The hip04 SoC of hisilicon has an AHCI compliant SATA controller, and it is compliant with the ahci 1.3 and sata 3.0 specification. There is a wrong bit in HOST_CAP of hip04 sata controller, which enable unsupported feature of FBS, use AHCI_HFLAG_NO_FBS hflag to disable it. Signed-off-by: Kefeng Wang <kefeng.wang@xxxxxxxxxx> --- .../devicetree/bindings/ata/ahci-platform.txt | 3 ++- drivers/ata/ahci_platform.c | 8 +++++++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt index 48b285f..aab1d70 100644 --- a/Documentation/devicetree/bindings/ata/ahci-platform.txt +++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt @@ -7,7 +7,8 @@ Required properties: - compatible : compatible list, one of "snps,spear-ahci", "snps,exynos5440-ahci", "ibm,476gtr-ahci", "allwinner,sun4i-a10-ahci", "fsl,imx53-ahci" - "fsl,imx6q-ahci" or "snps,dwc-ahci" + "fsl,imx6q-ahci", "snps,dwc-ahci" or + "hisilicon,hisi-ahci" - interrupts : <interrupt mapping for SATA IRQ> - reg : <registers mapping> diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index a476a1f..10d41c3 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <linux/pm.h> #include <linux/device.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/libata.h> #include <linux/ahci_platform.h> @@ -33,6 +34,7 @@ static int ahci_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct ahci_platform_data *pdata = dev_get_platdata(dev); struct ahci_host_priv *hpriv; + unsigned int hflags = 0; int rc; hpriv = ahci_platform_get_resources(pdev); @@ -55,7 +57,11 @@ static int ahci_probe(struct platform_device *pdev) goto disable_resources; } - rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info, 0, 0, 0); + if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci")) + hflags |= AHCI_HFLAG_NO_FBS; + + rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info, + hflags, 0, 0); if (rc) goto pdata_exit; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html