[PATCH v1 0/5] add support for Apalis iMX8 1300MHz version

Fabio Estevam festevam at gmail.com
Tue Dec 17 11:55:45 CET 2024


On Wed, Dec 11, 2024 at 9:20 AM Stefan Eichenberger <eichest at gmail.com> wrote:
>
> This patch series adds support for the Apalis iMX8, which utilizes the
> industrial 1300MHz version of the iMX8 SoC. Additionally, it includes
> minor cleanups that do not affect functionality.
>
> First, the series adds support for the new Product IDs (PIDs) found in
> the configuration block of the Apalis iMX8. The primary difference is
> that this version uses the industrial SoC, which features lower CPU and
> GPU frequencies compared to the automotive variant we used before.
>
> Second, the series extends support to this new SoC. During testing, we
> observed that the cpufreq driver did not account for the reduced CPU
> frequencies, despite enforcement by the System Controller Firmware
> (SCFW). This mismatch led to discrepancies between the frequencies
> reported by the cpufreq driver and those actually set. We have also
> updated the GPU to operate at the correct frequencies, as the SCFW does
> not enforce these limits. Previously, this caused the GPU to overclock
> to an unsupported frequency, as documented in the datasheet "i.MX
> 8QuadMax Industrial Applications Processors" (IMX8QMIEC).
>
> This patch series depends on the following patch and should be merged
> only after it has been applied:
> https://lore.kernel.org/u-boot/20241125174911.70723-1-ivitro@gmail.com/
>
> Stefan Eichenberger (5):
>   toradex: tdx-cfg-block: set apalis imx8dxp to always disabled
>   toradex: tdx-cfg-block: increase indentation for longer defines
>   toradex: tdx-cfg-block: add new apalis imx8 pids
>   toradex: apalis-imx8: simplify module version handling
>   imx: mach: imx8: fdt: set correct frequencies for the industrial SoC

Applied all, thanks.


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