On Thu, Apr 14, 2022 at 9:10 AM Tim Harvey <[email protected]> wrote: > > On Wed, Apr 13, 2022 at 10:21 AM Michael Nazzareno Trimarchi > <[email protected]> wrote: > > > > Hi > > > > On Wed, Apr 13, 2022 at 6:09 PM Tim Harvey <[email protected]> wrote: > > > > > > On Wed, Apr 13, 2022 at 8:56 AM Michael Nazzareno Trimarchi > > > <[email protected]> wrote: > > > > > > > > Hi Tim > > > > > > > > On Wed, Apr 13, 2022 at 5:47 PM Tim Harvey <[email protected]> > > > > wrote: > > > > > > > > > > Enable DM_SERIAL. > > > > > > > > > > Signed-off-by: Tim Harvey <[email protected]> > > > > > --- > > > > > v2: rebase on imx/master > > > > > --- > > > > > configs/imx8mm_venice_defconfig | 2 ++ > > > > > configs/imx8mn_venice_defconfig | 2 ++ > > > > > 2 files changed, 4 insertions(+) > > > > > > > > > > diff --git a/configs/imx8mm_venice_defconfig > > > > > b/configs/imx8mm_venice_defconfig > > > > > index dd61ec9b70fb..09f7d8a58ca7 100644 > > > > > --- a/configs/imx8mm_venice_defconfig > > > > > +++ b/configs/imx8mm_venice_defconfig > > > > > @@ -110,6 +110,8 @@ CONFIG_SPL_DM_PMIC_MP5416=y > > > > > CONFIG_DM_REGULATOR=y > > > > > CONFIG_DM_REGULATOR_FIXED=y > > > > > CONFIG_DM_REGULATOR_GPIO=y > > > > > +CONFIG_DM_SERIAL=y > > > > > +# CONFIG_SPL_DM_SERIAL is not set > > > > > CONFIG_MXC_UART=y > > > > > CONFIG_SYSRESET=y > > > > > CONFIG_SPL_SYSRESET=y > > > > > diff --git a/configs/imx8mn_venice_defconfig > > > > > b/configs/imx8mn_venice_defconfig > > > > > index c3a96a378553..41898da4aecf 100644 > > > > > --- a/configs/imx8mn_venice_defconfig > > > > > +++ b/configs/imx8mn_venice_defconfig > > > > > @@ -108,6 +108,8 @@ CONFIG_SPL_DM_PMIC_MP5416=y > > > > > CONFIG_DM_REGULATOR=y > > > > > CONFIG_DM_REGULATOR_FIXED=y > > > > > CONFIG_DM_REGULATOR_GPIO=y > > > > > +CONFIG_DM_SERIAL=y > > > > > +# CONFIG_SPL_DM_SERIAL is not set > > > > > CONFIG_MXC_UART=y > > > > > CONFIG_SYSRESET=y > > > > > CONFIG_SPL_SYSRESET=y > > > > > -- > > > > > 2.17.1 > > > > > > > > > > > > > Should not select in your board kconfig? > > > > > > > > > > Michael, > > > > > > I don't think it really matters. The other conversions to DM_SERIAL > > > are going in defconfigs as well. > > > > Do we know why without # CONFIG_SPL_DM_SERIAL is not set > > > > board hang? > > > > Michael, > > yes, if I also enable CONFIG_SPL_DM_SERIAL I get no serial output and > the board hangs even if I add 'u-boot,dm-pre-proper' to > uart2/pinctrl_uart2 nodes.
I see that Peng has a series [1] that moves imx8mn_evk, imx8mm_evk, imx8mp_evk to DM_SERIAL and has figured out the hang. I will re-submit the patch also enabling DM_SERIAL for SPL. Best Regards, Tim [1] https://patchwork.ozlabs.org/project/uboot/list/?series=294869 > > The requirement is to use DM_SERIAL in U-Boot, not in the SPL. I'm > doing the same as was done for imx8mn-evk in ff1c7961d813 ("ARM: imx: > imx8mn-evk: enable DM_SERIAL"). > > Thus far, no ARCH_IMX8M boards have enabled CONFIG_SPL_DM_SERIAL so I > suppose others have run into this as well but again the requirement is > to enable CONFIG_DM_SERIAL not necessarily the SPL. > > Best Regards, > > Tim
