include/asm-arm/arch-arm720t/netarm_ser_module.h - u-boot - Git at Google

 /*
  * linux/include/asm-arm/arch-netarm/netarm_ser_module.h
  *
  * Copyright (C) 2000 NETsilicon, Inc.
  * Copyright (C) 2000 Red Hat, Inc.
  *
  * This software is copyrighted by Red Hat. LICENSEE agrees that
  * it will not delete this copyright notice, trademarks or protective
  * notices from any copy made by LICENSEE.
  *
  * This software is provided "AS-IS" and any express or implied
  * warranties or conditions, including but not limited to any
  * implied warranties of merchantability and fitness for a particular
  * purpose regarding this software. In no event shall Red Hat
  * be liable for any indirect, consequential, or incidental damages,
  * loss of profits or revenue, loss of use or data, or interruption
  * of business, whether the alleged damages are labeled in contract,
  * tort, or indemnity.
  *
  * 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.
  *
  * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * author(s) : Joe deBlaquiere
  *             Clark Williams
  */

 #ifndef __NETARM_SER_MODULE_REGISTERS_H
 #define __NETARM_SER_MODULE_REGISTERS_H

 #ifndef	__ASSEMBLER__

 /* (--sub)#include "types.h" */

 /* serial channel control structure */
 typedef struct {
   u32	ctrl_a;
   u32	ctrl_b;
   u32	status_a;
   u32	bitrate;
   u32	fifo;
   u32	rx_buf_timer;
   u32	rx_char_timer;
   u32	rx_match;
   u32	rx_match_mask;
   u32	ctrl_c;
   u32	status_b;
   u32	status_c;
   u32	fifo_last;
   u32	unused[3];
 } netarm_serial_channel_t;

 #endif

 /* SER unit register offsets */

 /* #ifdef CONFIG_ARCH_NETARM */
 #define	NETARM_SER_MODULE_BASE		(0xFFD00000)
 /* #else */
 /* extern serial_channel_t netarm_dummy_registers[]; */
 /* #define NETARM_SER_MODULE_BASE		(netarm_dummy_registers) */
 /* #ifndef NETARM_XTAL_FREQ */
 /* #define NETARM_XTAL_FREQ                18432000 */
 /* #endif */
 /* #endif */

 /* calculate the sysclk value from the pll setting */
 #define	NETARM_PLLED_SYSCLK_FREQ	(( NETARM_XTAL_FREQ / 5 ) * \
 					 ( NETARM_PLL_COUNT_VAL + 3 ))

 #define get_serial_channel(c) (&(((netarm_serial_channel_t *)NETARM_SER_MODULE_BASE)[c]))

 #define	NETARM_SER_CH1_CTRL_A		(0x00)
 #define	NETARM_SER_CH1_CTRL_B		(0x04)
 #define	NETARM_SER_CH1_STATUS_A		(0x08)
 #define	NETARM_SER_CH1_BITRATE		(0x0C)
 #define	NETARM_SER_CH1_FIFO		(0x10)
 #define	NETARM_SER_CH1_RX_BUF_TMR	(0x14)
 #define	NETARM_SER_CH1_RX_CHAR_TMR	(0x18)
 #define	NETARM_SER_CH1_RX_MATCH		(0x1c)
 #define	NETARM_SER_CH1_RX_MATCH_MASK	(0x20)
 #define	NETARM_SER_CH1_CTRL_C		(0x24)
 #define	NETARM_SER_CH1_STATUS_B		(0x28)
 #define	NETARM_SER_CH1_STATUS_C		(0x2c)
 #define	NETARM_SER_CH1_FIFO_LAST	(0x30)

 #define	NETARM_SER_CH2_CTRL_A		(0x40)
 #define	NETARM_SER_CH2_CTRL_B		(0x44)
 #define	NETARM_SER_CH2_STATUS_A		(0x48)
 #define	NETARM_SER_CH2_BITRATE		(0x4C)
 #define	NETARM_SER_CH2_FIFO		(0x50)
 #define	NETARM_SER_CH2_RX_BUF_TMR	(0x54)
 #define	NETARM_SER_CH2_RX_CHAR_TMR	(0x58)
 #define	NETARM_SER_CH2_RX_MATCH		(0x5c)
 #define	NETARM_SER_CH2_RX_MATCH_MASK	(0x60)
 #define	NETARM_SER_CH2_CTRL_C		(0x64)
 #define	NETARM_SER_CH2_STATUS_B		(0x68)
 #define	NETARM_SER_CH2_STATUS_C		(0x6c)
 #define	NETARM_SER_CH2_FIFO_LAST	(0x70)

 /* select bitfield defintions */

 /* Control Register A */

 #define	NETARM_SER_CTLA_ENABLE		(0x80000000)
 #define	NETARM_SER_CTLA_BRK		(0x40000000)

 #define	NETARM_SER_CTLA_STICKP		(0x20000000)

 #define	NETARM_SER_CTLA_P_EVEN		(0x18000000)
 #define	NETARM_SER_CTLA_P_ODD		(0x08000000)
 #define	NETARM_SER_CTLA_P_NONE		(0x00000000)

 /* if you read the errata, you will find that the STOP bits don't work right */
 #define	NETARM_SER_CTLA_2STOP		(0x00000000)
 #define	NETARM_SER_CTLA_3STOP		(0x04000000)

 #define	NETARM_SER_CTLA_5BITS		(0x00000000)
 #define	NETARM_SER_CTLA_6BITS		(0x01000000)
 #define	NETARM_SER_CTLA_7BITS		(0x02000000)
 #define	NETARM_SER_CTLA_8BITS		(0x03000000)

 #define	NETARM_SER_CTLA_CTSTX		(0x00800000)
 #define	NETARM_SER_CTLA_RTSRX		(0x00400000)

 #define	NETARM_SER_CTLA_LOOP_REM	(0x00200000)
 #define	NETARM_SER_CTLA_LOOP_LOC	(0x00100000)

 #define	NETARM_SER_CTLA_GPIO2		(0x00080000)
 #define	NETARM_SER_CTLA_GPIO1		(0x00040000)

 #define	NETARM_SER_CTLA_DTR_EN		(0x00020000)
 #define	NETARM_SER_CTLA_RTS_EN		(0x00010000)

 #define	NETARM_SER_CTLA_IE_RX_BRK	(0x00008000)
 #define	NETARM_SER_CTLA_IE_RX_FRMERR	(0x00004000)
 #define	NETARM_SER_CTLA_IE_RX_PARERR	(0x00002000)
 #define	NETARM_SER_CTLA_IE_RX_OVERRUN	(0x00001000)
 #define	NETARM_SER_CTLA_IE_RX_RDY	(0x00000800)
 #define	NETARM_SER_CTLA_IE_RX_HALF	(0x00000400)
 #define	NETARM_SER_CTLA_IE_RX_FULL	(0x00000200)
 #define	NETARM_SER_CTLA_IE_RX_DMAEN	(0x00000100)
 #define	NETARM_SER_CTLA_IE_RX_DCD	(0x00000080)
 #define	NETARM_SER_CTLA_IE_RX_RI	(0x00000040)
 #define	NETARM_SER_CTLA_IE_RX_DSR	(0x00000020)

 #define NETARM_SER_CTLA_IE_RX_ALL	(NETARM_SER_CTLA_IE_RX_BRK \
 					|NETARM_SER_CTLA_IE_RX_FRMERR \
 					|NETARM_SER_CTLA_IE_RX_PARERR \
 					|NETARM_SER_CTLA_IE_RX_OVERRUN \
 					|NETARM_SER_CTLA_IE_RX_RDY \
 					|NETARM_SER_CTLA_IE_RX_HALF \
 					|NETARM_SER_CTLA_IE_RX_FULL \
 					|NETARM_SER_CTLA_IE_RX_DMAEN \
 					|NETARM_SER_CTLA_IE_RX_DCD \
 					|NETARM_SER_CTLA_IE_RX_RI \
 					|NETARM_SER_CTLA_IE_RX_DSR)

 #define	NETARM_SER_CTLA_IE_TX_CTS	(0x00000010)
 #define	NETARM_SER_CTLA_IE_TX_EMPTY	(0x00000008)
 #define	NETARM_SER_CTLA_IE_TX_HALF	(0x00000004)
 #define	NETARM_SER_CTLA_IE_TX_FULL	(0x00000002)
 #define	NETARM_SER_CTLA_IE_TX_DMAEN	(0x00000001)

 #define NETARM_SER_CTLA_IE_TX_ALL	(NETARM_SER_CTLA_IE_TX_CTS \
 					|NETARM_SER_CTLA_IE_TX_EMPTY \
 					|NETARM_SER_CTLA_IE_TX_HALF \
 					|NETARM_SER_CTLA_IE_TX_FULL \
 					|NETARM_SER_CTLA_IE_TX_DMAEN)

 /* Control Register B */

 #define	NETARM_SER_CTLB_MATCH1_EN	(0x80000000)
 #define	NETARM_SER_CTLB_MATCH2_EN	(0x40000000)
 #define	NETARM_SER_CTLB_MATCH3_EN	(0x20000000)
 #define	NETARM_SER_CTLB_MATCH4_EN	(0x10000000)

 #define	NETARM_SER_CTLB_RBGT_EN		(0x08000000)
 #define	NETARM_SER_CTLB_RCGT_EN		(0x04000000)

 #define	NETARM_SER_CTLB_UART_MODE	(0x00000000)
 #define	NETARM_SER_CTLB_HDLC_MODE	(0x00100000)
 #define	NETARM_SER_CTLB_SPI_MAS_MODE	(0x00200000)
 #define	NETARM_SER_CTLB_SPI_SLV_MODE	(0x00300000)

 #define	NETARM_SER_CTLB_REV_BIT_ORDER	(0x00080000)

 #define	NETARM_SER_CTLB_MAM1		(0x00040000)
 #define	NETARM_SER_CTLB_MAM2		(0x00020000)

 /* Status Register A */

 #define	NETARM_SER_STATA_MATCH1		(0x80000000)
 #define	NETARM_SER_STATA_MATCH2		(0x40000000)
 #define	NETARM_SER_STATA_MATCH3		(0x20000000)
 #define	NETARM_SER_STATA_MATCH4		(0x10000000)

 #define	NETARM_SER_STATA_BGAP		(0x80000000)
 #define	NETARM_SER_STATA_CGAP		(0x40000000)

 #define	NETARM_SER_STATA_RX_1B		(0x00100000)
 #define	NETARM_SER_STATA_RX_2B		(0x00200000)
 #define	NETARM_SER_STATA_RX_3B		(0x00300000)
 #define	NETARM_SER_STATA_RX_4B		(0x00000000)

 /* downshifted values */

 #define	NETARM_SER_STATA_RXFDB_1BYTES	(0x001)
 #define	NETARM_SER_STATA_RXFDB_2BYTES	(0x002)
 #define	NETARM_SER_STATA_RXFDB_3BYTES	(0x003)
 #define	NETARM_SER_STATA_RXFDB_4BYTES	(0x000)

 #define	NETARM_SER_STATA_RXFDB_MASK	(0x00300000)
 #define	NETARM_SER_STATA_RXFDB(x)	(((x) & NETARM_SER_STATA_RXFDB_MASK) \
 					 >> 20)

 #define	NETARM_SER_STATA_DCD		(0x00080000)
 #define	NETARM_SER_STATA_RI		(0x00040000)
 #define	NETARM_SER_STATA_DSR		(0x00020000)
 #define	NETARM_SER_STATA_CTS		(0x00010000)

 #define	NETARM_SER_STATA_RX_BRK		(0x00008000)
 #define	NETARM_SER_STATA_RX_FRMERR	(0x00004000)
 #define	NETARM_SER_STATA_RX_PARERR	(0x00002000)
 #define	NETARM_SER_STATA_RX_OVERRUN	(0x00001000)
 #define	NETARM_SER_STATA_RX_RDY		(0x00000800)
 #define	NETARM_SER_STATA_RX_HALF	(0x00000400)
 #define	NETARM_SER_STATA_RX_CLOSED	(0x00000200)
 #define	NETARM_SER_STATA_RX_FULL	(0x00000100)
 #define	NETARM_SER_STATA_RX_DCD		(0x00000080)
 #define	NETARM_SER_STATA_RX_RI		(0x00000040)
 #define	NETARM_SER_STATA_RX_DSR		(0x00000020)

 #define	NETARM_SER_STATA_TX_CTS		(0x00000010)
 #define	NETARM_SER_STATA_TX_RDY		(0x00000008)
 #define	NETARM_SER_STATA_TX_HALF	(0x00000004)
 #define	NETARM_SER_STATA_TX_FULL	(0x00000002)
 #define	NETARM_SER_STATA_TX_DMAEN	(0x00000001)

 /* you have to clear all receive signals to get the fifo to move forward */
 #define NETARM_SER_STATA_CLR_ALL	(NETARM_SER_STATA_RX_BRK | \
 					 NETARM_SER_STATA_RX_FRMERR | \
 					 NETARM_SER_STATA_RX_PARERR | \
 					 NETARM_SER_STATA_RX_OVERRUN | \
 					 NETARM_SER_STATA_RX_HALF | \
 					 NETARM_SER_STATA_RX_CLOSED | \
 					 NETARM_SER_STATA_RX_FULL | \
 					 NETARM_SER_STATA_RX_DCD | \
 					 NETARM_SER_STATA_RX_RI | \
 					 NETARM_SER_STATA_RX_DSR | \
 					 NETARM_SER_STATA_TX_CTS )

 /* Bit Rate Registers */

 #define	NETARM_SER_BR_EN		(0x80000000)
 #define	NETARM_SER_BR_TMODE		(0x40000000)

 #define	NETARM_SER_BR_RX_CLK_INT	(0x00000000)
 #define	NETARM_SER_BR_RX_CLK_EXT	(0x20000000)
 #define	NETARM_SER_BR_TX_CLK_INT	(0x00000000)
 #define	NETARM_SER_BR_TX_CLK_EXT	(0x10000000)

 #define	NETARM_SER_BR_RX_CLK_DRV	(0x08000000)
 #define	NETARM_SER_BR_TX_CLK_DRV	(0x04000000)

 #define	NETARM_SER_BR_CLK_EXT_5		(0x00000000)
 #define	NETARM_SER_BR_CLK_SYSTEM	(0x01000000)
 #define	NETARM_SER_BR_CLK_OUT1A		(0x02000000)
 #define	NETARM_SER_BR_CLK_OUT2A		(0x03000000)

 #define	NETARM_SER_BR_TX_CLK_INV	(0x00800000)
 #define	NETARM_SER_BR_RX_CLK_INV	(0x00400000)

 /* complete settings assuming system clock input is 18MHz */

 #define	NETARM_SER_BR_MASK		(0x000007FF)

 /* bit rate determined from equation Fbr = Fxtal / [ 10 * ( N + 1 ) ] */
 /* from section 7.5.4 of HW Ref Guide */

 /* #ifdef CONFIG_NETARM_PLL_BYPASS */
 #define	NETARM_SER_BR_X16(x)	( NETARM_SER_BR_EN |			\
 				  NETARM_SER_BR_RX_CLK_INT |		\
 				  NETARM_SER_BR_TX_CLK_INT |		\
 				  NETARM_SER_BR_CLK_EXT_5 |		\
 				  ( ( ( ( NETARM_XTAL_FREQ /		\
 				          ( x * 10 ) ) - 1 ) /	16 ) &	\
 				    NETARM_SER_BR_MASK ) )
 /*
 #else
 #define	NETARM_SER_BR_X16(x)	( NETARM_SER_BR_EN |			\
 				  NETARM_SER_BR_RX_CLK_INT |		\
 				  NETARM_SER_BR_TX_CLK_INT |		\
 				  NETARM_SER_BR_CLK_SYSTEM |		\
 				  ( ( ( ( NETARM_PLLED_SYSCLK_FREQ /		\
 				          ( x * 2 ) ) - 1 ) /	16 ) &	\
 				    NETARM_SER_BR_MASK ) )
 #endif
 */

 /* Receive Buffer Gap Timer */

 #define	NETARM_SER_RX_GAP_TIMER_EN	(0x80000000)
 #define	NETARM_SER_RX_GAP_MASK		(0x00003FFF)

 /* rx gap is a function of bit rate x */

 /* #ifdef CONFIG_NETARM_PLL_BYPASS */
 #define	NETARM_SER_RXGAP(x)	( NETARM_SER_RX_GAP_TIMER_EN |		\
 				  ( ( ( ( 10 * NETARM_XTAL_FREQ ) /	\
 				        ( x * 5 * 512 ) ) - 1 ) &	\
 			              NETARM_SER_RX_GAP_MASK ) )
 /*
 #else
 #define	NETARM_SER_RXGAP(x)	( NETARM_SER_RX_GAP_TIMER_EN |			\
 				  ( ( ( ( 2 * NETARM_PLLED_SYSCLK_FREQ ) /	\
 				        ( x * 512 ) ) - 1 ) &			\
 			              NETARM_SER_RX_GAP_MASK ) )
 #endif
 */

 #if 0
 #define	NETARM_SER_RXGAP(x)	( NETARM_SER_RX_GAP_TIMER_EN |		\
 				  ( ( ( ( 2 * NETARM_PLLED_SYSCLK_FREQ ) /	\
 				        ( x * 5 * 512 ) ) - 1 ) &	\
 			              NETARM_SER_RX_GAP_MASK ) )
 #define	NETARM_SER_RXGAP(x)	( NETARM_SER_RX_GAP_TIMER_EN |		\
 				  ( ( ( ( 10 * NETARM_XTAL_FREQ ) /	\
 				        ( x * 512 ) ) - 1 ) &	\
 			              NETARM_SER_RX_GAP_MASK ) )
 #endif

 #define MIN_BAUD_RATE        600
 #define MAX_BAUD_RATE     115200

 /* the default BAUD rate for the BOOTLOADER, there is a separate */
 /* setting in the serial driver <arch/armnommu/drivers/char/serial-netarm.h> */
 #define DEFAULT_BAUD_RATE 9600
 #define NETARM_SER_FIFO_SIZE 32
 #define MIN_GAP 0

 #endif
	/*
	* linux/include/asm-arm/arch-netarm/netarm_ser_module.h
	*
	* Copyright (C) 2000 NETsilicon, Inc.
	* Copyright (C) 2000 Red Hat, Inc.
	*
	* This software is copyrighted by Red Hat. LICENSEE agrees that
	* it will not delete this copyright notice, trademarks or protective
	* notices from any copy made by LICENSEE.
	*
	* This software is provided "AS-IS" and any express or implied
	* warranties or conditions, including but not limited to any
	* implied warranties of merchantability and fitness for a particular
	* purpose regarding this software. In no event shall Red Hat
	* be liable for any indirect, consequential, or incidental damages,
	* loss of profits or revenue, loss of use or data, or interruption
	* of business, whether the alleged damages are labeled in contract,
	* tort, or indemnity.
	*
	* 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.
	*
	* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
	*
	* author(s) : Joe deBlaquiere
	* Clark Williams
	*/

	#ifndef __NETARM_SER_MODULE_REGISTERS_H
	#define __NETARM_SER_MODULE_REGISTERS_H

	#ifndef __ASSEMBLER__

	/* (--sub)#include "types.h" */

	/* serial channel control structure */
	typedef struct {
	u32 ctrl_a;
	u32 ctrl_b;
	u32 status_a;
	u32 bitrate;
	u32 fifo;
	u32 rx_buf_timer;
	u32 rx_char_timer;
	u32 rx_match;
	u32 rx_match_mask;
	u32 ctrl_c;
	u32 status_b;
	u32 status_c;
	u32 fifo_last;
	u32 unused[3];
	} netarm_serial_channel_t;

	#endif

	/* SER unit register offsets */

	/* #ifdef CONFIG_ARCH_NETARM */
	#define NETARM_SER_MODULE_BASE (0xFFD00000)
	/* #else */
	/* extern serial_channel_t netarm_dummy_registers[]; */
	/* #define NETARM_SER_MODULE_BASE (netarm_dummy_registers) */
	/* #ifndef NETARM_XTAL_FREQ */
	/* #define NETARM_XTAL_FREQ 18432000 */
	/* #endif */
	/* #endif */

	/* calculate the sysclk value from the pll setting */
	#define NETARM_PLLED_SYSCLK_FREQ (( NETARM_XTAL_FREQ / 5 ) * \
	( NETARM_PLL_COUNT_VAL + 3 ))

	#define get_serial_channel(c) (&(((netarm_serial_channel_t *)NETARM_SER_MODULE_BASE)[c]))

	#define NETARM_SER_CH1_CTRL_A (0x00)
	#define NETARM_SER_CH1_CTRL_B (0x04)
	#define NETARM_SER_CH1_STATUS_A (0x08)
	#define NETARM_SER_CH1_BITRATE (0x0C)
	#define NETARM_SER_CH1_FIFO (0x10)
	#define NETARM_SER_CH1_RX_BUF_TMR (0x14)
	#define NETARM_SER_CH1_RX_CHAR_TMR (0x18)
	#define NETARM_SER_CH1_RX_MATCH (0x1c)
	#define NETARM_SER_CH1_RX_MATCH_MASK (0x20)
	#define NETARM_SER_CH1_CTRL_C (0x24)
	#define NETARM_SER_CH1_STATUS_B (0x28)
	#define NETARM_SER_CH1_STATUS_C (0x2c)
	#define NETARM_SER_CH1_FIFO_LAST (0x30)

	#define NETARM_SER_CH2_CTRL_A (0x40)
	#define NETARM_SER_CH2_CTRL_B (0x44)
	#define NETARM_SER_CH2_STATUS_A (0x48)
	#define NETARM_SER_CH2_BITRATE (0x4C)
	#define NETARM_SER_CH2_FIFO (0x50)
	#define NETARM_SER_CH2_RX_BUF_TMR (0x54)
	#define NETARM_SER_CH2_RX_CHAR_TMR (0x58)
	#define NETARM_SER_CH2_RX_MATCH (0x5c)
	#define NETARM_SER_CH2_RX_MATCH_MASK (0x60)
	#define NETARM_SER_CH2_CTRL_C (0x64)
	#define NETARM_SER_CH2_STATUS_B (0x68)
	#define NETARM_SER_CH2_STATUS_C (0x6c)
	#define NETARM_SER_CH2_FIFO_LAST (0x70)

