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Commit a1a205df authored by Kefeng Wang's avatar Kefeng Wang Committed by Tejun Heo
Browse files

ahci: add support for Hisilicon sata 



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: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarKefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent f9f36917

Documentation/devicetree/bindings/ata/ahci-platform.txt

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ Required properties: 
  - "allwinner,sun4i-a10-ahci"

  - "fsl,imx53-ahci"

  - "fsl,imx6q-ahci"

  - "hisilicon,hisi-ahci"

  - "ibm,476gtr-ahci"

  - "marvell,armada-380-ahci"

  - "snps,dwc-ahci"

drivers/ata/ahci_platform.c

+8 −1
Original line number Diff line number Diff line
@@ -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 long 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;
@@ -76,6 +82,7 @@ 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);