include/asm-arm/arch-cl7500/uncompress.h

   1 /*
   2  * linux/include/asm-arm/arch-cl7500/uncompress.h
   3  *
   4  * Copyright (C) 1999, 2000 Nexus Electronics Ltd.
   5  */
   6
   7 #define BASE 0x03010000
   8 #define SERBASE (BASE + (0x2f8 << 2))
   9
  10 static __inline__ void putc(char c)
  11 {
  12         while (!(*((volatile unsigned int *)(SERBASE + 0x14)) & 0x20));
  13         *((volatile unsigned int *)(SERBASE)) = c;
  14 }
  15
  16 /*
  17  * This does not append a newline
  18  */
  19 static void putstr(const char *s)
  20 {
  21         while (*s) {
  22                 putc(*s);
  23                 if (*s == '\n')
  24                         putc('\r');
  25                 s++;
  26         }
  27 }
  28
  29 static __inline__ void arch_decomp_setup(void)
  30 {
  31         int baud = 3686400 / (9600 * 32);
  32
  33         *((volatile unsigned int *)(SERBASE + 0xC)) = 0x80;
  34         *((volatile unsigned int *)(SERBASE + 0x0)) = baud & 0xff;
  35         *((volatile unsigned int *)(SERBASE + 0x4)) = (baud & 0xff00) >> 8;
  36         *((volatile unsigned int *)(SERBASE + 0xC)) = 3; /* 8 bits */
  37         *((volatile unsigned int *)(SERBASE + 0x10)) = 3; /* DTR, RTS */
  38 }
  39
  40 /*
  41  * nothing to do
  42  */
  43 #define arch_decomp_wdog()