Re: [PATCH] ARM: dts: i.MX8MP FRDM: remove memory node

["Sascha Hauer" <s.hauer@pengutronix.de>]

On 2026-06-12 16:15, Ahmad Fatoum wrote:
> Hello,
> 
> On 6/12/26 13:58, Bastian Krause wrote:
> > Since f083fffe52 ("ARM: dts: i.MX8MP: add DDRC compatibles") the esdctl
> > driver is used. This causes the errors below since barebox tries to add
> > the memory twice:
> > 
> >   imx-esdctl 3d400000.memory-controller@3d400000.of: probe failed: Device or resource busy
> >   initcall imx_esdctl_driver_init+0x0/0x2c failed: No such device
> 
> Can you share the full output? -EBUSY here is not expected for
> the issues you describe. barebox has been tolerant of the same
> memory bank being registered by different means for a number
> of years now.

They are likely not recognized as the same memory bank. The frdm board
has:

        memory@40000000 {
                device_type = "memory";
                reg = <0x0 0x40000000 0 0xc0000000>,
                      <0x1 0x00000000 0 0x40000000>;
        };

Whereas the esdctl driver will register only a single region.

Sascha

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