[ECOS] RedBoot

Anthony Massa amassa@san.rr.com
Wed Dec 27 16:49:00 GMT 2000


I was able to change the MAC address (using fconfig).  I am able to do ping
from Win NT host and get back packets.  I cannot run using BOOTP, I must use
a static IP address.

However, I still am not able to run the telnet application and connect to
the MBX board.  Do you know what is the problem there?

Do I need to run a BOOTP server from my host?

Should I try a tftp server application?



>
> As I expected, the problem is that RedBoot/eCos can't get at the NVRAM
> information.  This is because the NVRAM is connected via the I2C interface
> and that is broken on the MBX!  I've not been able to figure out how to
> make it work reliably.
>
> However, the attached patch should let you get by.  It adds some
> additional
> information kept by RedBoot.  Basically, run 'fconfig' and enter the ESA
> (MAC) address manually.  Then RedBoot and eCos programs will be
> able to set
> up the interface properly.
>
> Let me know if this works/helps/...  If so, I'll apply it permanently.
>
> On 27-Dec-2000 Anthony Massa wrote:
> > Here is the dump after applying the patch you sent.
> >
> > RedBoot(tm) debug environment - built 11:31:22, Dec 27 2000
> > Platform: Motorola MBX (PowerPC 860)
> > Copyright (C) 2000, Red Hat, Inc.
> >
> > RAM: 0x00000000-0x00400000
> > FLASH: 0xfe000000 - 0xfe080000, 8 blocks of 0x00010000 bytes each.
> > VP: 83A4, EP: 84A4, Code: 8
> > 000083A4: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 000083B4: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 000083C4: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 000083D4: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 000083E4: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 000083F4: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008404: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008414: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008424: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008434: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008444: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008454: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008464: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008474: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008484: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > 00008494: FFFF FFFF FFFF FFFF  FFFF FFFF FFFF FFFF   |................|
> > IP: 192.168.0.5, Default server: 192.168.0.3
> > RedBoot> Ethernet recv:
> > 0x0000AA2C: FFFF FFFF FFFF 0060  975B 43B8 0064
> |.......`.[C..d  |
> > 0x0000AA3A: E0E0 03FF FF00 6000  0400 0000 00FF FFFF
> |......`.........|
> > 0x0000AA4A: FFFF FF04 5200 0000  0000 6097 5B43 B804
> |....R.....`.[C..|
> > 0x0000AA5A: 5200 0206 404D 4143  4849 4E45 3254 4F57
> |R...@MACHINE2TOW|
> > 0x0000AA6A: 4552 0000 0000 0000  0000 0000 0000 0000
> |ER..............|
> > 0x0000AA7A: 0000 0000 0000 0000  0000 0000 0000 0000
> |................|
> > 0x0000AA8A: 0000 0000 0000 0000  0000 6097 5B43 B8E8
> |..........`.[C..|
> > 0x0000AA9A: 8500 0100 EDBD 813C
> >
> >
> >>
> >>
> >> On 27-Dec-2000 Anthony Massa wrote:
> >> > That's odd since I can see the correct MAC address from the
> >> EPPCbug code.
> >>
> ^^^^^^^^^^^^
> >> But not from eCos/RedBoot, that's where the problem lies.
> >>
> >> >
> >> > I did build this redboot image.  What do I need to do - any
> >> help would be
> >> > great...
> >>
> >> Try this patch and let me know what the output is.  This will
> print some
> >> additional information at the point where the driver is trying
> to find the
> >> address information.
> >>
> >> Index: hal/powerpc/mbx/current/src/hal_aux.c
> >> ===================================================================
> >> RCS file: /home/cvs/ecc/ecc/hal/powerpc/mbx/current/src/hal_aux.c,v
> >> retrieving revision 1.11
> >> diff -u -5 -p -r1.11 hal_aux.c
> >> --- hal/powerpc/mbx/current/src/hal_aux.c       2000/06/15
> >> 14:31:01     1.11
> >> +++ hal/powerpc/mbx/current/src/hal_aux.c       2000/12/27 19:10:35
> >> @@ -281,10 +281,12 @@ _mbx_fetch_VPD(int code, unsigned char *
> >>      int i, len;
> >>
> >>      _mbx_init_i2c();  // Fetch the data if not already
> >>      vp = &_MBX_eeprom_data[0];
> >>      ep = &_MBX_eeprom_data[sizeof(_MBX_eeprom_data)];
> >> +    diag_printf("VP: %x, EP: %x, Code: %x\n", vp, ep, code);
> >> +    diag_dump_buf(vp, 256);
> >>      while (vp < ep) {
> >>          if (*vp == (unsigned char)code) {
> >>              // Found the desired item
> >>              len = (int)vp[1];
> >>              if (len > size) len = size;
> >>
> >> >
> >> >>
> >> >> The problem seems to be that the driver in RedBoot (eCos)
> >> can't get at the
> >> >> ESA for your board.  It is supposed to do this by accessing
> >> some NVRAM on
> >> >> the board and then digging it out of a data structure kept by
> >> EPPCbug.  If
> >> >> eCos can't find the address, it falls back to a hard coded
> one which is
> >> >>   0x08 0x00 0x3E 0x28 0x79 0xB8
> >> >>
> >> >> Did you build this RedBoot?  Can you?  If so, perhaps we
> can debug the
> >> >> NVRAM code and figure out why it works for me but not for you.
> >> >>
> >> >> On 23-Dec-2000 Anthony Massa wrote:
> >> >> > Gary - thanks for the offer, sorry I took this long to respond,
> >> >> but this is
> >> >> > the first chance at running something on my hardware
> >> platform.  I have
> >> >> > attached two different dumps.  The first one is with BOOTP
> >> enabled.  The
> >> >> > second is with a static IP address of 192.168.0.5.  I also did
> >> >> a "ping" from
> >> >> > my Windows NT workstation which received a reply from my MBX
> >> >> board.  That is
> >> >> > shown in the second dump as well.
> >> >> >
> >> >> > Any help you can give would be greatly appreciated.
> >> >> >
> >> >> > When I do a NIOT command under eppcbug I get the following
> >> information
> >> >> > Controller LUN: 20
> >> >> > Device LUN: 00
> >> >> > Address: FA200A00
> >> >> > P-Address: 192.168.0.5
> >> >> > H-Address: 08 00 3E 27 5A DC
> >> >> >
> >> >> > ============================
> >> >> > START OF FIRST DUMP - WITH BOOTP ENABLED
> >> >> >
> >> >> > RedBoot(tm) debug environment - built 09:50:42, Dec 17 2000
> >> >> > Platform: Motorola MBX (PowerPC 860)
> >> >> > Copyright (C) 2000, Red Hat, Inc.
> >> >> >
> >> >> > RAM: 0x00000000-0x00400000
> >> >> > FLASH: 0xfe000000 - 0xfe080000, 8 blocks of 0x00010000 bytes each.
> >> >> > Ethernet send:
> >> >> > 0x00004A44: FFFF FFFF FFFF 0800  3E28 79B8 0800
> >> >> |........>(y...  |
> >> >>                              ^^^^^^^^^^^^^^^
> >> >> This is the ESA, but not the correct one for your board.  This
> >> is why the
> >> >> BOOTP setup does not work.
> >> >>
> >>
>



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