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Commit 68094b4b authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

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
parents e34e38bf ce709f86

drivers/pci/host/pcie-iproc-platform.c

+1 −6
Original line number Diff line number Diff line
@@ -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) {

drivers/pci/host/pcie-iproc.c

+4 −1
Original line number Diff line number Diff line
@@ -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;

drivers/pci/quirks.c

+21 −0
Original line number Diff line number Diff line
@@ -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