uboot-vybrid_public/board/davedenx/qong/fpga.c

/*
 * (C) Copyright 2010
 * Stefano Babic, DENX Software Engineering, sbabic@denx.de
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */

#include <common.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/gpio.h>
#include <fpga.h>
#include <lattice.h>
#include "qong_fpga.h"

DECLARE_GLOBAL_DATA_PTR;

#if defined(CONFIG_FPGA)

static void qong_jtag_init(void)
{
	return;
}

static void qong_fpga_jtag_set_tdi(int value)
{
	gpio_set_value(QONG_FPGA_TDI_PIN, value);
}

static void qong_fpga_jtag_set_tms(int value)
{
	gpio_set_value(QONG_FPGA_TMS_PIN, value);
}

static void qong_fpga_jtag_set_tck(int value)
{
	gpio_set_value(QONG_FPGA_TCK_PIN, value);
}

static int qong_fpga_jtag_get_tdo(void)
{
	return gpio_get_value(QONG_FPGA_TDO_PIN);
}

lattice_board_specific_func qong_fpga_fns = {
	qong_jtag_init,
	qong_fpga_jtag_set_tdi,
	qong_fpga_jtag_set_tms,
	qong_fpga_jtag_set_tck,
	qong_fpga_jtag_get_tdo
};

Lattice_desc qong_fpga[CONFIG_FPGA_COUNT] = {
	{
		Lattice_XP2,
		lattice_jtag_mode,
		356519,
		(void *) &qong_fpga_fns,
		NULL,
		0,
		"lfxp2_5e_ftbga256"
	},
};

int qong_fpga_init(void)
{
	int i;

	fpga_init();

	for (i = 0; i < CONFIG_FPGA_COUNT; i++) {
		fpga_add(fpga_lattice, &qong_fpga[i]);
	}
	return 0;
}

#endif