From patchwork Wed Sep 2 06:13:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Wunderlich X-Patchwork-Id: 1355524 X-Patchwork-Delegate: marek.vasut@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=mailerdienst.de header.i=@mailerdienst.de header.a=rsa-sha256 header.s=20200217 header.b=lxgEvnYI; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4BhDDJ49LMz9sSJ for ; Wed, 2 Sep 2020 16:14:24 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 90B3981C31; Wed, 2 Sep 2020 08:14:05 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=mailerdienst.de header.i=@mailerdienst.de header.b="lxgEvnYI"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id AB9C581281; Wed, 2 Sep 2020 08:14:03 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from mxout2.routing.net (mxout2.routing.net [IPv6:2a03:2900:1:a::b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id CD16781281 for ; Wed, 2 Sep 2020 08:13:57 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=linux@fw-web.de Received: from mxbox2.masterlogin.de (unknown [192.168.10.89]) by mxout2.routing.net (Postfix) with ESMTP id 6FC445FC41; Wed, 2 Sep 2020 06:13:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailerdienst.de; s=20200217; t=1599027237; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MhqFfEl28OBH5X0sQqmh0G0s0BLp+hTQCely+YDbNXY=; b=lxgEvnYIWhCMLRNUvDSLibNq4c7YFJMI8yLDK3F4jR0QcyY4MRUgMFGHOWnLh56pDm1lFV ylMwfrMuggyY/Gputc/9Pf7Z9oNvEktxz5lOQuh2n3Raljc2ed5M62qp+SNf4OrT2BB/eL hDKTESw8r2XhkbZn42+LEYMvjsB00og= Received: from localhost.localdomain (fttx-pool-217.61.156.255.bambit.de [217.61.156.255]) by mxbox2.masterlogin.de (Postfix) with ESMTPSA id D9B681007D4; Wed, 2 Sep 2020 06:13:56 +0000 (UTC) From: Frank Wunderlich To: u-boot@lists.denx.de, Marek Vasut Cc: Chunfeng Yun , GSS_MTK_Uboot_upstream , Chunfeng Yun , Frank Wunderlich Subject: [RESEND PATCH v2 03/11] usb: xhci: add quirks flag to support MediaTek xHCI 0.96 Date: Wed, 2 Sep 2020 08:13:35 +0200 Message-Id: <20200902061343.3185-3-linux@fw-web.de> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200902061343.3185-1-linux@fw-web.de> References: <20200902061343.3185-1-linux@fw-web.de> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Chunfeng Yun There some vendor quirks for MTK xHCI 0.96 host controller: 1. It defines some extra SW scheduling parameters for HW to minimize the scheduling effort for synchronous and interrupt endpoints. The parameters are put into reseved DWs of slot context and endpoint context. 2. Its TDS in Normal TRB defines a number of packets that remains to be transferred for a TD after processing all Max packets in all previous TRBs. Signed-off-by: Chunfeng Yun Tested-by: Frank Wunderlich --- drivers/usb/host/xhci-mtk.c | 1 + drivers/usb/host/xhci-ring.c | 9 +++++++-- drivers/usb/host/xhci.c | 2 +- include/usb/xhci.h | 2 ++ 4 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 8ff71854fc..f3f181dae0 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -258,6 +258,7 @@ static int xhci_mtk_probe(struct udevice *dev) if (ret) goto ssusb_init_err; + mtk->ctrl.quirks = XHCI_MTK_HOST; hcor = (struct xhci_hcor *)((uintptr_t)mtk->hcd + HC_LENGTH(xhci_readl(&mtk->hcd->cr_capbase))); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 0f86b011f3..cf8b9d2362 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -332,7 +332,8 @@ static u32 xhci_td_remainder(struct xhci_ctrl *ctrl, int transferred, { u32 total_packet_count; - if (ctrl->hci_version < 0x100) + /* MTK xHCI 0.96 contains some features from 1.0 */ + if (ctrl->hci_version < 0x100 && !(ctrl->quirks & XHCI_MTK_HOST)) return ((td_total_len - transferred) >> 10); /* One TRB with a zero-length data packet. */ @@ -340,6 +341,10 @@ static u32 xhci_td_remainder(struct xhci_ctrl *ctrl, int transferred, trb_buff_len == td_total_len) return 0; + /* for MTK xHCI 0.96, TD size include this TRB, but not in 1.x */ + if ((ctrl->quirks & XHCI_MTK_HOST) && (ctrl->hci_version < 0x100)) + trb_buff_len = 0; + total_packet_count = DIV_ROUND_UP(td_total_len, maxp); /* Queueing functions don't count the current TRB into transferred */ @@ -823,7 +828,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe, field |= 0x1; /* xHCI 1.0 6.4.1.2.1: Transfer Type field */ - if (ctrl->hci_version >= 0x100) { + if (ctrl->hci_version >= 0x100 || ctrl->quirks & XHCI_MTK_HOST) { if (length > 0) { if (req->requesttype & USB_DIR_IN) field |= (TRB_DATA_IN << TRB_TX_TYPE_SHIFT); diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 4be1411243..51edeb22c1 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -650,7 +650,7 @@ static int xhci_set_configuration(struct usb_device *udev) * are put into reserved DWs in Slot and Endpoint Contexts * for synchronous endpoints. */ - if (IS_ENABLED(CONFIG_USB_XHCI_MTK)) { + if (ctrl->quirks & XHCI_MTK_HOST) { ep_ctx[ep_index]->reserved[0] = cpu_to_le32(EP_BPKTS(1) | EP_BBM(1)); } diff --git a/include/usb/xhci.h b/include/usb/xhci.h index 15926eb9f4..3de46cd95e 100644 --- a/include/usb/xhci.h +++ b/include/usb/xhci.h @@ -1230,6 +1230,8 @@ struct xhci_ctrl { struct xhci_virt_device *devs[MAX_HC_SLOTS]; int rootdev; u16 hci_version; + u32 quirks; +#define XHCI_MTK_HOST BIT(0) }; unsigned long trb_addr(struct xhci_segment *seg, union xhci_trb *trb);