include/linux/amba/serial.h - kernel/common - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  *  linux/include/asm-arm/hardware/serial_amba.h
  *
  *  Internal header file for AMBA serial ports
  *
  *  Copyright (C) ARM Limited
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
  */
 #ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
 #define ASM_ARM_HARDWARE_SERIAL_AMBA_H

 #ifndef __ASSEMBLY__
 #include <linux/bitfield.h>
 #include <linux/bits.h>
 #endif

 #include <linux/types.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 ST_UART011_DMAWM	0x08    /* DMA watermark configure register. */
 #define UART010_LCRM		0x0C	/* Line control register, middle byte. */
 #define ST_UART011_TIMEOUT	0x0C    /* Timeout period register. */
 #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 identification register (Read). */
 #define UART010_ICR		0x1C	/* Interrupt clear register (Write). */
 #define ST_UART011_LCRH_RX	0x1C    /* Rx line control register. */
 #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 ST_UART011_LCRH_TX	0x2c    /* Tx 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 ST_UART011_XFCR		0x50	/* XON/XOFF control register. */
 #define ST_UART011_XON1		0x54	/* XON1 register. */
 #define ST_UART011_XON2		0x58	/* XON2 register. */
 #define ST_UART011_XOFF1	0x5C	/* XON1 register. */
 #define ST_UART011_XOFF2	0x60	/* XON2 register. */
 #define ST_UART011_ITCR		0x80	/* Integration test control register. */
 #define ST_UART011_ITIP		0x84	/* Integration test input register. */
 #define ST_UART011_ABCR		0x100	/* Autobaud control register. */
 #define ST_UART011_ABIMSC	0x15C	/* Autobaud interrupt mask/clear register. */

 /*
  * ZTE UART register offsets.  This UART has a radically different address
  * allocation from the ARM and ST variants, so we list all registers here.
  * We assume unlisted registers do not exist.
  */
 #define ZX_UART011_DR		0x04
 #define ZX_UART011_FR		0x14
 #define ZX_UART011_IBRD		0x24
 #define ZX_UART011_FBRD		0x28
 #define ZX_UART011_LCRH		0x30
 #define ZX_UART011_CR		0x34
 #define ZX_UART011_IFLS		0x38
 #define ZX_UART011_IMSC		0x40
 #define ZX_UART011_RIS		0x44
 #define ZX_UART011_MIS		0x48
 #define ZX_UART011_ICR		0x4c
 #define ZX_UART011_DMACR	0x50

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

 #define UART01x_RSR_OE		BIT(3)
 #define UART01x_RSR_BE		BIT(2)
 #define UART01x_RSR_PE		BIT(1)
 #define UART01x_RSR_FE		BIT(0)

 #define UART011_FR_RI		BIT(8)
 #define UART011_FR_TXFE		BIT(7)
 #define UART011_FR_RXFF		BIT(6)
 #define UART01x_FR_TXFF		(1 << 5)	/* used in ASM */
 #define UART01x_FR_RXFE		BIT(4)
 #define UART01x_FR_BUSY		(1 << 3)	/* used in ASM */
 #define UART01x_FR_DCD		BIT(2)
 #define UART01x_FR_DSR		BIT(1)
 #define UART01x_FR_CTS		BIT(0)
 #define UART01x_FR_TMSK		(UART01x_FR_TXFF + UART01x_FR_BUSY)

 /*
  * Some bits of Flag Register on ZTE device have different position from
  * standard ones.
  */
 #define ZX_UART01x_FR_BUSY	BIT(8)
 #define ZX_UART01x_FR_DSR	BIT(3)
 #define ZX_UART01x_FR_CTS	BIT(1)
 #define ZX_UART011_FR_RI	BIT(0)

