| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* linux/include/asm-arm/arch-iop3xx/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 | .macro addruart,rx |
| 15 | mov \rx, #0xfe000000 @ physical |
| 16 | #if defined(CONFIG_ARCH_IQ80321) || defined(CONFIG_ARCH_IQ31244) |
| 17 | orr \rx, \rx, #0x00800000 @ location of the UART |
| 18 | #elif defined(CONFIG_ARCH_IOP331) |
| 19 | mrc p15, 0, \rx, c1, c0 |
| 20 | tst \rx, #1 @ MMU enabled? |
| 21 | moveq \rx, #0x000fe000 @ Physical Base |
| 22 | movne \rx, #0 |
| 23 | orr \rx, \rx, #0xfe000000 |
| 24 | orr \rx, \rx, #0x00f00000 @ Virtual Base |
| 25 | orr \rx, \rx, #0x00001700 @ location of the UART |
| 26 | #else |
| 27 | #error Unknown IOP3XX implementation |
| 28 | #endif |
| 29 | .endm |
| 30 | |
| 31 | .macro senduart,rd,rx |
| 32 | strb \rd, [\rx] |
| 33 | .endm |
| 34 | |
| 35 | .macro busyuart,rd,rx |
| 36 | 1002: ldrb \rd, [\rx, #0x5] |
| 37 | and \rd, \rd, #0x60 |
| 38 | teq \rd, #0x60 |
| 39 | bne 1002b |
| 40 | .endm |
| 41 | |
| 42 | .macro waituart,rd,rx |
| 43 | #if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331) |
| 44 | 1001: ldrb \rd, [\rx, #0x6] |
| 45 | tst \rd, #0x10 |
| 46 | beq 1001b |
| 47 | #endif |
| 48 | .endm |