pl01x.S 769 B

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /* arch/arm/include/debug/pl01x.S
  3. *
  4. * Debugging macro include header
  5. *
  6. * Copyright (C) 1994-1999 Russell King
  7. * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
  8. */
  9. #include <linux/amba/serial.h>
  10. #ifdef CONFIG_DEBUG_UART_PHYS
  11. .macro addruart, rp, rv, tmp
  12. ldr \rp, =CONFIG_DEBUG_UART_PHYS
  13. ldr \rv, =CONFIG_DEBUG_UART_VIRT
  14. .endm
  15. #endif
  16. .macro senduart,rd,rx
  17. strb \rd, [\rx, #UART01x_DR]
  18. .endm
  19. .macro waituartcts,rd,rx
  20. .endm
  21. .macro waituarttxrdy,rd,rx
  22. 1001: ldr \rd, [\rx, #UART01x_FR]
  23. ARM_BE8( rev \rd, \rd )
  24. tst \rd, #UART01x_FR_TXFF
  25. bne 1001b
  26. .endm
  27. .macro busyuart,rd,rx
  28. 1001: ldr \rd, [\rx, #UART01x_FR]
  29. ARM_BE8( rev \rd, \rd )
  30. tst \rd, #UART01x_FR_BUSY
  31. bne 1001b
  32. .endm