Initial commit: OpenHarmony-v4.0-ReleaseOpenHarmony-v4.0-Release

1 files changed, 52 insertions, 0 deletions

diff --git a/arch/mips/pci/fixup-tb0287.c b/arch/mips/pci/fixup-tb0287.c
new file mode 100644
index 000000000..721ec9ac1
--- /dev/null
+++ b/arch/mips/pci/fixup-tb0287.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  fixup-tb0287.c, The TANBAC TB0287 specific PCI fixups.
+ *
+ *  Copyright (C) 2005  Yoichi Yuasa <yuasa@linux-mips.org>
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <asm/vr41xx/tb0287.h>
+
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        unsigned char bus;
+        int irq = -1;
+
+        bus = dev->bus->number;
+        if (bus == 0) {
+                switch (slot) {
+                case 16:
+                        irq = TB0287_SM501_IRQ;
+                        break;
+                case 17:
+                        irq = TB0287_SIL680A_IRQ;
+                        break;
+                default:
+                        break;
+                }
+        } else if (bus == 1) {
+                switch (PCI_SLOT(dev->devfn)) {
+                case 0:
+                        irq = TB0287_PCI_SLOT_IRQ;
+                        break;
+                case 2:
+                case 3:
+                        irq = TB0287_RTL8110_IRQ;
+                        break;
+                default:
+                        break;
+                }
+        } else if (bus > 1) {
+                irq = TB0287_PCI_SLOT_IRQ;
+        }
+
+        return irq;
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+        return 0;
+}