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
  39 #include <mach/hardware.h>
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/time.h>
  43 #include <asm/memory.h>
  44 #include <asm/mach/map.h>
  45
  46 #include <mach/common.h>
  47 #include <mach/imx-uart.h>
  48 #include <mach/iomux-mx3.h>
  49 #include <mach/board-armadillo5x0.h>
  50 #include <mach/mmc.h>
  51 #include <mach/ipu.h>
  52 #include <mach/mx3fb.h>
  53 #include <mach/mxc_nand.h>
  54
  55 #include "devices.h"
  56 #include "crm_regs.h"
  57
  58 static int armadillo5x0_pins[] = {
  59         /* UART1 */
  60         MX31_PIN_CTS1__CTS1,
  61         MX31_PIN_RTS1__RTS1,
  62         MX31_PIN_TXD1__TXD1,
  63         MX31_PIN_RXD1__RXD1,
  64         /* UART2 */
  65         MX31_PIN_CTS2__CTS2,
  66         MX31_PIN_RTS2__RTS2,
  67         MX31_PIN_TXD2__TXD2,
  68         MX31_PIN_RXD2__RXD2,
  69         /* LAN9118_IRQ */
  70         IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
  71         /* SDHC1 */
  72         MX31_PIN_SD1_DATA3__SD1_DATA3,
  73         MX31_PIN_SD1_DATA2__SD1_DATA2,
  74         MX31_PIN_SD1_DATA1__SD1_DATA1,
  75         MX31_PIN_SD1_DATA0__SD1_DATA0,
  76         MX31_PIN_SD1_CLK__SD1_CLK,
  77         MX31_PIN_SD1_CMD__SD1_CMD,
  78         /* Framebuffer */
  79         MX31_PIN_LD0__LD0,
  80         MX31_PIN_LD1__LD1,
  81         MX31_PIN_LD2__LD2,
  82         MX31_PIN_LD3__LD3,
  83         MX31_PIN_LD4__LD4,
  84         MX31_PIN_LD5__LD5,
  85         MX31_PIN_LD6__LD6,
  86         MX31_PIN_LD7__LD7,
  87         MX31_PIN_LD8__LD8,
  88         MX31_PIN_LD9__LD9,
  89         MX31_PIN_LD10__LD10,
  90         MX31_PIN_LD11__LD11,
  91         MX31_PIN_LD12__LD12,
  92         MX31_PIN_LD13__LD13,
  93         MX31_PIN_LD14__LD14,
  94         MX31_PIN_LD15__LD15,
  95         MX31_PIN_LD16__LD16,
  96         MX31_PIN_LD17__LD17,
  97         MX31_PIN_VSYNC3__VSYNC3,
  98         MX31_PIN_HSYNC__HSYNC,
  99         MX31_PIN_FPSHIFT__FPSHIFT,
 100         MX31_PIN_DRDY0__DRDY0,
 101         IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
 102 };
 103 /* GPIO BUTTONS */
 104 static struct gpio_keys_button armadillo5x0_buttons[] = {
 105         {
 106                 .code           = KEY_ENTER, /*28*/
 107                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
 108                 .active_low     = 1,
 109                 .desc           = "menu",
 110                 .wakeup         = 1,
 111         }, {
 112                 .code           = KEY_BACK, /*158*/
 113                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SRST0),
 114                 .active_low     = 1,
 115                 .desc           = "back",
 116                 .wakeup         = 1,
 117         }
 118 };
 119
 120 static struct gpio_keys_platform_data armadillo5x0_button_data = {
 121         .buttons        = armadillo5x0_buttons,
 122         .nbuttons       = ARRAY_SIZE(armadillo5x0_buttons),
 123 };
 124
 125 static struct platform_device armadillo5x0_button_device = {
 126         .name           = "gpio-keys",
 127         .id             = -1,
 128         .num_resources  = 0,
 129         .dev            = {
 130                 .platform_data  = &armadillo5x0_button_data,
 131         }
 132 };
 133
 134 /*
 135  * NAND Flash
 136  */
 137 static struct mxc_nand_platform_data armadillo5x0_nand_flash_pdata = {
 138         .width          = 1,
 139         .hw_ecc         = 1,
 140 };
 141
 142 /*
 143  * MTD NOR Flash
 144  */
 145 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
 146         {
 147                 .name           = "nor.bootloader",
 148                 .offset         = 0x00000000,
 149                 .size           = 4*32*1024,
 150         }, {
 151                 .name           = "nor.kernel",
 152                 .offset         = MTDPART_OFS_APPEND,
 153                 .size           = 16*128*1024,
 154         }, {
 155                 .name           = "nor.userland",
 156                 .offset         = MTDPART_OFS_APPEND,
 157                 .size           = 110*128*1024,
 158         }, {
