59 lines
1.4 KiB
ArmAsm
59 lines
1.4 KiB
ArmAsm
/* linux/include/asm-arm/arch-omap/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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.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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#ifdef CONFIG_ARCH_OMAP1
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moveq \rx, #0xff000000 @ physical base address
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movne \rx, #0xfe000000 @ virtual base
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orr \rx, \rx, #0x00fb0000
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#ifdef CONFIG_OMAP_LL_DEBUG_UART3
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orr \rx, \rx, #0x00009000 @ UART 3
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#endif
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#if defined(CONFIG_OMAP_LL_DEBUG_UART2) || defined(CONFIG_OMAP_LL_DEBUG_UART3)
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orr \rx, \rx, #0x00000800 @ UART 2 & 3
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#endif
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#elif CONFIG_ARCH_OMAP2
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moveq \rx, #0x48000000 @ physical base address
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movne \rx, #0xd8000000 @ virtual base
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orr \rx, \rx, #0x0006a000
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#ifdef CONFIG_OMAP_LL_DEBUG_UART2
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add \rx, \rx, #0x00002000 @ UART 2
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#endif
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#ifdef CONFIG_OMAP_LL_DEBUG_UART3
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add \rx, \rx, #0x00004000 @ UART 3
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#endif
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#endif
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.endm
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.macro senduart,rd,rx
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strb \rd, [\rx]
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.endm
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.macro busyuart,rd,rx
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1001: ldrb \rd, [\rx, #(0x5 << 2)] @ OMAP-1510 and friends
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and \rd, \rd, #0x60
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teq \rd, #0x60
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beq 1002f
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ldrb \rd, [\rx, #(0x5 << 0)] @ OMAP-730 only
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and \rd, \rd, #0x60
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teq \rd, #0x60
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bne 1001b
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1002:
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.endm
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.macro waituart,rd,rx
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.endm
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