arch/arm/mach-mx3/armadillo5x0.c

   1 /*
   2  * armadillo5x0.c
   3  *
   4  * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
   5  * updates in http://alberdroid.blogspot.com/
   6  *
   7  * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
   8  * Based on mx31ads.c and pcm037.c Great Work!
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  23  * MA 02110-1301, USA.
  24  */
  25
  26 #include <linux/types.h>
  27 #include <linux/init.h>
  28 #include <linux/clk.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/gpio.h>
  31 #include <linux/smsc911x.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/irq.h>
  34 #include <linux/mtd/physmap.h>
  35 #include <linux/io.h>
  36 #include <linux/input.h>
  37 #include <linux/gpio_keys.h>
  38 #include <linux/i2c.h>
  39
  40 #include <mach/hardware.h>
  41 #include <asm/mach-types.h>
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/time.h>
  44 #include <asm/memory.h>
  45 #include <asm/mach/map.h>
  46
  47 #include <mach/common.h>
  48 #include <mach/imx-uart.h>
  49 #include <mach/iomux-mx3.h>
  50 #include <mach/board-armadillo5x0.h>
  51 #include <mach/mmc.h>
  52 #include <mach/ipu.h>
  53 #include <mach/mx3fb.h>
  54 #include <mach/mxc_nand.h>
  55
  56 #include "devices.h"
  57 #include "crm_regs.h"
  58
  59 static int armadillo5x0_pins[] = {
  60         /* UART1 */
  61         MX31_PIN_CTS1__CTS1,
  62         MX31_PIN_RTS1__RTS1,
  63         MX31_PIN_TXD1__TXD1,
  64         MX31_PIN_RXD1__RXD1,
  65         /* UART2 */
  66         MX31_PIN_CTS2__CTS2,
  67         MX31_PIN_RTS2__RTS2,
  68         MX31_PIN_TXD2__TXD2,
  69         MX31_PIN_RXD2__RXD2,
  70         /* LAN9118_IRQ */
  71         IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
  72         /* SDHC1 */
  73         MX31_PIN_SD1_DATA3__SD1_DATA3,
  74         MX31_PIN_SD1_DATA2__SD1_DATA2,
  75         MX31_PIN_SD1_DATA1__SD1_DATA1,
  76         MX31_PIN_SD1_DATA0__SD1_DATA0,
  77         MX31_PIN_SD1_CLK__SD1_CLK,
  78         MX31_PIN_SD1_CMD__SD1_CMD,
  79         /* Framebuffer */
  80         MX31_PIN_LD0__LD0,
  81         MX31_PIN_LD1__LD1,
  82         MX31_PIN_LD2__LD2,
  83         MX31_PIN_LD3__LD3,
  84         MX31_PIN_LD4__LD4,
  85         MX31_PIN_LD5__LD5,
  86         MX31_PIN_LD6__LD6,
  87         MX31_PIN_LD7__LD7,
  88         MX31_PIN_LD8__LD8,
  89         MX31_PIN_LD9__LD9,
  90         MX31_PIN_LD10__LD10,
  91         MX31_PIN_LD11__LD11,
  92         MX31_PIN_LD12__LD12,
  93         MX31_PIN_LD13__LD13,
  94         MX31_PIN_LD14__LD14,
  95         MX31_PIN_LD15__LD15,
  96         MX31_PIN_LD16__LD16,
  97         MX31_PIN_LD17__LD17,
  98         MX31_PIN_VSYNC3__VSYNC3,
  99         MX31_PIN_HSYNC__HSYNC,
 100         MX31_PIN_FPSHIFT__FPSHIFT,
 101         MX31_PIN_DRDY0__DRDY0,
 102         IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
 103         /* I2C2 */
 104         MX31_PIN_CSPI2_MOSI__SCL,
 105         MX31_PIN_CSPI2_MISO__SDA,
 106 };
 107
 108 /* RTC over I2C*/
 109 #define ARMADILLO5X0_RTC_GPIO   IOMUX_TO_GPIO(MX31_PIN_SRXD4)
 110
 111 static struct i2c_board_info armadillo5x0_i2c_rtc = {
 112         I2C_BOARD_INFO("s35390a", 0x30),
 113 };
 114
 115 /* GPIO BUTTONS */
 116 static struct gpio_keys_button armadillo5x0_buttons[] = {
 117         {
 118                 .code           = KEY_ENTER, /*28*/
 119                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
 120                 .active_low     = 1,
 121                 .desc           = "menu",
 122                 .wakeup         = 1,
 123         }, {
 124                 .code           = KEY_BACK, /*158*/
 125                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SRST0),
 126                 .active_low     = 1,
 127                 .desc           = "back",
 128                 .wakeup         = 1,
 129         }
 130 };
 131
 132 static struct gpio_keys_platform_data armadillo5x0_button_data = {
 133         .buttons        = armadillo5x0_buttons,
 134         .nbuttons       = ARRAY_SIZE(armadillo5x0_buttons),
 135 };
 136
 137 static struct platform_device armadillo5x0_button_device = {
 138         .name           = "gpio-keys",
 139         .id             = -1,
 140         .num_resources  = 0,
 141         .dev            = {
 142                 .platform_data  = &armadillo5x0_button_data,
 143         }
 144 };
 145
 146 /*
 147  * NAND Flash
 148  */
 149 static struct mxc_nand_platform_data armadillo5x0_nand_flash_pdata = {
 150         .width          = 1,
 151         .hw_ecc         = 1,
 152 };
 153
 154 /*
 155  * MTD NOR Flash
 156  */
 157 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
 158         {
 159                 .name           = "nor.bootloader",
