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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
commitb4b7ff4b08e691656c9d77c758fc355833128ac0 (patch)
tree82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/ata/libahci.c
parent35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff)
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/ata/libahci.c')
-rw-r--r--drivers/ata/libahci.c39
1 files changed, 20 insertions, 19 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 737523162..89254bb3e 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1132,6 +1132,7 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
int port_no, void __iomem *mmio,
void __iomem *port_mmio)
{
+ struct ahci_host_priv *hpriv = ap->host->private_data;
const char *emsg = NULL;
int rc;
u32 tmp;
@@ -1153,6 +1154,12 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
writel(tmp, port_mmio + PORT_IRQ_STAT);
writel(1 << port_no, mmio + HOST_IRQ_STAT);
+
+ /* mark esata ports */
+ tmp = readl(port_mmio + PORT_CMD);
+ if ((tmp & PORT_CMD_HPCP) ||
+ ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)))
+ ap->pflags |= ATA_PFLAG_EXTERNAL;
}
void ahci_init_controller(struct ata_host *host)
@@ -1281,6 +1288,15 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
ata_tf_to_fis(tf, pmp, is_cmd, fis);
ahci_fill_cmd_slot(pp, 0, cmd_fis_len | flags | (pmp << 12));
+ /* set port value for softreset of Port Multiplier */
+ if (pp->fbs_enabled && pp->fbs_last_dev != pmp) {
+ tmp = readl(port_mmio + PORT_FBS);
+ tmp &= ~(PORT_FBS_DEV_MASK | PORT_FBS_DEC);
+ tmp |= pmp << PORT_FBS_DEV_OFFSET;
+ writel(tmp, port_mmio + PORT_FBS);
+ pp->fbs_last_dev = pmp;
+ }
+
/* issue & wait */
writel(1, port_mmio + PORT_CMD_ISSUE);
@@ -2540,28 +2556,13 @@ static int ahci_host_activate_multi_irqs(struct ata_host *host, int irq,
rc = devm_request_threaded_irq(host->dev, irq + i,
ahci_multi_irqs_intr,
- ahci_port_thread_fn, IRQF_SHARED,
+ ahci_port_thread_fn, 0,
pp->irq_desc, host->ports[i]);
if (rc)
- goto out_free_irqs;
- }
-
- for (i = 0; i < host->n_ports; i++)
+ return rc;
ata_port_desc(host->ports[i], "irq %d", irq + i);
-
- rc = ata_host_register(host, sht);
- if (rc)
- goto out_free_all_irqs;
-
- return 0;
-
-out_free_all_irqs:
- i = host->n_ports;
-out_free_irqs:
- for (i--; i >= 0; i--)
- devm_free_irq(host->dev, irq + i, host->ports[i]);
-
- return rc;
+ }
+ return ata_host_register(host, sht);
}
/**