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

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

[Stefan Roese]

This patch fixes a problem recently seen on some 4xx platforms. For
example on Kilauea PCIe slot #0.

Signed-off-by: Stefan Roese <sr@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.

 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);
-- 
1.6.1.3

[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@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);
>