Samsung Exynos 7870 Octa
Samsung Exynos 7870 Octa is a mobile SoC announced by Samsung in 2016. It is manufactured using a 14nm process technology. The chip powers several low-end devices.
Devices
 | |
| Manufacturer | Samsung |
|---|---|
| Name | Exynos 7870 |
| Architecture | aarch64 |
| CPU | 8x ARM Cortex-A53 @ 1.6GHz |
| GPU | ARM Mali-T830 MP1 |
| Year | 2016 |
| Process | 14nm |
| Mainline | yes |
| Community Page | https://gitlab.com/exynos7870-mainline |
| Components | |
| CPU |
Works |
| UART |
Broken |
| Storage |
Works |
| USB |
Works |
| Display |
Partial |
| GPU |
Works |
| Pinctrl |
Works |
| I²C |
Works |
| SPI |
Broken |
| Audio |
Broken |
| Video |
Broken |
| Thermal |
Broken |
| Modem |
Broken |
| GPS |
Broken |
| Camera |
Broken |
| Suspend | |
| Device | Codename | Mainline |
|---|---|---|
| Samsung Galaxy A2 Core | samsung-a2corelte | Y |
| Samsung Galaxy A3 (2017) | samsung-a3y17lte | N |
| Samsung Galaxy A6 (2018) | samsung-a6lte | P |
| Samsung Galaxy J5 2017 | samsung-j5y17lte | |
| Samsung Galaxy J6 (2018) | samsung-j6lte | N |
| Samsung Galaxy J7 (2016) | samsung-jxelte | |
| Samsung Galaxy J7 Prime | samsung-on7xelte | Y |
| Samsung Galaxy J7 Pro | samsung-j7y17lte | N |
| Samsung Galaxy Tab A 2016 (SM-T580) | samsung-gtaxlwifi | N |
Contributors
Notes
Display
There isn't any support for DECON and DSI yet, so panel drivers aren't a thing. However, display is known work with simple-framebuffer with most devices.
Wi-Fi
Wi-Fi behaves very erratically (practically unusable) when the SDIO is probed in DMA mode. The driver fails to communicate with the SDIO, reporting timeout errors. As a workaround, the SDIO is forced to be probed in PIO mode.
Modem
Modem is known to work with an experimental out-of-tree driver developed by sleirsgoevy.