Drivers/OptionRomPkg: Add Renesas uPD720202 firmware loader #225
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Add the Renesas uPD720202 firmware loader based on Ard Biesheuvel's patch at https://edk2.groups.io/g/devel/topic/patch_optionrompkg_add/30905893# The uPD72020x USB 3.0 chipset family supports two modes of operation. Either the firmware is stored in an external EEPROM chip and downloaded into the chipset at boot time, or it must be uploaded into the chipset by the operating system / driver. The second option always works and overrides any firmware stored into the EEPROM of the card. More technical details are discussed in a blog post at https://mjott.de/blog/881-renesas-usb-3-0-controllers-vs-linux. Signed-off-by: Rebecca Cran <[email protected]>
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leiflindholm
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Oct 23, 2024
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Add the Renesas uPD720202 firmware loader based on Ard Biesheuvel's patch at
https://edk2.groups.io/g/devel/topic/patch_optionrompkg_add/30905893#
The uPD72020x USB 3.0 chipset family supports two modes of operation. Either the firmware is stored in an external EEPROM chip and downloaded into the chipset at boot time, or it must be uploaded into the chipset by the operating system / driver.
The second option always works and overrides any firmware stored into the EEPROM of the card.
More technical details are discussed in a blog post at https://mjott.de/blog/881-renesas-usb-3-0-controllers-vs-linux.