rpms/kernel
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Upstream fix for WP detection on SD card

Browse Source
This commit is contained in:
Peter Robinson 2019-08-29 17:50:31 +01:00
parent 82cbb5a6a7
commit b5f1f90cb8
3 changed files with 160 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

158
arm64-Revert-mmc-sdhci-tegra-drop---get_ro-implementation.patch Normal file
View File

@ -0,0 +1,158 @@
From patchwork Thu Aug 8 22:24:30 2019
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dmitry Osipenko <digetx@gmail.com>
X-Patchwork-Id: 11084925
Return-Path: <linux-mmc-owner@kernel.org>
Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org
[172.30.200.125])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E38C414DB
for <patchwork-linux-mmc@patchwork.kernel.org>;
Thu, 8 Aug 2019 22:25:47 +0000 (UTC)
Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1])
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D121728911
for <patchwork-linux-mmc@patchwork.kernel.org>;
Thu, 8 Aug 2019 22:25:47 +0000 (UTC)
Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486)
id C3F6B289AD; Thu, 8 Aug 2019 22:25:47 +0000 (UTC)
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
pdx-wl-mail.web.codeaurora.org
X-Spam-Level:
X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED,
DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI
autolearn=ham version=3.3.1
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 656C628911
for <patchwork-linux-mmc@patchwork.kernel.org>;
Thu, 8 Aug 2019 22:25:47 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
id S2404695AbfHHWZr (ORCPT
<rfc822;patchwork-linux-mmc@patchwork.kernel.org>);
Thu, 8 Aug 2019 18:25:47 -0400
Received: from mail-lj1-f196.google.com ([209.85.208.196]:39456 "EHLO
mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
with ESMTP id S1732708AbfHHWZq (ORCPT
<rfc822;linux-mmc@vger.kernel.org>); Thu, 8 Aug 2019 18:25:46 -0400
Received: by mail-lj1-f196.google.com with SMTP id v18so90278587ljh.6;
Thu, 08 Aug 2019 15:25:45 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=20161025;
h=from:to:cc:subject:date:message-id:mime-version
:content-transfer-encoding;
bh=Q9p8dp4Vwd7zb49ZfmkHjOde2lTf1kQmZ0LZmoXXg+Y=;
b=X/HCeJp6SdIpegsENNIX5jnBFbtDSt0UzsTUaN0a3V8l4KnCb/S47gsOo5w4dI/NuL
V5etWewZyguGVw5FG6KZWbW1LS15klZZSFCTiM7xpoSJFKT0PQDSyqOStwc5XptUNDIb
qgY409tTcnSLMME5LL0QF9qUqJEJ5eul/A29A05dpYuiAE/VlwyFHs9wqNchY3n6E3tm
PvQ0AGqmCEPC4oalZvcTWwYpZWM+7HKgb3eXOP5yluvevmLCNFylOeAYk+oId8vPdONf
JOWaRweXeFZl1b7jrY0HUlayIuG7iqV2+q/o6hzKZx9BLRodDP11LPPM9cHiWEb3wN3X
4CBA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version
:content-transfer-encoding;
bh=Q9p8dp4Vwd7zb49ZfmkHjOde2lTf1kQmZ0LZmoXXg+Y=;
b=JGAzGWjuAZo8BCyJ+jFiDtGtbpEogcNiooDB8Q1/3nLH0goLK+zBDHd1O9vjLhGwy2
AMGb5hZq8/csTSRCwTLpO0XWbLb+GETMzbiW7kBz5wrUIXdMfnxkVrAemaUbPFFPp8jh
17jh5PvWtDEfBiixw6hba23owcAHs9TZ6s+6adekP+0J4Rw+hLjVuJQ1J/eIcS8Ea5T5
9pj9rHF7cZ+CvccJTgTk45Q6YVjZIVbOTZmvvRTVwNULu29Op2EPzwI9oTVQj75V+RpE
QFGIAEgayyd0hCaz93b9eC/4UjtpyX3SLjqWLNoa7OgLy2F+D3tQzZ+dzq1ljGT2bwWt
UnPA==
X-Gm-Message-State: APjAAAUx1JJ0CXUgSqw4EMqq5ZYk57Si1XVKMzl5tKnOckrzsVCbL18C
y0L1c2r4HgvumbNZx1lPlCY=
X-Google-Smtp-Source:
APXvYqyRb0wvQlmXB+gXw3/gwm+pd7UaBZTu3orpe9dFWQXE6Yy8xkJqi7BlFLmgkM9E0td9w8j+IQ==
X-Received: by 2002:a2e:9b48:: with SMTP id o8mr9572286ljj.122.1565303144838;
Thu, 08 Aug 2019 15:25:44 -0700 (PDT)
Received: from localhost.localdomain ([94.29.34.218])
by smtp.gmail.com with ESMTPSA id
g5sm19318415ljj.69.2019.08.08.15.25.43
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Thu, 08 Aug 2019 15:25:43 -0700 (PDT)
From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-mmc@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1] Revert "mmc: sdhci-tegra: drop ->get_ro() implementation"
Date: Fri, 9 Aug 2019 01:24:30 +0300
Message-Id: <20190808222430.28477-1-digetx@gmail.com>
X-Mailer: git-send-email 2.22.0
MIME-Version: 1.0
Sender: linux-mmc-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-mmc.vger.kernel.org>
X-Mailing-List: linux-mmc@vger.kernel.org
X-Virus-Scanned: ClamAV using ClamSMTP
The WRITE_PROTECT bit is always in a "protected mode" on Tegra and
WP-GPIO state need to be used instead. In a case of the GPIO absence,
write-enable should be assumed. External SD is writable once again as
a result of this patch because the offending commit changed behaviour for
the case of a missing WP-GPIO to fall back to WRITE_PROTECT bit-checking,
which is incorrect for Tegra.
Cc: stable@vger.kernel.org # v5.1+
Fixes: e8391453e27f ("mmc: sdhci-tegra: drop ->get_ro() implementation")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
drivers/mmc/host/sdhci-tegra.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index f4d4761cf20a..02d8f524bb9e 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -258,6 +258,16 @@ static void tegra210_sdhci_writew(struct sdhci_host *host, u16 val, int reg)
}
}
+static unsigned int tegra_sdhci_get_ro(struct sdhci_host *host)
+{
+ /*
+ * Write-enable shall be assumed if GPIO is missing in a board's
+ * device-tree because SDHCI's WRITE_PROTECT bit doesn't work on
+ * Tegra.
+ */
+ return mmc_gpio_get_ro(host->mmc);
+}
+
static bool tegra_sdhci_is_pad_and_regulator_valid(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -1224,6 +1234,7 @@ static const struct cqhci_host_ops sdhci_tegra_cqhci_ops = {
};
static const struct sdhci_ops tegra_sdhci_ops = {
+ .get_ro = tegra_sdhci_get_ro,
.read_w = tegra_sdhci_readw,
.write_l = tegra_sdhci_writel,
.set_clock = tegra_sdhci_set_clock,
@@ -1279,6 +1290,7 @@ static const struct sdhci_tegra_soc_data soc_data_tegra30 = {
};
static const struct sdhci_ops tegra114_sdhci_ops = {
+ .get_ro = tegra_sdhci_get_ro,
.read_w = tegra_sdhci_readw,
.write_w = tegra_sdhci_writew,
.write_l = tegra_sdhci_writel,
@@ -1332,6 +1344,7 @@ static const struct sdhci_tegra_soc_data soc_data_tegra124 = {
};
static const struct sdhci_ops tegra210_sdhci_ops = {
+ .get_ro = tegra_sdhci_get_ro,
.read_w = tegra_sdhci_readw,
.write_w = tegra210_sdhci_writew,
.write_l = tegra_sdhci_writel,
@@ -1366,6 +1379,7 @@ static const struct sdhci_tegra_soc_data soc_data_tegra210 = {
};
static const struct sdhci_ops tegra186_sdhci_ops = {
+ .get_ro = tegra_sdhci_get_ro,
.read_w = tegra_sdhci_readw,
.write_l = tegra_sdhci_writel,
.set_clock = tegra_sdhci_set_clock,

