From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,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 ED159C5518E for ; Wed, 22 Apr 2020 12:59:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D66C5206EC for ; Wed, 22 Apr 2020 12:59:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726984AbgDVM7Y (ORCPT ); Wed, 22 Apr 2020 08:59:24 -0400 Received: from sauhun.de ([88.99.104.3]:47578 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726731AbgDVM7X (ORCPT ); Wed, 22 Apr 2020 08:59:23 -0400 Received: from localhost (p5486CD65.dip0.t-ipconnect.de [84.134.205.101]) by pokefinder.org (Postfix) with ESMTPSA id CA6A22C1F8B; Wed, 22 Apr 2020 14:59:19 +0200 (CEST) From: Wolfram Sang To: linux-mmc@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda , Wolfram Sang Subject: [PATCH 0/2] mmc: renesas_sdhi: avoid bad TAPs for Gen3 Date: Wed, 22 Apr 2020 14:59:12 +0200 Message-Id: <20200422125914.16590-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Here is a series which avoids using TAPs on R-Car Gen3 SoCs which are bad to use according to HW engineers. The patch was originally for the BSP (Thanks, Saito-san) and has been upported for the upstream driver. Before we can apply this, we need to add some mising information for R-Car M3-W ES1.[23]. Patches have been tested on Renesas Salvator-XS boards with R-Car H3 ES2.0 (changing from TAP3 to TAP4 here) and R-Car M3-N (changing from TAP7 to TAP0 here). A branch can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/sdhi/new_manual_calib It is based on current mmc/next + "[PATCH] mmc: renesas_sdhi: shorten types after refactorization" One implementation detail: For now, I kept using a generic naming for the quirks, e.g. "sdhi_quirks_bad_taps2367". It is possible that we need to rename/add ones later which are SoC bound, e.g. "sdhi_quirks_m3w_30". Especially when we add manual calibration somewhen. But for now, the generic approach seems better to me, so I sticked to it. Looking forward to further comments and/or testing. Happy hacking, Wolfram Takeshi Saito (1): mmc: renesas_sdhi: Avoid bad TAP in HS400 Wolfram Sang (1): mmc: renesas_sdhi: handle M3-N ES1.2 and 1.3 revisions drivers/mmc/host/renesas_sdhi.h | 1 + drivers/mmc/host/renesas_sdhi_core.c | 62 ++++++++++++++++++++++++---- 2 files changed, 55 insertions(+), 8 deletions(-) -- 2.20.1