release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-at572d940hf_ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-at572d940hf_ek.c
   3  *
   4  * Copyright (C) 2008 Atmel Antonio R. Costa <costa.antonior@gmail.com>
   5  * Copyright (C) 2005 SAN People
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/mm.h>
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ds1305.h>
  29 #include <linux/irq.h>
  30 #include <linux/mtd/physmap.h>
  31
  32 #include <mach/hardware.h>
  33 #include <asm/setup.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/irq.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40
  41 #include <mach/board.h>
  42 #include <mach/gpio.h>
  43 #include <mach/at91sam9_smc.h>
  44
  45 #include "sam9_smc.h"
  46 #include "generic.h"
  47
  48
  49 static void __init eb_map_io(void)
  50 {
  51         /* Initialize processor: 12.500 MHz crystal */
  52         at572d940hf_initialize(12000000);
  53
  54         /* DBGU on ttyS0. (Rx & Tx only) */
  55         at91_register_uart(0, 0, 0);
  56
  57         /* USART0 on ttyS1. (Rx & Tx only) */
  58         at91_register_uart(AT572D940HF_ID_US0, 1, 0);
  59
  60         /* USART1 on ttyS2. (Rx & Tx only) */
  61         at91_register_uart(AT572D940HF_ID_US1, 2, 0);
  62
  63         /* USART2 on ttyS3. (Tx & Rx only */
  64         at91_register_uart(AT572D940HF_ID_US2, 3, 0);
  65
  66         /* set serial console to ttyS0 (ie, DBGU) */
  67         at91_set_serial_console(0);
  68 }
  69
  70 static void __init eb_init_irq(void)
  71 {
  72         at572d940hf_init_interrupts(NULL);
  73 }
  74
  75
  76 /*
  77  * USB Host Port
  78  */
  79 static struct at91_usbh_data __initdata eb_usbh_data = {
  80         .ports          = 2,
  81 };
  82
  83
  84 /*
  85  * USB Device Port
  86  */
  87 static struct at91_udc_data __initdata eb_udc_data = {
  88         .vbus_pin       = 0,            /* no VBUS detection,UDC always on */
  89         .pullup_pin     = 0,            /* pull-up driven by UDC */
  90 };
  91
  92
  93 /*
  94  * MCI (SD/MMC)
  95  */
  96 static struct at91_mmc_data __initdata eb_mmc_data = {
  97         .wire4          = 1,
  98 /*      .det_pin        = ... not connected */
  99 /*      .wp_pin         = ... not connected */
 100 /*      .vcc_pin        = ... not connected */
 101 };
 102
 103
 104 /*
 105  * MACB Ethernet device
 106  */
 107 static struct at91_eth_data __initdata eb_eth_data = {
 108         .phy_irq_pin    = AT91_PIN_PB25,
 109         .is_rmii        = 1,
 110 };
 111
 112 /*
 113  * NOR flash
 114  */
 115
 116 static struct mtd_partition eb_nor_partitions[] = {
 117         {
 118                 .name           = "Raw Environment",
 119                 .offset         = 0,
 120                 .size           = SZ_4M,
 121                 .mask_flags     = 0,
 122         },
 123         {
 124                 .name           = "OS FS",
 125                 .offset         = MTDPART_OFS_APPEND,
 126                 .size           = 3 * SZ_1M,
 127                 .mask_flags     = 0,
 128         },
 129         {
 130                 .name           = "APP FS",
 131                 .offset         = MTDPART_OFS_APPEND,
 132                 .size           = MTDPART_SIZ_FULL,
 133                 .mask_flags     = 0,
 134         },
 135 };
 136
 137 static void nor_flash_set_vpp(struct map_info* mi, int i) {
 138 };
 139
 140 static struct physmap_flash_data nor_flash_data = {
 141         .width          = 4,
 142         .parts          = eb_nor_partitions,
 143         .nr_parts       = ARRAY_SIZE(eb_nor_partitions),
 144         .set_vpp        = nor_flash_set_vpp,
 145 };
 146
 147 static struct resource nor_flash_resources[] = {
 148         {
 149                 .start  = AT91_CHIPSELECT_0,
 150                 .end    = AT91_CHIPSELECT_0 + SZ_16M - 1,
 151                 .flags  = IORESOURCE_MEM,
 152         },
 153 };
 154
 155 static struct platform_device nor_flash = {
 156         .name           = "physmap-flash",
 157         .id             = 0,
 158         .dev            = {
 159                                 .platform_data = &nor_flash_data,
 160                         },
 161         .resource       = nor_flash_resources,
 162         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 163 };
 164
 165 static struct sam9_smc_config __initdata eb_nor_smc_config = {
 166         .ncs_read_setup         = 1,
 167         .nrd_setup              = 1,
 168         .ncs_write_setup        = 1,
 169         .nwe_setup              = 1,
 170
 171         .ncs_read_pulse         = 7,
 172         .nrd_pulse              = 7,
 173         .ncs_write_pulse        = 7,
 174         .nwe_pulse              = 7,
 175
 176         .read_cycle             = 9,
 177         .write_cycle            = 9,
 178
 179         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_32,
 180         .tdf_cycles             = 1,
 181 };
 182
