1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Freescale DSPI Module Defines 4 * 5 * Copyright (C) 2004-2007, 2015 Freescale Semiconductor, Inc. 6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 7 * Chao Fu (B44548@freesacle.com) 8 * Haikun Wang (B53464@freescale.com) 9 */ 10 11 #ifndef _FSL_DSPI_H_ 12 #define _FSL_DSPI_H_ 13 14 /* DMA Serial Peripheral Interface (DSPI) */ 15 struct dspi { 16 u32 mcr; /* 0x00 */ 17 u32 resv0; /* 0x04 */ 18 u32 tcr; /* 0x08 */ 19 u32 ctar[8]; /* 0x0C - 0x28 */ 20 u32 sr; /* 0x2C */ 21 u32 irsr; /* 0x30 */ 22 u32 tfr; /* 0x34 - PUSHR */ 23 u32 rfr; /* 0x38 - POPR */ 24 #ifdef CONFIG_MCF547x_8x 25 u32 tfdr[4]; /* 0x3C */ 26 u8 resv2[0x30]; /* 0x40 */ 27 u32 rfdr[4]; /* 0x7C */ 28 #else 29 u32 tfdr[16]; /* 0x3C */ 30 u32 rfdr[16]; /* 0x7C */ 31 #endif 32 }; 33 34 /* Module configuration */ 35 #define DSPI_MCR_MSTR 0x80000000 36 #define DSPI_MCR_CSCK 0x40000000 37 #define DSPI_MCR_DCONF(x) (((x) & 0x03) << 28) 38 #define DSPI_MCR_FRZ 0x08000000 39 #define DSPI_MCR_MTFE 0x04000000 40 #define DSPI_MCR_PCSSE 0x02000000 41 #define DSPI_MCR_ROOE 0x01000000 42 #define DSPI_MCR_PCSIS(x) (1 << (16 + (x))) 43 #define DSPI_MCR_PCSIS_MASK (0xff << 16) 44 #define DSPI_MCR_CSIS7 0x00800000 45 #define DSPI_MCR_CSIS6 0x00400000 46 #define DSPI_MCR_CSIS5 0x00200000 47 #define DSPI_MCR_CSIS4 0x00100000 48 #define DSPI_MCR_CSIS3 0x00080000 49 #define DSPI_MCR_CSIS2 0x00040000 50 #define DSPI_MCR_CSIS1 0x00020000 51 #define DSPI_MCR_CSIS0 0x00010000 52 #define DSPI_MCR_DOZE 0x00008000 53 #define DSPI_MCR_MDIS 0x00004000 54 #define DSPI_MCR_DTXF 0x00002000 55 #define DSPI_MCR_DRXF 0x00001000 56 #define DSPI_MCR_CTXF 0x00000800 57 #define DSPI_MCR_CRXF 0x00000400 58 #define DSPI_MCR_SMPL_PT(x) (((x) & 0x03) << 8) 59 #define DSPI_MCR_FCPCS 0x00000001 60 #define DSPI_MCR_PES 0x00000001 61 #define DSPI_MCR_HALT 0x00000001 62 63 /* Transfer count */ 64 #define DSPI_TCR_SPI_TCNT(x) (((x) & 0x0000FFFF) << 16) 65 66 /* Clock and transfer attributes */ 67 #define DSPI_CTAR(x) (0x0c + (x * 4)) 68 #define DSPI_CTAR_DBR 0x80000000 69 #define DSPI_CTAR_TRSZ(x) (((x) & 0x0F) << 27) 70 #define DSPI_CTAR_CPOL 0x04000000 71 #define DSPI_CTAR_CPHA 0x02000000 72 #define DSPI_CTAR_LSBFE 0x01000000 73 #define DSPI_CTAR_PCSSCK(x) (((x) & 0x03) << 22) 74 #define DSPI_CTAR_PCSSCK_7CLK 0x00A00000 75 #define DSPI_CTAR_PCSSCK_5CLK 0x00800000 76 #define DSPI_CTAR_PCSSCK_3CLK 0x00400000 77 #define DSPI_CTAR_PCSSCK_1CLK 0x00000000 78 #define DSPI_CTAR_PASC(x) (((x) & 0x03) << 20) 79 #define DSPI_CTAR_PASC_7CLK 0x00300000 80 #define DSPI_CTAR_PASC_5CLK 0x00200000 81 #define DSPI_CTAR_PASC_3CLK 0x00100000 82 #define DSPI_CTAR_PASC_1CLK 0x00000000 83 #define DSPI_CTAR_PDT(x) (((x) & 0x03) << 18) 84 #define DSPI_CTAR_PDT_7CLK 0x000A0000 85 #define DSPI_CTAR_PDT_5CLK 0x00080000 86 #define DSPI_CTAR_PDT_3CLK 0x00040000 87 #define DSPI_CTAR_PDT_1CLK 0x00000000 88 #define DSPI_CTAR_PBR(x) (((x) & 0x03) << 16) 89 #define DSPI_CTAR_PBR_7CLK 0x00030000 90 #define DSPI_CTAR_PBR_5CLK 0x00020000 91 #define DSPI_CTAR_PBR_3CLK 0x00010000 92 #define DSPI_CTAR_PBR_1CLK 0x00000000 93 #define DSPI_CTAR_CSSCK(x) (((x) & 0x0F) << 12) 94 #define DSPI_CTAR_ASC(x) (((x) & 0x0F) << 8) 95 #define DSPI_CTAR_DT(x) (((x) & 0x0F) << 4) 96 #define DSPI_CTAR_BR(x) ((x) & 0x0F) 97 #define DSPI_CTAR_SCALE_BITS 0xf 98 99 /* Status */ 100 #define DSPI_SR_TCF 0x80000000 101 #define DSPI_SR_TXRXS 0x40000000 102 #define DSPI_SR_EOQF 0x10000000 103 #define DSPI_SR_TFUF 0x08000000 104 #define DSPI_SR_TFFF 0x02000000 105 #define DSPI_SR_RFOF 0x00080000 106 #define DSPI_SR_RFDF 0x00020000 107 #define DSPI_SR_TXCTR(x) (((x) & 0x0000F000) >> 12) 108 #define DSPI_SR_TXPTR(x) (((x) & 0x00000F00) >> 8) 109 #define DSPI_SR_RXCTR(x) (((x) & 0x000000F0) >> 4) 110 #define DSPI_SR_RXPTR(x) ((x) & 0x0000000F) 111 112 /* DMA/interrupt request selct and enable */ 113 #define DSPI_IRSR_TCFE 0x80000000 114 #define DSPI_IRSR_EOQFE 0x10000000 115 #define DSPI_IRSR_TFUFE 0x08000000 116 #define DSPI_IRSR_TFFFE 0x02000000 117 #define DSPI_IRSR_TFFFS 0x01000000 118 #define DSPI_IRSR_RFOFE 0x00080000 119 #define DSPI_IRSR_RFDFE 0x00020000 120 #define DSPI_IRSR_RFDFS 0x00010000 121 122 /* Transfer control - 32-bit access */ 123 #define DSPI_TFR_PCS(x) (((1 << x) & 0x0000003f) << 16) 124 #define DSPI_TFR_CONT 0x80000000 125 #define DSPI_TFR_CTAS(x) (((x) & 0x07) << 28) 126 #define DSPI_TFR_EOQ 0x08000000 127 #define DSPI_TFR_CTCNT 0x04000000 128 #define DSPI_TFR_CS7 0x00800000 129 #define DSPI_TFR_CS6 0x00400000 130 #define DSPI_TFR_CS5 0x00200000 131 #define DSPI_TFR_CS4 0x00100000 132 #define DSPI_TFR_CS3 0x00080000 133 #define DSPI_TFR_CS2 0x00040000 134 #define DSPI_TFR_CS1 0x00020000 135 #define DSPI_TFR_CS0 0x00010000 136 137 /* Transfer Fifo */ 138 #define DSPI_TFR_TXDATA(x) ((x) & 0x0000FFFF) 139 140 /* Bit definitions and macros for DRFR */ 141 #define DSPI_RFR_RXDATA(x) ((x) & 0x0000FFFF) 142 143 /* Bit definitions and macros for DTFDR group */ 144 #define DSPI_TFDR_TXDATA(x) ((x) & 0x0000FFFF) 145 #define DSPI_TFDR_TXCMD(x) (((x) & 0x0000FFFF) << 16) 146 147 /* Bit definitions and macros for DRFDR group */ 148 #define DSPI_RFDR_RXDATA(x) ((x) & 0x0000FFFF) 149 150 #endif /* _FSL_DSPI_H_ */ 151