| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __SPI_SH_MSIOF_H__ |
| #define __SPI_SH_MSIOF_H__ |
| |
| #include <linux/bitfield.h> |
| #include <linux/bits.h> |
| |
| #define SITMDR1 0x00 /* Transmit Mode Register 1 */ |
| #define SITMDR2 0x04 /* Transmit Mode Register 2 */ |
| #define SITMDR3 0x08 /* Transmit Mode Register 3 */ |
| #define SIRMDR1 0x10 /* Receive Mode Register 1 */ |
| #define SIRMDR2 0x14 /* Receive Mode Register 2 */ |
| #define SIRMDR3 0x18 /* Receive Mode Register 3 */ |
| #define SITSCR 0x20 /* Transmit Clock Select Register */ |
| #define SIRSCR 0x22 /* Receive Clock Select Register (SH, A1, APE6) */ |
| #define SICTR 0x28 /* Control Register */ |
| #define SIFCTR 0x30 /* FIFO Control Register */ |
| #define SISTR 0x40 /* Status Register */ |
| #define SIIER 0x44 /* Interrupt Enable Register */ |
| #define SITDR1 0x48 /* Transmit Control Data Register 1 (SH, A1) */ |
| #define SITDR2 0x4c /* Transmit Control Data Register 2 (SH, A1) */ |
| #define SITFDR 0x50 /* Transmit FIFO Data Register */ |
| #define SIRDR1 0x58 /* Receive Control Data Register 1 (SH, A1) */ |
| #define SIRDR2 0x5c /* Receive Control Data Register 2 (SH, A1) */ |
| #define SIRFDR 0x60 /* Receive FIFO Data Register */ |
| |
| /* SITMDR1 and SIRMDR1 */ |
| #define SIMDR1_TRMD BIT(31) /* Transfer Mode (1 = Master mode) */ |
| #define SIMDR1_SYNCMD GENMASK(29, 28) /* SYNC Mode */ |
| #define SIMDR1_SYNCMD_PULSE 0U /* Frame start sync pulse */ |
| #define SIMDR1_SYNCMD_SPI 2U /* Level mode/SPI */ |
| #define SIMDR1_SYNCMD_LR 3U /* L/R mode */ |
| #define SIMDR1_SYNCAC BIT(25) /* Sync Polarity (1 = Active-low) */ |
| #define SIMDR1_BITLSB BIT(24) /* MSB/LSB First (1 = LSB first) */ |
| #define SIMDR1_DTDL GENMASK(22, 20) /* Data Pin Bit Delay for MSIOF_SYNC */ |
| #define SIMDR1_SYNCDL GENMASK(18, 16) /* Frame Sync Signal Timing Delay */ |
| #define SIMDR1_FLD GENMASK(3, 2) /* Frame Sync Signal Interval (0-3) */ |
| #define SIMDR1_XXSTP BIT(0) /* Transmission/Reception Stop on FIFO */ |
| /* SITMDR1 */ |
| #define SITMDR1_PCON BIT(30) /* Transfer Signal Connection */ |
| #define SITMDR1_SYNCCH GENMASK(27, 26) /* Sync Signal Channel Select */ |
| /* 0=MSIOF_SYNC, 1=MSIOF_SS1, 2=MSIOF_SS2 */ |
| |
| /* SITMDR2 and SIRMDR2 */ |
| #define SIMDR2_GRP GENMASK(31, 30) /* Group Count */ |
| #define SIMDR2_BITLEN1 GENMASK(28, 24) /* Data Size (8-32 bits) */ |
| #define SIMDR2_WDLEN1 GENMASK(23, 16) /* Word Count (1-64/256 (SH, A1))) */ |
| #define SIMDR2_GRPMASK GENMASK(3, 0) /* Group Output Mask 1-4 (SH, A1) */ |
| |
| /* SITMDR3 and SIRMDR3 */ |
| #define SIMDR3_BITLEN2 GENMASK(28, 24) /* Data Size (8-32 bits) */ |
| #define SIMDR3_WDLEN2 GENMASK(23, 16) /* Word Count (1-64/256 (SH, A1))) */ |
| |
| /* SITSCR and SIRSCR */ |
| #define SISCR_BRPS GENMASK(12, 8) /* Prescaler Setting (1-32) */ |
| #define SISCR_BRDV GENMASK(2, 0) /* Baud Rate Generator's Division Ratio */ |
| |
| /* SICTR */ |
| #define SICTR_TSCKIZ GENMASK(31, 30) /* Transmit Clock I/O Polarity Select */ |
| #define SICTR_TSCKIZ_SCK BIT(31) /* Disable SCK when TX disabled */ |
| #define SICTR_TSCKIZ_POL BIT(30) /* Transmit Clock Polarity */ |
| #define SICTR_RSCKIZ GENMASK(29, 28) /* Receive Clock Polarity Select */ |
| #define SICTR_RSCKIZ_SCK BIT(29) /* Must match CTR_TSCKIZ_SCK */ |
| #define SICTR_RSCKIZ_POL BIT(28) /* Receive Clock Polarity */ |
| #define SICTR_TEDG BIT(27) /* Transmit Timing (1 = falling edge) */ |
| #define SICTR_REDG BIT(26) /* Receive Timing (1 = falling edge) */ |
| #define SICTR_TXDIZ GENMASK(23, 22) /* Pin Output When TX is Disabled */ |
| #define SICTR_TXDIZ_LOW 0U /* 0 */ |
| #define SICTR_TXDIZ_HIGH 1U /* 1 */ |
| #define SICTR_TXDIZ_HIZ 2U /* High-impedance */ |
| #define SICTR_TSCKE BIT(15) /* Transmit Serial Clock Output Enable */ |
| #define SICTR_TFSE BIT(14) /* Transmit Frame Sync Signal Output Enable */ |
