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-rw-r--r--target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c b/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c
index 02f3a8cc4..139af940a 100644
--- a/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c
+++ b/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c
@@ -29,6 +29,7 @@
static void __iomem *ar724x_pci_localcfg_base;
static void __iomem *ar724x_pci_devcfg_base;
+static int ar724x_pci_fixup_enable;
static DEFINE_SPINLOCK(ar724x_pci_lock);
@@ -128,6 +129,27 @@ static int ar724x_pci_write_config(struct pci_bus *bus, unsigned int devfn,
return PCIBIOS_SUCCESSFUL;
}
+static void ar724x_pci_fixup(struct pci_dev *dev)
+{
+ u32 t;
+
+ if (!ar724x_pci_fixup_enable)
+ return;
+
+ if (dev->bus->number != 0 || dev->devfn != 0)
+ return;
+
+ DBG("PCI: fixup host controller %s (%04x:%04x)\n", pci_name(dev),
+ dev->vendor, dev->device);
+
+ /* setup COMMAND register */
+ t = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE
+ | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK;
+
+ pci_write_config_word(dev, PCI_COMMAND, t);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ar724x_pci_fixup);
+
int __init ar724x_pcibios_map_irq(const struct pci_dev *dev, uint8_t slot,
uint8_t pin)
{
@@ -195,6 +217,7 @@ int __init ar724x_pcibios_init(void)
ar724x_pci_write(ar724x_pci_localcfg_base, PCI_COMMAND, 4, t);
+ ar724x_pci_fixup_enable = 1;
register_pci_controller(&ar724x_pci_controller);
return 0;