arch/arm/mach-footbridge/include/mach/uncompress.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  arch/arm/mach-footbridge/include/mach/uncompress.h
   4  *
   5  *  Copyright (C) 1996-1999 Russell King
   6  */
   7 #include <asm/mach-types.h>
   8
   9 /*
  10  * Note! This could cause problems on the NetWinder
  11  */
  12 #define DC21285_BASE ((volatile unsigned int *)0x42000160)
  13 #define SER0_BASE    ((volatile unsigned char *)0x7c0003f8)
  14
  15 static inline void putc(char c)
  16 {
  17         if (machine_is_netwinder()) {
  18                 while ((SER0_BASE[5] & 0x60) != 0x60)
  19                         barrier();
  20                 SER0_BASE[0] = c;
  21         } else {
  22                 while (DC21285_BASE[6] & 8);
  23                 DC21285_BASE[0] = c;
  24         }
  25 }
  26
  27 static inline void flush(void)
  28 {
  29 }
  30
  31 /*
  32  * nothing to do
  33  */
  34 #define arch_decomp_setup()