Hi Fabio,
Am Fr., 10. Juni 2022 um 16:13 Uhr schrieb Heiko Thiery heiko.thiery@gmail.com:
Hi,
Am Fr., 10. Juni 2022 um 15:00 Uhr schrieb Fabio Estevam festevam@gmail.com:
Hi Heiko,
On Fri, Jun 10, 2022 at 7:29 AM Heiko Thiery heiko.thiery@gmail.com wrote:
Hi,
I just rebased my pending patch for adding support for the NXP imx8mn ddr3l evk board. When applying on the current master I see some garbage on the serial input.
Can anyone confirm that behavior or is it just here?
Just tried booting on a imx8mn ddr4 evk and such a problem does not happen:
U-Boot SPL 2022.07-rc4-00007-g57bd363de7 (Jun 10 2022 - 09:42:49 -0300) SEC0: RNG instantiated Normal Boot WDT: Started watchdog@30280000 with servicing (60s timeout) Trying to boot from BOOTROM image offset 0x8000, pagesize 0x200, ivt offset 0x0 NOTICE: BL31: v2.7(release):v2.7.0 NOTICE: BL31: Built : 09:42:28, Jun 10 2022
U-Boot 2022.07-rc4-00007-g57bd363de7 (Jun 10 2022 - 09:42:49 -0300)
CPU: Freescale i.MX8MNano Quad rev1.0 at 1200 MHz Reset cause: POR Model: NXP i.MX8MNano DDR4 EVK board DRAM: 2 GiB Core: 139 devices, 22 uclasses, devicetree: separate WDT: Started watchdog@30280000 with servicing (60s timeout) MMC: FSL_SDHC: 1, FSL_SDHC: 2 Loading Environment from MMC... OK In: serial@30890000 Out: serial@30890000 Err: serial@30890000 Net: eth0: ethernet@30be0000 Hit any key to stop autoboot: 0
Also tried booting on a imx8mm evk and did not see the serial garbage either.
Not sure why this happens on the imx8mn ddr3 evk and on the kontron_sl_imx8mm though.
Yes, this is strange.
None of the boards I have physical access show the problem. The Kontron board have remote access only, so not very easy to run git bisect.
Are you able to bisect it with the kontron_sl_imx8mm board?
Unfortunately only next week again. But I will try on my imx8mq later.
It took me some effort to get the current u-boot running on my imx8mq. But finally it works and I do not see this garbage on the imx8mq. Next week I will check on the kontron_sl_imx8mm.
-- Heiko