From 378567da4e40a31efed349fbe68deebd14079b94 Mon Sep 17 00:00:00 2001 From: Øyvind Harboe Date: Fri, 1 Apr 2011 00:00:39 +0200 Subject: mips: illustrates how to improve performance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Do not require unecessary roundtrips for clocking out data. Signed-off-by: Øyvind Harboe --- src/flash/nor/pic32mx.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'src/flash') diff --git a/src/flash/nor/pic32mx.c b/src/flash/nor/pic32mx.c index 89fe9b05..b3c6da3e 100644 --- a/src/flash/nor/pic32mx.c +++ b/src/flash/nor/pic32mx.c @@ -774,11 +774,9 @@ COMMAND_HANDLER(pic32mx_handle_unlock_command) } /* unlock/erase device */ - mchip_cmd = MCHP_ASERT_RST; - mips_ejtag_drscan_8(ejtag_info, &mchip_cmd); + mips_ejtag_drscan_8_out(ejtag_info, MCHP_ASERT_RST); - mchip_cmd = MCHP_ERASE; - mips_ejtag_drscan_8(ejtag_info, &mchip_cmd); + mips_ejtag_drscan_8_out(ejtag_info, MCHP_ERASE); do { mchip_cmd = MCHP_STATUS; @@ -791,8 +789,7 @@ COMMAND_HANDLER(pic32mx_handle_unlock_command) alive_sleep(1); } while ((mchip_cmd & (1 << 2)) || (!(mchip_cmd & (1 << 3)))); - mchip_cmd = MCHP_DE_ASSERT_RST; - mips_ejtag_drscan_8(ejtag_info, &mchip_cmd); + mips_ejtag_drscan_8_out(ejtag_info, MCHP_DE_ASSERT_RST); /* select ejtag tap */ mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP); -- cgit v1.2.3