arch/arm/mach-aaec2000/include/mach/uncompress.h

   1 /*
   2  *  arch/arm/mach-aaec2000/include/mach/uncompress.h
   3  *
   4  *  Copyright (c) 2005 Nicolas Bellido Y Ortega
   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 version 2 as
   8  *  published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __ASM_ARCH_UNCOMPRESS_H
  12 #define __ASM_ARCH_UNCOMPRESS_H
  13
  14 #include "hardware.h"
  15
  16 #define UART(x)         (*(volatile unsigned long *)(serial_port + (x)))
  17
  18 static void putc(int c)
  19 {
  20         unsigned long serial_port;
  21         do {
  22                 serial_port = _UART3_BASE;
  23                 if (UART(UART_CR) & UART_CR_EN) break;
  24                 serial_port = _UART1_BASE;
  25                 if (UART(UART_CR) & UART_CR_EN) break;
  26                 serial_port = _UART2_BASE;
  27                 if (UART(UART_CR) & UART_CR_EN) break;
  28                 return;
  29         } while (0);
  30
  31         /* wait for space in the UART's transmitter */
  32         while ((UART(UART_SR) & UART_SR_TxFF))
  33                 barrier();
  34
  35         /* send the character out. */
  36         UART(UART_DR) = c;
  37 }
  38
  39 static inline void flush(void)
  40 {
  41 }
  42
  43 #define arch_decomp_setup()
  44 #define arch_decomp_wdog()
  45
  46 #endif /* __ASM_ARCH_UNCOMPRESS_H */