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
  53 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
  54 static struct gpio_led cm_t3517_leds[] = {
  55         [0] = {
  56                 .gpio                   = 186,
  57                 .name                   = "cm-t3517:green",
  58                 .default_trigger        = "heartbeat",
  59                 .active_low             = 0,
  60         },
  61 };
  62
  63 static struct gpio_led_platform_data cm_t3517_led_pdata = {
  64         .num_leds       = ARRAY_SIZE(cm_t3517_leds),
  65         .leds           = cm_t3517_leds,
  66 };
  67
  68 static struct platform_device cm_t3517_led_device = {
  69         .name           = "leds-gpio",
  70         .id             = -1,
  71         .dev            = {
  72                 .platform_data  = &cm_t3517_led_pdata,
  73         },
  74 };
  75
  76 static void __init cm_t3517_init_leds(void)
  77 {
  78         platform_device_register(&cm_t3517_led_device);
  79 }
  80 #else
  81 static inline void cm_t3517_init_leds(void) {}
  82 #endif
  83
  84 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
  85 static struct resource cm_t3517_hecc_resources[] = {
  86         {
  87                 .start  = AM35XX_IPSS_HECC_BASE,
  88                 .end    = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
  89                 .flags  = IORESOURCE_MEM,
  90         },
  91         {
  92                 .start  = INT_35XX_HECC0_IRQ,
  93                 .end    = INT_35XX_HECC0_IRQ,
  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_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 126 #define RTC_IO_GPIO             (153)
 127 #define RTC_WR_GPIO             (154)
 128 #define RTC_RD_GPIO             (53)
 129 #define RTC_CS_GPIO             (163)
 130 #define RTC_CS_EN_GPIO          (160)
 131
 132 struct v3020_platform_data cm_t3517_v3020_pdata = {
 133         .use_gpio       = 1,
 134         .gpio_cs        = RTC_CS_GPIO,
 135         .gpio_wr        = RTC_WR_GPIO,
 136         .gpio_rd        = RTC_RD_GPIO,
 137         .gpio_io        = RTC_IO_GPIO,
 138 };
 139
 140 static struct platform_device cm_t3517_rtc_device = {
 141         .name           = "v3020",
 142         .id             = -1,
 143         .dev            = {
 144                 .platform_data = &cm_t3517_v3020_pdata,
 145         }
 146 };
 147
 148 static void __init cm_t3517_init_rtc(void)
 149 {
 150         int err;
 151
 152         err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
 153                                "rtc cs en");
 154         if (err) {
 155                 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
 156                 return;
 157         }
 158
 159         platform_device_register(&cm_t3517_rtc_device);
 160 }
 161 #else
 162 static inline void cm_t3517_init_rtc(void) {}
 163 #endif
 164
 165 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 166 #define HSUSB1_RESET_GPIO       (146)
 167 #define HSUSB2_RESET_GPIO       (147)
 168 #define USB_HUB_RESET_GPIO      (152)
 169
 170 static struct usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = {
 171         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 172         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 173         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 174
 175         .phy_reset  = true,
 176         .reset_gpio_port[0]  = HSUSB1_RESET_GPIO,
 177         .reset_gpio_port[1]  = HSUSB2_RESET_GPIO,
 178         .reset_gpio_port[2]  = -EINVAL,
 179 };
 180
 181 static int __init cm_t3517_init_usbh(void)
 182 {
 183         int err;
 184
 185         err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
 186                                "usb hub rst");
 187         if (err) {
 188                 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
 189         } else {
 190                 udelay(10);
 191                 gpio_set_value(USB_HUB_RESET_GPIO, 1);
 192                 msleep(1);
 193         }
 194
 195         usbhs_init(&cm_t3517_ehci_pdata);
 196
 197         return 0;
 198 }
 199 #else
 200 static inline int cm_t3517_init_usbh(void)
 201 {
 202         return 0;
 203 }
 204 #endif
 205
 206 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
 207 static struct mtd_partition cm_t3517_nand_partitions[] = {
 208         {
 209                 .name           = "xloader",
 210                 .offset         = 0,                    /* Offset = 0x00000 */
 211                 .size           = 4 * NAND_BLOCK_SIZE,
 212                 .mask_flags     = MTD_WRITEABLE
 213         },
 214         {
 215                 .name           = "uboot",
 216                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 217                 .size           = 15 * NAND_BLOCK_SIZE,
 218         },
 219         {
 220                 .name           = "uboot environment",
 221                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 222                 .size           = 2 * NAND_BLOCK_SIZE,
 223         },
 224         {
 225                 .name           = "linux",
 226                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2A0000 */
 227                 .size           = 32 * NAND_BLOCK_SIZE,
 228         },
 229         {
 230                 .name           = "rootfs",
 231                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x6A0000 */
 232                 .size           = MTDPART_SIZ_FULL,
 233         },
 234 };
 235
 236 static struct omap_nand_platform_data cm_t3517_nand_data = {
 237         .parts                  = cm_t3517_nand_partitions,
 238         .nr_parts               = ARRAY_SIZE(cm_t3517_nand_partitions),
 239         .cs                     = 0,
 240 };
 241
 242 static void __init cm_t3517_init_nand(void)
 243 {
 244         if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
 245                 pr_err("CM-T3517: NAND initialization failed\n");
 246 }
 247 #else
 248 static inline void cm_t3517_init_nand(void) {}
 249 #endif
 250
 251 static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
 252 };
 253
 254 #ifdef CONFIG_OMAP_MUX
 255 static struct omap_board_mux board_mux[] __initdata = {
 256         /* GPIO186 - Green LED */
 257         OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 258
 259         /* RTC GPIOs: */
 260         /* IO - GPIO153 */
 261         OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 262         /* WR# - GPIO154 */
 263         OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 264         /* RD# - GPIO53 */
 265         OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 266         /* CS# - GPIO163 */
 267         OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 268         /* CS EN - GPIO160 */
 269         OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
 270
 271         /* HSUSB1 RESET */
 272         OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 273         /* HSUSB2 RESET */
 274         OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 275         /* CM-T3517 USB HUB nRESET */
 276         OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
 277
 278         { .reg_offset = OMAP_MUX_TERMINATOR },
 279 };
 280 #endif
 281
 282 static void __init cm_t3517_init(void)
 283 {
 284         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 285         omap_serial_init();
 286         omap_sdrc_init(NULL, NULL);
 287         omap_board_config = cm_t3517_config;
 288         omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
 289         cm_t3517_init_leds();
 290         cm_t3517_init_nand();
 291         cm_t3517_init_rtc();
 292         cm_t3517_init_usbh();
 293         cm_t3517_init_hecc();
 294 }
 295
 296 MACHINE_START(CM_T3517, "Compulab CM-T3517")
 297         .atag_offset    = 0x100,
 298         .reserve        = omap_reserve,
 299         .map_io         = omap3_map_io,
 300         .init_early     = am35xx_init_early,
 301         .init_irq       = omap3_init_irq,
 302         .handle_irq     = omap3_intc_handle_irq,
 303         .init_machine   = cm_t3517_init,
 304         .timer          = &omap3_timer,
 305         .restart        = omap_prcm_restart,
 306 MACHINE_END