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122 lines
4.6 KiB
C
122 lines
4.6 KiB
C
/*-
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* Copyright (c) 2005-2008 Olivier Houchard. All rights reserved.
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* Copyright (c) 2005-2008 Warner Losh. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <machine/board.h>
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#include <arm/at91/at91board.h>
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#include <arm/at91/at91sam9g20reg.h>
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#include <arm/at91/at91_piovar.h>
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#include <arm/at91/at91_pio_sam9g20.h>
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#include <arm/at91/at91_smc.h>
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#include <arm/at91/at91_gpio.h>
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#include <dev/nand/nfc_at91.h>
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static struct at91_smc_init nand_smc = {
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.ncs_rd_setup = 0,
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.nrd_setup = 2,
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.ncs_wr_setup = 0,
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.nwe_setup = 2,
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.ncs_rd_pulse = 4,
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.nrd_pulse = 4,
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.ncs_wr_pulse = 4,
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.nwe_pulse = 4,
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.nrd_cycle = 7,
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.nwe_cycle = 7,
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.mode = SMC_MODE_READ | SMC_MODE_WRITE | SMC_MODE_EXNW_DISABLED,
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.tdf_cycles = 3,
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};
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static struct at91_nand_params nand_param = {
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.ale = 1u << 21,
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.cle = 1u << 22,
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.width = 8,
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.rnb_pin = AT91_PIN_PC13, /* Note: These pins not confirmed */
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.nce_pin = AT91_PIN_PC14,
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.cs = 3,
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};
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BOARD_INIT long
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board_init(void)
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{
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/* Setup Ethernet Pins */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, 1<<7, 0);
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at91_pio_gpio_input(AT91SAM9G20_PIOA_BASE, 1<<7);
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at91_pio_gpio_set_deglitch(AT91SAM9G20_PIOA_BASE, 1<<7, 1);
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA19, 0); /* ETXCK_EREFCK */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA17, 0); /* ERXDV */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA14, 0); /* ERX0 */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA15, 0); /* ERX1 */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA18, 0); /* ERXER */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA16, 0); /* ETXEN */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA12, 0); /* ETX0 */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA13, 0); /* ETX1 */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA21, 0); /* EMDIO */
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at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA20, 0); /* EMDC */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA28, 0); /* ECRS */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA29, 0); /* ECOL */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA25, 0); /* ERX2 */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA26, 0); /* ERX3 */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA27, 0); /* ERXCK */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA23, 0); /* ETX2 */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA24, 0); /* ETX3 */
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at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA22, 0); /* ETXER */
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/* Setup Static Memory Controller */
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at91_smc_setup(0, 3, &nand_smc);
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at91_enable_nand(&nand_param);
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/*
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* This assumes
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* - RNB is on pin PC13
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* - CE is on pin PC14
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*
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* Nothing actually uses RNB right now.
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*
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* For CE, this currently asserts it during board setup and leaves it
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* that way forever.
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*
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* All this can go away when the gpio pin-renumbering happens...
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*/
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at91_pio_use_gpio(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC13 | AT91C_PIO_PC14);
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at91_pio_gpio_input(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC13); /* RNB */
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at91_pio_gpio_output(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC14, 0); /* nCS */
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at91_pio_gpio_clear(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC14); /* Assert nCS */
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return (at91_ramsize());
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}
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ARM_BOARD(NONE, "HOTe 201");
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