diff options
Diffstat (limited to 'include/spi.h')
| -rw-r--r-- | include/spi.h | 75 |
1 files changed, 34 insertions, 41 deletions
diff --git a/include/spi.h b/include/spi.h index b4d27232ec..4b88d3986e 100644 --- a/include/spi.h +++ b/include/spi.h @@ -11,41 +11,27 @@ #define _SPI_H_ /* SPI mode flags */ -#define SPI_CPHA 0x01 /* clock phase */ -#define SPI_CPOL 0x02 /* clock polarity */ -#define SPI_MODE_0 (0|0) /* (original MicroWire) */ -#define SPI_MODE_1 (0|SPI_CPHA) -#define SPI_MODE_2 (SPI_CPOL|0) -#define SPI_MODE_3 (SPI_CPOL|SPI_CPHA) -#define SPI_CS_HIGH 0x04 /* CS active high */ -#define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */ -#define SPI_3WIRE 0x10 /* SI/SO signals shared */ -#define SPI_LOOP 0x20 /* loopback mode */ -#define SPI_SLAVE 0x40 /* slave mode */ -#define SPI_PREAMBLE 0x80 /* Skip preamble bytes */ - -/* SPI transfer flags */ -#define SPI_XFER_BEGIN 0x01 /* Assert CS before transfer */ -#define SPI_XFER_END 0x02 /* Deassert CS after transfer */ -#define SPI_XFER_MMAP 0x08 /* Memory Mapped start */ -#define SPI_XFER_MMAP_END 0x10 /* Memory Mapped End */ -#define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END) -#define SPI_XFER_U_PAGE (1 << 5) - -/* SPI TX operation modes */ -#define SPI_OPM_TX_QPP (1 << 0) -#define SPI_OPM_TX_BP (1 << 1) - -/* SPI RX operation modes */ -#define SPI_OPM_RX_AS (1 << 0) -#define SPI_OPM_RX_AF (1 << 1) -#define SPI_OPM_RX_DOUT (1 << 2) -#define SPI_OPM_RX_DIO (1 << 3) -#define SPI_OPM_RX_QOF (1 << 4) -#define SPI_OPM_RX_QIOF (1 << 5) -#define SPI_OPM_RX_EXTN (SPI_OPM_RX_AS | SPI_OPM_RX_AF | SPI_OPM_RX_DOUT | \ - SPI_OPM_RX_DIO | SPI_OPM_RX_QOF | \ - SPI_OPM_RX_QIOF) +#define SPI_CPHA BIT(0) /* clock phase */ +#define SPI_CPOL BIT(1) /* clock polarity */ +#define SPI_MODE_0 (0|0) /* (original MicroWire) */ +#define SPI_MODE_1 (0|SPI_CPHA) +#define SPI_MODE_2 (SPI_CPOL|0) +#define SPI_MODE_3 (SPI_CPOL|SPI_CPHA) +#define SPI_CS_HIGH BIT(2) /* CS active high */ +#define SPI_LSB_FIRST BIT(3) /* per-word bits-on-wire */ +#define SPI_3WIRE BIT(4) /* SI/SO signals shared */ +#define SPI_LOOP BIT(5) /* loopback mode */ +#define SPI_SLAVE BIT(6) /* slave mode */ +#define SPI_PREAMBLE BIT(7) /* Skip preamble bytes */ +#define SPI_TX_BYTE BIT(8) /* transmit with 1 wire byte */ +#define SPI_TX_DUAL BIT(9) /* transmit with 2 wires */ +#define SPI_TX_QUAD BIT(10) /* transmit with 4 wires */ + +/* SPI mode_rx flags */ +#define SPI_RX_SLOW BIT(0) /* receive with 1 wire slow */ +#define SPI_RX_FAST BIT(1) /* receive with 1 wire fast */ +#define SPI_RX_DUAL BIT(2) /* receive with 2 wires */ +#define SPI_RX_QUAD BIT(3) /* receive with 4 wires */ /* SPI bus connection options - see enum spi_dual_flash */ #define SPI_CONN_DUAL_SHARED (1 << 0) @@ -75,11 +61,13 @@ struct dm_spi_bus { * @cs: Chip select number (0..n-1) * @max_hz: Maximum bus speed that this slave can tolerate * @mode: SPI mode to use for this device (see SPI mode flags) + * @mode_rx: SPI RX mode to use for this slave (see SPI mode_rx flags) */ struct dm_spi_slave_platdata { unsigned int cs; uint max_hz; uint mode; + u8 mode_rx; }; #endif /* CONFIG_DM_SPI */ @@ -99,15 +87,14 @@ struct dm_spi_slave_platdata { * * @dev: SPI slave device * @max_hz: Maximum speed for this slave - * @mode: SPI mode to use for this slave (see SPI mode flags) * @speed: Current bus speed. This is 0 until the bus is first * claimed. * @bus: ID of the bus that the slave is attached to. For * driver model this is the sequence number of the SPI * bus (bus->seq) so does not need to be stored * @cs: ID of the chip select connected to the slave. - * @op_mode_rx: SPI RX operation mode. - * @op_mode_tx: SPI TX operation mode. + * @mode: SPI mode to use for this slave (see SPI mode flags) + * @mode_rx: SPI RX mode to use for this slave (see SPI mode_rx flags) * @wordlen: Size of SPI word in number of bits * @max_write_size: If non-zero, the maximum number of bytes which can * be written at once, excluding command bytes. @@ -120,18 +107,24 @@ struct spi_slave { struct udevice *dev; /* struct spi_slave is dev->parentdata */ uint max_hz; uint speed; - uint mode; #else unsigned int bus; unsigned int cs; #endif - u8 op_mode_rx; - u8 op_mode_tx; + uint mode; + u8 mode_rx; unsigned int wordlen; unsigned int max_write_size; void *memory_map; u8 option; + u8 flags; +#define SPI_XFER_BEGIN BIT(0) /* Assert CS before transfer */ +#define SPI_XFER_END BIT(1) /* Deassert CS after transfer */ +#define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END) +#define SPI_XFER_MMAP BIT(2) /* Memory Mapped start */ +#define SPI_XFER_MMAP_END BIT(3) /* Memory Mapped End */ +#define SPI_XFER_U_PAGE BIT(4) }; /** |