From patchwork Thu Jan 14 03:14:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jeffery X-Patchwork-Id: 12018561 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 007C7C433E0 for ; Thu, 14 Jan 2021 03:16:48 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9268923619 for ; Thu, 14 Jan 2021 03:16:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9268923619 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=j0vR1CbJFIu13kuHofC4kIolzaQuhNJ/KUoZ3pM8H5E=; b=Lt9lwp6Pe69Lw5YNWlYQ3+cL+ 5pXsYHaYqSp23f+AjUk+vMoJA+dGEnmmMfJ67wPHgzK+CLnBaG/MCd1Kw2jJKOlqhP6hDCMNtkj2a iY0V+ib/9iwawbDecHtc86q8prlvgEEzi3OQBgYyBdx/Ezpm6Njq9sCiaQ9VsuYJOEM2nVSZbCb1Y dHS/z8FCangmXgCLeSAETUTSgG99Mb3P0B7bQlagT6R1t0SHfL7ACxDMvdwmYF2MQECLcDdlt5lCC FCmAVWXVcmjBOdxopoVUMSIzdGaN0PsVCCDodR+nNwGtatWl5QdizAcSvTogh2zM0HHOrIZmYlbPD yXUYPvTkA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt67-0002lf-UE; Thu, 14 Jan 2021 03:14:55 +0000 Received: from out2-smtp.messagingengine.com ([66.111.4.26]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt60-0002jV-OR for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 03:14:49 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 8FF3E5C01E5; Wed, 13 Jan 2021 22:14:48 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 13 Jan 2021 22:14:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=KSRPuSjoX18Mr PCxVgf/9kBU5TXFu4khlyApjlCo9JI=; b=cNZBRnuOBN7WbiuP7Wt5mvNJbZ5nt 2vXJlNzZ91e2+gLpQtYxXE3ekUauzhgW4ZQEERfhz0Ez21uX2lc2UpTbfQD3j+HY jjp4YCBcNQGftApHTwYvmAvVoSks9lTLjcltkF+xl93qky1nJKjnA4luQy8rNaIS 6lA+1LGtlwo7w3JvytSX296SIw8MxRl5LoImQY/3isIG8fQZgClVh6B8jXZaMsDv 3lDK28WXOc0JriNba4LgQC6zBPNOrE6/6cwvwtaIqTott43hEbPPO4FO3WlMQiDl x5TCEv1BTJkpuErKfwIDjJqPc8XTMbItxGznKdkZZMW+JAJu+Gwdin7gQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=KSRPuSjoX18MrPCxVgf/9kBU5TXFu4khlyApjlCo9JI=; b=fwa7iDCg /sWoYPo1k4pEg+ZxyU9/WzYT9XwOB2linVob98VQhJ/IwCDjgDWgaMHtc6X0M0Ih jVZ21w97Ex4njZhaUbZ1Aj3NLn8P+Ugc2c4hO5r2QZyQdvi5tZiGQEUdqtz9lNyY RMG9ohLN8vAd3g8nX9DW69cZbBD5JSljd3YATMrcqKQ6XWawEDI8bX+QjO0GVDWB ghE7MyuBx2hj0sW+TvfZ6oFeimfIMXzTaBySC7ZOuoIW6rsze2Ae815lTBhmWjVi 24J81hhsNzYO7CCiUkevfpc3T8VUSNVRu7ZK847+jyIR/Rn6CbX++dIqQJmy6Ll/ YiU4LW0prvy6+A== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedukedrtdeggdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetnhgurhgvficulfgvfhhfvghrhicuoegrnhgurhgvfiesrghj rdhiugdrrghuqeenucggtffrrghtthgvrhhnpeejgfdvveehteekveeggeellefgleette ejffelffdvudduveeiffegteelvefhteenucfkphepuddukedrvddutddrudejfedrgeek necuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomheprghnug hrvgifsegrjhdrihgurdgruh X-ME-Proxy: Received: from localhost.localdomain (ppp118-210-173-48.adl-adc-lon-bras34.tpg.internode.on.net [118.210.173.48]) by mail.messagingengine.com (Postfix) with ESMTPA id 63634240057; Wed, 13 Jan 2021 22:14:45 -0500 (EST) From: Andrew Jeffery To: linux-mmc@vger.kernel.org Subject: [PATCH v7 1/6] mmc: core: Add helper for parsing clock phase properties Date: Thu, 14 Jan 2021 13:44:28 +1030 Message-Id: <20210114031433.2388532-2-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114031433.2388532-1-andrew@aj.id.au> References: <20210114031433.2388532-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_221448_888911_7D832995 X-CRM114-Status: GOOD ( 12.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, ryan_chen@aspeedtech.com, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, robh+dt@kernel.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Drivers for MMC hosts that accept phase corrections can take advantage of the helper by embedding an instance of struct mmc_clk_phase_map in their private data and invoking mmc_of_parse_clk_phase() to extract phase parameters. It is the responsibility of the host driver to translate and apply the extracted values to hardware as required. Signed-off-by: Andrew Jeffery --- drivers/mmc/core/host.c | 44 ++++++++++++++++++++++++++++++++++++++++ include/linux/mmc/host.h | 13 ++++++++++++ 2 files changed, 57 insertions(+) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 96b2ca1f1b06..74e853bb6948 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -163,6 +163,50 @@ static void mmc_retune_timer(struct timer_list *t) mmc_retune_needed(host); } +static void mmc_of_parse_timing_phase(struct device *dev, const char *prop, + struct mmc_clk_phase *phase) +{ + int degrees[2] = {0}; + int rc; + + rc = device_property_read_u32_array(dev, prop, degrees, 2); + phase->valid = !rc; + if (phase->valid) { + phase->in_deg = degrees[0]; + phase->out_deg = degrees[1]; + } +} + +void +mmc_of_parse_clk_phase(struct mmc_host *host, struct mmc_clk_phase_map *map) +{ + struct device *dev = host->parent; + + mmc_of_parse_timing_phase(dev, "clk-phase-legacy", + &map->phase[MMC_TIMING_LEGACY]); + mmc_of_parse_timing_phase(dev, "clk-phase-mmc-hs", + &map->phase[MMC_TIMING_MMC_HS]); + mmc_of_parse_timing_phase(dev, "clk-phase-sd-hs", + &map->phase[MMC_TIMING_SD_HS]); + mmc_of_parse_timing_phase(dev, "clk-phase-uhs-sdr12", + &map->phase[MMC_TIMING_UHS_SDR12]); + mmc_of_parse_timing_phase(dev, "clk-phase-uhs-sdr25", + &map->phase[MMC_TIMING_UHS_SDR25]); + mmc_of_parse_timing_phase(dev, "clk-phase-uhs-sdr50", + &map->phase[MMC_TIMING_UHS_SDR50]); + mmc_of_parse_timing_phase(dev, "clk-phase-uhs-sdr104", + &map->phase[MMC_TIMING_UHS_SDR104]); + mmc_of_parse_timing_phase(dev, "clk-phase-uhs-ddr50", + &map->phase[MMC_TIMING_UHS_DDR50]); + mmc_of_parse_timing_phase(dev, "clk-phase-mmc-ddr52", + &map->phase[MMC_TIMING_MMC_DDR52]); + mmc_of_parse_timing_phase(dev, "clk-phase-mmc-hs200", + &map->phase[MMC_TIMING_MMC_HS200]); + mmc_of_parse_timing_phase(dev, "clk-phase-mmc-hs400", + &map->phase[MMC_TIMING_MMC_HS400]); +} +EXPORT_SYMBOL(mmc_of_parse_clk_phase); + /** * mmc_of_parse() - parse host's device-tree node * @host: host whose node should be parsed. diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 01bba36545c5..8cf686d98a68 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -79,6 +79,17 @@ struct mmc_ios { bool enhanced_strobe; /* hs400es selection */ }; +struct mmc_clk_phase { + bool valid; + u16 in_deg; + u16 out_deg; +}; + +#define MMC_NUM_CLK_PHASES (MMC_TIMING_MMC_HS400 + 1) +struct mmc_clk_phase_map { + struct mmc_clk_phase phase[MMC_NUM_CLK_PHASES]; +}; + struct mmc_host; struct mmc_host_ops { @@ -490,6 +501,8 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *); int mmc_add_host(struct mmc_host *); void mmc_remove_host(struct mmc_host *); void mmc_free_host(struct mmc_host *); +void mmc_of_parse_clk_phase(struct mmc_host *host, + struct mmc_clk_phase_map *map); int mmc_of_parse(struct mmc_host *host); int mmc_of_parse_voltage(struct device_node *np, u32 *mask); From patchwork Thu Jan 14 03:14:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jeffery X-Patchwork-Id: 12018565 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 8BD5DC433E0 for ; Thu, 14 Jan 2021 03:16:55 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2D3D723619 for ; Thu, 14 Jan 2021 03:16:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2D3D723619 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=W0yaTnWeCiiR+nFuT99MjAedol4Yz+JyKHGR8aJC+R4=; b=wK4R6MfZANk1tm4SNtSG4z5Oj eNhF//5LAoLP9iwUM8X3gPPEMBGzA3ZAbI+d8RGsYA5k9MU7e/J9VdR12SK45NNmvigruMwuhASjp mdm64fR7wlCREocO+QANpyMSvkwjq/u/XnFyDgoF4rNcJzUTjpzBScuFVcPRJVYqs5xccH65b88us 0KPCMjqqfTPmV/S8xCl8vJR5x+uz7G4LWKqGZaLCcEfqOHt0VItAX9Dkr+9wiOwtaQ7QcPyEcB6EE wR8ITxzwnoHrm99Q1Kv/ZtD50EnwMxsO9YY0R6mDIvU6GRzooqfrO/6CWxbHctQhCbTMk+Xm3DleC N39NFn+Xg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6F-0002mq-Og; Thu, 14 Jan 2021 03:15:03 +0000 Received: from out2-smtp.messagingengine.com ([66.111.4.26]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt64-0002ki-GT for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 03:14:54 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 4CF065C01EB; Wed, 13 Jan 2021 22:14:52 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 13 Jan 2021 22:14:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=724ecEhRDXWgZ Zicro86oSLISUtE1mGbQqChDaE7fZo=; b=M0OXArcVUP0MB7vY3AznDkgEQfQWe COC2+5K+xybBLxVmY5EJzQSbLsMxr71gq261dThg9RXILVDEt21lInQ6Msg7pRCW 9/01M4sLtlyR7wmf5Rfw+YfX/Km3AM4qZfF2U4pAjZeyUYnII9ByjOjYp+fAqgad 9hWT9Rm/jrMoBxUTqKtLHOcUu+tMPQtes2w2b2WDMDUrS0b4Q6I+eXrrLvCO5nuq 2K20pZw/z0UUIuAwEU3p33BgTDjbOgxFFoATyQyyHgMIswSMkkHBmSQYIa7/KTxk MUJP2QEM+bttnf5YfFrqPKqwaJ32lbqcZmZjxEOiVGCjN8cJa3EUTYVRw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=724ecEhRDXWgZZicro86oSLISUtE1mGbQqChDaE7fZo=; b=gFengz4w lvra05jA1ri9nXulHtIP/WuTWPmX/WF2X0AkyZjHt7bMsO6+kPxk/cjo79fg+adk ymTCy7Fmwx/r8qwKTDj0UK1n4J1UrsbpBsE2mbgG0sVTgz7/wPpFyqtAFVx5aZg9 jjScbzigC1CRKOjgeOZ6+ANiPAiOhE4ti1QOtTR9+B2m3WKZyswPo4nrmZ0rV5ZP Bkh8oPElpG3WcAXbQYT/nk95RYkvmZUjYv7LdEfN5DTMeah+cIWKO0OEzLb5zh3W 59TW5AODLUEAUn3C/TQKz7IhsW1iPpc/LfXrSix32ZGz/VLywgle69lzXlkQ6eOY dQnhsD5vwVnaHQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedukedrtdeggdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetnhgurhgvficulfgvfhhfvghrhicuoegrnhgurhgvfiesrghj rdhiugdrrghuqeenucggtffrrghtthgvrhhnpeejgfdvveehteekveeggeellefgleette ejffelffdvudduveeiffegteelvefhteenucfkphepuddukedrvddutddrudejfedrgeek necuvehluhhsthgvrhfuihiivgepudenucfrrghrrghmpehmrghilhhfrhhomheprghnug hrvgifsegrjhdrihgurdgruh X-ME-Proxy: Received: from localhost.localdomain (ppp118-210-173-48.adl-adc-lon-bras34.tpg.internode.on.net [118.210.173.48]) by mail.messagingengine.com (Postfix) with ESMTPA id 0BB3924005A; Wed, 13 Jan 2021 22:14:48 -0500 (EST) From: Andrew Jeffery To: linux-mmc@vger.kernel.org Subject: [PATCH v7 2/6] mmc: sdhci-of-aspeed: Expose clock phase controls Date: Thu, 14 Jan 2021 13:44:29 +1030 Message-Id: <20210114031433.2388532-3-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114031433.2388532-1-andrew@aj.id.au> References: <20210114031433.2388532-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_221452_653215_132EAABB X-CRM114-Status: GOOD ( 24.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, ryan_chen@aspeedtech.com, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, robh+dt@kernel.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Aspeed SD/eMMC controllers expose configurable clock phase correction by inserting delays of up to 15 logic elements in length into the bus clock path. The hardware supports independent configuration for both bus directions on a per-slot basis. The timing delay per element encoded in the driver was experimentally determined by scope measurements. The phase controls for both slots are grouped together in a single register of the global register block of the SD/MMC controller(s), which drives the use of a locking scheme between the SDHCIs and the global register set. Signed-off-by: Andrew Jeffery --- drivers/mmc/host/sdhci-of-aspeed.c | 216 +++++++++++++++++++++++++++-- 1 file changed, 208 insertions(+), 8 deletions(-) diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c index 4f008ba3280e..b1a14e7dda82 100644 --- a/drivers/mmc/host/sdhci-of-aspeed.c +++ b/drivers/mmc/host/sdhci-of-aspeed.