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@@ -11,7 +11,11 @@
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#include <linux/pci.h>
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#include <linux/pci.h>
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#include <linux/acpi.h>
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#include <linux/acpi.h>
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+#include <linux/delay.h>
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+#include <linux/dmi.h>
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#include <linux/pci_ids.h>
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#include <linux/pci_ids.h>
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+#include <linux/bcma/bcma.h>
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+#include <linux/bcma/bcma_regs.h>
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#include <drm/i915_drm.h>
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#include <drm/i915_drm.h>
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#include <asm/pci-direct.h>
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#include <asm/pci-direct.h>
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#include <asm/dma.h>
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#include <asm/dma.h>
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@@ -21,6 +25,9 @@
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#include <asm/iommu.h>
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#include <asm/iommu.h>
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#include <asm/gart.h>
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#include <asm/gart.h>
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#include <asm/irq_remapping.h>
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#include <asm/irq_remapping.h>
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+#include <asm/early_ioremap.h>
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+
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+#define dev_err(msg) pr_err("pci 0000:%02x:%02x.%d: %s", bus, slot, func, msg)
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static void __init fix_hypertransport_config(int num, int slot, int func)
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static void __init fix_hypertransport_config(int num, int slot, int func)
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{
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{
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@@ -75,6 +82,13 @@ static void __init nvidia_bugs(int num, int slot, int func)
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{
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{
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#ifdef CONFIG_ACPI
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#ifdef CONFIG_ACPI
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#ifdef CONFIG_X86_IO_APIC
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#ifdef CONFIG_X86_IO_APIC
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+ /*
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+ * Only applies to Nvidia root ports (bus 0) and not to
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+ * Nvidia graphics cards with PCI ports on secondary buses.
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+ */
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+ if (num)
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+ return;
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+
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/*
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/*
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* All timer overrides on Nvidia are
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* All timer overrides on Nvidia are
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* wrong unless HPET is enabled.
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* wrong unless HPET is enabled.
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@@ -590,6 +604,61 @@ static void __init force_disable_hpet(int num, int slot, int func)
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#endif
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#endif
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}
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}
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+#define BCM4331_MMIO_SIZE 16384
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+#define BCM4331_PM_CAP 0x40
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+#define bcma_aread32(reg) ioread32(mmio + 1 * BCMA_CORE_SIZE + reg)
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+#define bcma_awrite32(reg, val) iowrite32(val, mmio + 1 * BCMA_CORE_SIZE + reg)
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+
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+static void __init apple_airport_reset(int bus, int slot, int func)
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+{
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+ void __iomem *mmio;
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+ u16 pmcsr;
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+ u64 addr;
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+ int i;
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+
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+ if (!dmi_match(DMI_SYS_VENDOR, "Apple Inc."))
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+ return;
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+
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+ /* Card may have been put into PCI_D3hot by grub quirk */
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+ pmcsr = read_pci_config_16(bus, slot, func, BCM4331_PM_CAP + PCI_PM_CTRL);
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+
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+ if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) {
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+ pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
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+ write_pci_config_16(bus, slot, func, BCM4331_PM_CAP + PCI_PM_CTRL, pmcsr);
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+ mdelay(10);
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+
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+ pmcsr = read_pci_config_16(bus, slot, func, BCM4331_PM_CAP + PCI_PM_CTRL);
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+ if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) {
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+ dev_err("Cannot power up Apple AirPort card\n");
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+ return;
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+ }
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+ }
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+
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+ addr = read_pci_config(bus, slot, func, PCI_BASE_ADDRESS_0);
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+ addr |= (u64)read_pci_config(bus, slot, func, PCI_BASE_ADDRESS_1) << 32;
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+ addr &= PCI_BASE_ADDRESS_MEM_MASK;
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+
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+ mmio = early_ioremap(addr, BCM4331_MMIO_SIZE);
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+ if (!mmio) {
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+ dev_err("Cannot iomap Apple AirPort card\n");
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+ return;
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+ }
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+
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+ pr_info("Resetting Apple AirPort card (left enabled by EFI)\n");
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+
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+ for (i = 0; bcma_aread32(BCMA_RESET_ST) && i < 30; i++)
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+ udelay(10);
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+
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+ bcma_awrite32(BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
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+ bcma_aread32(BCMA_RESET_CTL);
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+ udelay(1);
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+
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+ bcma_awrite32(BCMA_RESET_CTL, 0);
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+ bcma_aread32(BCMA_RESET_CTL);
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+ udelay(10);
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+
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+ early_iounmap(mmio, BCM4331_MMIO_SIZE);
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+}
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#define QFLAG_APPLY_ONCE 0x1
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#define QFLAG_APPLY_ONCE 0x1
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#define QFLAG_APPLIED 0x2
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#define QFLAG_APPLIED 0x2
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@@ -603,12 +672,6 @@ struct chipset {
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void (*f)(int num, int slot, int func);
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void (*f)(int num, int slot, int func);
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};
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};
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-/*
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- * Only works for devices on the root bus. If you add any devices
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- * not on bus 0 readd another loop level in early_quirks(). But
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- * be careful because at least the Nvidia quirk here relies on
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- * only matching on bus 0.
