| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 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 |
| 50 | 1001: 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 |