X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Farm%2Fmach-sa1100%2Finclude%2Fmach%2Fdebug-macro.S;h=0cd0fc9635b6b3e2afb8668a43bb9a8389b9bbb1;hp=336adccea54232ef50f7b43367f824c26bc20163;hb=d2ecad9faca2221ae6f664f146f0dcae661bf39d;hpb=318ae2edc3b29216abd8a2510f3f80b764f06858

diff --git a/arch/arm/mach-sa1100/include/mach/debug-macro.S b/arch/arm/mach-sa1100/include/mach/debug-macro.S
index 336adccea542..0cd0fc9635b6 100644
--- a/arch/arm/mach-sa1100/include/mach/debug-macro.S
+++ b/arch/arm/mach-sa1100/include/mach/debug-macro.S
@@ -12,33 +12,37 @@
 */
 #include <mach/hardware.h>
 
-		.macro	addruart, rx, tmp
-		mrc	p15, 0, \rx, c1, c0
-		tst	\rx, #1			@ MMU enabled?
-		moveq	\rx, #0x80000000	@ physical base address
-		movne	\rx, #0xf8000000	@ virtual address
+		.macro	addruart, rp, rv
+		mrc	p15, 0, \rp, c1, c0
+		tst	\rp, #1			@ MMU enabled?
+		moveq	\rp, #0x80000000	@ physical base address
+		movne	\rp, #0xf8000000	@ virtual address
 
 		@ We probe for the active serial port here, coherently with
 		@ the comment in arch/arm/mach-sa1100/include/mach/uncompress.h.
 		@ We assume r1 can be clobbered.
 
 		@ see if Ser3 is active
-		add	\rx, \rx, #0x00050000
-		ldr	r1, [\rx, #UTCR3]
-		tst	r1, #UTCR3_TXE
+		add	\rp, \rp, #0x00050000
+		ldr	\rv, [\rp, #UTCR3]
+		tst	\rv, #UTCR3_TXE
 
 		@ if Ser3 is inactive, then try Ser1
-		addeq	\rx, \rx, #(0x00010000 - 0x00050000)
-		ldreq	r1, [\rx, #UTCR3]
-		tsteq	r1, #UTCR3_TXE
+		addeq	\rp, \rp, #(0x00010000 - 0x00050000)
+		ldreq	\rv, [\rp, #UTCR3]
+		tsteq	\rv, #UTCR3_TXE
 
 		@ if Ser1 is inactive, then try Ser2
-		addeq	\rx, \rx, #(0x00030000 - 0x00010000)
-		ldreq	r1, [\rx, #UTCR3]
-		tsteq	r1, #UTCR3_TXE
+		addeq	\rp, \rp, #(0x00030000 - 0x00010000)
+		ldreq	\rv, [\rp, #UTCR3]
+		tsteq	\rv, #UTCR3_TXE
+
+		@ clear top bits, and generate both phys and virt addresses
+		lsl	\rp, \rp, #8
+		lsr	\rp, \rp, #8
+		orr	\rv, \rp, #0xf8000000	@ virtual
+		orr	\rp, \rp, #0x80000000	@ physical
 
-		@ if all ports are inactive, then there is nothing we can do
-		moveq	pc, lr
 		.endm
 
 		.macro	senduart,rd,rx