mmc.h

uboot1.3.0 for s3c2440, 支持nand flash启动

/*
 *  linux/drivers/mmc/mmc_pxa.h
 *
 *  Author: Vladimir Shebordaev, Igor Oblakov
 *  Copyright:  MontaVista Software Inc.
 *
 *  $Id: mmc_pxa.h,v 0.3.1.6 2002/09/25 19:25:48 ted Exp ted $
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 */
#ifndef __MMC_PXA_P_H__
#define __MMC_PXA_P_H__

#include <asm/arch/regs-sdi.h>

#define MMC_DEFAULT_RCA			(1<<16)

#define MMC_BLOCK_SIZE			512
#define MMC_CMD_RESET			0
#define MMC_CMD_SEND_OP_COND		1
#define MMC_CMD_ALL_SEND_CID 		2
#define MMC_CMD_SET_RCA			3
#define MMC_CMD_SELECT_CARD		7
#define MMC_CMD_SEND_CSD 		9
#define MMC_CMD_SEND_CID 		10
#define MMC_CMD_SEND_STATUS		13
#define MMC_CMD_SET_BLOCKLEN		16
#define MMC_CMD_READ_BLOCK		17
#define MMC_CMD_RD_BLK_MULTI		18
#define MMC_CMD_WRITE_BLOCK		24

#define MMC_MAX_BLOCK_SIZE		512

#define MMC_R1_IDLE_STATE		0x01
#define MMC_R1_ERASE_STATE		0x02
#define MMC_R1_ILLEGAL_CMD		0x04
#define MMC_R1_COM_CRC_ERR		0x08
#define MMC_R1_ERASE_SEQ_ERR		0x01
#define MMC_R1_ADDR_ERR			0x02
#define MMC_R1_PARAM_ERR		0x04

#define MMC_R1B_WP_ERASE_SKIP		0x0002
#define MMC_R1B_ERR			0x0004
#define MMC_R1B_CC_ERR			0x0008
#define MMC_R1B_CARD_ECC_ERR		0x0010
#define MMC_R1B_WP_VIOLATION		0x0020
#define MMC_R1B_ERASE_PARAM		0x0040
#define MMC_R1B_OOR			0x0080
#define MMC_R1B_IDLE_STATE		0x0100
#define MMC_R1B_ERASE_RESET		0x0200
#define MMC_R1B_ILLEGAL_CMD		0x0400
#define MMC_R1B_COM_CRC_ERR		0x0800
#define MMC_R1B_ERASE_SEQ_ERR		0x1000
#define MMC_R1B_ADDR_ERR		0x2000
#define MMC_R1B_PARAM_ERR		0x4000

typedef struct mmc_cid
{
	/* FIXME: BYTE_ORDER */
	uchar	year:4,
		month:4;
	uchar	sn[3];
	uchar	fwrev:4,
		hwrev:4;
	uchar	name[6];
	uchar	id[3];
} mmc_cid_t;

typedef struct mmc_csd
{
	uchar	ecc:2,
		file_format:2,
		tmp_write_protect:1,
		perm_write_protect:1,
		copy:1,
		file_format_grp:1;
	uint64_t content_prot_app:1,
		rsvd3:4,
		write_bl_partial:1,
		write_bl_len:4,
		r2w_factor:3,
		default_ecc:2,
		wp_grp_enable:1,
		wp_grp_size:5,
		erase_grp_mult:5,
		erase_grp_size:5,
		c_size_mult1:3,
		vdd_w_curr_max:3,
		vdd_w_curr_min:3,
		vdd_r_curr_max:3,
		vdd_r_curr_min:3,
		c_size:12,
		rsvd2:2,
		dsr_imp:1,
		read_blk_misalign:1,
		write_blk_misalign:1,
		read_bl_partial:1;

	ushort	read_bl_len:4,
		ccc:12;
	uchar	tran_speed;
	uchar	nsac;
	uchar	taac;
	uchar	rsvd1:2,
  		spec_vers:4,
		csd_structure:2;
} mmc_csd_t;


#endif /* __MMC_PXA_P_H__ */