Hi, It looks as this RFC was never posted as a real patch. For embedded devices with several memory devices, some being removable, providing a way to define aliases for the nodes in the device tree is a benefit. I have tested the patch from Jaehoon and it works nicely. Could this be reposted and considered for inclusion? Found the original patch here: https://patchwork.kernel.org/patch/8685711/ Best Regards Tomas On 04/04/2016 09:14 PM, Ulf Hansson wrote: > On 4 April 2016 at 04:08, Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote: >> Hi All, >> >> Are there any other opinion for this RFC patch? >> >> Best Regards, >> Jaehoon Chung >> >> On 03/30/2016 09:15 AM, Shawn Lin wrote: >>> 在 2016/3/29 18:49, Jisheng Zhang 写é“: >>>> Hi Jaehoon, >>>> >>>> On Tue, 29 Mar 2016 19:43:34 +0900 Jaehoon Chung wrote: >>>> >>>>> This patch is just RFC. I want to know opinions. >>>>> >>>>> Now, index of mmcblk is allocated in accordance with probing time. >>>>> If want to use the mmcblk1 for some device, it can use alias. >>>>> >>>>> aliases { >>>>> mmc0 = &mmc0; /* mmcblk0 for eMMC */ >>>>> mmc1 = &mmc2; /* mmcblk1 for SD */ >>>>> mmc2 = &mmc1; /* mmcblk2 for SDIO*/ >>>>> }; >>>> >>>> I like this feature and we do need it. In the past, we have to put emmc dt node >>>> before the sd node, but on our platform, the register base of sdhc host for emmc >>>> is higher than the one for sd, putting emmc dt node before sd looks a bit >>>> strange, but we have no better solutions. >>>> >>> >>> :) That is also what I suffered currently. I have to prepare two >>> seperate firmware with two diff fstab files to assign the mount point >>> since sometime I need to boot from sd, but sometimes from emmc.... >>> With this patch, I only need to dtc a new dtb... quite simple. >>> >>>> Thanks, >>>> Jisheng > > I am not immediately opposed to this patch, although let me think a > bit more about it. > > What I would like to understand is why UUID/PARTUUID isn't working for > your case. Did you try to use that? I have used with UUID/PARTUUID/PARTLABEL and etc.. I think it's not problem. But that is why some guys wants to use the fixed index. (Almost all SoCs are still using "root=mmcblk0pX" in bootloader.) I'm considering more what is better. :) Best Regards, Jaehoon Chung > > Kind regards > Uffe > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
