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Diffstat (limited to 'include/fsl_dspi.h')
| -rw-r--r-- | include/fsl_dspi.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/include/fsl_dspi.h b/include/fsl_dspi.h new file mode 100644 index 00000000000..b569b4d2b62 --- /dev/null +++ b/include/fsl_dspi.h @@ -0,0 +1,150 @@ +/* + * Freescale DSPI Module Defines + * + * Copyright (C) 2004-2007, 2015 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * Chao Fu (B44548@freesacle.com) + * Haikun Wang (B53464@freescale.com) + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _FSL_DSPI_H_ +#define _FSL_DSPI_H_ + +/* DMA Serial Peripheral Interface (DSPI) */ +struct dspi { + u32 mcr; /* 0x00 */ + u32 resv0; /* 0x04 */ + u32 tcr; /* 0x08 */ + u32 ctar[8]; /* 0x0C - 0x28 */ + u32 sr; /* 0x2C */ + u32 irsr; /* 0x30 */ + u32 tfr; /* 0x34 - PUSHR */ + u32 rfr; /* 0x38 - POPR */ +#ifdef CONFIG_MCF547x_8x + u32 tfdr[4]; /* 0x3C */ + u8 resv2[0x30]; /* 0x40 */ + u32 rfdr[4]; /* 0x7C */ +#else + u32 tfdr[16]; /* 0x3C */ + u32 rfdr[16]; /* 0x7C */ +#endif +}; + +/* Module configuration */ +#define DSPI_MCR_MSTR 0x80000000 +#define DSPI_MCR_CSCK 0x40000000 +#define DSPI_MCR_DCONF(x) (((x) & 0x03) << 28) +#define DSPI_MCR_FRZ 0x08000000 +#define DSPI_MCR_MTFE 0x04000000 +#define DSPI_MCR_PCSSE 0x02000000 +#define DSPI_MCR_ROOE 0x01000000 +#define DSPI_MCR_PCSIS(x) (1 << (16 + (x))) +#define DSPI_MCR_PCSIS_MASK (0xff << 16) +#define DSPI_MCR_CSIS7 0x00800000 +#define DSPI_MCR_CSIS6 0x00400000 +#define DSPI_MCR_CSIS5 0x00200000 +#define DSPI_MCR_CSIS4 0x00100000 +#define DSPI_MCR_CSIS3 0x00080000 +#define DSPI_MCR_CSIS2 0x00040000 +#define DSPI_MCR_CSIS1 0x00020000 +#define DSPI_MCR_CSIS0 0x00010000 +#define DSPI_MCR_DOZE 0x00008000 +#define DSPI_MCR_MDIS 0x00004000 +#define DSPI_MCR_DTXF 0x00002000 +#define DSPI_MCR_DRXF 0x00001000 +#define DSPI_MCR_CTXF 0x00000800 +#define DSPI_MCR_CRXF 0x00000400 +#define DSPI_MCR_SMPL_PT(x) (((x) & 0x03) << 8) +#define DSPI_MCR_FCPCS 0x00000001 +#define DSPI_MCR_PES 0x00000001 +#define DSPI_MCR_HALT 0x00000001 + +/* Transfer count */ +#define DSPI_TCR_SPI_TCNT(x) (((x) & 0x0000FFFF) << 16) + +/* Clock and transfer attributes */ +#define DSPI_CTAR(x) (0x0c + (x * 4)) +#define DSPI_CTAR_DBR 0x80000000 +#define DSPI_CTAR_TRSZ(x) (((x) & 0x0F) << 27) +#define DSPI_CTAR_CPOL 0x04000000 +#define DSPI_CTAR_CPHA 0x02000000 +#define DSPI_CTAR_LSBFE 0x01000000 +#define DSPI_CTAR_PCSSCK(x) (((x) & 0x03) << 22) +#define DSPI_CTAR_PCSSCK_7CLK 0x00A00000 +#define DSPI_CTAR_PCSSCK_5CLK 0x00800000 +#define DSPI_CTAR_PCSSCK_3CLK 