From: Simon Glass <sjg@chromium.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 5/6] x86: tsc: Correct Silvermont reference clock values
Date: Tue, 1 Aug 2017 03:11:24 -0600 [thread overview]
Message-ID: <CAPnjgZ2+SWY8+KMoApQMhEFPSLkg3O0ufiDeK8oeJwrf_O9ZEw@mail.gmail.com> (raw)
In-Reply-To: <1501038725-20850-5-git-send-email-bmeng.cn@gmail.com>
On 25 July 2017 at 21:12, Bin Meng <bmeng.cn@gmail.com> wrote:
> Atom processors use a 19.2 MHz crystal oscillator.
>
> Early processors generate 100 MHz via 19.2 MHz * 26 / 5 = 99.84 MHz.
>
> Later processors generate 100 MHz via 19.2 MHz * 125 / 24 = 100 MHz.
>
> Update the Silvermont-based tables accordingly, matching the Software
> Developers Manual.
>
> Also, correct a 166 MHz entry that should have been 116 MHz, and add
> a missing 80 MHz entry for VLV2.
>
> This keeps in sync with Linux kernel commit:
> 05680e7: x86/tsc_msr: Correct Silvermont reference clock values
>
> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> drivers/timer/tsc_timer.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
Reviewed-by: Simon Glass <sjg@chromium.org>
next prev parent reply other threads:[~2017-08-01 9:11 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-26 3:12 [U-Boot] [PATCH 1/6] x86: tsc: Read all ratio bits from MSR_PLATFORM_INFO Bin Meng
2017-07-26 3:12 ` [U-Boot] [PATCH 2/6] x86: tsc: Identify Intel-specific code Bin Meng
2017-07-26 3:16 ` Bin Meng
2017-08-01 9:11 ` Simon Glass
2017-08-01 12:21 ` Bin Meng
2017-07-26 3:12 ` [U-Boot] [PATCH 3/6] x86: tsc: Remove the fail handling in try_msr_calibrate_tsc() Bin Meng
2017-08-01 9:11 ` Simon Glass
2017-08-01 12:21 ` Bin Meng
2017-07-26 3:12 ` [U-Boot] [PATCH 4/6] x86: tsc: Update comments and expand definitions in freq_desc_tables[] Bin Meng
2017-08-01 9:11 ` Simon Glass
2017-08-01 12:21 ` Bin Meng
2017-07-26 3:12 ` [U-Boot] [PATCH 5/6] x86: tsc: Correct Silvermont reference clock values Bin Meng
2017-08-01 9:11 ` Simon Glass [this message]
2017-08-01 12:21 ` Bin Meng
2017-07-26 3:12 ` [U-Boot] [PATCH 6/6] x86: tsc: Rename try_msr_calibrate_tsc() to cpu_mhz_from_msr() Bin Meng
2017-08-01 9:11 ` Simon Glass
2017-08-01 12:22 ` Bin Meng
2017-08-01 9:10 ` [U-Boot] [PATCH 1/6] x86: tsc: Read all ratio bits from MSR_PLATFORM_INFO Simon Glass
2017-08-01 12:21 ` Bin Meng
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=CAPnjgZ2+SWY8+KMoApQMhEFPSLkg3O0ufiDeK8oeJwrf_O9ZEw@mail.gmail.com \
--to=sjg@chromium.org \
--cc=u-boot@lists.denx.de \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.