include/asm-arm/arch-l7200/uncompress.h

   1 /*
   2  * linux/include/asm-arm/arch-l7200/uncompress.h
   3  *
   4  * Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
   5  *
   6  * Changelog:
   7  *  05-01-2000  SJH     Created
   8  *  05-13-2000  SJH     Filled in function bodies
   9  *  07-26-2000  SJH     Removed hard coded baud rate
  10  */
  11
  12 #include <asm/hardware.h>
  13
  14 #define IO_UART  IO_START + 0x00044000
  15
  16 #define __raw_writeb(v,p)       (*(volatile unsigned char *)(p) = (v))
  17 #define __raw_readb(p)          (*(volatile unsigned char *)(p))
  18
  19 static inline void putc(int c)
  20 {
  21         while(__raw_readb(IO_UART + 0x18) & 0x20 ||
  22               __raw_readb(IO_UART + 0x18) & 0x08)
  23                 barrier();
  24
  25         __raw_writeb(c, IO_UART + 0x00);
  26 }
  27
  28 static inline void flush(void)
  29 {
  30 }
  31
  32 static __inline__ void arch_decomp_setup(void)
  33 {
  34         __raw_writeb(0x00, IO_UART + 0x08);     /* Set HSB */
  35         __raw_writeb(0x00, IO_UART + 0x20);     /* Disable IRQs */
  36         __raw_writeb(0x01, IO_UART + 0x14);     /* Enable UART */
  37 }
  38
  39 #define arch_decomp_wdog()