cache: l2x0: Fix incorrect behavior if the latency is 1 cycle
According to the PL310 TRM, 0 in the latency fields(setup/read/write) indicates 1 cycle of latency for Tag and Data RAM latency control registers. If we want to set 1 cycle of latency, we need to clear the field actually. The TRM is as below: https://developer.arm.com/documentation/ddi0246/h/programmers-model/register -descriptions/tag-and-data-ram-latency-control-registers
Signed-off-by: Haifeng Li haifeng.li@timesintelli.com
drivers/cache/cache-l2x0.c | 6 ++++++ 1 file changed, 6 insertions(+)
please ignore this email. I will re-send it with patch inline.
Thanks, Haifeng. ------------------------------------------------------------------ From:Haifeng Li haifeng.li@timesintelli.com Sent At:2022 Mar. 18 (Fri.) 19:28 To:dinguyen dinguyen@kernel.org; u-boot u-boot@lists.denx.de Cc:Haifeng Li haifeng.li@timesintelli.com Subject:cache: l2x0: Fix incorrect behavior if the latency is 1 cycle
According to the PL310 TRM, 0 in the latency fields(setup/read/write) indicates 1 cycle of latency for Tag and Data RAM latency control registers. If we want to set 1 cycle of latency, we need to clear the field actually. The TRM is as below: https://developer.arm.com/documentation/ddi0246/h/programmers-model/register -descriptions/tag-and-data-ram-latency-control-registers
Signed-off-by: Haifeng Li haifeng.li@timesintelli.com
drivers/cache/cache-l2x0.c | 6 ++++++ 1 file changed, 6 insertions(+)
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