linux-kernel-test/arch/arm/mach-clps711x/include/mach/debug-macro.S
Jeremy Kerr 0ea1293009 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>
2010-10-20 00:27:33 -04:00

46 lines
1.0 KiB
ArmAsm

/* arch/arm/mach-clps711x/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.
*
*/
#include <mach/hardware.h>
#include <asm/hardware/clps7111.h>
.macro addruart, rp, rv
#ifndef CONFIG_DEBUG_CLPS711X_UART2
mov \rp, #0x0000 @ UART1
#else
mov \rp, #0x1000 @ UART2
#endif
orr \rv, \rp, #CLPS7111_VIRT_BASE
orr \rp, \rp, #CLPS7111_PHYS_BASE
.endm
.macro senduart,rd,rx
str \rd, [\rx, #0x0480] @ UARTDR
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #0x0140] @ SYSFLGx
tst \rd, #1 << 11 @ UBUSYx
bne 1001b
.endm
.macro busyuart,rd,rx
tst \rx, #0x1000 @ UART2 does not have CTS here
bne 1002f
1001: ldr \rd, [\rx, #0x0140] @ SYSFLGx
tst \rd, #1 << 8 @ CTS
bne 1001b
1002:
.endm