PicoRio Linux RISC-V SBC is an open-source alternative to Raspberry Pi board

Re:PicoRio Linux RISC-V SBC is an open-source alternative to... by neilpanchal on Friday September 04, 2020 @07:41PM (#24380050)

Also, its not possible to write your own DSI/MIPI drivers for a phone LCD that you can buy on eBay, partly for not having the DSI/MIPI specification unless you pay upwards of thousands of dollars a year and Raspberry Pi doesn't allow access to the DSI/MIPI HAL layer - its part of the SOC which Broadcom controls.

About the only way to make a device with an LCD is to use the built-in HDMI.

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Re:PicoRio Linux RISC-V SBC is an open-source alternative to... by stefan_ on Friday September 04, 2020 @08:56PM (#24380517)

Nothing they can do about the specification. There is a DSI driver in the proprietary firmware, but there is also an open-source upstream version:

https://github.com/anholt/linux/wiki/Raspberry-Pi-and-other-...

This is a theme with the RPi. They generally implement new hardware in their proprietary firmware first, for lack of skills/time to do a proper upstream job of it (or the convience of copy-pasting some vendor code), then pay someone to develop an open-source driver. For example, here is a massive 80 patch series nearing merge for the new display pipeline in the RPi 4:

https://patchwork.freedesktop.org/series/73839/

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Re:PicoRio Linux RISC-V SBC is an open-source alternative to... by userbinator on Friday September 04, 2020 @10:16PM (#24380879)

partly for not having the DSI/MIPI specification unless you pay upwards of thousands of dollars a year

There is a little thing called Google... ;-)

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