diff options
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/debug-macro.S')
-rw-r--r-- | arch/arm/mach-sa1100/include/mach/debug-macro.S | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/debug-macro.S b/arch/arm/mach-sa1100/include/mach/debug-macro.S index 336adccea54..0cd0fc9635b 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 @@ | |||
12 | */ | 12 | */ |
13 | #include <mach/hardware.h> | 13 | #include <mach/hardware.h> |
14 | 14 | ||
15 | .macro addruart, rx, tmp | 15 | .macro addruart, rp, rv |
16 | mrc p15, 0, \rx, c1, c0 | 16 | mrc p15, 0, \rp, c1, c0 |
17 | tst \rx, #1 @ MMU enabled? | 17 | tst \rp, #1 @ MMU enabled? |
18 | moveq \rx, #0x80000000 @ physical base address | 18 | moveq \rp, #0x80000000 @ physical base address |
19 | movne \rx, #0xf8000000 @ virtual address | 19 | movne \rp, #0xf8000000 @ virtual address |
20 | 20 | ||
21 | @ We probe for the active serial port here, coherently with | 21 | @ We probe for the active serial port here, coherently with |
22 | @ the comment in arch/arm/mach-sa1100/include/mach/uncompress.h. | 22 | @ the comment in arch/arm/mach-sa1100/include/mach/uncompress.h. |
23 | @ We assume r1 can be clobbered. | 23 | @ We assume r1 can be clobbered. |
24 | 24 | ||
25 | @ see if Ser3 is active | 25 | @ see if Ser3 is active |
26 | add \rx, \rx, #0x00050000 | 26 | add \rp, \rp, #0x00050000 |
27 | ldr r1, [\rx, #UTCR3] | 27 | ldr \rv, [\rp, #UTCR3] |
28 | tst r1, #UTCR3_TXE | 28 | tst \rv, #UTCR3_TXE |
29 | 29 | ||
30 | @ if Ser3 is inactive, then try Ser1 | 30 | @ if Ser3 is inactive, then try Ser1 |
31 | addeq \rx, \rx, #(0x00010000 - 0x00050000) | 31 | addeq \rp, \rp, #(0x00010000 - 0x00050000) |
32 | ldreq r1, [\rx, #UTCR3] | 32 | ldreq \rv, [\rp, #UTCR3] |
33 | tsteq r1, #UTCR3_TXE | 33 | tsteq \rv, #UTCR3_TXE |
34 | 34 | ||
35 | @ if Ser1 is inactive, then try Ser2 | 35 | @ if Ser1 is inactive, then try Ser2 |
36 | addeq \rx, \rx, #(0x00030000 - 0x00010000) | 36 | addeq \rp, \rp, #(0x00030000 - 0x00010000) |
37 | ldreq r1, [\rx, #UTCR3] | 37 | ldreq \rv, [\rp, #UTCR3] |
38 | tsteq r1, #UTCR3_TXE | 38 | tsteq \rv, #UTCR3_TXE |
39 | |||
40 | @ clear top bits, and generate both phys and virt addresses | ||
41 | lsl \rp, \rp, #8 | ||
42 | lsr \rp, \rp, #8 | ||
43 | orr \rv, \rp, #0xf8000000 @ virtual | ||
44 | orr \rp, \rp, #0x80000000 @ physical | ||
39 | 45 | ||
40 | @ if all ports are inactive, then there is nothing we can do | ||
41 | moveq pc, lr | ||
42 | .endm | 46 | .endm |
43 | 47 | ||
44 | .macro senduart,rd,rx | 48 | .macro senduart,rd,rx |