debug-macro.S
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上传日期:2009-04-28
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- /* linux/include/asm-arm/arch-iop3xx/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
- mov rx, #0xfe000000 @ physical
- #if defined(CONFIG_ARCH_IQ80321) || defined(CONFIG_ARCH_IQ31244)
- orr rx, rx, #0x00800000 @ location of the UART
- #elif defined(CONFIG_ARCH_IOP331)
- mrc p15, 0, rx, c1, c0
- tst rx, #1 @ MMU enabled?
- moveq rx, #0x000fe000 @ Physical Base
- movne rx, #0
- orr rx, rx, #0xfe000000
- orr rx, rx, #0x00f00000 @ Virtual Base
- orr rx, rx, #0x00001700 @ location of the UART
- #else
- #error Unknown IOP3XX implementation
- #endif
- .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
- #if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331)
- 1001: ldrb rd, [rx, #0x6]
- tst rd, #0x10
- beq 1001b
- #endif
- .endm