include/linux/amba/serial.h - barebox/mindspeed - Git at Google

 /*
  *  linux/include/linux/amba/serial.h
  *
  *  Internal header file for AMBA serial ports
  *
  *  Copyright (C) ARM Limited
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
 #define ASM_ARM_HARDWARE_SERIAL_AMBA_H

 /* -------------------------------------------------------------------------------
  *  From AMBA UART (PL010) Block Specification
  * -------------------------------------------------------------------------------
  *  UART Register Offsets.
  */
 #define UART01x_DR		0x00	/* Data read or written from the interface. */
 #define UART01x_RSR		0x04	/* Receive status register (Read). */
 #define UART01x_ECR		0x04	/* Error clear register (Write). */
 #define UART010_LCRH		0x08	/* Line control register, high byte. */
 #define UART010_LCRM		0x0C	/* Line control register, middle byte. */
 #define UART010_LCRL		0x10	/* Line control register, low byte. */
 #define UART010_CR		0x14	/* Control register. */
 #define UART01x_FR		0x18	/* Flag register (Read only). */
 #define UART010_IIR		0x1C	/* Interrupt indentification register (Read). */
 #define UART010_ICR		0x1C	/* Interrupt clear register (Write). */
 #define UART01x_ILPR		0x20	/* IrDA low power counter register. */
 #define UART011_IBRD		0x24	/* Integer baud rate divisor register. */
 #define UART011_FBRD		0x28	/* Fractional baud rate divisor register. */
 #define UART011_LCRH		0x2c	/* Line control register. */
 #define UART011_CR		0x30	/* Control register. */
 #define UART011_IFLS		0x34	/* Interrupt fifo level select. */
 #define UART011_IMSC		0x38	/* Interrupt mask. */
 #define UART011_RIS		0x3c	/* Raw interrupt status. */
 #define UART011_MIS		0x40	/* Masked interrupt status. */
 #define UART011_ICR		0x44	/* Interrupt clear register. */
 #define UART011_DMACR		0x48	/* DMA control register. */

 #define UART011_DR_OE		(1 << 11)
 #define UART011_DR_BE		(1 << 10)
 #define UART011_DR_PE		(1 << 9)
 #define UART011_DR_FE		(1 << 8)

 #define UART01x_RSR_OE		0x08
 #define UART01x_RSR_BE		0x04
 #define UART01x_RSR_PE		0x02
 #define UART01x_RSR_FE		0x01

 #define UART011_FR_RI		0x100
 #define UART011_FR_TXFE		0x080
 #define UART011_FR_RXFF		0x040
 #define UART01x_FR_TXFF		0x020
 #define UART01x_FR_RXFE		0x010
 #define UART01x_FR_BUSY		0x008
 #define UART01x_FR_DCD		0x004
 #define UART01x_FR_DSR		0x002
 #define UART01x_FR_CTS		0x001
 #define UART01x_FR_TMSK		(UART01x_FR_TXFF + UART01x_FR_BUSY)

 #define UART011_CR_CTSEN	0x8000	/* CTS hardware flow control */
 #define UART011_CR_RTSEN	0x4000	/* RTS hardware flow control */
 #define UART011_CR_OUT2		0x2000	/* OUT2 */
 #define UART011_CR_OUT1		0x1000	/* OUT1 */
 #define UART011_CR_RTS		0x0800	/* RTS */
 #define UART011_CR_DTR		0x0400	/* DTR */
 #define UART011_CR_RXE		0x0200	/* receive enable */
 #define UART011_CR_TXE		0x0100	/* transmit enable */
 #define UART011_CR_LBE		0x0080	/* loopback enable */
 #define UART010_CR_RTIE		0x0040
 #define UART010_CR_TIE		0x0020
 #define UART010_CR_RIE		0x0010
 #define UART010_CR_MSIE		0x0008
 #define UART01x_CR_IIRLP	0x0004	/* SIR low power mode */
 #define UART01x_CR_SIREN	0x0002	/* SIR enable */
 #define UART01x_CR_UARTEN	0x0001	/* UART enable */

 #define UART011_LCRH_SPS	0x80
 #define UART01x_LCRH_WLEN_8	0x60
 #define UART01x_LCRH_WLEN_7	0x40
 #define UART01x_LCRH_WLEN_6	0x20
 #define UART01x_LCRH_WLEN_5	0x00
 #define UART01x_LCRH_FEN	0x10
 #define UART01x_LCRH_STP2	0x08
 #define UART01x_LCRH_EPS	0x04
 #define UART01x_LCRH_PEN	0x02
 #define UART01x_LCRH_BRK	0x01

 #define UART010_IIR_RTIS	0x08
 #define UART010_IIR_TIS		0x04
 #define UART010_IIR_RIS		0x02
 #define UART010_IIR_MIS		0x01

 #define UART011_IFLS_RX1_8	(0 << 3)
 #define UART011_IFLS_RX2_8	(1 << 3)
 #define UART011_IFLS_RX4_8	(2 << 3)
 #define UART011_IFLS_RX6_8	(3 << 3)
 #define UART011_IFLS_RX7_8	(4 << 3)
 #define UART011_IFLS_TX1_8	(0 << 0)
 #define UART011_IFLS_TX2_8	(1 << 0)
 #define UART011_IFLS_TX4_8	(2 << 0)
 #define UART011_IFLS_TX6_8	(3 << 0)
 #define UART011_IFLS_TX7_8	(4 << 0)
 /* special values for ST vendor with deeper fifo */
 #define UART011_IFLS_RX_HALF	(5 << 3)
 #define UART011_IFLS_TX_HALF	(5 << 0)

 #define UART011_OEIM		(1 << 10)	/* overrun error interrupt mask */
 #define UART011_BEIM		(1 << 9)	/* break error interrupt mask */
 #define UART011_PEIM		(1 << 8)	/* parity error interrupt mask */
 #define UART011_FEIM		(1 << 7)	/* framing error interrupt mask */
 #define UART011_RTIM		(1 << 6)	/* receive timeout interrupt mask */
 #define UART011_TXIM		(1 << 5)	/* transmit interrupt mask */
 #define UART011_RXIM		(1 << 4)	/* receive interrupt mask */
 #define UART011_DSRMIM		(1 << 3)	/* DSR interrupt mask */
 #define UART011_DCDMIM		(1 << 2)	/* DCD interrupt mask */
 #define UART011_CTSMIM		(1 << 1)	/* CTS interrupt mask */
 #define UART011_RIMIM		(1 << 0)	/* RI interrupt mask */

 #define UART011_OEIS		(1 << 10)	/* overrun error interrupt status */
 #define UART011_BEIS		(1 << 9)	/* break error interrupt status */
 #define UART011_PEIS		(1 << 8)	/* parity error interrupt status */
 #define UART011_FEIS		(1 << 7)	/* framing error interrupt status */
 #define UART011_RTIS		(1 << 6)	/* receive timeout interrupt status */
 #define UART011_TXIS		(1 << 5)	/* transmit interrupt status */
 #define UART011_RXIS		(1 << 4)	/* receive interrupt status */
 #define UART011_DSRMIS		(1 << 3)	/* DSR interrupt status */
 #define UART011_DCDMIS		(1 << 2)	/* DCD interrupt status */
 #define UART011_CTSMIS		(1 << 1)	/* CTS interrupt status */
 #define UART011_RIMIS		(1 << 0)	/* RI interrupt status */

 #define UART011_OEIC		(1 << 10)	/* overrun error interrupt clear */
 #define UART011_BEIC		(1 << 9)	/* break error interrupt clear */
 #define UART011_PEIC		(1 << 8)	/* parity error interrupt clear */
 #define UART011_FEIC		(1 << 7)	/* framing error interrupt clear */
 #define UART011_RTIC		(1 << 6)	/* receive timeout interrupt clear */
 #define UART011_TXIC		(1 << 5)	/* transmit interrupt clear */
 #define UART011_RXIC		(1 << 4)	/* receive interrupt clear */
 #define UART011_DSRMIC		(1 << 3)	/* DSR interrupt clear */
 #define UART011_DCDMIC		(1 << 2)	/* DCD interrupt clear */
 #define UART011_CTSMIC		(1 << 1)	/* CTS interrupt clear */
 #define UART011_RIMIC		(1 << 0)	/* RI interrupt clear */

 #define UART011_DMAONERR	(1 << 2)	/* disable dma on error */
 #define UART011_TXDMAE		(1 << 1)	/* enable transmit dma */
 #define UART011_RXDMAE		(1 << 0)	/* enable receive dma */

 #define UART01x_RSR_ANY		(UART01x_RSR_OE|UART01x_RSR_BE|UART01x_RSR_PE|UART01x_RSR_FE)
 #define UART01x_FR_MODEM_ANY	(UART01x_FR_DCD|UART01x_FR_DSR|UART01x_FR_CTS)

