From patchwork Thu Feb 14 06:37:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "liwei (CM)" X-Patchwork-Id: 1041843 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 440RX93Bpgz9sN1 for ; Thu, 14 Feb 2019 17:37:29 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405760AbfBNGh2 (ORCPT ); Thu, 14 Feb 2019 01:37:28 -0500 Received: from szxga01-in.huawei.com ([45.249.212.187]:2451 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2405731AbfBNGh2 (ORCPT ); Thu, 14 Feb 2019 01:37:28 -0500 Received: from DGGEMM406-HUB.china.huawei.com (unknown [172.30.72.57]) by Forcepoint Email with ESMTP id 8A3C98E63F19A08631FF; Thu, 14 Feb 2019 14:37:26 +0800 (CST) Received: from DGGEMM526-MBX.china.huawei.com ([169.254.8.222]) by DGGEMM406-HUB.china.huawei.com ([10.3.20.214]) with mapi id 14.03.0415.000; Thu, 14 Feb 2019 14:37:23 +0800 From: "liwei (CM)" To: Manivannan Sadhasivam , "vinholikatti@gmail.com" , "jejb@linux.vnet.ibm.com" , "martin.petersen@oracle.com" , "robh+dt@kernel.org" CC: "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "john.stultz@linaro.org" , "amit.kucheria@linaro.org" , "guodong.xu@linaro.org" Subject: =?gb2312?b?tPC4tDogW1BBVENIIHYyIDMvM10gc2NzaTogdWZzOiBBZGQgSEkz?= =?gb2312?b?NjcwIFNvQyBVRlMgZHJpdmVyIHN1cHBvcnQ=?= Thread-Topic: [PATCH v2 3/3] scsi: ufs: Add HI3670 SoC UFS driver support Thread-Index: AQHUpMht1CmYXwUbw0+7E5YSz6BCSqXfFeSQ Date: Thu, 14 Feb 2019 06:37:22 +0000 Message-ID: <1699CE87DE933F49876AD744B5DC140F0672AA1E@dggemm526-mbx.china.huawei.com> References: <20190105072859.9134-1-manivannan.sadhasivam@linaro.org> <20190105072859.9134-4-manivannan.sadhasivam@linaro.org> In-Reply-To: <20190105072859.9134-4-manivannan.sadhasivam@linaro.org> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.189.155.72] MIME-Version: 1.0 X-CFilter-Loop: Reflected Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Fine to me. Thanks! Acked-by: Wei Li -----邮件原件----- 发件人: Manivannan Sadhasivam [mailto:manivannan.sadhasivam@linaro.org] 发送时间: 2019年1月5日 15:29 收件人: vinholikatti@gmail.com; jejb@linux.vnet.ibm.com; martin.petersen@oracle.com; liwei (CM); robh+dt@kernel.org 抄送: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org; john.stultz@linaro.org; amit.kucheria@linaro.org; guodong.xu@linaro.org; Manivannan Sadhasivam 主题: [PATCH v2 3/3] scsi: ufs: Add HI3670 SoC UFS driver support Add HI3670 SoC UFS driver support by extending the common ufs-hisi driver. One major difference between HI3660 ad HI3670 SoCs interms of UFS is the PHY. HI3670 has a 10nm variant PHY and hence this parameter is used to distinguish the configuration. Signed-off-by: Manivannan Sadhasivam --- drivers/scsi/ufs/ufs-hisi.c | 127 +++++++++++++++++++++++++++++------- drivers/scsi/ufs/ufs-hisi.h | 4 ++ 2 files changed, 109 insertions(+), 22 deletions(-) diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c index 452e19f8fb47..f2d3df357a97 100644 --- a/drivers/scsi/ufs/ufs-hisi.c +++ b/drivers/scsi/ufs/ufs-hisi.c @@ -66,7 +66,7 @@ static int ufs_hisi_check_hibern8(struct ufs_hba *hba) return err; } -static void ufs_hi3660_clk_init(struct ufs_hba *hba) +static void ufs_hisi_clk_init(struct ufs_hba *hba) { struct ufs_hisi_host *host = ufshcd_get_variant(hba); @@ -80,7 +80,7 @@ static void ufs_hi3660_clk_init(struct ufs_hba *hba) ufs_sys_ctrl_set_bits(host, BIT_SYSCTRL_REF_CLOCK_EN, PHY_CLK_CTRL); } -static void ufs_hi3660_soc_init(struct ufs_hba *hba) +static void ufs_hisi_soc_init(struct ufs_hba *hba) { struct ufs_hisi_host *host = ufshcd_get_variant(hba); u32 reg; @@ -139,6 +139,7 @@ static void ufs_hi3660_soc_init(struct ufs_hba *hba) static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba) { + struct ufs_hisi_host *host = ufshcd_get_variant(hba); int err; uint32_t value; uint32_t reg; @@ -153,6 +154,14 @@ static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba) ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8121, 0x0), 0x2D); /* MPHY CBOVRCTRL3 */ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8122, 0x0), 0x1); + + if (host->caps & UFS_HISI_CAP_PHY10nm) { + /* MPHY CBOVRCTRL4 */ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8127, 0x0), 0x98); + /* MPHY CBOVRCTRL5 */ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8128, 0x0), 0x1); + } + /* Unipro VS_MphyCfgUpdt */ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD085, 0x0), 0x1); /* MPHY RXOVRCTRL4 rx0 */ @@ -173,10 +182,21 @@ static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba) ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x8113, 0x0), 0x1); ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xD085, 0x0), 0x1); - /* Tactive RX */ - ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008F, 0x4), 0x7); - /* Tactive RX */ - ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008F, 0x5), 0x7); + if (host->caps & UFS_HISI_CAP_PHY10nm) { + /* RX_Hibern8Time_Capability*/ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0092, 0x4), 0xA); + /* RX_Hibern8Time_Capability*/ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0092, 0x5), 0xA); + /* RX_Min_ActivateTime */ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008f, 0x4), 0xA); + /* RX_Min_ActivateTime*/ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008f, 0x5), 0xA); + } else { + /* Tactive RX */ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008F, 0x4), 0x7); + /* Tactive RX */ + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x008F, 0x5), 0x7); + } /* Gear3 Synclength */ ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x0095, 0x4), 0x4F); @@ -208,7 +228,8 @@ static int ufs_hisi_link_startup_pre_change(struct ufs_hba *hba) if (err) dev_err(hba->dev, "ufs_hisi_check_hibern8 error\n"); - ufshcd_writel(hba, UFS_HCLKDIV_NORMAL_VALUE, UFS_REG_HCLKDIV); + if (!(host->caps & UFS_HISI_CAP_PHY10nm)) + ufshcd_writel(hba, UFS_HCLKDIV_NORMAL_VALUE, UFS_REG_HCLKDIV); /* disable auto H8 */ reg = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER); @@ -253,7 +274,7 @@ static int ufs_hisi_link_startup_post_change(struct ufs_hba *hba) return 0; } -static int ufs_hi3660_link_startup_notify(struct ufs_hba *hba, +static int ufs_hisi_link_startup_notify(struct ufs_hba *hba, enum ufs_notify_change_status status) { int err = 0; @@ -391,6 +412,28 @@ static void ufs_hisi_set_dev_cap(struct ufs_hisi_dev_params *hisi_param) static void ufs_hisi_pwr_change_pre_change(struct ufs_hba *hba) { + struct ufs_hisi_host *host = ufshcd_get_variant(hba); + + if (host->caps & UFS_HISI_CAP_PHY10nm) { + /* + * Boston platform need to set SaveConfigTime to 0x13, + * and change sync length to maximum value + */ + /* VS_DebugSaveConfigTime */ + ufshcd_dme_set(hba, UIC_ARG_MIB((u32)0xD0A0), 0x13); + /* g1 sync length */ + ufshcd_dme_set(hba, UIC_ARG_MIB((u32)0x1552), 0x4f); + /* g2 sync length */ + ufshcd_dme_set(hba, UIC_ARG_MIB((u32)0x1554), 0x4f); + /* g3 sync length */ + ufshcd_dme_set(hba, UIC_ARG_MIB((u32)0x1556), 0x4f); + /* PA_Hibern8Time */ + ufshcd_dme_set(hba, UIC_ARG_MIB((u32)0x15a7), 0xA); + /* PA_Tactivate */ + ufshcd_dme_set(hba, UIC_ARG_MIB((u32)0x15a8), 0xA); + ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0xd085, 0x0), 