path: root/boards/at91sam9g20-ek/board.h

/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
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//------------------------------------------------------------------------------
/// \dir
/// !Purpose
/// 
/// Definition and functions for using AT91SAM9G20-related features, such
/// has PIO pins, memories, etc.
/// 
/// !Usage
/// -# The code for booting the board is provided by board_cstartup.S and
///    board_lowlevel.c.
/// -# For using board PIOs, board characteristics (clock, etc.) and external
///    components, see board.h.
/// -# For manipulating memories (remapping, SDRAM, etc.), see board_memories.h.
//------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------
/// \unit
/// !Purpose
/// 
/// Definition of AT91SAM9G20-EK characteristics, AT91SAM9G20-dependant PIOs and
/// external components interfacing.
/// 
/// !Usage
/// -# For operating frequency information, see "SAM9G20-EK - Operating frequencies".
/// -# For using portable PIO definitions, see "SAM9G20-EK - PIO definitions".
/// -# Several USB definitions are included here (see "SAM9G20-EK - USB device").
/// -# For external components definitions, see "SAM79260-EK - External components".
/// -# For memory-related definitions, see "SAM79260-EK - Memories".
//------------------------------------------------------------------------------

#ifndef BOARD_H 
#define BOARD_H

//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------

#if defined(at91sam9g20)
    #include "at91sam9g20/chip.h"
    #include "at91sam9g20/AT91SAM9G20.h"
#else
    #error Board does not support the specified chip.
#endif

//------------------------------------------------------------------------------
//         Definitions
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - Board Description"
/// This page lists several definition related to the board description.
///
/// !Definitions
/// - BOARD_NAME

/// Name of the board.
#define BOARD_NAME              "AT91SAM9G20-EK"
/// Board definition.
#define at91sam9g20ek
/// Board Revision definition
#define BOARD_9G20_REVC
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - Operating frequencies"
/// This page lists several definition related to the board operating frequency
/// (when using the initialization done by board_lowlevel.c).
/// 
/// !Definitions
/// - BOARD_MAINOSC
/// - BOARD_MCK

/// Frequency of the board main oscillator.
#define BOARD_MAINOSC           18432000

/// Master clock frequency (when using board_lowlevel.c).
#define BOARD_MCK               ((18432000 * 43) / 6)
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
// ADC
//------------------------------------------------------------------------------
/// ADC clock frequency, at 10-bit resolution (in Hz)
#define ADC_MAX_CK_10BIT         5000000
/// Startup time max, return from Idle mode (in µs)
#define ADC_STARTUP_TIME_MAX       15
/// Track and hold Acquisition Time min (in ns)
#define ADC_TRACK_HOLD_TIME_MIN  1200


//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - USB device"
/// 
/// !Constants
/// - BOARD_USB_BMATTRIBUTES

/// USB attributes configuration descriptor (bus or self powered, remote wakeup)
#define BOARD_USB_BMATTRIBUTES USBConfigurationDescriptor_SELFPOWERED_NORWAKEUP
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - PIO definitions"
/// This pages lists all the pio definitions contained in board.h. The constants
/// are named using the following convention: PIN_* for a constant which defines
/// a single Pin instance (but may include several PIOs sharing the same
/// controller), and PINS_* for a list of Pin instances.
///
/// !DBGU
/// - PINS_DBGU
/// 
/// !LEDs
/// - PIN_LED_0
/// - PIN_LED_1
/// - PINS_LEDS
/// - LED_POWER
/// - LED_DS1
/// 
/// !Push buttons
/// - PIN_PUSHBUTTON_1
/// - PIN_PUSHBUTTON_2
/// - PINS_PUSHBUTTONS
/// - PUSHBUTTON_BP1
/// - PUSHBUTTON_BP2
/// - JOYSTICK_LEFT
/// - JOYSTICK_RIGHT
/// 
/// !USART0
/// - PIN_USART0_RXD
/// - PIN_USART0_TXD
/// - PIN_USART0_SCK
/// 
/// !SPI0
/// - PIN_SPI0_MISO
/// - PIN_SPI0_MOSI
/// - PIN_SPI0_SPCK
/// - PINS_SPI0
/// - PIN_SPI0_NPCS0
/// - PIN_SPI0_NPCS1
/// 
/// !SSC
/// - PINS_SSC_TX
/// 
/// !USB
/// - PIN_USB_VBUS
/// 
/// !MCI
/// - PINS_MCI
///
/// !ADC
/// - PIN_ADC_ADC0
/// - PIN_ADC_ADC1
/// - PIN_ADC_ADC2
/// - PIN_ADC_ADC3
/// - PIN_ADC_ADC4
/// - PIN_ADC_ADC5
/// - PIN_ADC_ADC6
/// - PIN_ADC_ADC7
/// - PINS_ADC
/// 
/// !TWI
/// - PINS_TWI
///


