arch/arm/include/debug/clps711x.S

   1 /*
   2  * Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru>
   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 as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  */
   9
  10 #ifndef CONFIG_DEBUG_CLPS711X_UART2
  11 #define CLPS711X_UART_PADDR     (0x80000000 + 0x0000)
  12 #define CLPS711X_UART_VADDR     (0xfeff4000 + 0x0000)
  13 #else
  14 #define CLPS711X_UART_PADDR     (0x80000000 + 0x1000)
  15 #define CLPS711X_UART_VADDR     (0xfeff4000 + 0x1000)
  16 #endif
  17
  18 #define SYSFLG          (0x0140)
  19 #define SYSFLG_UBUSY    (1 << 11)
  20 #define UARTDR          (0x0480)
  21
  22         .macro  addruart, rp, rv, tmp
  23         ldr     \rv, =CLPS711X_UART_VADDR
  24         ldr     \rp, =CLPS711X_UART_PADDR
  25         .endm
  26
  27         .macro  waituart,rd,rx
  28         .endm
  29
  30         .macro  senduart,rd,rx
  31         str     \rd, [\rx, #UARTDR]
  32         .endm
  33
  34         .macro  busyuart,rd,rx
  35 1001:   ldr     \rd, [\rx, #SYSFLG]
  36         tst     \rd, #SYSFLG_UBUSY
  37         bne     1001b
  38         .endm