0x01); + } + if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_VS_DEBUGSAVECONFIGTIME) { pr_info("ufs flash device must set VS_DebugSaveConfigTime 0x10\n"); /* VS_DebugSaveConfigTime */ @@ -429,7 +472,7 @@ static void ufs_hisi_pwr_change_pre_change(struct ufs_hba *hba) ufshcd_dme_set(hba, UIC_ARG_MIB(0xd046), 32767); } -static int ufs_hi3660_pwr_change_notify(struct ufs_hba *hba, +static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, enum ufs_notify_change_status status, struct ufs_pa_layer_attr *dev_max_params, struct ufs_pa_layer_attr *dev_req_params) @@ -567,25 +610,72 @@ static int ufs_hi3660_init(struct ufs_hba *hba) return ret; } - ufs_hi3660_clk_init(hba); + ufs_hisi_clk_init(hba); + + ufs_hisi_soc_init(hba); + + return 0; +} + +static int ufs_hi3670_init(struct ufs_hba *hba) +{ + int ret = 0; + struct device *dev = hba->dev; + struct ufs_hisi_host *host; + + ret = ufs_hisi_init_common(hba); + if (ret) { + dev_err(dev, "%s: ufs common init fail\n", __func__); + return ret; + } + + ufs_hisi_clk_init(hba); + + ufs_hisi_soc_init(hba); - ufs_hi3660_soc_init(hba); + /* Add cap for 10nm PHY variant on HI3670 SoC */ + host = ufshcd_get_variant(hba); + host->caps |= UFS_HISI_CAP_PHY10nm; return 0; } -static struct ufs_hba_variant_ops ufs_hba_hisi_vops = { +static struct ufs_hba_variant_ops ufs_hba_hi3660_vops = { .name = "hi3660", .init = ufs_hi3660_init, - .link_startup_notify = ufs_hi3660_link_startup_notify, - .pwr_change_notify = ufs_hi3660_pwr_change_notify, + .link_startup_notify = ufs_hisi_link_startup_notify, + .pwr_change_notify = ufs_hisi_pwr_change_notify, .suspend = ufs_hisi_suspend, .resume = ufs_hisi_resume, }; +static struct ufs_hba_variant_ops ufs_hba_hi3670_vops = { + .name = "hi3670", + .init = ufs_hi3670_init, + .link_startup_notify = ufs_hisi_link_startup_notify, + .pwr_change_notify = ufs_hisi_pwr_change_notify, + .suspend = ufs_hisi_suspend, + .resume = ufs_hisi_resume, +}; + +static const struct of_device_id ufs_hisi_of_match[] = { + { .compatible = "hisilicon,hi3660-ufs", .data = &ufs_hba_hi3660_vops }, + { .compatible = "hisilicon,hi3670-ufs", .data = &ufs_hba_hi3670_vops }, + {}, +}; + +MODULE_DEVICE_TABLE(of, ufs_hisi_of_match); + static int ufs_hisi_probe(struct platform_device *pdev) { - return ufshcd_pltfrm_init(pdev, &ufs_hba_hisi_vops); + const struct of_device_id *of_id; + struct ufs_hba_variant_ops *vops; + struct device *dev = &pdev->dev; + + of_id = of_match_node(ufs_hisi_of_match, dev->of_node); + vops = (struct ufs_hba_variant_ops *)of_id->data; + + return ufshcd_pltfrm_init(pdev, vops); } static int ufs_hisi_remove(struct platform_device *pdev) @@ -596,13 +686,6 @@ static int ufs_hisi_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id ufs_hisi_of_match[] = { - { .compatible = "hisilicon,hi3660-ufs" }, - {}, -}; - -MODULE_DEVICE_TABLE(of, ufs_hisi_of_match); - static const struct dev_pm_ops ufs_hisi_pm_ops = { .suspend = ufshcd_pltfrm_suspend, .resume = ufshcd_pltfrm_resume, diff --git a/drivers/scsi/ufs/ufs-hisi.h b/drivers/scsi/ufs/ufs-hisi.h index 3df9cd7acc29..667dfe39b57e 100644 --- a/drivers/scsi/ufs/ufs-hisi.h +++ b/drivers/scsi/ufs/ufs-hisi.h @@ -91,6 +91,9 @@ enum { #define UFS_HISI_LIMIT_HS_RATE PA_HS_MODE_B #define UFS_HISI_LIMIT_DESIRED_MODE FAST +#define UFS_HISI_CAP_RESERVED BIT(0) +#define UFS_HISI_CAP_PHY10nm BIT(1) + struct ufs_hisi_host { struct ufs_hba *hba; void __iomem *ufs_sys_ctrl; @@ -112,4 +115,5 @@ struct ufs_hisi_host { ufs_sys_ctrl_writel((host), \ ((~(mask)) & (ufs_sys_ctrl_readl((host), (reg)))), \ (reg)) + #endif /* UFS_HISI_H_ */