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From: rockford@yandex.ru (Панов Андрей)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: i.MX6Q: Add fixup for RTL8211E Gigabit Ethernet PHY
Date: Wed, 04 Mar 2015 22:08:42 +0300	[thread overview]
Message-ID: <4686121425496122@web26g.yandex.ru> (raw)
In-Reply-To: <3988965.hS0GXm2TNL@wuerfel>

Hello!

04.03.2015, 02:29, "Arnd Bergmann" <arnd@arndb.de>:
> On Tuesday 03 March 2015 20:42:59 Andrey Panov wrote:
>> ?+static int rtl8211e_phy_fixup(struct phy_device *dev)
>> ?+{
>> ?+ ??????phy_write(dev, 0x00, 0x3140);
>> ?+ ??????mdelay(10);
>> ?+ ??????phy_write(dev, 0x00, 0x3340);
>> ?+ ??????mdelay(10);
>> ?+
>> ?+ ??????return 0;
>> ?+}
>
> mdelay(10) is rather evil, can you use msleep(10) here instead?

Yes

>> ?+ ??????????????phy_register_fixup_for_uid(PHY_ID_RTL8211E, 0xffffffff,
>> ?+ ??????????????????????????????rtl8211e_phy_fixup);
>
> How do you ensure that this fixup is only applied on the boards that need
> it, rather than all machines that happen to have this phy?

I've thought that if there no other fixups in code here checking a particular 
board where they run, this isn't necessary.
This SoC has only one ethernet MAC and if it is connected to this PHY, 
it should be initalized this way independently of board, like other code here does, I think.

This code just does forcibly restart autonegotiation.
I can wrap it in if(!of_machine_is_compatible(...)){}, if it is need.

And I see, mask is wrong - I should use 0x001fffff.

I'll resend a patch, thanks.

--
 ??????

  reply	other threads:[~2015-03-04 19:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-03 17:42 [PATCH] ARM: i.MX6Q: Add fixup for RTL8211E Gigabit Ethernet PHY Andrey Panov
2015-03-03 23:29 ` Arnd Bergmann
2015-03-04 19:08   ` Панов Андрей [this message]
2015-03-04 19:44     ` Arnd Bergmann
2015-03-04 20:05       ` Панов Андрей
2015-03-04 20:18         ` Fabio Estevam
2015-03-04 20:32           ` Панов Андрей
2015-03-04 21:31             ` Arnd Bergmann
2015-03-05  6:40               ` Панов Андрей
     [not found] <1424892206-18679-1-git-send-email-rockford@yandex.ru>
2015-02-25 19:34 ` Marc Kleine-Budde
2015-03-03  2:57   ` Shawn Guo

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