[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-footbridge/cats-pci.c b/src/kernel/linux/v4.14/arch/arm/mach-footbridge/cats-pci.c
new file mode 100644
index 0000000..0b2fd7e
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-footbridge/cats-pci.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/arm/mach-footbridge/cats-pci.c
+ *
+ * PCI bios-type initialisation for PCI machines
+ *
+ * Bits taken from various places.
+ */
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+/* cats host-specific stuff */
+static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
+
+static u8 cats_no_swizzle(struct pci_dev *dev, u8 *pin)
+{
+ return 0;
+}
+
+static int __init cats_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (dev->irq >= 255)
+ return -1; /* not a valid interrupt. */
+
+ if (dev->irq >= 128)
+ return dev->irq & 0x1f;
+
+ if (dev->irq >= 1 && dev->irq <= 4)
+ return irqmap_cats[dev->irq - 1];
+
+ if (dev->irq != 0)
+ printk("PCI: device %02x:%02x has unknown irq line %x\n",
+ dev->bus->number, dev->devfn, dev->irq);
+
+ return -1;
+}
+
+/*
+ * why not the standard PCI swizzle? does this prevent 4-port tulip
+ * cards being used (ie, pci-pci bridge based cards)?
+ */
+static struct hw_pci cats_pci __initdata = {
+ .swizzle = cats_no_swizzle,
+ .map_irq = cats_map_irq,
+ .nr_controllers = 1,
+ .ops = &dc21285_ops,
+ .setup = dc21285_setup,
+ .preinit = dc21285_preinit,
+ .postinit = dc21285_postinit,
+};
+
+static int __init cats_pci_init(void)
+{
+ if (machine_is_cats())
+ pci_common_init(&cats_pci);
+ return 0;
+}
+
+subsys_initcall(cats_pci_init);