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

   1 /*
   2  * linux/arch/arm/mach-at91/board-dk.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *
   6  *  Epson S1D framebuffer glue code is:
   7  *     Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include <linux/types.h>
  25 #include <linux/init.h>
  26 #include <linux/mm.h>
  27 #include <linux/module.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/mtd/physmap.h>
  31
  32 #include <asm/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 <asm/arch/board.h>
  42 #include <asm/arch/gpio.h>
  43 #include <asm/arch/at91rm9200_mc.h>
  44
  45 #include "generic.h"
  46
  47
  48 /*
  49  * Serial port configuration.
  50  *    0 .. 3 = USART0 .. USART3
  51  *    4      = DBGU
  52  */
  53 static struct at91_uart_config __initdata dk_uart_config = {
  54         .console_tty    = 0,                            /* ttyS0 */
  55         .nr_tty         = 2,
  56         .tty_map        = { 4, 1, -1, -1, -1 }          /* ttyS0, ..., ttyS4 */
  57 };
  58
  59 static void __init dk_map_io(void)
  60 {
  61         /* Initialize processor: 18.432 MHz crystal */
  62         at91rm9200_initialize(18432000, AT91RM9200_BGA);
  63
  64         /* Setup the LEDs */
  65         at91_init_leds(AT91_PIN_PB2, AT91_PIN_PB2);
  66
  67         /* Setup the serial ports and console */
  68         at91_init_serial(&dk_uart_config);
  69 }
  70
  71 static void __init dk_init_irq(void)
  72 {
  73         at91rm9200_init_interrupts(NULL);
  74 }
  75
  76 static struct at91_eth_data __initdata dk_eth_data = {
  77         .phy_irq_pin    = AT91_PIN_PC4,
  78         .is_rmii        = 1,
  79 };
  80
  81 static struct at91_usbh_data __initdata dk_usbh_data = {
  82         .ports          = 2,
  83 };
  84
  85 static struct at91_udc_data __initdata dk_udc_data = {
  86         .vbus_pin       = AT91_PIN_PD4,
  87         .pullup_pin     = AT91_PIN_PD5,
  88 };
  89
  90 static struct at91_cf_data __initdata dk_cf_data = {
  91         .det_pin        = AT91_PIN_PB0,
  92         .rst_pin        = AT91_PIN_PC5,
  93         // .irq_pin     = ... not connected
  94         // .vcc_pin     = ... always powered
  95 };
  96
  97 static struct at91_mmc_data __initdata dk_mmc_data = {
  98         .slot_b         = 0,
  99         .wire4          = 1,
 100 };
 101
 102 static struct spi_board_info dk_spi_devices[] = {
 103         {       /* DataFlash chip */
 104                 .modalias       = "mtd_dataflash",
 105                 .chip_select    = 0,
 106                 .max_speed_hz   = 15 * 1000 * 1000,
 107         },
 108         {       /* UR6HCPS2-SP40 PS2-to-SPI adapter */
 109                 .modalias       = "ur6hcps2",
 110                 .chip_select    = 1,
 111                 .max_speed_hz   = 250 *  1000,
 112         },
 113         {       /* TLV1504 ADC, 4 channels, 10 bits; one is a temp sensor */
 114                 .modalias       = "tlv1504",
 115                 .chip_select    = 2,
 116                 .max_speed_hz   = 20 * 1000 * 1000,
 117         },
 118 #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
 119         {       /* DataFlash card */
 120                 .modalias       = "mtd_dataflash",
 121                 .chip_select    = 3,
 122                 .max_speed_hz   = 15 * 1000 * 1000,
 123         }
 124 #endif
 125 };
 126
 127 static struct mtd_partition __initdata dk_nand_partition[] = {
 128         {
 129                 .name   = "NAND Partition 1",
 130                 .offset = 0,
 131                 .size   = MTDPART_SIZ_FULL,
 132         },
 133 };
 134
 135 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 136 {
 137         *num_partitions = ARRAY_SIZE(dk_nand_partition);
 138         return dk_nand_partition;
 139 }
 140
 141 static struct at91_nand_data __initdata dk_nand_data = {
 142         .ale            = 22,
 143         .cle            = 21,
 144         .det_pin        = AT91_PIN_PB1,
 145         .rdy_pin        = AT91_PIN_PC2,
 146         // .enable_pin  = ... not there
 147         .partition_info = nand_partitions,
 148 };
 149
 150 #define DK_FLASH_BASE   AT91_CHIPSELECT_0
 151 #define DK_FLASH_SIZE   0x200000
 152
 153 static struct physmap_flash_data dk_flash_data = {
 154         .width  = 2,
 155 };
 156
 157 static struct resource dk_flash_resource = {
 158         .start          = DK_FLASH_BASE,
 159         .end            = DK_FLASH_BASE + DK_FLASH_SIZE - 1,
 160         .flags          = IORESOURCE_MEM,
 161 };
 162
 163 static struct platform_device dk_flash = {
 164         .name           = "physmap-flash",
 165         .id             = 0,
 166         .dev            = {
 167                                 .platform_data  = &dk_flash_data,
 168                         },
 169         .resource       = &dk_flash_resource,
 170         .num_resources  = 1,
 171 };
 172
 173
 174 static void __init dk_board_init(void)
 175 {
 176         /* Serial */
 177         at91_add_device_serial();
 178         /* Ethernet */
 179         at91_add_device_eth(&dk_eth_data);
 180         /* USB Host */
 181         at91_add_device_usbh(&dk_usbh_data);
 182         /* USB Device */
 183         at91_add_device_udc(&dk_udc_data);
 184         at91_set_multi_drive(dk_udc_data.pullup_pin, 1);        /* pullup_pin is connected to reset */
 185         /* Compact Flash */
 186         at91_add_device_cf(&dk_cf_data);
 187         /* I2C */
 188         at91_add_device_i2c();
 189         /* SPI */
 190         at91_add_device_spi(dk_spi_devices, ARRAY_SIZE(dk_spi_devices));
 191 #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
 192         /* DataFlash card */
 193         at91_set_gpio_output(AT91_PIN_PB7, 0);
 194 #else
 195         /* MMC */
 196         at91_set_gpio_output(AT91_PIN_PB7, 1);  /* this MMC card slot can optionally use SPI signaling (CS3). */
 197         at91_add_device_mmc(0, &dk_mmc_data);
 198 #endif
 199         /* NAND */
 200         at91_add_device_nand(&dk_nand_data);
 201         /* NOR Flash */
 202         platform_device_register(&dk_flash);
 203         /* VGA */
 204 //      dk_add_device_video();
 205 }
 206
 207 MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK")
 208         /* Maintainer: SAN People/Atmel */
 209         .phys_io        = AT91_BASE_SYS,
 210         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 211         .boot_params    = AT91_SDRAM_BASE + 0x100,
 212         .timer          = &at91rm9200_timer,
 213         .map_io         = dk_map_io,
 214         .init_irq       = dk_init_irq,
 215         .init_machine   = dk_board_init,
 216 MACHINE_END