 159                 .name           = "nor.config",
 160                 .offset         = MTDPART_OFS_APPEND,
 161                 .size           = 1*128*1024,
 162         },
 163 };
 164
 165 static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
 166         .width          = 2,
 167         .parts          = armadillo5x0_nor_flash_partitions,
 168         .nr_parts       = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
 169 };
 170
 171 static struct resource armadillo5x0_nor_flash_resource = {
 172         .flags          = IORESOURCE_MEM,
 173         .start          = CS0_BASE_ADDR,
 174         .end            = CS0_BASE_ADDR + SZ_64M - 1,
 175 };
 176
 177 static struct platform_device armadillo5x0_nor_flash = {
 178         .name                   = "physmap-flash",
 179         .id                     = -1,
 180         .num_resources          = 1,
 181         .resource               = &armadillo5x0_nor_flash_resource,
 182 };
 183
 184 /*
 185  * FB support
 186  */
 187 static const struct fb_videomode fb_modedb[] = {
 188         {       /* 640x480 @ 60 Hz */
 189                 .name           = "CRT-VGA",
 190                 .refresh        = 60,
 191                 .xres           = 640,
 192                 .yres           = 480,
 193                 .pixclock       = 39721,
 194                 .left_margin    = 35,
 195                 .right_margin   = 115,
 196                 .upper_margin   = 43,
 197                 .lower_margin   = 1,
 198                 .hsync_len      = 10,
 199                 .vsync_len      = 1,
 200                 .sync           = FB_SYNC_OE_ACT_HIGH,
 201                 .vmode          = FB_VMODE_NONINTERLACED,
 202                 .flag           = 0,
 203         }, {/* 800x600 @ 56 Hz */
 204                 .name           = "CRT-SVGA",
 205                 .refresh        = 56,
 206                 .xres           = 800,
 207                 .yres           = 600,
 208                 .pixclock       = 30000,
 209                 .left_margin    = 30,
 210                 .right_margin   = 108,
 211                 .upper_margin   = 13,
 212                 .lower_margin   = 10,
 213                 .hsync_len      = 10,
 214                 .vsync_len      = 1,
 215                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
 216                                   FB_SYNC_VERT_HIGH_ACT,
 217                 .vmode          = FB_VMODE_NONINTERLACED,
 218                 .flag           = 0,
 219         },
 220 };
 221
 222 static struct ipu_platform_data mx3_ipu_data = {
 223         .irq_base = MXC_IPU_IRQ_START,
 224 };
 225
 226 static struct mx3fb_platform_data mx3fb_pdata = {
 227         .dma_dev        = &mx3_ipu.dev,
 228         .name           = "CRT-VGA",
 229         .mode           = fb_modedb,
 230         .num_modes      = ARRAY_SIZE(fb_modedb),
 231 };
 232
 233 /*
 234  * SDHC 1
 235  * MMC support
 236  */
 237 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
 238 {
 239         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 240 }
 241
 242 static int armadillo5x0_sdhc1_init(struct device *dev,
 243                                    irq_handler_t detect_irq, void *data)
 244 {
 245         int ret;
 246         int gpio_det, gpio_wp;
 247
 248         gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
 249         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
 250
 251         ret = gpio_request(gpio_det, "sdhc-card-detect");
 252         if (ret)
 253                 return ret;
 254
 255         gpio_direction_input(gpio_det);
 256
 257         ret = gpio_request(gpio_wp, "sdhc-write-protect");
 258         if (ret)
 259                 goto err_gpio_free;
 260
 261         gpio_direction_input(gpio_wp);
 262
 263         /* When supported the trigger type have to be BOTH */
 264         ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
 265                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 266                           "sdhc-detect", data);
 267
 268         if (ret)
 269                 goto err_gpio_free_2;
 270
 271         return 0;
 272
 273 err_gpio_free_2:
