arch/arm/mach-at91/board-sam9-l9260.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9-l9260.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   6  *  Copyright (C) 2007 Olimex Ltd
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/gpio.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
  31 #include <mach/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 <mach/at91sam9_smc.h>
  41
  42 #include "at91_aic.h"
  43 #include "board.h"
  44 #include "sam9_smc.h"
  45 #include "generic.h"
  46
  47
  48 static void __init ek_init_early(void)
  49 {
  50         /* Initialize processor: 18.432 MHz crystal */
  51         at91_initialize(18432000);
  52 }
  53
  54 /*
  55  * USB Host port
  56  */
  57 static struct at91_usbh_data __initdata ek_usbh_data = {
  58         .ports          = 2,
  59         .vbus_pin       = {-EINVAL, -EINVAL},
  60         .overcurrent_pin= {-EINVAL, -EINVAL},
  61 };
  62
  63 /*
  64  * USB Device port
  65  */
  66 static struct at91_udc_data __initdata ek_udc_data = {
  67         .vbus_pin       = AT91_PIN_PC5,
  68         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  69 };
  70
  71
  72 /*
  73  * SPI devices.
  74  */
  75 static struct spi_board_info ek_spi_devices[] = {
  76 #if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
  77         {       /* DataFlash chip */
  78                 .modalias       = "mtd_dataflash",
  79                 .chip_select    = 1,
  80                 .max_speed_hz   = 15 * 1000 * 1000,
  81                 .bus_num        = 0,
  82         },
  83 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
  84         {       /* DataFlash card */
  85                 .modalias       = "mtd_dataflash",
  86                 .chip_select    = 0,
  87                 .max_speed_hz   = 15 * 1000 * 1000,
  88                 .bus_num        = 0,
  89         },
  90 #endif
  91 #endif
  92 };
  93
  94
  95 /*
  96  * MACB Ethernet device
  97  */
  98 static struct macb_platform_data __initdata ek_macb_data = {
  99         .phy_irq_pin    = AT91_PIN_PA7,
 100         .is_rmii        = 0,
 101 };
 102
 103
 104 /*
 105  * NAND flash
 106  */
 107 static struct mtd_partition __initdata ek_nand_partition[] = {
 108         {
 109                 .name   = "Bootloader Area",
 110                 .offset = 0,
 111                 .size   = 10 * SZ_1M,
 112         },
 113         {
 114                 .name   = "User Area",
 115                 .offset = MTDPART_OFS_NXTBLK,
 116                 .size   = MTDPART_SIZ_FULL,
 117         },
 118 };
 119
 120 static struct atmel_nand_data __initdata ek_nand_data = {
 121         .ale            = 21,
 122         .cle            = 22,
 123         .det_pin        = -EINVAL,
 124         .rdy_pin        = AT91_PIN_PC13,
 125         .enable_pin     = AT91_PIN_PC14,
 126         .ecc_mode       = NAND_ECC_SOFT,
 127         .parts          = ek_nand_partition,
 128         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 129 };
 130
 131 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 132         .ncs_read_setup         = 0,
 133         .nrd_setup              = 1,
 134         .ncs_write_setup        = 0,
 135         .nwe_setup              = 1,
 136
 137         .ncs_read_pulse         = 3,
 138         .nrd_pulse              = 3,
 139         .ncs_write_pulse        = 3,
 140         .nwe_pulse              = 3,
 141
 142         .read_cycle             = 5,
 143         .write_cycle            = 5,
 144
 145         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 146         .tdf_cycles             = 2,
 147 };
 148
 149 static void __init ek_add_device_nand(void)
 150 {
 151         /* configure chip-select 3 (NAND) */
 152         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 153
 154         at91_add_device_nand(&ek_nand_data);
 155 }
 156
 157
 158 /*
 159  * MCI (SD/MMC)
 160  */
 161 static struct mci_platform_data __initdata ek_mci0_data = {
 162         .slot[1] = {
 163                 .bus_width      = 4,
 164                 .detect_pin     = AT91_PIN_PC8,
 165                 .wp_pin         = AT91_PIN_PC4,
 166         },
 167 };
 168
 169 /*
 170  * LEDs
 171  */
 172 static struct gpio_led ek_leds[] = {
 173         {       /* D1 */
 174                 .name                   = "led1",
 175                 .gpio                   = AT91_PIN_PA9,
 176                 .active_low             = 1,
 177                 .default_trigger        = "heartbeat",
 178         },
 179         {       /* D2 */
 180                 .name                   = "led2",
 181                 .gpio                   = AT91_PIN_PA6,
 182                 .active_low             = 1,
 183                 .default_trigger        = "timer",
 184         }
 185 };
 186
 187 static void __init ek_board_init(void)
 188 {
 189         /* Serial */
 190         /* DBGU on ttyS0. (Rx & Tx only) */
 191         at91_register_uart(0, 0, 0);
 192
 193         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 194         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
 195                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 196                            | ATMEL_UART_RI);
 197
 198         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
 199         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 200         at91_add_device_serial();
 201         /* USB Host */
 202         at91_add_device_usbh(&ek_usbh_data);
 203         /* USB Device */
 204         at91_add_device_udc(&ek_udc_data);
 205         /* SPI */
 206         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 207         /* NAND */
 208         ek_add_device_nand();
 209         /* Ethernet */
 210         at91_add_device_eth(&ek_macb_data);
 211         /* MMC */
 212         at91_add_device_mci(0, &ek_mci0_data);
 213         /* I2C */
 214         at91_add_device_i2c(NULL, 0);
 215         /* LEDs */
 216         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 217 }
 218
 219 MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260")
 220         /* Maintainer: Olimex */
 221         .init_time      = at91sam926x_pit_init,
 222         .map_io         = at91_map_io,
 223         .handle_irq     = at91_aic_handle_irq,
 224         .init_early     = ek_init_early,
 225         .init_irq       = at91_init_irq_default,
 226         .init_machine   = ek_board_init,
 227 MACHINE_END