| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * 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) | |
| */ | |
| #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 */ | |
| u32 tfdr[16]; /* 0x3C */ | |
| u32 rfdr[16]; /* 0x7C */ | |
| }; | |
| /* 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) | |
| #define DSPI_CTAR_SCALE_BITS 0xf | |
| /* 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_ */ |