arch/arm/include/debug/sirf.S

   1 /*
   2  * arch/arm/mach-prima2/include/mach/debug-macro.S
   3  *
   4  * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
   5  *
   6  * Licensed under GPLv2 or later.
   7  */
   8
   9 #define SIRF_LLUART_TXFIFO_STATUS       0x0114
  10 #define SIRF_LLUART_TXFIFO_DATA 0x0118
  11
  12 #define SIRF_LLUART_TXFIFO_FULL                       (1 << 5)
  13
  14 #ifdef CONFIG_DEBUG_SIRFATLAS7_UART0
  15 #define SIRF_LLUART_TXFIFO_EMPTY                        (1 << 8)
  16 #else
  17 #define SIRF_LLUART_TXFIFO_EMPTY                        (1 << 6)
  18 #endif
  19
  20
  21         .macro  addruart, rp, rv, tmp
  22         ldr     \rp, =CONFIG_DEBUG_UART_PHYS            @ physical
  23         ldr     \rv, =CONFIG_DEBUG_UART_VIRT            @ virtual
  24         .endm
  25
  26         .macro  senduart,rd,rx
  27         str     \rd, [\rx, #SIRF_LLUART_TXFIFO_DATA]
  28         .endm
  29
  30         .macro  busyuart,rd,rx
  31         .endm
  32
  33         .macro  waituart,rd,rx
  34 1001:   ldr     \rd, [\rx, #SIRF_LLUART_TXFIFO_STATUS]
  35         tst     \rd, #SIRF_LLUART_TXFIFO_EMPTY
  36         beq     1001b
  37         .endm
  38