> -----Original Message----- > From: Fabio Estevam [mailto:[email protected]] > Sent: 2021年2月23日 10:11 > To: Peng Fan <[email protected]> > Cc: [email protected]; [email protected]; [email protected]; > [email protected]; [email protected] > Subject: Re: [PATCH] ARM: dts: imx8mq-evk: Remove u-boot,off-on-delay-us > property > > On Mon, Feb 22, 2021 at 11:04 PM Peng Fan <[email protected]> wrote: > > > I think remove it is not correct, the exact time should be measured > > using oscilloscope, removing it might make sd3.0 not work. But anyway > > 20000 seems too large a value. > > Do you plan to submit a fix for this then? If you don't have the bandwidth for > working on this, then we could go with my proposal. > > I would like to be able to boot a kernel from the SD card in the > 2021.04 release and fix the regression. > > Also, why don't we have such property in the imx8mq-evk.dts in the kernel? > > I don't think U-Boot dts should deviate from the Linux devicetree in this > aspect.
See https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/boot/dts/freescale/imx8mq-evk.dts?h=imx_5.4.70_2.3.0#n100 NXP vendor tree has off-on-delay-us. Regards Peng.
