diff options
Diffstat (limited to 'include/asm-blackfin/mach-common/bits/uart.h')
-rw-r--r-- | include/asm-blackfin/mach-common/bits/uart.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/asm-blackfin/mach-common/bits/uart.h b/include/asm-blackfin/mach-common/bits/uart.h new file mode 100644 index 0000000000..ac1ba11f5a --- /dev/null +++ b/include/asm-blackfin/mach-common/bits/uart.h @@ -0,0 +1,98 @@ +/* + * UART Masks + */ + +#ifndef __BFIN_PERIPHERAL_UART__ +#define __BFIN_PERIPHERAL_UART__ + +/* UARTx_LCR Masks */ +#define WLS 0x03 /* Word Length Select */ +#define WLS_5 0x00 /* 5 bit word */ +#define WLS_6 0x01 /* 6 bit word */ +#define WLS_7 0x02 /* 7 bit word */ +#define WLS_8 0x03 /* 8 bit word */ +#define STB 0x04 /* Stop Bits */ +#define PEN 0x08 /* Parity Enable */ +#define EPS 0x10 /* Even Parity Select */ +#define STP 0x20 /* Stick Parity */ +#define SB 0x40 /* Set Break */ +#define DLAB 0x80 /* Divisor Latch Access */ + +#define DLAB_P 0x07 +#define SB_P 0x06 +#define STP_P 0x05 +#define EPS_P 0x04 +#define PEN_P 0x03 +#define STB_P 0x02 +#define WLS_P1 0x01 +#define WLS_P0 0x00 + +/* UARTx_MCR Mask */ +#define XOFF 0x01 /* Transmitter off */ +#define MRTS 0x02 /* Manual Request to Send */ +#define RFIT 0x04 /* Receive FIFO IRQ Threshold */ +#define RFRT 0x08 /* Receive FIFO RTS Threshold */ +#define LOOP_ENA 0x10 /* Loopback Mode Enable */ +#define FCPOL 0x20 /* Flow Control Pin Polarity */ +#define ARTS 0x40 /* Auto RTS generation for RX handshake */ +#define ACTS 0x80 /* Auto CTS operation for TX handshake */ + +#define XOFF_P 0 +#define MRTS_P 1 +#define RFIT_P 2 +#define RFRT_P 3 +#define LOOP_ENA_P 4 +#define FCPOL_P 5 +#define ARTS_P 6 +#define ACTS_P 7 + +/* UARTx_LSR Masks */ +#define DR 0x01 /* Data Ready */ +#define OE 0x02 /* Overrun Error */ +#define PE 0x04 /* Parity Error */ +#define FE 0x08 /* Framing Error */ +#define BI 0x10 /* Break Interrupt */ +#define THRE 0x20 /* THR Empty */ +#define TEMT 0x40 /* TSR and UART_THR Empty */ + +#define DR_P 0x00 +#define OE_P 0x01 +#define PE_P 0x02 +#define FE_P 0x03 +#define BI_P 0x04 +#define THRE_P 0x05 +#define TEMT_P 0x06 + +/* UARTx_IER Masks */ +#define ERBFI 0x01 /* Enable Receive Buffer Full Interrupt */ +#define ETBEI 0x02 /* Enable Transmit Buffer Empty Interrupt */ +#define ELSI 0x04 /* Enable RX Status Interrupt */ + +#define ERBFI_P 0x00 +#define ETBEI_P 0x01 +#define ELSI_P 0x02 + +/* UARTx_IIR Masks */ +#define NINT 0x01 /* Pending Interrupt */ +#define STATUS 0x06 /* Highest Priority Pending Interrupt */ + +#define NINT_P 0x00 +#define STATUS_P0 0x01 +#define STATUS_P1 0x02 + +/* UARTx_GCTL Masks */ +#define UCEN 0x01 /* Enable UARTx Clocks */ +#define IREN 0x02 /* Enable IrDA Mode */ +#define TPOLC 0x04 /* IrDA TX Polarity Change */ +#define RPOLC 0x08 /* IrDA RX Polarity Change */ +#define FPE 0x10 /* Force Parity Error On Transmit */ +#define FFE 0x20 /* Force Framing Error On Transmit */ + +#define UCEN_P 0x00 +#define IREN_P 0x01 +#define TPOLC_P 0x02 +#define RPOLC_P 0x03 +#define FPE_P 0x04 +#define FFE_P 0x05 + +#endif |