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kernel/linux-rt-4.4.41/arch/frv/include/asm/serial-regs.h 1.63 KB
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  /* serial-regs.h: serial port registers
   *
   * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * 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.
   */
  
  #ifndef _ASM_SERIAL_REGS_H
  #define _ASM_SERIAL_REGS_H
  
  #include <linux/serial_reg.h>
  #include <asm/irc-regs.h>
  
  #define SERIAL_ICLK	33333333	/* the target serial input clock */
  #define UART0_BASE	0xfeff9c00
  #define UART1_BASE	0xfeff9c40
  
  #define __get_UART0(R) ({ __reg(UART0_BASE + (R) * 8) >> 24; })
  #define __get_UART1(R) ({ __reg(UART1_BASE + (R) * 8) >> 24; })
  #define __set_UART0(R,V) do { __reg(UART0_BASE + (R) * 8) = (V) << 24; } while(0)
  #define __set_UART1(R,V) do { __reg(UART1_BASE + (R) * 8) = (V) << 24; } while(0)
  
  #define __get_UART0_LSR() ({ __get_UART0(UART_LSR); })
  #define __get_UART1_LSR() ({ __get_UART1(UART_LSR); })
  
  #define __set_UART0_IER(V) __set_UART0(UART_IER,(V))
  #define __set_UART1_IER(V) __set_UART1(UART_IER,(V))
  
  /* serial prescaler select register */
  #define __get_UCPSR()	({ *(volatile unsigned long *)(0xfeff9c90); })
  #define __set_UCPSR(V)	do { *(volatile unsigned long *)(0xfeff9c90) = (V); } while(0)
  #define UCPSR_SELECT0	0x07000000
  #define UCPSR_SELECT1	0x38000000
  
  /* serial prescaler base value register */
  #define __get_UCPVR()	({ *(volatile unsigned long *)(0xfeff9c98); mb(); })
  #define __set_UCPVR(V)	do { *(volatile unsigned long *)(0xfeff9c98) = (V) << 24; mb(); } while(0)
  
  
  #endif /* _ASM_SERIAL_REGS_H */