Make sure the controller has no pending commands and ready for command
before issuing SRST.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/sata_sil24.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
522c4966f33a80e263e018bbeb1a8a84bd1087e8
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index f50a728..e9058f0 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -470,6 +470,15 @@ static int sil24_softreset(struct ata_po
irq_enable = readl(port + PORT_IRQ_ENABLE_SET);
writel(irq_enable, port + PORT_IRQ_ENABLE_CLR);
+ /* put the port into known state */
+ writel(PORT_CS_INIT, port + PORT_CTRL_STAT);
+ if (sil24_poll_register(port + PORT_CTRL_STAT,
+ PORT_CS_INIT | PORT_CS_RDY, PORT_CS_RDY,
+ 10, 100)) {
+ DPRINTK("port not ready\n");
+ return -EIO;
+ }
+
/*
* XXX: Not sure whether the following sleep is needed or not.
* The original driver had it. So....
--
1.2.4
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