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| Current File : //compat/linux/proc/68247/root/compat/linux/proc/68247/root/sys/arm/at91/board_sam9g20ek.c |
/*-
* Copyright (c) 2009 Greg Ansley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* This board file can be used for both:
* Atmel AT91SAM9260-B Development Card and
* Atmel AT91SAM9G20-EK Rev. B Development Card
*
* Since the AT91SAM9260 and AT91SAM9G20 have identical memory maps and
* pin configurations we can use the same file for both.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/arm/at91/board_sam9g20ek.c 213498 2010-10-06 22:40:27Z cognet $");
#include <sys/param.h>
#include <sys/systm.h>
#include <arm/at91/at91board.h>
#include <arm/at91/at91reg.h>
#include <arm/at91/at91var.h>
#include <arm/at91/at91sam9g20reg.h>
#include <arm/at91/at91_piovar.h>
#include <arm/at91/at91_pio_sam9g20.h>
//#include <arm/at91/at91_led.h>
long
board_init(void)
{
/* PIOB's A periph: Turn USART 0's TX/RX pins */
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB14_DRXD, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB15_DTXD, 1);
/* PIOB's A periph: Turn USART 0's TX/RX pins */
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB4_TXD0, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB5_RXD0, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB22_DSR0, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB23_DCD0, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB24_DTR0, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB25_RI0, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB26_RTS0, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB27_CTS0, 0);
/* PIOB's A periph: Turn USART 1's TX/RX pins */
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB6_TXD1, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB7_RXD1, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB28_RTS1, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB29_CTS1, 0);
/* TWI Two-wire Serial Data */
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA23_TWD, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA24_TWCK, 1);
#if 1
/*
* Turn off Clock to DataFlash, conflicts with MCI clock.
*/
at91_pio_use_gpio(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA2);
at91_pio_gpio_input(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA2);
/* Turn off chip select to DataFlash */
at91_pio_gpio_output(AT91SAM9G20_PIOC_BASE,AT91C_PIO_PC11, 0);
at91_pio_gpio_set(AT91SAM9G20_PIOC_BASE,AT91C_PIO_PC11);
at91_pio_use_gpio(AT91SAM9G20_PIOC_BASE,AT91C_PIO_PC11);
/* Multimedia Card */
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA0_MCDB0, 1);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA1_MCCDB, 1);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA3_MCDB3, 1);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA4_MCDB2, 1);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA5_MCDB1, 1);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA8_MCCK, 1);
at91_pio_use_gpio(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC9);
#else
/* SPI0 to DataFlash */
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA0, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA1, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA2, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC11,0);
at91_pio_gpio_input(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA8);
at91_pio_use_gpio(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA8);
#endif
/* EMAC */
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA12_ETX0 , 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA13_ETX1, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA14_ERX0, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA15_ERX1, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA16_ETXEN, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA17_ERXDV, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA18_ERXER, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA19_ETXCK, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA20_EMDC, 0);
at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA21_EMDIO, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA10_ETX2_0, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA11_ETX3_0, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA22_ETXER, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA25_ERX2, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA26_ERX3, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA27_ERXCK, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA28_ECRS, 0);
at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA29_ECOL, 0);
return (at91_ramsize());
}