/// List of all DBGU pin definitions.
#define PINS_DBGU  {(1<<14) | (1<<15), AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}

/// LED #0 pin definition.
#if defined(BOARD_9G20_REVC)
#define PIN_LED_0   {1 << 9, AT91C_BASE_PIOB, AT91C_ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
#else
#define PIN_LED_0   {1 << 9, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
#endif
/// LED #1 pin definition.
#if defined(BOARD_9G20_REVC)
#define PIN_LED_1   {1 << 8, AT91C_BASE_PIOB, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
#else
#define PIN_LED_1   {1 << 6, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
#endif
/// List of all LED definitions.
#define PINS_LEDS   PIN_LED_0, PIN_LED_1
/// Power LED index.
#define LED_POWER       0
/// DS1 LED index.
#define LED_DS1         1

/// Push button #1 pin definition.
#define PIN_PUSHBUTTON_1  {1 << 30, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_INPUT, PIO_PULLUP}
/// Pusb button #2 pin definition.
#define PIN_PUSHBUTTON_2  {1 << 31, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_INPUT, PIO_PULLUP}
/// List of all pushbutton pin definitions.
#define PINS_PUSHBUTTONS  PIN_PUSHBUTTON_1, PIN_PUSHBUTTON_2
/// Push button #1 index.
#define PUSHBUTTON_BP1   0
/// Push button #2 index.
#define PUSHBUTTON_BP2   1
/// Simulated joystick LEFT index.
#define JOYSTICK_LEFT    0
/// Simulated joystick RIGHT index.
#define JOYSTICK_RIGHT   1

/// USART0 TXD pin definition.
#define PIN_USART0_TXD  {1 << 4, AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}
/// USART0 RXD pin definition.
#define PIN_USART0_RXD  {1 << 5, AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}
/// USART0 RTS pin definition.
#define PIN_USART0_RTS  {1 << 26, AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}
/// USART0 CTS pin definition.
#define PIN_USART0_CTS  {1 << 27, AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}
/// USART0 SCK pin definition.
#define PIN_USART0_SCK  {1 << 31, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}

/// SPI0 MISO pin definition.
#define PIN_SPI0_MISO  {1 << 0, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_PULLUP}
/// SPI0 MOSI pin definition.
#define PIN_SPI0_MOSI  {1 << 1, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_PULLUP}
/// SPI0 SPCK pin definition.
#define PIN_SPI0_SPCK  {1 << 2, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}
/// List of SPI0 pin definitions (MISO, MOSI & SPCK).
#define PINS_SPI0      PIN_SPI0_MISO, PIN_SPI0_MOSI, PIN_SPI0_SPCK
/// SPI0 chip select 0 pin definition.
#define PIN_SPI0_NPCS0 {1 << 3, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_PULLUP}
/// SPI0 chip select 1 pin definition.
#define PIN_SPI0_NPCS1 {1 << 11, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_PERIPH_B, PIO_PULLUP}

/// SSC transmitter pins definition.
#define PINS_SSC_TX { (1 << 16) | (1 << 17) | (1 << 18), \
                      AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}

/// USB VBus monitoring pin definition.
#define PIN_USB_VBUS    {1 << 5, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_DEFAULT}

/// List of MCI pins definitions.
#define PINS_MCI  \
    {0x0000003B, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_B, PIO_PULLUP}, \
    {1 << 8, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}

/// List of second MCI slot pins definitions.
#define PINS_MCI1  \
    {0xec0, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_PULLUP}, \
    {1 << 8, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}

/// MCI Slot 1 CD pin
//#define PINS_MCI1_CD \
//    {1 << 2, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_PULLUP}

//#define BOARD_SD_MCI1_PIN_CD             PINS_MCI1_CD

/// ADC_AD0 pin definition.
#define PIN_ADC_ADC0 {1 << 0, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_DEFAULT}
/// ADC_AD1 pin definition.
#define PIN_ADC_ADC1 {1 << 1, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_DEFAULT}
/// ADC_AD2 pin definition.
#define PIN_ADC_ADC2 {1 << 2, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_DEFAULT}
/// ADC_AD3 pin definition.
#define PIN_ADC_ADC3 {1 << 3, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_DEFAULT}
/// Pins ADC
#define PINS_ADC PIN_ADC_ADC0, PIN_ADC_ADC1, PIN_ADC_ADC2, PIN_ADC_ADC3