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- */
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static struct chipset early_qrk[] __initdata = {
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static struct chipset early_qrk[] __initdata = {
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{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
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{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
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PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
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PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
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@@ -638,9 +701,13 @@ static struct chipset early_qrk[] __initdata = {
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*/
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*/
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{ PCI_VENDOR_ID_INTEL, 0x0f00,
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{ PCI_VENDOR_ID_INTEL, 0x0f00,
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PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
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PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
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+ { PCI_VENDOR_ID_BROADCOM, 0x4331,
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+ PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
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{}
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{}
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};
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};
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+static void __init early_pci_scan_bus(int bus);
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+
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/**
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/**
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* check_dev_quirk - apply early quirks to a given PCI device
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* check_dev_quirk - apply early quirks to a given PCI device
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* @num: bus number
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* @num: bus number
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@@ -649,7 +716,7 @@ static struct chipset early_qrk[] __initdata = {
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*
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*
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* Check the vendor & device ID against the early quirks table.
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* Check the vendor & device ID against the early quirks table.
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*
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*
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- * If the device is single function, let early_quirks() know so we don't
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+ * If the device is single function, let early_pci_scan_bus() know so we don't
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* poke at this device again.
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* poke at this device again.
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*/
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*/
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static int __init check_dev_quirk(int num, int slot, int func)
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static int __init check_dev_quirk(int num, int slot, int func)
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@@ -658,6 +725,7 @@ static int __init check_dev_quirk(int num, int slot, int func)
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u16 vendor;
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u16 vendor;
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u16 device;
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u16 device;
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u8 type;
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u8 type;
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+ u8 sec;
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int i;
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int i;
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class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE);
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class = read_pci_config_16(num, slot, func, PCI_CLASS_DEVICE);
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@@ -685,25 +753,36 @@ static int __init check_dev_quirk(int num, int slot, int func)
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type = read_pci_config_byte(num, slot, func,
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type = read_pci_config_byte(num, slot, func,
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PCI_HEADER_TYPE);
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PCI_HEADER_TYPE);
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+
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+ if ((type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
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+ sec = read_pci_config_byte(num, slot, func, PCI_SECONDARY_BUS);
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+ if (sec > num)
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+ early_pci_scan_bus(sec);
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+ }
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+
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if (!(type & 0x80))
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if (!(type & 0x80))
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return -1;
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return -1;
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return 0;
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return 0;
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}
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}
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-void __init early_quirks(void)
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+static void __init early_pci_scan_bus(int bus)
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{
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{
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int slot, func;
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int slot, func;
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- if (!early_pci_allowed())
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- return;
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-
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/* Poor man's PCI discovery */
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/* Poor man's PCI discovery */
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- /* Only scan the root bus */
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for (slot = 0; slot < 32; slot++)
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for (slot = 0; slot < 32; slot++)
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for (func = 0; func < 8; func++) {
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for (func = 0; func < 8; func++) {
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/* Only probe function 0 on single fn devices */
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/* Only probe function 0 on single fn devices */
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- if (check_dev_quirk(0, slot, func))
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+ if (check_dev_quirk(bus, slot, func))
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break;
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break;
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}
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}
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}
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}
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+
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+void __init early_quirks(void)
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+{
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+ if (!early_pci_allowed())
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+ return;
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+
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+ early_pci_scan_bus(0);
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+}
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