arch/arm/mach-davinci/board-omapl138-hawk.c

   1 /*
   2  * Hawkboard.org based on TI's OMAP-L138 Platform
   3  *
   4  * Initial code: Syed Mohammed Khasim
   5  *
   6  * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com
   7  *
   8  * This file is licensed under the terms of the GNU General Public License
   9  * version 2. This program is licensed "as is" without any warranty of
  10  * any kind, whether express or implied.
  11  */
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/console.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/gpio.h>
  17 #include <linux/gpio/machine.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/mtd/rawnand.h>
  20 #include <linux/platform_data/gpio-davinci.h>
  21 #include <linux/platform_data/mtd-davinci.h>
  22 #include <linux/platform_data/mtd-davinci-aemif.h>
  23 #include <linux/platform_data/ti-aemif.h>
  24 #include <linux/regulator/machine.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28
  29 #include <mach/common.h>
  30 #include <mach/da8xx.h>
  31 #include <mach/mux.h>
  32
  33 #define HAWKBOARD_PHY_ID                "davinci_mdio-0:07"
  34
  35 #define DA850_USB1_VBUS_PIN             GPIO_TO_PIN(2, 4)
  36 #define DA850_USB1_OC_PIN               GPIO_TO_PIN(6, 13)
  37
  38 static short omapl138_hawk_mii_pins[] __initdata = {
  39         DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
  40         DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
  41         DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
  42         DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
  43         DA850_MDIO_D,
  44         -1
  45 };
  46
  47 static __init void omapl138_hawk_config_emac(void)
  48 {
  49         void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
  50         int ret;
  51         u32 val;
  52         struct davinci_soc_info *soc_info = &davinci_soc_info;
  53
  54         val = __raw_readl(cfgchip3);
  55         val &= ~BIT(8);
  56         ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
  57         if (ret) {
  58                 pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
  59                 return;
  60         }
  61
  62         /* configure the CFGCHIP3 register for MII */
  63         __raw_writel(val, cfgchip3);
  64         pr_info("EMAC: MII PHY configured\n");
  65
  66         soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
  67
  68         ret = da8xx_register_emac();
  69         if (ret)
  70                 pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
  71 }
  72
  73 /*
  74  * The following EDMA channels/slots are not being used by drivers (for
  75  * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
  76  * hence they are being reserved for codecs on the DSP side.
  77  */
  78 static const s16 da850_dma0_rsv_chans[][2] = {
  79         /* (offset, number) */
  80         { 8,  6},
  81         {24,  4},
  82         {30,  2},
  83         {-1, -1}
  84 };
  85
  86 static const s16 da850_dma0_rsv_slots[][2] = {
  87         /* (offset, number) */
  88         { 8,  6},
  89         {24,  4},
  90         {30, 50},
  91         {-1, -1}
  92 };
  93
  94 static const s16 da850_dma1_rsv_chans[][2] = {
  95         /* (offset, number) */
  96         { 0, 28},
  97         {30,  2},
  98         {-1, -1}
  99 };
 100
 101 static const s16 da850_dma1_rsv_slots[][2] = {
 102         /* (offset, number) */
 103         { 0, 28},
 104         {30, 90},
 105         {-1, -1}
 106 };
 107
 108 static struct edma_rsv_info da850_edma_cc0_rsv = {
 109         .rsv_chans      = da850_dma0_rsv_chans,
 110         .rsv_slots      = da850_dma0_rsv_slots,
 111 };
 112
 113 static struct edma_rsv_info da850_edma_cc1_rsv = {
 114         .rsv_chans      = da850_dma1_rsv_chans,
 115         .rsv_slots      = da850_dma1_rsv_slots,
 116 };
 117
 118 static struct edma_rsv_info *da850_edma_rsv[2] = {
 119         &da850_edma_cc0_rsv,
 120         &da850_edma_cc1_rsv,
 121 };
 122
 123 static const short hawk_mmcsd0_pins[] = {
 124         DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
 125         DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
 126         DA850_GPIO3_12, DA850_GPIO3_13,
 127         -1
 128 };
 129
 130 #define DA850_HAWK_MMCSD_CD_PIN         GPIO_TO_PIN(3, 12)
 131 #define DA850_HAWK_MMCSD_WP_PIN         GPIO_TO_PIN(3, 13)
 132
 133 static struct gpiod_lookup_table mmc_gpios_table = {
 134         .dev_id = "da830-mmc.0",
 135         .table = {
 136                 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN, "cd",
 137                             GPIO_ACTIVE_LOW),
 138                 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN, "wp",
