[PATCH 2/2] of: treat PCI config space as IORESOURCE_MEM type with special flags.
Liviu Dudau
Liviu.Dudau at arm.com
Fri May 30 17:36:41 PDT 2014
If we have a PCI config space specified in something like a ranges
property we should treat it as memory type resource. Use the
IORESOURCE_ECFG bit to distinguish the config space from standard
IORESOURCE_MEM resources.
Signed-off-by: Kumar Gama <galak at codeaurora.org>
[Updated commit log and added IORESOURCE_ECFG bit]
Signed-off-by: Liviu Dudau <Liviu.Dudau at arm.com>
---
drivers/of/address.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 2fcfbae..877e9e5 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -123,6 +123,9 @@ static unsigned int of_bus_pci_get_flags(const __be32 *addr)
u32 w = be32_to_cpup(addr);
switch((w >> 24) & 0x03) {
+ case 0x00: /* cfg space */
+ flags |= IORESOURCE_MEM | IORESOURCE_PCI_ECFG;
+ break;
case 0x01:
flags |= IORESOURCE_IO;
break;
--
1.9.2
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