From patchwork Mon Mar 20 20:48:32 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vikas MANOCHA X-Patchwork-Id: 741209 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3vn8473YSGz9s06 for ; Tue, 21 Mar 2017 08:20:23 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id E9C4DC21CD7; Mon, 20 Mar 2017 21:11:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 7FDFFC21CC7; Mon, 20 Mar 2017 21:10:06 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 843D1C21CB8; Mon, 20 Mar 2017 21:09:39 +0000 (UTC) Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) by lists.denx.de (Postfix) with ESMTPS id 68494C21CDF for ; Mon, 20 Mar 2017 21:09:36 +0000 (UTC) Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id v2KL9Ypa026329; Mon, 20 Mar 2017 22:09:34 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-.pphosted.com with ESMTP id 298vnfshk5-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 20 Mar 2017 22:09:34 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id CA95831; Mon, 20 Mar 2017 21:09:31 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag7node3.st.com [10.75.127.21]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id B272F4E4D; Mon, 20 Mar 2017 21:09:31 +0000 (GMT) Received: from localhost (10.75.127.50) by SFHDAG7NODE3.st.com (10.75.127.21) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Mon, 20 Mar 2017 22:09:30 +0100 From: Vikas Manocha To: Date: Mon, 20 Mar 2017 13:48:32 -0700 Message-ID: <1490042927-27450-7-git-send-email-vikas.manocha@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1490042927-27450-1-git-send-email-vikas.manocha@st.com> References: <1490042927-27450-1-git-send-email-vikas.manocha@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.50] X-ClientProxiedBy: SFHDAG4NODE1.st.com (10.75.127.10) To SFHDAG7NODE3.st.com (10.75.127.21) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-03-20_15:, , signatures=0 Cc: Christophe KERELLO , Hans de Goede , Ian Campbell Subject: [U-Boot] [PATCH 06/18] stm32f7: use clock driver to enable sdram controller clock X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 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" This patch also removes the sdram/fmc clock enable from board specific code. Signed-off-by: Vikas Manocha cc: Christophe KERELLO --- arch/arm/dts/stm32f746.dtsi | 1 + board/st/stm32f746-disco/stm32f746-disco.c | 2 -- drivers/ram/stm32_sdram.c | 15 +++++++++++++++ 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/arch/arm/dts/stm32f746.dtsi b/arch/arm/dts/stm32f746.dtsi index 3707550..e9fd6f4 100644 --- a/arch/arm/dts/stm32f746.dtsi +++ b/arch/arm/dts/stm32f746.dtsi @@ -74,6 +74,7 @@ fmc: fmc@A0000000 { compatible = "st,stm32-fmc"; reg = <0xA0000000 0x1000>; + clocks = <&rcc 0 64>; u-boot,dm-pre-reloc; }; diff --git a/board/st/stm32f746-disco/stm32f746-disco.c b/board/st/stm32f746-disco/stm32f746-disco.c index e1113a6..370db15 100644 --- a/board/st/stm32f746-disco/stm32f746-disco.c +++ b/board/st/stm32f746-disco/stm32f746-disco.c @@ -51,8 +51,6 @@ int dram_init(void) if (rv) return rv; - clock_setup(FMC_CLOCK_CFG); - rv = uclass_get_device(UCLASS_RAM, 0, &dev); if (rv) { debug("DRAM init failed: %d\n", rv); diff --git a/drivers/ram/stm32_sdram.c b/drivers/ram/stm32_sdram.c index 67be61f..67d8855 100644 --- a/drivers/ram/stm32_sdram.c +++ b/drivers/ram/stm32_sdram.c @@ -6,6 +6,7 @@ */ #include +#include #include #include #include @@ -122,6 +123,20 @@ int stm32_sdram_init(void) static int stm32_fmc_probe(struct udevice *dev) { +#ifdef CONFIG_CLK + int ret; + struct clk clk; + ret = clk_get_by_index(dev, 0, &clk); + if (ret < 0) + return ret; + + ret = clk_enable(&clk); + + if (ret) { + dev_err(dev, "failed to enable clock\n"); + return ret; + } +#endif stm32_sdram_init(); return 0; }