uncompress.h 1.6 KB

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  1. /*
  2. * include/asm-arm/arch-at91/uncompress.h
  3. *
  4. * Copyright (C) 2003 SAN People
  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. #ifndef __ASM_ARCH_UNCOMPRESS_H
  21. #define __ASM_ARCH_UNCOMPRESS_H
  22. #include <asm/hardware.h>
  23. #include <asm/arch/at91_dbgu.h>
  24. /*
  25. * The following code assumes the serial port has already been
  26. * initialized by the bootloader. If you didn't setup a port in
  27. * your bootloader then nothing will appear (which might be desired).
  28. *
  29. * This does not append a newline
  30. */
  31. static void putc(int c)
  32. {
  33. void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
  34. while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY))
  35. barrier();
  36. __raw_writel(c, sys + AT91_DBGU_THR);
  37. }
  38. static inline void flush(void)
  39. {
  40. void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
  41. /* wait for transmission to complete */
  42. while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY))
  43. barrier();
  44. }
  45. #define arch_decomp_setup()
  46. #define arch_decomp_wdog()
  47. #endif