kontron_pitx_imx8m does not start

[Heiko Thiery]

Hi Michael,

Am Fr., 15. Juli 2022 um 12:21 Uhr schrieb Michael Nazzareno Trimarchi
<michael at amarulasolutions.com>:
>
> Hi Heiko
>
> On Fri, Jul 15, 2022 at 12:06 PM Heiko Thiery <heiko.thiery at gmail.com> wrote:
> >
> > Hi Marek
> >
> > Am Fr., 15. Juli 2022 um 11:29 Uhr schrieb Marek Vasut <marex at denx.de>:
> > >
> > > On 7/15/22 10:33, Heiko Thiery wrote:
> > > > Hi,
> > >
> > > Hi,
> > >
> > > > I see since the change to CLK_IMX8MQ that the kontron_pitx_imx8m board
> > > > does not start anymore. I have enabled the DUBUG_UART and see the
> > > > following outputs
> > >
> > > Pick
> > > [PATCH] board_init: Do not reserve MALLOC_F area on stack if non-zero
> > > MALLOC_F_ADDR
> >
> > this does not solve the issue.
> > >
> > > And also, increate SPL_MALLOC_F_LEN in board config if that itself does
> > > not help.
> >
> > As said, I need to increase SYS_MALLOC_F_LEN to 0xc000. Then the board
> > starts. But Peng said that this is not a valid value due to the
> > OCRAM_S is limited to 32k and this is the MALLOC base.
> > On the other hand, why does my board consums that much memory and the
> > others not. I cannot find any difference in these boards that explains
> > this to me.
>
> When you try to boot from sdcard your memory should be already in ddr.
> So the allocation
> should already be there.

Maybe I just don't understand it correctly, but isn't it the case that
there is also code in the U-boot that uses malloc before the
relocation takes place? And doesn't this use the memory that has
SYS_MALLOC_F and the size SYS_MALLOC_F_LEN?

And the flag DM_FLAG_PRE_RELOC which is used e.g. in clk-imx8mq
indicates that this is then in this memory area?

> Michael
>
> >
> > --
> > Heiko

--
Heiko