From: Lior Amsalem <alior@xxxxxxxxxxx>
From: Lior Amsalem <alior@xxxxxxxxxxx>
This patch fixes a SATA hotplug issue on the Armada 370 and Armada XP
SoCs. Without it, if a disk is unplugged from a SATA port, then further
hotplug notification are now longer received on this port.
This should be applied to every -stable kernel supporting Armada SoCs.
Signed-off-by: Lior Amsalem <alior@xxxxxxxxxxx>
Signed-off-by: Nadav Haklai <nadavh@xxxxxxxxxxx>
Signed-off-by: Simon Guinot <simon.guinot@xxxxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Andrew Lunn <andrew@xxxxxxx>
Cc: Gregory Clement <gregory.clement@xxxxxxxxxxxxxxxxxx>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/ata/sata_mv.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 56be318..89ca472 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -304,6 +304,7 @@ enum {
MV5_LTMODE = 0x30,
MV5_PHY_CTL = 0x0C,
SATA_IFCFG = 0x050,
+ LP_PHY_CTL = 0x058,
MV_M2_PREAMP_MASK = 0x7e0,
@@ -1358,6 +1359,7 @@ static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
if (ofs != 0xffffffffU) {
void __iomem *addr = mv_ap_base(link->ap) + ofs;
+ void __iomem *lp_phy_addr = mv_ap_base(link->ap) + LP_PHY_CTL;
if (sc_reg_in == SCR_CONTROL) {
/*
* Workaround for 88SX60x1 FEr SATA#26:
@@ -1374,6 +1376,14 @@ static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
*/
if ((val & 0xf) == 1 || (readl(addr) & 0xf) == 1)
val |= 0xf000;
+
+ /*
+ * Setting PHY speed according to SControl speed
+ */
+ if ((val & 0xf0) == 0x10)
+ writelfl(0x7, lp_phy_addr);
+ else
+ writelfl(0x227, lp_phy_addr);
}
writelfl(val, addr);
return 0;
--
1.8.5.1
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