arch/arm/mach-clps711x/include/mach/uncompress.h

   1 /*
   2  *  arch/arm/mach-clps711x/include/mach/uncompress.h
   3  *
   4  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   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 #include <mach/clps711x.h>
  21
  22 #ifdef CONFIG_DEBUG_CLPS711X_UART2
  23 #define SYSFLGx SYSFLG2
  24 #define UARTDRx UARTDR2
  25 #else
  26 #define SYSFLGx SYSFLG1
  27 #define UARTDRx UARTDR1
  28 #endif
  29
  30 #define phys_reg(x)     (*(volatile u32 *)(CLPS711X_PHYS_BASE + (x)))
  31
  32 /*
  33  * The following code assumes the serial port has already been
  34  * initialized by the bootloader.  If you didn't setup a port in
  35  * your bootloader then nothing will appear (which might be desired).
  36  *
  37  * This does not append a newline
  38  */
  39 static inline void putc(int c)
  40 {
  41         while (phys_reg(SYSFLGx) & SYSFLG_UTXFF)
  42                 barrier();
  43         phys_reg(UARTDRx) = c;
  44 }
  45
  46 static inline void flush(void)
  47 {
  48         while (phys_reg(SYSFLGx) & SYSFLG_UBUSY)
  49                 barrier();
  50 }
  51
  52 /*
  53  * nothing to do
  54  */
  55 #define arch_decomp_setup()