 #endif
	/*
	* linux/include/linux/amba/serial.h
	*
	* Internal header file for AMBA serial ports
	*
	* Copyright (C) ARM Limited
	* Copyright (C) 2000 Deep Blue Solutions Ltd.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/
	#ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
	#define ASM_ARM_HARDWARE_SERIAL_AMBA_H

	/* -------------------------------------------------------------------------------
	* From AMBA UART (PL010) Block Specification
	* -------------------------------------------------------------------------------
	* UART Register Offsets.
	*/
	#define UART01x_DR 0x00 /* Data read or written from the interface. */
	#define UART01x_RSR 0x04 /* Receive status register (Read). */
	#define UART01x_ECR 0x04 /* Error clear register (Write). */
	#define UART010_LCRH 0x08 /* Line control register, high byte. */
	#define UART010_LCRM 0x0C /* Line control register, middle byte. */
	#define UART010_LCRL 0x10 /* Line control register, low byte. */
	#define UART010_CR 0x14 /* Control register. */
	#define UART01x_FR 0x18 /* Flag register (Read only). */
	#define UART010_IIR 0x1C /* Interrupt indentification register (Read). */
	#define UART010_ICR 0x1C /* Interrupt clear register (Write). */
	#define UART01x_ILPR 0x20 /* IrDA low power counter register. */
	#define UART011_IBRD 0x24 /* Integer baud rate divisor register. */
	#define UART011_FBRD 0x28 /* Fractional baud rate divisor register. */
	#define UART011_LCRH 0x2c /* Line control register. */
	#define UART011_CR 0x30 /* Control register. */
	#define UART011_IFLS 0x34 /* Interrupt fifo level select. */
	#define UART011_IMSC 0x38 /* Interrupt mask. */
	#define UART011_RIS 0x3c /* Raw interrupt status. */
	#define UART011_MIS 0x40 /* Masked interrupt status. */
	#define UART011_ICR 0x44 /* Interrupt clear register. */
	#define UART011_DMACR 0x48 /* DMA control register. */

	#define UART011_DR_OE (1 << 11)
	#define UART011_DR_BE (1 << 10)
	#define UART011_DR_PE (1 << 9)
	#define UART011_DR_FE (1 << 8)

	#define UART01x_RSR_OE 0x08
	#define UART01x_RSR_BE 0x04
	#define UART01x_RSR_PE 0x02
	#define UART01x_RSR_FE 0x01

	#define UART011_FR_RI 0x100
	#define UART011_FR_TXFE 0x080
	#define UART011_FR_RXFF 0x040
	#define UART01x_FR_TXFF 0x020
	#define UART01x_FR_RXFE 0x010
	#define UART01x_FR_BUSY 0x008
	#define UART01x_FR_DCD 0x004
	#define UART01x_FR_DSR 0x002
	#define UART01x_FR_CTS 0x001
	#define UART01x_FR_TMSK (UART01x_FR_TXFF + UART01x_FR_BUSY)

	#define UART011_CR_CTSEN 0x8000 /* CTS hardware flow control */
	#define UART011_CR_RTSEN 0x4000 /* RTS hardware flow control */
	#define UART011_CR_OUT2 0x2000 /* OUT2 */
	#define UART011_CR_OUT1 0x1000 /* OUT1 */
	#define UART011_CR_RTS 0x0800 /* RTS */
	#define UART011_CR_DTR 0x0400 /* DTR */
	#define UART011_CR_RXE 0x0200 /* receive enable */
	#define UART011_CR_TXE 0x0100 /* transmit enable */
	#define UART011_CR_LBE 0x0080 /* loopback enable */
	#define UART010_CR_RTIE 0x0040
	#define UART010_CR_TIE 0x0020
	#define UART010_CR_RIE 0x0010
	#define UART010_CR_MSIE 0x0008
	#define UART01x_CR_IIRLP 0x0004 /* SIR low power mode */
	#define UART01x_CR_SIREN 0x0002 /* SIR enable */
	#define UART01x_CR_UARTEN 0x0001 /* UART enable */

	#define UART011_LCRH_SPS 0x80
	#define UART01x_LCRH_WLEN_8 0x60
	#define UART01x_LCRH_WLEN_7 0x40
	#define UART01x_LCRH_WLEN_6 0x20
	#define UART01x_LCRH_WLEN_5 0x00
	#define UART01x_LCRH_FEN 0x10
	#define UART01x_LCRH_STP2 0x08
	#define UART01x_LCRH_EPS 0x04
	#define UART01x_LCRH_PEN 0x02
	#define UART01x_LCRH_BRK 0x01

