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Cliff Cai716ebf42008-11-29 18:22:38 -05001/*
2 * Copyright (C) 2008 Analog Device Inc.
3 *
4 * See file CREDITS for list of people who contributed to this
5 * project.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20 * MA 02111-1307 USA
21 */
22#ifndef __BLACKFIN_SDH_H__
23#define __BLACKFIN_SDH_H__
24
25#define MMC_RSP_PRESENT (1 << 0)
26#define MMC_RSP_136 (1 << 1) /* 136 bit response */
27#define MMC_RSP_CRC (1 << 2) /* expect valid crc */
28#define MMC_RSP_BUSY (1 << 3) /* card may send busy */
29#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
30
31#define MMC_CMD_MASK (3 << 5) /* non-SPI command type */
32#define MMC_CMD_AC (0 << 5)
33#define MMC_CMD_ADTC (1 << 5)
34#define MMC_CMD_BC (2 << 5)
35#define MMC_CMD_BCR (3 << 5)
36
37#define MMC_RSP_SPI_S1 (1 << 7) /* one status byte */
38#define MMC_RSP_SPI_S2 (1 << 8) /* second byte */
39#define MMC_RSP_SPI_B4 (1 << 9) /* four data bytes */
40#define MMC_RSP_SPI_BUSY (1 << 10) /* card may send busy */
41
42/*
43 * These are the native response types, and correspond to valid bit
44 * patterns of the above flags. One additional valid pattern
45 * is all zeros, which means we don't expect a response.
46 */
47#define MMC_RSP_NONE (0)
48#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
49#define MMC_RSP_R1B (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY)
50#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
51#define MMC_RSP_R3 (MMC_RSP_PRESENT)
52#define MMC_RSP_R4 (MMC_RSP_PRESENT)
53#define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
54#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
55#define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
56#define ILLEGAL_COMMAND (1 << 22)
57#define APP_CMD (1 << 5)
58
59#endif