 160                 .offset         = 0x00000000,
 161                 .size           = 4*32*1024,
 162         }, {
 163                 .name           = "nor.kernel",
 164                 .offset         = MTDPART_OFS_APPEND,
 165                 .size           = 16*128*1024,
 166         }, {
 167                 .name           = "nor.userland",
 168                 .offset         = MTDPART_OFS_APPEND,
 169                 .size           = 110*128*1024,
 170         }, {
 171                 .name           = "nor.config",
 172                 .offset         = MTDPART_OFS_APPEND,
 173                 .size           = 1*128*1024,
 174         },
 175 };
 176
 177 static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
 178         .width          = 2,
 179         .parts          = armadillo5x0_nor_flash_partitions,
 180         .nr_parts       = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
 181 };
 182
 183 static struct resource armadillo5x0_nor_flash_resource = {
 184         .flags          = IORESOURCE_MEM,
 185         .start          = CS0_BASE_ADDR,
 186         .end            = CS0_BASE_ADDR + SZ_64M - 1,
 187 };
 188
 189 static struct platform_device armadillo5x0_nor_flash = {
 190         .name                   = "physmap-flash",
 191         .id                     = -1,
 192         .num_resources          = 1,
 193         .resource               = &armadillo5x0_nor_flash_resource,
 194 };
 195
 196 /*
 197  * FB support
 198  */
 199 static const struct fb_videomode fb_modedb[] = {
 200         {       /* 640x480 @ 60 Hz */
 201                 .name           = "CRT-VGA",
 202                 .refresh        = 60,
 203                 .xres           = 640,
 204                 .yres           = 480,
 205                 .pixclock       = 39721,
 206                 .left_margin    = 35,
 207                 .right_margin   = 115,
 208                 .upper_margin   = 43,
 209                 .lower_margin   = 1,
 210                 .hsync_len      = 10,
 211                 .vsync_len      = 1,
 212                 .sync           = FB_SYNC_OE_ACT_HIGH,
 213                 .vmode          = FB_VMODE_NONINTERLACED,
 214                 .flag           = 0,
 215         }, {/* 800x600 @ 56 Hz */
 216                 .name           = "CRT-SVGA",
 217                 .refresh        = 56,
 218                 .xres           = 800,
 219                 .yres           = 600,
 220                 .pixclock       = 30000,
 221                 .left_margin    = 30,
 222                 .right_margin   = 108,
 223                 .upper_margin   = 13,
 224                 .lower_margin   = 10,
 225                 .hsync_len      = 10,
 226                 .vsync_len      = 1,
 227                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
 228                                   FB_SYNC_VERT_HIGH_ACT,
 229                 .vmode          = FB_VMODE_NONINTERLACED,
 230                 .flag           = 0,
 231         },
 232 };
 233
 234 static struct ipu_platform_data mx3_ipu_data = {
 235         .irq_base = MXC_IPU_IRQ_START,
 236 };
 237
 238 static struct mx3fb_platform_data mx3fb_pdata = {
 239         .dma_dev        = &mx3_ipu.dev,
 240         .name           = "CRT-VGA",
 241         .mode           = fb_modedb,
 242         .num_modes      = ARRAY_SIZE(fb_modedb),
 243 };
 244
 245 /*
 246  * SDHC 1
 247  * MMC support
 248  */
 249 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
 250 {
 251         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 252 }
 253
 254 static int armadillo5x0_sdhc1_init(struct device *dev,
 255                                    irq_handler_t detect_irq, void *data)
 256 {
 257         int ret;
 258         int gpio_det, gpio_wp;
 259
 260         gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
 261         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
 262
 263         ret = gpio_request(gpio_det, "sdhc-card-detect");
 264         if (ret)
 265                 return ret;
 266
 267         gpio_direction_input(gpio_det);
 268
 269         ret = gpio_request(gpio_wp, "sdhc-write-protect");
 270         if (ret)
 271                 goto err_gpio_free;
 272
 273         gpio_direction_input(gpio_wp);
 274
 275         /* When supported the trigger type have to be BOTH */
 276         ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
 277                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 278                           "sdhc-detect", data);
 279
 280         if (ret)
 281                 goto err_gpio_free_2;
 282
 283         return 0;
 284
 285 err_gpio_free_2:
 286         gpio_free(gpio_wp);
 287
 288 err_gpio_free:
