debug-macro.S 1.1 KB

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  1. /* linux/include/asm-arm/arch-omap/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, #0xff000000 @ physical base address
  17. movne \rx, #0xfe000000 @ virtual base
  18. orr \rx, \rx, #0x00fb0000
  19. #ifdef CONFIG_OMAP_LL_DEBUG_UART3
  20. orr \rx, \rx, #0x00009000 @ UART 3
  21. #endif
  22. #if defined(CONFIG_OMAP_LL_DEBUG_UART2) || defined(CONFIG_OMAP_LL_DEBUG_UART3)
  23. orr \rx, \rx, #0x00000800 @ UART 2 & 3
  24. #endif
  25. .endm
  26. .macro senduart,rd,rx
  27. strb \rd, [\rx]
  28. .endm
  29. .macro busyuart,rd,rx
  30. 1001: ldrb \rd, [\rx, #(0x5 << 2)] @ OMAP-1510 and friends
  31. and \rd, \rd, #0x60
  32. teq \rd, #0x60
  33. beq 1002f
  34. ldrb \rd, [\rx, #(0x5 << 0)] @ OMAP-730 only
  35. and \rd, \rd, #0x60
  36. teq \rd, #0x60
  37. bne 1001b
  38. 1002:
  39. .endm
  40. .macro waituart,rd,rx
  41. .endm