arch/arm/mach-pxa/include/mach/regs-ssp.h

   1 #ifndef __ASM_ARCH_REGS_SSP_H
   2 #define __ASM_ARCH_REGS_SSP_H
   3
   4 /*
   5  * SSP Serial Port Registers
   6  * PXA250, PXA255, PXA26x and PXA27x SSP controllers are all slightly different.
   7  * PXA255, PXA26x and PXA27x have extra ports, registers and bits.
   8  */
   9
  10 #define SSCR0           (0x00)  /* SSP Control Register 0 */
  11 #define SSCR1           (0x04)  /* SSP Control Register 1 */
  12 #define SSSR            (0x08)  /* SSP Status Register */
  13 #define SSITR           (0x0C)  /* SSP Interrupt Test Register */
  14 #define SSDR            (0x10)  /* SSP Data Write/Data Read Register */
  15
  16 #define SSTO            (0x28)  /* SSP Time Out Register */
  17 #define SSPSP           (0x2C)  /* SSP Programmable Serial Protocol */
  18 #define SSTSA           (0x30)  /* SSP Tx Timeslot Active */
  19 #define SSRSA           (0x34)  /* SSP Rx Timeslot Active */
  20 #define SSTSS           (0x38)  /* SSP Timeslot Status */
  21 #define SSACD           (0x3C)  /* SSP Audio Clock Divider */
  22
  23 #if defined(CONFIG_PXA3xx)
  24 #define SSACDD          (0x40)  /* SSP Audio Clock Dither Divider */
  25 #endif
  26
  27 /* Common PXA2xx bits first */
  28 #define SSCR0_DSS       (0x0000000f)    /* Data Size Select (mask) */
  29 #define SSCR0_DataSize(x)  ((x) - 1)    /* Data Size Select [4..16] */
  30 #define SSCR0_FRF       (0x00000030)    /* FRame Format (mask) */
  31 #define SSCR0_Motorola  (0x0 << 4)      /* Motorola's Serial Peripheral Interface (SPI) */
  32 #define SSCR0_TI        (0x1 << 4)      /* Texas Instruments' Synchronous Serial Protocol (SSP) */
  33 #define SSCR0_National  (0x2 << 4)      /* National Microwire */
  34 #define SSCR0_ECS       (1 << 6)        /* External clock select */
  35 #define SSCR0_SSE       (1 << 7)        /* Synchronous Serial Port Enable */
  36
  37 #if defined(CONFIG_PXA25x)
  38 #define SSCR0_SCR       (0x0000ff00)    /* Serial Clock Rate (mask) */
  39 #define SSCR0_SerClkDiv(x) ((((x) - 2)/2) << 8) /* Divisor [2..512] */
  40 #elif defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
  41 #define SSCR0_SCR       (0x000fff00)    /* Serial Clock Rate (mask) */
  42 #define SSCR0_SerClkDiv(x) (((x) - 1) << 8) /* Divisor [1..4096] */
  43 #endif
  44
  45 #if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
  46 #define SSCR0_EDSS      (1 << 20)       /* Extended data size select */
  47 #define SSCR0_NCS       (1 << 21)       /* Network clock select */
  48 #define SSCR0_RIM       (1 << 22)       /* Receive FIFO overrrun interrupt mask */
  49 #define SSCR0_TUM       (1 << 23)       /* Transmit FIFO underrun interrupt mask */
  50 #define SSCR0_FRDC      (0x07000000)    /* Frame rate divider control (mask) */
  51 #define SSCR0_SlotsPerFrm(x) (((x) - 1) << 24)  /* Time slots per frame [1..8] */
  52 #define SSCR0_ADC       (1 << 30)       /* Audio clock select */
  53 #define SSCR0_MOD       (1 << 31)       /* Mode (normal or network) */
  54 #endif
  55
  56 #if defined(CONFIG_PXA3xx)
  57 #define SSCR0_FPCKE     (1 << 29)       /* FIFO packing enable */
  58 #endif
  59
  60 #define SSCR1_RIE       (1 << 0)        /* Receive FIFO Interrupt Enable */
  61 #define SSCR1_TIE       (1 << 1)        /* Transmit FIFO Interrupt Enable */
  62 #define SSCR1_LBM       (1 << 2)        /* Loop-Back Mode */
  63 #define SSCR1_SPO       (1 << 3)        /* Motorola SPI SSPSCLK polarity setting */
  64 #define SSCR1_SPH       (1 << 4)        /* Motorola SPI SSPSCLK phase setting */
  65 #define SSCR1_MWDS      (1 << 5)        /* Microwire Transmit Data Size */
  66 #define SSCR1_TFT       (0x000003c0)    /* Transmit FIFO Threshold (mask) */
  67 #define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..16] */
  68 #define SSCR1_RFT       (0x00003c00)    /* Receive FIFO Threshold (mask) */
  69 #define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */
  70
  71 #define SSSR_TNF        (1 << 2)        /* Transmit FIFO Not Full */
  72 #define SSSR_RNE        (1 << 3)        /* Receive FIFO Not Empty */
  73 #define SSSR_BSY        (1 << 4)        /* SSP Busy */
  74 #define SSSR_TFS        (1 << 5)        /* Transmit FIFO Service Request */
  75 #define SSSR_RFS        (1 << 6)        /* Receive FIFO Service Request */
  76 #define SSSR_ROR        (1 << 7)        /* Receive FIFO Overrun */
  77
  78 #define SSCR0_TIM               (1 << 23)       /* Transmit FIFO Under Run Interrupt Mask */
  79 #define SSCR0_RIM               (1 << 22)       /* Receive FIFO Over Run interrupt Mask */
  80 #define SSCR0_NCS               (1 << 21)       /* Network Clock Select */
  81 #define SSCR0_EDSS              (1 << 20)       /* Extended Data Size Select */
  82
  83 /* extra bits in PXA255, PXA26x and PXA27x SSP ports */
  84 #define SSCR0_TISSP             (1 << 4)        /* TI Sync Serial Protocol */
  85 #define SSCR0_PSP               (3 << 4)        /* PSP - Programmable Serial Protocol */
  86 #define SSCR1_TTELP             (1 << 31)       /* TXD Tristate Enable Last Phase */
  87 #define SSCR1_TTE               (1 << 30)       /* TXD Tristate Enable */
  88 #define SSCR1_EBCEI             (1 << 29)       /* Enable Bit Count Error interrupt */
  89 #define SSCR1_SCFR              (1 << 28)       /* Slave Clock free Running */
  90 #define SSCR1_ECRA              (1 << 27)       /* Enable Clock Request A */
  91 #define SSCR1_ECRB              (1 << 26)       /* Enable Clock request B */
  92 #define SSCR1_SCLKDIR           (1 << 25)       /* Serial Bit Rate Clock Direction */
  93 #define SSCR1_SFRMDIR           (1 << 24)       /* Frame Direction */
  94 #define SSCR1_RWOT              (1 << 23)       /* Receive Without Transmit */
  95 #define SSCR1_TRAIL             (1 << 22)       /* Trailing Byte */
  96 #define SSCR1_TSRE              (1 << 21)       /* Transmit Service Request Enable */
  97 #define SSCR1_RSRE              (1 << 20)       /* Receive Service Request Enable */
  98 #define SSCR1_TINTE             (1 << 19)       /* Receiver Time-out Interrupt enable */
  99 #define SSCR1_PINTE             (1 << 18)       /* Peripheral Trailing Byte Interupt Enable */
 100 #define SSCR1_IFS               (1 << 16)       /* Invert Frame Signal */
 101 #define SSCR1_STRF              (1 << 15)       /* Select FIFO or EFWR */
 102 #define SSCR1_EFWR              (1 << 14)       /* Enable FIFO Write/Read */
 103
 104 #define SSSR_BCE                (1 << 23)       /* Bit Count Error */
 105 #define SSSR_CSS                (1 << 22)       /* Clock Synchronisation Status */
 106 #define SSSR_TUR                (1 << 21)       /* Transmit FIFO Under Run */
 107 #define SSSR_EOC                (1 << 20)       /* End Of Chain */
 108 #define SSSR_TINT               (1 << 19)       /* Receiver Time-out Interrupt */
 109 #define SSSR_PINT               (1 << 18)       /* Peripheral Trailing Byte Interrupt */
 110
 111 #define SSPSP_FSRT              (1 << 25)       /* Frame Sync Relative Timing */
 112 #define SSPSP_DMYSTOP(x)        ((x) << 23)     /* Dummy Stop */
 113 #define SSPSP_SFRMWDTH(x)       ((x) << 16)     /* Serial Frame Width */
 114 #define SSPSP_SFRMDLY(x)        ((x) << 9)      /* Serial Frame Delay */
 115 #define SSPSP_DMYSTRT(x)        ((x) << 7)      /* Dummy Start */
 116 #define SSPSP_STRTDLY(x)        ((x) << 4)      /* Start Delay */
 117 #define SSPSP_ETDS              (1 << 3)        /* End of Transfer data State */
 118 #define SSPSP_SFRMP             (1 << 2)        /* Serial Frame Polarity */
 119 #define SSPSP_SCMODE(x)         ((x) << 0)      /* Serial Bit Rate Clock Mode */
 120
 121 #define SSACD_SCDB              (1 << 3)        /* SSPSYSCLK Divider Bypass */
 122 #define SSACD_ACPS(x)           ((x) << 4)      /* Audio clock PLL select */
 123 #define SSACD_ACDS(x)           ((x) << 0)      /* Audio clock divider select */
 124 #if defined(CONFIG_PXA3xx)
 125 #define SSACD_SCDX8             (1 << 7)        /* SYSCLK division ratio select */
 126 #endif
 127
 128
 129 #endif /* __ASM_ARCH_REGS_SSP_H */