MediaTek Helio G99 (MT6789/MT8781)
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(Redirected from Mediatek MT6789)
|  Helio G99 | |
| Manufacturer | MediaTek | 
|---|---|
| Name | Helio G99 | 
| Architecture | aarch64 | 
| CPU | 2x 2.2 GHz ARM Cortex-A76 6x 2.0 GHz ARM Cortex-A55 | 
| GPU | ARM Mali-G57 MC2 | 
| Year | 2022 | 
| Process | 6nm | 
| Mainline | partial | 
| CPU SMP (bring up secondary CPU cores), CPU frequency scaling, CPUidle | Partial | 
|---|---|
| UART | Works | 
| Storage eMMC, SD cards, UFS, ... | Works | 
| USB | Works | 
| Display | Partial | 
| GPU | Works | 
| Pinctrl | Works | 
| I²C | Works | 
| SPI Serial Peripheral Interface | Works | 
| Audio | Broken | 
| Video Hardware-accelerated video de/encoding | Broken | 
| Thermal | Works | 
| WiFi | Broken | 
| Bluetooth | Broken | 
| Modem Calls, SMS, Internet | Broken | 
| GPS | Broken | 
| Camera | Broken | 
| Suspend | Broken | 
The MediaTek Helio G99 is a mid-range SoC for tablets and gaming smartphones released in 2022. Two variants exist, MT6789 and MT8781, which are very similar and can use the same dts.[1]
Devices
MT6789
| Device | Codename | Category | Booting | 
|---|---|---|---|
| LincPlus T4 | lincplus-t4 | No | |
| Minimal Phone | MP01 | No | |
| Teclast T50 Max | teclast-t50max | No | |
| Teclast T65 Max | teclast-t65max | No | |
| Tecno Pova 6 | tecno-li7 | ||
| Volla Phone X23 | volla-vidofnir | No | |
| Xiaomi Redmi Note 13 Pro (4G) | xiaomi-emerald | Yes | 
MT8781
| Device | Codename | Category | Booting | 
|---|---|---|---|
| Lenovo Tab Plus | lenovo-tb351fu | No | |
| Xiaomi Redmi Pad | xiaomi-yunluo | No | 
Mainline Status:
Mainline fork
A close-to-mainline fork is developed for this SoC here: *link*
SMP
Only 6 cores are working for now.
USB
Works at both device/host modes. But dual-role mode is broken.
Display
GPU works. Only simple-framebuffer for now.