/// TWI pins definition.
#define PINS_TWI  {0x01800000, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - External components"
/// This page lists the definitions related to external on-board components
/// located in the board.h file for the AT91SAM9G20-EK.
/// 
/// !AT45 Dataflash Card (A)
/// - BOARD_AT45_A_SPI_BASE
/// - BOARD_AT45_A_SPI_ID
/// - BOARD_AT45_A_SPI_PINS
/// - BOARD_AT45_A_SPI
/// - BOARD_AT45_A_NPCS
/// - BOARD_AT45_A_NPCS_PIN
/// 
/// !AT45 Dataflash (B)
/// - BOARD_AT45_B_SPI_BASE
/// - BOARD_AT45_B_SPI_ID
/// - BOARD_AT45_B_SPI_PINS
/// - BOARD_AT45_B_SPI
/// - BOARD_AT45_B_NPCS
/// - BOARD_AT45_B_NPCS_PIN
/// 
/// !SD Card
/// - BOARD_SD_MCI_BASE
/// - BOARD_SD_MCI_ID
/// - BOARD_SD_PINS
/// - BOARD_SD_SLOT
/// - BOARD_SD_BOOT_MCISLOT
/// 
/// !SD Card SPI
/// - BOARD_SD_SPI_BASE
/// - BOARD_SD_SPI_ID  
/// - BOARD_SD_SPI_PINS
/// - BOARD_SD_NPCS    
///
/// !ISI
/// - BOARD_ISI_PIO_CNTRL1
/// - BOARD_ISI_PIO_CNTRL2
/// - BOARD_ISI_TWCK
/// - BOARD_ISI_TWD
/// - BOARD_ISI_MCK
/// - BOARD_ISI_VSYNC
/// - BOARD_ISI_HSYNC
/// - BOARD_ISI_PCK
/// - BOARD_ISI_PINS_DATA

/// Base address of SPI peripheral connected to the dataflash.
#define BOARD_AT45_A_SPI_BASE         AT91C_BASE_SPI0
/// Identifier of SPI peripheral connected to the dataflash.
#define BOARD_AT45_A_SPI_ID           AT91C_ID_SPI0
/// Pins of the SPI peripheral connected to the dataflash.
#define BOARD_AT45_A_SPI_PINS         PINS_SPI0
/// Dataflash SPI number.
#define BOARD_AT45_A_SPI              0
/// Chip select connected to the dataflash.
#define BOARD_AT45_A_NPCS             0
/// Chip select pin connected to the dataflash.
#define BOARD_AT45_A_NPCS_PIN         PIN_SPI0_NPCS0

/// Base address of SPI peripheral connected to the dataflash.
#define BOARD_AT45_B_SPI_BASE         AT91C_BASE_SPI0
/// Identifier of SPI peripheral connected to the dataflash.
#define BOARD_AT45_B_SPI_ID           AT91C_ID_SPI0
/// Pins of the SPI peripheral connected to the dataflash.
#define BOARD_AT45_B_SPI_PINS         PINS_SPI0
/// Dataflash SPI number.
#define BOARD_AT45_B_SPI              0
/// Chip select connected to the dataflash.
#define BOARD_AT45_B_NPCS             1
/// Chip select pin connected to the dataflash.
#define BOARD_AT45_B_NPCS_PIN         PIN_SPI0_NPCS1

/// Base address of SPI peripheral connected to the serialflash.
#define BOARD_AT26_A_SPI_BASE         AT91C_BASE_SPI0
/// Identifier of SPI peripheral connected to the dataflash.
#define BOARD_AT26_A_SPI_ID           AT91C_ID_SPI0
/// Pins of the SPI peripheral connected to the dataflash.
#define BOARD_AT26_A_SPI_PINS         PINS_SPI0
/// Dataflahs SPI number.
#define BOARD_AT26_A_SPI              0
/// Chip select connected to the dataflash.
#define BOARD_AT26_A_NPCS             0
/// Chip select pin connected to the dataflash.
#define BOARD_AT26_A_NPCS_PIN         PIN_SPI0_NPCS0

