Xiaomi Mi Pad (xiaomi-mocha): Difference between revisions
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| There are two kinds of touchscreen, which for my device is mXT1664T2-C2U, and now its broken. | | There are two kinds of touchscreen, which for my device is mXT1664T2-C2U, and now its broken. | ||
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| | |Onscreen RGB LED | ||
| Texas Instruments(National Semiconductor) LP5521 | | Texas Instruments(National Semiconductor) LP5521 | ||
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| newly added, cant be found in exists works. https://lore.kernel.org/all/20220602164504.261361-1-amartinz@shiftphones.com/T/ | | newly added, cant be found in exists works. https://lore.kernel.org/all/20220602164504.261361-1-amartinz@shiftphones.com/T/ | ||
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== See also == | == See also == |
Revision as of 11:07, 26 December 2022
This device is marked as not booting.
Status: kernel compiles with android built dt.img, successfully boot but panic, debug in progress
Status: kernel compiles with android built dt.img, successfully boot but panic, debug in progress
![]() 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 4.4.4 |
postmarketOS | |
Category | testing |
Pre-built images | no |
Mainline | partial |
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
Known Issues
Mainline in progress. Based on existing work. [1]
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