On Wed, Mar 27, 2013 at 5:57 AM, Dirk Behme <dirk.be...@de.bosch.com> wrote:
> Some additional rethinking: I missed that we have a Linux kernel, too ;) > > c) It's the job of the Linux kernel to export the CPU revision to the VPU > library. In case the Linux kernel completely ignores what we are doing in > U-Boot and calculates the CPU revision itself (*), e.g. by something like > > http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-mx6/mm.c?h=imx_3.0.35_1.1.0&id=207f80453c77bc32e04b5fef863f6fe50a7fd1a8#n60 > > we can do anything in U-Boot. Independent of the VPU library. Unfortunately VPU library relies on the bootloader to pass the correct silicon revision. Eric's tested passing 0 as get_cpu_rev and showed that VPU simply cannot work on this case. > In this case I'd propose to just keep Troy's version of get_cpu_rev() as it > is [1]. This is proven to not to work with mx6solo and VPU, so we need the fix I proposed. Here is what I am planning to do: 1. Send a v2 of this patch with the small correction pointed out by Eric 2. Include a weak function to pass get_cpu_rev in common mx6 code Then on top of that, one can send a patch that prints the mx6 silicon strings by differentiating between a mx6dual-lite and mx6solo, if it is worth. Regards, Fabio Estevam _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot