[PATCH v2] spl: Add generic SPL MTD loader support

[Fabio Estevam]

Hi Sean,

On Wed, Feb 25, 2026 at 4:45 PM Sean Anderson <seanga2 at gmail.com> wrote:

> Actually, I don't think this is correct. NAND devices have have multiple MTDs for each
> CS, and SPI-NOR devices are UCLASS_SPI_FLASH and not UCLASS_MTD. So I think it's better
> to do something like
>
>         mtd_probe_devices();
>         switch (bootdev->boot_device) {
>         case BOOT_DEVICE_NAND:
>                 mtd = get_mtd_device_nm(CONFIG_SPL_MTD_NAND_NAME);
>                 break;
>         case BOOT_DEVICE_SPI:
>                 mtd = get_mtd_device_nm(CONFIG_SPL_MTD_SPI_FLASH_NAME);
>                 break;
>         default:
>                 mtd = ERR_PTR(-ENODEV);
>                 break;
>         }
>         if (IS_ERR(mtd)) {
>                 ret = PTR_ERR(mtd);
>                 goto out;
>         }
...

> > Actually, if CONFIG_SPL_NAND_SUPPORT is enabled then the native nand loader is compiled.
> > Maybe we should add a separate Kconfig for it (CONFIG_SPL_NAND_LOAD) defaulting to
> > SPL_NAND_SUPPORT. Then users can disable the "native" load method if they want to use MTD.
>
> I have a patch for this that I will try to send this week.

If you would like to prepare a patch for the generic SPL MTD loader,
I'll be glad to test it.

Thanks