 183 static void __init eb_add_device_nor(void)
 184 {
 185         /* configure chip-select 0 (NOR) */
 186         sam9_smc_configure(0, &eb_nor_smc_config);
 187         platform_device_register(&nor_flash);
 188 }
 189
 190 /*
 191  * NAND flash
 192  */
 193 static struct mtd_partition __initdata eb_nand_partition[] = {
 194         {
 195                 .name   = "Partition 1",
 196                 .offset = 0,
 197                 .size   = SZ_16M,
 198         },
 199         {
 200                 .name   = "Partition 2",
 201                 .offset = MTDPART_OFS_NXTBLK,
 202                 .size   = MTDPART_SIZ_FULL,
 203         }
 204 };
 205
 206 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 207 {
 208         *num_partitions = ARRAY_SIZE(eb_nand_partition);
 209         return eb_nand_partition;
 210 }
 211
 212 static struct atmel_nand_data __initdata eb_nand_data = {
 213         .ale            = 22,
 214         .cle            = 21,
 215 /*      .det_pin        = ... not connected */
 216 /*      .rdy_pin        = AT91_PIN_PC16, */
 217         .enable_pin     = AT91_PIN_PA15,
 218         .partition_info = nand_partitions,
 219 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 220         .bus_width_16   = 1,
 221 #else
 222         .bus_width_16   = 0,
 223 #endif
 224 };
 225
 226 static struct sam9_smc_config __initdata eb_nand_smc_config = {
 227         .ncs_read_setup         = 0,
 228         .nrd_setup              = 0,
 229         .ncs_write_setup        = 1,
 230         .nwe_setup              = 1,
 231
 232         .ncs_read_pulse         = 3,
 233         .nrd_pulse              = 3,
 234         .ncs_write_pulse        = 3,
 235         .nwe_pulse              = 3,
 236
 237         .read_cycle             = 5,
 238         .write_cycle            = 5,
 239
 240         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 241         .tdf_cycles             = 12,
 242 };
 243
 244 static void __init eb_add_device_nand(void)
 245 {
 246         /* setup bus-width (8 or 16) */
 247         if (eb_nand_data.bus_width_16)
 248                 eb_nand_smc_config.mode |= AT91_SMC_DBW_16;
 249         else
 250                 eb_nand_smc_config.mode |= AT91_SMC_DBW_8;
 251
 252         /* configure chip-select 3 (NAND) */
 253         sam9_smc_configure(3, &eb_nand_smc_config);
 254
 255         at91_add_device_nand(&eb_nand_data);
 256 }
 257
 258
 259 /*
 260  * SPI devices
 261  */
 262 static struct resource rtc_resources[] = {
 263         [0] = {
 264                 .start  = AT572D940HF_ID_IRQ1,
 265                 .end    = AT572D940HF_ID_IRQ1,
 266                 .flags  = IORESOURCE_IRQ,
 267         },
 268 };
 269
 270 static struct ds1305_platform_data ds1306_data = {
 271         .is_ds1306      = true,
 272         .en_1hz         = false,
 273 };
 274
 275 static struct spi_board_info eb_spi_devices[] = {
 276         {       /* RTC Dallas DS1306 */
 277                 .modalias       = "rtc-ds1305",
 278                 .chip_select    = 3,
 279                 .mode           = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA,
 280                 .max_speed_hz   = 500000,
 281                 .bus_num        = 0,
 282                 .irq            = AT572D940HF_ID_IRQ1,
 283                 .platform_data  = (void *) &ds1306_data,
 284         },
 285 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 286         {       /* Dataflash card */
 287                 .modalias       = "mtd_dataflash",
 288                 .chip_select    = 0,
 289                 .max_speed_hz   = 15 * 1000 * 1000,
 290                 .bus_num        = 0,
 291         },
 292 #endif
 293 };
 294
 295 static void __init eb_board_init(void)
 296 {
 297         /* Serial */
 298         at91_add_device_serial();
 299         /* USB Host */
 300         at91_add_device_usbh(&eb_usbh_data);
 301         /* USB Device */
 302         at91_add_device_udc(&eb_udc_data);
 303         /* I2C */
 304         at91_add_device_i2c(NULL, 0);
 305         /* NOR */
 306         eb_add_device_nor();
 307         /* NAND */
 308         eb_add_device_nand();
 309         /* SPI */
 310         at91_add_device_spi(eb_spi_devices, ARRAY_SIZE(eb_spi_devices));
 311         /* MMC */
 312         at91_add_device_mmc(0, &eb_mmc_data);
 313         /* Ethernet */
 314         at91_add_device_eth(&eb_eth_data);
 315         /* mAgic */
 316         at91_add_device_mAgic();
 317 }
 318
 319 MACHINE_START(AT572D940HFEB, "Atmel AT91D940HF-EB")
 320         /* Maintainer: Atmel <costa.antonior@gmail.com> */
 321         .phys_io        = AT91_BASE_SYS,
 322         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 323         .boot_params    = AT91_SDRAM_BASE + 0x100,
 324         .timer          = &at91sam926x_timer,
 325         .map_io         = eb_map_io,
 326         .init_irq       = eb_init_irq,
 327         .init_machine   = eb_board_init,
 328 MACHINE_END