root/arch/arm/include/debug/s3c24xx.S

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* arch/arm/mach-s3c2410/include/mach/debug-macro.S
   3  *
   4  * Debugging macro include header
   5  *
   6  *  Copyright (C) 1994-1999 Russell King
   7  *  Copyright (C) 2005 Simtec Electronics
   8  *
   9  *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
  10 */
  11 
  12 #include <linux/serial_s3c.h>
  13 
  14 #define S3C2410_UART1_OFF (0x4000)
  15 
  16         .macro addruart, rp, rv, tmp
  17                 ldr     \rp, = CONFIG_DEBUG_UART_PHYS
  18                 ldr     \rv, = CONFIG_DEBUG_UART_VIRT
  19         .endm
  20 
  21         .macro  fifo_full_s3c2410 rd, rx
  22                 ldr     \rd, [\rx, # S3C2410_UFSTAT]
  23                 tst     \rd, #S3C2410_UFSTAT_TXFULL
  24         .endm
  25 
  26         .macro fifo_level_s3c2410 rd, rx
  27                 ldr     \rd, [\rx, # S3C2410_UFSTAT]
  28                 and     \rd, \rd, #S3C2410_UFSTAT_TXMASK
  29         .endm
  30 
  31 /* Select the correct implementation depending on the configuration. The
  32  * S3C2440 will get selected by default, as these are the most widely
  33  * used variants of these
  34 */
  35 
  36 #if defined(CONFIG_DEBUG_S3C2410_UART)
  37 #define fifo_full  fifo_full_s3c2410
  38 #define fifo_level fifo_level_s3c2410
  39 #endif
  40 
  41 /* include the reset of the code which will do the work */
  42 
  43 #include <debug/samsung.S>