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42 lines
1007 B
42 lines
1007 B
20 years ago
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/* linux/include/asm-arm/arch-epxa10db/debug-macro.S
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*
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* Debugging macro include header
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*
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* Copyright (C) 1994-1999 Russell King
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* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <asm/arch/excalibur.h>
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#define UART00_TYPE
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#include <asm/arch/uart00.h>
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.macro addruart,rx
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mrc p15, 0, \rx, c1, c0
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tst \rx, #1 @ MMU enabled?
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ldr \rx, =EXC_UART00_BASE @ physical base address
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orrne \rx, \rx, #0xff000000 @ virtual base
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orrne \rx, \rx, #0x00f00000
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.endm
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.macro senduart,rd,rx
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str \rd, [\rx, #UART_TD(0)]
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.endm
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.macro waituart,rd,rx
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1001: ldr \rd, [\rx, #UART_TSR(0)]
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and \rd, \rd, #UART_TSR_TX_LEVEL_MSK
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cmp \rd, #15
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beq 1001b
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.endm
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.macro busyuart,rd,rx
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1001: ldr \rd, [\rx, #UART_TSR(0)]
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ands \rd, \rd, #UART_TSR_TX_LEVEL_MSK
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bne 1001b
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.endm
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