From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752720AbaDYJAw (ORCPT ); Fri, 25 Apr 2014 05:00:52 -0400 Received: from mail-pd0-f174.google.com ([209.85.192.174]:61400 "EHLO mail-pd0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752575AbaDYJAg (ORCPT ); Fri, 25 Apr 2014 05:00:36 -0400 From: Kefeng Wang To: Tejun Heo , Hans de Goede , Maxime Ripard , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Cc: wangkefeng.wang@huawei.com, kefeng.wang@linaro.org, xuwei5@hisilicon.com Subject: [PATCH v6 3/3] ahci: add support for Hisilicon sata Date: Fri, 25 Apr 2014 16:59:11 +0800 Message-Id: <1398416351-30567-4-git-send-email-kefeng.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1398416351-30567-1-git-send-email-kefeng.wang@linaro.org> References: <1398416351-30567-1-git-send-email-kefeng.wang@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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. Signed-off-by: Kefeng Wang --- .../devicetree/bindings/ata/ahci-platform.txt | 3 ++- drivers/ata/ahci_platform.c | 9 ++++++++- 2 files changed, 10 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 : - reg : diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index a476a1f..ebe505c 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -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); -- 1.7.9.5