From 378567da4e40a31efed349fbe68deebd14079b94 Mon Sep 17 00:00:00 2001
From: Øyvind Harboe <oyvind.harboe@zylin.com>
Date: Fri, 1 Apr 2011 00:00:39 +0200
Subject: 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>
---
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);
--
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