docs: add JMB585 kernel compatibility caution for Penta SATA HAT and Taco#1743
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akgnah merged 1 commit intoradxa-docs:mainfrom May 8, 2026
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…Taco Add caution note about Linux kernel commit ee95f3c affecting the JMB585 PCIe SATA controller. After this kernel update, users may need to add 'dtoverlay=pcie-32bit-dma-pi5' in /boot/firmware/config.txt for the Radxa Penta SATA HAT (and Taco SATA interfaces) to work properly. Ref: geerlingguy/raspberry-pi-pcie-devices#615 (comment)
akgnah
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May 8, 2026
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Summary
Add caution note about Linux kernel commit ee95f3c affecting the JMB585 PCIe SATA controller used in Radxa Penta SATA HAT and Taco carrier board.
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Details
Since Linux kernel commit ee95f3c, the JMB585 SATA controller may fail to initialize on Raspberry Pi 5 / CM5 platforms. Users need to add the following to
/boot/firmware/config.txt:Ref: geerlingguy/raspberry-pi-pcie-devices#615 (comment)