93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/*
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* linux/include/asm-arm/arch-ks8695/regs-uart.h
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*
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* Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
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* Copyright (C) 2006 Simtec Electronics
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*
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* KS8695 - UART register and bit definitions.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef KS8695_UART_H
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#define KS8695_UART_H
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#define KS8695_UART_OFFSET (0xF0000 + 0xE000)
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#define KS8695_UART_VA (KS8695_IO_VA + KS8695_UART_OFFSET)
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#define KS8695_UART_PA (KS8695_IO_PA + KS8695_UART_OFFSET)
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/*
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* UART registers
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*/
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#define KS8695_URRB (0x00) /* Receive Buffer Register */
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#define KS8695_URTH (0x04) /* Transmit Holding Register */
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#define KS8695_URFC (0x08) /* FIFO Control Register */
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#define KS8695_URLC (0x0C) /* Line Control Register */
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#define KS8695_URMC (0x10) /* Modem Control Register */
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#define KS8695_URLS (0x14) /* Line Status Register */
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#define KS8695_URMS (0x18) /* Modem Status Register */
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#define KS8695_URBD (0x1C) /* Baud Rate Divisor Register */
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#define KS8695_USR (0x20) /* Status Register */
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/* FIFO Control Register */
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#define URFC_URFRT (3 << 6) /* Receive FIFO Trigger Level */
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#define URFC_URFRT_1 (0 << 6)
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#define URFC_URFRT_4 (1 << 6)
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#define URFC_URFRT_8 (2 << 6)
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#define URFC_URFRT_14 (3 << 6)
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#define URFC_URTFR (1 << 2) /* Transmit FIFO Reset */
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#define URFC_URRFR (1 << 1) /* Receive FIFO Reset */
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#define URFC_URFE (1 << 0) /* FIFO Enable */
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/* Line Control Register */
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#define URLC_URSBC (1 << 6) /* Set Break Condition */
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#define URLC_PARITY (7 << 3) /* Parity */
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#define URPE_NONE (0 << 3)
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#define URPE_ODD (1 << 3)
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#define URPE_EVEN (3 << 3)
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#define URPE_MARK (5 << 3)
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#define URPE_SPACE (7 << 3)
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#define URLC_URSB (1 << 2) /* Stop Bits */
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#define URLC_URCL (3 << 0) /* Character Length */
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#define URCL_5 (0 << 0)
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#define URCL_6 (1 << 0)
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#define URCL_7 (2 << 0)
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#define URCL_8 (3 << 0)
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/* Modem Control Register */
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#define URMC_URLB (1 << 4) /* Loop-back mode */
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#define URMC_UROUT2 (1 << 3) /* OUT2 signal */
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#define URMC_UROUT1 (1 << 2) /* OUT1 signal */
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#define URMC_URRTS (1 << 1) /* Request to Send */
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#define URMC_URDTR (1 << 0) /* Data Terminal Ready */
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/* Line Status Register */
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#define URLS_URRFE (1 << 7) /* Receive FIFO Error */
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#define URLS_URTE (1 << 6) /* Transmit Empty */
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#define URLS_URTHRE (1 << 5) /* Transmit Holding Register Empty */
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#define URLS_URBI (1 << 4) /* Break Interrupt */
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#define URLS_URFE (1 << 3) /* Framing Error */
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#define URLS_URPE (1 << 2) /* Parity Error */
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#define URLS_URROE (1 << 1) /* Receive Overrun Error */
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#define URLS_URDR (1 << 0) /* Receive Data Ready */
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/* Modem Status Register */
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#define URMS_URDCD (1 << 7) /* Data Carrier Detect */
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#define URMS_URRI (1 << 6) /* Ring Indicator */
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#define URMS_URDSR (1 << 5) /* Data Set Ready */
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#define URMS_URCTS (1 << 4) /* Clear to Send */
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#define URMS_URDDCD (1 << 3) /* Delta Data Carrier Detect */
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#define URMS_URTERI (1 << 2) /* Trailing Edge Ring Indicator */
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#define URMS_URDDST (1 << 1) /* Delta Data Set Ready */
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#define URMS_URDCTS (1 << 0) /* Delta Clear to Send */
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/* Status Register */
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#define USR_UTI (1 << 0) /* Timeout Indication */
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#endif
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