0x00400000 +#define DSPI_CTAR_PCSSCK_1CLK 0x00000000 +#define DSPI_CTAR_PASC(x) (((x) & 0x03) << 20) +#define DSPI_CTAR_PASC_7CLK 0x00300000 +#define DSPI_CTAR_PASC_5CLK 0x00200000 +#define DSPI_CTAR_PASC_3CLK 0x00100000 +#define DSPI_CTAR_PASC_1CLK 0x00000000 +#define DSPI_CTAR_PDT(x) (((x) & 0x03) << 18) +#define DSPI_CTAR_PDT_7CLK 0x000A0000 +#define DSPI_CTAR_PDT_5CLK 0x00080000 +#define DSPI_CTAR_PDT_3CLK 0x00040000 +#define DSPI_CTAR_PDT_1CLK 0x00000000 +#define DSPI_CTAR_PBR(x) (((x) & 0x03) << 16) +#define DSPI_CTAR_PBR_7CLK 0x00030000 +#define DSPI_CTAR_PBR_5CLK 0x00020000 +#define DSPI_CTAR_PBR_3CLK 0x00010000 +#define DSPI_CTAR_PBR_1CLK 0x00000000 +#define DSPI_CTAR_CSSCK(x) (((x) & 0x0F) << 12) +#define DSPI_CTAR_ASC(x) (((x) & 0x0F) << 8) +#define DSPI_CTAR_DT(x) (((x) & 0x0F) << 4) +#define DSPI_CTAR_BR(x) ((x) & 0x0F) + +/* Status */ +#define DSPI_SR_TCF 0x80000000 +#define DSPI_SR_TXRXS 0x40000000 +#define DSPI_SR_EOQF 0x10000000 +#define DSPI_SR_TFUF 0x08000000 +#define DSPI_SR_TFFF 0x02000000 +#define DSPI_SR_RFOF 0x00080000 +#define DSPI_SR_RFDF 0x00020000 +#define DSPI_SR_TXCTR(x) (((x) & 0x0000F000) >> 12) +#define DSPI_SR_TXPTR(x) (((x) & 0x00000F00) >> 8) +#define DSPI_SR_RXCTR(x) (((x) & 0x000000F0) >> 4) +#define DSPI_SR_RXPTR(x) ((x) & 0x0000000F) + +/* DMA/interrupt request selct and enable */ +#define DSPI_IRSR_TCFE 0x80000000 +#define DSPI_IRSR_EOQFE 0x10000000 +#define DSPI_IRSR_TFUFE 0x08000000 +#define DSPI_IRSR_TFFFE 0x02000000 +#define DSPI_IRSR_TFFFS 0x01000000 +#define DSPI_IRSR_RFOFE 0x00080000 +#define DSPI_IRSR_RFDFE 0x00020000 +#define DSPI_IRSR_RFDFS 0x00010000 + +/* Transfer control - 32-bit access */ +#define DSPI_TFR_PCS(x) (((1 << x) & 0x0000003f) << 16) +#define DSPI_TFR_CONT 0x80000000 +#define DSPI_TFR_CTAS(x) (((x) & 0x07) << 28) +#define DSPI_TFR_EOQ 0x08000000 +#define DSPI_TFR_CTCNT 0x04000000 +#define DSPI_TFR_CS7 0x00800000 +#define DSPI_TFR_CS6 0x00400000 +#define DSPI_TFR_CS5 0x00200000 +#define DSPI_TFR_CS4 0x00100000 +#define DSPI_TFR_CS3 0x00080000 +#define DSPI_TFR_CS2 0x00040000 +#define DSPI_TFR_CS1 0x00020000 +#define DSPI_TFR_CS0 0x00010000 + +/* Transfer Fifo */ +#define DSPI_TFR_TXDATA(x) ((x) & 0x0000FFFF) + +/* Bit definitions and macros for DRFR */ +#define DSPI_RFR_RXDATA(x) ((x) & 0x0000FFFF) + +/* Bit definitions and macros for DTFDR group */ +#define DSPI_TFDR_TXDATA(x) ((x) & 0x0000FFFF) +#define DSPI_TFDR_TXCMD(x) (((x) & 0x0000FFFF) << 16) + +/* Bit definitions and macros for DRFDR group */ +#define DSPI_RFDR_RXDATA(x) ((x) & 0x0000FFFF) + +#endif /* _FSL_DSPI_H_ */ |