| /* linux/include/asm-arm/arch-ebsa285/debug-macro.S |
| * |
| * Debugging macro include header |
| * |
| * Copyright (C) 1994-1999 Russell King |
| * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <asm/hardware/dec21285.h> |
| |
| #ifndef CONFIG_DEBUG_DC21285_PORT |
| /* For NetWinder debugging */ |
| .macro addruart,rx |
| mrc p15, 0, \rx, c1, c0 |
| tst \rx, #1 @ MMU enabled? |
| moveq \rx, #0x7c000000 @ physical |
| movne \rx, #0xff000000 @ virtual |
| orr \rx, \rx, #0x000003f8 |
| .endm |
| |
| .macro senduart,rd,rx |
| strb \rd, [\rx] |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1002: ldrb \rd, [\rx, #0x5] |
| and \rd, \rd, #0x60 |
| teq \rd, #0x60 |
| bne 1002b |
| .endm |
| |
| .macro waituart,rd,rx |
| 1001: ldrb \rd, [\rx, #0x6] |
| tst \rd, #0x10 |
| beq 1001b |
| .endm |
| #else |
| /* For EBSA285 debugging */ |
| .equ dc21285_high, ARMCSR_BASE & 0xff000000 |
| .equ dc21285_low, ARMCSR_BASE & 0x00ffffff |
| |
| .macro addruart,rx |
| mrc p15, 0, \rx, c1, c0 |
| tst \rx, #1 @ MMU enabled? |
| moveq \rx, #0x42000000 |
| movne \rx, #dc21285_high |
| .if dc21285_low |
| orrne \rx, \rx, #dc21285_low |
| .endif |
| .endm |
| |
| .macro senduart,rd,rx |
| str \rd, [\rx, #0x160] @ UARTDR |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1001: ldr \rd, [\rx, #0x178] @ UARTFLG |
| tst \rd, #1 << 3 |
| bne 1001b |
| .endm |
| |
| .macro waituart,rd,rx |
| .endm |
| #endif |
