diff options
Diffstat (limited to 'drivers/spi/andes_spi.h')
-rw-r--r-- | drivers/spi/andes_spi.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/drivers/spi/andes_spi.h b/drivers/spi/andes_spi.h deleted file mode 100644 index b7d294599a..0000000000 --- a/drivers/spi/andes_spi.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Register definitions for the Andes SPI Controller - * - * (C) Copyright 2011 Andes Technology - * Macpaul Lin <macpaul@andestech.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef __ANDES_SPI_H -#define __ANDES_SPI_H - -struct andes_spi_regs { - unsigned int apb; /* 0x00 - APB SPI interface setting */ - unsigned int pio; /* 0x04 - PIO reg */ - unsigned int cr; /* 0x08 - SPI Control reg */ - unsigned int st; /* 0x0c - SPI Status reg */ - unsigned int ie; /* 0x10 - Interrupt Enable reg */ - unsigned int ist; /* 0x14 - Interrupt Status reg */ - unsigned int dcr; /* 0x18 - data control reg */ - unsigned int data; /* 0x1c - data register */ - unsigned int ahb; /* 0x20 - AHB SPI interface setting */ - unsigned int ver; /* 0x3c - SPI version reg */ -}; - -#define BIT(x) (1 << (x)) - -/* 0x00 - APB SPI interface setting register */ -#define ANDES_SPI_APB_BAUD(x) (((x) & 0xff) < 0) -#define ANDES_SPI_APB_CSHT(x) (((x) & 0xf) < 16) -#define ANDES_SPI_APB_SPNTS BIT(20) /* 0: normal, 1: delay */ -#define ANDES_SPI_APB_CPHA BIT(24) /* 0: Sampling at odd edges */ -#define ANDES_SPI_APB_CPOL BIT(25) /* 0: SCK low, 1: SCK high */ -#define ANDES_SPI_APB_MSSL BIT(26) /* 0: SPI Master, 1: slave */ - -/* 0x04 - PIO register */ -#define ANDES_SPI_PIO_MISO BIT(0) /* input value of pin MISO */ -#define ANDES_SPI_PIO_MOSI BIT(1) /* I/O value of pin MOSI */ -#define ANDES_SPI_PIO_SCK BIT(2) /* I/O value of pin SCK */ -#define ANDES_SPI_PIO_CS BIT(3) /* I/O value of pin CS */ -#define ANDES_SPI_PIO_PIOE BIT(4) /* Programming IO Enable */ - -/* 0x08 - SPI Control register */ -#define ANDES_SPI_CR_SPIRST BIT(0) /* SPI mode reset */ -#define ANDES_SPI_CR_RXFRST BIT(1) /* RxFIFO reset */ -#define ANDES_SPI_CR_TXFRST BIT(2) /* TxFIFO reset */ -#define ANDES_SPI_CR_RXFTH(x) (((x) & 0x1f) << 10) /* RxFIFO Threshold */ -#define ANDES_SPI_CR_TXFTH(x) (((x) & 0x1f) << 18) /* TxFIFO Threshold */ - -/* 0x0c - SPI Status register */ -#define ANDES_SPI_ST_SPIBSY BIT(0) /* SPI Transfer is active */ -#define ANDES_SPI_ST_RXFEM BIT(8) /* RxFIFO Empty Flag */ -#define ANDES_SPI_ST_RXFEL BIT(9) /* RxFIFO Full Flag */ -#define ANDES_SPI_ST_RXFVE(x) (((x) >> 10) & 0x1f) -#define ANDES_SPI_ST_TXFEM BIT(16) /* TxFIFO Empty Flag */ -#define ANDES_SPI_ST_TXFEL BIT(7) /* TxFIFO Full Flag */ -#define ANDES_SPI_ST_TXFVE(x) (((x) >> 18) & 0x1f) - -/* 