RE: Linux on Virtex4

Rick,

Yes, I did make sure this patch was applied.

Thanks!
Tim=20

-----Original Message-----
From: Rick Moleres [mailto:rick.moleres@xilinx.com]=20
Sent: Tuesday, June 20, 2006 8:30 AM
To: Martin, Tim; linuxppc-embedded@ozlabs.org
Subject: RE: Linux on Virtex4
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Tim,
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There's also a Linux 2.4 patch provided with the ML403 PPC=20
reference design on the Xilinx website
(http://www.xilinx.com/products/boards/ml403/reference_designs
.htm) that takes care of a Virtex-4 PPC cache issue (CCR0=20
register).  Have you applied this?
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-Rick
=20
-----Original Message-----
From: linuxppc-embedded-bounces+moleres=3Dxilinx.com@ozlabs.org
[mailto:linuxppc-embedded-bounces+moleres=3Dxilinx.com@ozlabs.or
g] On Behalf Of Martin, Tim
Sent: Monday, June 19, 2006 5:24 PM
To: linuxppc-embedded@ozlabs.org
Subject: Linux on Virtex4
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I have been working with a small module made by Memec/Avnet
(FX12MM1-BASE) that has a Virtex-4 FX12 with some DDR SDRAM,=20
a Gigabit Ethernet PHY, some FLASH, etc.  I am using EDK 8.1=20
and generated the BSP for MontaVista 3.1 "preview kit" (which=20
is based on the 2.4.20 kernel).
This works, but occasionally panics while booting (doesn't=20
panic all the time, maybe 1/3 the time).  Examples of "good"=20
boot and 2 "crash" boots below.  We are using a root=20
filesystem over NFS, and the panics seem to always be after=20
the file system is mounted.  I'm not sure if it is NFS related or not.
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I have also been working with the paulus 2.6 kernel tree (and=20
I have tried the MVL linux-xilinx-26 tree), but have not been=20
able to get the kernel to boot.  The primary problem there is=20
that we are using the uartlite instead of the full uart, and=20
the patches I have found for uartlite support don't work.  I=20
can get the early serial messages to work, but I don't know=20
enough about the console and serial core to get everything=20
else working.  I am also getting panics that seem to be=20
non-serial related, but I haven't tracked it down yet.
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So two questions:
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1) Is there anything obvious from the kernel panics below=20
that I should be looking for?  Just the answer "linux 2.4.20=20
is really fricken old, upgrade" is probably the right answer.
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2) Does anyone have working UartLite support on a Virtex-4=20
FX12 design?
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------------ Examples of 2.4.20 good:
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id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:mapin_ram done
MMU:setio
MMU:exit
Linux version 2.4.20_mvl31-v4fx12 (ahamel@uhflinux) (gcc=20
version 3.3.1 (MontaVista 3.3.1-3.0.10.6
setup_arch: enter
setup_arch: bootmem
Xilinx Virtex-II Pro port (C) 2002 MontaVista Software, Inc.
(source@mvista.com)
arch: exit
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/nfs
nfsroot=3D192.168.1.1:/opt/montavista/previewkit/ppc/405/target4
Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000 Calibrating=20
delay loop... 197.01 BogoMIPS
Memory: 63268k available (1092k kernel code, 340k data, 60k init, 0k
highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)=20
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)=20
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)=20
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)=20
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)=20
POSIX conformance testing by UNIFIX
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Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039=20
Initializing RT netlink socket LSP Revision 42 ikconfig 0.5=20
with /proc/ikconfig Starting kswapd Disabling the Out Of Memory Killer
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
pty: 256 Unix98 ptys configured
xgpio #0 at 0x40020000 mapped to 0xC5000000 xgpio #1 at=20
0x40040000 mapped to 0xC5011000 xgpio #2 at 0x40060000 mapped=20
to 0xC5022000
xilinx_spi: got major number 254
xilinx_spi0 at 0x40800000 mapped to 0xC5033000, irq=3D29=20
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
XTemac: Device instance #0 found
eth0: XTemac: using fifo direct interrupt driven mode.
eth0: XTemac: PHY detected at address 4.
eth0: Xilinx TEMAC #0 at 0x80400000 mapped to 0xC5044000, irq=3D28
eth0: XTemac: id 1.0f, block id 5, type 8
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
eth0: XTemac: Options: 0xb8f0
eth0: XTemac: We renegotiated the speed to: 1000
eth0: XTemac: speed set to 1000Mb/s
Sending DHCP requests ., OK
IP-Config: Got DHCP answer from 192.168.1.1, my address is=20
192.168.1.75
IP-Config: Complete:
      device=3Deth0, addr=3D192.168.1.75, mask=3D255.255.255.0,=20
gw=3D192.168.1.1,
     host=3D192.168.1.75, domain=3D, nis-domain=3D(none),
     bootserver=3D192.168.1.1, rootserver=3D192.168.1.1, rootpath=3D
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 192.168.1.1 Looking up=20
port of RPC 100005/1 on 192.168.1.1
VFS: Mounted root (nfs filesystem).