 #define UART011_CR_CTSEN	BIT(15)	/* CTS hardware flow control */
 #define UART011_CR_RTSEN	BIT(14)	/* RTS hardware flow control */
 #define UART011_CR_OUT2		BIT(13)	/* OUT2 */
 #define UART011_CR_OUT1		BIT(12)	/* OUT1 */
 #define UART011_CR_RTS		BIT(11)	/* RTS */
 #define UART011_CR_DTR		BIT(10)	/* DTR */
 #define UART011_CR_RXE		BIT(9)	/* receive enable */
 #define UART011_CR_TXE		BIT(8)	/* transmit enable */
 #define UART011_CR_LBE		BIT(7)	/* loopback enable */
 #define UART010_CR_RTIE		BIT(6)
 #define UART010_CR_TIE		BIT(5)
 #define UART010_CR_RIE		BIT(4)
 #define UART010_CR_MSIE		BIT(3)
 #define ST_UART011_CR_OVSFACT	BIT(3)	/* Oversampling factor */
 #define UART01x_CR_IIRLP	BIT(2)	/* SIR low power mode */
 #define UART01x_CR_SIREN	BIT(1)	/* SIR enable */
 #define UART01x_CR_UARTEN	BIT(0)	/* UART enable */

 #define UART011_LCRH_SPS	BIT(7)
 #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	BIT(4)
 #define UART01x_LCRH_STP2	BIT(3)
 #define UART01x_LCRH_EPS	BIT(2)
 #define UART01x_LCRH_PEN	BIT(1)
 #define UART01x_LCRH_BRK	BIT(0)

 #define ST_UART011_DMAWM_RX	GENMASK(5, 3)
 #define ST_UART011_DMAWM_RX_1	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 0)
 #define ST_UART011_DMAWM_RX_2	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 1)
 #define ST_UART011_DMAWM_RX_4	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 2)
 #define ST_UART011_DMAWM_RX_8	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 3)
 #define ST_UART011_DMAWM_RX_16	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 4)
 #define ST_UART011_DMAWM_RX_32	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 5)
 #define ST_UART011_DMAWM_RX_48	FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 6)
 #define ST_UART011_DMAWM_TX	GENMASK(2, 0)
 #define ST_UART011_DMAWM_TX_1	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 0)
 #define ST_UART011_DMAWM_TX_2	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 1)
 #define ST_UART011_DMAWM_TX_4	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 2)
 #define ST_UART011_DMAWM_TX_8	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 3)
 #define ST_UART011_DMAWM_TX_16	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 4)
 #define ST_UART011_DMAWM_TX_32	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 5)
 #define ST_UART011_DMAWM_TX_48	FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 6)

 #define UART010_IIR_RTIS	BIT(3)
 #define UART010_IIR_TIS		BIT(2)
 #define UART010_IIR_RIS		BIT(1)
 #define UART010_IIR_MIS		BIT(0)

 #define UART011_IFLS_RXIFLSEL	GENMASK(5, 3)
 #define UART011_IFLS_RX1_8	FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 0)
 #define UART011_IFLS_RX2_8	FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 1)
 #define UART011_IFLS_RX4_8	FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 2)
 #define UART011_IFLS_RX6_8	FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 3)
 #define UART011_IFLS_RX7_8	FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 4)
 #define UART011_IFLS_TXIFLSEL	GENMASK(2, 0)
 #define UART011_IFLS_TX1_8	FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 0)
 #define UART011_IFLS_TX2_8	FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 1)
 #define UART011_IFLS_TX4_8	FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 2)
 #define UART011_IFLS_TX6_8	FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 3)
 #define UART011_IFLS_TX7_8	FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 4)
 /* special values for ST vendor with deeper fifo */
 #define UART011_IFLS_RX_HALF	FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 5)
 #define UART011_IFLS_TX_HALF	FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 5)

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

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

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

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

 #ifndef __ASSEMBLY__
 struct amba_device; /* in uncompress this is included but amba/bus.h is not */
 struct amba_pl010_data {
 	void (*set_mctrl)(struct amba_device *dev, void __iomem *base, unsigned int mctrl);
 };

 struct dma_chan;
 struct amba_pl011_data {
 	bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
 	void *dma_rx_param;
 	void *dma_tx_param;
 	bool dma_rx_poll_enable;
 	unsigned int dma_rx_poll_rate;
 	unsigned int dma_rx_poll_timeout;
 	void (*init)(void);
 	void (*exit)(void);
 };
 #endif

