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-rw-r--r--drivers/ata/ahci.c51
1 files changed, 48 insertions, 3 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index f66e2a50158..11e4eb9f304 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -46,7 +46,7 @@
#include <linux/libata.h>
#define DRV_NAME "ahci"
-#define DRV_VERSION "2.2"
+#define DRV_VERSION "2.3"
enum {
@@ -81,6 +81,7 @@ enum {
board_ahci_vt8251 = 2,
board_ahci_ign_iferr = 3,
board_ahci_sb600 = 4,
+ board_ahci_mv = 5,
/* global controller registers */
HOST_CAP = 0x00, /* host capabilities */
@@ -171,6 +172,8 @@ enum {
AHCI_FLAG_HONOR_PI = (1 << 26), /* honor PORTS_IMPL */
AHCI_FLAG_IGN_SERR_INTERNAL = (1 << 27), /* ignore SERR_INTERNAL */
AHCI_FLAG_32BIT_ONLY = (1 << 28), /* force 32bit */
+ AHCI_FLAG_MV_PATA = (1 << 29), /* PATA port */
+ AHCI_FLAG_NO_MSI = (1 << 30), /* no PCI MSI */
AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
@@ -364,6 +367,18 @@ static const struct ata_port_info ahci_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
+ /* board_ahci_mv */
+ {
+ .sht = &ahci_sht,
+ .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+ ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
+ ATA_FLAG_SKIP_D2H_BSY | AHCI_FLAG_HONOR_PI |
+ AHCI_FLAG_NO_NCQ | AHCI_FLAG_NO_MSI |
+ AHCI_FLAG_MV_PATA,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_ops,
+ },
};
static const struct pci_device_id ahci_pci_tbl[] = {
@@ -459,6 +474,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */
{ PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
+ /* Marvell */
+ { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
+
/* Generic, PCI class code for AHCI */
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci },
@@ -544,6 +562,20 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
hpriv->saved_port_map = port_map;
}
+ /*
+ * Temporary Marvell 6145 hack: PATA port presence
+ * is asserted through the standard AHCI port
+ * presence register, as bit 4 (counting from 0)
+ */
+ if (pi->flags & AHCI_FLAG_MV_PATA) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "MV_AHCI HACK: port_map %x -> %x\n",
+ hpriv->port_map,
+ hpriv->port_map & 0xf);
+
+ port_map &= 0xf;
+ }
+
/* cross check port_map and cap.n_ports */
if (pi->flags & AHCI_FLAG_HONOR_PI) {
u32 tmp_port_map = port_map;
@@ -856,12 +888,25 @@ static void ahci_init_controller(struct ata_host *host)
struct pci_dev *pdev = to_pci_dev(host->dev);
void __iomem *mmio = host->iomap[AHCI_PCI_BAR];
int i;
+ void __iomem *port_mmio;
u32 tmp;
+ if (host->ports[0]->flags & AHCI_FLAG_MV_PATA) {
+ port_mmio = __ahci_port_base(host, 4);
+
+ writel(0, port_mmio + PORT_IRQ_MASK);
+
+ /* clear port IRQ */
+ tmp = readl(port_mmio + PORT_IRQ_STAT);
+ VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp);
+ if (tmp)
+ writel(tmp, port_mmio + PORT_IRQ_STAT);
+ }
+
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
- void __iomem *port_mmio = ahci_port_base(ap);
+ port_mmio = ahci_port_base(ap);
if (ata_port_is_dummy(ap))
continue;
@@ -1738,7 +1783,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;
- if (pci_enable_msi(pdev))
+ if ((pi.flags & AHCI_FLAG_NO_MSI) || pci_enable_msi(pdev))
pci_intx(pdev, 1);
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);