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| author | Jaedon Shin <jaedon.shin@gmail.com> | 2015-11-26 03:56:30 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-11-30 15:57:32 +0100 |
| commit | 7de3244530bf418cefdb64b635ee2d64ef63e3c9 (patch) | |
| tree | 5b10cc1f023807d8c6b1a72f541b4f03f8599884 /drivers/ata/ahci_brcmstb.c | |
| parent | ata: sata_rcar: Remove obsolete platform_device_id entries (diff) | |
| download | linux-7de3244530bf418cefdb64b635ee2d64ef63e3c9.tar.xz linux-7de3244530bf418cefdb64b635ee2d64ef63e3c9.zip | |
ata: ahci_brcmstb: disable NCQ for MIPS-based platforms
The most MIPS-based platforms need to disable NCQ while have the NCQ
capability in HOST_CAP, and several ARM-based platforms (eg. BCM7349A0,
BCM7445A0, BCM7445B0) need to disable too.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/ata/ahci_brcmstb.c')
| -rw-r--r-- | drivers/ata/ahci_brcmstb.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ata/ahci_brcmstb.c b/drivers/ata/ahci_brcmstb.c index 14b7305d2ba0..69b8b0252c58 100644 --- a/drivers/ata/ahci_brcmstb.c +++ b/drivers/ata/ahci_brcmstb.c @@ -69,10 +69,15 @@ (DATA_ENDIAN << DMADESC_ENDIAN_SHIFT) | \ (MMIO_ENDIAN << MMIO_ENDIAN_SHIFT)) +enum brcm_ahci_quirks { + BRCM_AHCI_QUIRK_NO_NCQ = BIT(0), +}; + struct brcm_ahci_priv { struct device *dev; void __iomem *top_ctrl; u32 port_mask; + u32 quirks; }; static const struct ata_port_info ahci_brcm_port_info = { @@ -256,6 +261,9 @@ static int brcm_ahci_probe(struct platform_device *pdev) if (IS_ERR(priv->top_ctrl)) return PTR_ERR(priv->top_ctrl); + if (of_device_is_compatible(dev->of_node, "brcm,bcm7425-ahci")) + priv->quirks |= BRCM_AHCI_QUIRK_NO_NCQ; + brcm_sata_init(priv); priv->port_mask = brcm_ahci_get_portmask(pdev, priv); @@ -273,6 +281,9 @@ static int brcm_ahci_probe(struct platform_device *pdev) if (ret) return ret; + if (priv->quirks & BRCM_AHCI_QUIRK_NO_NCQ) + hpriv->flags |= AHCI_HFLAG_NO_NCQ; + ret = ahci_platform_init_host(pdev, hpriv, &ahci_brcm_port_info, &ahci_platform_sht); if (ret) |