From patchwork Thu Aug 4 03:35:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?V2VpamllIEdhbyAo6auY5oOf5p2wKQ==?= X-Patchwork-Id: 1663547 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=mediatek.com header.i=@mediatek.com header.a=rsa-sha256 header.s=dk header.b=cTgGwFjQ; dkim-atps=neutral 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=) 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 (2048 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4LyvZ045Q3z9s2R for ; Thu, 4 Aug 2022 13:37:44 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id D0186847F2; Thu, 4 Aug 2022 05:36:05 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com 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=mediatek.com header.i=@mediatek.com header.b="cTgGwFjQ"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id CF4F7847EE; Thu, 4 Aug 2022 05:36:04 +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=-1.3 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_MSPIKE_H2,RDNS_NONE, SPF_HELO_PASS,SPF_PASS,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.2 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 454A0847F2 for ; Thu, 4 Aug 2022 05:36:01 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=weijie.gao@mediatek.com X-UUID: 040d02728aa847caa5210a7615af88bd-20220804 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=d8ADd/L76uWyk3uSq6J8lFvciv4FQRuZgxFRzzVnCUI=; b=cTgGwFjQtQigeCbuASO5GhFDKCOA31jWHRRpfRlB6eqbIx8ghBwRbuOlZIH8TTgSjn8OaPKBB4wzxkpA9z/tDoZQNoqnf1R/iOdjqfnwb4iYPvmpseX3XeLrd67lqxhfiyIupa3dXXK7+Z8YDd4iS7PbjwMF8TT7BhtWTf5Kgy8=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.8, REQID:7f3d1d23-604d-4410-8a0b-5e606dbb1842, OB:0, LO B:0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACT ION:release,TS:-5 X-CID-META: VersionHash:0f94e32, CLOUDID:d5573ed0-a6cf-4fb6-be1b-c60094821ca2, C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil ,QS:nil,BEC:nil,COL:0 X-UUID: 040d02728aa847caa5210a7615af88bd-20220804 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 157929868; Thu, 04 Aug 2022 11:35:56 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.186) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Thu, 4 Aug 2022 11:35:54 +0800 Received: from mcddlt001.gcn.mediatek.inc (10.19.240.15) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Thu, 4 Aug 2022 11:35:54 +0800 From: Weijie Gao To: CC: GSS_MTK_Uboot_upstream , Weijie Gao Subject: [PATCH 14/31] timer: mtk: add support for MediaTek MT7981/MT7986 SoCs Date: Thu, 4 Aug 2022 11:35:53 +0800 Message-ID: <82742b47e9e8f420ed86b0ad83281ae0661bb2ca.1659581119.git.weijie.gao@mediatek.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 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 0.103.6 at phobos.denx.de X-Virus-Status: Clean This patch add general-purpose timer support for MediaTek MT7981/MT7986. These two SoCs uses a newer version of timer with its register definition slightly changed. Signed-off-by: Weijie Gao Reviewed-by: Simon Glass --- drivers/timer/mtk_timer.c | 59 ++++++++++++++++++++++++--------------- 1 file changed, 37 insertions(+), 22 deletions(-) diff --git a/drivers/timer/mtk_timer.c b/drivers/timer/mtk_timer.c index f6b97f868c..223e63f6c1 100644 --- a/drivers/timer/mtk_timer.c +++ b/drivers/timer/mtk_timer.c @@ -13,24 +13,32 @@ #include #include -#define MTK_GPT4_CTRL 0x40 -#define MTK_GPT4_CLK 0x44 -#define MTK_GPT4_CNT 0x48 +#define MTK_GPT4_OFFSET_V1 0x40 +#define MTK_GPT4_OFFSET_V2 0x80 -#define GPT4_ENABLE BIT(0) -#define GPT4_CLEAR BIT(1) -#define GPT4_FREERUN GENMASK(5, 4) -#define GPT4_CLK_SYS 0x0 -#define GPT4_CLK_DIV1 0x0 +#define MTK_GPT_CON 0x0 +#define MTK_GPT_V1_CLK 0x4 +#define MTK_GPT_CNT 0x8 + +#define GPT_ENABLE BIT(0) +#define GPT_CLEAR BIT(1) +#define GPT_V1_FREERUN GENMASK(5, 4) +#define GPT_V2_FREERUN GENMASK(6, 5) + +enum mtk_gpt_ver { + MTK_GPT_V1, + MTK_GPT_V2 +}; struct mtk_timer_priv { void __iomem *base; + unsigned int gpt4_offset; }; static u64 mtk_timer_get_count(struct udevice *dev) { struct mtk_timer_priv *priv = dev_get_priv(dev); - u32 val = readl(priv->base + MTK_GPT4_CNT); + u32 val = readl(priv->base + priv->gpt4_offset + MTK_GPT_CNT); return timer_conv_64(val); } @@ -40,12 +48,27 @@ static int mtk_timer_probe(struct udevice *dev) struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev); struct mtk_timer_priv *priv = dev_get_priv(dev); struct clk clk, parent; - int ret; + int ret, gpt_ver; priv->base = dev_read_addr_ptr(dev); + gpt_ver = dev_get_driver_data(dev); + if (!priv->base) return -ENOENT; + if (gpt_ver == MTK_GPT_V2) { + priv->gpt4_offset = MTK_GPT4_OFFSET_V2; + + writel(GPT_V2_FREERUN | GPT_CLEAR | GPT_ENABLE, + priv->base + priv->gpt4_offset + MTK_GPT_CON); + } else { + priv->gpt4_offset = MTK_GPT4_OFFSET_V1; + + writel(GPT_V1_FREERUN | GPT_CLEAR | GPT_ENABLE, + priv->base + priv->gpt4_offset + MTK_GPT_CON); + writel(0, priv->base + priv->gpt4_offset + MTK_GPT_V1_CLK); + } + ret = clk_get_by_index(dev, 0, &clk); if (ret) return ret; @@ -61,16 +84,6 @@ static int mtk_timer_probe(struct udevice *dev) if (!uc_priv->clock_rate) return -EINVAL; - /* - * Initialize the timer: - * 1. set clock source to system clock with clock divider setting to 1 - * 2. set timer mode to free running - * 3. reset timer counter to 0 then enable the timer - */ - writel(GPT4_CLK_SYS | GPT4_CLK_DIV1, priv->base + MTK_GPT4_CLK); - writel(GPT4_FREERUN | GPT4_CLEAR | GPT4_ENABLE, - priv->base + MTK_GPT4_CTRL); - return 0; } @@ -79,8 +92,10 @@ static const struct timer_ops mtk_timer_ops = { }; static const struct udevice_id mtk_timer_ids[] = { - { .compatible = "mediatek,timer" }, - { .compatible = "mediatek,mt6577-timer" }, + { .compatible = "mediatek,timer", .data = MTK_GPT_V1 }, + { .compatible = "mediatek,mt6577-timer", .data = MTK_GPT_V1 }, + { .compatible = "mediatek,mt7981-timer", .data = MTK_GPT_V2 }, + { .compatible = "mediatek,mt7986-timer", .data = MTK_GPT_V2 }, { } };