include/linux/serial_s3c.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
  *  Internal header file for Samsung S3C2410 serial ports (UART0-2)
  *
  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
  *
  *  Additional defines, Copyright 2003 Simtec Electronics (linux@simtec.co.uk)
  *
  *  Adapted from:
  *
  *  Internal header file for MX1ADS serial ports (UART1 & 2)
  *
  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
  */

 #ifndef __ASM_ARM_REGS_SERIAL_H
 #define __ASM_ARM_REGS_SERIAL_H

 #define S3C2410_URXH	  (0x24)
 #define S3C2410_UTXH	  (0x20)
 #define S3C2410_ULCON	  (0x00)
 #define S3C2410_UCON	  (0x04)
 #define S3C2410_UFCON	  (0x08)
 #define S3C2410_UMCON	  (0x0C)
 #define S3C2410_UBRDIV	  (0x28)
 #define S3C2410_UTRSTAT	  (0x10)
 #define S3C2410_UERSTAT	  (0x14)
 #define S3C2410_UFSTAT	  (0x18)
 #define S3C2410_UMSTAT	  (0x1C)
 #define USI_CON		  (0xC4)
 #define USI_OPTION	  (0xC8)

 #define USI_CON_RESET			(1<<0)
 #define USI_CON_RESET_MASK		(1<<0)

 #define USI_OPTION_HWACG_CLKREQ_ON	(1<<1)
 #define USI_OPTION_HWACG_CLKSTOP_ON	(1<<2)
 #define USI_OPTION_HWACG_MASK		(3<<1)

 #define S3C2410_LCON_CFGMASK	  ((0xF<<3)|(0x3))

 #define S3C2410_LCON_CS5	  (0x0)
 #define S3C2410_LCON_CS6	  (0x1)
 #define S3C2410_LCON_CS7	  (0x2)
 #define S3C2410_LCON_CS8	  (0x3)
 #define S3C2410_LCON_CSMASK	  (0x3)

 #define S3C2410_LCON_PNONE	  (0x0)
 #define S3C2410_LCON_PEVEN	  (0x5 << 3)
 #define S3C2410_LCON_PODD	  (0x4 << 3)
 #define S3C2410_LCON_PMASK	  (0x7 << 3)

 #define S3C2410_LCON_STOPB	  (1<<2)
 #define S3C2410_LCON_IRM          (1<<6)

 #define S3C2440_UCON_CLKMASK	  (3<<10)
 #define S3C2440_UCON_CLKSHIFT	  (10)
 #define S3C2440_UCON_PCLK	  (0<<10)
 #define S3C2440_UCON_UCLK	  (1<<10)
 #define S3C2440_UCON_PCLK2	  (2<<10)
 #define S3C2440_UCON_FCLK	  (3<<10)
 #define S3C2443_UCON_EPLL	  (3<<10)

 #define S3C6400_UCON_CLKMASK	(3<<10)
 #define S3C6400_UCON_CLKSHIFT	(10)
 #define S3C6400_UCON_PCLK	(0<<10)
 #define S3C6400_UCON_PCLK2	(2<<10)
 #define S3C6400_UCON_UCLK0	(1<<10)
 #define S3C6400_UCON_UCLK1	(3<<10)

 #define S3C2440_UCON2_FCLK_EN	  (1<<15)
 #define S3C2440_UCON0_DIVMASK	  (15 << 12)
 #define S3C2440_UCON1_DIVMASK	  (15 << 12)
 #define S3C2440_UCON2_DIVMASK	  (7 << 12)
 #define S3C2440_UCON_DIVSHIFT	  (12)

 #define S3C2412_UCON_CLKMASK	(3<<10)
 #define S3C2412_UCON_CLKSHIFT	(10)
 #define S3C2412_UCON_UCLK	(1<<10)
 #define S3C2412_UCON_USYSCLK	(3<<10)
 #define S3C2412_UCON_PCLK	(0<<10)
 #define S3C2412_UCON_PCLK2	(2<<10)

