APQ8064 MDP

Booting

 * Recovery: VolumeUp + Power
 * Fastboot: VolumeDown + Power

Building
Code and instructions for building Android are here.

If you want to build just the kernel:

make out/target/product/msm8960/boot.img

or without the Android build system:

make -C kernel O=../out/target/product/msm8960/obj/KERNEL_OBJ ARCH=arm CROSS_COMPILE=arm-eabi- msm8960_defconfig make -C kernel O=../out/target/product/msm8960/obj/KERNEL_OBJ ARCH=arm CROSS_COMPILE=arm-eabi- out/host/linux-x86/bin/acp -fp out/target/product/msm8960/obj/KERNEL_OBJ/arch/arm/boot/zImage out/target/product/msm8960/kernel out/host/linux-x86/bin/mkbootimg --kernel out/target/product/msm8960/kernel --ramdisk out/target/product/msm8960/ramdisk.img --cmdline "console=ttyHSL0,115200,n8 androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3" --base 0x80200000 --pagesize 2048 --ramdisk_offset   0x109c000 -z --output out/target/product/msm8960/boot.img.nonsecure openssl dgst -sha256 -binary out/target/product/msm8960/boot.img.nonsecure > out/target/product/msm8960/boot.img.sha256 openssl rsautl -sign -in out/target/product/msm8960/boot.img.sha256 -inkey device/qcom/common/qcom.key -out out/target/product/msm8960/boot.img.sig dd if=/dev/zero of=out/target/product/msm8960/boot.img.sig.padded bs=2048 count=1 dd if=out/target/product/msm8960/boot.img.sig of=out/target/product/msm8960/boot.img.sig.padded conv=notrunc cat out/target/product/msm8960/boot.img.nonsecure out/target/product/msm8960/boot.img.sig.padded > out/target/product/msm8960/boot.img

Partitions
major minor   #blocks  name 179       0   31162368 mmcblk0 179       1      65536 mmcblk0p1         /firmware 179       2        128 mmcblk0p2 179       3        256 mmcblk0p3 179       4        512 mmcblk0p4 179       5        512 mmcblk0p5 179       6        512 mmcblk0p6 179       7      10240 mmcblk0p7         kernel/boot.img 179       8        512 mmcblk0p8 179       9          1 mmcblk0p9 179      10       3072 mmcblk0p10 179      11       3072 mmcblk0p11 179      12     524288 mmcblk0p12        /system 179      13   12582912 mmcblk0p13        /user 179      14       8192 mmcblk0p14        /persist 179      15      65536 mmcblk0p15        /cache 179      16     262144 mmcblk0p16        /tombstones 179      17       1024 mmcblk0p17 179      18      10240 mmcblk0p18 179      19       3072 mmcblk0p19 179      20          8 mmcblk0p20 179      21          5 mmcblk0p21 179      22   17137647 mmcblk0p22 179      32    7761920 mmcblk1 179      33    7757824 mmcblk1p1

Power
echo 1 > /sys/module/pm8921_charger/parameters/disabled cat /sys/devices/platform/msm_ssbi.0/pm8921-core/pm8921-charger/power_supply/battery/{current,voltage}_now cat /sys/devices/platform/epm_adc/ads?_chan? However the EPM values seem to be nonsensical on the APQ8064, at least for the CPU cores (channels 0, 3, 5 and 7).
 * Disable USB charging:
 * Battery current and voltage:
 * EPM sensors can be read using the epmread tool or from sysfs:

Serial

 * The serial port /dev/ttyHSL0 is exposed (CMOS 1v8 levels, default 115200 8n1) via the dock connector on the bottom edge of the device. The supplied HDMI+2xUSB adapter can be easily hacked to access the necessary pins. (TODO: which pins are they?)

Links

 * APQ8064 MDP at Qualcomm Developer Network
 * BSquare
 * source code