Mario, > -----Original Message----- > From: U-Boot <u-boot-boun...@lists.denx.de> On Behalf Of Mario > Lombardo > Sent: Wednesday, November 3, 2021 5:40 AM > To: u-boot@lists.denx.de > Subject: [External] - Slow MMC IO with Raspberry CM3+ Module > > Dear u-boot list, > > I recently compiled (latest: 2021.10) code of uboot as a boot loader > for the Compute Module 3+ (Raspberry). Everything works fine except one issue: > the IO from the storage is extreme slow. I read about issues in the > past related to ext file systems. However the present issue relates to > both ext and fat file systems so I assume its cause is different.
Please see this series: https://patchwork.ozlabs.org/project/uboot/list/?series=262375 And this RPi issue: https://github.com/raspberrypi/firmware/issues/1619 > > This is what I did: > > U-Boot> setenv pio_kernel "recovery/kernel.img" > U-Boot> setenv pio_initrd "recovery/initrd.img" > U-Boot> fatload mmc 0:1 ${kernel_addr_r} ${pio_kernel} > 5299624 bytes read in 45262 ms (114.3 KiB/s) > U-Boot> fatload mmc 0:1 ${ramdisk_addr_r} ${pio_initrd} > 24239932 bytes read in 206978 ms (114.3 KiB/s) > > The configuration of by build is attached. > > Is there anyone else experiencing this kind of issues? > > Thank you very much. > > Mario > > > CAUTION: This email originated from outside of the organization. Do > not click links or open attachments unless you recognize the sender > and know the content is safe. -Vincent