arch/arm/mach-w90x900/include/mach/uncompress.h

   1 /*
   2  * arch/arm/mach-w90x900/include/mach/uncompress.h
   3  *
   4  * Copyright (c) 2008 Nuvoton technology corporation
   5  * All rights reserved.
   6  *
   7  * Wan ZongShun <mcuos.com@gmail.com>
   8  *
   9  * Based on arch/arm/mach-s3c2410/include/mach/uncompress.h
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  */
  17
  18 #ifndef __ASM_ARCH_UNCOMPRESS_H
  19 #define __ASM_ARCH_UNCOMPRESS_H
  20
  21 /* Defines for UART registers */
  22
  23 #include <mach/regs-serial.h>
  24 #include <mach/map.h>
  25 #include <linux/serial_reg.h>
  26
  27 #define arch_decomp_wdog()
  28
  29 #define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
  30 static volatile u32 * const uart_base = (u32 *)UART0_PA;
  31
  32 static void putc(int ch)
  33 {
  34         /* Check THRE and TEMT bits before we transmit the character.
  35          */
  36         while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
  37                 barrier();
  38
  39         *uart_base = ch;
  40 }
  41
  42 static inline void flush(void)
  43 {
  44 }
  45
  46 static void arch_decomp_setup(void)
  47 {
  48 }
  49
  50 #endif/* __ASM_W90X900_UNCOMPRESS_H */