include/asm-arm/arch-at91rm9200/uncompress.h

   1 /*
   2  * include/asm-arm/arch-at91rm9200/uncompress.h
   3  *
   4  *  Copyright (C) 2003 SAN People
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __ASM_ARCH_UNCOMPRESS_H
  22 #define __ASM_ARCH_UNCOMPRESS_H
  23
  24 #include <asm/arch/hardware.h>
  25
  26 /*
  27  * The following code assumes the serial port has already been
  28  * initialized by the bootloader.  We search for the first enabled
  29  * port in the most probable order.  If you didn't setup a port in
  30  * your bootloader then nothing will appear (which might be desired).
  31  *
  32  * This does not append a newline
  33  */
  34 static void putstr(const char *s)
  35 {
  36         void __iomem *sys = (void __iomem *) AT91_BASE_SYS;     /* physical address */
  37
  38         while (*s) {
  39                 while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY)) { barrier(); }
  40                 __raw_writel(*s, sys + AT91_DBGU_THR);
  41                 if (*s == '\n') {
  42                         while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY)) { barrier(); }
  43                         __raw_writel('\r', sys + AT91_DBGU_THR);
  44                 }
  45                 s++;
  46         }
  47         /* wait for transmission to complete */
  48         while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY)) { barrier(); }
  49 }
  50
  51 #define arch_decomp_setup()
  52
  53 #define arch_decomp_wdog()
  54
  55 #endif