diff options
| author | Ximing Chen <ximingc@nvidia.com> | 2014-08-26 19:40:04 +0800 |
|---|---|---|
| committer | Matthew Pedro <mapedro@nvidia.com> | 2014-12-17 09:21:19 -0800 |
| commit | 3a04975eab73f9a854ccd15ed0409202f6eb32a4 (patch) | |
| tree | 7046cfe16970e0a30e859af402fe811d60378464 /drivers/ata | |
| parent | f99c51b9ed13e1bdf18032f299399468e5dd301d (diff) | |
SATA: Add Port Multiplier support
Current SATA controller configuration disables PM.
This CL is to enable it.
Support for direct SATA devices has no change.
Bug 1544067
Change-Id: I8f5e2161b687e07608228b9aafb7018808fe0203
Signed-off-by: Ximing Chen <ximingc@nvidia.com>
Reviewed-on: http://git-master/r/488162
(Cherry-picked from commit 9a2e7092d0d4977ebbb296b3f1352e6847a2496c)
Reviewed-on: http://git-master/r/493955
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: Preetham Chandru <pchandru@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/ahci-tegra.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/ahci-tegra.c b/drivers/ata/ahci-tegra.c index 58b56a86605d..3b78f7a1d390 100644 --- a/drivers/ata/ahci-tegra.c +++ b/drivers/ata/ahci-tegra.c @@ -1129,7 +1129,7 @@ static int tegra_ahci_controller_init(struct tegra_ahci_host_priv *tegra_hpriv, SATA_FPCI_BAR5_0_OFFSET); val = scfg_readl(T_SATA0_AHCI_HBA_CAP_BKDR); - val |= (HOST_CAP_ALPM | HOST_CAP_SSC | HOST_CAP_PART); + val |= (HOST_CAP_ALPM | HOST_CAP_SSC | HOST_CAP_PART | HOST_CAP_PMP); scfg_writel(val, T_SATA0_AHCI_HBA_CAP_BKDR); /* Second Level Clock Gating*/ @@ -2488,6 +2488,8 @@ static int tegra_ahci_init_one(struct platform_device *pdev) pi.flags |= ATA_FLAG_NCQ; pi.flags |= ATA_FLAG_FPDMA_AA; } + if (hpriv->cap & HOST_CAP_PMP) + pi.flags |= ATA_FLAG_PMP; /* * CAP.NP sometimes indicate the index of the last enabled |