[U-Boot] [PATCH] ppc4xx: PCIe: Change 16GB inbound memory to 4GB

[Felix Radensky]

Stefan Roese wrote:
> This patch fixes a problem recently seen on some 4xx platforms. For
> example on Kilauea PCIe slot #0.
>
> Signed-off-by: Stefan Roese <sr at denx.de>
> ---
>
> Felix, could you please test on your Kilaue with this patch applied?
> It fixes the problem on my system but please report if your board
> now boots correctly with the PCIe card plugged into both slots.
>
> Thanks.
>   

Yes, this fixes my problem. Tested with single slot populated (0 and 1)
and with 2 slots populated.

Thanks a lot for a quick fix.

Felix.
>  cpu/ppc4xx/4xx_pcie.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/cpu/ppc4xx/4xx_pcie.c b/cpu/ppc4xx/4xx_pcie.c
> index 58d96bb..07fbb0e 100644
> --- a/cpu/ppc4xx/4xx_pcie.c
> +++ b/cpu/ppc4xx/4xx_pcie.c
> @@ -1028,10 +1028,10 @@ void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port)
>  #endif
>  	}
>  
> -	/* Set up 16GB inbound memory window at 0 */
> +	/* Set up 4GB inbound memory window at 0 */
>  	out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
>  	out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
> -	out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
> +	out_le32(mbase + PECFG_BAR0HMPA, 0x7ffffff);
>  	out_le32(mbase + PECFG_BAR0LMPA, 0);
>  
>  	out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
>