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path: root/drivers/bcma/host_pci.c
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Diffstat (limited to 'drivers/bcma/host_pci.c')
-rw-r--r--drivers/bcma/host_pci.c122
1 files changed, 104 insertions, 18 deletions
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index a355e63a3838..960632197b05 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -13,10 +13,12 @@
static void bcma_host_pci_switch_core(struct bcma_device *core)
{
+ int win2 = core->bus->host_is_pcie2 ?
+ BCMA_PCIE2_BAR0_WIN2 : BCMA_PCI_BAR0_WIN2;
+
pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN,
core->addr);
- pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN2,
- core->wrap);
+ pci_write_config_dword(core->bus->host_pci, win2, core->wrap);
core->bus->mapped_core = core;
bcma_debug(core->bus, "Switched to core: 0x%X\n", core->id.id);
}
@@ -160,7 +162,6 @@ static int bcma_host_pci_probe(struct pci_dev *dev,
{
struct bcma_bus *bus;
int err = -ENOMEM;
- const char *name;
u32 val;
/* Alloc */
@@ -173,10 +174,7 @@ static int bcma_host_pci_probe(struct pci_dev *dev,
if (err)
goto err_kfree_bus;
- name = dev_name(&dev->dev);
- if (dev->driver && dev->driver->name)
- name = dev->driver->name;
- err = pci_request_regions(dev, name);
+ err = pci_request_regions(dev, "bcma-pci-bridge");
if (err)
goto err_pci_disable;
pci_set_master(dev);
@@ -188,8 +186,13 @@ static int bcma_host_pci_probe(struct pci_dev *dev,
pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
/* SSB needed additional powering up, do we have any AMBA PCI cards? */
- if (!pci_is_pcie(dev))
- bcma_err(bus, "PCI card detected, report problems.\n");
+ if (!pci_is_pcie(dev)) {
+ bcma_err(bus, "PCI card detected, they are not supported.\n");
+ err = -ENXIO;
+ goto err_pci_release_regions;
+ }
+
+ bus->dev = &dev->dev;
/* Map MMIO */
err = -ENOMEM;
@@ -205,16 +208,29 @@ static int bcma_host_pci_probe(struct pci_dev *dev,
bus->boardinfo.vendor = bus->host_pci->subsystem_vendor;
bus->boardinfo.type = bus->host_pci->subsystem_device;
+ /* Initialize struct, detect chip */
+ bcma_init_bus(bus);
+
+ /* Scan bus to find out generation of PCIe core */
+ err = bcma_bus_scan(bus);
+ if (err)
+ goto err_pci_unmap_mmio;
+
+ if (bcma_find_core(bus, BCMA_CORE_PCIE2))
+ bus->host_is_pcie2 = true;
+
/* Register */
err = bcma_bus_register(bus);
if (err)
- goto err_pci_unmap_mmio;
+ goto err_unregister_cores;
pci_set_drvdata(dev, bus);
out:
return err;
+err_unregister_cores:
+ bcma_unregister_cores(bus);
err_pci_unmap_mmio:
pci_iounmap(dev, bus->mmio);
err_pci_release_regions:
@@ -235,14 +251,12 @@ static void bcma_host_pci_remove(struct pci_dev *dev)
pci_release_regions(dev);
pci_disable_device(dev);
kfree(bus);
- pci_set_drvdata(dev, NULL);
}
#ifdef CONFIG_PM_SLEEP
static int bcma_host_pci_suspend(struct device *dev)
{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct bcma_bus *bus = pci_get_drvdata(pdev);
+ struct bcma_bus *bus = dev_get_drvdata(dev);
bus->mapped_core = NULL;
@@ -251,8 +265,7 @@ static int bcma_host_pci_suspend(struct device *dev)
static int bcma_host_pci_resume(struct device *dev)
{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct bcma_bus *bus = pci_get_drvdata(pdev);
+ struct bcma_bus *bus = dev_get_drvdata(dev);
return bcma_bus_resume(bus);
}
@@ -267,16 +280,27 @@ static SIMPLE_DEV_PM_OPS(bcma_pm_ops, bcma_host_pci_suspend,
#endif /* CONFIG_PM_SLEEP */
-static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
+static const struct pci_device_id bcma_pci_bridge_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) },
- { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43224) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4313) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43224) }, /* 0xa8d8 */
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4358) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4359) },
- { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4365) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4360) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, 0x4365, PCI_VENDOR_ID_DELL, 0x0016) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, 0x4365, PCI_VENDOR_ID_DELL, 0x0018) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, 0x4365, PCI_VENDOR_ID_FOXCONN, 0xe092) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_BROADCOM, 0x4365, PCI_VENDOR_ID_HP, 0x804a) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43a0) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43a9) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43aa) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x43b1) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43227) }, /* 0xa8db, BCM43217 (sic!) */
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43228) }, /* 0xa8dc */
{ 0, },
};
MODULE_DEVICE_TABLE(pci, bcma_pci_bridge_tbl);
@@ -298,3 +322,65 @@ void __exit bcma_host_pci_exit(void)
{
pci_unregister_driver(&bcma_pci_bridge_driver);
}
+
+/**************************************************
+ * Runtime ops for drivers.
+ **************************************************/
+
+/* See also pcicore_up */
+void bcma_host_pci_up(struct bcma_bus *bus)
+{
+ if (bus->hosttype != BCMA_HOSTTYPE_PCI)
+ return;
+
+ if (bus->host_is_pcie2)
+ bcma_core_pcie2_up(&bus->drv_pcie2);
+ else
+ bcma_core_pci_up(&bus->drv_pci[0]);
+}
+EXPORT_SYMBOL_GPL(bcma_host_pci_up);
+
+/* See also pcicore_down */
+void bcma_host_pci_down(struct bcma_bus *bus)
+{
+ if (bus->hosttype != BCMA_HOSTTYPE_PCI)
+ return;
+
+ if (!bus->host_is_pcie2)
+ bcma_core_pci_down(&bus->drv_pci[0]);
+}
+EXPORT_SYMBOL_GPL(bcma_host_pci_down);
+
+/* See also si_pci_setup */
+int bcma_host_pci_irq_ctl(struct bcma_bus *bus, struct bcma_device *core,
+ bool enable)
+{
+ struct pci_dev *pdev;
+ u32 coremask, tmp;
+ int err = 0;
+
+ if (bus->hosttype != BCMA_HOSTTYPE_PCI) {
+ /* This bcma device is not on a PCI host-bus. So the IRQs are
+ * not routed through the PCI core.
+ * So we must not enable routing through the PCI core. */
+ goto out;
+ }
+
+ pdev = bus->host_pci;
+
+ err = pci_read_config_dword(pdev, BCMA_PCI_IRQMASK, &tmp);
+ if (err)
+ goto out;
+
+ coremask = BIT(core->core_index) << 8;
+ if (enable)
+ tmp |= coremask;
+ else
+ tmp &= ~coremask;
+
+ err = pci_write_config_dword(pdev, BCMA_PCI_IRQMASK, tmp);
+
+out:
+ return err;
+}
+EXPORT_SYMBOL_GPL(bcma_host_pci_irq_ctl);
generated by cgit (git 2.34.1) at 2025-12-21 21:45:28 +0000