[PATCH] imx8mp_evk: Make SPL binary size smaller

[Marek Vasut]

On 5/8/20 4:56 AM, Fabio Estevam wrote:
> Hi Marek,
> 
> On Thu, May 7, 2020 at 10:40 PM Marek Vasut <marex at denx.de> wrote:
> 
>> Disable tiny printf in SPL, because that's really broken with
>> dm_dump_all(), run dm_dump_all() just after power_init_board() in
>> board/freescale/imx8m{p,q}_evk/spl.c  and compare the results. There is
>> likely gonna be a missing driver, my bet would still be on the clock.
> 
> That's a good suggestion. Yes, the clock drivers are missing for i.MX8MP.
> 
> Here is the comparison against a i.MX8MM EVK:
> https://pastebin.com/raw/XVc6AAvr
> 
> I will activate them on SPL tomorrow.

Great, thanks.

> Also, I noticed that i.MX8MM EVK has the following watchdog issues on master:
> 
> U-Boot SPL 2020.07-rc1-00387-g67887903af (May 07 2020 - 23:49:27 -0300)
> Normal Boot
> WDT:   Started without servicing (60s timeout)
> Trying to boot from MMC1
> 
> 
> U-Boot 2020.07-rc1-00387-g67887903af (May 07 2020 - 23:49:27 -0300)
> 
> CPU:   Freescale i.MX8MMQ rev1.0 at 1200 MHz
> Reset cause: POR
> Model: FSL i.MX8MM EVK board
> DRAM:  2 GiB
> WDT:   Started without servicing (60s timeout)
> MMC:   FSL_SDHC: 1, FSL_SDHC: 2
> Loading Environment from MMC... OK
> In:    serial
> Out:   serial
> Err:   serial
> Net:
> Warning: ethernet at 30be0000 using MAC address from ROM
> eth0: ethernet at 30be0000
> Hit any key to stop autoboot:  0
> u-boot=>
> 
> It reboots after staying 60s in the U-Boot prompt.

Enable CONFIG_WATCHDOG in your U-Boot config, that will enable WDT
servicing.