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27-Dec-2021 |
Adrian Chadd <adrian@FreeBSD.org> |
qcom_tcsr: add initial top control and status register (TCSR) support The Qualcomm TCSR is some top level glue between multiple IP blocks, both for doing configuration of said IP blocks, some IPC between them (mostly between multiple execution environments - eg trustzone and non-TZ), and interrupt status bits for them. However, for the IPQ4018/IPQ4019, it only is used as a small subset of IP block configuration. As for what it actually gets used as for other Qualcomm chipsets? Well, that'll have to wait. It's a bit of a mess in linux and openwrt. See, every different SoC support branch ends up with some different TCSR code for it. So instead, I'm going to land a single TCSR driver that I'm going to use for the IPQ4018/IPQ4019. When I add the next chipset, I'll figure out how to organise things so there's a single TCSR driver that works for multiple platforms.
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