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -16,9 +17,19 @@ #include "sdhci-pltfm.h" -#define ASPEED_SDC_INFO 0x00 -#define ASPEED_SDC_S1MMC8 BIT(25) -#define ASPEED_SDC_S0MMC8 BIT(24) +#define ASPEED_SDC_INFO 0x00 +#define ASPEED_SDC_S1_MMC8 BIT(25) +#define ASPEED_SDC_S0_MMC8 BIT(24) +#define ASPEED_SDC_PHASE 0xf4 +#define ASPEED_SDC_S1_PHASE_IN GENMASK(25, 21) +#define ASPEED_SDC_S0_PHASE_IN GENMASK(20, 16) +#define ASPEED_SDC_S1_PHASE_OUT GENMASK(15, 11) +#define ASPEED_SDC_S1_PHASE_IN_EN BIT(10) +#define ASPEED_SDC_S1_PHASE_OUT_EN GENMASK(9, 8) +#define ASPEED_SDC_S0_PHASE_OUT GENMASK(7, 3) +#define ASPEED_SDC_S0_PHASE_IN_EN BIT(2) +#define ASPEED_SDC_S0_PHASE_OUT_EN GENMASK(1, 0) +#define ASPEED_SDC_PHASE_MAX 31 struct aspeed_sdc { struct clk *clk; @@ -28,9 +39,36 @@ struct aspeed_sdc { void __iomem *regs; }; +struct aspeed_sdhci_tap_param { + bool valid; + +#define ASPEED_SDHCI_TAP_PARAM_INVERT_CLK BIT(4) + u8 in; + u8 out; +}; + +struct aspeed_sdhci_tap_desc { + u32 tap_mask; + u32 enable_mask; + u8 enable_value; +}; + +struct aspeed_sdhci_phase_desc { + struct aspeed_sdhci_tap_desc in; + struct aspeed_sdhci_tap_desc out; +}; + +struct aspeed_sdhci_pdata { + const struct aspeed_sdhci_phase_desc *phase_desc; + size_t nr_phase_descs; +}; + struct aspeed_sdhci { + const struct aspeed_sdhci_pdata *pdata; struct aspeed_sdc *parent; u32 width_mask; + struct mmc_clk_phase_map phase_map; + const struct aspeed_sdhci_phase_desc *phase_desc; }; static void aspeed_sdc_configure_8bit_mode(struct aspeed_sdc *sdc, @@ -50,10 +88,118 @@ static void aspeed_sdc_configure_8bit_mode(struct aspeed_sdc *sdc, spin_unlock(&sdc->lock); } +static u32 +aspeed_sdc_set_phase_tap(const struct aspeed_sdhci_tap_desc *desc, + u8 tap, bool enable, u32 reg) +{ + reg &= ~(desc->enable_mask | desc->tap_mask); + if (enable) { + reg |= tap << __ffs(desc->tap_mask); + reg |= desc->enable_value << __ffs(desc->enable_mask); + } + + return reg; +} + +static void +aspeed_sdc_set_phase_taps(struct aspeed_sdc *sdc, + const struct aspeed_sdhci_phase_desc *desc, + const struct aspeed_sdhci_tap_param *taps) +{ + u32 reg; + + spin_lock(&sdc->lock); + reg = readl(sdc->regs + ASPEED_SDC_PHASE); + + reg = aspeed_sdc_set_phase_tap(&desc->in, taps->in, taps->valid, reg); + reg = aspeed_sdc_set_phase_tap(&desc->out, taps->out, taps->valid, reg); + + writel(reg, sdc->regs + ASPEED_SDC_PHASE); + spin_unlock(&sdc->lock); +} + +#define PICOSECONDS_PER_SECOND 1000000000000ULL +#define ASPEED_SDHCI_NR_TAPS 15 +/* Measured value with *handwave* environmentals and static loading */ +#define ASPEED_SDHCI_MAX_TAP_DELAY_PS 1253 +static int aspeed_sdhci_phase_to_tap(struct device *dev, unsigned long rate_hz, + int phase_deg) +{ + u64 phase_period_ps; + u64 prop_delay_ps; + u64 clk_period_ps; + unsigned int tap; + u8 inverted; + + phase_deg %= 360; + + if (phase_deg >= 180) { + inverted = ASPEED_SDHCI_TAP_PARAM_INVERT_CLK; + phase_deg -= 180; + dev_dbg(dev, + "Inverting clock to reduce phase correction from %d to %d degrees\n", + phase_deg + 180, phase_deg); + } else { + inverted = 0; + } + + prop_delay_ps = ASPEED_SDHCI_MAX_TAP_DELAY_PS / ASPEED_SDHCI_NR_TAPS; + clk_period_ps = div_u64(PICOSECONDS_PER_SECOND, (u64)rate_hz); + phase_period_ps = div_u64((u64)phase_deg * clk_period_ps, 360ULL); + + tap = div_u64(phase_period_ps, prop_delay_ps); + if (tap > ASPEED_SDHCI_NR_TAPS) { + dev_warn(dev, + "Requested out of range phase tap %d for %d degrees of phase compensation at %luHz, clamping to tap %d\n", + tap, phase_deg, rate_hz, ASPEED_SDHCI_NR_TAPS); + tap = ASPEED_SDHCI_NR_TAPS; + } + + return inverted | tap; +} + +static void +aspeed_sdhci_phases_to_taps(struct device *dev, unsigned long rate, + const struct mmc_clk_phase *phases, + struct aspeed_sdhci_tap_param *taps) +{ + taps->valid = phases->valid; + + if (!phases->valid) + return; + + taps->in = aspeed_sdhci_phase_to_tap(dev, rate, phases->in_deg); + taps->out = aspeed_sdhci_phase_to_tap(dev, rate, phases->out_deg); +} + +static void +aspeed_sdhci_configure_phase(struct sdhci_host *host, unsigned long rate) +{ + struct aspeed_sdhci_tap_param _taps = {0}, *taps = &_taps; + struct mmc_clk_phase *params; + struct aspeed_sdhci *sdhci; + struct device *dev; + + dev = host->mmc->parent; + sdhci = sdhci_pltfm_priv(sdhci_priv(host)); + + if (!sdhci->phase_desc) + return; + + params = &sdhci->phase_map.phase[host->timing]; + aspeed_sdhci_phases_to_taps(dev, rate, params, taps); + aspeed_sdc_set_phase_taps(sdhci->parent, sdhci->phase_desc, taps); + dev_dbg(dev, + "Using taps [%d, %d] for [%d, %d] degrees of phase correction at %luHz (%d)\n", + taps->in & ASPEED_SDHCI_NR_TAPS, + taps->out & ASPEED_SDHCI_NR_TAPS, + params->in_deg, params->out_deg, rate, host->timing); +} + static void aspeed_sdhci_set_clock(struct sdhci_host *host, unsigned int clock) { struct sdhci_pltfm_host *pltfm_host; - unsigned long parent; + unsigned long parent, bus; int div; u16 clk; @@ -69,13 +215,17 @@ static void aspeed_sdhci_set_clock(struct sdhci_host *host, unsigned int clock) clock = host->max_clk; for (div = 2; div < 256; div *= 2) { - if ((parent / div) <= clock) + bus = parent / div; + if (bus <= clock) break; } + div >>= 1; clk = div << SDHCI_DIVIDER_SHIFT; + aspeed_sdhci_configure_phase(host, bus); + sdhci_enable_clk(host, clk); } @@ -157,6 +307,7 @@ static inline int aspeed_sdhci_calculate_slot(struct aspeed_sdhci *dev, static int aspeed_sdhci_probe(struct platform_device *pdev) { + const struct aspeed_sdhci_pdata *aspeed_pdata; struct sdhci_pltfm_host *pltfm_host; struct aspeed_sdhci *dev; struct sdhci_host *host; @@ -164,12 +315,15 @@ static int aspeed_sdhci_probe(struct platform_device *pdev) int slot; int ret; + aspeed_pdata = of_device_get_match_data(&pdev->dev); + host = sdhci_pltfm_init(pdev, &aspeed_sdhci_pdata, sizeof(*dev)); if (IS_ERR(host)) return PTR_ERR(host); pltfm_host = sdhci_priv(host); dev = sdhci_pltfm_priv(pltfm_host); + dev->pdata = aspeed_pdata; dev->parent = dev_get_drvdata(pdev->dev.parent); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -180,8 +334,17 @@ static int aspeed_sdhci_probe(struct platform_device *pdev) else if (slot >= 2) return -EINVAL; - dev_info(&pdev->dev, "Configuring for slot %d\n", slot); - dev->width_mask = !slot ? ASPEED_SDC_S0MMC8 : ASPEED_SDC_S1MMC8; + if (dev->pdata && slot < dev->pdata->nr_phase_descs) { + dev->phase_desc = &dev->pdata->phase_desc[slot]; + } else { + dev_info(&pdev->dev, + "Phase control not supported for slot %d\n", slot); + dev->phase_desc = NULL; + } + + dev->width_mask = !slot ? ASPEED_SDC_S0_MMC8 : ASPEED_SDC_S1_MMC8; + + dev_info(&pdev->dev, "Configured for slot %d\n", slot); sdhci_get_of_property(pdev); @@ -199,6 +362,9 @@ static int aspeed_sdhci_probe(struct platform_device *pdev) if (ret) goto err_sdhci_add; + if (dev->phase_desc) + mmc_of_parse_clk_phase(host->mmc, &dev->phase_map); + ret = sdhci_add_host(host); if (ret) goto err_sdhci_add; @@ -230,10 +396,44 @@ static int aspeed_sdhci_remove(struct platform_device *pdev) return 0; } +static const struct aspeed_sdhci_phase_desc ast2600_sdhci_phase[] = { + /* SDHCI/Slot 0 */ + [0] = { + .in = { + .tap_mask = ASPEED_SDC_S0_PHASE_IN, + .enable_mask = ASPEED_SDC_S0_PHASE_IN_EN, + .enable_value = 1, + }, + .out = { + .tap_mask = ASPEED_SDC_S0_PHASE_OUT, + .enable_mask = ASPEED_SDC_S0_PHASE_OUT_EN, + .enable_value = 3, + }, + }, + /* SDHCI/Slot 1 */ + [1] = { + .in = { + .tap_mask = ASPEED_SDC_S1_PHASE_IN, + .enable_mask = ASPEED_SDC_S1_PHASE_IN_EN, + .enable_value = 1, + }, + .out = { + .tap_mask = ASPEED_SDC_S1_PHASE_OUT, + .enable_mask = ASPEED_SDC_S1_PHASE_OUT_EN, + .enable_value = 3, + }, + }, +}; + +static const struct aspeed_sdhci_pdata ast2600_sdhci_pdata = { + .phase_desc = ast2600_sdhci_phase, + .nr_phase_descs = ARRAY_SIZE(ast2600_sdhci_phase), +}; + static const struct of_device_id aspeed_sdhci_of_match[] = { { .compatible = "aspeed,ast2400-sdhci", }, { .compatible = "aspeed,ast2500-sdhci", }, - { .compatible = "aspeed,ast2600-sdhci", }, + { .compatible = "aspeed,ast2600-sdhci", .data = &ast2600_sdhci_pdata, }, { } }; From patchwork Thu Jan 14 03:14:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jeffery X-Patchwork-Id: 12018569 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 AF2A9C433DB for ; Thu, 14 Jan 2021 03:17:03 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 51D38235FA for ; Thu, 14 Jan 2021 03:17:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51D38235FA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5Kaimh15YBUf3zRTCh2ulw30VIyhUQohNhuM6C89deE=; b=hC/fw32Mu152XBkUcFPSG9okk lFRRQDEmsNcwDj687CZaHn5C3kcZRt1cABapUTHx59GL9Xdmnof1Dx/3IP04PeUasxB71Eyed5DRJ eXB+GRZsozWMMojLHz/P355UauTcUwEAnqfP2s7gOL74KChXQdjHsp5z7EDrc0Ta/s8AGwk6Sw9WR y2V0ztbFMI9LBILkdT63w/WPgx5luMq4d2cW8j59I8n9fmSpv7mI2JoH7RhNtm2WSaIi4Jhk1UY5g XLpjs3UedMwYCxO5Q2xNhIiAk3Tn+vPbzIHQw8CdU3BFabC3qc+FkaVVdWjGglInwg/fxDfx3p3Cu XSQQmkW8Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6S-0002rn-Fe; Thu, 14 Jan 2021 03:15:16 +0000 Received: from out2-smtp.messagingengine.com ([66.111.4.26]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt68-0002ll-1M for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 03:14:57 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id D82975C01E9; Wed, 13 Jan 2021 22:14:55 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 13 Jan 2021 22:14:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=Q1VncEwVP5Sn+ LVJVlCf4rK+C+OhdnQWKLcdmzYhx+k=; b=lh1XOm/1p4RnqoRDBp2T/H/bTeYbs AkC/JW7pDsbE8HGoRLl/YF7+xI47F8O4Y5OCfoJnSN6S0z2n6AepNCv9uf1ZXSte hRjrk8ARiVAc00A01kizYibsV+fvvCU1e7WMnLCk4G8ZfjYUarjET9JqbcMyAboP 3Jn1lj8YHi4qXaT/M/a7vvLJAUrGSMwMGR6u5s5Xk+eZ3VL/8IzyD3QqSqsY6hmq iDWm3A1mca6Alms0ih2GLrulN9Is/AdsVpDrRQQ65KLc7yis57DoffhVDYTkqL53 yFgs4/FSC3kQgEmLAqjMSDKV8R269e59AYXxwlz7JluLMVa0j090J1ZRQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=Q1VncEwVP5Sn+LVJVlCf4rK+C+OhdnQWKLcdmzYhx+k=; b=BOZ/0EMR fJLtfTSoX/CP+DMjq3S1tygYCehtz0m4VC3OYp25PrOxkWEee6MYrfISMc6WwDtN coD7guonkCn8Zu4cLs3mndgsJiHpvLpAUsyDQ5KzICwjTddGMhEj26nLfSUx7CCI LYKDPAspY0G4sJUhXumL8aOZbXPpNefzkCkrbQIsABjv+cmMJ6kTlE2FCgKGhjAh K9I3C8a91LffOdlqDpQcyEAo+59g3N059Kr5Y/baxpT0GBXdfOLZ5qTeRrRhKUJN Qtf/fwUxm6+AhlHJtyshusoeHQfa7cs9LEES49Jb6L2tw0+P5XFJYpjpzGFYvfoJ G8U9NbcEt8UTMw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedukedrtdeggdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetnhgurhgvficulfgvfhhfvghrhicuoegrnhgurhgvfiesrghj rdhiugdrrghuqeenucggtffrrghtthgvrhhnpeejgfdvveehteekveeggeellefgleette