Commit c77b0427 authored by Russell King's avatar Russell King Committed by Russell King

[PATCH] ARM: Make the magic values in head.S more obvious

Make the magic address values in head.S more obvious as to where
they came from.  Wrap all debug code in CONFIG_DEBUG_LL.
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e695f604
......@@ -344,9 +344,9 @@ __create_page_tables:
str r6, [r0]
#endif
#ifdef CONFIG_DEBUG_LL
bic r7, r7, #0x0c @ turn off cacheable
@ and bufferable bits
#ifdef CONFIG_DEBUG_LL
/*
* Map in IO space for serial debugging.
* This allows debug messages to be output
......@@ -372,27 +372,23 @@ __create_page_tables:
teq r1, #MACH_TYPE_NETWINDER
teqne r1, #MACH_TYPE_CATS
bne 1f
add r0, r4, #0x3fc0 @ ff000000
mov r3, #0x7c000000
orr r3, r3, r7
str r3, [r0], #4
add r3, r3, #1 << 20
str r3, [r0], #4
add r0, r4, #0xff000000 >> 18
orr r3, r7, #0x7c000000
str r3, [r0]
1:
#endif
#endif
#ifdef CONFIG_ARCH_RPC
/*
* Map in screen at 0x02000000 & SCREEN2_BASE
* Similar reasons here - for debug. This is
* only for Acorn RiscPC architectures.
*/
add r0, r4, #0x80 @ 02000000
mov r3, #0x02000000
orr r3, r3, r7
add r0, r4, #0x02000000 >> 18
orr r3, r7, #0x02000000
str r3, [r0]
add r0, r4, #0x3600 @ d8000000
add r0, r4, #0xd8000000 >> 18
str r3, [r0]
#endif
#endif
mov pc, lr
.ltorg
......
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