From: Florian Fainelli <f.fainelli@xxxxxxxxx> On Fri, 4 Oct 2024 22:01:55 -0700, Sam Edwards <cfsworks@xxxxxxxxx> wrote: > The `cpu-release-addr` property is relevant only when the "spin-table" > enable method is used. It is the physical address where the bootloader > expects Linux to write the secondary CPU entry point's physical address. > On this platform, only the CFE bootloader uses this method: U-Boot uses > PSCI instead. > > CFE actually walks the FDT to learn this address, so we're free to put > it wherever we want. We only need to make sure that it goes in a > reserved-memory block so that writing to it during early boot does not > risk conflicting with an unrelated memory allocation: this was not done. > > Since the previous patch reserved the first page of memory for CFE's > secondary-CPU init stub, which is actually much smaller than a page, > just put this address at the end of that page and it shall be so > protected. > > Signed-off-by: Sam Edwards <CFSworks@xxxxxxxxx> > --- Applied to https://github.com/Broadcom/stblinux/commits/devicetree-arm64/next, thanks! -- Florian