ejffelffdvudduveeiffegteelvefhteenucfkphepuddukedrvddutddrudejfedrgeek necuvehluhhsthgvrhfuihiivgepudenucfrrghrrghmpehmrghilhhfrhhomheprghnug hrvgifsegrjhdrihgurdgruh X-ME-Proxy: Received: from localhost.localdomain (ppp118-210-173-48.adl-adc-lon-bras34.tpg.internode.on.net [118.210.173.48]) by mail.messagingengine.com (Postfix) with ESMTPA id ABBE3240057; Wed, 13 Jan 2021 22:14:52 -0500 (EST) From: Andrew Jeffery To: linux-mmc@vger.kernel.org Subject: [PATCH v7 3/6] mmc: sdhci-of-aspeed: Add AST2600 bus clock support Date: Thu, 14 Jan 2021 13:44:30 +1030 Message-Id: <20210114031433.2388532-4-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114031433.2388532-1-andrew@aj.id.au> References: <20210114031433.2388532-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_221456_153924_0ED05534 X-CRM114-Status: GOOD ( 18.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, ryan_chen@aspeedtech.com, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, robh+dt@kernel.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The AST2600 can achieve HS200 speeds with a change to the bus clock divisor behaviour. The divisor can also be more accurate with respect to the requested clock rate, but keep the one-hot behaviour for backwards compatibility with the AST2400 and AST2500. Signed-off-by: Andrew Jeffery --- drivers/mmc/host/sdhci-of-aspeed.c | 37 ++++++++++++++++++++++++++---- 1 file changed, 33 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c index b1a14e7dda82..4b30f6a1178e 100644 --- a/drivers/mmc/host/sdhci-of-aspeed.c +++ b/drivers/mmc/host/sdhci-of-aspeed.c @@ -59,6 +59,7 @@ struct aspeed_sdhci_phase_desc { }; struct aspeed_sdhci_pdata { + unsigned int clk_div_start; const struct aspeed_sdhci_phase_desc *phase_desc; size_t nr_phase_descs; }; @@ -200,10 +201,13 @@ static void aspeed_sdhci_set_clock(struct sdhci_host *host, unsigned int clock) { struct sdhci_pltfm_host *pltfm_host; unsigned long parent, bus; + struct aspeed_sdhci *sdhci; int div; u16 clk; pltfm_host = sdhci_priv(host); + sdhci = sdhci_pltfm_priv(pltfm_host); + parent = clk_get_rate(pltfm_host->clk); sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); @@ -214,7 +218,23 @@ static void aspeed_sdhci_set_clock(struct sdhci_host *host, unsigned int clock) if (WARN_ON(clock > host->max_clk)) clock = host->max_clk; - for (div = 2; div < 256; div *= 2) { + /* + * Regarding the AST2600: + * + * If (EMMC12C[7:6], EMMC12C[15:8] == 0) then + * period of SDCLK = period of SDMCLK. + * + * If (EMMC12C[7:6], EMMC12C[15:8] != 0) then + * period of SDCLK = period of SDMCLK * 2 * (EMMC12C[7:6], EMMC[15:8]) + * + * If you keep EMMC12C[7:6] = 0 and EMMC12C[15:8] as one-hot, + * 0x1/0x2/0x4/etc, you will find it is compatible to AST2400 or AST2500 + * + * Keep the one-hot behaviour for backwards compatibility except for + * supporting the value 0 in (EMMC12C[7:6], EMMC12C[15:8]), and capture + * the 0-value capability in clk_div_start. + */ + for (div = sdhci->pdata->clk_div_start; div < 256; div *= 2) { bus = parent / div; if (bus <= clock) break; @@ -316,6 +336,10 @@ static int aspeed_sdhci_probe(struct platform_device *pdev) int ret; aspeed_pdata = of_device_get_match_data(&pdev->dev); + if (!aspeed_pdata) { + dev_err(&pdev->dev, "Missing platform configuration data\n"); + return -EINVAL; + } host = sdhci_pltfm_init(pdev, &aspeed_sdhci_pdata, sizeof(*dev)); if (IS_ERR(host)) @@ -334,7 +358,7 @@ static int aspeed_sdhci_probe(struct platform_device *pdev) else if (slot >= 2) return -EINVAL; - if (dev->pdata && slot < dev->pdata->nr_phase_descs) { + if (slot < dev->pdata->nr_phase_descs) { dev->phase_desc = &dev->pdata->phase_desc[slot]; } else { dev_info(&pdev->dev, @@ -396,6 +420,10 @@ static int aspeed_sdhci_remove(struct platform_device *pdev) return 0; } +static const struct aspeed_sdhci_pdata ast2400_sdhci_pdata = { + .clk_div_start = 2, +}; + static const struct aspeed_sdhci_phase_desc ast2600_sdhci_phase[] = { /* SDHCI/Slot 0 */ [0] = { @@ -426,13 +454,14 @@ static const struct aspeed_sdhci_phase_desc ast2600_sdhci_phase[] = { }; static const struct aspeed_sdhci_pdata ast2600_sdhci_pdata = { + .clk_div_start = 1, .phase_desc = ast2600_sdhci_phase, .nr_phase_descs = ARRAY_SIZE(ast2600_sdhci_phase), }; static const struct of_device_id aspeed_sdhci_of_match[] = { - { .compatible = "aspeed,ast2400-sdhci", }, - { .compatible = "aspeed,ast2500-sdhci", }, + { .compatible = "aspeed,ast2400-sdhci", .data = &ast2400_sdhci_pdata, }, + { .compatible = "aspeed,ast2500-sdhci", .data = &ast2400_sdhci_pdata, }, { .compatible = "aspeed,ast2600-sdhci", .data = &ast2600_sdhci_pdata, }, { } }; From patchwork Thu Jan 14 03:14:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jeffery X-Patchwork-Id: 12018573 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 84402C433E0 for ; Thu, 14 Jan 2021 03:17:16 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3052D235FA for ; Thu, 14 Jan 2021 03:17:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3052D235FA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=522d2L6J8ojPuHOQiE2mlMHpovYS4XthPpxFtqbS2HI=; b=znrIehgINwX0j6dNpxXG51QFh VEuGDLH+rq5jsP+AB3XQWK7kcREV5EXhSzqqj4XhxLeQTQGMeGs9voSKL5VaDb2OZcB7sg9/aF/kC sOax+ad1AY0pKZFYBnLmJ5PNH2L61//3gMlsMUK5Y1ZMJmN1kFEMWOxFpllhrzgieYkgKfW97R8A4 kUXPhhSvN30u/i68I7Fm2Mnt+b3Lddgo5m22sLOuIsx1/WkwXqEreBqm+2n9oPJsPE/1EBljWz1tT WqlmFpdgOI2w6JJcvvduAR6jzrp5B9XA+ZAcWJJBIZ8+SRHOdG//izVmfjIC4vRi2JGBgs9D1gyqK YF75TKdcw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6e-0002x3-El; Thu, 14 Jan 2021 03:15:28 +0000 Received: from out2-smtp.messagingengine.com ([66.111.4.26]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6C-0002mz-Cy for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 03:15:09 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 9797A5C01EF; Wed, 13 Jan 2021 22:14:59 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 13 Jan 2021 22:14:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=ktBCKi+jUj0gt 3Epu2Bu08gNzdGJ5hXrCRAOgWSc5t4=; b=UzVoNnS2aPuyzVsDxYNj846XDyltG LZPJXiUy75PZAOQ6Wkps8EDQMwPmU3IISerd82dRa10fLHoo12lUrqKCkW9s/Bx5 3+vC0Fxm0JDlcQVr/btALCOHhq5gTaDMIeuKyCZ4Ka2pJw4uFNFcs+D1pC5pwLXp Xsw2g+aM/ShZbAbDKaC3fxoCN0xciPluE0EH6ckPa09ehpyr68NH/eGQInTNVx1p IRpaCK5wcVO3HVDun2sD57lZimvhMNi8mOVxNi4b9QtavxuhwDVGQx5FXMkheZ3p GjATKVno70b8I3Xw3AIfd4J8UlvQhVbU7rClmGyAccijVb6SGgEgtY05w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=ktBCKi+jUj0gt3Epu2Bu08gNzdGJ5hXrCRAOgWSc5t4=; b=iFDU7uX8 Vyrlo5F/5czvCzBbCfYO7yOHmjdgMiaVtT3koHt3CiQZEPfw+n8gMhRjBT9/W1Xw DYW13JEqDGm2BQyft+2TEt103WVU+FTgGwSRBOgM91mRci0NmgEMYkr3FZNEN4lz EM9FrBQM/Uw86thdChOzbMI7DSpzz1sjYRyOFsE6Ggk7QvNvdc34mQfInXRdvCkJ c6cCzq/5oj+J+yrI68a9T6ow+Mpe5eROPYFsQxm7k0/nwDWcPkUNpAPFVXG3dtqj 8zYNrxQ3Xee8birKUY12+VPaX75rvhld56uVRed/vugIG6UTNX1wJJawCLoWFL++ qI4+FfuIG3yI+Q== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedukedrtdeggdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetnhgurhgvficulfgvfhhfvghrhicuoegrnhgurhgvfiesrghj rdhiugdrrghuqeenucggtffrrghtthgvrhhnpeejgfdvveehteekveeggeellefgleette ejffelffdvudduveeiffegteelvefhteenucfkphepuddukedrvddutddrudejfedrgeek necuvehluhhsthgvrhfuihiivgepfeenucfrrghrrghmpehmrghilhhfrhhomheprghnug hrvgifsegrjhdrihgurdgruh X-ME-Proxy: Received: from localhost.localdomain (ppp118-210-173-48.adl-adc-lon-bras34.tpg.internode.on.net [118.210.173.48]) by mail.messagingengine.com (Postfix) with ESMTPA id 55CCF24005E; Wed, 13 Jan 2021 22:14:56 -0500 (EST) From: Andrew Jeffery To: linux-mmc@vger.kernel.org Subject: [PATCH v7 4/6] mmc: sdhci-of-aspeed: Add KUnit tests for phase calculations Date: Thu, 14 Jan 2021 13:44:31 +1030 Message-Id: <20210114031433.2388532-5-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114031433.2388532-1-andrew@aj.id.au> References: <20210114031433.2388532-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_221500_603982_E9028D5F X-CRM114-Status: GOOD ( 16.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, ryan_chen@aspeedtech.com, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, robh+dt@kernel.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Converting degrees of phase to logic delays is irritating to test on hardware, so lets exercise the function using KUnit. Signed-off-by: Andrew Jeffery --- drivers/mmc/host/Kconfig | 14 ++++ drivers/mmc/host/sdhci-of-aspeed-test.c | 98 +++++++++++++++++++++++++ drivers/mmc/host/sdhci-of-aspeed.c | 4 + 3 files changed, 116 insertions(+) create mode 100644 drivers/mmc/host/sdhci-of-aspeed-test.c diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 596f32637315..d6f00d1d6251 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -168,6 +168,20 @@ config MMC_SDHCI_OF_ASPEED If unsure, say N. +config MMC_SDHCI_OF_ASPEED_TEST + bool "Tests for the ASPEED SDHCI driver" + depends on MMC_SDHCI_OF_ASPEED && KUNIT=y + help + Enable KUnit tests for the ASPEED SDHCI driver. Select this + option only if you will boot the kernel for the purpose of running + unit tests (e.g. under UML or qemu). + + The KUnit tests generally exercise parts of the driver that do not + directly touch the hardware, for example, the phase correction + calculations. + + If unsure, say N. + config MMC_SDHCI_OF_AT91 tristate "SDHCI OF support for the Atmel SDMMC controller" depends on MMC_SDHCI_PLTFM diff --git a/drivers/mmc/host/sdhci-of-aspeed-test.c b/drivers/mmc/host/sdhci-of-aspeed-test.c new file mode 100644 index 000000000000..34070605b28b --- /dev/null +++ b/drivers/mmc/host/sdhci-of-aspeed-test.c @@ -0,0 +1,98 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Copyright (C) 2020 IBM Corp. */ + +#include + +static void aspeed_sdhci_phase_ddr52(struct kunit *test) +{ + int rate = 52000000; + + KUNIT_EXPECT_EQ(test, 0, + aspeed_sdhci_phase_to_tap(NULL, rate, 0)); + KUNIT_EXPECT_EQ(test, 0, + aspeed_sdhci_phase_to_tap(NULL, rate, 1)); + KUNIT_EXPECT_EQ(test, 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 2)); + KUNIT_EXPECT_EQ(test, 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 3)); + KUNIT_EXPECT_EQ(test, 2, + aspeed_sdhci_phase_to_tap(NULL, rate, 4)); + KUNIT_EXPECT_EQ(test, 3, + aspeed_sdhci_phase_to_tap(NULL, rate, 5)); + KUNIT_EXPECT_EQ(test, 14, + aspeed_sdhci_phase_to_tap(NULL, rate, 23)); + KUNIT_EXPECT_EQ(test, 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 24)); + KUNIT_EXPECT_EQ(test, 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 25)); + + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 0, + aspeed_sdhci_phase_to_tap(NULL, rate, 180)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 0, + aspeed_sdhci_phase_to_tap(NULL, rate, 181)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 182)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 183)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 2, + aspeed_sdhci_phase_to_tap(NULL, rate, 184)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 3, + aspeed_sdhci_phase_to_tap(NULL, rate, 185)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 14, + aspeed_sdhci_phase_to_tap(NULL, rate, 203)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 204)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 205)); +} + +static void aspeed_sdhci_phase_hs200(struct kunit *test) +{ + int rate = 200000000; + + KUNIT_EXPECT_EQ(test, 0, + aspeed_sdhci_phase_to_tap(NULL, rate, 0)); + KUNIT_EXPECT_EQ(test, 0, + aspeed_sdhci_phase_to_tap(NULL, rate, 5)); + KUNIT_EXPECT_EQ(test, 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 6)); + KUNIT_EXPECT_EQ(test, 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 7)); + KUNIT_EXPECT_EQ(test, 14, + aspeed_sdhci_phase_to_tap(NULL, rate, 89)); + KUNIT_EXPECT_EQ(test, 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 90)); + KUNIT_EXPECT_EQ(test, 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 91)); + KUNIT_EXPECT_EQ(test, 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 96)); + + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK, + aspeed_sdhci_phase_to_tap(NULL, rate, 180)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK, + aspeed_sdhci_phase_to_tap(NULL, rate, 185)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 186)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, + aspeed_sdhci_phase_to_tap(NULL, rate, 187)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 14, + aspeed_sdhci_phase_to_tap(NULL, rate, 269)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 270)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 271)); + KUNIT_EXPECT_EQ(test, (int)ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, + aspeed_sdhci_phase_to_tap(NULL, rate, 276)); +} + +static struct kunit_case aspeed_sdhci_test_cases[] = { + KUNIT_CASE(aspeed_sdhci_phase_ddr52), + KUNIT_CASE(aspeed_sdhci_phase_hs200), + {} +}; + +static struct kunit_suite aspeed_sdhci_test_suite = { + .name = "sdhci-of-aspeed", + .test_cases = aspeed_sdhci_test_cases, +}; +kunit_test_suite(aspeed_sdhci_test_suite); diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c index 4b30f6a1178e..3b0d381e1215 100644 --- a/drivers/mmc/host/sdhci-of-aspeed.c +++ b/drivers/mmc/host/sdhci-of-aspeed.c @@ -579,6 +579,10 @@ static void __exit aspeed_sdc_exit(void) } module_exit(aspeed_sdc_exit); +#if defined(CONFIG_MMC_SDHCI_OF_ASPEED_TEST) +#include "sdhci-of-aspeed-test.c" +#endif + MODULE_DESCRIPTION("Driver for the ASPEED SD/SDIO/SDHCI Controllers"); MODULE_AUTHOR("Ryan Chen "); MODULE_AUTHOR("Andrew Jeffery "); From patchwork Thu Jan 14 03:14:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jeffery X-Patchwork-Id: 12018567 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 D7407C433E0 for ; Thu, 14 Jan 2021 03:17:03 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8496D23619 for ; Thu, 14 Jan 2021 03:17:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8496D23619 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kIxbdxKpjXR+6a4H8u76edVbnUieDUkjZ5cNetpzqaY=; b=gk+U0ISHWWpBk9L3bvyECvWGQ tGF+bSa1zn1mA0uQXHIHKnunhWHWONiBy8EW0qi1Mfcr+sszR/gaj70xEvfgKOxSMm/xs2gfwU7dx hy/HPmgzGOllaTTRhKN3ENffh+mMdCI3VtQpCE9fXwxLxZ+/HIQlPGfTZ1vWmyTT8SAKnYte5cNM0 vpcA17CDPOgqSfr3kVa7e1PwmdugpDwVQNbBL2E/w5/YSr1iywP01Ilrvc99futYEwZLS+E+qMaGm NemiaZXuaQVDKG3lIgWxXOyRfmNHT1iVf/3qa/wKYZXZyEqLyjOH2MOi8I6aHLfv/u9GgIFOST6Ms UTs/r60mg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6a-0002vi-UV; Thu, 14 Jan 2021 03:15:24 +0000 Received: from out2-smtp.messagingengine.com ([66.111.4.26]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6F-0002oF-Ns for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 03:15:08 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 6B6715C01F0; Wed, 13 Jan 2021 22:15:03 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 13 Jan 2021 22:15:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=3IBtn55EkJHpw BMNVFMzrRkc/Dri1oJfvyFIx80EIec=; b=ahH+rH2KDaPSO7H+bl1pbfOK1DsCC 0vpFHookOMVM468MK2Uzy380aBvm6qKpD6IqCauZN6ubKlxVT0vwRhFfAZobI4/d GftvqCKhCzy17bCejzkCX+x9eGewn0lInxfdLwqIbrY8O3MUJQGvhPB9SEUuK8Zd GPKnvJKxoG/RmAQ8ONGVOgOmVshCxiBGKHNZR1DdPquuwqKC2mG7sL9/tdpeoQSp AakED7sFOwYzFTMy6ktARrfN4FDctj3iBO7NJMcqG3dBlL/6UMNSfTPKOZ9DuzOy JL2f7VUqPfBVhY5T4FJla1ioDfUVOg9OjuOGoM5vdOZ14Rm0eeO2r6eTg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=3IBtn55EkJHpwBMNVFMzrRkc/Dri1oJfvyFIx80EIec=; b=qOXDJQ6P bDu7UQIQxMcS4SkIkF0+Oj6qbTgdnKMjd5/RMyOtxW8BKynNlbKtxsBdVVUFGTO6 7PGK/rqWFvOAbZqvAT3bULE9EI4AgffUEhOZs4kZXH9huBlJBfhUPS+1Mn5Jsfjo xmh3jfeWg3UhqCUxdaN8CqVnFX63wJrXGn0n4lPuvGtIqKhyQe5lUlzfjkNaKdUQ A9Y0Ryd3L0E2LOy1wXBEpdpt02ZV21hnjWoRpoNBxY1tFCDuMG8SBPeW8EK2B42E CDZitG75ONX7PhqZylAsIgm+P8Uk58OGZLmFuEzzxjnW56l7It9yPoeca0EBw5Bn KvJq82hSTmUkjQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedukedrtdeggdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetnhgurhgvficulfgvfhhfvghrhicuoegrnhgurhgvfiesrghj rdhiugdrrghuqeenucggtffrrghtthgvrhhnpeejgfdvveehteekveeggeellefgleette ejffelffdvudduveeiffegteelvefhteenucfkphepuddukedrvddutddrudejfedrgeek necuvehluhhsthgvrhfuihiivgepgeenucfrrghrrghmpehmrghilhhfrhhomheprghnug hrvgifsegrjhdrihgurdgruh X-ME-Proxy: Received: from localhost.localdomain (ppp118-210-173-48.adl-adc-lon-bras34.tpg.internode.on.net [118.210.173.48]) by mail.messagingengine.com (Postfix) with ESMTPA id F07F224005D; Wed, 13 Jan 2021 22:14:59 -0500 (EST) From: Andrew Jeffery To: linux-mmc@vger.kernel.org Subject: [PATCH v7 5/6] MAINTAINERS: Add entry for the ASPEED SD/MMC driver Date: Thu, 14 Jan 2021 13:44:32 +1030 Message-Id: <20210114031433.2388532-6-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114031433.2388532-1-andrew@aj.id.au> References: <20210114031433.2388532-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_221503_931153_14566F16 X-CRM114-Status: UNSURE ( 8.48 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, ryan_chen@aspeedtech.com, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, robh+dt@kernel.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add myself as the maintainer. Signed-off-by: Andrew Jeffery --- MAINTAINERS | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index e451dcce054f..eae4322aae67 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2826,6 +2826,15 @@ F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic. F: drivers/irqchip/irq-aspeed-scu-ic.c F: include/dt-bindings/interrupt-controller/aspeed-scu-ic.h +ASPEED SD/MMC DRIVER +M: Andrew Jeffery +L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers) +L: openbmc@lists.ozlabs.org (moderated for non-subscribers) +L: linux-mmc@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml +F: drivers/mmc/host/sdhci-of-aspeed* + ASPEED VIDEO ENGINE DRIVER M: Eddie James L: linux-media@vger.kernel.org From patchwork Thu Jan 14 03:14:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jeffery X-Patchwork-Id: 12018571 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 83558C4332D for ; Thu, 14 Jan 2021 03:17:14 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3C244235FA for ; Thu, 14 Jan 2021 03:17:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3C244235FA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aj.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=GAvKCeLYOiLuWsh0UaZHgZxNhLXwL9jAyjaH3jPNgQo=; b=IT/wJXjQ8inZVGT8tTK3l634C fmiPMkyBeBNIbSSgwIKNm7M4ZiCc8J/YyAez1WcrODVmwwHzIcUNTNNQIPjzg79iN+CPmEc8RJ7r8 Z8D2qjsYjcJxMFcF75c/0PDN3KFAdfUx0jzuRq0Re22TKVDib0AW2eQrW26JpRojTdbCkwMkoUAYy IxNcNe2fkPBc8LlyTGsLhz7eL6gywXUpBJPMDBhrkH3Rb+e5qmRxbOr3xycA8UW0e61frI9amyqhG 2a3Qu5ztmeQ0+rvROw3rmLj0ZmF8aprgTwrtbWz/vMvc42JQZlH0HcsJ68XQg8qk+ZHFlRR8obFNs eSMtTDA4w==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6o-00031e-0T; Thu, 14 Jan 2021 03:15:38 +0000 Received: from out2-smtp.messagingengine.com ([66.111.4.26]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kzt6J-0002pD-DI for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2021 03:15:11 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 232F35C01F3; Wed, 13 Jan 2021 22:15:07 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 13 Jan 2021 22:15:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aj.id.au; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=R9UFuHjtAK1qQ YI8cmha4Thpo1402hfejrmvtlGfR4Y=; b=TT2Y9XJx6o5kizRNy4MAGIOQ3EFGO zbWTFGak2KnxFNIfwkWuijLkhgnOb1DyiZII5Fedp85p+tp9zpOI2HIkTCIJIegI qtobpI5ut+stQ1OkBlXhcNBrPMJ0rCCzOoXFEPC2v6Pavpj3mj7Qj/LIPGfP7eH/ JQAO4V7yEXROBH1KXCOZah1bwL2Iz2u09Jzebi8nU1tpHztxl4YAFCGjshUVg0YI 2zsVe7ulI467cEo9TRq/oNlcFpaqLrWIzTKl8ag8LgcuU2XwtFnsV2jQhVxARKhK pybZbAHAn5PGuIq333kA9eKIUtVK9uEkXKxWYmlB46kKe40jqEtT4ENgw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=R9UFuHjtAK1qQYI8cmha4Thpo1402hfejrmvtlGfR4Y=; b=HF7EbpQP 8vOfcBDfR5TAbgkPTDRBzLfAudjHZZkyokMXnIBmrF/x3ZPhlrbFoAUDk1eYHJEL UOAeo8ceqvZBVhw6EdZvMexEyik1K1iPIFuHKZTPE4kCJFFD4Ph0LIE/dvkPtlz4 8gNX8qBZ9Vxx47cGpV354itsgCMU6ITIKs58HaRiQfulWLBcEhujrcSiAHO6W5F5 8yPLxRfxRhSbo9PGX1x+FRPN/7Ag+5fEaib7luhVhOqAZhHVMpHhrNs1a6bs8z+E UyUIyWwkQJ3NjewjZMxA/zgGvw5aLUY7ZrWZij0fXX7+E6ZtXuPuq8mK1f0v1vbu Dv6seHlSr4sdFg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedukedrtdeggdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetnhgurhgvficulfgvfhhfvghrhicuoegrnhgurhgvfiesrghj rdhiugdrrghuqeenucggtffrrghtthgvrhhnpeejgfdvveehteekveeggeellefgleette ejffelffdvudduveeiffegteelvefhteenucfkphepuddukedrvddutddrudejfedrgeek necuvehluhhsthgvrhfuihiivgepgeenucfrrghrrghmpehmrghilhhfrhhomheprghnug hrvgifsegrjhdrihgurdgruh X-ME-Proxy: Received: from localhost.localdomain (ppp118-210-173-48.adl-adc-lon-bras34.tpg.internode.on.net [118.210.173.48]) by mail.messagingengine.com (Postfix) with ESMTPA id CC2E724005D; Wed, 13 Jan 2021 22:15:03 -0500 (EST) From: Andrew Jeffery To: linux-mmc@vger.kernel.org Subject: [PATCH v7 6/6] ARM: dts: rainier: Add eMMC clock phase compensation Date: Thu, 14 Jan 2021 13:44:33 +1030 Message-Id: <20210114031433.2388532-7-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114031433.2388532-1-andrew@aj.id.au> References: <20210114031433.2388532-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_221507_552712_F05AE58E X-CRM114-Status: UNSURE ( 9.82 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, ryan_chen@aspeedtech.com, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, adrian.hunter@intel.com, robh+dt@kernel.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Determined by scope measurements at speed. Signed-off-by: Andrew Jeffery --- arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts index 21ae880c7530..ab8d37d49f30 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts @@ -186,6 +186,7 @@ &pinctrl_emmc_default { &emmc { status = "okay"; + clk-phase-mmc-hs200 = <180>, <180>; }; &fsim0 {