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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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ec23a899d9
Move the MSIOF register and register bit definitions from the MSIOF SPI driver to the existing header file <linux/spi/sh_msiof.h>, so they can be shared with the MSIOF I2S driver. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patch.msgid.link/066d1086973eb309006258484e9fe8138807e565.1747401908.git.geert+renesas@glider.be Signed-off-by: Mark Brown <broonie@kernel.org>
147 lines
7.1 KiB
C
147 lines
7.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __SPI_SH_MSIOF_H__
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#define __SPI_SH_MSIOF_H__
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#include <linux/bitfield.h>
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#include <linux/bits.h>
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#define SITMDR1 0x00 /* Transmit Mode Register 1 */
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#define SITMDR2 0x04 /* Transmit Mode Register 2 */
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#define SITMDR3 0x08 /* Transmit Mode Register 3 */
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#define SIRMDR1 0x10 /* Receive Mode Register 1 */
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#define SIRMDR2 0x14 /* Receive Mode Register 2 */
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#define SIRMDR3 0x18 /* Receive Mode Register 3 */
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#define SITSCR 0x20 /* Transmit Clock Select Register */
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#define SIRSCR 0x22 /* Receive Clock Select Register (SH, A1, APE6) */
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#define SICTR 0x28 /* Control Register */
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#define SIFCTR 0x30 /* FIFO Control Register */
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#define SISTR 0x40 /* Status Register */
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#define SIIER 0x44 /* Interrupt Enable Register */
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#define SITDR1 0x48 /* Transmit Control Data Register 1 (SH, A1) */
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#define SITDR2 0x4c /* Transmit Control Data Register 2 (SH, A1) */
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#define SITFDR 0x50 /* Transmit FIFO Data Register */
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#define SIRDR1 0x58 /* Receive Control Data Register 1 (SH, A1) */
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#define SIRDR2 0x5c /* Receive Control Data Register 2 (SH, A1) */
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#define SIRFDR 0x60 /* Receive FIFO Data Register */
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/* SITMDR1 and SIRMDR1 */
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#define SIMDR1_TRMD BIT(31) /* Transfer Mode (1 = Master mode) */
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#define SIMDR1_SYNCMD GENMASK(29, 28) /* SYNC Mode */
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#define SIMDR1_SYNCMD_PULSE 0U /* Frame start sync pulse */
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#define SIMDR1_SYNCMD_SPI 2U /* Level mode/SPI */
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#define SIMDR1_SYNCMD_LR 3U /* L/R mode */
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#define SIMDR1_SYNCAC BIT(25) /* Sync Polarity (1 = Active-low) */
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#define SIMDR1_BITLSB BIT(24) /* MSB/LSB First (1 = LSB first) */
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#define SIMDR1_DTDL GENMASK(22, 20) /* Data Pin Bit Delay for MSIOF_SYNC */
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#define SIMDR1_SYNCDL GENMASK(18, 16) /* Frame Sync Signal Timing Delay */
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#define SIMDR1_FLD GENMASK(3, 2) /* Frame Sync Signal Interval (0-3) */
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#define SIMDR1_XXSTP BIT(0) /* Transmission/Reception Stop on FIFO */
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/* SITMDR1 */
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#define SITMDR1_PCON BIT(30) /* Transfer Signal Connection */
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#define SITMDR1_SYNCCH GENMASK(27, 26) /* Sync Signal Channel Select */
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/* 0=MSIOF_SYNC, 1=MSIOF_SS1, 2=MSIOF_SS2 */
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/* SITMDR2 and SIRMDR2 */
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#define SIMDR2_GRP GENMASK(31, 30) /* Group Count */
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#define SIMDR2_BITLEN1 GENMASK(28, 24) /* Data Size (8-32 bits) */
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#define SIMDR2_WDLEN1 GENMASK(23, 16) /* Word Count (1-64/256 (SH, A1))) */
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#define SIMDR2_GRPMASK GENMASK(3, 0) /* Group Output Mask 1-4 (SH, A1) */
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/* SITMDR3 and SIRMDR3 */
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#define SIMDR3_BITLEN2 GENMASK(28, 24) /* Data Size (8-32 bits) */
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#define SIMDR3_WDLEN2 GENMASK(23, 16) /* Word Count (1-64/256 (SH, A1))) */
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/* SITSCR and SIRSCR */
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#define SISCR_BRPS GENMASK(12, 8) /* Prescaler Setting (1-32) */
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#define SISCR_BRDV GENMASK(2, 0) /* Baud Rate Generator's Division Ratio */
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/* SICTR */
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#define SICTR_TSCKIZ GENMASK(31, 30) /* Transmit Clock I/O Polarity Select */
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#define SICTR_TSCKIZ_SCK BIT(31) /* Disable SCK when TX disabled */
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#define SICTR_TSCKIZ_POL BIT(30) /* Transmit Clock Polarity */
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#define SICTR_RSCKIZ GENMASK(29, 28) /* Receive Clock Polarity Select */
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#define SICTR_RSCKIZ_SCK BIT(29) /* Must match CTR_TSCKIZ_SCK */
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#define SICTR_RSCKIZ_POL BIT(28) /* Receive Clock Polarity */
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#define SICTR_TEDG BIT(27) /* Transmit Timing (1 = falling edge) */
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#define SICTR_REDG BIT(26) /* Receive Timing (1 = falling edge) */
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#define SICTR_TXDIZ GENMASK(23, 22) /* Pin Output When TX is Disabled */
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#define SICTR_TXDIZ_LOW 0U /* 0 */
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#define SICTR_TXDIZ_HIGH 1U /* 1 */
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#define SICTR_TXDIZ_HIZ 2U /* High-impedance */
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#define SICTR_TSCKE BIT(15) /* Transmit Serial Clock Output Enable */
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#define SICTR_TFSE BIT(14) /* Transmit Frame Sync Signal Output Enable */
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#define SICTR_TXE BIT(9) /* Transmit Enable */
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#define SICTR_RXE BIT(8) /* Receive Enable */
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#define SICTR_TXRST BIT(1) /* Transmit Reset */
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#define SICTR_RXRST BIT(0) /* Receive Reset */
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/* SIFCTR */
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#define SIFCTR_TFWM GENMASK(31, 29) /* Transmit FIFO Watermark */
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#define SIFCTR_TFWM_64 0U /* Transfer Request when 64 empty stages */
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#define SIFCTR_TFWM_32 1U /* Transfer Request when 32 empty stages */
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#define SIFCTR_TFWM_24 2U /* Transfer Request when 24 empty stages */
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#define SIFCTR_TFWM_16 3U /* Transfer Request when 16 empty stages */
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#define SIFCTR_TFWM_12 4U /* Transfer Request when 12 empty stages */
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#define SIFCTR_TFWM_8 5U /* Transfer Request when 8 empty stages */
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#define SIFCTR_TFWM_4 6U /* Transfer Request when 4 empty stages */
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#define SIFCTR_TFWM_1 7U /* Transfer Request when 1 empty stage */
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#define SIFCTR_TFUA GENMASK(28, 20) /* Transmit FIFO Usable Area */
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#define SIFCTR_RFWM GENMASK(15, 13) /* Receive FIFO Watermark */
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#define SIFCTR_RFWM_1 0U /* Transfer Request when 1 valid stages */
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#define SIFCTR_RFWM_4 1U /* Transfer Request when 4 valid stages */
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#define SIFCTR_RFWM_8 2U /* Transfer Request when 8 valid stages */
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#define SIFCTR_RFWM_16 3U /* Transfer Request when 16 valid stages */
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#define SIFCTR_RFWM_32 4U /* Transfer Request when 32 valid stages */
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#define SIFCTR_RFWM_64 5U /* Transfer Request when 64 valid stages */
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#define SIFCTR_RFWM_128 6U /* Transfer Request when 128 valid stages */
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#define SIFCTR_RFWM_256 7U /* Transfer Request when 256 valid stages */
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#define SIFCTR_RFUA GENMASK(12, 4) /* Receive FIFO Usable Area (0x40 = full) */
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/* SISTR */
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#define SISTR_TFEMP BIT(29) /* Transmit FIFO Empty */
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#define SISTR_TDREQ BIT(28) /* Transmit Data Transfer Request */
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#define SISTR_TEOF BIT(23) /* Frame Transmission End */
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#define SISTR_TFSERR BIT(21) /* Transmit Frame Synchronization Error */
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#define SISTR_TFOVF BIT(20) /* Transmit FIFO Overflow */
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#define SISTR_TFUDF BIT(19) /* Transmit FIFO Underflow */
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#define SISTR_RFFUL BIT(13) /* Receive FIFO Full */
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#define SISTR_RDREQ BIT(12) /* Receive Data Transfer Request */
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#define SISTR_REOF BIT(7) /* Frame Reception End */
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#define SISTR_RFSERR BIT(5) /* Receive Frame Synchronization Error */
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#define SISTR_RFUDF BIT(4) /* Receive FIFO Underflow */
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#define SISTR_RFOVF BIT(3) /* Receive FIFO Overflow */
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/* SIIER */
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#define SIIER_TDMAE BIT(31) /* Transmit Data DMA Transfer Req. Enable */
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#define SIIER_TFEMPE BIT(29) /* Transmit FIFO Empty Enable */
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#define SIIER_TDREQE BIT(28) /* Transmit Data Transfer Request Enable */
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#define SIIER_TEOFE BIT(23) /* Frame Transmission End Enable */
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#define SIIER_TFSERRE BIT(21) /* Transmit Frame Sync Error Enable */
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#define SIIER_TFOVFE BIT(20) /* Transmit FIFO Overflow Enable */
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#define SIIER_TFUDFE BIT(19) /* Transmit FIFO Underflow Enable */
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#define SIIER_RDMAE BIT(15) /* Receive Data DMA Transfer Req. Enable */
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#define SIIER_RFFULE BIT(13) /* Receive FIFO Full Enable */
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#define SIIER_RDREQE BIT(12) /* Receive Data Transfer Request Enable */
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#define SIIER_REOFE BIT(7) /* Frame Reception End Enable */
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#define SIIER_RFSERRE BIT(5) /* Receive Frame Sync Error Enable */
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#define SIIER_RFUDFE BIT(4) /* Receive FIFO Underflow Enable */
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#define SIIER_RFOVFE BIT(3) /* Receive FIFO Overflow Enable */
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enum {
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MSIOF_SPI_HOST,
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MSIOF_SPI_TARGET,
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};
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struct sh_msiof_spi_info {
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int tx_fifo_override;
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int rx_fifo_override;
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u16 num_chipselect;
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int mode;
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unsigned int dma_tx_id;
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unsigned int dma_rx_id;
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u32 dtdl;
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u32 syncdl;
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};
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#endif /* __SPI_SH_MSIOF_H__ */
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