 #define S3C2410_UCON_CLKMASK	(1 << 10)
 #define S3C2410_UCON_CLKSHIFT	(10)
 #define S3C2410_UCON_UCLK	  (1<<10)
 #define S3C2410_UCON_SBREAK	  (1<<4)

 #define S3C2410_UCON_TXILEVEL	  (1<<9)
 #define S3C2410_UCON_RXILEVEL	  (1<<8)
 #define S3C2410_UCON_TXIRQMODE	  (1<<2)
 #define S3C2410_UCON_RXIRQMODE	  (1<<0)
 #define S3C2410_UCON_RXFIFO_TOI	  (1<<7)
 #define S3C2443_UCON_RXERR_IRQEN  (1<<6)
 #define S3C2443_UCON_LOOPBACK	  (1<<5)

 #define S3C2410_UCON_DEFAULT	  (S3C2410_UCON_TXILEVEL  | \
 				   S3C2410_UCON_RXILEVEL  | \
 				   S3C2410_UCON_TXIRQMODE | \
 				   S3C2410_UCON_RXIRQMODE | \
 				   S3C2410_UCON_RXFIFO_TOI)

 #define S3C64XX_UCON_TXBURST_1          (0<<20)
 #define S3C64XX_UCON_TXBURST_4          (1<<20)
 #define S3C64XX_UCON_TXBURST_8          (2<<20)
 #define S3C64XX_UCON_TXBURST_16         (3<<20)
 #define S3C64XX_UCON_TXBURST_MASK       (0xf<<20)
 #define S3C64XX_UCON_RXBURST_1          (0<<16)
 #define S3C64XX_UCON_RXBURST_4          (1<<16)
 #define S3C64XX_UCON_RXBURST_8          (2<<16)
 #define S3C64XX_UCON_RXBURST_16         (3<<16)
 #define S3C64XX_UCON_RXBURST_MASK       (0xf<<16)
 #define S3C64XX_UCON_TIMEOUT_SHIFT      (12)
 #define S3C64XX_UCON_TIMEOUT_MASK       (0xf<<12)
 #define S3C64XX_UCON_EMPTYINT_EN        (1<<11)
 #define S3C64XX_UCON_DMASUS_EN          (1<<10)
 #define S3C64XX_UCON_TXINT_LEVEL        (1<<9)
 #define S3C64XX_UCON_RXINT_LEVEL        (1<<8)
 #define S3C64XX_UCON_TIMEOUT_EN         (1<<7)
 #define S3C64XX_UCON_ERRINT_EN          (1<<6)
 #define S3C64XX_UCON_TXMODE_DMA         (2<<2)
 #define S3C64XX_UCON_TXMODE_CPU         (1<<2)
 #define S3C64XX_UCON_TXMODE_MASK        (3<<2)
 #define S3C64XX_UCON_RXMODE_DMA         (2<<0)
 #define S3C64XX_UCON_RXMODE_CPU         (1<<0)
 #define S3C64XX_UCON_RXMODE_MASK        (3<<0)

 #define S3C2410_UFCON_FIFOMODE	  (1<<0)
 #define S3C2410_UFCON_TXTRIG0	  (0<<6)
 #define S3C2410_UFCON_RXTRIG8	  (1<<4)
 #define S3C2410_UFCON_RXTRIG12	  (2<<4)

 /* S3C2440 FIFO trigger levels */
 #define S3C2440_UFCON_RXTRIG1	  (0<<4)
 #define S3C2440_UFCON_RXTRIG8	  (1<<4)
 #define S3C2440_UFCON_RXTRIG16	  (2<<4)
 #define S3C2440_UFCON_RXTRIG32	  (3<<4)

 #define S3C2440_UFCON_TXTRIG0	  (0<<6)
 #define S3C2440_UFCON_TXTRIG16	  (1<<6)
 #define S3C2440_UFCON_TXTRIG32	  (2<<6)
 #define S3C2440_UFCON_TXTRIG48	  (3<<6)

 #define S3C2410_UFCON_RESETBOTH	  (3<<1)
 #define S3C2410_UFCON_RESETTX	  (1<<2)
 #define S3C2410_UFCON_RESETRX	  (1<<1)

