On Wed, Jun 7, 2017 at 11:47 PM, Lokesh Vutla <lokeshvu...@ti.com> wrote: > > > On Thursday 08 June 2017 12:20 AM, Emmanuel Vadot wrote: >> On Fri, 12 May 2017 13:20:50 -0400 >> Tom Rini <tr...@konsulko.com> wrote: >> >>> On Fri, May 05, 2017 at 12:59:10PM +0530, Lokesh Vutla wrote: >>> >>>> am335x supports various sysclk frequencies which can be determined >>>> using sysboot pins. PLLs should be configures based on this >>>> sysclk frequency. Add PLL configurations for all supported >>>> frequencies. >>>> >>>> Signed-off-by: Lokesh Vutla <lokeshvu...@ti.com> >>>> Reviewed-by: Tom Rini <tr...@konsulko.com> >>> >>> Applied to u-boot/master, thanks! >>> >>> -- >>> Tom >> >> Hello, >> >> This appears to break beaglebone black support, reverting this commit >> make u-boot works again. > > hmm..I see the problem. Here we are hard coding MPU freq to 1GHz even > efuse say it is not supported(I am not sure why this is being done, may > be Tom can give more details). Even in kernel I see that cpufreq is > reading efuse to determine mpu frequency. Now that we have jitter > optimized pll configurations, looks like unsupported freq is causing an > issue. Can you see if the below patch helps?
In the kernel, we are re-enabling the 1GHz option in the BoneBlack's device tree blob: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/am335x-boneblack.dts?h=v4.12-rc4&id=bc4b1736f246102e84ce6d3f1a32f614ae27d81f Regards, -- Robert Nelson https://rcn-ee.com/ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot