45 строки
1.6 KiB
C
45 строки
1.6 KiB
C
/* serial-regs.h: serial port registers
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*
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* Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_SERIAL_REGS_H
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#define _ASM_SERIAL_REGS_H
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#include <linux/serial_reg.h>
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#include <asm/irc-regs.h>
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#define SERIAL_ICLK 33333333 /* the target serial input clock */
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#define UART0_BASE 0xfeff9c00
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#define UART1_BASE 0xfeff9c40
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#define __get_UART0(R) ({ __reg(UART0_BASE + (R) * 8) >> 24; })
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#define __get_UART1(R) ({ __reg(UART1_BASE + (R) * 8) >> 24; })
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#define __set_UART0(R,V) do { __reg(UART0_BASE + (R) * 8) = (V) << 24; } while(0)
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#define __set_UART1(R,V) do { __reg(UART1_BASE + (R) * 8) = (V) << 24; } while(0)
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#define __get_UART0_LSR() ({ __get_UART0(UART_LSR); })
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#define __get_UART1_LSR() ({ __get_UART1(UART_LSR); })
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#define __set_UART0_IER(V) __set_UART0(UART_IER,(V))
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#define __set_UART1_IER(V) __set_UART1(UART_IER,(V))
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/* serial prescaler select register */
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#define __get_UCPSR() ({ *(volatile unsigned long *)(0xfeff9c90); })
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#define __set_UCPSR(V) do { *(volatile unsigned long *)(0xfeff9c90) = (V); } while(0)
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#define UCPSR_SELECT0 0x07000000
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#define UCPSR_SELECT1 0x38000000
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/* serial prescaler base value register */
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#define __get_UCPVR() ({ *(volatile unsigned long *)(0xfeff9c98); mb(); })
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#define __set_UCPVR(V) do { *(volatile unsigned long *)(0xfeff9c98) = (V) << 24; mb(); } while(0)
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#endif /* _ASM_SERIAL_REGS_H */
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