From f6412d9c7b22ab25caec6be19317f0fc4a840fdd Mon Sep 17 00:00:00 2001 From: Spencer Oliver Date: Mon, 21 Dec 2009 16:33:03 +0000 Subject: MIPS: optimize pracc access remove unnecessary nops when accessing ejtag pracc general fastdata patch cleanup Signed-off-by: Spencer Oliver --- src/target/mips_ejtag.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'src/target/mips_ejtag.c') diff --git a/src/target/mips_ejtag.c b/src/target/mips_ejtag.c index 6f7baf01..bebad9ac 100644 --- a/src/target/mips_ejtag.c +++ b/src/target/mips_ejtag.c @@ -139,10 +139,8 @@ int mips_ejtag_step_enable(struct mips_ejtag *ejtag_info) MIPS32_MFC0(1,23,0), /* move COP0 Debug to $1 */ MIPS32_ORI(1,1,0x0100), /* set SSt bit in debug reg */ MIPS32_MTC0(1,23,0), /* move $1 to COP0 Debug */ + MIPS32_B(NEG16(5)), MIPS32_MFC0(1,31,0), /* move COP0 DeSave to $1 */ - MIPS32_NOP, - MIPS32_B(NEG16(7)), - MIPS32_NOP, }; mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \ @@ -165,10 +163,8 @@ int mips_ejtag_step_disable(struct mips_ejtag *ejtag_info) MIPS32_MTC0(1,23,0), /* move $1 to COP0 Debug */ MIPS32_LW(2,0,15), MIPS32_LW(1,0,15), + MIPS32_B(NEG16(13)), MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */ - MIPS32_NOP, - MIPS32_B(NEG16(15)), - MIPS32_NOP, }; mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \ @@ -230,10 +226,8 @@ int mips_ejtag_read_debug(struct mips_ejtag *ejtag_info, uint32_t* debug_reg) MIPS32_SW(2,0,1), MIPS32_LW(2,0,15), MIPS32_LW(1,0,15), + MIPS32_B(NEG16(12)), MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */ - MIPS32_NOP, - MIPS32_B(NEG16(14)), - MIPS32_NOP, }; mips32_pracc_exec(ejtag_info, ARRAY_SIZE(code), code, \ -- cgit v1.2.3