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authorBjorn Helgaas <bhelgaas@google.com>2017-02-21 15:15:05 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-02-21 15:15:05 -0600
commit68094b4b8d72360f9a90804c203e4292c6662fdd (patch)
tree79ab1eb0d6ee4621863680c541b3be67bc662329 /drivers/pci
parente34e38bf891bd7bf7c9305ff1d2e1b29a77dd159 (diff)
parentce709f86501a013e941e9986cb072eae375ddf3e (diff)
downloadlinux-68094b4b8d72360f9a90804c203e4292c6662fdd.tar.bz2
Merge branch 'pci/host-iproc' into next
* pci/host-iproc: PCI: Add Broadcom Northstar2 PAXC quirk for device class and MPSS PCI: iproc: Configure PCIe MPS settings PCI: iproc: Use of_device_get_match_data() to simplify probe
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/host/pcie-iproc-platform.c7
-rw-r--r--drivers/pci/host/pcie-iproc.c5
-rw-r--r--drivers/pci/quirks.c21
3 files changed, 26 insertions, 7 deletions
diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c
index 22d814a78a78..f4909bb0b2ad 100644
--- a/drivers/pci/host/pcie-iproc-platform.c
+++ b/drivers/pci/host/pcie-iproc-platform.c
@@ -47,7 +47,6 @@ MODULE_DEVICE_TABLE(of, iproc_pcie_of_match_table);
static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- const struct of_device_id *of_id;
struct iproc_pcie *pcie;
struct device_node *np = dev->of_node;
struct resource reg;
@@ -55,16 +54,12 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
LIST_HEAD(res);
int ret;
- of_id = of_match_device(iproc_pcie_of_match_table, dev);
- if (!of_id)
- return -EINVAL;
-
pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
if (!pcie)
return -ENOMEM;
pcie->dev = dev;
- pcie->type = (enum iproc_pcie_type)of_id->data;
+ pcie->type = (enum iproc_pcie_type) of_device_get_match_data(dev);
ret = of_address_to_resource(np, 0, &reg);
if (ret < 0) {
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c
index 3ebc025499b9..0f39bd2a04cb 100644
--- a/drivers/pci/host/pcie-iproc.c
+++ b/drivers/pci/host/pcie-iproc.c
@@ -1205,7 +1205,7 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
struct device *dev;
int ret;
void *sysdata;
- struct pci_bus *bus;
+ struct pci_bus *bus, *child;
dev = pcie->dev;
@@ -1278,6 +1278,9 @@ int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res)
if (pcie->map_irq)
pci_fixup_irqs(pci_common_swizzle, pcie->map_irq);
+ list_for_each_entry(child, &bus->children, node)
+ pcie_bus_configure_settings(child);
+
pci_bus_add_devices(bus);
return 0;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 3deff4a98932..6079a4ddf132 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2240,6 +2240,27 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5719,
quirk_brcm_5719_limit_mrrs);
+#ifdef CONFIG_PCIE_IPROC_PLATFORM
+static void quirk_paxc_bridge(struct pci_dev *pdev)
+{
+ /* The PCI config space is shared with the PAXC root port and the first
+ * Ethernet device. So, we need to workaround this by telling the PCI
+ * code that the bridge is not an Ethernet device.
+ */
+ if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+ pdev->class = PCI_CLASS_BRIDGE_PCI << 8;
+
+ /* MPSS is not being set properly (as it is currently 0). This is
+ * because that area of the PCI config space is hard coded to zero, and
+ * is not modifiable by firmware. Set this to 2 (e.g., 512 byte MPS)
+ * so that the MPS can be set to the real max value.
+ */
+ pdev->pcie_mpss = 2;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16cd, quirk_paxc_bridge);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16f0, quirk_paxc_bridge);
+#endif
+
/* Originally in EDAC sources for i82875P:
* Intel tells BIOS developers to hide device 6 which
* configures the overflow device access containing