u-boot

47816 commits 24 branches 545 tags 332 MiB

Author	SHA1	Message	Date
Vitaly Kuzmichev	1a27f7d9c2	ARM: Align stack to 8 bytes The ARM ABI requires that the stack be aligned to 8 bytes as it is noted in Procedure Call Standard for the ARM Architecture: http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042d/index.html Unaligned SP also causes the problem with variable-length arrays allocation when VLA address becomes less than stack pointer during aligning of this address, so the next 'push' in the stack overwrites first 4 bytes of VLA. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>	2010-06-22 21:41:06 +02:00
George G. Davis	409a07c9d7	ARM1136: Fix cache_flush() error and correct cpu_init_crit() comments The ARM1136 cache_flush() function uses the "mcr p15, 0, rn, c7, c7, 0" instruction which means "Invalidate Both Caches" when in fact the intent is to clean and invalidate all caches. So add an "mcr p15, 0, %0, c7, c10, 0" instruction to "Clean Entire Data Cache" prior to the "Invalidate Both Caches" instruction to insure that memory is consistent with any dirty cache lines. Also fix a couple of "flush v*" comments in ARM1136 cpu_init_crit() so that they correctly describe the actual ARM1136 CP15 C7 Cache Operations used. Signed-off-by: George G. Davis <gdavis@mvista.com>	2010-06-01 06:44:09 -05:00
Peter Tyser	84ad688473	arm: Move cpu/$CPU to arch/arm/cpu/$CPU Signed-off-by: Peter Tyser <ptyser@xes-inc.com>	2010-04-13 09:13:24 +02:00

Author

SHA1

Message

Date

Vitaly Kuzmichev

1a27f7d9c2

ARM: Align stack to 8 bytes

The ARM ABI requires that the stack be aligned to 8 bytes as it is noted
in Procedure Call Standard for the ARM Architecture:
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042d/index.html

Unaligned SP also causes the problem with variable-length arrays
allocation when VLA address becomes less than stack pointer during
aligning of this address, so the next 'push' in the stack overwrites
first 4 bytes of VLA.

Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>

2010-06-22 21:41:06 +02:00

George G. Davis

409a07c9d7

ARM1136: Fix cache_flush() error and correct cpu_init_crit() comments

The ARM1136 cache_flush() function uses the "mcr p15, 0, rn, c7, c7, 0"
instruction which means "Invalidate Both Caches" when in fact the intent
is to clean and invalidate all caches.  So add an "mcr p15, 0, %0, c7,
c10, 0" instruction to "Clean Entire Data Cache" prior to the "Invalidate
Both Caches" instruction to insure that memory is consistent with any
dirty cache lines.

Also fix a couple of "flush v*" comments in ARM1136 cpu_init_crit() so
that they correctly describe the actual ARM1136 CP15 C7 Cache Operations
used.

Signed-off-by: George G. Davis <gdavis@mvista.com>

2010-06-01 06:44:09 -05:00

Peter Tyser

84ad688473

arm: Move cpu/$CPU to arch/arm/cpu/$CPU

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

2010-04-13 09:13:24 +02:00

Renamed from cpu/arm1136/start.S (Browse further)

53 commits