Kever, > On 07.12.2018, at 02:39, Kever Yang <kever.y...@rock-chips.com> wrote: > > Hi Philipp, > > On 12/06/2018 09:50 PM, Philipp Tomsich wrote: >> +Tom >> >>> On 05.12.2018, at 03:25, Kever Yang <kever.y...@rock-chips.com> wrote: >>> >>> The U-Boot eMMC does not need to care about the power for Rockchip >>> SoC, because if the board is using eMMC, the power will default on >>> (for bootrom), and we do not do power management for it like kernel, >>> so the 'vmmc', 'vqmmc' is only useful for SD in U-Boot. >>> >>> This make U-Boot can boot into kernel even if the pmic driver is >>> broken. >> If the PMIC driver is broken, we should fix the PMIC driver. >> I would feel more comfortable w/o this statement. >> >>> The rk3288-evb dts may be used in many boards using rockchip reference >>> schematic but with little change, so we hope it can be more robust to >>> boot into next stage. >> Again, this is not how the DTS should be used. I believe that Heiko, Fabio >> and >> I had already highlighted this in comments to the earlier thread. > > Not sure if you have read my previous mail for answer all your comments, > > I do agree DTS should represent the hardware, but please note that the DTS > is no kind of standard, and people always choose what they need and add > those part in there dts, but not always add all the property and > everyone use the same model. I would say there are many boards does not have > this > 'vmmc-supply’ in there emmc node.
That is exactly the reason why I bumped the decision up the stairs (to Tom and/or Simon): what you are saying makes sense to me (viewed through your eyes and from your specific usecase), but it directly contradicts how the DTS usage is intended. In other words: Tom (as the top-level decision maker) or Simon (who owns the device-model and therefore will also have an opinion on DTS usage) should make the final call. Thanks, Philipp. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
