arch/arm/include/debug/vf.S

   1 /*
   2  * Copyright 2013 Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  */
   9
  10         .macro  addruart, rp, rv, tmp
  11         ldr     \rp, =0x40028000        @ physical
  12         ldr     \rv, =0xfe028000        @ virtual
  13         .endm
  14
  15         .macro  senduart, rd, rx
  16         strb    \rd, [\rx, #0x7]        @ Data Register
  17         .endm
  18
  19         .macro  busyuart, rd, rx
  20 1001:   ldrb    \rd, [\rx, #0x4]        @ Status Register 1
  21         tst     \rd, #1 << 6            @ TC
  22         beq     1001b                   @ wait until transmit done
  23         .endm
  24
  25         .macro  waituart,rd,rx
  26         .endm