	/* select bitfield defintions */

	/* Control Register A */

	#define NETARM_SER_CTLA_ENABLE (0x80000000)
	#define NETARM_SER_CTLA_BRK (0x40000000)

	#define NETARM_SER_CTLA_STICKP (0x20000000)

	#define NETARM_SER_CTLA_P_EVEN (0x18000000)
	#define NETARM_SER_CTLA_P_ODD (0x08000000)
	#define NETARM_SER_CTLA_P_NONE (0x00000000)

	/* if you read the errata, you will find that the STOP bits don't work right */
	#define NETARM_SER_CTLA_2STOP (0x00000000)
	#define NETARM_SER_CTLA_3STOP (0x04000000)

	#define NETARM_SER_CTLA_5BITS (0x00000000)
	#define NETARM_SER_CTLA_6BITS (0x01000000)
	#define NETARM_SER_CTLA_7BITS (0x02000000)
	#define NETARM_SER_CTLA_8BITS (0x03000000)

	#define NETARM_SER_CTLA_CTSTX (0x00800000)
	#define NETARM_SER_CTLA_RTSRX (0x00400000)

	#define NETARM_SER_CTLA_LOOP_REM (0x00200000)
	#define NETARM_SER_CTLA_LOOP_LOC (0x00100000)

	#define NETARM_SER_CTLA_GPIO2 (0x00080000)
	#define NETARM_SER_CTLA_GPIO1 (0x00040000)

	#define NETARM_SER_CTLA_DTR_EN (0x00020000)
	#define NETARM_SER_CTLA_RTS_EN (0x00010000)

	#define NETARM_SER_CTLA_IE_RX_BRK (0x00008000)
	#define NETARM_SER_CTLA_IE_RX_FRMERR (0x00004000)
	#define NETARM_SER_CTLA_IE_RX_PARERR (0x00002000)
	#define NETARM_SER_CTLA_IE_RX_OVERRUN (0x00001000)
	#define NETARM_SER_CTLA_IE_RX_RDY (0x00000800)
	#define NETARM_SER_CTLA_IE_RX_HALF (0x00000400)
	#define NETARM_SER_CTLA_IE_RX_FULL (0x00000200)
	#define NETARM_SER_CTLA_IE_RX_DMAEN (0x00000100)
	#define NETARM_SER_CTLA_IE_RX_DCD (0x00000080)
	#define NETARM_SER_CTLA_IE_RX_RI (0x00000040)
	#define NETARM_SER_CTLA_IE_RX_DSR (0x00000020)

	#define NETARM_SER_CTLA_IE_RX_ALL (NETARM_SER_CTLA_IE_RX_BRK \
	\|NETARM_SER_CTLA_IE_RX_FRMERR \
	\|NETARM_SER_CTLA_IE_RX_PARERR \
	\|NETARM_SER_CTLA_IE_RX_OVERRUN \
	\|NETARM_SER_CTLA_IE_RX_RDY \
	\|NETARM_SER_CTLA_IE_RX_HALF \
	\|NETARM_SER_CTLA_IE_RX_FULL \
	\|NETARM_SER_CTLA_IE_RX_DMAEN \
	\|NETARM_SER_CTLA_IE_RX_DCD \
	\|NETARM_SER_CTLA_IE_RX_RI \
	\|NETARM_SER_CTLA_IE_RX_DSR)

	#define NETARM_SER_CTLA_IE_TX_CTS (0x00000010)
	#define NETARM_SER_CTLA_IE_TX_EMPTY (0x00000008)
	#define NETARM_SER_CTLA_IE_TX_HALF (0x00000004)
	#define NETARM_SER_CTLA_IE_TX_FULL (0x00000002)
	#define NETARM_SER_CTLA_IE_TX_DMAEN (0x00000001)

	#define NETARM_SER_CTLA_IE_TX_ALL (NETARM_SER_CTLA_IE_TX_CTS \
	\|NETARM_SER_CTLA_IE_TX_EMPTY \
	\|NETARM_SER_CTLA_IE_TX_HALF \
	\|NETARM_SER_CTLA_IE_TX_FULL \
	\|NETARM_SER_CTLA_IE_TX_DMAEN)

