Hi
We are evaluating QCA4020 for a new design where is is used as a SDIO slave
In the datasheet we read that a SDIO2.0 slave interface is provided but we found qapis to use QCA402 as a SDIO master (see qapi_master_sdcc.h) but we haven't found qapis to use it as a slave.
We don't want to adopt HTC protocol because we prefer to use our own protocol
Is it possible to use QCA4020 as an SDIO slave with our own protocol
Thanks in advance
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QCA402X uses its own mbox hardware for SDIO slave. HTC layer includes the handling of these hardware specific registers.
Due to which SDIO master API are exposed and we dont support customer protocol layer for SDIO slave.
Incase of using the HTC protocol for SDIO slave communication on QCA402x, Kinldy refer to "Section: 8 HTC demo" from document "80-YA121-140 QCA402x (CDB2x) Development Kit User Guide"