[libata sata_promise] Do not attempt to use SATA phy on PATA controllers

1 files changed, 43 insertions, 7 deletions

diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 919fb314ad10..ad31b8afec6f 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -79,7 +79,8 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *r
 static void pdc_eng_timeout(struct ata_port *ap);
 static int pdc_port_start(struct ata_port *ap);
 static void pdc_port_stop(struct ata_port *ap);
-static void pdc_phy_reset(struct ata_port *ap);
+static void pdc_pata_phy_reset(struct ata_port *ap);
+static void pdc_sata_phy_reset(struct ata_port *ap);
 static void pdc_qc_prep(struct ata_queued_cmd *qc);
 static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
 static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
@@ -106,19 +107,22 @@ static Scsi_Host_Template pdc_ata_sht = {
         .ordered_flush          = 1,
 };
 
-static struct ata_port_operations pdc_ata_ops = {
+static struct ata_port_operations pdc_sata_ops = {
         .port_disable           = ata_port_disable,
         .tf_load                = pdc_tf_load_mmio,
         .tf_read                = ata_tf_read,
         .check_status           = ata_check_status,
         .exec_command           = pdc_exec_command_mmio,
         .dev_select             = ata_std_dev_select,
-        .phy_reset              = pdc_phy_reset,
+
+        .phy_reset              = pdc_sata_phy_reset,
+
         .qc_prep                = pdc_qc_prep,
         .qc_issue               = pdc_qc_issue_prot,
         .eng_timeout            = pdc_eng_timeout,
         .irq_handler            = pdc_interrupt,
         .irq_clear              = pdc_irq_clear,
+
         .scr_read               = pdc_sata_scr_read,
         .scr_write              = pdc_sata_scr_write,
         .port_start             = pdc_port_start,
@@ -126,6 +130,27 @@ static struct ata_port_operations pdc_ata_ops = {
         .host_stop              = ata_host_stop,
 };
 
+static struct ata_port_operations pdc_pata_ops = {
+        .port_disable           = ata_port_disable,
+        .tf_load                = pdc_tf_load_mmio,
+        .tf_read                = ata_tf_read,
+        .check_status           = ata_check_status,
+        .exec_command           = pdc_exec_command_mmio,
+        .dev_select             = ata_std_dev_select,
+
+        .phy_reset              = pdc_pata_phy_reset,
+
+        .qc_prep                = pdc_qc_prep,
+        .qc_issue               = pdc_qc_issue_prot,
+        .eng_timeout            = pdc_eng_timeout,
+        .irq_handler            = pdc_interrupt,
+        .irq_clear              = pdc_irq_clear,
+
+        .port_start             = pdc_port_start,
+        .port_stop              = pdc_port_stop,
+        .host_stop              = ata_host_stop,
+};
+
 static struct ata_port_info pdc_port_info[] = {
         /* board_2037x */
         {
@@ -135,7 +160,7 @@ static struct ata_port_info pdc_port_info[] = {
                 .pio_mask       = 0x1f, /* pio0-4 */
                 .mwdma_mask     = 0x07, /* mwdma0-2 */
                 .udma_mask      = 0x7f, /* udma0-6 ; FIXME */
-                .port_ops       = &pdc_ata_ops,
+                .port_ops       = &pdc_sata_ops,
         },
 
         /* board_20319 */
@@ -146,7 +171,7 @@ static struct ata_port_info pdc_port_info[] = {
                 .pio_mask       = 0x1f, /* pio0-4 */
                 .mwdma_mask     = 0x07, /* mwdma0-2 */
                 .udma_mask      = 0x7f, /* udma0-6 ; FIXME */
-                .port_ops       = &pdc_ata_ops,
+                .port_ops       = &pdc_sata_ops,
         },
 
         /* board_20619 */
@@ -157,7 +182,7 @@ static struct ata_port_info pdc_port_info[] = {
                 .pio_mask       = 0x1f, /* pio0-4 */
                 .mwdma_mask     = 0x07, /* mwdma0-2 */
                 .udma_mask      = 0x7f, /* udma0-6 ; FIXME */
-                .port_ops       = &pdc_ata_ops,
+                .port_ops       = &pdc_pata_ops,
         },
 };
 
@@ -268,12 +293,23 @@ static void pdc_reset_port(struct ata_port *ap)
         readl(mmio);    /* flush */
 }
 
-static void pdc_phy_reset(struct ata_port *ap)
+static void pdc_sata_phy_reset(struct ata_port *ap)
 {
         pdc_reset_port(ap);
         sata_phy_reset(ap);
 }
 
+static void pdc_pata_phy_reset(struct ata_port *ap)
+{
+        /* FIXME: add cable detect.  Don't assume 40-pin cable */
+        ap->cbl = ATA_CBL_PATA40;
+        ap->udma_mask &= ATA_UDMA_MASK_40C;
+
+        pdc_reset_port(ap);
+        ata_port_probe(ap);
+        ata_bus_reset(ap);
+}
+
 static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
 {
         if (sc_reg > SCR_CONTROL)