From: Duan Fugang-B38611 <B38611@freescale.com>
To: Sean Cross <xobs@kosagi.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: David Miller <davem@davemloft.net>,
"stephen@networkplumber.org" <stephen@networkplumber.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: RE: [PATCH v5] net/phy: micrel: Add OF configuration support for ksz9021
Date: Mon, 5 Aug 2013 07:41:11 +0000 [thread overview]
Message-ID: <9848F2DB572E5649BA045B288BE08FBE015EECA0@039-SN2MPN1-023.039d.mgd.msft.net> (raw)
In-Reply-To: <1375686248-17995-2-git-send-email-xobs@kosagi.com>
From: Sean Cross [mailto:xobs@kosagi.com]
Data: Monday, August 05, 2013 3:04 PM
> To: Sascha Hauer; Duan Fugang-B38611; netdev@vger.kernel.org;
> devicetree@vger.kernel.org
> Cc: David Miller; stephen@networkplumber.org; Steven Rostedt; Sean Cross
> Subject: [PATCH v5] net/phy: micrel: Add OF configuration support for
> ksz9021
>
> Some boards require custom PHY configuration, for example due to trace
> length differences. Add the ability to configure these registers in order
> to get the PHY to function on boards that need it.
>
> Because PHYs are auto-detected based on MDIO device IDs, allow PHY
> configuration to be specified in the parent Ethernet device node if no PHY
> device node is present.
>
> Signed-off-by: Sean Cross <xobs@kosagi.com>
> ---
> +static int ksz9021_load_values_from_of(struct phy_device *phydev,
> + struct device_node *of_node, u16 reg,
> + char *field1, char *field2,
> + char *field3, char *field4)
> +{
> + int val1 = -1;
> + int val2 = -2;
> + int val3 = -3;
> + int val4 = -4;
> + int newval;
> + int matches = 0;
> +
> + if (!of_property_read_u32(of_node, field1, &val1))
> + matches++;
> +
> + if (!of_property_read_u32(of_node, field2, &val2))
> + matches++;
> +
> + if (!of_property_read_u32(of_node, field3, &val3))
> + matches++;
> +
> + if (!of_property_read_u32(of_node, field4, &val4))
> + matches++;
> +
> + if (!matches)
> + return 0;
> +
> + if (matches < 4)
> + newval = kszphy_extended_read(phydev, reg);
> + else
> + newval = 0;
> +
> + if (val1 != -1)
> + newval = ((newval & 0xfff0) | ((val1/200)&0xf) << 0);
> +
> + if (val2 != -1)
> + newval = ((newval & 0xff0f) | ((val2/200)&0xf) << 4);
Must be : Newval |= ...
> +
> + if (val3 != -1)
> + newval = ((newval & 0xf0ff) | ((val3/200)&0xf) << 8);
Must be : Newval |= ...
> +
> + if (val4 != -1)
> + newval = ((newval & 0x0fff) | ((val4/200)&0xf) << 12);
Must be : Newval |= ...
> +
> + return kszphy_extended_write(phydev, reg, newval); }
next prev parent reply other threads:[~2013-08-05 7:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-05 7:04 [PATCH v5] Add OF bindings to Micrel ksz9021 PHY Sean Cross
2013-08-05 7:04 ` [PATCH v5] net/phy: micrel: Add OF configuration support for ksz9021 Sean Cross
2013-08-05 7:41 ` Duan Fugang-B38611 [this message]
2013-08-05 7:54 ` Sean Cross
2013-08-05 7:58 ` Sascha Hauer
2013-08-05 8:12 ` Sean Cross
2013-08-20 8:34 ` Sean Cross
2013-08-20 8:50 ` Duan Fugang-B38611
2013-08-20 18:35 ` David Miller
2013-08-20 9:17 ` Sascha Hauer
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