Mounted devfs on /dev
Freeing unused kernel memory: 60k init
serial console detected.  Disabling virtual terminals.
init started:  BusyBox v0.60.2 (2004.04.30-17:49+0000)=20
multi-call binary
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Welcome to MontaVista Linux Preview Kit
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Starting system...
mounting /proc: done.
Mounting '/' read-only: done.
brining up loopback interface: done.
Mounting /tmp: done.
Starting syslogd: done.
Starting klogd: done.
Starting inetd: done.
Starting thttpd: done.
System started.
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MontaVista(R) Linux(R) Professional Edition 3.1, Preview Kit
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192.168.1.75 login:
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------ Example 1 of panic
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id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:mapin_ram done
MMU:setio
MMU:exit
Linux version 2.4.20_mvl31-v4fx12 (ahamel@uhflinux) (gcc=20
version 3.3.1 (MontaVista 3.3.1-3.0.10.6
setup_arch: enter
setup_arch: bootmem
Xilinx Virtex-II Pro port (C) 2002 MontaVista Software, Inc.
(source@mvista.com)
arch: exit
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/nfs
nfsroot=3D192.168.1.1:/opt/montavista/previewkit/ppc/405/target4
Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000 Calibrating=20
delay loop... 197.01 BogoMIPS
Memory: 63268k available (1092k kernel code, 340k data, 60k init, 0k
highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)=20
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)=20
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)=20
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)=20
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)=20
POSIX conformance testing by UNIFIX
=20
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039=20
Initializing RT netlink socket LSP Revision 42 ikconfig 0.5=20
with /proc/ikconfig Starting kswapd Disabling the Out Of Memory Killer
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
pty: 256 Unix98 ptys configured
xgpio #0 at 0x40020000 mapped to 0xC5000000 xgpio #1 at=20
0x40040000 mapped to 0xC5011000 xgpio #2 at 0x40060000 mapped=20
to 0xC5022000
xilinx_spi: got major number 254
xilinx_spi0 at 0x40800000 mapped to 0xC5033000, irq=3D29=20
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
XTemac: Device instance #0 found
eth0: XTemac: using fifo direct interrupt driven mode.
eth0: XTemac: PHY detected at address 4.
eth0: Xilinx TEMAC #0 at 0x80400000 mapped to 0xC5044000, irq=3D28
eth0: XTemac: id 1.0f, block id 5, type 8
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
eth0: XTemac: Options: 0xb8f0
eth0: XTemac: We renegotiated the speed to: 1000
eth0: XTemac: speed set to 1000Mb/s
Sending DHCP requests ., OK
IP-Config: Got DHCP answer from 192.168.1.1, my address is=20
192.168.1.75
IP-Config: Complete:
      device=3Deth0, addr=3D192.168.1.75, mask=3D255.255.255.0,=20
gw=3D192.168.1.1,
     host=3D192.168.1.75, domain=3D, nis-domain=3D(none),
     bootserver=3D192.168.1.1, rootserver=3D192.168.1.1, rootpath=3D
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 192.168.1.1 Looking up=20
port of RPC 100005/1 on 192.168.1.1
VFS: Mounted root (nfs filesystem).
Mounted devfs on /dev
Freeing unused kernel memory: 60k init
nfs: server 192.168.1.1 not responding, still trying
Oops: kernel access of bad area, sig: 11
NIP: C00F05B4 XER: 20000000 LR: C00F0C80 SP: C0131C80 REGS: c0131bd0
TRAP: 0800    Not tainted
MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DEAR: 00000045, ESR: 00000000
TASK =3D c0130020[0] 'swapper' Last syscall: 120 last math=20
00000000 last altivec 00000000
GPR00: C00CA728 C0131C80 C0130020 00000001 00001030 00000000 C02C9180
C023F9F8
GPR08: C02CA000 C0150000 00000003 00001DC7 84002022 1006E950=20
03FD0000 00000000
GPR16: 00000001 00000001 FFFFFFFF 007FFF00 00001032 00131EE0=20
00000000 C0000000
GPR24: C0151D24 C02C90D0 C0150000 00000000 C0157F00 C02E8080=20
C02C90D8 C02E8080 Call backtrace:
C00F0A4C C00CA728 C00EED30 C00C2958 C00200DC C001BD20 C001BB9C
C001B868 C0005E48 C00047CC C00274E4 C0005D80 C0005D94=20
C0002434 C01425CC C000232C Kernel panic: Aiee, killing=20
interrupt handler!