 289         gpio_free(gpio_det);
 290
 291         return ret;
 292
 293 }
 294
 295 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
 296 {
 297         free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
 298         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
 299         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 300 }
 301
 302 static struct imxmmc_platform_data sdhc_pdata = {
 303         .get_ro = armadillo5x0_sdhc1_get_ro,
 304         .init = armadillo5x0_sdhc1_init,
 305         .exit = armadillo5x0_sdhc1_exit,
 306 };
 307
 308 /*
 309  * SMSC 9118
 310  * Network support
 311  */
 312 static struct resource armadillo5x0_smc911x_resources[] = {
 313         {
 314                 .start  = CS3_BASE_ADDR,
 315                 .end    = CS3_BASE_ADDR + SZ_32M - 1,
 316                 .flags  = IORESOURCE_MEM,
 317         }, {
 318                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 319                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 320                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 321         },
 322 };
 323
 324 static struct smsc911x_platform_config smsc911x_info = {
 325         .flags          = SMSC911X_USE_16BIT,
 326         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 327         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 328 };
 329
 330 static struct platform_device armadillo5x0_smc911x_device = {
 331         .name           = "smsc911x",
 332         .id             = -1,
 333         .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
 334         .resource       = armadillo5x0_smc911x_resources,
 335         .dev            = {
 336                 .platform_data = &smsc911x_info,
 337         },
 338 };
 339
 340 /* UART device data */
 341 static struct imxuart_platform_data uart_pdata = {
 342         .flags = IMXUART_HAVE_RTSCTS,
 343 };
 344
 345 static struct platform_device *devices[] __initdata = {
 346         &armadillo5x0_smc911x_device,
 347         &mxc_i2c_device1,
 348         &armadillo5x0_button_device,
 349 };
 350
 351 /*
 352  * Perform board specific initializations
 353  */
 354 static void __init armadillo5x0_init(void)
 355 {
 356         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
 357                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
 358
 359         platform_add_devices(devices, ARRAY_SIZE(devices));
 360
 361         /* Register UART */
 362         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 363         mxc_register_device(&mxc_uart_device1, &uart_pdata);
 364
 365         /* SMSC9118 IRQ pin */
 366         gpio_direction_input(MX31_PIN_GPIO1_0);
 367
 368         /* Register SDHC */
 369         mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
 370
 371         /* Register FB */
 372         mxc_register_device(&mx3_ipu, &mx3_ipu_data);
 373         mxc_register_device(&mx3_fb, &mx3fb_pdata);
 374
 375         /* Register NOR Flash */
 376         mxc_register_device(&armadillo5x0_nor_flash,
 377                             &armadillo5x0_nor_flash_pdata);
 378
 379         /* Register NAND Flash */
 380         mxc_register_device(&mxc_nand_device, &armadillo5x0_nand_flash_pdata);
 381
 382         /* set NAND page size to 2k if not configured via boot mode pins */
 383         __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
 384
 385         /* RTC */
 386         /* Get RTC IRQ and register the chip */
 387         if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) {
 388                 if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0)
 389                         armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
 390                 else
 391                         gpio_free(ARMADILLO5X0_RTC_GPIO);
 392         }
 393         if (armadillo5x0_i2c_rtc.irq == 0)
 394                 pr_warning("armadillo5x0_init: failed to get RTC IRQ\n");
 395         i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
 396 }
 397
 398 static void __init armadillo5x0_timer_init(void)
 399 {
 400         mx31_clocks_init(26000000);
 401 }
 402
 403 static struct sys_timer armadillo5x0_timer = {
 404         .init   = armadillo5x0_timer_init,
 405 };
 406
 407 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
 408         /* Maintainer: Alberto Panizzo  */
 409         .phys_io        = AIPS1_BASE_ADDR,
 410         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 411         .boot_params    = PHYS_OFFSET + 0x00000100,
 412         .map_io         = mx31_map_io,
 413         .init_irq       = mx31_init_irq,
 414         .timer          = &armadillo5x0_timer,
 415         .init_machine   = armadillo5x0_init,
 416 MACHINE_END