| /* linux/include/asm-arm/arch-ixp2000/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. |
| * |
| */ |
| |
| .macro addruart,rx |
| mrc p15, 0, \rx, c1, c0 |
| tst \rx, #1 @ MMU enabled? |
| moveq \rx, #0xc0000000 @ Physical base |
| movne \rx, #0xfe000000 @ virtual base |
| orrne \rx, \rx, #0x00f00000 |
| orr \rx, \rx, #0x00030000 |
| #ifdef __ARMEB__ |
| orr \rx, \rx, #0x00000003 |
| #endif |
| .endm |
| |
| .macro senduart,rd,rx |
| strb \rd, [\rx] |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1002: ldrb \rd, [\rx, #0x14] |
| tst \rd, #0x20 |
| beq 1002b |
| .endm |
| |
| .macro waituart,rd,rx |
| nop |
| nop |
| nop |
| .endm |
