Xiaomi Mi Pad (xiaomi-mocha)
![]() The front of Xiaomi Mi Pad | |
Manufacturer | Xiaomi |
---|---|
Name | Mi Pad |
Codename | xiaomi-mocha |
Released | 2014 |
Hardware | |
Chipset | Nvidia Tegra K1 (T124) |
CPU | 4x 2.2 GHz Cortex-A15 |
GPU | Nvidia GK20A (192-core Kepler) |
Display | 1536 x 2048 LCD IPS |
Storage | 16 GB / 64 GB |
Memory | 2 GB |
Architecture | armv7 |
Software | |
Original software | Android |
Original version | 4.4.4 |
postmarketOS | |
Category | testing |
Pre-built images | no |
Mainline | partial |
Flashing |
No data |
---|---|
USB Networking |
Broken |
Internal storage |
No data |
SD card |
No data |
Battery |
No data |
Screen |
Works |
Touchscreen |
Broken |
Multimedia | |
3D Acceleration |
No data |
Audio |
No data |
Camera |
No data |
Camera Flash |
No data |
IR TX |
No data |
Connectivity | |
WiFi |
No data |
Bluetooth |
No data |
GPS |
No data |
Miscellaneous | |
FDE |
No data |
USB OTG |
No data |
HDMI/DP |
No data |
Sensors | |
Accelerometer |
No data |
Magnetometer |
No data |
Ambient Light |
No data |
Proximity |
No data |
Hall Effect |
No data |
Haptics |
No data |
Barometer |
No data |
Power Sensor |
No data |
This device is based on the Tegra K1. See the SoC page for common tips, guides and troubleshooting steps |
Contributors
- CEllenvia
Users owning this device
- CEllenvia (Notes: 64Giga, Atmel touchpad)
- IonAgorria (Notes: Stock - OK)
How to enter flash mode
Hold
+ until "FASTBOOT" shows on screenInstallation
$ pmbootstrap initfs hook_add debug-shell
$ pmbootstrap install
$ pmbootstrap flasher flash_rootfs --partition userdata # Flashing to the system partition fails with (remote: '(InvalidSize)'), May cause by 2 system partition.
$ pmbootstrap flasher flash_kernel
Situations
Mainline in progress. Based on existing work. [1]
This device comes with a interesting boot package method, which dt.img isn't QCDT style at all. Instead, it just use dtb file as dt.img.
Below are Issues in downstream kernel and only for historical purpose.
after some random defconfig edit, the situation fell back.( w/o debug-shell it will hang up and watchdog will perform reboot) try to fall back to defconfig which cause kernel crash.
the dt.img is still blob[2] (extract from lineage), discussed in matrix and result is that I need a special dtbTool for this device.[3] I dont have experience with this.
Nearly all /sys except /sys/fs will disappear after continue booting with pmos_continue_boot, but it can be remounted.
Screen can work ( tested by cat random to device)
Mainline Status
Function | Hardware | Status | Info |
---|---|---|---|
Boot | - | Y | Boot with exists 5.4 fork. |
Display | Sharp LQ079L1SX01 | Y | - |
Touchscreen | Atmel mXT1664T2-C2U/Synaptics ? | N | There are two kinds of touchscreen, which for my device is mXT1664T2-C2U, and now its broken. |
Onscreen RGB LED | Texas Instruments(National Semiconductor) LP5521 | - | - |
Backlight LED | Texas Instruments LP8556 | Y | - |
Charger IC | Texas Instruments BQ24192 | - | - |
Battery Management | Texas Instruments BQ27520-G4 | - | - |
Wi-Fi, BT & FM | Cypress(Broadcom) CYW4354XKUBG | - | - |
SDCard | Onsemi CM1624 | - | - |
GPU | NVIDIA GK20A | - | - |
Audio | NXP TFA9890 | - | newly added, cant be found in exists works. https://lore.kernel.org/all/20220602164504.261361-1-amartinz@shiftphones.com/T/ |
See also
The Kernel Xiaomi Official released: [4]
pmaports!3735 Initial merge request