| #define SICTR_TXE BIT(9) /* Transmit Enable */ |
| #define SICTR_RXE BIT(8) /* Receive Enable */ |
| #define SICTR_TXRST BIT(1) /* Transmit Reset */ |
| #define SICTR_RXRST BIT(0) /* Receive Reset */ |
| |
| /* SIFCTR */ |
| #define SIFCTR_TFWM GENMASK(31, 29) /* Transmit FIFO Watermark */ |
| #define SIFCTR_TFWM_64 0U /* Transfer Request when 64 empty stages */ |
| #define SIFCTR_TFWM_32 1U /* Transfer Request when 32 empty stages */ |
| #define SIFCTR_TFWM_24 2U /* Transfer Request when 24 empty stages */ |
| #define SIFCTR_TFWM_16 3U /* Transfer Request when 16 empty stages */ |
| #define SIFCTR_TFWM_12 4U /* Transfer Request when 12 empty stages */ |
| #define SIFCTR_TFWM_8 5U /* Transfer Request when 8 empty stages */ |
| #define SIFCTR_TFWM_4 6U /* Transfer Request when 4 empty stages */ |
| #define SIFCTR_TFWM_1 7U /* Transfer Request when 1 empty stage */ |
| #define SIFCTR_TFUA GENMASK(28, 20) /* Transmit FIFO Usable Area */ |
| #define SIFCTR_RFWM GENMASK(15, 13) /* Receive FIFO Watermark */ |
| #define SIFCTR_RFWM_1 0U /* Transfer Request when 1 valid stages */ |
| #define SIFCTR_RFWM_4 1U /* Transfer Request when 4 valid stages */ |
| #define SIFCTR_RFWM_8 2U /* Transfer Request when 8 valid stages */ |
| #define SIFCTR_RFWM_16 3U /* Transfer Request when 16 valid stages */ |
| #define SIFCTR_RFWM_32 4U /* Transfer Request when 32 valid stages */ |
| #define SIFCTR_RFWM_64 5U /* Transfer Request when 64 valid stages */ |
| #define SIFCTR_RFWM_128 6U /* Transfer Request when 128 valid stages */ |
| #define SIFCTR_RFWM_256 7U /* Transfer Request when 256 valid stages */ |
| #define SIFCTR_RFUA GENMASK(12, 4) /* Receive FIFO Usable Area (0x40 = full) */ |
| |
| /* SISTR */ |
| #define SISTR_TFEMP BIT(29) /* Transmit FIFO Empty */ |
| #define SISTR_TDREQ BIT(28) /* Transmit Data Transfer Request */ |
| #define SISTR_TEOF BIT(23) /* Frame Transmission End */ |
| #define SISTR_TFSERR BIT(21) /* Transmit Frame Synchronization Error */ |
| #define SISTR_TFOVF BIT(20) /* Transmit FIFO Overflow */ |
| #define SISTR_TFUDF BIT(19) /* Transmit FIFO Underflow */ |
| #define SISTR_RFFUL BIT(13) /* Receive FIFO Full */ |
| #define SISTR_RDREQ BIT(12) /* Receive Data Transfer Request */ |
| #define SISTR_REOF BIT(7) /* Frame Reception End */ |
| #define SISTR_RFSERR BIT(5) /* Receive Frame Synchronization Error */ |
| #define SISTR_RFUDF BIT(4) /* Receive FIFO Underflow */ |
| #define SISTR_RFOVF BIT(3) /* Receive FIFO Overflow */ |
| |
| /* SIIER */ |
| #define SIIER_TDMAE BIT(31) /* Transmit Data DMA Transfer Req. Enable */ |
| #define SIIER_TFEMPE BIT(29) /* Transmit FIFO Empty Enable */ |
| #define SIIER_TDREQE BIT(28) /* Transmit Data Transfer Request Enable */ |
| #define SIIER_TEOFE BIT(23) /* Frame Transmission End Enable */ |
| #define SIIER_TFSERRE BIT(21) /* Transmit Frame Sync Error Enable */ |
| #define SIIER_TFOVFE BIT(20) /* Transmit FIFO Overflow Enable */ |
| #define SIIER_TFUDFE BIT(19) /* Transmit FIFO Underflow Enable */ |
| #define SIIER_RDMAE BIT(15) /* Receive Data DMA Transfer Req. Enable */ |
| #define SIIER_RFFULE BIT(13) /* Receive FIFO Full Enable */ |
| #define SIIER_RDREQE BIT(12) /* Receive Data Transfer Request Enable */ |
| #define SIIER_REOFE BIT(7) /* Frame Reception End Enable */ |
| #define SIIER_RFSERRE BIT(5) /* Receive Frame Sync Error Enable */ |
| #define SIIER_RFUDFE BIT(4) /* Receive FIFO Underflow Enable */ |
| #define SIIER_RFOVFE BIT(3) /* Receive FIFO Overflow Enable */ |
| |
| enum { |
| MSIOF_SPI_HOST, |
| MSIOF_SPI_TARGET, |
| }; |
| |
| struct sh_msiof_spi_info { |
| int tx_fifo_override; |
| int rx_fifo_override; |
| u16 num_chipselect; |
| int mode; |
| unsigned int dma_tx_id; |
| unsigned int dma_rx_id; |
| u32 dtdl; |
| u32 syncdl; |
| }; |
| |
| #endif /* __SPI_SH_MSIOF_H__ */ |
