diff options
Diffstat (limited to 'drivers/ata/sata_mv.c')
| -rw-r--r-- | drivers/ata/sata_mv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 969a7698778..17093e600d8 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -72,7 +72,7 @@ #include <linux/libata.h> #define DRV_NAME "sata_mv" -#define DRV_VERSION "1.22" +#define DRV_VERSION "1.23" enum { /* BAR's are enumerated in terms of pci_resource_start() terms */ @@ -2557,7 +2557,6 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, */ m3 = readl(port_mmio + PHY_MODE3); m3 = (m3 & 0x1f) | (0x5555601 << 5); - writel(m3, port_mmio + PHY_MODE3); if (fix_phy_mode4) { u32 m4; @@ -2573,6 +2572,12 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, writel(m4, port_mmio + PHY_MODE4); } + /* + * Workaround for 60x1-B2 errata SATA#13: + * Any write to PHY_MODE4 (above) may corrupt PHY_MODE3, + * so we must always rewrite PHY_MODE3 after PHY_MODE4. + */ + writel(m3, port_mmio + PHY_MODE3); /* Revert values of pre-emphasis and signal amps to the saved ones */ m2 = readl(port_mmio + PHY_MODE2); |