Tartarus changed the topic of #u-boot to: SOURCE MOVED TO https://source.denx.de/u-boot/u-boot.git / U-Boot v2021.07 is OUT / Merge Window is OPEN until 26 July 2021 / Release v2021.10 is scheduled for 04 October 2021 / http://www.denx.de/wiki/U-Boot / Channel archives at https://libera.irclog.whitequark.org/u-boot
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<apalos> anyone around that did the patches for risc-v boards in general ?
<apalos> the commit log for 47d73ba4f4a4 is a bit confusing
<apalos> Apparently we want a prior stage boot loader to hand us over the dtb, but we can't use the CONFIG_OF_PRIOR_STAGE??
<apalos> and anyone knows how CONFIG_OF_BOARD and CONFIG_OF_PRIOR_STAGE differ to begin with ?
<apalos> the core semantics seem identical, "someone else will provide me a dtb", so is there any real reason we need 2 discrete options?
<sjg1> apalos: Perhaps just need to set prior_stage_fdt_address correctly?
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<apalos> yea basically, you can have a board_fdt_blob_setup() that does that for you
<apalos> So I dont see an apparent reason for yet another Kconfig
<apalos> gonna go dig more
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<sjg1> apalos: Yes and once everything uses OF_SEPARATE, then OF_BOARD can go away?
<sjg1> apalos: Maybe a first (or second) step could be to move OF_BOARD out from being a choice and make it a standlone bool option, with all those boards moving to OF_SEPARATE instead
<apalos> yea I am not sure about that, you still need an option which ssay something along the lines of "someone else will give me my dtb"
<apalos> I know that this will cause potential problems with u-boot missing the control DTB part
<apalos> but I'll get to it after we get rid of options we dont need ;)
<sjg1> Yes you need the option, but it should override the DT that is there. OF_SEPARATE should always be enabled
<sjg1> So we get a u-boot.bin with a DT in it, but at runtime that DT is ignored because the prior stage provides it (of course if we know that we can package u-boot-nodtb.bin instead, but the point is that a DT is built within U-Boot)
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<apalos> sjg1: ok I figured out why RISC-V has the CONFIG_OF_PRIOR_STAGE as well
<apalos> you can configure it with CONFIG_OF_BOARD or CONFIG_OF_SEPERATE, in that case the code picks up the openSBI DTB
<apalos> reads the reserved memory node and fixups the U-Boot provided DTB
<apalos> while on the other case, it just blindly uses what was passed along
<apalos> Still I think we can get rid of one of the options
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<sjg1> apalos: OK
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