	/* Control Register B */

	#define NETARM_SER_CTLB_MATCH1_EN (0x80000000)
	#define NETARM_SER_CTLB_MATCH2_EN (0x40000000)
	#define NETARM_SER_CTLB_MATCH3_EN (0x20000000)
	#define NETARM_SER_CTLB_MATCH4_EN (0x10000000)

	#define NETARM_SER_CTLB_RBGT_EN (0x08000000)
	#define NETARM_SER_CTLB_RCGT_EN (0x04000000)

	#define NETARM_SER_CTLB_UART_MODE (0x00000000)
	#define NETARM_SER_CTLB_HDLC_MODE (0x00100000)
	#define NETARM_SER_CTLB_SPI_MAS_MODE (0x00200000)
	#define NETARM_SER_CTLB_SPI_SLV_MODE (0x00300000)

	#define NETARM_SER_CTLB_REV_BIT_ORDER (0x00080000)

	#define NETARM_SER_CTLB_MAM1 (0x00040000)
	#define NETARM_SER_CTLB_MAM2 (0x00020000)

	/* Status Register A */

	#define NETARM_SER_STATA_MATCH1 (0x80000000)
	#define NETARM_SER_STATA_MATCH2 (0x40000000)
	#define NETARM_SER_STATA_MATCH3 (0x20000000)
	#define NETARM_SER_STATA_MATCH4 (0x10000000)

	#define NETARM_SER_STATA_BGAP (0x80000000)
	#define NETARM_SER_STATA_CGAP (0x40000000)

	#define NETARM_SER_STATA_RX_1B (0x00100000)
	#define NETARM_SER_STATA_RX_2B (0x00200000)
	#define NETARM_SER_STATA_RX_3B (0x00300000)
	#define NETARM_SER_STATA_RX_4B (0x00000000)

	/* downshifted values */

	#define NETARM_SER_STATA_RXFDB_1BYTES (0x001)
	#define NETARM_SER_STATA_RXFDB_2BYTES (0x002)
	#define NETARM_SER_STATA_RXFDB_3BYTES (0x003)
	#define NETARM_SER_STATA_RXFDB_4BYTES (0x000)

	#define NETARM_SER_STATA_RXFDB_MASK (0x00300000)
	#define NETARM_SER_STATA_RXFDB(x) (((x) & NETARM_SER_STATA_RXFDB_MASK) \
	>> 20)

	#define NETARM_SER_STATA_DCD (0x00080000)
	#define NETARM_SER_STATA_RI (0x00040000)
	#define NETARM_SER_STATA_DSR (0x00020000)
	#define NETARM_SER_STATA_CTS (0x00010000)

	#define NETARM_SER_STATA_RX_BRK (0x00008000)
	#define NETARM_SER_STATA_RX_FRMERR (0x00004000)
	#define NETARM_SER_STATA_RX_PARERR (0x00002000)
	#define NETARM_SER_STATA_RX_OVERRUN (0x00001000)
	#define NETARM_SER_STATA_RX_RDY (0x00000800)
	#define NETARM_SER_STATA_RX_HALF (0x00000400)
	#define NETARM_SER_STATA_RX_CLOSED (0x00000200)
	#define NETARM_SER_STATA_RX_FULL (0x00000100)
	#define NETARM_SER_STATA_RX_DCD (0x00000080)
	#define NETARM_SER_STATA_RX_RI (0x00000040)
	#define NETARM_SER_STATA_RX_DSR (0x00000020)

	#define NETARM_SER_STATA_TX_CTS (0x00000010)
	#define NETARM_SER_STATA_TX_RDY (0x00000008)
	#define NETARM_SER_STATA_TX_HALF (0x00000004)
	#define NETARM_SER_STATA_TX_FULL (0x00000002)
	#define NETARM_SER_STATA_TX_DMAEN (0x00000001)

	/* you have to clear all receive signals to get the fifo to move forward */
	#define NETARM_SER_STATA_CLR_ALL (NETARM_SER_STATA_RX_BRK \| \
	NETARM_SER_STATA_RX_FRMERR \| \
	NETARM_SER_STATA_RX_PARERR \| \
	NETARM_SER_STATA_RX_OVERRUN \| \
	NETARM_SER_STATA_RX_HALF \| \
	NETARM_SER_STATA_RX_CLOSED \| \
	NETARM_SER_STATA_RX_FULL \| \
	NETARM_SER_STATA_RX_DCD \| \
	NETARM_SER_STATA_RX_RI \| \
	NETARM_SER_STATA_RX_DSR \| \
	NETARM_SER_STATA_TX_CTS )

