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ahci: add support for Hisilicon sata

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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.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Kefeng Wang 2014-05-14 14:13:42 +08:00 committed by Tejun Heo
parent f9f3691790
commit a1a205df6e
2 changed files with 9 additions and 1 deletions
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1
Documentation/devicetree/bindings/ata/ahci-platform.txt
View File

@ -8,6 +8,7 @@ Required properties:
- "allwinner,sun4i-a10-ahci" - "allwinner,sun4i-a10-ahci"
- "fsl,imx53-ahci" - "fsl,imx53-ahci"
- "fsl,imx6q-ahci" - "fsl,imx6q-ahci"
- "hisilicon,hisi-ahci"
- "ibm,476gtr-ahci" - "ibm,476gtr-ahci"
- "marvell,armada-380-ahci" - "marvell,armada-380-ahci"
- "snps,dwc-ahci" - "snps,dwc-ahci"

9
drivers/ata/ahci_platform.c
View File

@ -16,6 +16,7 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/pm.h> #include <linux/pm.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/of_device.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/libata.h> #include <linux/libata.h>
#include <linux/ahci_platform.h> #include <linux/ahci_platform.h>
@ -33,6 +34,7 @@ static int ahci_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev; struct device *dev = &pdev->dev;
struct ahci_platform_data *pdata = dev_get_platdata(dev); struct ahci_platform_data *pdata = dev_get_platdata(dev);
struct ahci_host_priv *hpriv; struct ahci_host_priv *hpriv;
unsigned long hflags = 0;
int rc; int rc;
hpriv = ahci_platform_get_resources(pdev); hpriv = ahci_platform_get_resources(pdev);
@ -55,7 +57,11 @@ static int ahci_probe(struct platform_device *pdev)
goto disable_resources; 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) if (rc)
goto pdata_exit; goto pdata_exit;
@ -76,6 +82,7 @@ static const struct of_device_id ahci_of_match[] = {
{ .compatible = "snps,exynos5440-ahci", }, { .compatible = "snps,exynos5440-ahci", },
{ .compatible = "ibm,476gtr-ahci", }, { .compatible = "ibm,476gtr-ahci", },
{ .compatible = "snps,dwc-ahci", }, { .compatible = "snps,dwc-ahci", },
{ .compatible = "hisilicon,hisi-ahci", },
{}, {},
}; };
MODULE_DEVICE_TABLE(of, ahci_of_match); MODULE_DEVICE_TABLE(of, ahci_of_match);