 274         gpio_free(gpio_wp);
 275
 276 err_gpio_free:
 277         gpio_free(gpio_det);
 278
 279         return ret;
 280
 281 }
 282
 283 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
 284 {
 285         free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
 286         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
 287         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 288 }
 289
 290 static struct imxmmc_platform_data sdhc_pdata = {
 291         .get_ro = armadillo5x0_sdhc1_get_ro,
 292         .init = armadillo5x0_sdhc1_init,
 293         .exit = armadillo5x0_sdhc1_exit,
 294 };
 295
 296 /*
 297  * SMSC 9118
 298  * Network support
 299  */
 300 static struct resource armadillo5x0_smc911x_resources[] = {
 301         {
 302                 .start  = CS3_BASE_ADDR,
 303                 .end    = CS3_BASE_ADDR + SZ_32M - 1,
 304                 .flags  = IORESOURCE_MEM,
 305         }, {
 306                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 307                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 308                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 309         },
 310 };
 311
 312 static struct smsc911x_platform_config smsc911x_info = {
 313         .flags          = SMSC911X_USE_32BIT,
 314         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 315         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 316 };
 317
 318 static struct platform_device armadillo5x0_smc911x_device = {
 319         .name           = "smsc911x",
 320         .id             = -1,
 321         .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
 322         .resource       = armadillo5x0_smc911x_resources,
 323         .dev            = {
 324                 .platform_data = &smsc911x_info,
 325         },
 326 };
 327
 328 /* UART device data */
 329 static struct imxuart_platform_data uart_pdata = {
 330         .flags = IMXUART_HAVE_RTSCTS,
 331 };
 332
 333 static struct platform_device *devices[] __initdata = {
 334         &armadillo5x0_smc911x_device,
 335         &armadillo5x0_button_device,
 336 };
 337
 338 /*
 339  * Perform board specific initializations
 340  */
 341 static void __init armadillo5x0_init(void)
 342 {
 343         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
 344                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
 345
 346         platform_add_devices(devices, ARRAY_SIZE(devices));
 347
 348         /* Register UART */
 349         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 350         mxc_register_device(&mxc_uart_device1, &uart_pdata);
 351
 352         /* SMSC9118 IRQ pin */
 353         gpio_direction_input(MX31_PIN_GPIO1_0);
 354
 355         /* Register SDHC */
 356         mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
 357
 358         /* Register FB */
 359         mxc_register_device(&mx3_ipu, &mx3_ipu_data);
 360         mxc_register_device(&mx3_fb, &mx3fb_pdata);
 361
 362         /* Register NOR Flash */
 363         mxc_register_device(&armadillo5x0_nor_flash,
 364                             &armadillo5x0_nor_flash_pdata);
 365
 366         /* Register NAND Flash */
 367         mxc_register_device(&mxc_nand_device, &armadillo5x0_nand_flash_pdata);
 368
 369         /* set NAND page size to 2k if not configured via boot mode pins */
 370         __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
 371 }
 372
 373 static void __init armadillo5x0_timer_init(void)
 374 {
 375         mx31_clocks_init(26000000);
 376 }
 377
 378 static struct sys_timer armadillo5x0_timer = {
 379         .init   = armadillo5x0_timer_init,
 380 };
 381
 382 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
 383         /* Maintainer: Alberto Panizzo  */
 384         .phys_io        = AIPS1_BASE_ADDR,
 385         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 386         .boot_params    = PHYS_OFFSET + 0x00000100,
 387         .map_io         = mx31_map_io,
 388         .init_irq       = mx31_init_irq,
 389         .timer          = &armadillo5x0_timer,
 390         .init_machine   = armadillo5x0_init,
 391 MACHINE_END