From: "ernest.zhang" <ernest.zhang@bayhubtech.com>
To: Adrian Hunter <adrian.hunter@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: ernest.zhang@bayhubtech.com, chuanjin.pang@bayhubtech.com,
mike.li@bayhubtech.com, chevron.li@bayhubtech.com,
shirley.her@bayhubtech.com, xiaoguang.yu@bayhubtech.com,
bobby.wu@bayhubtech.com
Subject: [PATCH V7 2/5] mmc: sdhci: Change O2 Host HS200 mode clock frequency to 200MHz
Date: Mon, 16 Jul 2018 14:26:52 +0800 [thread overview]
Message-ID: <20180716062655.24703-2-ernest.zhang@bayhubtech.com> (raw)
In-Reply-To: <20180716062655.24703-1-ernest.zhang@bayhubtech.com>
O2 SD Host HS200 mode clock frequency current is 208MHz, should be changed
to 200MHz to meet specification.
Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com>
---
Change in V7:
Change HS200 mode clock frequency from 208MHz to 200MHz to meet
Specification.
Change in V1~V6:
N/A
---
drivers/mmc/host/sdhci-pci-o2micro.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
index ba59db6a126c..94cf3cd75dd3 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -311,7 +311,7 @@ int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip)
/* Check Whether subId is 0x11 or 0x12 */
if ((scratch_32 == 0x11) || (scratch_32 == 0x12)) {
- scratch_32 = 0x2c280000;
+ scratch_32 = 0x25100000;
/* Set Base Clock to 208MZ */
o2_pci_set_baseclk(chip, scratch_32);
@@ -406,7 +406,7 @@ int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip)
O2_SD_PLL_SETTING, scratch_32);
} else {
scratch_32 &= 0x0000FFFF;
- scratch_32 |= 0x2c280000;
+ scratch_32 |= 0x25100000;
pci_write_config_dword(chip->pdev,
O2_SD_PLL_SETTING, scratch_32);
--
2.17.1
next prev parent reply other threads:[~2018-07-16 6:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-16 6:26 [PATCH V7 1/5] mmc: sdhci: Add support for O2 eMMC HS200 mode ernest.zhang
2018-07-16 6:26 ` ernest.zhang [this message]
2018-07-25 7:45 ` [PATCH V7 2/5] mmc: sdhci: Change O2 Host HS200 mode clock frequency to 200MHz Adrian Hunter
2018-07-27 6:49 ` Ernest Zhang(WH)
2018-07-27 6:58 ` Adrian Hunter
2018-07-16 6:26 ` [PATCH V7 3/5] mmc: sdhci: Export sdhci tuning function symbol ernest.zhang
2018-07-25 7:46 ` Adrian Hunter
2018-07-16 6:26 ` [PATCH V7 4/5] mmc: sdhci: Add support for O2 hardware tuning ernest.zhang
2018-07-25 7:48 ` Adrian Hunter
2018-07-16 6:26 ` [PATCH V7 5/5] mmc: sdhci: Add MSI interrupt support for O2 SD host ernest.zhang
2018-07-25 7:48 ` Adrian Hunter
2018-07-25 7:44 ` [PATCH V7 1/5] mmc: sdhci: Add support for O2 eMMC HS200 mode Adrian Hunter
2018-07-30 15:05 ` 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=20180716062655.24703-2-ernest.zhang@bayhubtech.com \
--to=ernest.zhang@bayhubtech.com \
--cc=adrian.hunter@intel.com \
--cc=bobby.wu@bayhubtech.com \
--cc=chevron.li@bayhubtech.com \
--cc=chuanjin.pang@bayhubtech.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=mike.li@bayhubtech.com \
--cc=shirley.her@bayhubtech.com \
--cc=ulf.hansson@linaro.org \
--cc=xiaoguang.yu@bayhubtech.com \
/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;
as well as URLs for NNTP newsgroup(s).