linux/arch/arm/include/debug/s3c24xx.S
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   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>
  44