 #endif
	/* SPDX-License-Identifier: GPL-2.0-or-later */
	/*
	* linux/include/asm-arm/hardware/serial_amba.h
	*
	* Internal header file for AMBA serial ports
	*
	* Copyright (C) ARM Limited
	* Copyright (C) 2000 Deep Blue Solutions Ltd.
	*/
	#ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
	#define ASM_ARM_HARDWARE_SERIAL_AMBA_H

	#ifndef __ASSEMBLY__
	#include <linux/bitfield.h>
	#include <linux/bits.h>
	#endif

	#include <linux/types.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 ST_UART011_DMAWM 0x08 /* DMA watermark configure register. */
	#define UART010_LCRM 0x0C /* Line control register, middle byte. */
	#define ST_UART011_TIMEOUT 0x0C /* Timeout period register. */
	#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 identification register (Read). */
	#define UART010_ICR 0x1C /* Interrupt clear register (Write). */
	#define ST_UART011_LCRH_RX 0x1C /* Rx line control register. */
	#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 ST_UART011_LCRH_TX 0x2c /* Tx 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 ST_UART011_XFCR 0x50 /* XON/XOFF control register. */
	#define ST_UART011_XON1 0x54 /* XON1 register. */
	#define ST_UART011_XON2 0x58 /* XON2 register. */
	#define ST_UART011_XOFF1 0x5C /* XON1 register. */
	#define ST_UART011_XOFF2 0x60 /* XON2 register. */
	#define ST_UART011_ITCR 0x80 /* Integration test control register. */
	#define ST_UART011_ITIP 0x84 /* Integration test input register. */
	#define ST_UART011_ABCR 0x100 /* Autobaud control register. */
	#define ST_UART011_ABIMSC 0x15C /* Autobaud interrupt mask/clear register. */

	/*
	* ZTE UART register offsets. This UART has a radically different address
	* allocation from the ARM and ST variants, so we list all registers here.
	* We assume unlisted registers do not exist.
	*/
	#define ZX_UART011_DR 0x04
	#define ZX_UART011_FR 0x14
	#define ZX_UART011_IBRD 0x24
	#define ZX_UART011_FBRD 0x28
	#define ZX_UART011_LCRH 0x30
	#define ZX_UART011_CR 0x34
	#define ZX_UART011_IFLS 0x38
	#define ZX_UART011_IMSC 0x40
	#define ZX_UART011_RIS 0x44
	#define ZX_UART011_MIS 0x48
	#define ZX_UART011_ICR 0x4c
	#define ZX_UART011_DMACR 0x50

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

	#define UART01x_RSR_OE BIT(3)
	#define UART01x_RSR_BE BIT(2)
	#define UART01x_RSR_PE BIT(1)
	#define UART01x_RSR_FE BIT(0)

	#define UART011_FR_RI BIT(8)
	#define UART011_FR_TXFE BIT(7)
	#define UART011_FR_RXFF BIT(6)
	#define UART01x_FR_TXFF (1 << 5) /* used in ASM */
	#define UART01x_FR_RXFE BIT(4)
	#define UART01x_FR_BUSY (1 << 3) /* used in ASM */
	#define UART01x_FR_DCD BIT(2)
	#define UART01x_FR_DSR BIT(1)
	#define UART01x_FR_CTS BIT(0)
	#define UART01x_FR_TMSK (UART01x_FR_TXFF + UART01x_FR_BUSY)

	/*
	* Some bits of Flag Register on ZTE device have different position from
	* standard ones.
	*/
	#define ZX_UART01x_FR_BUSY BIT(8)
	#define ZX_UART01x_FR_DSR BIT(3)
	#define ZX_UART01x_FR_CTS BIT(1)
	#define ZX_UART011_FR_RI BIT(0)

