From patchwork Thu Oct 29 11:57:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 311106 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, MIME_BASE64_TEXT, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2B35C2D0A3 for ; Thu, 29 Oct 2020 11:58:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DC5F207BC for ; Thu, 29 Oct 2020 11:58:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="uI3j8bH2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726018AbgJ2L6O (ORCPT ); Thu, 29 Oct 2020 07:58:14 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:57201 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725300AbgJ2L6C (ORCPT ); Thu, 29 Oct 2020 07:58:02 -0400 X-UUID: 06a5844566ed4a7fab69ca98c3b4be9a-20201029 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=gfnnUMTukPN9nXUoJsTAgUclVQL2iOIkqnu56wZwVGs=; b=uI3j8bH2+1Ucb/B2utCgrTp7X4vcQHa8IVYtwExoWdHzTWYwma/Ci1zEpeMI5/SwUKWNCxrlsCMhnkqRx6i3Vy6lwqmcmJu6x57BQvISbBjelUflWUfbgYYr3kway44GEudyrZ31+LyXAVAaNQGjAjLy2jGvsWfHXoDW4uNYNXg=; X-UUID: 06a5844566ed4a7fab69ca98c3b4be9a-20201029 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 366030498; Thu, 29 Oct 2020 19:57:53 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 29 Oct 2020 19:57:51 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 29 Oct 2020 19:57:51 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 6/6] scsi: ufs-mediatek: Add HS-G4 support Date: Thu, 29 Oct 2020 19:57:50 +0800 Message-ID: <20201029115750.24391-7-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201029115750.24391-1-stanley.chu@mediatek.com> References: <20201029115750.24391-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Provide HS-G4 support in MediaTek UFS platforms. To support HS-G4, introduce mechanism to get the MediaTek UFS controller version. With such information, driver can make right decision to apply different configurations in different controllers. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufs-mediatek.c | 32 ++++++++++++++++++++++++++++++++ drivers/scsi/ufs/ufs-mediatek.h | 11 +++++++++-- 2 files changed, 41 insertions(+), 2 deletions(-) -- 2.18.0 diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index dda028ec30dc..1a355f519556 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -569,6 +569,24 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on, return ret; } +static void ufs_mtk_get_controller_version(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + int ret, ver = 0; + + if (host->hw_ver.major) + return; + + /* Set default (minimum) version anyway */ + host->hw_ver.major = 2; + + ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_LOCALVERINFO), &ver); + if (!ret) { + if (ver >= UFS_UNIPRO_VER_1_8) + host->hw_ver.major = 3; + } +} + /** * ufs_mtk_init - find other essential mmio bases * @hba: host controller instance @@ -649,7 +667,9 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba, struct ufs_pa_layer_attr *dev_max_params, struct ufs_pa_layer_attr *dev_req_params) { + struct ufs_mtk_host *host = ufshcd_get_variant(hba); struct ufs_dev_params host_cap; + u32 adapt_val; int ret; host_cap.tx_lanes = UFS_MTK_LIMIT_NUM_LANES_TX; @@ -674,6 +694,16 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba, __func__); } + if (host->hw_ver.major >= 3) { + if (dev_req_params->gear_tx == UFS_HS_G4) + adapt_val = PA_INITIAL_ADAPT; + else + adapt_val = PA_NO_ADAPT; + ufshcd_dme_set(hba, + UIC_ARG_MIB(PA_TXHSADAPTTYPE), + adapt_val); + } + return ret; } @@ -724,6 +754,8 @@ static int ufs_mtk_pre_link(struct ufs_hba *hba) int ret; u32 tmp; + ufs_mtk_get_controller_version(hba); + ret = ufs_mtk_unipro_set_lpm(hba, false); if (ret) return ret; diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h index 30f45dfce04c..ac37b11803fb 100644 --- a/drivers/scsi/ufs/ufs-mediatek.h +++ b/drivers/scsi/ufs/ufs-mediatek.h @@ -35,8 +35,8 @@ */ #define UFS_MTK_LIMIT_NUM_LANES_RX 2 #define UFS_MTK_LIMIT_NUM_LANES_TX 2 -#define UFS_MTK_LIMIT_HSGEAR_RX UFS_HS_G3 -#define UFS_MTK_LIMIT_HSGEAR_TX UFS_HS_G3 +#define UFS_MTK_LIMIT_HSGEAR_RX UFS_HS_G4 +#define UFS_MTK_LIMIT_HSGEAR_TX UFS_HS_G4 #define UFS_MTK_LIMIT_PWMGEAR_RX UFS_PWM_G4 #define UFS_MTK_LIMIT_PWMGEAR_TX UFS_PWM_G4 #define UFS_MTK_LIMIT_RX_PWR_PWM SLOW_MODE @@ -107,6 +107,12 @@ struct ufs_mtk_crypt_cfg { int vcore_volt; }; +struct ufs_mtk_hw_ver { + u8 step; + u8 minor; + u8 major; +}; + struct ufs_mtk_host { struct phy *mphy; struct regulator *reg_va09; @@ -115,6 +121,7 @@ struct ufs_mtk_host { struct reset_control *crypto_reset; struct ufs_hba *hba; struct ufs_mtk_crypt_cfg *crypt; + struct ufs_mtk_hw_ver hw_ver; enum ufs_mtk_host_caps caps; bool mphy_powered_on; bool unipro_lpm;