Requesting 360 M5 (IPQ4018) and M50 (ath79) support

Here is brief specs for M5:

CPU:IPQ4018,ARM Cortex A7 4 cores@717Mhz

PHY:QCA8075

FLASH:25Q256JVFQ 32MB

RAM:W632GU6NB-12

2.4G:
Integrated high-performance 2.4 GHz PA, LNA with bypass, and T/R switch
Fully-matched input and output
LNA with integrated bypass mode
Integrated positive slope power detector
Transmit gain: 32 dB
Receive gain: 16 dB
Small QFN (16-pin, 2.5 x 2.5 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

5G:
Integrated high-performance 5 GHz PA,LNA with bypass, and SPDT
Fully matched input and output
Integrated, positive slope power detector
Transmit loopback mode
Transmit gain: 32 dB
Receive gain: 14 dB
Output power: +21 dBm, @3% (–30 dB) DEVM, MCS7, HT40
Output power: +20 dBm @ 1.8% (–35 dB) DEVM, MCS9, VHT80
Direct connection to battery with 5 V nominal supply voltage
Small MCM (12-pin, 2.0 x 2.0 x 0.6 mm) package (MSL3, 260 °C per JEDEC J-STD-020)

Here is brief specs for M50:
CPU:MIPS 74Kc QCA9563@750Mhz, 2.4G Integrated
5G:QCA9886
Flash:16MB

Detailed PCB screenshots: https://bbs.360.cn/thread-15817345-1-1.html

Althongh flashes are too small for the current versions of Openwrt, I really would like anyone to give a chance for these devices.

Find the serial console, post the boot log.
Check if boot loader's interruptable.

16mb flash is fine, for now, there's however a 8mb flash warning.

At this point you're the only one owning this device, so the onus of developing OpenWrt support for this device would be on you… There generally is no one waiting for support requests, just to go out and buy an according device with their own money and then spending somewhere between a very long rainy weekend and several weeks to port OpenWrt to this device.