Date: Sat, 2 Jun 2012 08:21:06 -0700 From: Marcel Moolenaar <marcelm@juniper.net> To: "powerpc@freebsd.org" <powerpc@freebsd.org> Subject: [P2020] FreeBSD cannot enable 2nd core. Message-ID: <9F7F498C-22D3-4D6D-8242-019FB36B998A@juniper.net>
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All, I'm running into a weird issue where the 2nd core of a P2020 SoC isn't bein= g woken up by FreeBSD. If I manually frob the EEBPCR register from the U-Boot prom= pt I see that the second core is booting U-Boot (after which things go bad obviously= ). But from FreeBSD I don't seem to be able to get a kick. The only real differen= ce I see between U-Boot and FreeBSD is that in FreeBSD we need to program the BPTR r= egister to have the boot page mapped to where the kernel is loaded. But I have no r= eason to suspect that this is in any way related to why I can't bring the 2nd core u= p. BTW: The logic in FreeBSD worked fine on a P1020. Does anyone know of any erratas I should be concerned about or have had sim= ilar experiences they can share. Thanks, --=20 Marcel Moolenaar marcelm@juniper.net
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