On 5/23/19 5:17 PM, Tom Rini wrote: > On Thu, May 23, 2019 at 04:04:17PM +0200, Marek Vasut wrote: >> On 5/23/19 3:59 PM, Tom Rini wrote: >>> On Thu, May 23, 2019 at 10:49:11AM -0300, Fabio Estevam wrote: >>>> Hi Peng, >>>> >>>> On Tue, May 21, 2019 at 10:38 PM Peng Fan <peng....@nxp.com> wrote: >>>> >>>>>> I will send a v2 removing CONFIG_SPL_DM. >>>>> >>>>> So what is the real direction moving to use SPL driver, non-dm is allowed >>>>> in future? >>>> >>>> We are very limited in space when CONFIG_SPL_DM is used on imx6q-sabresd. >>>> >>>> With CONFIG_SPL_DM selected the size increase due to the three dtb's >>>> is about 8kB. >>>> >>>> Even with CONFIG_SPL_DM disabled we ony have 1kB of free space, so I >>>> still want to optimize the size further. >>> >>> So with CONFIG_SPL_DM we're overflowing by ~7kB? >>> >>>> Two options that I want also to remove are: >>>> >>>> CONFIG_SPL_FS_EXT4=y >>>> CONFIG_SPL_I2C_SUPPORT=y >>>> >>>> We are at -rc2 now, and I would really like to have mx6sabresd booting >>>> again. >>>> >>>> Please check my v2 series and see if it looks good. >>> >>> We certainly want to do something to fix the regression, agreed. >>> >>> Looking at the config, can we just use a fake DTB for SPL that works on >>> all 3 boards, rather than 3 DTBs? >> >> Mind you, all of that seems like a workaround. Removing functionality >> just to fit the monster with DM/DT in is a no-go. R-Car Gen2 doesn't use >> DM/DT in SPL because it just won't fit and I believe that absolutely >> makes sense ; why should we impose DM/DT in SPL on MX6 only to make it >> less usable? > > Setting aside that as I said you don't have to use DM in SPL
Right, that's an important concensus . >, maybe it's > also worth noting you don't have to provide "describes the whole board" > DTB files. That's what u-boot,dm-spl and CONFIG_OF_SPL_REMOVE_PROPS is for, yes ? > If as far as SPL is concerned there's no difference between > board A, B and C, just make a DTS that describes the relevant hardware. Right > Also, platdata can help here too. > -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot