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Remove misleading typedef and just use struct arm.
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Remove misleading typedef and redundant suffix from struct armv4_5_algorithm.
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Remove misleading typedef and redundant suffix from struct reg_param.
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Optionally shave time off the armv4_5 run_algorithm() code: let
them terminate using software breakpoints, avoiding roundtrips
to manage hardware ones.
Enable this by using BKPT to terminate execution instead of "branch
to here" loops. Then pass zero as the exit address, except when
running on an ARMv4 core. ARM7TDMI, ARM9TDMI, and derived cores
now set a flag saying they're ARMv4.
Use that mechanism in arm_nandwrite(), for about 3% speedup on a
DaVinci ARM926 core; not huge, but it helps. Some other algorithms
could use this too (mostly flavors of flash operation).
git-svn-id: svn://svn.berlios.de/openocd/trunk@2680 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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Abstract the orion_nand_fast_block_write() routine into a separate
routine -- arm_nandwrite() -- so that other ARM cores can reuse it.
Have davinci_nand do so. This faster than byte-at-a-time ops by a
factor of three (!), even given the slowish interactions to support
hardware ECC (1-bit flavor in that test) each 512 bytes; those could
be read more efficiently by on-chip code.
NOTE that until there's a generic "ARM algorithm" structure, this
can't work on newer ARMv6 (like ARM1136) or ARMv7A (like Cortex-A8)
cores, though the downloaded code itself would work just fine there.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2663 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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