drivers/mmc/bfin_sdh.h

   1 /*
   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