From: Ben Chuang <benchuanggli@gmail.com>
To: adrian.hunter@intel.com, ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
ben.chuang@genesyslogic.com.tw, renius.chen@genesyslogic.com.tw,
custos.mentis@gmail.com, Ben Chuang <benchuanggli@gmail.com>
Subject: [PATCH] mmc: sdhci-pci-gli: Fix can not access GL9750 after reboot from Windows 10
Date: Mon, 4 May 2020 14:39:57 +0800 [thread overview]
Message-ID: <20200504063957.6638-1-benchuanggli@gmail.com> (raw)
From: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Need to clear some bits in a vendor-defined register after reboot from
Windows 10.
Fixes: e51df6ce668a ("mmc: host: sdhci-pci: Add Genesys Logic GL975x support")
Reported-by: Grzegorz Kowal <custos.mentis@gmail.com>
Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
---
drivers/mmc/host/sdhci-pci-gli.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
index ce15a05f23d4..8170b659f2af 100644
--- a/drivers/mmc/host/sdhci-pci-gli.c
+++ b/drivers/mmc/host/sdhci-pci-gli.c
@@ -26,6 +26,9 @@
#define SDHCI_GLI_9750_DRIVING_2 GENMASK(27, 26)
#define GLI_9750_DRIVING_1_VALUE 0xFFF
#define GLI_9750_DRIVING_2_VALUE 0x3
+#define SDHCI_GLI_9750_SEL_1 BIT(29)
+#define SDHCI_GLI_9750_SEL_2 BIT(31)
+#define SDHCI_GLI_9750_ALL_RST (BIT(24)|BIT(25)|BIT(28)|BIT(30))
#define SDHCI_GLI_9750_PLL 0x864
#define SDHCI_GLI_9750_PLL_TX2_INV BIT(23)
@@ -122,6 +125,8 @@ static void gli_set_9750(struct sdhci_host *host)
GLI_9750_DRIVING_1_VALUE);
driving_value |= FIELD_PREP(SDHCI_GLI_9750_DRIVING_2,
GLI_9750_DRIVING_2_VALUE);
+ driving_value &= ~(SDHCI_GLI_9750_SEL_1|SDHCI_GLI_9750_SEL_2|SDHCI_GLI_9750_ALL_RST);
+ driving_value |= SDHCI_GLI_9750_SEL_2;
sdhci_writel(host, driving_value, SDHCI_GLI_9750_DRIVING);
sw_ctrl_value &= ~SDHCI_GLI_9750_SW_CTRL_4;
--
2.26.2
next reply other threads:[~2020-05-04 6:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-04 6:39 Ben Chuang [this message]
2020-05-04 7:27 ` Adrian Hunter
2020-05-05 9:15 ` Grzegorz Kowal
2020-05-05 11:32 ` Ulf Hansson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200504063957.6638-1-benchuanggli@gmail.com \
--to=benchuanggli@gmail.com \
--cc=adrian.hunter@intel.com \
--cc=ben.chuang@genesyslogic.com.tw \
--cc=custos.mentis@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=renius.chen@genesyslogic.com.tw \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®