drivers/mmc/host/au1xmmc.h

   1 #ifndef _AU1XMMC_H_
   2 #define _AU1XMMC_H_
   3
   4 /* Hardware definitions */
   5
   6 #define AU1XMMC_DESCRIPTOR_COUNT 1
   7 #define AU1XMMC_DESCRIPTOR_SIZE  2048
   8
   9 #define AU1XMMC_OCR ( MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30  | \
  10                       MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33  | \
  11                       MMC_VDD_33_34 | MMC_VDD_34_35 | MMC_VDD_35_36)
  12
  13 /* Easy access macros */
  14
  15 #define HOST_STATUS(h)  ((h)->iobase + SD_STATUS)
  16 #define HOST_CONFIG(h)  ((h)->iobase + SD_CONFIG)
  17 #define HOST_ENABLE(h)  ((h)->iobase + SD_ENABLE)
  18 #define HOST_TXPORT(h)  ((h)->iobase + SD_TXPORT)
  19 #define HOST_RXPORT(h)  ((h)->iobase + SD_RXPORT)
  20 #define HOST_CMDARG(h)  ((h)->iobase + SD_CMDARG)
  21 #define HOST_BLKSIZE(h) ((h)->iobase + SD_BLKSIZE)
  22 #define HOST_CMD(h)     ((h)->iobase + SD_CMD)
  23 #define HOST_CONFIG2(h) ((h)->iobase + SD_CONFIG2)
  24 #define HOST_TIMEOUT(h) ((h)->iobase + SD_TIMEOUT)
  25 #define HOST_DEBUG(h)   ((h)->iobase + SD_DEBUG)
  26
  27 #define DMA_CHANNEL(h) \
  28         ( ((h)->flags & HOST_F_XMIT) ? (h)->tx_chan : (h)->rx_chan)
  29
  30 /* This gives us a hard value for the stop command that we can write directly
  31  * to the command register
  32  */
  33
  34 #define STOP_CMD (SD_CMD_RT_1B|SD_CMD_CT_7|(0xC << SD_CMD_CI_SHIFT)|SD_CMD_GO)
  35
  36 /* This is the set of interrupts that we configure by default */
  37
  38 #if 0
  39 #define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | SD_CONFIG_DD | \
  40                 SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
  41 #endif
  42
  43 #define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | \
  44                 SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
  45 /* The poll event (looking for insert/remove events runs twice a second */
  46 #define AU1XMMC_DETECT_TIMEOUT (HZ/2)
  47
  48 struct au1xmmc_host {
  49   struct mmc_host *mmc;
  50   struct mmc_request *mrq;
  51
  52   u32 id;
  53
  54   u32 flags;
  55   u32 iobase;
  56   u32 clock;
  57   u32 bus_width;
  58   u32 power_mode;
  59
  60   int status;
  61
  62    struct {
  63            int len;
  64            int dir;
  65   } dma;
  66
  67    struct {
  68            int index;
  69            int offset;
  70            int len;
  71   } pio;
  72
  73   u32 tx_chan;
  74   u32 rx_chan;
  75
  76   struct timer_list timer;
  77   struct tasklet_struct finish_task;
  78   struct tasklet_struct data_task;
  79
  80   spinlock_t lock;
  81 };
  82
  83 /* Status flags used by the host structure */
  84
  85 #define HOST_F_XMIT   0x0001
  86 #define HOST_F_RECV   0x0002
  87 #define HOST_F_DMA    0x0010
  88 #define HOST_F_ACTIVE 0x0100
  89 #define HOST_F_STOP   0x1000
  90
  91 #define HOST_S_IDLE   0x0001
  92 #define HOST_S_CMD    0x0002
  93 #define HOST_S_DATA   0x0003
  94 #define HOST_S_STOP   0x0004
  95
  96 #endif