arch/arm/mach-at91/board-sam9260ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9260ek.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/spi/at73c213.h>
  29 #include <linux/clk.h>
  30
  31 #include <asm/hardware.h>
  32 #include <asm/setup.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/irq.h>
  35
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/irq.h>
  39
  40 #include <asm/arch/board.h>
  41 #include <asm/arch/gpio.h>
  42
  43 #include "generic.h"
  44
  45
  46 static void __init ek_map_io(void)
  47 {
  48         /* Initialize processor: 18.432 MHz crystal */
  49         at91sam9260_initialize(18432000);
  50
  51         /* DGBU on ttyS0. (Rx & Tx only) */
  52         at91_register_uart(0, 0, 0);
  53
  54         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  55         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  56                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
  57                            | ATMEL_UART_RI);
  58
  59         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  60         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  61
  62         /* set serial console to ttyS0 (ie, DBGU) */
  63         at91_set_serial_console(0);
  64 }
  65
  66 static void __init ek_init_irq(void)
  67 {
  68         at91sam9260_init_interrupts(NULL);
  69 }
  70
  71
  72 /*
  73  * USB Host port
  74  */
  75 static struct at91_usbh_data __initdata ek_usbh_data = {
  76         .ports          = 2,
  77 };
  78
  79 /*
  80  * USB Device port
  81  */
  82 static struct at91_udc_data __initdata ek_udc_data = {
  83         .vbus_pin       = AT91_PIN_PC5,
  84         .pullup_pin     = 0,            /* pull-up driven by UDC */
  85 };
  86
  87
  88 /*
  89  * Audio
  90  */
  91 static struct at73c213_board_info at73c213_data = {
  92         .ssc_id         = 0,
  93         .shortname      = "AT91SAM9260-EK external DAC",
  94 };
  95
  96 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
  97 static void __init at73c213_set_clk(struct at73c213_board_info *info)
  98 {
  99         struct clk *pck0;
 100         struct clk *plla;
 101
 102         pck0 = clk_get(NULL, "pck0");
 103         plla = clk_get(NULL, "plla");
 104
 105         /* AT73C213 MCK Clock */
 106         at91_set_B_periph(AT91_PIN_PC1, 0);     /* PCK0 */
 107
 108         clk_set_parent(pck0, plla);
 109         clk_put(plla);
 110
 111         info->dac_clk = pck0;
 112 }
 113 #else
 114 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 115 #endif
 116
 117 /*
 118  * SPI devices.
 119  */
 120 static struct spi_board_info ek_spi_devices[] = {
 121 #if !defined(CONFIG_MMC_AT91)
 122         {       /* DataFlash chip */
 123                 .modalias       = "mtd_dataflash",
 124                 .chip_select    = 1,
 125                 .max_speed_hz   = 15 * 1000 * 1000,
 126                 .bus_num        = 0,
 127         },
 128 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 129         {       /* DataFlash card */
 130                 .modalias       = "mtd_dataflash",
 131                 .chip_select    = 0,
 132                 .max_speed_hz   = 15 * 1000 * 1000,
 133                 .bus_num        = 0,
 134         },
 135 #endif
 136 #endif
 137 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 138         {       /* AT73C213 DAC */
 139                 .modalias       = "at73c213",
 140                 .chip_select    = 0,
 141                 .max_speed_hz   = 10 * 1000 * 1000,
 142                 .bus_num        = 1,
 143                 .mode           = SPI_MODE_1,
 144                 .platform_data  = &at73c213_data,
 145         },
 146 #endif
 147 };
 148
 149
 150 /*
 151  * MACB Ethernet device
 152  */
 153 static struct at91_eth_data __initdata ek_macb_data = {
 154         .phy_irq_pin    = AT91_PIN_PA7,
 155         .is_rmii        = 1,
 156 };
 157
 158
 159 /*
 160  * NAND flash
 161  */
 162 static struct mtd_partition __initdata ek_nand_partition[] = {
 163         {
 164                 .name   = "Partition 1",
 165                 .offset = 0,
 166                 .size   = 256 * 1024,
 167         },
 168         {
 169                 .name   = "Partition 2",
 170                 .offset = 256 * 1024,
 171                 .size   = MTDPART_SIZ_FULL,
 172         },
 173 };
 174
 175 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 176 {
 177         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 178         return ek_nand_partition;
 179 }
 180
 181 static struct at91_nand_data __initdata ek_nand_data = {
 182         .ale            = 21,
 183         .cle            = 22,
 184 //      .det_pin        = ... not connected
 185         .rdy_pin        = AT91_PIN_PC13,
 186         .enable_pin     = AT91_PIN_PC14,
 187         .partition_info = nand_partitions,
 188 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 189         .bus_width_16   = 1,
 190 #else
 191         .bus_width_16   = 0,
 192 #endif
 193 };
 194
 195
 196 /*
 197  * MCI (SD/MMC)
 198  */
 199 static struct at91_mmc_data __initdata ek_mmc_data = {
 200         .slot_b         = 1,
 201         .wire4          = 1,
 202 //      .det_pin        = ... not connected
 203 //      .wp_pin         = ... not connected
 204 //      .vcc_pin        = ... not connected
 205 };
 206
 207
 208 /*
 209  * LEDs
 210  */
 211 static struct gpio_led ek_leds[] = {
 212         {       /* "bottom" led, green, userled1 to be defined */
 213                 .name                   = "ds5",
 214                 .gpio                   = AT91_PIN_PA6,
 215                 .active_low             = 1,
 216                 .default_trigger        = "none",
 217         },
 218         {       /* "power" led, yellow */
 219                 .name                   = "ds1",
 220                 .gpio                   = AT91_PIN_PA9,
 221                 .default_trigger        = "heartbeat",
 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         /* SPI */
 234         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 235         /* NAND */
 236         at91_add_device_nand(&ek_nand_data);
 237         /* Ethernet */
 238         at91_add_device_eth(&ek_macb_data);
 239         /* MMC */
 240         at91_add_device_mmc(0, &ek_mmc_data);
 241         /* I2C */
 242         at91_add_device_i2c(NULL, 0);
 243         /* SSC (to AT73C213) */
 244         at73c213_set_clk(&at73c213_data);
 245         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
 246         /* LEDs */
 247         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 248 }
 249
 250 MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-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