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authorBharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>2016-02-11 21:58:11 +0530
committerBjorn Helgaas <bhelgaas@google.com>2016-03-08 14:25:57 -0600
commit01cf9d524ff06703dbed37014f34dba9c1b2434d (patch)
treee1f6d3a2956c1901555e7d127eb5fb4f50d07598 /arch/microblaze
parente5d4b2006c97a99492d53638ee016e9f37ae43cb (diff)
downloadlinux-sh-01cf9d524ff06703dbed37014f34dba9c1b2434d.tar.gz
microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge IP driver
Modify the Microblaze PCI subsystem to work with the generic drivers/pci/host/pcie-xilinx.c driver on Microblaze and Zynq. [bhelgaas: changelog] Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com> Signed-off-by: Ravi Kiran Gummaluri <rgummal@xilinx.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/Kconfig3
-rw-r--r--arch/microblaze/pci/pci-common.c56
2 files changed, 13 insertions, 46 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 53b69deceb99..3d793b55f60c 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -267,6 +267,9 @@ config PCI
config PCI_DOMAINS
def_bool PCI
+config PCI_DOMAINS_GENERIC
+ def_bool PCI_DOMAINS
+
config PCI_SYSCALL
def_bool PCI
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index ae838ed5fcf2..35654be3f1c0 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -123,17 +123,6 @@ unsigned long pci_address_to_pio(phys_addr_t address)
}
EXPORT_SYMBOL_GPL(pci_address_to_pio);
-/*
- * Return the domain number for this bus.
- */
-int pci_domain_nr(struct pci_bus *bus)
-{
- struct pci_controller *hose = pci_bus_to_host(bus);
-
- return hose->global_number;
-}
-EXPORT_SYMBOL(pci_domain_nr);
-
/* This routine is meant to be used early during boot, when the
* PCI bus numbers have not yet been assigned, and you need to
* issue PCI config cycles to an OF device.
@@ -863,26 +852,10 @@ void pcibios_setup_bus_devices(struct pci_bus *bus)
void pcibios_fixup_bus(struct pci_bus *bus)
{
- /* When called from the generic PCI probe, read PCI<->PCI bridge
- * bases. This is -not- called when generating the PCI tree from
- * the OF device-tree.
- */
- if (bus->self != NULL)
- pci_read_bridge_bases(bus);
-
- /* Now fixup the bus bus */
- pcibios_setup_bus_self(bus);
-
- /* Now fixup devices on that bus */
- pcibios_setup_bus_devices(bus);
+ /* nothing to do */
}
EXPORT_SYMBOL(pcibios_fixup_bus);
-static int skip_isa_ioresource_align(struct pci_dev *dev)
-{
- return 0;
-}
-
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the
@@ -899,20 +872,18 @@ static int skip_isa_ioresource_align(struct pci_dev *dev)
resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)
{
- struct pci_dev *dev = data;
- resource_size_t start = res->start;
-
- if (res->flags & IORESOURCE_IO) {
- if (skip_isa_ioresource_align(dev))
- return start;
- if (start & 0x300)
- start = (start + 0x3ff) & ~0x3ff;
- }
-
- return start;
+ return res->start;
}
EXPORT_SYMBOL(pcibios_align_resource);
+int pcibios_add_device(struct pci_dev *dev)
+{
+ dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
+
+ return 0;
+}
+EXPORT_SYMBOL(pcibios_add_device);
+
/*
* Reparent resource children of pr that conflict with res
* under res, and make res replace those children.
@@ -1333,13 +1304,6 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
(unsigned long)hose->io_base_virt - _IO_BASE);
}
-struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
-{
- struct pci_controller *hose = bus->sysdata;
-
- return of_node_get(hose->dn);
-}
-
static void pcibios_scan_phb(struct pci_controller *hose)
{
LIST_HEAD(resources);