[PATCH 0/2] AM64: Tick timer fixes
Nishanth Menon
nm at ti.com
Mon Mar 7 14:41:14 CET 2022
On 14:50-20220307, Vignesh Raghavendra wrote:
> Patch 1 switches AM64 to use GTC as system timer at A53 SPL/U-boot
> stage as done in other TI K3 platforms
Minor nuance clarification:
We don't use System timer (aka GTC) directly. System timer[1] feeds the
armv8 per cpu timer[2] - and the per-cpu timer is what we use.
Will be good to fixup the commit messages and $subject accordingly.
> Patch 2 corrects DM timer freq to be 200MHz (used at R5 SPL stage)
>
> Vignesh Raghavendra (2):
> configs: am64x_evm_a53_defconfig: Switch to GTC as tick timer
> ARM: dts: k3-am642: Fix correct timer frequency
>
> arch/arm/dts/k3-am642-evm-u-boot.dtsi | 2 +-
> arch/arm/dts/k3-am642-sk-u-boot.dtsi | 2 +-
> configs/am64x_evm_a53_defconfig | 3 ---
> 3 files changed, 2 insertions(+), 5 deletions(-)
>
> --
> 2.35.1
>
[1] https://developer.arm.com/documentation/102379/0000/System-Counter?lang=en
[2] https://developer.arm.com/documentation/den0024/a/Multi-core-processors/Multi-processing-systems/Timers
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
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