From patchwork Thu Jun 10 12:58:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhou Yanjie X-Patchwork-Id: 12313127 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 7AB84C47094 for ; Thu, 10 Jun 2021 12:59:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 602AD61403 for ; Thu, 10 Jun 2021 12:59:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230370AbhFJNBJ (ORCPT ); Thu, 10 Jun 2021 09:01:09 -0400 Received: from out28-121.mail.aliyun.com ([115.124.28.121]:35411 "EHLO out28-121.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230392AbhFJNBD (ORCPT ); Thu, 10 Jun 2021 09:01:03 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.1723083|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_alarm|0.0591475-0.0029278-0.937925;FP=0|0|0|0|0|-1|-1|-1;HT=ay29a033018047207;MF=zhouyanjie@wanyeetech.com;NM=1;PH=DS;RN=14;RT=14;SR=0;TI=SMTPD_---.KQVfrD4_1623329936; Received: from zhouyanjie-virtual-machine.lan(mailfrom:zhouyanjie@wanyeetech.com fp:SMTPD_---.KQVfrD4_1623329936) by smtp.aliyun-inc.com(10.147.41.137); Thu, 10 Jun 2021 20:59:04 +0800 From: =?utf-8?b?5ZGo55Cw5p2wIChaaG91IFlhbmppZSk=?= To: ulf.hansson@linaro.org, robh+dt@kernel.org Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com, rick.tyliu@ingenic.com, sihui.liu@ingenic.com, jun.jiang@ingenic.com, sernia.zhou@foxmail.com, zhenwenjin@gmail.com, paul@crapouillou.net Subject: [PATCH v2 2/2] mmc: JZ4740: Add support for JZ4775. Date: Thu, 10 Jun 2021 20:58:50 +0800 Message-Id: <1623329930-14387-3-git-send-email-zhouyanjie@wanyeetech.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1623329930-14387-1-git-send-email-zhouyanjie@wanyeetech.com> References: <1623329930-14387-1-git-send-email-zhouyanjie@wanyeetech.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org 1.Add support for probing mmc driver on the JZ4775 SoC from Ingenic. 2.The drive clock selection and sample clock selection have been supported since JZ4775, not X1000. So support for these two functions has been added for JZ4775 and JZ4780. Signed-off-by: 周琰杰 (Zhou Yanjie) Acked-by: Paul Cercueil --- Notes: v1->v2: 1.Remove unnecessary renaming as Paul Cercueil's suggestion. 2.Reuse the ID of JZ4775 and JZ4780 to simplify the code. 3.Add support of drive clock selection and sample clock selection for JZ4775 and JZ4780. drivers/mmc/host/jz4740_mmc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c index b3c636e..f3172e5 100644 --- a/drivers/mmc/host/jz4740_mmc.c +++ b/drivers/mmc/host/jz4740_mmc.c @@ -674,7 +674,7 @@ static void jz4740_mmc_send_command(struct jz4740_mmc_host *host, cmdat |= JZ_MMC_CMDAT_WRITE; if (host->use_dma) { /* - * The 4780's MMC controller has integrated DMA ability + * The JZ4780's MMC controller has integrated DMA ability * in addition to being able to use the external DMA * controller. It moves DMA control bits to a separate * register. The DMA_SEL bit chooses the external @@ -866,7 +866,7 @@ static int jz4740_mmc_set_clock_rate(struct jz4740_mmc_host *host, int rate) writew(div, host->base + JZ_REG_MMC_CLKRT); if (real_rate > 25000000) { - if (host->version >= JZ_MMC_X1000) { + if (host->version >= JZ_MMC_JZ4780) { writel(JZ_MMC_LPM_DRV_RISING_QTR_PHASE_DLY | JZ_MMC_LPM_SMP_RISING_QTR_OR_HALF_PHASE_DLY | JZ_MMC_LPM_LOW_POWER_MODE_EN, @@ -959,6 +959,7 @@ static const struct of_device_id jz4740_mmc_of_match[] = { { .compatible = "ingenic,jz4740-mmc", .data = (void *) JZ_MMC_JZ4740 }, { .compatible = "ingenic,jz4725b-mmc", .data = (void *)JZ_MMC_JZ4725B }, { .compatible = "ingenic,jz4760-mmc", .data = (void *) JZ_MMC_JZ4760 }, + { .compatible = "ingenic,jz4775-mmc", .data = (void *) JZ_MMC_JZ4780 }, { .compatible = "ingenic,jz4780-mmc", .data = (void *) JZ_MMC_JZ4780 }, { .compatible = "ingenic,x1000-mmc", .data = (void *) JZ_MMC_X1000 }, {},