Re: [PATCH v3 7/9] hw/ppc/e500: Implement pflash handling

[Peter Maydell]

On Sun, 16 Oct 2022 at 13:28, Bernhard Beschow <shentey@gmail.com> wrote:
>
> Allows e500 boards to have their root file system reside on flash using
> only builtin devices located in the eLBC memory region.
>
> Note that the flash memory area is only created when a -pflash argument is
> given, and that the size is determined by the given file. The idea is to
> put users into control.
>
> Signed-off-by: Bernhard Beschow <shentey@gmail.com>

> +        pfl = pflash_cfi01_register("e500.flash", size, blk, 64 * KiB, 2,
> +                                    0x89, 0x18, 0x0000, 0x0, 1);
> +        memory_region_add_subregion(&pms->pbus_dev->mmio, 0,
> +                                    pflash_cfi01_get_memory(pfl));

pflash_cfi01_register() puts the memory region into the
system address space. It's just a legacy convenience wrapper
function, so if you need to put the resulting memory region somewhere
else, just directly create, configure and map the device in
this board code.


thanks
-- PMM