PCI: mvebu: Call request_resource() on the apertures
It is typical for host drivers to request a resource for the aperture; once
this is done the PCI core will properly populate resources for all BARs in
the system.
With this patch cat /proc/iomem will now show:
e0000000-efffffff : PCI MEM 0000
e0000000-e00fffff : PCI Bus 0000:01
e0000000-e001ffff : 0000:01:00.0
Tested on Kirkwood.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 05e3528..d3d1cfd 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -101,7 +101,9 @@
struct mvebu_pcie_port *ports;
struct msi_chip *msi;
struct resource io;
+ char io_name[30];
struct resource realio;
+ char mem_name[30];
struct resource mem;
struct resource busn;
int nports;
@@ -672,10 +674,30 @@
{
struct mvebu_pcie *pcie = sys_to_pcie(sys);
int i;
+ int domain = 0;
- if (resource_size(&pcie->realio) != 0)
+#ifdef CONFIG_PCI_DOMAINS
+ domain = sys->domain;
+#endif
+
+ snprintf(pcie->mem_name, sizeof(pcie->mem_name), "PCI MEM %04x",
+ domain);
+ pcie->mem.name = pcie->mem_name;
+
+ snprintf(pcie->io_name, sizeof(pcie->io_name), "PCI I/O %04x", domain);
+ pcie->realio.name = pcie->io_name;
+
+ if (request_resource(&iomem_resource, &pcie->mem))
+ return 0;
+
+ if (resource_size(&pcie->realio) != 0) {
+ if (request_resource(&ioport_resource, &pcie->realio)) {
+ release_resource(&pcie->mem);
+ return 0;
+ }
pci_add_resource_offset(&sys->resources, &pcie->realio,
sys->io_offset);
+ }
pci_add_resource_offset(&sys->resources, &pcie->mem, sys->mem_offset);
pci_add_resource(&sys->resources, &pcie->busn);