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authorNick Hu <nickhu@andestech.com>2019-05-30 15:01:17 +0800
committerPaul Walmsley <paul.walmsley@sifive.com>2019-06-11 08:04:26 -0700
commitd0e1f2110a5eeb6e410b2dd37d98bc5b30da7bc7 (patch)
tree9bfb7c63d1ea6a48b48a6bd222dc472835abf261 /arch/riscv/boot
parent405945588feedac8d7609113de9c62e72575a0ef (diff)
downloadlinux-d0e1f2110a5eeb6e410b2dd37d98bc5b30da7bc7.tar.bz2
riscv: Fix udelay in RV32.
In RV32, udelay would delay the wrong cycle. When it shifts right "UDELAY_SHIFT" bits, it either delays 0 cycle or 1 cycle. It only works correctly in RV64. Because the 'ucycles' always needs to be 64 bits variable. Signed-off-by: Nick Hu <nickhu@andestech.com> Reviewed-by: Palmer Dabbelt <palmer@sifive.com> [paul.walmsley@sifive.com: fixed minor spelling error] Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv/boot')
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