[PATCH v2] clk: spacemit: k3: add 1.8 GHz PLL5 and PLL8 rates

[Aurelien Jarno]

Hi Troy,

On 2026-08-10 16:46, Troy Mitchell wrote:
> K3 boot firmware configures the C2 and C3 CPU clock domains at
> 1.8 GHz. PLL5 feeds C2 and PLL8 feeds C3, but their rate tables
> currently contain only the 2 GHz overclocking operating point.
> 
> Add the nominal 1.8 GHz configuration as the first entry in both
> tables. This lets determine_rate() and set_rate() select the firmware
> operating point while retaining 2 GHz as a supported overclocking rate.
> 
> Signed-off-by: Troy Mitchell <troy.mitchell at linux.spacemit.com>
> ---
> The related U-Boot change is available at:
> https://github.com/spacemit-com/uboot-2022.10/commit/fb95cf3d848b771c61b5a1b3e5cbbee223faf352
> ---
> Changes in v2:
> - Drop "clk: spacemit: re-enable PLLs after init"; the PLL init issue
>   will be handled in a separate series.
> - Send the K3 PLL5 and PLL8 1.8 GHz rate-table update as a standalone
>   patch.
> - Clarify that 1.8 GHz is nominal and 2 GHz is an overclocking rate.
> - Link to v1: https://patch.msgid.link/20260804-k3-pll5-pll8-1800mhz-v1-0-a3a75866ce32@linux.spacemit.com

This make sense and looks good:

Reviewed-by: Aurelien Jarno <aurelien at aurel32.net>
Tested-by: Aurelien Jarno <aurelien at aurel32.net>

I wonder if it should be backported to stable, as users will deploy 
newer firmware.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien at aurel32.net                     http://aurel32.net