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freebsd-skq/sys/arm/at91/board_sam9260ek.c
Pedro F. Giffuni af3dc4a7ca sys/arm: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:04:10 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2012 Marius Strobl <marius@FreeBSD.org>
* 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 THE 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 THE 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.
*/
/*
* Ethernut 5 board support
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <machine/board.h>
#include <arm/at91/at91_pioreg.h>
#include <arm/at91/at91_piovar.h>
#include <arm/at91/at91board.h>
#include <arm/at91/at91sam9260reg.h>
#include <arm/at91/at91_smc.h>
#include <arm/at91/at91_gpio.h>
#include <dev/nand/nfc_at91.h>
static struct at91_smc_init nand_smc = {
.ncs_rd_setup = 0,
.nrd_setup = 1,
.ncs_wr_setup = 0,
.nwe_setup = 1,
.ncs_rd_pulse = 3,
.nrd_pulse = 3,
.ncs_wr_pulse = 3,
.nwe_pulse = 3,
.nrd_cycle = 5,
.nwe_cycle = 5,
.mode = SMC_MODE_READ | SMC_MODE_WRITE | SMC_MODE_EXNW_DISABLED,
.tdf_cycles = 2,
};
static struct at91_nand_params nand_param = {
.ale = 1u << 21,
.cle = 1u << 22,
.width = 8,
.rnb_pin = AT91_PIN_PC13,
.nce_pin = AT91_PIN_PC14,
.cs = 3,
};
static void
bi_dbgu(void)
{
/*
* DBGU
*/
/* DRXD */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB14, 0);
/* DTXD */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB15, 1);
}
static void
bi_emac(void)
{
/*
* EMAC
*/
/* ETX0 */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA12, 0);
/* ETX1 */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA13, 0);
/* ERX0 */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA14, 0);
/* ERX1 */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA15, 0);
/* ETXEN */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA16, 0);
/* ERXDV */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA17, 0);
/* ERXER */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA18, 0);
/* ETXCK */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA19, 0);
/* EMDC */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA20, 0);
/* EMDIO */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA21, 0);
/* Not RMII */
/* ETX2 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA10, 0);
/* ETX3 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA11, 0);
/* ETXER */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA22, 0);
/* ERX2 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA25, 0);
/* ERX3 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA26, 0);
/* ERXCK */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA27, 0);
/* ECRS */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA28, 0);
/* ECOL */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA29, 0);
}
static void
bi_mmc(void)
{
/*
* MMC, wired to socket B.
*/
/* MCDB0 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA0, 1);
/* MCCDB */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA1, 1);
/* MCDB3 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA3, 1);
/* MCDB2 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA4, 1);
/* MCDB1 */
at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA5, 1);
/* MCCK */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA8, 1);
/*
* SPI0 and MMC are wired together, since we don't support sharing
* don't support the dataflash. But if you did, you'd have to
* use CS0 and CS1.
*/
}
static void
bi_iic(void)
{
/*
* TWI. Only one child on the iic bus, which we take care of
* via hints.
*/
/* TWD */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA23, 1);
/* TWCK */
at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA24, 1);
}
static void
bi_usart0(void)
{
/*
* USART0
*/
/* TXD0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB4, 1);
/* RXD0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB5, 0);
/* DSR0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB22, 0);
/* DCD0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB23, 0);
/* DTR0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB24, 1);
/* RI0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB25, 0);
/* RTS0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB26, 1);
/* CTS0 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB27, 0);
}
static void
bi_usart1(void)
{
/*
* USART1
*/
/* RTS1 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB28, 1);
/* CTS1 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB29, 0);
/* TXD1 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB6, 1);
/* RXD1 */
at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB7, 0);
}
static void
bi_nand(void)
{
/* Samsung 256MB SLC Flash */
/* Setup Static Memory Controller */
at91_smc_setup(0, 3, &nand_smc);
at91_enable_nand(&nand_param);
/*
* This assumes
* - RNB is on pin PC13
* - CE is on pin PC14
*
* Nothing actually uses RNB right now.
*
* For CE, this currently asserts it during board setup and leaves it
* that way forever.
*
* All this can go away when the gpio pin-renumbering happens...
*/
at91_pio_use_gpio(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC13 | AT91C_PIO_PC14);
at91_pio_gpio_input(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC13); /* RNB */
at91_pio_gpio_output(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC14, 0); /* nCS */
at91_pio_gpio_clear(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC14); /* Assert nCS */
}
BOARD_INIT long
board_init(void)
{
bi_dbgu();
bi_emac();
bi_mmc();
/*
* SPI1 is wired to a audio CODEC that we don't support, so
* give it a pass.
*/
bi_iic();
bi_usart0();
bi_usart1();
/* USART2 - USART5 aren't wired up, except via PIO pins, ignore them. */
bi_nand();
return (at91_ramsize());
}
ARM_BOARD(AT91SAM9260EK, "Atmel SMA9260-EK")
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