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Mon, 27 Jan 2020 13:39:44 -0800 (PST) To: U-Boot Mailing List From: Sean Anderson Subject: [PATCH] riscv: Remove unnecessary instruction Autocrypt: addr=seanga2@gmail.com; prefer-encrypt=mutual; keydata= mQENBFe74PkBCACoLC5Zq2gwrDcCkr+EPGsT14bsxrW07GiYzQhLCgwnPdEpgU95pXltbFhw 46GfyffABWxHKO2x+3L1S6ZxC5AiKbYXo7lpnTBYjamPWYouz+VJEVjUx9aaSEByBah5kX6a lKFZWNbXLAJh+dE1HFaMi3TQXXaInaREc+aO1F7fCa2zNE75ja+6ah8L4TPRFZ2HKQzve0/Y GXtoRw97qmnm3U36vKWT/m2AiLF619F4T1mHvlfjyd9hrVwjH5h/2rFyroXVXBZHGA9Aj8eN F2si35dWSZlIwXkNu9bXp0/pIu6FD0bI+BEkD5S7aH1G1iAcMFi5Qq2RNa041DfQSDDHABEB AAG0K1NlYW4gR2FsbGFnaGVyIEFuZGVyc29uIDxzZWFuZ2EyQGdtYWlsLmNvbT6JAVcEEwEK AEECGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4ACGQEWIQSQYR1bzo1I0gPoYCg+6I/stKEQ bgUCXT+S2AUJB2TlXwAKCRA+6I/stKEQbhNOB/9ooea0hU9Sgh7PBloU6CgaC5mlqPLB7NTp +JkB+nh3Fqhk+qLZwzEynnuDLl6ESpVHIc0Ym1lyF4gT3DsrlGT1h0Gzw7vUwd1+ZfN0CuIx Rn861U/dAUjvbtN5kMBqOI4/5ea+0r7MACcIVnKF/wMXBD8eypHsorT2sJTzwZ6DRCNP70C5 N1ahpqqNmXe0uLdP0pu55JCqhrGw2SinkRMdWyhSxT56uNwIVHGhLTqH7Q4t1N6G1EH626qa SvIJsWlNpll6Y3AYLDw2/Spw/hqieS2PQ/Ky3rPZnvJt7/aSNYsKoFGX0yjkH67Uq8Lx0k1L w8jpXnbEPQN3A2ZJCbeMuQENBF0/k2UBCADhvSlHblNc/aRAWtCFDblCJJMN/8Sd7S9u4ZRS w1wIB4tTF7caxc8yfCHa+FjMFeVu34QPtMOvd/gfHz0mr+t0PiTAdDSbd6o7tj+g5ylm+FhT OTUtJQ6mx6L9GzMmIDEbLxJMB9RfJaL2mT5JkujKxEst6nlHGV/lEQ54xBl5ImrPvuR5Dbnr zWQYlafb1IC5ZFwSMpBeSfhS7/kGPtFY3NkpLrii/CF+ME0DYYWxlkDIycqF3fsUGGfb3HIq z2l95OB45+mCs9DrIDZXRT6mFjLcl35UzuEErNIskCl9NKlbvAMAl+gbDH275SnE44ocC4qu 0tMe7Z5jpOy6J8nNABEBAAGJATwEGAEKACYWIQSQYR1bzo1I0gPoYCg+6I/stKEQbgUCXT+T ZQIbDAUJAeEzgAAKCRA+6I/stKEQbjAGB/4mYRqZTTEFmcS+f+8zsmjt2CfWvm38kR+sJFWB vz82pFiUWbUM5xvcuOQhz698WQnIazbDGSYaOipyVNS52YiuYJDqMszzgw++DrcSuu0oRYWN EWCkJjxMqjGg8uY0OZ6FJG+gYRN5wMFErGfV1OqQ7l00FYA9OzpOEuW9PzPZEutFnAbbh77i zvxbQtT7IJCL24A4KutNYKmWg98im4mCzQcJCxE86Bv69ErLVPUyYbp4doLadScilXlvkkjL iq1wOt3rRzOuw+qnWVgWGBPxdDftz0Wck941tYF9XE0aMgkf4o1sGoDZFUFPCQdfEYPzzV7O S5hN3/mP5UeooFHb Message-ID: <94b5b51d-6883-2ec6-9d7c-9081512dba0a@gmail.com> Date: Mon, 27 Jan 2020 16:39:44 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 Content-Language: en-US X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.26 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.101.4 at phobos.denx.de X-Virus-Status: Clean The add instruction on risc-v can have any three sources and targets, so there is no need for an intermediate mov. Signed-off-by: Sean Anderson Reviewed-by: Rick Chen Reviewed-by: Bin Meng --- arch/riscv/cpu/start.S | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S index 1a55b7d570..365163ad19 100644 --- a/arch/riscv/cpu/start.S +++ b/arch/riscv/cpu/start.S @@ -359,9 +359,8 @@ relocate_secondary_harts: call_board_init_r: jal invalidate_icache_all jal flush_dcache_all - la t0, board_init_r - mv t4, t0 /* offset of board_init_r() */ - add t4, t4, t6 /* real address of board_init_r() */ + la t0, board_init_r /* offset of board_init_r() */ + add t4, t0, t6 /* real address of board_init_r() */ /* * setup parameters for board_init_r */