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improve DCC bulk write performance by using jtag_add_shift() + tweaked embedded ICE communication. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@416 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-03-01 15:53:10 +00:00
parent 4b06fa39ae
commit 6cf398f3ce
1 changed files with 21 additions and 4 deletions
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25
src/target/arm7_9_common.c
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@ -2164,11 +2164,28 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe
armv4_5->core_state = ARMV4_5_STATE_ARM; armv4_5->core_state = ARMV4_5_STATE_ARM;
arm7_9_resume(target, 0, arm7_9->dcc_working_area->address, 1, 1); arm7_9_resume(target, 0, arm7_9->dcc_working_area->address, 1, 1);
for (i = 0; i < count; i++) int little=target->endianness==TARGET_LITTLE_ENDIAN;
if (count>2)
{ {
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], target_buffer_get_u32(target, buffer)); /* Handle first & last using standard embeddedice_write_reg and the middle ones w/the
buffer += 4; core function repeated.
*/
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
buffer+=4;
for (i = 1; i < count - 1; i++)
{
embeddedice_write_reg_inner(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
buffer += 4;
}
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
} else
{
for (i = 0; i < count; i++)
{
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
buffer += 4;
}
} }
target->type->halt(target); target->type->halt(target);