From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.forwardemail.net (smtp.forwardemail.net [121.127.44.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B20292080C5 for ; Thu, 6 Mar 2025 09:16:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=121.127.44.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741252581; cv=none; b=P0rexdx+UddGbMhO4mYErOkC/XfGVfVcEoOrsTXWmJoNgKb4WbHdzWULVFCnAnHJxtMoC64qa3VUbVq3E9oVA+myhFFqNIFHAaK3KubIxFuS8ffDNFknCEf3g65f6415avexlSHe2HFLLWg1zAtC+AVJ0XjIWJ3Xc7SAhp1RyGs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741252581; c=relaxed/simple; bh=ez7fXHbcJGYq2SnIqFCwWZQdodHUT0BjextfpLy9HLs=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uR1d8yUwBZvZUebESeakNi5CRlcrNwYzn0dd+uhcFPuT1mUcIjc3nWPQRlSd8AMfUCGkjQRuSzm1uyoSe+QQWS8eYKhbGZU9N8hAP+31Zt37C2NBjQ0hO8wWbnHfOUClO9t1IHof2011ydAx6uGCCUB+Ssdsd3MyFmIECy1XaiU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b=odWYKnCV; arc=none smtp.client-ip=121.127.44.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b="odWYKnCV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: Content-Type: In-Reply-To: From: References: Cc: To: Subject: MIME-Version: Date: Message-ID; q=dns/txt; s=fe-e1b5cab7be; t=1741252570; bh=U6wIo8sTMBr3RbRnbR8Rzc/ze/1O+F9622aQgZcZWCQ=; b=odWYKnCVGaDPms2yTTGriGNTt27y6M/lLAyJTmNvD+xpvmcC63VS49U0KvMiCcArwIoOxVRHr jM4XbYdz14+0p48RCGTwEWHSWZvJ9tg9GtyLzFGG6p7Yz+MQUGDrrsgSDNKn6pC0XYUeZHwJluN pCKNDt+NItX+LhKgRgsvPSkhM+eo+OSgc+PNLwq0PeeO2zayn5axD37tSnbts6mwciooNkvEWtB 4ndSk1mTisFVNUE4QHbrMpBLcKnxrTQsLPnlQUwSSH2HAKjkCFMEmOMA2oUTjwk4kUu6X1nCigj sF03y5g3XjnbQUqvK9WRgIBWyCgOCfSqK7U5m6q30yZg== X-Forward-Email-ID: 67c967d67c40f20919024cb4 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.73 X-Forward-Email-Version: 0.4.40 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net Message-ID: Date: Thu, 6 Mar 2025 10:16:00 +0100 Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/3] rockchip: Add support for onboard eMMC on Radxa E20C To: Chukun Pan Cc: conor+dt@kernel.org, devicetree@vger.kernel.org, heiko@sntech.de, krzk+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-rockchip@lists.infradead.org References: <20250305214108.1327208-1-jonas@kwiboo.se> <20250306090001.113127-1-amadeus@jmu.edu.cn> Content-Language: en-US From: Jonas Karlman In-Reply-To: <20250306090001.113127-1-amadeus@jmu.edu.cn> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Chukun, On 2025-03-06 10:00, Chukun Pan wrote: > Hi, > >> Driver changes to use different delay and tap num is needed to be able >> to support HS400 modes, something for a future series. With this HS200 >> mode should work: > > I have tried HS200 mode on other rk3528 boards and it works fine, > so can we enable HS200 mode for Radxa E20C first? The host controller already report the HS200 mode, and as shown in cover letter HS200 mode is being enabled/used with this series. However, the driver must use different tap/delay num for HS400(ES) modes. At top of [1] there is a commit that changes to use same tap/delay num as vendor kernel and what I have tested worked in U-Boot. That commit needs to be re-worked before it is ready. Also see [2] for pending work before I plan to complete before moving on to the dwcmshc driver. [1] https://github.com/Kwiboo/linux-rockchip/commits/next-20250227-rk3528-rk3506/ [2] https://github.com/Kwiboo/linux-rockchip/commits/next-20250305-rk3528/ Regards, Jonas > > Thanks, > Chukun >