1/* serial-regs.h: serial port registers 2 * 3 * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11 12#ifndef _ASM_SERIAL_REGS_H 13#define _ASM_SERIAL_REGS_H 14 15#include <linux/serial_reg.h> 16#include <asm/irc-regs.h> 17 18#define SERIAL_ICLK 33333333 /* the target serial input clock */ 19#define UART0_BASE 0xfeff9c00 20#define UART1_BASE 0xfeff9c40 21 22#define __get_UART0(R) ({ __reg(UART0_BASE + (R) * 8) >> 24; }) 23#define __get_UART1(R) ({ __reg(UART1_BASE + (R) * 8) >> 24; }) 24#define __set_UART0(R,V) do { __reg(UART0_BASE + (R) * 8) = (V) << 24; } while(0) 25#define __set_UART1(R,V) do { __reg(UART1_BASE + (R) * 8) = (V) << 24; } while(0) 26 27#define __get_UART0_LSR() ({ __get_UART0(UART_LSR); }) 28#define __get_UART1_LSR() ({ __get_UART1(UART_LSR); }) 29 30#define __set_UART0_IER(V) __set_UART0(UART_IER,(V)) 31#define __set_UART1_IER(V) __set_UART1(UART_IER,(V)) 32 33/* serial prescaler select register */ 34#define __get_UCPSR() ({ *(volatile unsigned long *)(0xfeff9c90); }) 35#define __set_UCPSR(V) do { *(volatile unsigned long *)(0xfeff9c90) = (V); } while(0) 36#define UCPSR_SELECT0 0x07000000 37#define UCPSR_SELECT1 0x38000000 38 39/* serial prescaler base value register */ 40#define __get_UCPVR() ({ *(volatile unsigned long *)(0xfeff9c98); mb(); }) 41#define __set_UCPVR(V) do { *(volatile unsigned long *)(0xfeff9c98) = (V) << 24; mb(); } while(0) 42 43 44#endif /* _ASM_SERIAL_REGS_H */ 45