	#define UART010_IIR_RTIS 0x08
	#define UART010_IIR_TIS 0x04
	#define UART010_IIR_RIS 0x02
	#define UART010_IIR_MIS 0x01

	#define UART011_IFLS_RX1_8 (0 << 3)
	#define UART011_IFLS_RX2_8 (1 << 3)
	#define UART011_IFLS_RX4_8 (2 << 3)
	#define UART011_IFLS_RX6_8 (3 << 3)
	#define UART011_IFLS_RX7_8 (4 << 3)
	#define UART011_IFLS_TX1_8 (0 << 0)
	#define UART011_IFLS_TX2_8 (1 << 0)
	#define UART011_IFLS_TX4_8 (2 << 0)
	#define UART011_IFLS_TX6_8 (3 << 0)
	#define UART011_IFLS_TX7_8 (4 << 0)
	/* special values for ST vendor with deeper fifo */
	#define UART011_IFLS_RX_HALF (5 << 3)
	#define UART011_IFLS_TX_HALF (5 << 0)

	#define UART011_OEIM (1 << 10) /* overrun error interrupt mask */
	#define UART011_BEIM (1 << 9) /* break error interrupt mask */
	#define UART011_PEIM (1 << 8) /* parity error interrupt mask */
	#define UART011_FEIM (1 << 7) /* framing error interrupt mask */
	#define UART011_RTIM (1 << 6) /* receive timeout interrupt mask */
	#define UART011_TXIM (1 << 5) /* transmit interrupt mask */
	#define UART011_RXIM (1 << 4) /* receive interrupt mask */
	#define UART011_DSRMIM (1 << 3) /* DSR interrupt mask */
	#define UART011_DCDMIM (1 << 2) /* DCD interrupt mask */
	#define UART011_CTSMIM (1 << 1) /* CTS interrupt mask */
	#define UART011_RIMIM (1 << 0) /* RI interrupt mask */

	#define UART011_OEIS (1 << 10) /* overrun error interrupt status */
	#define UART011_BEIS (1 << 9) /* break error interrupt status */
	#define UART011_PEIS (1 << 8) /* parity error interrupt status */
	#define UART011_FEIS (1 << 7) /* framing error interrupt status */
	#define UART011_RTIS (1 << 6) /* receive timeout interrupt status */
	#define UART011_TXIS (1 << 5) /* transmit interrupt status */
	#define UART011_RXIS (1 << 4) /* receive interrupt status */
	#define UART011_DSRMIS (1 << 3) /* DSR interrupt status */
	#define UART011_DCDMIS (1 << 2) /* DCD interrupt status */
	#define UART011_CTSMIS (1 << 1) /* CTS interrupt status */
	#define UART011_RIMIS (1 << 0) /* RI interrupt status */

	#define UART011_OEIC (1 << 10) /* overrun error interrupt clear */
	#define UART011_BEIC (1 << 9) /* break error interrupt clear */
	#define UART011_PEIC (1 << 8) /* parity error interrupt clear */
	#define UART011_FEIC (1 << 7) /* framing error interrupt clear */
	#define UART011_RTIC (1 << 6) /* receive timeout interrupt clear */
	#define UART011_TXIC (1 << 5) /* transmit interrupt clear */
	#define UART011_RXIC (1 << 4) /* receive interrupt clear */
	#define UART011_DSRMIC (1 << 3) /* DSR interrupt clear */
	#define UART011_DCDMIC (1 << 2) /* DCD interrupt clear */
	#define UART011_CTSMIC (1 << 1) /* CTS interrupt clear */
	#define UART011_RIMIC (1 << 0) /* RI interrupt clear */

	#define UART011_DMAONERR (1 << 2) /* disable dma on error */
	#define UART011_TXDMAE (1 << 1) /* enable transmit dma */
	#define UART011_RXDMAE (1 << 0) /* enable receive dma */

	#define UART01x_RSR_ANY (UART01x_RSR_OE\|UART01x_RSR_BE\|UART01x_RSR_PE\|UART01x_RSR_FE)
	#define UART01x_FR_MODEM_ANY (UART01x_FR_DCD\|UART01x_FR_DSR\|UART01x_FR_CTS)

	#endif