On Monday 22 December 2014 02:00 PM, Arnd Bergmann wrote:
On Monday 22 December 2014 12:09:04 Pratyush Anand wrote:
Config space is need to be allocated using reg property. This patch
removes possibility of config space allocation through ranges property.
To: Mohit Kumar <mohit.kumar@xxxxxx>
To: Jingo Han <jg1.han@xxxxxxxxxxx>
To: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
To: Shawn Guo <shawn.guo@xxxxxxxxxxxxx>
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Pratyush Anand <panand@xxxxxxxxxx>
---
arch/arm/boot/dts/imx6qdl.dtsi | 3 +--
arch/arm/boot/dts/imx6sx.dtsi | 8 ++++----
changing the DT files is probably ok.
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index df781cdf13c1..0b22b42e1ff9 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -409,19 +409,6 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
pp->mem_mod_base = of_read_number(parser.range -
parser.np + na, ns);
}
- if (restype == 0) {
- of_pci_range_to_resource(&range, np, &pp->cfg);
- pp->cfg0_size = resource_size(&pp->cfg)/2;
- pp->cfg1_size = resource_size(&pp->cfg)/2;
- pp->cfg0_base = pp->cfg.start;
- pp->cfg1_base = pp->cfg.start + pp->cfg0_size;
-
- /* Find the untranslated configuration space address */
- pp->cfg0_mod_base = of_read_number(parser.range -
- parser.np + na, ns);
- pp->cfg1_mod_base = pp->cfg0_mod_base +
- pp->cfg0_size;
- }
}
Since we've allowed this for so long, it may be better to leave this
in for compatibility with old dts files. It would however be good to
print a warning message. We could also limit it to those machines that
are known to have been used with this property in the past.
I think, only imx6 is using "config from ranges", for which I made the
change in this patch. Modification need to be tested and acked by IMX6
maintainers.
I do not see any other driver using it. However, I have kept all
designware user in CC here.
~Pratyush
Arnd
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