1/* arch/arm/mach-footbridge/include/mach/debug-macro.S 2 * 3 * Debugging macro include header 4 * 5 * Copyright (C) 1994-1999 Russell King 6 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 * 12*/ 13 14#include <asm/hardware/dec21285.h> 15 16#ifndef CONFIG_DEBUG_DC21285_PORT 17 /* For NetWinder debugging */ 18 .macro addruart,rx 19 mrc p15, 0, \rx, c1, c0 20 tst \rx, #1 @ MMU enabled? 21 moveq \rx, #0x7c000000 @ physical 22 movne \rx, #0xff000000 @ virtual 23 orr \rx, \rx, #0x000003f8 24 .endm 25 26#define UART_SHIFT 0 27#define FLOW_CONTROL 28#include <asm/hardware/debug-8250.S> 29 30#else 31 /* For EBSA285 debugging */ 32 .equ dc21285_high, ARMCSR_BASE & 0xff000000 33 .equ dc21285_low, ARMCSR_BASE & 0x00ffffff 34 35 .macro addruart,rx 36 mrc p15, 0, \rx, c1, c0 37 tst \rx, #1 @ MMU enabled? 38 moveq \rx, #0x42000000 39 movne \rx, #dc21285_high 40 .if dc21285_low 41 orrne \rx, \rx, #dc21285_low 42 .endif 43 .endm 44 45 .macro senduart,rd,rx 46 str \rd, [\rx, #0x160] @ UARTDR 47 .endm 48 49 .macro busyuart,rd,rx 501001: ldr \rd, [\rx, #0x178] @ UARTFLG 51 tst \rd, #1 << 3 52 bne 1001b 53 .endm 54 55 .macro waituart,rd,rx 56 .endm 57#endif 58