t3517_rtc_device = {
 142         .name           = "v3020",
 143         .id             = -1,
 144         .dev            = {
 145                 .platform_data = &cm_t3517_v3020_pdata,
 146         }
 147 };
 148
 149 static void __init cm_t3517_init_rtc(void)
 150 {
 151         int err;
 152
 153         err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
 154                                "rtc cs en");
 155         if (err) {
 156                 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
 157                 return;
 158         }
 159
 160         platform_device_register(&cm_t3517_rtc_device);
 161 }
 162 #else
 163 static inline void cm_t3517_init_rtc(void) {}
 164 #endif
 165
 166 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 167 #define HSUSB1_RESET_GPIO       (146)
 168 #define HSUSB2_RESET_GPIO       (147)
 169 #define USB_HUB_RESET_GPIO      (152)
 170
 171 static struct usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = {
 172         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 173         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 174         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 175
 176         .phy_reset  = true,
 177         .reset_gpio_port[0]  = HSUSB1_RESET_GPIO,
 178         .reset_gpio_port[1]  = HSUSB2_RESET_GPIO,
 179         .reset_gpio_port[2]  = -EINVAL,
 180 };
 181
 182 static int __init cm_t3517_init_usbh(void)
 183 {
 184         int err;
 185
 186         err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
 187                                "usb hub rst");
 188         if (err) {
 189                 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
 190         } else {
 191                 udelay(10);
 192                 gpio_set_value(USB_HUB_RESET_GPIO, 1);
 193                 msleep(1);
 194         }
 195
 196         usbhs_init(&cm_t3517_ehci_pdata);
 197
 198         return 0;
 199 }
 200 #else
 201 static inline int cm_t3517_init_usbh(void)
 202 {
 203         return 0;
 204 }
 205 #endif
 206
 207 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 208 static struct mtd_partition cm_t3517_nand_partitions[] = {
 209         {
 210                 .name           = "xloader",
 211                 .offset         = 0,                    /* Offset = 0x00000 */
 212                 .size           = 4 * NAND_BLOCK_SIZE,
 213                 .mask_flags     = MTD_WRITEABLE
 214         },
 215         {
 216                 .name           = "uboot",
 217                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 218                 .size           = 15 * NAND_BLOCK_SIZE,
 219         },
 220         {
 221                 .name           = "uboot environment",
 222                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 223                 .size           = 2 * NAND_BLOCK_SIZE,
 224         },
 225         {
 226                 .name           = "linux",
 227                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2A0000 */
 228                 .size           = 32 * NAND_BLOCK_SIZE,
 229         },
 230         {
 231                 .name           = "rootfs",
 232                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x6A0000 */
 233                 .size           = MTDPART_SIZ_FULL,
 234         },
 235 };
 236
 237 static struct omap_nand_platform_data cm_t3517_nand_data = {
 238         .parts                  = cm_t3517_nand_partitions,
 239         .nr_parts               = ARRAY_SIZE(cm_t3517_nand_partitions),
 240         .cs                     = 0,
 241 };
 242
 243 static void __init cm_t3517_init_nand(void)
 244 {
 245         if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
 246                 pr_err("CM-T3517: NAND initialization failed\n");
 247 }
 248 #else
 249 static inline void cm_t3517_init_nand(void) {}
 250 #endif
 251
 252 static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
 253 };
 254
 255 #ifdef CONFIG_OMAP_MUX
 256 static struct omap_board_mux board_mux[] __initdata = {
 257         /* GPIO186 - Green LED */
 258         OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 259
 260         /* RTC GPIOs: */
 261         /* IO - GPIO153 */
 262         OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 263         /* WR# - GPIO154 */
 264         OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 265         /* RD# - GPIO53 */
 266         OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 267         /* CS# - GPIO163 */
 268         OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 269         /* CS EN - GPIO160 */
 270         OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 271
 272         /* HSUSB1 RESET */
 273         OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 274         /* HSUSB2 RESET */
 275         OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 276         /* CM-T3517 USB HUB nRESET */
 277         OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 278
 279         { .reg_offset = OMAP_MUX_TERMINATOR },
 280 };
 281 #endif
 282
 283 static void __init cm_t3517_init(void)
 284 {
 285         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 286         omap_serial_init();
 287         omap_sdrc_init(NULL, NULL);
 288         omap_board_config = cm_t3517_config;
 289         omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
 290         cm_t3517_init_leds();
 291         cm_t3517_init_nand();
 292         cm_t3517_init_rtc();
 293         cm_t3517_init_usbh();
 294         cm_t3517_init_hecc();
 295         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
 296 }
 297
 298 MACHINE_START(CM_T3517, "Compulab CM-T3517")
 299         .atag_offset    = 0x100,
 300         .reserve        = omap_reserve,
 301         .map_io         = omap3_map_io,
 302         .init_early     = am35xx_init_early,
 303         .init_irq       = omap3_init_irq,
 304         .handle_irq     = omap3_intc_handle_irq,
 305         .init_machine   = cm_t3517_init,
 306         .init_late      = am35xx_init_late,
 307         .timer          = &omap3_timer,
 308         .restart        = omap_prcm_restart,
 309 MACHINE_END