Category:Samsung Exynos
This page only contains some info, data and links regarding mainline on Exynos SoCs. If you want to mainline a device please follow the Mainlining guide.
Most Exynos ARM SoCs released up until 2014 are well supported in mainline linux. For arm64 Samsung rarely tried getting the code into mainline linux, and so very few SoCs are supported. The arm64 Exynos SoCs that are at least somewhat supported include:
- Exynos 5433
- Exynos 7 (some early version of Exynos 7420 [1])
- Exynos 7885
- Exynos 850 (also known as Exynos 3830)
- Exynos Auto v9
- Tesla FSD
- Google_Tensor SoC (named Exynos 9845 by Samsung)
Unfortunately Samsung does not release user manuals for their SoCs anymore. If you have an Exynos arm64 SoC that you want to mainline then a good start is to study the devicetree and drivers for another already supported SoC and compare with the vendor kernel for that SoC, and then look at devicetree and drivers in vendor kernel for your SoC and try to "translate" it into mainline-acceptable format with the other SoC as reference. A good reference might be Exynos850, and it's vendor kernel. When writing your mainline dts (and drivers), start small with just bare essentials and some way to get output from the device (pstore/ramoops, simple-framebuffer, serial debugging), and make sure that works before adding more parts.
Samsung's stock bootloader expects devicetree in a certain format, and modifies the device tree before booting kernel. This is pretty inconvenient when testing mainline kernels, and so it is a good idea to use a secondary bootloader and boot mainline from it. U-boot does not support modern Exynos SoCs, but there are some other small bootloaders/kernel wrappers that can be used:
- minimal_sboot_wrapper, wrapper to make it possible to boot mainline kernels with Samsung's Sboot bootloader (made for Exynos 7885)
- uniloader, inspired by minimal_sboot_wrapper but with support for more Exynos variants and with more features
Devices
Device | Codename | Mainline |
---|---|---|
Samsung Galaxy Note 8 (Exynos) | samsung-greatlte | |
Samsung Galaxy S8 | samsung-dreamlte, samsung-dream2lte | P |
Specifications
- 4x 2.3 GHz Mongoose M2 & 4x 1.7 GHz Cortex-A53
- Mali-G71 MP20
Downstream status
Galaxy S8 has a working port.
Mainline status
Boots, pinctrl and pstore works. WIP
More information
Other SoCs
- 4212: Samsung Gear 1 (support dropped from mainline kernel)
- 4415 (support dropped from mainline kernel)
- 5260: SM-N750 Galaxy Note 3 Neo
- 5410
- 5800
Samsung SoCs Page
SoC | Codenames | Arch | Year | Mainline |
---|---|---|---|---|
Samsung Exynos 3250 | armv7 | 2014 | Yes | |
Samsung Exynos 3475 | armv7 | 2015 | Yes | |
Samsung Exynos 4210 | armv7 | 2011 | Yes | |
Samsung Exynos 4212 | armv7 | 2012 | Yes | |
Samsung Exynos 4412 | armv7 | 2012 | Yes | |
Samsung Exynos 4415 | armv7 | 2014 | No | |
Samsung Exynos 5250 | armv7 | 2012 | Yes | |
Samsung Exynos 5420 | armv7 | 2013 | Yes | |
Samsung Exynos 5422 | armv7 | 2014 | Yes | |
Samsung Exynos 5433 | aarch64 | 2014 | Yes | |
Samsung Exynos 7870 | aarch64 | 2016 | Yes | |
Samsung Exynos 8895 | aarch64 | 2017 | Yes | |
Samsung Exynos 9110 | aarch64 | 2017 | No | |
Samsung Exynos 9810 | aarch64 | 2017 | No | |
Samsung Exynos 990 | aarch64 | 2020 | Yes |
See also
- https://exynos.wiki.kernel.org
- There are some article that may help to port mainline scattered around the device which has gotten mainline support.
- User:knuxify provides an article[2] about how to bring up the display of lt01wifi, which may help to those who want to port dsi panels.
- PabloPL's repository contains branches related to Exynos 7420, 7580, 8890
- dsankouski's repository contains branches related to Exynos 7880
- VDavid003's repository contains branches related to Exynos 7885
- ivoszbg's repository contains branches related to Exynos 8895
- krzk's repository contains branches with several vendor (Samsung) kernel sources for many Exynos SoCs
References
Pages in category "Samsung Exynos"
The following 6 pages are in this category, out of 6 total.