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linux-pinenote/arch/arm/mach-vexpress/include/mach/debug-macro.S

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ARM: Add Versatile Express support Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-11 21:44:53 +00:00
/* arch/arm/mach-realview/include/mach/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.
*/
#define DEBUG_LL_UART_OFFSET 0x00009000
ARM: add an extra temp register to the low level debugging addruart macro Some platforms (like OMAP not to name it) are doing rather complicated hacks just to determine the base UART address to use. Let's give their addruart macro some slack by providing an extra work register which will allow for much needed cleanups. This is basically a no-op as this commit is only adding the extra argument to the macro but no one is using it yet. Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-08-31 22:55:46 -04:00
.macro addruart,rp,rv,tmp
arm: return both physical and virtual addresses from addruart Rather than checking the MMU status in every instance of addruart, do it once in kernel/debug.S, and change the existing addruart macros to return both physical and virtual addresses. The main debug code can then select the appropriate address to use. This will also allow us to retreive the address of a uart for the MMU state that we're not current in. Updated with fixes for OMAP from Jason Wang <jason77.wang@gmail.com> and Tony Lindgren <tony@atomide.com>, and fix for versatile express from Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Jason Wang <jason77.wang@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-07-06 18:30:06 +08:00
mov \rp, #DEBUG_LL_UART_OFFSET
orr \rv, \rp, #0xf8000000 @ virtual base
orr \rp, \rp, #0x10000000 @ physical base
ARM: Add Versatile Express support Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-11 21:44:53 +00:00
.endm
#include <asm/hardware/debug-pl01x.S>
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