	#define UART011_CR_CTSEN BIT(15) /* CTS hardware flow control */
	#define UART011_CR_RTSEN BIT(14) /* RTS hardware flow control */
	#define UART011_CR_OUT2 BIT(13) /* OUT2 */
	#define UART011_CR_OUT1 BIT(12) /* OUT1 */
	#define UART011_CR_RTS BIT(11) /* RTS */
	#define UART011_CR_DTR BIT(10) /* DTR */
	#define UART011_CR_RXE BIT(9) /* receive enable */
	#define UART011_CR_TXE BIT(8) /* transmit enable */
	#define UART011_CR_LBE BIT(7) /* loopback enable */
	#define UART010_CR_RTIE BIT(6)
	#define UART010_CR_TIE BIT(5)
	#define UART010_CR_RIE BIT(4)
	#define UART010_CR_MSIE BIT(3)
	#define ST_UART011_CR_OVSFACT BIT(3) /* Oversampling factor */
	#define UART01x_CR_IIRLP BIT(2) /* SIR low power mode */
	#define UART01x_CR_SIREN BIT(1) /* SIR enable */
	#define UART01x_CR_UARTEN BIT(0) /* UART enable */

	#define UART011_LCRH_SPS BIT(7)
	#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 BIT(4)
	#define UART01x_LCRH_STP2 BIT(3)
	#define UART01x_LCRH_EPS BIT(2)
	#define UART01x_LCRH_PEN BIT(1)
	#define UART01x_LCRH_BRK BIT(0)

	#define ST_UART011_DMAWM_RX GENMASK(5, 3)
	#define ST_UART011_DMAWM_RX_1 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 0)
	#define ST_UART011_DMAWM_RX_2 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 1)
	#define ST_UART011_DMAWM_RX_4 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 2)
	#define ST_UART011_DMAWM_RX_8 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 3)
	#define ST_UART011_DMAWM_RX_16 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 4)
	#define ST_UART011_DMAWM_RX_32 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 5)
	#define ST_UART011_DMAWM_RX_48 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 6)
	#define ST_UART011_DMAWM_TX GENMASK(2, 0)
	#define ST_UART011_DMAWM_TX_1 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 0)
	#define ST_UART011_DMAWM_TX_2 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 1)
	#define ST_UART011_DMAWM_TX_4 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 2)
	#define ST_UART011_DMAWM_TX_8 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 3)
	#define ST_UART011_DMAWM_TX_16 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 4)
	#define ST_UART011_DMAWM_TX_32 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 5)
	#define ST_UART011_DMAWM_TX_48 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 6)

	#define UART010_IIR_RTIS BIT(3)
	#define UART010_IIR_TIS BIT(2)
	#define UART010_IIR_RIS BIT(1)
	#define UART010_IIR_MIS BIT(0)

	#define UART011_IFLS_RXIFLSEL GENMASK(5, 3)
	#define UART011_IFLS_RX1_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 0)
	#define UART011_IFLS_RX2_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 1)
	#define UART011_IFLS_RX4_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 2)
	#define UART011_IFLS_RX6_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 3)
	#define UART011_IFLS_RX7_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 4)
	#define UART011_IFLS_TXIFLSEL GENMASK(2, 0)
	#define UART011_IFLS_TX1_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 0)
	#define UART011_IFLS_TX2_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 1)
	#define UART011_IFLS_TX4_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 2)
	#define UART011_IFLS_TX6_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 3)
	#define UART011_IFLS_TX7_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 4)
	/* special values for ST vendor with deeper fifo */
	#define UART011_IFLS_RX_HALF FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 5)
	#define UART011_IFLS_TX_HALF FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 5)

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

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

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

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

	#ifndef __ASSEMBLY__
	struct amba_device; /* in uncompress this is included but amba/bus.h is not */
	struct amba_pl010_data {
	void (set_mctrl)(struct amba_device dev, void __iomem *base, unsigned int mctrl);
	};

	struct dma_chan;
	struct amba_pl011_data {
	bool (dma_filter)(struct dma_chan chan, void *filter_param);
	void *dma_rx_param;
	void *dma_tx_param;
	bool dma_rx_poll_enable;
	unsigned int dma_rx_poll_rate;
	unsigned int dma_rx_poll_timeout;
	void (*init)(void);
	void (*exit)(void);
	};
	#endif

	#endif