arch/arm/mach-at91/board-sam9261ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9261ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   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/dm9000.h>
  29
  30 #include <asm/hardware.h>
  31 #include <asm/setup.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/irq.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <asm/arch/board.h>
  40 #include <asm/arch/gpio.h>
  41 #include <asm/arch/at91sam926x_mc.h>
  42
  43 #include "generic.h"
  44
  45
  46 /*
  47  * Serial port configuration.
  48  *    0 .. 2 = USART0 .. USART2
  49  *    3      = DBGU
  50  */
  51 static struct at91_uart_config __initdata ek_uart_config = {
  52         .console_tty    = 0,                            /* ttyS0 */
  53         .nr_tty         = 1,
  54         .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
  55 };
  56
  57 static void __init ek_map_io(void)
  58 {
  59         /* Initialize processor: 18.432 MHz crystal */
  60         at91sam9261_initialize(18432000);
  61
  62         /* Setup the serial ports and console */
  63         at91_init_serial(&ek_uart_config);
  64 }
  65
  66 static void __init ek_init_irq(void)
  67 {
  68         at91sam9261_init_interrupts(NULL);
  69 }
  70
  71
  72 /*
  73  * DM9000 ethernet device
  74  */
  75 #if defined(CONFIG_DM9000)
  76 static struct resource at91sam9261_dm9000_resource[] = {
  77         [0] = {
  78                 .start  = AT91_CHIPSELECT_2,
  79                 .end    = AT91_CHIPSELECT_2 + 3,
  80                 .flags  = IORESOURCE_MEM
  81         },
  82         [1] = {
  83                 .start  = AT91_CHIPSELECT_2 + 0x44,
  84                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  85                 .flags  = IORESOURCE_MEM
  86         },
  87         [2] = {
  88                 .start  = AT91_PIN_PC11,
  89                 .end    = AT91_PIN_PC11,
  90                 .flags  = IORESOURCE_IRQ
  91         }
  92 };
  93
  94 static struct dm9000_plat_data dm9000_platdata = {
  95         .flags          = DM9000_PLATF_16BITONLY,
  96 };
  97
  98 static struct platform_device at91sam9261_dm9000_device = {
  99         .name           = "dm9000",
 100         .id             = 0,
 101         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
 102         .resource       = at91sam9261_dm9000_resource,
 103         .dev            = {
 104                 .platform_data  = &dm9000_platdata,
 105         }
 106 };
 107
 108 static void __init ek_add_device_dm9000(void)
 109 {
 110         /*
 111          * Configure Chip-Select 2 on SMC for the DM9000.
 112          * Note: These timings were calculated for MASTER_CLOCK = 100000000
 113          *  according to the DM9000 timings.
 114          */
 115         at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
 116         at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
 117         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 118         at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
 119
 120         /* Configure Reset signal as output */
 121         at91_set_gpio_output(AT91_PIN_PC10, 0);
 122
 123         /* Configure Interrupt pin as input, no pull-up */
 124         at91_set_gpio_input(AT91_PIN_PC11, 0);
 125
 126         platform_device_register(&at91sam9261_dm9000_device);
 127 }
 128 #else
 129 static void __init ek_add_device_dm9000(void) {}
 130 #endif /* CONFIG_DM9000 */
 131
 132
 133 /*
 134  * USB Host Port
 135  */
 136 static struct at91_usbh_data __initdata ek_usbh_data = {
 137         .ports          = 2,
 138 };
 139
 140
 141 /*
 142  * USB Device Port
 143  */
 144 static struct at91_udc_data __initdata ek_udc_data = {
 145         .vbus_pin       = AT91_PIN_PB29,
 146         .pullup_pin     = 0,            /* pull-up driven by UDC */
 147 };
 148
 149
 150 /*
 151  * MCI (SD/MMC)
 152  */
 153 static struct at91_mmc_data __initdata ek_mmc_data = {
 154         .wire4          = 1,
 155 //      .det_pin        = ... not connected
 156 //      .wp_pin         = ... not connected
 157 //      .vcc_pin        = ... not connected
 158 };
 159
 160
 161 /*
 162  * NAND flash
 163  */
 164 static struct mtd_partition __initdata ek_nand_partition[] = {
 165         {
 166                 .name   = "Partition 1",
 167                 .offset = 0,
 168                 .size   = 256 * 1024,
 169         },
 170         {
 171                 .name   = "Partition 2",
 172                 .offset = 256 * 1024 ,
 173                 .size   = MTDPART_SIZ_FULL,
 174         },
 175 };
 176
 177 static struct mtd_partition *nand_partitions(int size, int *num_partitions)
 178 {
 179         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 180         return ek_nand_partition;
 181 }
 182
 183 static struct at91_nand_data __initdata ek_nand_data = {
 184         .ale            = 22,
 185         .cle            = 21,
 186 //      .det_pin        = ... not connected
 187         .rdy_pin        = AT91_PIN_PC15,
 188         .enable_pin     = AT91_PIN_PC14,
 189         .partition_info = nand_partitions,
 190 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 191         .bus_width_16   = 1,
 192 #else
 193         .bus_width_16   = 0,
 194 #endif
 195 };
 196
 197 /*
 198  * SPI devices
 199  */
 200 static struct spi_board_info ek_spi_devices[] = {
 201         {       /* DataFlash chip */
 202                 .modalias       = "mtd_dataflash",
 203                 .chip_select    = 0,
 204                 .max_speed_hz   = 15 * 1000 * 1000,
 205                 .bus_num        = 0,
 206         },
 207 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 208         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 209                 .modalias       = "mtd_dataflash",
 210                 .chip_select    = 3,
 211                 .max_speed_hz   = 15 * 1000 * 1000,
 212                 .bus_num        = 0,
 213         },
 214 #elif defined(CONFIG_SND_AT73C213)
 215         {       /* AT73C213 DAC */
 216                 .modalias       = "snd_at73c213",
 217                 .chip_select    = 3,
 218                 .max_speed_hz   = 10 * 1000 * 1000,
 219                 .bus_num        = 0,
 220         },
 221 #endif
 222 };
 223
 224
 225 static void __init ek_board_init(void)
 226 {
 227         /* Serial */
 228         at91_add_device_serial();
 229         /* USB Host */
 230         at91_add_device_usbh(&ek_usbh_data);
 231         /* USB Device */
 232         at91_add_device_udc(&ek_udc_data);
 233         /* I2C */
 234         at91_add_device_i2c();
 235         /* NAND */
 236         at91_add_device_nand(&ek_nand_data);
 237         /* DM9000 ethernet */
 238         ek_add_device_dm9000();
 239
 240         /* spi0 and mmc/sd share the same PIO pins */
 241 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 242         /* SPI */
 243         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 244 #else
 245         /* MMC */
 246         at91_add_device_mmc(0, &ek_mmc_data);
 247 #endif
 248 }
 249
 250 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 251         /* Maintainer: Atmel */
 252         .phys_io        = AT91_BASE_SYS,
 253         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 254         .boot_params    = AT91_SDRAM_BASE + 0x100,
 255         .timer          = &at91sam926x_timer,
 256         .map_io         = ek_map_io,
 257         .init_irq       = ek_init_irq,
 258         .init_machine   = ek_board_init,
 259 MACHINE_END