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 #if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1)
  10 #define SIRFSOC_UART1_PA_BASE          0xb0060000
  11 #elif defined(CONFIG_DEBUG_SIRFMARCO_UART1)
  12 #define SIRFSOC_UART1_PA_BASE          0xcc060000
  13 #else
  14 #define SIRFSOC_UART1_PA_BASE          0
  15 #endif
  16
  17 #define SIRFSOC_UART1_VA_BASE           0xFEC60000
  18
  19 #define SIRFSOC_UART_TXFIFO_STATUS      0x0114
  20 #define SIRFSOC_UART_TXFIFO_DATA        0x0118
  21
  22 #define SIRFSOC_UART1_TXFIFO_FULL                       (1 << 5)
  23 #define SIRFSOC_UART1_TXFIFO_EMPTY                      (1 << 6)
  24
  25         .macro  addruart, rp, rv, tmp
  26         ldr     \rp, =SIRFSOC_UART1_PA_BASE             @ physical
  27         ldr     \rv, =SIRFSOC_UART1_VA_BASE             @ virtual
  28         .endm
  29
  30         .macro  senduart,rd,rx
  31         str     \rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA]
  32         .endm
  33
  34         .macro  busyuart,rd,rx
  35         .endm
  36
  37         .macro  waituart,rd,rx
  38 1001:   ldr     \rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS]
  39         tst     \rd, #SIRFSOC_UART1_TXFIFO_EMPTY
  40         beq     1001b
  41         .endm
  42