arch/arm/mach-h720x/include/mach/uncompress.h

   1 /*
   2  * arch/arm/mach-h720x/include/mach/uncompress.h
   3  *
   4  * Copyright (C) 2001-2002 Jungjun Kim
   5  */
   6
   7 #ifndef __ASM_ARCH_UNCOMPRESS_H
   8 #define __ASM_ARCH_UNCOMPRESS_H
   9
  10 #include <mach/hardware.h>
  11
  12 #define LSR     0x14
  13 #define TEMPTY  0x40
  14
  15 static inline void putc(int c)
  16 {
  17         volatile unsigned char *p = (volatile unsigned char *)(IO_PHYS+0x20000);
  18
  19         /* wait until transmit buffer is empty */
  20         while((p[LSR] & TEMPTY) == 0x0)
  21                 barrier();
  22
  23         /* write next character */
  24         *p = c;
  25 }
  26
  27 static inline void flush(void)
  28 {
  29 }
  30
  31 /*
  32  * nothing to do
  33  */
  34 #define arch_decomp_setup()
  35
  36 #endif