[PATCH 03/10] net/fec: add mac field into platform data and consolidate fec_get_mac
Shawn Guo
shawn.guo at freescale.com
Wed Dec 29 05:30:15 EST 2010
Sorry, Baruch. I missed two comments in the last reply.
On Wed, Dec 29, 2010 at 08:53:30AM +0200, Baruch Siach wrote:
> Hi Shawn,
>
> Please add netdev at vger.kernel.org to the Cc of all your fec driver patches.
>
I was aware of this after I sent out the patch set last night.
Can I just resend all the patches in v2 and get netdev at vger.kernel.org
included?
> On Tue, Dec 28, 2010 at 10:55:48PM +0800, Shawn Guo wrote:
[...]
> > + /*
> > + * try to get mac address in following order:
> > + *
> > + * 1) kernel command line fec_mac=xx:xx:xx...
> > + */
> > + iap = fec_mac_default;
> > +
> > + /*
> > + * 2) from flash or fuse (via platform data)
> > + */
>
> Again, how do you handle the dual MAC case?
>
For the platform data case, the following patch reads both mac
addresses.
[PATCH 09/10] ARM: mx28: read fec mac address from ocotp
+static int __init mx28evk_fec_get_mac(void)
+{
+ int i, ret;
+ u32 val;
+
+ /*
+ * OCOTP only stores the last 4 octets for each mac address,
+ * so hard-coding the first two octets as Freescale OUI (00:04:9f)
+ * is needed.
+ */
+ for (i = 0; i < 2; i++) {
+ ret = mxs_read_ocotp(0x20 + i * 0x10, 1, &val);
+ if (ret)
+ goto error;
+
+ mx28_fec_pdata[i].mac[0] = 0x00;
+ mx28_fec_pdata[i].mac[1] = 0x04;
+ mx28_fec_pdata[i].mac[2] = (val >> 24) & 0xff;
+ mx28_fec_pdata[i].mac[3] = (val >> 16) & 0xff;
+ mx28_fec_pdata[i].mac[4] = (val >> 8) & 0xff;
+ mx28_fec_pdata[i].mac[5] = (val >> 0) & 0xff;
+ }
+
+ return 0;
+
+error:
+ pr_err("%s: timeout when reading fec mac from OCOTP\n", __func__);
+ return -ETIMEDOUT;
+}
+
--
Regards,
Shawn
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