/// Base address of the MCI peripheral connected to the SD card.
#define BOARD_SD_MCI_BASE           AT91C_BASE_MCI
/// Peripheral identifier of the MCI connected to the SD card.
#define BOARD_SD_MCI_ID             AT91C_ID_MCI
/// MCI pins that shall be configured to access the SD card.
#define BOARD_SD_PINS               PINS_MCI
/// Second MCI slot pins
#define BOARD_SD_MCI1_PINS          PINS_MCI1
/// MCI slot to which the SD card is connected to.
#define BOARD_SD_SLOT               MCI_SD_SLOTB
#if defined(ORIGIN_SD_PORT_MCI1)
#undef BOARD_SD_MCI_BASE
#define BOARD_SD_MCI_BASE           AT91C_BASE_MCI
#undef BOARD_SD_MCI_ID
#define BOARD_SD_MCI_ID             AT91C_ID_MCI
#undef BOARD_SD_PINS
#define BOARD_SD_PINS               PINS_MCI1
#undef BOARD_SD_SLOT
#define BOARD_SD_SLOT               MCI_SD_SLOTA
#endif
/// Second MCI slot to which the SD card is connected to.
#define BOARD_SD_MCI1_SLOT          MCI_SD_SLOTA
/// SD boot slot
#define BOARD_SD_BOOT_MCISLOT    1
/// SD card detection pin definition.
//#define BOARD_SD_PIN_CD     {1 << 9, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_PULLUP}

/// Second MCI slot Peripheral identifier
#define BOARD_SD_MCI1_ID            AT91C_ID_MCI
/// Base address of the second MCI peripheral connected to the SD card.
#define BOARD_SD_MCI1_BASE          AT91C_BASE_MCI

/// Base address of the SPI peripheral connected to the SD card.
#define BOARD_SD_SPI_BASE   AT91C_BASE_SPI0
/// Identifier of the SPI peripheral connected to the SD card.
#define BOARD_SD_SPI_ID     AT91C_ID_SPI0
/// List of pins to configure to access the SD card
#define BOARD_SD_SPI_PINS   PINS_SPI0, PIN_SPI0_NPCS0
/// NPCS number
#define BOARD_SD_NPCS               0

/// PHY address
#define BOARD_EMAC_PHY_ADDR         0
/// PHY Component
#define BOARD_EMAC_PHY_COMP_DM9161  1
/// Board EMAC power control - ALWAYS ON
#define BOARD_EMAC_POWER_ALWAYS_ON
/// Board EMAC work mode - RMII/MII ( 1 / 0 )
#define BOARD_EMAC_MODE_RMII        1
/// The PIN list of PIO for EMAC
#define BOARD_EMAC_PINS     {  (1<<19)|(1<<13)|(1<<12)|(1<<16)|(1<<15)|(1<<14)\
                              |(1<<17)|(1<<18)|(1<<20)|(1<<21)|(1<<7),\
                              AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}, \
                            {  (1<<11)|(1<<10)|(1<<26)|(1<<25)|(1<<27)|(1<<22)\
                              |(1<<29)|(1<<28),\
                              AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT}
/// The power up reset latch PIO for PHY
#define BOARD_EMAC_PIN_TEST   {(1<<17), AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
#define BOARD_EMAC_PIN_RMII   {(1<<29), AT91C_BASE_PIOA, AT91C_ID_PIOB, PIO_OUTPUT_1, PIO_DEFAULT}
// We force the address
//(1<<14) PHY address 0, (1<<15) PHY address 1, (1<<25) PHY address 2,
//(1<<26) PHY address 3, (1<<28) PHY address 4
#define BOARD_EMAC_PINS_PHYAD {(1<<14)|(1<<15),\
                               AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}, \
                              {(1<<26)|(1<<25)|(1<<28),\
                               AT91C_BASE_PIOA, AT91C_ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT}
#define BOARD_EMAC_PIN_10BT   {(1<<27), AT91C_BASE_PIOA, AT91C_ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT}
#define BOARD_EMAC_PIN_RPTR   {(1<<18), AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
/// The PIN Configure list for EMAC on power up reset (RMII)
#define BOARD_EMAC_RST_PINS BOARD_EMAC_PINS_PHYAD, \
                            BOARD_EMAC_PIN_TEST, BOARD_EMAC_PIN_RMII, \
                            BOARD_EMAC_PIN_10BT, BOARD_EMAC_PIN_RPTR
/// The runtime pin configure list for EMAC
#define BOARD_EMAC_RUN_PINS BOARD_EMAC_PINS

