From: baruch@tkos.co.il (Baruch Siach)
To: linux-arm-kernel@lists.infradead.org
Subject: Q about driver code for KSZ8873MML
Date: Fri, 12 Sep 2014 07:07:44 +0300 [thread overview]
Message-ID: <20140912040744.GD2522@tarshish> (raw)
In-Reply-To: <CAH=J7GMQMGhEgiGQiXru1P4zdZjemFwwWrUjhRWBN+jS-qsF=Q@mail.gmail.com>
Hi Patrick,
On Thu, Sep 11, 2014 at 10:40:29PM -0400, Patrick Boyle wrote:
> In the linux/include/micrel_phy.h file the PHY ID for the KSZ8873MML
> is defined as (0x000e7237)
>
> #define MICREL_PHY_ID_MASK 0x00fffff0
>
> #define PHY_ID_KSZ8873MLL 0x000e7237
> #define PHY_ID_KSZ9021 0x00221610
> #define PHY_ID_KSZ8737 0x00221720
> /* same id: KS8021, KS8031 */
> #define PHY_ID_KSZ8021 0x00221555
> #define PHY_ID_KSZ8041 0x00221510
> #define PHY_ID_KSZ8051 0x00221550
> /* same id: ks8001 Rev. A/B, and ks8721 Rev 3. */
> #define PHY_ID_KSZ8001 0x0022161A
> /* same id: KS8081, KS8091 */
> #define PHY_ID_KSZ8081 0x00221560
> #define PHY_ID_KSZ8061 0x00221570
> #define PHY_ID_KSZ9031 0x00221620
>
> /* struct phy_device dev_flags definitions */
> #define MICREL_PHY_50MHZ_CLK 0x00000001
>
> But the datasheet from Micrel for this part (and using mii to probe
> the part on my board) shows:
>
> 0x00221430
>
> So where did 0x000e7237 come from?
git has a wonderful tool called 'git blame'. This tool indicates that the
#define PHY_ID_KSZ8873MLL 0x000e7237
line comes from commit 93272e07d8539c
(http://git.kernel.org/linus/93272e07d8539c) by Jean-Christophe
PLAGNIOL-VILLARD (added to Cc).
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
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- baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
next prev parent reply other threads:[~2014-09-12 4:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-12 2:40 Q about driver code for KSZ8873MML Patrick Boyle
2014-09-12 4:07 ` Baruch Siach [this message]
2014-09-12 4:29 ` Florian Fainelli
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