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Re: TI AM35xx support

Hello, panu.

(2013/01/12 17:41), panu.finnila%iki.fi@localhost wrote:
Hi Jeff,

Thanks for the reply. I already tried, but it seems that AM35xx is
much closer to OMA3530 than AM335x. Can't boot BEAGLEBONE kernel
on AM35xx because every single peripheral register has different

Also the AM35xx Ethernet controller is different from one that is
used at AM33xx but I hope there are some similar registers.



Jeff Rizzo writes:
 > On 1/11/13 11:47 AM, panu.finnila%iki.fi@localhost wrote:
 > > Hello all,
 > >
 > > Anyone tried NetBSD on TI AM35xx based board? I'm able to run current
 > > BEAGLEBOARD kernel with 6.0 userland without any source changes.
 > > It runs relatively well on SD card. It halts after couple of minutes
 > > running idle but it's ok for now.
 > >
 > > But the Ethernet driver is missing... To enable Ethernet controller
 > > it would need a new memory region (IPSS, 0x5C000000 - 0x5EFFFFFF) to
 > > be added into the omap2_obio driver. Is this legal?
 > >
 > > # dmesg | grep ^obio
 > > obio0 at mainbus0 base 0x48000000-0x48ffffff: On-Board IO
 > > obio1 at mainbus0 base 0x48300000-0x4833ffff: On-Board IO
 > > obio2 at mainbus0 base 0x49000000-0x490fffff: On-Board IO
 > > obio3 at mainbus0 base 0x54000000-0x547fffff: On-Board IO
 > > obio4 at mainbus0 base 0x5c000000-0x5effffff: On-Board IO
 > >
 > > I tweaked BEAGLEBONEs if_cpsw driver a little. Now it's able to
 > > correctly read the MAC address without crashing, no more:
 > >
 > > cpsw0 at obio4 addr 0x5c000000-0x5c007fff intrbase 67: TI CPSW Ethernet
 > > cpsw0: Ethernet address 00:50:c2:1e:af:fa
 > > cpsw0: no PHY found!
 > >
 > > # ifconfig cpsw0
 > > cpsw0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
 > >          address: 00:50:c2:1e:af:fa
 > >          media: Ethernet manual (none)
 > >
 > The BEAGLEBONE kernel (in -current) works on, well, the BeagleBone,
 > which has an AM355x in it.  You might want to start there...  It's
 > missing a few things (USB), but is getting there.
 > +j

 This problem might be fixed by today's commit by ozaki-r. Do you still have
the board?

Module Name:    src
Committed By:   ozaki-r
Date:           Wed Feb 26 03:58:33 UTC 2014

Modified Files:
        src/sys/arch/arm/omap: if_cpsw.c if_cpswreg.h

Log Message:
Make cpsw driver work without uboot support

On some eval boards such as BeagleBone, the cpsw device is initialized
rightly by the uboot of the boards so that the cpsw driver doesn't need
to do some initializations but works fine.

The patch adds initializations to make the driver work solely. It also
adds support for 1000BaseT (RGMII) PHY that is equipped on some boards,
e.g., CKB-3352.

Reviewed by christos@

To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/arm/omap/if_cpsw.c
cvs rdiff -u -r1.1 -r1.2 src/sys/arch/arm/omap/if_cpswreg.h

                SAITOH Masanobu (msaitoh%execsw.org@localhost

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