/// ISI
#define BOARD_CAPTOR_OV9650
#define BOARD_ISI_PIO_CTRL1 {(1<<4),  AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_OUTPUT_0, PIO_DEFAULT}
#define BOARD_ISI_PIO_CTRL2 {(1<<19), AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_OUTPUT_0, PIO_DEFAULT}
#define BOARD_ISI_TWCK      {(1<<24), AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}
#define BOARD_ISI_TWD       {(1<<23), AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}
// PCK1 use instead of ISI_MCK
#define BOARD_ISI_MCK       {(1<<31), AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT}
#define BOARD_ISI_VSYNC     {(1<<29), AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT}
#define BOARD_ISI_HSYNC     {(1<<30), AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT}
#define BOARD_ISI_PCK       {(1<<28), AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT}
#define BOARD_ISI_PINS_DATA {(1<<20)|(1<<21)|(1<<22)|(1<<23)|(1<<24)|(1<<25)|(1<<26)|(1<<27)|\
                             (1<<10)|(1<<11)|(1<<12)|(1<<13),\
                             AT91C_BASE_PIOB, AT91C_ID_PIOB, PIO_PERIPH_B, PIO_DEFAULT}

//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - Memories"
/// This page lists definitions related to external on-board memories.
/// 
/// !SDRAM
/// - BOARD_SDRAM_SIZE
/// - PINS_SDRAM
/// - BOARD_SDRAM_BUSWIDTH
///
/// !Nandflash
/// - PINS_NANDFLASH
/// - BOARD_NF_EBI_COMMAND_ADDR
/// - BOARD_NF_EBI_ADDRESS_ADDR
/// - BOARD_NF_EBI_DATA_ADDR
/// - BOARD_NF_CE_PIN
/// - BOARD_NF_RB_PIN
///
/// !NorFlash
/// - BOARD_NORFLASH_ADDR
/// - BOARD_NORFLASH_DFT_BUS_SIZE

/// Board SDRAM size
#define BOARD_SDRAM_SIZE        (64*1024*1024)  // 64 MB
/// List of all SDRAM pins definitions.
#define PINS_SDRAM              {0xFFFF0000, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_PERIPH_A, PIO_DEFAULT}
/// SDRAM bus width.
#define BOARD_SDRAM_BUSWIDTH    32

/// Nandflash controller peripheral pins definition.
#define PINS_NANDFLASH          BOARD_NF_CE_PIN, BOARD_NF_RB_PIN
/// Nandflash chip enable pin definition.
#define BOARD_NF_CE_PIN         {1 << 14, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_OUTPUT_1, PIO_DEFAULT}
/// Nandflash ready/busy pin definition.
#define BOARD_NF_RB_PIN         {1 << 13, AT91C_BASE_PIOC, AT91C_ID_PIOC, PIO_INPUT, PIO_PULLUP}
/// Address for transferring command bytes to the nandflash.
#define BOARD_NF_COMMAND_ADDR   0x40400000
/// Address for transferring address bytes to the nandflash.
#define BOARD_NF_ADDRESS_ADDR   0x40200000
/// Address for transferring data bytes to the nandflash.
#define BOARD_NF_DATA_ADDR      0x40000000

/// Address for transferring command bytes to the norflash.
#define BOARD_NORFLASH_ADDR     0x10000000
/// Default NOR bus size after power up reset
#define BOARD_NORFLASH_DFT_BUS_SIZE 16
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - External components"
/// This page lists the definitions related to external on-board components
/// located in the board.h file for the SAM9G20-EK.
/// 
/// !ISO7816
/// - PIN_SMARTCARD_CONNECT
/// - PIN_ISO7816_RSTMC
/// - PINS_ISO7816

/// Smartcard detection pin
#define PIN_SMARTCARD_CONNECT   {1 << 5, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_INPUT, PIO_DEFAULT}
/// PIN used for reset the smartcard
#define PIN_ISO7816_RSTMC       {1 << 7, AT91C_BASE_PIOA, AT91C_ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
/// Pins used for connect the smartcard
#define PINS_ISO7816            PIN_USART0_TXD, PIN_USART0_SCK, PIN_ISO7816_RSTMC
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
/// \page "SAM9G20-EK - Individual chip definition"
/// This page lists the definitions related to different chip's definition
/// located in the board.h file for the SAM9G20-EK.

/// Twi eeprom
#define BOARD_ID_TWI_EEPROM         AT91C_ID_TWI
#define BOARD_BASE_TWI_EEPROM       AT91C_BASE_TWI
#define BOARD_PINS_TWI_EEPROM       PINS_TWI

/// USART
#define BOARD_PIN_USART_RXD        PIN_USART0_RXD
#define BOARD_PIN_USART_TXD        PIN_USART0_TXD
#define BOARD_PIN_USART_CTS        PIN_USART0_CTS
#define BOARD_PIN_USART_RTS        PIN_USART0_RTS
#define BOARD_USART_BASE           AT91C_BASE_US0
#define BOARD_ID_USART             AT91C_ID_US0
//------------------------------------------------------------------------------

#endif //#ifndef BOARD_H