linux-mmc.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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

  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).