diff options
Diffstat (limited to 'arch/blackfin/include/asm/mach-common/bits/spi.h')
| -rw-r--r-- | arch/blackfin/include/asm/mach-common/bits/spi.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/mach-common/bits/spi.h b/arch/blackfin/include/asm/mach-common/bits/spi.h new file mode 100644 index 0000000000..869dcb08f5 --- /dev/null +++ b/arch/blackfin/include/asm/mach-common/bits/spi.h @@ -0,0 +1,67 @@ +/* + * SPI Masks + */ + +#ifndef __BFIN_PERIPHERAL_SPI__ +#define __BFIN_PERIPHERAL_SPI__ + +/* SPI_CTL Masks */ +#define TIMOD 0x0003 /* Transfer Initiate Mode */ +#define RDBR_CORE 0x0000 /* RDBR Read Initiates, IRQ When RDBR Full */ +#define TDBR_CORE 0x0001 /* TDBR Write Initiates, IRQ When TDBR Empty */ +#define RDBR_DMA 0x0002 /* DMA Read, DMA Until FIFO Empty */ +#define TDBR_DMA 0x0003 /* DMA Write, DMA Until FIFO Full */ +#define SZ 0x0004 /* Send Zero (When TDBR Empty, Send Zero/Last*) */ +#define GM 0x0008 /* Get More (When RDBR Full, Overwrite/Discard*) */ +#define PSSE 0x0010 /* Slave-Select Input Enable */ +#define EMISO 0x0020 /* Enable MISO As Output */ +#define SIZE 0x0100 /* Size of Words (16/8* Bits) */ +#define LSBF 0x0200 /* LSB First */ +#define CPHA 0x0400 /* Clock Phase */ +#define CPOL 0x0800 /* Clock Polarity */ +#define MSTR 0x1000 /* Master/Slave* */ +#define WOM 0x2000 /* Write Open Drain Master */ +#define SPE 0x4000 /* SPI Enable */ + +/* SPI_FLG Masks */ +#define FLS1 0x0002 /* Enables (=1) SPI_FLOUT1 as flag output for SPI Slave-select */ +#define FLS2 0x0004 /* Enables (=1) SPI_FLOUT2 as flag output for SPI Slave-select */ +#define FLS3 0x0008 /* Enables (=1) SPI_FLOUT3 as flag output for SPI Slave-select */ +#define FLS4 0x0010 /* Enables (=1) SPI_FLOUT4 as flag output for SPI Slave-select */ +#define FLS5 0x0020 /* Enables (=1) SPI_FLOUT5 as flag output for SPI Slave-select */ +#define FLS6 0x0040 /* Enables (=1) SPI_FLOUT6 as flag output for SPI Slave-select */ +#define FLS7 0x0080 /* Enables (=1) SPI_FLOUT7 as flag output for SPI Slave-select */ +#define FLG1 0x0200 /* Activates (=0) SPI_FLOUT1 as flag output for SPI Slave-select */ +#define FLG2 0x0400 /* Activates (=0) SPI_FLOUT2 as flag output for SPI Slave-select */ +#define FLG3 0x0800 /* Activates (=0) SPI_FLOUT3 as flag output for SPI Slave-select */ +#define FLG4 0x1000 /* Activates (=0) SPI_FLOUT4 as flag output for SPI Slave-select */ +#define FLG5 0x2000 /* Activates (=0) SPI_FLOUT5 as flag output for SPI Slave-select */ +#define FLG6 0x4000 /* Activates (=0) SPI_FLOUT6 as flag output for SPI Slave-select */ +#define FLG7 0x8000 /* Activates (=0) SPI_FLOUT7 as flag output for SPI Slave-select */ + +/* SPI_FLG Bit Positions */ +#define FLS1_P 0x0001 /* Enables (=1) SPI_FLOUT1 as flag output for SPI Slave-select */ +#define FLS2_P 0x0002 /* Enables (=1) SPI_FLOUT2 as flag output for SPI Slave-select */ +#define FLS3_P 0x0003 /* Enables (=1) SPI_FLOUT3 as flag output for SPI Slave-select */ +#define FLS4_P 0x0004 /* Enables (=1) SPI_FLOUT4 as flag output for SPI Slave-select */ +#define FLS5_P 0x0005 /* Enables (=1) SPI_FLOUT5 as flag output for SPI Slave-select */ +#define FLS6_P 0x0006 /* Enables (=1) SPI_FLOUT6 as flag output for SPI Slave-select */ +#define FLS7_P 0x0007 /* Enables (=1) SPI_FLOUT7 as flag output for SPI Slave-select */ +#define FLG1_P 0x0009 /* Activates (=0) SPI_FLOUT1 as flag output for SPI Slave-select */ +#define FLG2_P 0x000A /* Activates (=0) SPI_FLOUT2 as flag output for SPI Slave-select */ +#define FLG3_P 0x000B /* Activates (=0) SPI_FLOUT3 as flag output for SPI Slave-select */ +#define FLG4_P 0x000C /* Activates (=0) SPI_FLOUT4 as flag output for SPI Slave-select */ +#define FLG5_P 0x000D /* Activates (=0) SPI_FLOUT5 as flag output for SPI Slave-select */ +#define FLG6_P 0x000E /* Activates (=0) SPI_FLOUT6 as flag output for SPI Slave-select */ +#define FLG7_P 0x000F /* Activates (=0) SPI_FLOUT7 as flag output for SPI Slave-select */ + +/* SPI_STAT Masks */ +#define SPIF 0x0001 /* SPI Finished (Single-Word Transfer Complete) */ +#define MODF 0x0002 /* Mode Fault Error (Another Device Tried To Become Master) */ +#define TXE 0x0004 /* Transmission Error (Data Sent With No New Data In TDBR) */ +#define TXS 0x0008 /* SPI_TDBR Data Buffer Status (Full/Empty*) */ +#define RBSY 0x0010 /* Receive Error (Data Received With RDBR Full) */ +#define RXS 0x0020 /* SPI_RDBR Data Buffer Status (Full/Empty*) */ +#define TXCOL 0x0040 /* Transmit Collision Error (Corrupt Data May Have Been Sent) */ + +#endif |