arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h

   1 #ifndef BCM63XX_DEV_SPI_H
   2 #define BCM63XX_DEV_SPI_H
   3
   4 #include <linux/types.h>
   5 #include <bcm63xx_io.h>
   6 #include <bcm63xx_regs.h>
   7
   8 int __init bcm63xx_spi_register(void);
   9
  10 struct bcm63xx_spi_pdata {
  11         unsigned int    fifo_size;
  12         unsigned int    msg_type_shift;
  13         unsigned int    msg_ctl_width;
  14         int             bus_num;
  15         int             num_chipselect;
  16         u32             speed_hz;
  17 };
  18
  19 enum bcm63xx_regs_spi {
  20         SPI_CMD,
  21         SPI_INT_STATUS,
  22         SPI_INT_MASK_ST,
  23         SPI_INT_MASK,
  24         SPI_ST,
  25         SPI_CLK_CFG,
  26         SPI_FILL_BYTE,
  27         SPI_MSG_TAIL,
  28         SPI_RX_TAIL,
  29         SPI_MSG_CTL,
  30         SPI_MSG_DATA,
  31         SPI_RX_DATA,
  32 };
  33
  34 #define __GEN_SPI_RSET_BASE(__cpu, __rset)                              \
  35         case SPI_## __rset:                                             \
  36                 return SPI_## __cpu ##_## __rset;
  37
  38 #define __GEN_SPI_RSET(__cpu)                                           \
  39         switch (reg) {                                                  \
  40         __GEN_SPI_RSET_BASE(__cpu, CMD)                                 \
  41         __GEN_SPI_RSET_BASE(__cpu, INT_STATUS)                          \
  42         __GEN_SPI_RSET_BASE(__cpu, INT_MASK_ST)                         \
  43         __GEN_SPI_RSET_BASE(__cpu, INT_MASK)                            \
  44         __GEN_SPI_RSET_BASE(__cpu, ST)                                  \
  45         __GEN_SPI_RSET_BASE(__cpu, CLK_CFG)                             \
  46         __GEN_SPI_RSET_BASE(__cpu, FILL_BYTE)                           \
  47         __GEN_SPI_RSET_BASE(__cpu, MSG_TAIL)                            \
  48         __GEN_SPI_RSET_BASE(__cpu, RX_TAIL)                             \
  49         __GEN_SPI_RSET_BASE(__cpu, MSG_CTL)                             \
  50         __GEN_SPI_RSET_BASE(__cpu, MSG_DATA)                            \
  51         __GEN_SPI_RSET_BASE(__cpu, RX_DATA)                             \
  52         }
  53
  54 #define __GEN_SPI_REGS_TABLE(__cpu)                                     \
  55         [SPI_CMD]               = SPI_## __cpu ##_CMD,                  \
  56         [SPI_INT_STATUS]        = SPI_## __cpu ##_INT_STATUS,           \
  57         [SPI_INT_MASK_ST]       = SPI_## __cpu ##_INT_MASK_ST,          \
  58         [SPI_INT_MASK]          = SPI_## __cpu ##_INT_MASK,             \
  59         [SPI_ST]                = SPI_## __cpu ##_ST,                   \
  60         [SPI_CLK_CFG]           = SPI_## __cpu ##_CLK_CFG,              \
  61         [SPI_FILL_BYTE]         = SPI_## __cpu ##_FILL_BYTE,            \
  62         [SPI_MSG_TAIL]          = SPI_## __cpu ##_MSG_TAIL,             \
  63         [SPI_RX_TAIL]           = SPI_## __cpu ##_RX_TAIL,              \
  64         [SPI_MSG_CTL]           = SPI_## __cpu ##_MSG_CTL,              \
  65         [SPI_MSG_DATA]          = SPI_## __cpu ##_MSG_DATA,             \
  66         [SPI_RX_DATA]           = SPI_## __cpu ##_RX_DATA,
  67
  68 static inline unsigned long bcm63xx_spireg(enum bcm63xx_regs_spi reg)
  69 {
  70 #ifdef BCMCPU_RUNTIME_DETECT
  71         extern const unsigned long *bcm63xx_regs_spi;
  72
  73         return bcm63xx_regs_spi[reg];
  74 #else
  75 #if defined(CONFIG_BCM63XX_CPU_6338) || defined(CONFIG_BCM63XX_CPU_6348)
  76         __GEN_SPI_RSET(6348)
  77 #endif
  78 #if defined(CONFIG_BCM63XX_CPU_6358) || defined(CONFIG_BCM63XX_CPU_6362) || \
  79         defined(CONFIG_BCM63XX_CPU_6368)
  80         __GEN_SPI_RSET(6358)
  81 #endif
  82 #endif
  83         return 0;
  84 }
  85
  86 #endif /* BCM63XX_DEV_SPI_H */