/*
 * Created by Ivan Llopard, Universidad Nacional del Sur, 
 * ivanllopard@gmail.com
 *
 * 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
 */
#ifndef _MMC_NIOS2_H_
#define _MMC_NIOS2_H_

/* First logical block */
#define MMC_ADDR_FIRST_BLOCK		249

#define SPI_RXDATA		readl(CONFIG_SYS_NIOS_SPIBASE)
#define SPI_TXDATA(val)		writel(CONFIG_SYS_NIOS_SPIBASE + 4, (val))
#define SPI_STATUS_RD		readl(CONFIG_SYS_NIOS_SPIBASE + 8)
#define SPI_STATUS_WR(val)	writel(CONFIG_SYS_NIOS_SPIBASE + 8, (val))
#define SPI_CONTROL_WR(val)	writel(CONFIG_SYS_NIOS_SPIBASE + 12, (val))
#define SPI_SLAVE_WR(val)	writel(CONFIG_SYS_NIOS_SPIBASE + 20, (val))
#define SPI_SLAVE_RD		readl(CONFIG_SYS_NIOS_SPIBASE + 20)

#define SPI_RECEIVE(_spi_data) 	while ((SPI_STATUS_RD & NIOS_SPI_TRDY) == 0); \
				SPI_TXDATA(0xff); \
				while ((SPI_STATUS_RD & NIOS_SPI_RRDY) == 0); \
				(_spi_data) = SPI_RXDATA

#endif /* _MMC_NIOS2_H_ */