PCI: rcar: Fix I/O offset for multiple host bridges
Fix I/O offset for multiple host bridges.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 8e583c2..f4fa6c5 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -108,6 +108,8 @@
#define RCAR_PCI_MAX_RESOURCES 4
#define MAX_NR_INBOUND_MAPS 6
+static unsigned long global_io_offset;
+
struct rcar_msi {
DECLARE_BITMAP(used, INT_PCI_MSI_NR);
struct irq_domain *domain;
@@ -357,7 +359,7 @@
rcar_pci_write_reg(pcie, mask, PCIEPTCTLR(win));
}
-static int rcar_pcie_setup(int nr, struct list_head *resource, struct rcar_pcie *pcie)
+static int rcar_pcie_setup(struct list_head *resource, struct rcar_pcie *pcie)
{
struct resource *res;
int i;
@@ -375,7 +377,8 @@
if (res->flags & IORESOURCE_IO) {
phys_addr_t io_start = pci_pio_to_address(res->start);
- pci_ioremap_io(nr * SZ_64K, io_start);
+ pci_ioremap_io(global_io_offset, io_start);
+ global_io_offset += SZ_64K;
}
pci_add_resource(resource, res);
@@ -390,7 +393,7 @@
struct pci_bus *bus, *child;
LIST_HEAD(res);
- rcar_pcie_setup(1, &res, pcie);
+ rcar_pcie_setup(&res, pcie);
/* Do not reassign resources if probe only */
if (!pci_has_flag(PCI_PROBE_ONLY))