Implement sil24_init_port which performs port initialization via
PORT_CS_INIT. To be used later by softreset and EH.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/sata_sil24.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
85433646e8335528b6cd754efa8c8b9607c6c340
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 5f3a17d..ccb442f 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -438,6 +438,22 @@ static void sil24_tf_read(struct ata_por
*tf = pp->tf;
}
+static int sil24_init_port(struct ata_port *ap)
+{
+ void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
+ u32 tmp;
+
+ writel(PORT_CS_INIT, port + PORT_CTRL_STAT);
+ ata_wait_register(port + PORT_CTRL_STAT,
+ PORT_CS_INIT, PORT_CS_INIT, 10, 100);
+ tmp = ata_wait_register(port + PORT_CTRL_STAT,
+ PORT_CS_RDY, 0, 10, 100);
+
+ if ((tmp & (PORT_CS_INIT | PORT_CS_RDY)) != PORT_CS_RDY)
+ return -EIO;
+ return 0;
+}
+
static int sil24_softreset(struct ata_port *ap, unsigned int *class)
{
void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
--
1.2.4
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