arch/arm/include/debug/vt8500.S

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Debugging macro include header
   4  *
   5  *  Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
   6  *    Moved from arch/arm/mach-vt8500/include/mach/debug-macro.S
   7  *    Minor changes for readability.
   8  */
   9
  10 #define DEBUG_LL_PHYS_BASE              0xD8000000
  11 #define DEBUG_LL_VIRT_BASE              0xF8000000
  12 #define DEBUG_LL_UART_OFFSET            0x00200000
  13
  14 #if defined(CONFIG_DEBUG_VT8500_UART0)
  15         .macro  addruart, rp, rv, tmp
  16         mov     \rp,      #DEBUG_LL_UART_OFFSET
  17         orr     \rv, \rp, #DEBUG_LL_VIRT_BASE
  18         orr     \rp, \rp, #DEBUG_LL_PHYS_BASE
  19         .endm
  20
  21         .macro  senduart,rd,rx
  22         strb    \rd, [\rx, #0]
  23         .endm
  24
  25         .macro  busyuart,rd,rx
  26 1001:   ldr     \rd, [\rx, #0x1c]
  27         ands    \rd, \rd, #0x2
  28         bne     1001b
  29         .endm
  30
  31         .macro  waituart,rd,rx
  32         .endm
  33
  34 #endif