[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/ata/pata_marvell.c b/src/kernel/linux/v4.14/drivers/ata/pata_marvell.c
new file mode 100644
index 0000000..ff468a6
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/ata/pata_marvell.c
@@ -0,0 +1,186 @@
+/*
+ * Marvell PATA driver.
+ *
+ * For the moment we drive the PATA port in legacy mode. That
+ * isn't making full use of the device functionality but it is
+ * easy to get working.
+ *
+ * (c) 2006 Red Hat
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+#include <linux/ata.h>
+
+#define DRV_NAME "pata_marvell"
+#define DRV_VERSION "0.1.6"
+
+/**
+ * marvell_pata_active - check if PATA is active
+ * @pdev: PCI device
+ *
+ * Returns 1 if the PATA port may be active. We know how to check this
+ * for the 6145 but not the other devices
+ */
+
+static int marvell_pata_active(struct pci_dev *pdev)
+{
+ int i;
+ u32 devices;
+ void __iomem *barp;
+
+ /* We don't yet know how to do this for other devices */
+ if (pdev->device != 0x6145)
+ return 1;
+
+ barp = pci_iomap(pdev, 5, 0x10);
+ if (barp == NULL)
+ return -ENOMEM;
+
+ printk("BAR5:");
+ for(i = 0; i <= 0x0F; i++)
+ printk("%02X:%02X ", i, ioread8(barp + i));
+ printk("\n");
+
+ devices = ioread32(barp + 0x0C);
+ pci_iounmap(pdev, barp);
+
+ if (devices & 0x10)
+ return 1;
+ return 0;
+}
+
+/**
+ * marvell_pre_reset - probe begin
+ * @link: link
+ * @deadline: deadline jiffies for the operation
+ *
+ * Perform the PATA port setup we need.
+ */
+
+static int marvell_pre_reset(struct ata_link *link, unsigned long deadline)
+{
+ struct ata_port *ap = link->ap;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (pdev->device == 0x6145 && ap->port_no == 0 &&
+ !marvell_pata_active(pdev)) /* PATA enable ? */
+ return -ENOENT;
+
+ return ata_sff_prereset(link, deadline);
+}
+
+static int marvell_cable_detect(struct ata_port *ap)
+{
+ /* Cable type */
+ switch(ap->port_no)
+ {
+ case 0:
+ if (ioread8(ap->ioaddr.bmdma_addr + 1) & 1)
+ return ATA_CBL_PATA40;
+ return ATA_CBL_PATA80;
+ case 1: /* Legacy SATA port */
+ return ATA_CBL_SATA;
+ }
+
+ BUG();
+ return 0; /* Our BUG macro needs the right markup */
+}
+
+/* No PIO or DMA methods needed for this device */
+
+static struct scsi_host_template marvell_sht = {
+ ATA_BMDMA_SHT(DRV_NAME),
+};
+
+static struct ata_port_operations marvell_ops = {
+ .inherits = &ata_bmdma_port_ops,
+ .cable_detect = marvell_cable_detect,
+ .prereset = marvell_pre_reset,
+};
+
+
+/**
+ * marvell_init_one - Register Marvell ATA PCI device with kernel services
+ * @pdev: PCI device to register
+ * @ent: Entry in marvell_pci_tbl matching with @pdev
+ *
+ * Called from kernel PCI layer.
+ *
+ * LOCKING:
+ * Inherited from PCI layer (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, or -ERRNO value.
+ */
+
+static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ static const struct ata_port_info info = {
+ .flags = ATA_FLAG_SLAVE_POSS,
+
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
+
+ .port_ops = &marvell_ops,
+ };
+ static const struct ata_port_info info_sata = {
+ /* Slave possible as its magically mapped not real */
+ .flags = ATA_FLAG_SLAVE_POSS,
+
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+
+ .port_ops = &marvell_ops,
+ };
+ const struct ata_port_info *ppi[] = { &info, &info_sata };
+
+ if (pdev->device == 0x6101)
+ ppi[1] = &ata_dummy_port_info;
+
+#if IS_ENABLED(CONFIG_SATA_AHCI)
+ if (!marvell_pata_active(pdev)) {
+ printk(KERN_INFO DRV_NAME ": PATA port not active, deferring to AHCI driver.\n");
+ return -ENODEV;
+ }
+#endif
+ return ata_pci_bmdma_init_one(pdev, ppi, &marvell_sht, NULL, 0);
+}
+
+static const struct pci_device_id marvell_pci_tbl[] = {
+ { PCI_DEVICE(0x11AB, 0x6101), },
+ { PCI_DEVICE(0x11AB, 0x6121), },
+ { PCI_DEVICE(0x11AB, 0x6123), },
+ { PCI_DEVICE(0x11AB, 0x6145), },
+ { PCI_DEVICE(0x1B4B, 0x91A0), },
+ { PCI_DEVICE(0x1B4B, 0x91A4), },
+
+ { } /* terminate list */
+};
+
+static struct pci_driver marvell_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = marvell_pci_tbl,
+ .probe = marvell_init_one,
+ .remove = ata_pci_remove_one,
+#ifdef CONFIG_PM_SLEEP
+ .suspend = ata_pci_device_suspend,
+ .resume = ata_pci_device_resume,
+#endif
+};
+
+module_pci_driver(marvell_pci_driver);
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("SCSI low-level driver for Marvell ATA in legacy mode");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, marvell_pci_tbl);
+MODULE_VERSION(DRV_VERSION);