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mips: illustrates how to improve performance

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Do not require unecessary roundtrips for clocking out
data.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
Øyvind Harboe
2011-04-01 00:00:39 +02:00
parent 2615bf4398
commit 378567da4e
4 changed files with 21 additions and 14 deletions
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8
src/target/mips_m4k.c
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@@ -254,18 +254,14 @@ static int mips_m4k_assert_reset(struct target *target)
{
if (mips_m4k->is_pic32mx)
{
uint32_t mchip_cmd;
LOG_DEBUG("Using MTAP reset to reset processor...");
/* use microchip specific MTAP reset */
mips_ejtag_set_instr(ejtag_info, MTAP_SW_MTAP);
mips_ejtag_set_instr(ejtag_info, MTAP_COMMAND);
mchip_cmd = MCHP_ASERT_RST;
mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
mchip_cmd = MCHP_DE_ASSERT_RST;
mips_ejtag_drscan_8(ejtag_info, &mchip_cmd);
mips_ejtag_drscan_8_out(ejtag_info, MCHP_ASERT_RST);
mips_ejtag_drscan_8_out(ejtag_info, MCHP_DE_ASSERT_RST);
mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP);
}
else