From 6cf398f3ce76652156d65f552ca8c1804e21a0ff Mon Sep 17 00:00:00 2001
From: oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Sat, 1 Mar 2008 15:53:10 +0000
Subject: [PATCH] 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
---
src/target/arm7_9_common.c | 25 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c
index dd713b9b9..3c995a235 100644
--- a/src/target/arm7_9_common.c
+++ b/src/target/arm7_9_common.c
@@ -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;
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)
+ {
+ /* Handle first & last using standard embeddedice_write_reg and the middle ones w/the
+ 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
{
- embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], target_buffer_get_u32(target, buffer));
- buffer += 4;
+ 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);
--
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