Group: Hardware/Computers/Tablets
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! USB host | ! USB host | ||
! (mini)PCI(e) possible? | ! (mini)PCI(e) possible? | ||
| + | ! Minimum quantity required | ||
| + | | ? | ||
|- | |- | ||
! Texas instruments | ! Texas instruments | ||
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| {{yes}} | | {{yes}} | ||
| Seem not | | Seem not | ||
| + | | ? | ||
|- | |- | ||
! Texas instruments | ! Texas instruments | ||
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| {{yes}} | | {{yes}} | ||
| Seem not | | Seem not | ||
| + | | ? | ||
|- | |- | ||
! Allwinner Tech | ! Allwinner Tech | ||
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| ? | | ? | ||
| {{yes}} | | {{yes}} | ||
| + | | ? | ||
| ? | | ? | ||
|- | |- | ||
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| ? | | ? | ||
| {{yes}} | | {{yes}} | ||
| + | | ? | ||
| ? | | ? | ||
|- | |- | ||
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| <span style="background:red">bad(part of it is software, non-free and signed on all known devices)</span> | | <span style="background:red">bad(part of it is software, non-free and signed on all known devices)</span> | ||
| {{yes}} | | {{yes}} | ||
| + | | ? | ||
| ? | | ? | ||
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| ? | | ? | ||
| ? | | ? | ||
| − | | ? | + | | ? |
| + | | ? | ||
| + | |- | ||
| + | ! Freescale | ||
| + | ! I.MX6 | ||
| + | | | ||
| + | | unknown, was good on previous versions of the chip | ||
| + | | {{yes}} | ||
| + | | {{yes}} | ||
| + | | ? | ||
|} | |} | ||
Revision as of 06:35, 24 May 2013
John's braindump:
The FSF wants to do something to make a completely free tablet a reality.
An important step here is the video hardware. Some chipsets have free drivers, but rely on proprietary firmware. The FSF is considering a project to replace this proprietary firmware with free firmware.
1) We should choose a chipset that is very new, so that the product will still be useful for some time.
2) We should choose something that is used in many different products, if possible.
3) We should choose something that is present in products that have the best chance of being fully free otherwise. If it has a USB port, it can get free wifi that way, for example.
4) We should pursue better relations with manufacturers to get documentation at least, or in the best case to convince them based on our reverse engineering success to do the right thing from the beginning.
We are chatting about the project in #fsf-tablet on irc.oftc.net.
About Lima: https://fosdem.org/2013/schedule/event/operating_systems_open_arm_gpu/
comparaison of chipsets
Wifi
SOC
| Manufacturer | SOC | GPU | Bootloader status | USB host | (mini)PCI(e) possible? | Minimum quantity required | ? |
|---|---|---|---|---|---|---|---|
| Texas instruments | DM370(omap3 but higher speed) | Powervr | good(free software unsigned possible) | Yes | Seem not | ? | |
| Texas instruments | omap4 | Powervr | good(free software unsigned possible) | Yes | Seem not | ? | |
| Allwinner Tech | A31 | Powervr | ? | Yes | ? | ? | |
| Allwinner Tech | A10,A10s,A13,A20 | Mali | ? | Yes | ? | ? | |
| Samsung | Exynos 3 Single -> Exynos 5 dual | Mali | bad(part of it is software, non-free and signed on all known devices) | Yes | ? | ? | |
| Samsung | Exynos 5 Octa | Powervr | ? | ? | ? | ? | |
| Freescale | I.MX6 | unknown, was good on previous versions of the chip | Yes | Yes | ? |
