[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-footbridge/personal-pci.c b/src/kernel/linux/v4.14/arch/arm/mach-footbridge/personal-pci.c
new file mode 100644
index 0000000..4391e43
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-footbridge/personal-pci.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/arm/mach-footbridge/personal-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>
+
+static int irqmap_personal_server[] __initdata = {
+ IRQ_IN0, IRQ_IN1, IRQ_IN2, IRQ_IN3, 0, 0, 0,
+ IRQ_DOORBELLHOST, IRQ_DMA1, IRQ_DMA2, IRQ_PCI
+};
+
+static int __init personal_server_map_irq(const struct pci_dev *dev, u8 slot,
+ u8 pin)
+{
+ unsigned char line;
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line);
+
+ if (line > 0x40 && line <= 0x5f) {
+ /* line corresponds to the bit controlling this interrupt
+ * in the footbridge. Ignore the first 8 interrupt bits,
+ * look up the rest in the map. IN0 is bit number 8
+ */
+ return irqmap_personal_server[(line & 0x1f) - 8];
+ } else if (line == 0) {
+ /* no interrupt */
+ return 0;
+ } else
+ return irqmap_personal_server[(line - 1) & 3];
+}
+
+static struct hw_pci personal_server_pci __initdata = {
+ .map_irq = personal_server_map_irq,
+ .nr_controllers = 1,
+ .ops = &dc21285_ops,
+ .setup = dc21285_setup,
+ .preinit = dc21285_preinit,
+ .postinit = dc21285_postinit,
+};
+
+static int __init personal_pci_init(void)
+{
+ if (machine_is_personal_server())
+ pci_common_init(&personal_server_pci);
+ return 0;
+}
+
+subsys_initcall(personal_pci_init);