 #define S3C2410_UFCON_DEFAULT	  (S3C2410_UFCON_FIFOMODE | \
 				   S3C2410_UFCON_TXTRIG0  | \
 				   S3C2410_UFCON_RXTRIG8 )

 #define	S3C2410_UMCOM_AFC	  (1<<4)
 #define	S3C2410_UMCOM_RTS_LOW	  (1<<0)

 #define S3C2412_UMCON_AFC_63	(0<<5)		/* same as s3c2443 */
 #define S3C2412_UMCON_AFC_56	(1<<5)
 #define S3C2412_UMCON_AFC_48	(2<<5)
 #define S3C2412_UMCON_AFC_40	(3<<5)
 #define S3C2412_UMCON_AFC_32	(4<<5)
 #define S3C2412_UMCON_AFC_24	(5<<5)
 #define S3C2412_UMCON_AFC_16	(6<<5)
 #define S3C2412_UMCON_AFC_8	(7<<5)

 #define S3C2410_UFSTAT_TXFULL	  (1<<9)
 #define S3C2410_UFSTAT_RXFULL	  (1<<8)
 #define S3C2410_UFSTAT_TXMASK	  (15<<4)
 #define S3C2410_UFSTAT_TXSHIFT	  (4)
 #define S3C2410_UFSTAT_RXMASK	  (15<<0)
 #define S3C2410_UFSTAT_RXSHIFT	  (0)

 /* UFSTAT S3C2443 same as S3C2440 */
 #define S3C2440_UFSTAT_TXFULL	  (1<<14)
 #define S3C2440_UFSTAT_RXFULL	  (1<<6)
 #define S3C2440_UFSTAT_TXSHIFT	  (8)
 #define S3C2440_UFSTAT_RXSHIFT	  (0)
 #define S3C2440_UFSTAT_TXMASK	  (63<<8)
 #define S3C2440_UFSTAT_RXMASK	  (63)

 #define S3C2410_UTRSTAT_TIMEOUT   (1<<3)
 #define S3C2410_UTRSTAT_TXE	  (1<<2)
 #define S3C2410_UTRSTAT_TXFE	  (1<<1)
 #define S3C2410_UTRSTAT_RXDR	  (1<<0)

 #define S3C2410_UERSTAT_OVERRUN	  (1<<0)
 #define S3C2410_UERSTAT_FRAME	  (1<<2)
 #define S3C2410_UERSTAT_BREAK	  (1<<3)
 #define S3C2443_UERSTAT_PARITY	  (1<<1)

 #define S3C2410_UERSTAT_ANY	  (S3C2410_UERSTAT_OVERRUN | \
 				   S3C2410_UERSTAT_FRAME | \
 				   S3C2410_UERSTAT_BREAK)

 #define S3C2410_UMSTAT_CTS	  (1<<0)
 #define S3C2410_UMSTAT_DeltaCTS	  (1<<2)

 #define S3C2443_DIVSLOT		  (0x2C)

 /* S3C64XX interrupt registers. */
 #define S3C64XX_UINTP		0x30
 #define S3C64XX_UINTSP		0x34
 #define S3C64XX_UINTM		0x38

 #define S3C64XX_UINTM_RXD	(0)
 #define S3C64XX_UINTM_ERROR     (1)
 #define S3C64XX_UINTM_TXD	(2)
 #define S3C64XX_UINTM_RXD_MSK	(1 << S3C64XX_UINTM_RXD)
 #define S3C64XX_UINTM_ERR_MSK   (1 << S3C64XX_UINTM_ERROR)
 #define S3C64XX_UINTM_TXD_MSK	(1 << S3C64XX_UINTM_TXD)

 /* Following are specific to S5PV210 */
 #define S5PV210_UCON_CLKMASK	(1<<10)
 #define S5PV210_UCON_CLKSHIFT	(10)
 #define S5PV210_UCON_PCLK	(0<<10)
 #define S5PV210_UCON_UCLK	(1<<10)

