openwrtv4/target/linux/imx6/patches-3.14/200-pci_designware_add-ability-for-custom-swizzle.patch
Luka Perkov 9d826428b7 imx6: kernel: add GW16082 miniPCI Expansion Mezzanine support
The GW16082 miniPCI Expansion Mezzanine has the INTA/B/C/D IRQ's reversed
from the PCI standard. This will soon be resolved in the bootloader via
devicetree, but in the meantime this will work around the issue.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 42146
2014-08-11 20:35:06 +00:00

33 lines
987 B
Diff

commit e84634dc6c7f3f6af9b8ef1fb36f0d85c476ab95
Author: Tim Harvey <tharvey@gateworks.com>
Date: Thu Feb 27 01:02:23 2014 -0800
PCI: designware: add ability for custom swizzle
Add the ability for a platform driver to provide a platform-specific
swizzle function.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -481,6 +481,9 @@ int __init dw_pcie_host_init(struct pcie
if (pp->ops->host_init)
pp->ops->host_init(pp);
+ if (pp->swizzle)
+ dw_pci.swizzle = pp->swizzle;
+
dw_pcie_wr_own_conf(pp, PCI_BASE_ADDRESS_0, 4, 0);
/* program correct class for RC */
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -53,6 +53,7 @@ struct pcie_port {
struct irq_domain *irq_domain;
unsigned long msi_data;
DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
+ u8 (*swizzle)(struct pci_dev *, u8 *);
};
struct pcie_host_ops {