arch/arm/mach-sa1100/include/mach/uncompress.h

   1 /*
   2  * arch/arm/mach-sa1100/include/mach/uncompress.h
   3  *
   4  * (C) 1999 Nicolas Pitre <nico@fluxnic.net>
   5  *
   6  * Reorganised to be machine independent.
   7  */
   8
   9 #include "hardware.h"
  10
  11 #define IOMEM(x)        (x)
  12
  13 /*
  14  * The following code assumes the serial port has already been
  15  * initialized by the bootloader.  We search for the first enabled
  16  * port in the most probable order.  If you didn't setup a port in
  17  * your bootloader then nothing will appear (which might be desired).
  18  */
  19
  20 #define UART(x)         (*(volatile unsigned long *)(serial_port + (x)))
  21
  22 static void putc(int c)
  23 {
  24         unsigned long serial_port;
  25
  26         do {
  27                 serial_port = _Ser3UTCR0;
  28                 if (UART(UTCR3) & UTCR3_TXE) break;
  29                 serial_port = _Ser1UTCR0;
  30                 if (UART(UTCR3) & UTCR3_TXE) break;
  31                 serial_port = _Ser2UTCR0;
  32                 if (UART(UTCR3) & UTCR3_TXE) break;
  33                 return;
  34         } while (0);
  35
  36         /* wait for space in the UART's transmitter */
  37         while (!(UART(UTSR1) & UTSR1_TNF))
  38                 barrier();
  39
  40         /* send the character out. */
  41         UART(UTDR) = c;
  42 }
  43
  44 static inline void flush(void)
  45 {
  46 }
  47
  48 /*
  49  * Nothing to do for these
  50  */
  51 #define arch_decomp_setup()