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uncompress.h

/*
 * arch/arm/mach-sa1100/include/mach/uncompress.h
 *
 * (C) 1999 Nicolas Pitre <nico@cam.org>
 *
 * Reorganised to be machine independent.
 */

#include "hardware.h"

/*
 * The following code assumes the serial port has already been
 * initialized by the bootloader.  We search for the first enabled
 * port in the most probable order.  If you didn't setup a port in
 * your bootloader then nothing will appear (which might be desired).
 */

#define UART(x)         (*(volatile unsigned long *)(serial_port + (x)))

static void putc(int c)
{
      unsigned long serial_port;

      do {
            serial_port = _Ser3UTCR0;
            if (UART(UTCR3) & UTCR3_TXE) break;
            serial_port = _Ser1UTCR0;
            if (UART(UTCR3) & UTCR3_TXE) break;
            serial_port = _Ser2UTCR0;
            if (UART(UTCR3) & UTCR3_TXE) break;
            return;
      } while (0);

      /* wait for space in the UART's transmitter */
      while (!(UART(UTSR1) & UTSR1_TNF))
            barrier();

      /* send the character out. */
      UART(UTDR) = c;
}

static inline void flush(void)
{
}

/*
 * Nothing to do for these
 */
#define arch_decomp_setup()
#define arch_decomp_wdog()

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