summaryrefslogtreecommitdiff
path: root/include/asm-blackfin/mach-common/bits/uart.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-blackfin/mach-common/bits/uart.h')
-rw-r--r--include/asm-blackfin/mach-common/bits/uart.h98
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