ESP32-C6 SDIO download mode & ESP32-P4

[greengnu]

So the ESP32-C6 seems to have an SDIO download boot mode which isn't really documented and I'm interested whether the ESP32-P4's bootloader has some download mode in which it would forward a C6 binary to an SDIO connected ESP32-C6, so that the C6's UART or USB wouldn't need to be broken out in order to flash it but so that the flashing can be done through the P4 which is connected to the C6 via SDIO?