Qualcomm Snapdragon 650/652/653 (MSM8956/MSM8976)
| Manufacturer | Qualcomm |
|---|---|
| Name | MSM8976 |
| Codenames | Eldarion |
| Architecture | aarch64 |
| CPU |
4x(2x-MSM8956) 1.8 GHz Cortex A72 + 4x 1.4 GHz Cortex A53 |
| GPU | Adreno 510 |
| Year | 2016 |
| Process | 28nm |
| Mainline | partial |
| Community Page | https://github.com/msm8956-mainline |
| Components | |
| CPU |
Partial |
| UART |
Works |
| Storage |
Works |
| USB |
Partial |
| Display |
Works |
| GPU |
Works |
| Pinctrl |
Works |
| I²C |
Works |
| SPI | |
| Audio |
Broken |
| Video |
Broken |
| Thermal |
Works |
| WiFi |
Works |
| Bluetooth |
Works |
| Modem |
Partial |
| GPS | |
| Camera |
Broken |
| NPU | |
| Suspend |
Broken |
| Ethernet | |
SDM650/SDM652/SDM653 are Qualcomm SoCs released in 2016.
Devices
MSM8956
| Device | Codename | Mainline |
|---|---|---|
| Sony Xperia X | sony-suzu | P |
| Sony Xperia X Compact | sony-kugo | |
| Xiaomi Redmi Note 3 Pro | xiaomi-kenzo | P |
MSM8976
| Device | Codename | Mainline |
|---|---|---|
| BQ Aquaris X5 Plus | bq-gohan | |
| LeEco Le 2 | leeco-s2 | N |
| Samsung Galaxy Tab S2 8.0 LTE | samsung-gts28velte | |
| Samsung Galaxy Tab S2 9.7 LTE | samsung-gts210velte | |
| Samsung Galaxy Tab S2 9.7 Wifi | samsung-gts210vewifi |
CPU
8 cores are up and running with frequency scaling, not all possible frequencies are enabled due to missing power managment components.
Global clock controller (GCC)
Patch on mailing list:commit
GPU
It works just fine.
Audio
ADSP remoteproc wake up with MSM8953 pil adsp settings however attempt on bringing QDSP6 ends with -110 error following by watchdog kicking in and rebooting device.
WIFI/BT
Works fine with pronto-v3.
Camera
Platform data needs to be added.
Out of tree commit:
https://github.com/konradybcio/linux/commit/157b757e2cf6115fc0dc6b001a2d117a00525211
Venus
Platform data needs to be added.
Out of tree commit:
https://github.com/konradybcio/linux/commit/073879f8d732bdc92ee970c46b44945e07637be4
Needed workarounds
IOMMU: GPU secure contexts cannot be re-programmed so touching secure context ends with device panic and reboot.
Pinctrl: Definition for WCSS pins needs to be updated as base platform for porting(Loire) didn't use wcnss but Broadcom chip: commit
Regulators: Needed fix: commit
Power Domains: Voltage floor level regulators needs to be changed from RWSC/RWSM to SMPA type according to downstream DTS.
Also max_state should be changed from RPM_SMD_LEVEL_TURBO_HIGH to RPM_SMD_LEVEL_TURBO as during iris probe calling for highest state reset device.