[U-Boot] [RFC PATCH] driver: pci: Fix regions for local memory

Simon Glass sjg at chromium.org
Thu Mar 16 22:47:55 UTC 2017


On 9 February 2017 at 11:35, York Sun <york.sun at nxp.com> wrote:
> When adding local memory to PCI region, gd->ram_size is correct only
> if the memory is in one continuous block. In case memory is split
> into several banks, each bank should be added separately.
>
> Signed-off-by: York Sun <york.sun at nxp.com>
> CC: Simon Glass <sjg at chromium.org>
> ---
> It was spotted when I was rewriting the code to reserve secure memory
> and forgot to reduce gd->ram_size. PCIe resumes working after fixing
> gd->ram_size. For my case, the memory is split into two banks. So
> base + gd->ram_size is not in memory. I don't know how it worked before.
> This change seems reasonable without digging into PCI code.
>
>  drivers/pci/pci-uclass.c | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
>

Acked-by: Simon Glass <sjg at chromium.org>


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