0x10 - Interrupt Enable register */ -#define ANDES_SPI_IE_RXFORIE BIT(0) /* RxFIFO overrun intr */ -#define ANDES_SPI_IE_TXFURIE BIT(1) /* TxFOFO underrun intr */ -#define ANDES_SPI_IE_RXFTHIE BIT(2) /* RxFIFO threshold intr */ -#define ANDES_SPI_IE_TXFTHIE BIT(3) /* TxFIFO threshold intr */ -#define ANDES_SPI_IE_SPIEIE BIT(4) /* SPI transmit END intr */ -#define ANDES_SPI_IE_SPCFIE BIT(5) /* AHB/APB TxReq conflict */ - -/* 0x14 - Interrupt Status Register */ -#define ANDES_SPI_IST_RXFORI BIT(0) /* has RxFIFO overrun */ -#define ANDES_SPI_IST_TXFURI BIT(1) /* has TxFOFO underrun */ -#define ANDES_SPI_IST_RXFTHI BIT(2) /* has RxFIFO threshold */ -#define ANDES_SPI_IST_TXFTHI BIT(3) /* has TxFIFO threshold */ -#define ANDES_SPI_IST_SPIEI BIT(4) /* has SPI transmit END */ -#define ANDES_SPI_IST_SPCFI BIT(5) /* has AHB/APB TxReq conflict */ - -/* 0x18 - Data Control Register */ -#define ANDES_SPI_DCR_RCNT(x) (((x) & 0x3ff) << 0) -#define ANDES_SPI_DCR_DYCNT(x) (((x) & 0x7) << 12) -#define ANDES_SPI_DCR_WCNT(x) (((x) & 0x3ff) << 16) -#define ANDES_SPI_DCR_TRAMODE(x) (((x) & 0x7) << 28) -#define ANDES_SPI_DCR_SPIT BIT(31) /* SPI bus trigger */ - -#define ANDES_SPI_DCR_MODE_WRCON ANDES_SPI_DCR_TRAMODE(0) /* w/r at the same time */ -#define ANDES_SPI_DCR_MODE_WO ANDES_SPI_DCR_TRAMODE(1) /* write only */ -#define ANDES_SPI_DCR_MODE_RO ANDES_SPI_DCR_TRAMODE(2) /* read only */ -#define ANDES_SPI_DCR_MODE_WR ANDES_SPI_DCR_TRAMODE(3) /* write, read */ -#define ANDES_SPI_DCR_MODE_RW ANDES_SPI_DCR_TRAMODE(4) /* read, write */ -#define ANDES_SPI_DCR_MODE_WDR ANDES_SPI_DCR_TRAMODE(5) /* write, dummy, read */ -#define ANDES_SPI_DCR_MODE_RDW ANDES_SPI_DCR_TRAMODE(6) /* read, dummy, write */ -#define ANDES_SPI_DCR_MODE_RECEIVE ANDES_SPI_DCR_TRAMODE(7) /* receive */ - -/* 0x20 - AHB SPI interface setting register */ -#define ANDES_SPI_AHB_BAUD(x) (((x) & 0xff) < 0) -#define ANDES_SPI_AHB_CSHT(x) (((x) & 0xf) < 16) -#define ANDES_SPI_AHB_SPNTS BIT(20) /* 0: normal, 1: delay */ -#define ANDES_SPI_AHB_CPHA BIT(24) /* 0: Sampling at odd edges */ -#define ANDES_SPI_AHB_CPOL BIT(25) /* 0: SCK low, 1: SCK high */ -#define ANDES_SPI_AHB_MSSL BIT(26) /* only Master mode */ - -/* 0x3c - Version Register - (Year V.MAJOR.MINOR) */ -#define ANDES_SPI_VER_MINOR(x) (((x) >> 0) & 0xf) -#define ANDES_SPI_VER_MAJOR(x) (((x) >> 8) & 0xf) -#define ANDES_SPI_VER_YEAR(x) (((x) >> 16) & 0xf) - -struct andes_spi_slave { - struct spi_slave slave; - struct andes_spi_regs *regs; - unsigned int freq; -}; - -static inline struct andes_spi_slave *to_andes_spi(struct spi_slave *slave) -{ - return container_of(slave, struct andes_spi_slave, slave); -} - -#endif /* __ANDES_SPI_H */ |