From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Viktorin Date: Tue, 1 Aug 2017 13:07:11 +0200 Subject: [Buildroot] Patch: new board Socrates Cyclone 5 In-Reply-To: <20170801100248.smfxvyhxk624nnwq@ed> References: <20170730151502.6e99d720@windsurf.lan> <20170801075456.ir2ubcdo2h3n5r5l@ed> <20170801105303.48d9fcb3@windsurf.home> <20170801100248.smfxvyhxk624nnwq@ed> Message-ID: <20170801130711.16efdcf0.viktorin@rehivetech.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On Tue, 1 Aug 2017 12:02:48 +0200 Lionel Flandrin wrote: > On Tue, Aug 01, 2017 at 10:53:03AM +0200, Thomas Petazzoni wrote: > > Hello, > > > > On Tue, 1 Aug 2017 09:54:56 +0200, Lionel Flandrin wrote: > > > > > Can I access this preloader.bin somewhere? I could check if there's > > > anything obviously special about it. > > > > The preloader.bin is part of the patch that Micha? sent: > > > > https://patchwork.ozlabs.org/patch/795350/ > > Ah, I missed that, thank you for pointing it out. > > It's definitely a mkpimage file. A simple way to validate that is to > check offset 0x40: > > @0x40: [41 53 30 31] Magic ("AS01") > @0x44: [00] Version (v0 for Cyclone V) > @0x45: [00] Flags > @0x46: [48 25] Program length in words, so 38176B > @0x48: [00 00] Not used ("spare") > @0x4a: [62 01] Header checksum > > Then at the end of the file you have a 4 byte CRC which I haven't > bothered to validate. > > So nothing out of the ordinary as far as I can tell. In particular I > can't see anything ressembling a cryptographic signature at the > beginning or end of the file. Looks like a regular u-boot SPL to me. > > I can't really say more about it, I don't have a Cyclone V board at > the moment. My advice would be to validate that the SPL generated by Hi, I've got a Socrates Cyclone V available and so I am able to test. If there are any patches to test, I can probably help. Regards Jan [...] > > > And the very reason why I opened up this thread is because it's not > > great to have pre-built bootloader images in the Buildroot tree. > > I agree completely. > > > Best regards, > > > > Thomas > -- Jan Viktorin E-mail: Viktorin at RehiveTech.com System Architect Web: www.RehiveTech.com RehiveTech Brno, Czech Republic