29
arm64-tegra-jetson-tx1-fixes.patch
View File

@ -1,32 +1,3 @@
From 005e0b987019fff6013dff99f44d9f6ce68f08ad Mon Sep 17 00:00:00 2001
From: Peter Robinson <pbrobinson@gmail.com>
Date: Sat, 23 Mar 2019 17:42:18 +0000
Subject: [PATCH 1/3] arm64: tegra210: Jetson TX1: disable WP to make SD card
work
There's some issue with Write Protect detection on the Jetson TX1
so just apply a quirk to disable the check for the time being.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
---
arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
index a96e6ee70c21..072788646cbf 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
@@ -1456,6 +1456,7 @@
sdhci@700b0000 {
status = "okay";
bus-width = <4>;
+ disable-wp;
cd-gpios = <&gpio TEGRA_GPIO(Z, 1) GPIO_ACTIVE_LOW>;
--
2.20.1
From aea4a7a551fd7342299d34f04a8b75f58644ac07 Mon Sep 17 00:00:00 2001
From: Peter Robinson <pbrobinson@gmail.com>
Date: Sat, 23 Mar 2019 17:45:10 +0000

2
kernel.spec
View File

@ -558,6 +558,8 @@ Patch306: arm-sdhci-esdhc-imx-fixes.patch
Patch320: arm64-tegra-jetson-tx1-fixes.patch
# https://www.spinics.net/lists/linux-tegra/msg43110.html
Patch321: arm64-tegra-Jetson-TX2-Allow-bootloader-to-configure.patch
# https://patchwork.kernel.org/patch/11084925/
Patch322: arm64-Revert-mmc-sdhci-tegra-drop---get_ro-implementation.patch
# 400 - IBM (ppc/s390x) patches