 139                             GPIO_ACTIVE_LOW),
 140         },
 141 };
 142
 143 static struct davinci_mmc_config da850_mmc_config = {
 144         .wires          = 4,
 145         .max_freq       = 50000000,
 146         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 147 };
 148
 149 static __init void omapl138_hawk_mmc_init(void)
 150 {
 151         int ret;
 152
 153         ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
 154         if (ret) {
 155                 pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
 156                 return;
 157         }
 158
 159         gpiod_add_lookup_table(&mmc_gpios_table);
 160
 161         ret = da8xx_register_mmcsd0(&da850_mmc_config);
 162         if (ret) {
 163                 pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
 164                 goto mmc_setup_mmcsd_fail;
 165         }
 166
 167         return;
 168
 169 mmc_setup_mmcsd_fail:
 170         gpiod_remove_lookup_table(&mmc_gpios_table);
 171 }
 172
 173 static struct mtd_partition omapl138_hawk_nandflash_partition[] = {
 174         {
 175                 .name           = "u-boot env",
 176                 .offset         = 0,
 177                 .size           = SZ_128K,
 178                 .mask_flags     = MTD_WRITEABLE,
 179          },
 180         {
 181                 .name           = "u-boot",
 182                 .offset         = MTDPART_OFS_APPEND,
 183                 .size           = SZ_512K,
 184                 .mask_flags     = MTD_WRITEABLE,
 185         },
 186         {
 187                 .name           = "free space",
 188                 .offset         = MTDPART_OFS_APPEND,
 189                 .size           = MTDPART_SIZ_FULL,
 190                 .mask_flags     = 0,
 191         },
 192 };
 193
 194 static struct davinci_aemif_timing omapl138_hawk_nandflash_timing = {
 195         .wsetup         = 24,
 196         .wstrobe        = 21,
 197         .whold          = 14,
 198         .rsetup         = 19,
 199         .rstrobe        = 50,
 200         .rhold          = 0,
 201         .ta             = 20,
 202 };
 203
 204 static struct davinci_nand_pdata omapl138_hawk_nandflash_data = {
 205         .core_chipsel   = 1,
 206         .parts          = omapl138_hawk_nandflash_partition,
 207         .nr_parts       = ARRAY_SIZE(omapl138_hawk_nandflash_partition),
 208         .ecc_mode       = NAND_ECC_HW,
 209         .ecc_bits       = 4,
 210         .bbt_options    = NAND_BBT_USE_FLASH,
 211         .options        = NAND_BUSWIDTH_16,
 212         .timing         = &omapl138_hawk_nandflash_timing,
 213         .mask_chipsel   = 0,
 214         .mask_ale       = 0,
 215         .mask_cle       = 0,
 216 };
 217
 218 static struct resource omapl138_hawk_nandflash_resource[] = {
 219         {
 220                 .start  = DA8XX_AEMIF_CS3_BASE,
 221                 .end    = DA8XX_AEMIF_CS3_BASE + SZ_32M,
 222                 .flags  = IORESOURCE_MEM,
 223         },
 224         {
 225                 .start  = DA8XX_AEMIF_CTL_BASE,
 226                 .end    = DA8XX_AEMIF_CTL_BASE + SZ_32K,
 227                 .flags  = IORESOURCE_MEM,
 228         },
 229 };
 230
 231 static struct resource omapl138_hawk_aemif_resource[] = {
 232         {
 233                 .start  = DA8XX_AEMIF_CTL_BASE,
 234                 .end    = DA8XX_AEMIF_CTL_BASE + SZ_32K,
 235                 .flags  = IORESOURCE_MEM,
 236         }
 237 };
 238
 239 static struct aemif_abus_data omapl138_hawk_aemif_abus_data[] = {
 240         {
 241                 .cs     = 3,
 242         }
 243 };
 244
 245 static struct platform_device omapl138_hawk_aemif_devices[] = {
 246         {
 247                 .name           = "davinci_nand",
 248                 .id             = -1,
 249                 .dev            = {
 250                         .platform_data  = &omapl138_hawk_nandflash_data,
 251                 },
 252                 .resource       = omapl138_hawk_nandflash_resource,
 253                 .num_resources  = ARRAY_SIZE(omapl138_hawk_nandflash_resource),
 254         }
 255 };
 256
 257 static struct aemif_platform_data omapl138_hawk_aemif_pdata = {
 258         .cs_offset = 2,
 259         .abus_data = omapl138_hawk_aemif_abus_data,
 260         .num_abus_data = ARRAY_SIZE(omapl138_hawk_aemif_abus_data),
 261         .sub_devices = omapl138_hawk_aemif_devices,
 262         .num_sub_devices = ARRAY_SIZE(omapl138_hawk_aemif_devices),
 263 };
 264
 265 static struct platform_device omapl138_hawk_aemif_device = {
 266         .name           = "ti-aemif",
 267         .id             = -1,
 268         .dev = {