 #define S5PV210_UFCON_TXTRIG0	(0<<8)
 #define S5PV210_UFCON_TXTRIG4	(1<<8)
 #define S5PV210_UFCON_TXTRIG8	(2<<8)
 #define S5PV210_UFCON_TXTRIG16	(3<<8)
 #define S5PV210_UFCON_TXTRIG32	(4<<8)
 #define S5PV210_UFCON_TXTRIG64	(5<<8)
 #define S5PV210_UFCON_TXTRIG128 (6<<8)
 #define S5PV210_UFCON_TXTRIG256 (7<<8)

 #define S5PV210_UFCON_RXTRIG1	(0<<4)
 #define S5PV210_UFCON_RXTRIG4	(1<<4)
 #define S5PV210_UFCON_RXTRIG8	(2<<4)
 #define S5PV210_UFCON_RXTRIG16	(3<<4)
 #define S5PV210_UFCON_RXTRIG32	(4<<4)
 #define S5PV210_UFCON_RXTRIG64	(5<<4)
 #define S5PV210_UFCON_RXTRIG128	(6<<4)
 #define S5PV210_UFCON_RXTRIG256	(7<<4)

 #define S5PV210_UFSTAT_TXFULL	(1<<24)
 #define S5PV210_UFSTAT_RXFULL	(1<<8)
 #define S5PV210_UFSTAT_TXMASK	(255<<16)
 #define S5PV210_UFSTAT_TXSHIFT	(16)
 #define S5PV210_UFSTAT_RXMASK	(255<<0)
 #define S5PV210_UFSTAT_RXSHIFT	(0)

 #define S3C2410_UCON_CLKSEL0	(1 << 0)
 #define S3C2410_UCON_CLKSEL1	(1 << 1)
 #define S3C2410_UCON_CLKSEL2	(1 << 2)
 #define S3C2410_UCON_CLKSEL3	(1 << 3)

 /* Default values for s5pv210 UCON and UFCON uart registers */
 #define S5PV210_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
 				 S3C2410_UCON_RXILEVEL |	\
 				 S3C2410_UCON_TXIRQMODE |	\
 				 S3C2410_UCON_RXIRQMODE |	\
 				 S3C2410_UCON_RXFIFO_TOI |	\
 				 S3C2443_UCON_RXERR_IRQEN)

 #define S5PV210_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
 				 S5PV210_UFCON_TXTRIG4 |	\
 				 S5PV210_UFCON_RXTRIG4)

 #define APPLE_S5L_UCON_RXTO_ENA		9
 #define APPLE_S5L_UCON_RXTHRESH_ENA	12
 #define APPLE_S5L_UCON_TXTHRESH_ENA	13
 #define APPLE_S5L_UCON_RXTO_ENA_MSK	(1 << APPLE_S5L_UCON_RXTO_ENA)
 #define APPLE_S5L_UCON_RXTHRESH_ENA_MSK	(1 << APPLE_S5L_UCON_RXTHRESH_ENA)
 #define APPLE_S5L_UCON_TXTHRESH_ENA_MSK	(1 << APPLE_S5L_UCON_TXTHRESH_ENA)

 #define APPLE_S5L_UCON_DEFAULT		(S3C2410_UCON_TXIRQMODE | \
 					 S3C2410_UCON_RXIRQMODE | \
 					 S3C2410_UCON_RXFIFO_TOI)

 #define APPLE_S5L_UTRSTAT_RXTHRESH	(1<<4)
 #define APPLE_S5L_UTRSTAT_TXTHRESH	(1<<5)
 #define APPLE_S5L_UTRSTAT_RXTO		(1<<9)
 #define APPLE_S5L_UTRSTAT_ALL_FLAGS	(0x3f0)

 #ifndef __ASSEMBLY__

 #include <linux/serial_core.h>

 /* configuration structure for per-machine configurations for the
  * serial port
  *
  * the pointer is setup by the machine specific initialisation from the
  * arch/arm/mach-s3c/ directory.
 */

 struct s3c2410_uartcfg {
 	unsigned char	   hwport;	 /* hardware port number */
 	unsigned char	   unused;
 	unsigned short	   flags;
 	upf_t		   uart_flags;	 /* default uart flags */
 	unsigned int	   clk_sel;

 	unsigned int	   has_fracval;

 	unsigned long	   ucon;	 /* value of ucon for port */
 	unsigned long	   ulcon;	 /* value of ulcon for port */
 	unsigned long	   ufcon;	 /* value of ufcon for port */
 };

