diff options
Diffstat (limited to 'arch/blackfin/include/asm/mach-common/bits/uart.h')
| -rw-r--r-- | arch/blackfin/include/asm/mach-common/bits/uart.h | 98 | 
1 files changed, 98 insertions, 0 deletions
| diff --git a/arch/blackfin/include/asm/mach-common/bits/uart.h b/arch/blackfin/include/asm/mach-common/bits/uart.h new file mode 100644 index 000000000..ac1ba11f5 --- /dev/null +++ b/arch/blackfin/include/asm/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 |