 269                 .platform_data  = &omapl138_hawk_aemif_pdata,
 270         },
 271         .resource       = omapl138_hawk_aemif_resource,
 272         .num_resources  = ARRAY_SIZE(omapl138_hawk_aemif_resource),
 273 };
 274
 275 static const short omapl138_hawk_nand_pins[] = {
 276         DA850_EMA_WAIT_1, DA850_NEMA_OE, DA850_NEMA_WE, DA850_NEMA_CS_3,
 277         DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
 278         DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
 279         DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
 280         DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
 281         DA850_EMA_A_1, DA850_EMA_A_2,
 282         -1
 283 };
 284
 285 static int omapl138_hawk_register_aemif(void)
 286 {
 287         int ret;
 288
 289         ret = davinci_cfg_reg_list(omapl138_hawk_nand_pins);
 290         if (ret)
 291                 pr_warn("%s: NAND mux setup failed: %d\n", __func__, ret);
 292
 293         return platform_device_register(&omapl138_hawk_aemif_device);
 294 }
 295
 296 static const short da850_hawk_usb11_pins[] = {
 297         DA850_GPIO2_4, DA850_GPIO6_13,
 298         -1
 299 };
 300
 301 static struct gpiod_lookup_table hawk_usb_gpio_lookup = {
 302         .dev_id         = "ohci-da8xx",
 303         .table = {
 304                 GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, "vbus", 0),
 305                 GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN, "oc", 0),
 306         },
 307 };
 308
 309 static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
 310         /* TPS2087 switch @ 5V */
 311         .potpgt         = (3 + 1) / 2,  /* 3 ms max */
 312 };
 313
 314 static __init void omapl138_hawk_usb_init(void)
 315 {
 316         int ret;
 317
 318         ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
 319         if (ret) {
 320                 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
 321                 return;
 322         }
 323
 324         ret = da8xx_register_usb_phy_clocks();
 325         if (ret)
 326                 pr_warn("%s: USB PHY CLK registration failed: %d\n",
 327                         __func__, ret);
 328
 329         ret = da8xx_register_usb_phy();
 330         if (ret)
 331                 pr_warn("%s: USB PHY registration failed: %d\n",
 332                         __func__, ret);
 333
 334         gpiod_add_lookup_table(&hawk_usb_gpio_lookup);
 335
 336         ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
 337         if (ret)
 338                 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
 339
 340         return;
 341 }
 342
 343 static __init void omapl138_hawk_init(void)
 344 {
 345         int ret;
 346
 347         da850_register_clocks();
 348
 349         ret = da850_register_gpio();
 350         if (ret)
 351                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 352
 353         davinci_serial_init(da8xx_serial_device);
 354
 355         omapl138_hawk_config_emac();
 356
 357         ret = da850_register_edma(da850_edma_rsv);
 358         if (ret)
 359                 pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
 360
 361         omapl138_hawk_mmc_init();
 362
 363         omapl138_hawk_usb_init();
 364
 365         ret = omapl138_hawk_register_aemif();
 366         if (ret)
 367                 pr_warn("%s: aemif registration failed: %d\n", __func__, ret);
 368
 369         ret = da8xx_register_watchdog();
 370         if (ret)
 371                 pr_warn("%s: watchdog registration failed: %d\n",
 372                         __func__, ret);
 373
 374         ret = da8xx_register_rproc();
 375         if (ret)
 376                 pr_warn("%s: dsp/rproc registration failed: %d\n",
 377                         __func__, ret);
 378
 379         regulator_has_full_constraints();
 380 }
 381
 382 #ifdef CONFIG_SERIAL_8250_CONSOLE
 383 static int __init omapl138_hawk_console_init(void)
 384 {
 385         if (!machine_is_omapl138_hawkboard())
 386                 return 0;
 387
 388         return add_preferred_console("ttyS", 2, "115200");
 389 }
 390 console_initcall(omapl138_hawk_console_init);
 391 #endif
 392
 393 static void __init omapl138_hawk_map_io(void)
 394 {
 395         da850_init();
 396 }
 397
 398 MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
 399         .atag_offset    = 0x100,
 400         .map_io         = omapl138_hawk_map_io,
 401         .init_irq       = da850_init_irq,
 402         .init_time      = da850_init_time,
 403         .init_machine   = omapl138_hawk_init,
 404         .init_late      = davinci_init_late,
 405         .dma_zone_size  = SZ_128M,
 406         .reserve        = da8xx_rproc_reserve_cma,
 407 MACHINE_END