Hi Stephen, On 1 December 2014 at 11:26, Stephen Warren <swar...@wwwdotorg.org> wrote: > On 11/26/2014 01:46 PM, Simon Glass wrote: >> >> From: Allen Martin <amar...@nvidia.com> >> >> Nyan-big is a Tegra124 clamshell board that is very similar to venice2, >> but >> it has a different panel, the sdcard cd and wp sense are flipped, and it >> has >> a different revision of the AS3722 PMIC. >> >> This is the Acer Chromebook 13 CB5-311-T7NN (13.3-inch HD, NVIDIA >> Tegra K1, 2GB). The display is not currently supported, so it should >> boot on other nyan-based Chromebooks also, but only the device tree for >> nyan-big is provided here. >> >> The device tree file is from Linux but with features removed which are >> unlikely to be supported in U-Boot soon (regulators, pinmux). Also the >> addresses are updated to 32-bit. > > > At a quick glance, the naming seems fine here, so I'm OK with the patch. > > I'd like to see tegra-pinmux-scripts updated to suport this board, but don't > hold up this patch for that; just a nice to have when it can happen. Perhaps > Allen can also double-check that the pinmux data in this patch exactly > matches the NVIDIA syseng spreadsheet for this board. >
I did send a patch to linux-tegra - sorry I may have forgotten to copy anyone. I'll take another look. > I'd like Allen to explicitly comment on the reset GPIO difference and why it > occurred. I'd like to see that happen before the patch is merged, so the > pinmux data can be correct. Perhaps it's simply due to: > >> diff --git a/board/nvidia/nyan-big/nyan-big.c >> b/board/nvidia/nyan-big/nyan-big.c > > >> +void pinmux_init(void) >> +{ >> + pinmux_set_tristate_input_clamping(); > > > Apparently, we should explicitly not be doing that, even though I was > earlier told by our syseng team we explicitly should be doing that. Removing > that call (or explicitly reverting it) might make the difference go away? OK I will try taking it out and see what happens. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot