From: Kefeng Wang <kefeng.w...@linaro.org>
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.
Cc: Hans de Geode <hdego...@redhat.com>
Signed-off-by: Kefeng Wang <kefeng.w...@linaro.org>
---
.../devicetree/bindings/ata/ahci-platform.txt | 3 ++-
drivers/ata/ahci_platform.c | 6 +++++-
2 files changed, 7 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 ef67e79..2ee1923 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -32,6 +32,7 @@ static int ahci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ahci_platform_data *pdata = dev_get_platdata(dev);
+ struct ata_port_info pi = ahci_port_info;
struct ahci_host_priv *hpriv;
int rc;
@@ -54,8 +55,10 @@ static int ahci_probe(struct platform_device *pdev)
if (rc)
goto disable_resources;
}
+ if (of_device_is_compatible(pdev->dev.of_node, "hisilicon,hisi-ahci"))
+ pi.private_data = (void *)AHCI_HFLAG_NO_FBS;
- rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info, 0, 0);
+ rc = ahci_platform_init_host(pdev, hpriv, &pi, 0, 0);
if (rc)
goto pdata_exit;
@@ -76,6 +79,7 @@ static const struct of_device_id ahci_of_match[] = {
{ .compatible = "snps,exynos5440-ahci", },
{ .compatible = "ibm,476gtr-ahci", },
{ .compatible = "snps,dwc-ahci", },
+ { .compatible = "hisilicon,hisi-ahci", },
{},
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
--
1.7.1
--
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