i.MX8QXP hangs in SPL after a "reboot" command

[Peng Fan]

> Subject: Re: i.MX8QXP hangs in SPL after a "reboot" command
> 
> On Thu, Apr 2, 2020 at 4:21 PM Fabio Estevam <festevam at gmail.com>
> wrote:
> 
> > U-Boot SPL 2020.04-rc4-00061-ge0718b3ab7 (Apr 02 2020 - 16:14:22
> > -0300) Normal Boot
> > WDT:   Not found!
> > Trying to boot from MMC2_2
> > spl: mmc init failed with error: -70
> > SPL: failed to boot from all boot devices ### ERROR ### Please RESET
> > the board ###

Do you enable M4 partition in your image?

Regards,
Peng.

> 
> I added the following debug line:
> 
> --- a/drivers/mmc/fsl_esdhc_imx.c
> +++ b/drivers/mmc/fsl_esdhc_imx.c
> @@ -499,6 +499,7 @@ static int esdhc_send_cmd_common(struct
> fsl_esdhc_priv *priv, struct mmc *mmc,
>         irqstat = esdhc_read32(&regs->irqstat);
> 
>         if (irqstat & CMD_ERR) {
> +               printf("****** -ECOMM comming from 1\n");
>                 err = -ECOMM;
>                 goto out;
>         }
> 
> And this is what I got after issuing a 'reboot' command in Linux:
> 
> # reboot
> # Stopping network: OK
> Saving random seed: [    5.255229] random: dd: uninitialized urandom
> read (512 bytes read)
> OK
> Stopping klogd: OK
> Stopping syslogd: OK
> umount: devtmpfs busy - remounted read-only
> [    5.309631] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
> The system is going down NOW!
> Sent SIGTERM to all processes
> Sen[    7.318988] kvm: exiting hardware virtualization
> [    7.339445] reboot: Restarting system
> 
> U-Boot SPL 2020.04-rc4-00062-g1e193557d5-dirty (Apr 04 2020 - 10:14:43
> -0300) Normal Boot
> WDT:   Not found!
> Trying to boot from MMC2_2
> ****** -ECOMM comming from 1
> ****** -ECOMM comming from 1
> spl: mmc init failed with error: -70
> SPL: failed to boot from all boot devices ### ERROR ### Please RESET the
> board ###
> 
> Any ideas as to why CMD_ERR bit is being set in the irqstat register?
> 
> Thanks