 #endif /* __ASSEMBLY__ */

 #endif /* __ASM_ARM_REGS_SERIAL_H */
	/* SPDX-License-Identifier: GPL-2.0+ */
	/*
	* Internal header file for Samsung S3C2410 serial ports (UART0-2)
	*
	* Copyright (C) 2002 Shane Nay (shane@minirl.com)
	*
	* Additional defines, Copyright 2003 Simtec Electronics (linux@simtec.co.uk)
	*
	* Adapted from:
	*
	* Internal header file for MX1ADS serial ports (UART1 & 2)
	*
	* Copyright (C) 2002 Shane Nay (shane@minirl.com)
	*/

	#ifndef __ASM_ARM_REGS_SERIAL_H
	#define __ASM_ARM_REGS_SERIAL_H

	#define S3C2410_URXH (0x24)
	#define S3C2410_UTXH (0x20)
	#define S3C2410_ULCON (0x00)
	#define S3C2410_UCON (0x04)
	#define S3C2410_UFCON (0x08)
	#define S3C2410_UMCON (0x0C)
	#define S3C2410_UBRDIV (0x28)
	#define S3C2410_UTRSTAT (0x10)
	#define S3C2410_UERSTAT (0x14)
	#define S3C2410_UFSTAT (0x18)
	#define S3C2410_UMSTAT (0x1C)
	#define USI_CON (0xC4)
	#define USI_OPTION (0xC8)

	#define USI_CON_RESET (1<<0)
	#define USI_CON_RESET_MASK (1<<0)

	#define USI_OPTION_HWACG_CLKREQ_ON (1<<1)
	#define USI_OPTION_HWACG_CLKSTOP_ON (1<<2)
	#define USI_OPTION_HWACG_MASK (3<<1)

	#define S3C2410_LCON_CFGMASK ((0xF<<3)\|(0x3))

	#define S3C2410_LCON_CS5 (0x0)
	#define S3C2410_LCON_CS6 (0x1)
	#define S3C2410_LCON_CS7 (0x2)
	#define S3C2410_LCON_CS8 (0x3)
	#define S3C2410_LCON_CSMASK (0x3)

	#define S3C2410_LCON_PNONE (0x0)
	#define S3C2410_LCON_PEVEN (0x5 << 3)
	#define S3C2410_LCON_PODD (0x4 << 3)
	#define S3C2410_LCON_PMASK (0x7 << 3)

	#define S3C2410_LCON_STOPB (1<<2)
	#define S3C2410_LCON_IRM (1<<6)

	#define S3C2440_UCON_CLKMASK (3<<10)
	#define S3C2440_UCON_CLKSHIFT (10)
	#define S3C2440_UCON_PCLK (0<<10)
	#define S3C2440_UCON_UCLK (1<<10)
	#define S3C2440_UCON_PCLK2 (2<<10)
	#define S3C2440_UCON_FCLK (3<<10)
	#define S3C2443_UCON_EPLL (3<<10)

	#define S3C6400_UCON_CLKMASK (3<<10)
	#define S3C6400_UCON_CLKSHIFT (10)
	#define S3C6400_UCON_PCLK (0<<10)
	#define S3C6400_UCON_PCLK2 (2<<10)
	#define S3C6400_UCON_UCLK0 (1<<10)
	#define S3C6400_UCON_UCLK1 (3<<10)

	#define S3C2440_UCON2_FCLK_EN (1<<15)
	#define S3C2440_UCON0_DIVMASK (15 << 12)
	#define S3C2440_UCON1_DIVMASK (15 << 12)
	#define S3C2440_UCON2_DIVMASK (7 << 12)
	#define S3C2440_UCON_DIVSHIFT (12)

	#define S3C2412_UCON_CLKMASK (3<<10)
	#define S3C2412_UCON_CLKSHIFT (10)
	#define S3C2412_UCON_UCLK (1<<10)
	#define S3C2412_UCON_USYSCLK (3<<10)
	#define S3C2412_UCON_PCLK (0<<10)
	#define S3C2412_UCON_PCLK2 (2<<10)

	#define S3C2410_UCON_CLKMASK (1 << 10)
	#define S3C2410_UCON_CLKSHIFT (10)
	#define S3C2410_UCON_UCLK (1<<10)
	#define S3C2410_UCON_SBREAK (1<<4)

	#define S3C2410_UCON_TXILEVEL (1<<9)
	#define S3C2410_UCON_RXILEVEL (1<<8)
	#define S3C2410_UCON_TXIRQMODE (1<<2)
	#define S3C2410_UCON_RXIRQMODE (1<<0)
	#define S3C2410_UCON_RXFIFO_TOI (1<<7)
	#define S3C2443_UCON_RXERR_IRQEN (1<<6)
	#define S3C2443_UCON_LOOPBACK (1<<5)

	#define S3C2410_UCON_DEFAULT (S3C2410_UCON_TXILEVEL \| \
	S3C2410_UCON_RXILEVEL \| \
	S3C2410_UCON_TXIRQMODE \| \
	S3C2410_UCON_RXIRQMODE \| \
	S3C2410_UCON_RXFIFO_TOI)

	#define S3C64XX_UCON_TXBURST_1 (0<<20)
	#define S3C64XX_UCON_TXBURST_4 (1<<20)
	#define S3C64XX_UCON_TXBURST_8 (2<<20)
	#define S3C64XX_UCON_TXBURST_16 (3<<20)
	#define S3C64XX_UCON_TXBURST_MASK (0xf<<20)
	#define S3C64XX_UCON_RXBURST_1 (0<<16)
	#define S3C64XX_UCON_RXBURST_4 (1<<16)
	#define S3C64XX_UCON_RXBURST_8 (2<<16)
	#define S3C64XX_UCON_RXBURST_16 (3<<16)
	#define S3C64XX_UCON_RXBURST_MASK (0xf<<16)
	#define S3C64XX_UCON_TIMEOUT_SHIFT (12)
	#define S3C64XX_UCON_TIMEOUT_MASK (0xf<<12)
	#define S3C64XX_UCON_EMPTYINT_EN (1<<11)
	#define S3C64XX_UCON_DMASUS_EN (1<<10)
	#define S3C64XX_UCON_TXINT_LEVEL (1<<9)
	#define S3C64XX_UCON_RXINT_LEVEL (1<<8)
	#define S3C64XX_UCON_TIMEOUT_EN (1<<7)
	#define S3C64XX_UCON_ERRINT_EN (1<<6)
	#define S3C64XX_UCON_TXMODE_DMA (2<<2)
	#define S3C64XX_UCON_TXMODE_CPU (1<<2)
	#define S3C64XX_UCON_TXMODE_MASK (3<<2)
	#define S3C64XX_UCON_RXMODE_DMA (2<<0)
	#define S3C64XX_UCON_RXMODE_CPU (1<<0)
	#define S3C64XX_UCON_RXMODE_MASK (3<<0)

	#define S3C2410_UFCON_FIFOMODE (1<<0)
	#define S3C2410_UFCON_TXTRIG0 (0<<6)
	#define S3C2410_UFCON_RXTRIG8 (1<<4)
	#define S3C2410_UFCON_RXTRIG12 (2<<4)

	/* S3C2440 FIFO trigger levels */
	#define S3C2440_UFCON_RXTRIG1 (0<<4)
	#define S3C2440_UFCON_RXTRIG8 (1<<4)
	#define S3C2440_UFCON_RXTRIG16 (2<<4)
	#define S3C2440_UFCON_RXTRIG32 (3<<4)

	#define S3C2440_UFCON_TXTRIG0 (0<<6)
	#define S3C2440_UFCON_TXTRIG16 (1<<6)
	#define S3C2440_UFCON_TXTRIG32 (2<<6)
	#define S3C2440_UFCON_TXTRIG48 (3<<6)

	#define S3C2410_UFCON_RESETBOTH (3<<1)
	#define S3C2410_UFCON_RESETTX (1<<2)
	#define S3C2410_UFCON_RESETRX (1<<1)

	#define S3C2410_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE \| \
	S3C2410_UFCON_TXTRIG0 \| \
	S3C2410_UFCON_RXTRIG8 )

	#define S3C2410_UMCOM_AFC (1<<4)
	#define S3C2410_UMCOM_RTS_LOW (1<<0)

	#define S3C2412_UMCON_AFC_63 (0<<5) /* same as s3c2443 */
	#define S3C2412_UMCON_AFC_56 (1<<5)
	#define S3C2412_UMCON_AFC_48 (2<<5)
	#define S3C2412_UMCON_AFC_40 (3<<5)
	#define S3C2412_UMCON_AFC_32 (4<<5)
	#define S3C2412_UMCON_AFC_24 (5<<5)
	#define S3C2412_UMCON_AFC_16 (6<<5)
	#define S3C2412_UMCON_AFC_8 (7<<5)

	#define S3C2410_UFSTAT_TXFULL (1<<9)
	#define S3C2410_UFSTAT_RXFULL (1<<8)
	#define S3C2410_UFSTAT_TXMASK (15<<4)
	#define S3C2410_UFSTAT_TXSHIFT (4)
	#define S3C2410_UFSTAT_RXMASK (15<<0)
	#define S3C2410_UFSTAT_RXSHIFT (0)

	/* UFSTAT S3C2443 same as S3C2440 */
	#define S3C2440_UFSTAT_TXFULL (1<<14)
	#define S3C2440_UFSTAT_RXFULL (1<<6)
	#define S3C2440_UFSTAT_TXSHIFT (8)
	#define S3C2440_UFSTAT_RXSHIFT (0)
	#define S3C2440_UFSTAT_TXMASK (63<<8)
	#define S3C2440_UFSTAT_RXMASK (63)

	#define S3C2410_UTRSTAT_TIMEOUT (1<<3)
	#define S3C2410_UTRSTAT_TXE (1<<2)
	#define S3C2410_UTRSTAT_TXFE (1<<1)
	#define S3C2410_UTRSTAT_RXDR (1<<0)

	#define S3C2410_UERSTAT_OVERRUN (1<<0)
	#define S3C2410_UERSTAT_FRAME (1<<2)
	#define S3C2410_UERSTAT_BREAK (1<<3)
	#define S3C2443_UERSTAT_PARITY (1<<1)

	#define S3C2410_UERSTAT_ANY (S3C2410_UERSTAT_OVERRUN \| \
	S3C2410_UERSTAT_FRAME \| \
	S3C2410_UERSTAT_BREAK)

	#define S3C2410_UMSTAT_CTS (1<<0)
	#define S3C2410_UMSTAT_DeltaCTS (1<<2)

	#define S3C2443_DIVSLOT (0x2C)

	/* S3C64XX interrupt registers. */
	#define S3C64XX_UINTP 0x30
	#define S3C64XX_UINTSP 0x34
	#define S3C64XX_UINTM 0x38

	#define S3C64XX_UINTM_RXD (0)
	#define S3C64XX_UINTM_ERROR (1)
	#define S3C64XX_UINTM_TXD (2)
	#define S3C64XX_UINTM_RXD_MSK (1 << S3C64XX_UINTM_RXD)
	#define S3C64XX_UINTM_ERR_MSK (1 << S3C64XX_UINTM_ERROR)
	#define S3C64XX_UINTM_TXD_MSK (1 << S3C64XX_UINTM_TXD)

	/* Following are specific to S5PV210 */
	#define S5PV210_UCON_CLKMASK (1<<10)
	#define S5PV210_UCON_CLKSHIFT (10)
	#define S5PV210_UCON_PCLK (0<<10)
	#define S5PV210_UCON_UCLK (1<<10)

	#define S5PV210_UFCON_TXTRIG0 (0<<8)
	#define S5PV210_UFCON_TXTRIG4 (1<<8)
	#define S5PV210_UFCON_TXTRIG8 (2<<8)
	#define S5PV210_UFCON_TXTRIG16 (3<<8)
	#define S5PV210_UFCON_TXTRIG32 (4<<8)
	#define S5PV210_UFCON_TXTRIG64 (5<<8)
	#define S5PV210_UFCON_TXTRIG128 (6<<8)
	#define S5PV210_UFCON_TXTRIG256 (7<<8)

	#define S5PV210_UFCON_RXTRIG1 (0<<4)
	#define S5PV210_UFCON_RXTRIG4 (1<<4)
	#define S5PV210_UFCON_RXTRIG8 (2<<4)
	#define S5PV210_UFCON_RXTRIG16 (3<<4)
	#define S5PV210_UFCON_RXTRIG32 (4<<4)
	#define S5PV210_UFCON_RXTRIG64 (5<<4)
	#define S5PV210_UFCON_RXTRIG128 (6<<4)
	#define S5PV210_UFCON_RXTRIG256 (7<<4)

	#define S5PV210_UFSTAT_TXFULL (1<<24)
	#define S5PV210_UFSTAT_RXFULL (1<<8)
	#define S5PV210_UFSTAT_TXMASK (255<<16)
	#define S5PV210_UFSTAT_TXSHIFT (16)
	#define S5PV210_UFSTAT_RXMASK (255<<0)
	#define S5PV210_UFSTAT_RXSHIFT (0)

	#define S3C2410_UCON_CLKSEL0 (1 << 0)
	#define S3C2410_UCON_CLKSEL1 (1 << 1)
	#define S3C2410_UCON_CLKSEL2 (1 << 2)
	#define S3C2410_UCON_CLKSEL3 (1 << 3)

	/* Default values for s5pv210 UCON and UFCON uart registers */
	#define S5PV210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL \| \
	S3C2410_UCON_RXILEVEL \| \
	S3C2410_UCON_TXIRQMODE \| \
	S3C2410_UCON_RXIRQMODE \| \
	S3C2410_UCON_RXFIFO_TOI \| \
	S3C2443_UCON_RXERR_IRQEN)

	#define S5PV210_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE \| \
	S5PV210_UFCON_TXTRIG4 \| \
	S5PV210_UFCON_RXTRIG4)

	#define APPLE_S5L_UCON_RXTO_ENA 9
	#define APPLE_S5L_UCON_RXTHRESH_ENA 12
	#define APPLE_S5L_UCON_TXTHRESH_ENA 13
	#define APPLE_S5L_UCON_RXTO_ENA_MSK (1 << APPLE_S5L_UCON_RXTO_ENA)
	#define APPLE_S5L_UCON_RXTHRESH_ENA_MSK (1 << APPLE_S5L_UCON_RXTHRESH_ENA)
	#define APPLE_S5L_UCON_TXTHRESH_ENA_MSK (1 << APPLE_S5L_UCON_TXTHRESH_ENA)

	#define APPLE_S5L_UCON_DEFAULT (S3C2410_UCON_TXIRQMODE \| \
	S3C2410_UCON_RXIRQMODE \| \
	S3C2410_UCON_RXFIFO_TOI)

	#define APPLE_S5L_UTRSTAT_RXTHRESH (1<<4)
	#define APPLE_S5L_UTRSTAT_TXTHRESH (1<<5)
	#define APPLE_S5L_UTRSTAT_RXTO (1<<9)
	#define APPLE_S5L_UTRSTAT_ALL_FLAGS (0x3f0)

	#ifndef __ASSEMBLY__

	#include <linux/serial_core.h>

	/* configuration structure for per-machine configurations for the
	* serial port
	*
	* the pointer is setup by the machine specific initialisation from the
	* arch/arm/mach-s3c/ directory.
	*/

	struct s3c2410_uartcfg {
	unsigned char hwport; /* hardware port number */
	unsigned char unused;
	unsigned short flags;
	upf_t uart_flags; /* default uart flags */
	unsigned int clk_sel;

	unsigned int has_fracval;

	unsigned long ucon; /* value of ucon for port */
	unsigned long ulcon; /* value of ulcon for port */
	unsigned long ufcon; /* value of ufcon for port */
	};

	#endif /* __ASSEMBLY__ */

	#endif /* __ASM_ARM_REGS_SERIAL_H */