	/* Bit Rate Registers */

	#define NETARM_SER_BR_EN (0x80000000)
	#define NETARM_SER_BR_TMODE (0x40000000)

	#define NETARM_SER_BR_RX_CLK_INT (0x00000000)
	#define NETARM_SER_BR_RX_CLK_EXT (0x20000000)
	#define NETARM_SER_BR_TX_CLK_INT (0x00000000)
	#define NETARM_SER_BR_TX_CLK_EXT (0x10000000)

	#define NETARM_SER_BR_RX_CLK_DRV (0x08000000)
	#define NETARM_SER_BR_TX_CLK_DRV (0x04000000)

	#define NETARM_SER_BR_CLK_EXT_5 (0x00000000)
	#define NETARM_SER_BR_CLK_SYSTEM (0x01000000)
	#define NETARM_SER_BR_CLK_OUT1A (0x02000000)
	#define NETARM_SER_BR_CLK_OUT2A (0x03000000)

	#define NETARM_SER_BR_TX_CLK_INV (0x00800000)
	#define NETARM_SER_BR_RX_CLK_INV (0x00400000)

	/* complete settings assuming system clock input is 18MHz */

	#define NETARM_SER_BR_MASK (0x000007FF)

	/* bit rate determined from equation Fbr = Fxtal / [ 10 * ( N + 1 ) ] */
	/* from section 7.5.4 of HW Ref Guide */

	/* #ifdef CONFIG_NETARM_PLL_BYPASS */
	#define NETARM_SER_BR_X16(x) ( NETARM_SER_BR_EN \| \
	NETARM_SER_BR_RX_CLK_INT \| \
	NETARM_SER_BR_TX_CLK_INT \| \
	NETARM_SER_BR_CLK_EXT_5 \| \
	( ( ( ( NETARM_XTAL_FREQ / \
	( x * 10 ) ) - 1 ) / 16 ) & \
	NETARM_SER_BR_MASK ) )
	/*
	#else
	#define NETARM_SER_BR_X16(x) ( NETARM_SER_BR_EN \| \
	NETARM_SER_BR_RX_CLK_INT \| \
	NETARM_SER_BR_TX_CLK_INT \| \
	NETARM_SER_BR_CLK_SYSTEM \| \
	( ( ( ( NETARM_PLLED_SYSCLK_FREQ / \
	( x * 2 ) ) - 1 ) / 16 ) & \
	NETARM_SER_BR_MASK ) )
	#endif
	*/

	/* Receive Buffer Gap Timer */

	#define NETARM_SER_RX_GAP_TIMER_EN (0x80000000)
	#define NETARM_SER_RX_GAP_MASK (0x00003FFF)

	/* rx gap is a function of bit rate x */

	/* #ifdef CONFIG_NETARM_PLL_BYPASS */
	#define NETARM_SER_RXGAP(x) ( NETARM_SER_RX_GAP_TIMER_EN \| \
	( ( ( ( 10 * NETARM_XTAL_FREQ ) / \
	( x * 5 * 512 ) ) - 1 ) & \
	NETARM_SER_RX_GAP_MASK ) )
	/*
	#else
	#define NETARM_SER_RXGAP(x) ( NETARM_SER_RX_GAP_TIMER_EN \| \
	( ( ( ( 2 * NETARM_PLLED_SYSCLK_FREQ ) / \
	( x * 512 ) ) - 1 ) & \
	NETARM_SER_RX_GAP_MASK ) )
	#endif
	*/

	#if 0
	#define NETARM_SER_RXGAP(x) ( NETARM_SER_RX_GAP_TIMER_EN \| \
	( ( ( ( 2 * NETARM_PLLED_SYSCLK_FREQ ) / \
	( x * 5 * 512 ) ) - 1 ) & \
	NETARM_SER_RX_GAP_MASK ) )
	#define NETARM_SER_RXGAP(x) ( NETARM_SER_RX_GAP_TIMER_EN \| \
	( ( ( ( 10 * NETARM_XTAL_FREQ ) / \
	( x * 512 ) ) - 1 ) & \
	NETARM_SER_RX_GAP_MASK ) )
	#endif

	#define MIN_BAUD_RATE 600
	#define MAX_BAUD_RATE 115200

	/* the default BAUD rate for the BOOTLOADER, there is a separate */
	/* setting in the serial driver <arch/armnommu/drivers/char/serial-netarm.h> */
	#define DEFAULT_BAUD_RATE 9600
	#define NETARM_SER_FIFO_SIZE 32
	#define MIN_GAP 0

	#endif