debug-macro.S 860 B

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  1. /* linux/include/asm-arm/arch-imx/debug-macro.S
  2. *
  3. * Debugging macro include header
  4. *
  5. * Copyright (C) 1994-1999 Russell King
  6. * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License version 2 as
  10. * published by the Free Software Foundation.
  11. *
  12. */
  13. .macro addruart,rx
  14. mrc p15, 0, \rx, c1, c0
  15. tst \rx, #1 @ MMU enabled?
  16. moveq \rx, #0x00000000 @ physical
  17. movne \rx, #0xe0000000 @ virtual
  18. orreq \rx, \rx, #0x00200000 @ physical
  19. orr \rx, \rx, #0x00006000 @ UART1 offset
  20. .endm
  21. .macro senduart,rd,rx
  22. str \rd, [\rx, #0x40] @ TXDATA
  23. .endm
  24. .macro waituart,rd,rx
  25. .endm
  26. .macro busyuart,rd,rx
  27. 1002: ldr \rd, [\rx, #0x98] @ SR2
  28. tst \rd, #1 << 3 @ TXDC
  29. beq 1002b @ wait until transmit done
  30. .endm