In interrupt handler - not syncing
 <0>Rebooting in 180 seconds..
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------- Example 2 of crash
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:mapin_ram done
MMU:setio
MMU:exit
Linux version 2.4.20_mvl31-v4fx12 (ahamel@uhflinux) (gcc=20
version 3.3.1 (MontaVista 3.3.1-3.0.10.6
setup_arch: enter
setup_arch: bootmem
Xilinx Virtex-II Pro port (C) 2002 MontaVista Software, Inc.
(source@mvista.com)
arch: exit
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=3D/dev/nfs
nfsroot=3D192.168.1.1:/opt/montavista/previewkit/ppc/405/target4
Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000 Calibrating=20
delay loop... 197.01 BogoMIPS
Memory: 63268k available (1092k kernel code, 340k data, 60k init, 0k
highmem)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)=20
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)=20
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)=20
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)=20
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)=20
POSIX conformance testing by UNIFIX
=20
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039=20
Initializing RT netlink socket LSP Revision 42 ikconfig 0.5=20
with /proc/ikconfig Starting kswapd Disabling the Out Of Memory Killer
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
pty: 256 Unix98 ptys configured
xgpio #0 at 0x40020000 mapped to 0xC5000000 xgpio #1 at=20
0x40040000 mapped to 0xC5011000 xgpio #2 at 0x40060000 mapped=20
to 0xC5022000
xilinx_spi: got major number 254
xilinx_spi0 at 0x40800000 mapped to 0xC5033000, irq=3D29=20
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
XTemac: Device instance #0 found
eth0: XTemac: using fifo direct interrupt driven mode.
eth0: XTemac: PHY detected at address 4.
eth0: Xilinx TEMAC #0 at 0x80400000 mapped to 0xC5044000, irq=3D28
eth0: XTemac: id 1.0f, block id 5, type 8
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
eth0: XTemac: Options: 0xb8f0
eth0: XTemac: We renegotiated the speed to: 1000
eth0: XTemac: speed set to 1000Mb/s
Sending DHCP requests ., OK
IP-Config: Got DHCP answer from 192.168.1.1, my address is=20
192.168.1.75
IP-Config: Complete:
      device=3Deth0, addr=3D192.168.1.75, mask=3D255.255.255.0,=20
gw=3D192.168.1.1,
     host=3D192.168.1.75, domain=3D, nis-domain=3D(none),
     bootserver=3D192.168.1.1, rootserver=3D192.168.1.1, rootpath=3D
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 192.168.1.1 Looking up=20
port of RPC 100005/1 on 192.168.1.1
VFS: Mounted root (nfs filesystem).
Mounted devfs on /dev
Freeing unused kernel memory: 60k init
serial console detected.  Disabling virtual terminals.
init started:  BusyBox v0.60.2 (2004.04.30-17:49+0000)=20
multi-call binary
=20
Welcome to MontaVista Linux Preview Kit
=20
Starting system...
mounting /proc: done.
Mounting '/' read-only: done.
brining up loopback interface: done.
Mounting /tmp: done.
Starting syslogd: done.
Starting klogd: done.
Starting inetd: done.
Starting thttpd: done.
System started.
Oops: Exception in kernel mode, sig: 4
NIP: C010D660 XER: 00000000 LR: C010D6F0 SP: C3EB7E60 REGS: c3eb7db0
TRAP: 0700    Not tainted
MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK =3D=20
c3eb6000[48] 'insmod' Last syscall: 90 last math 00000000=20
last altivec 00000000
GPR00: 00000001 C3EB7E60 C3EB6000 C3F06CD8 C014F524 C014DAE0 C014DB00
C014DAF8
GPR08: C014D000 C3F06C78 0000001C C014D9D8 24022222 00000000=20
300277F8 00000000
GPR16: 10001AA1 7FFFF118 00000030 C0150000 00000000 FFFFFFF4 00000002
00000002
GPR24: 00100077 00000032 00000000 00000001 C014F524 C014DAF8 C3F06CD8
C014D9D8
Call backtrace:
C002A84C C0029684 C0029BC0 C0009DE0 C000459C 3000646C=20
30007784 3000B810 3000CE68 3000C1F8 30002FE8 3000F7F0=20
30001FDC 30002434
30010904
kernel BUG at mmap.c:1304!
Oops: Exception in kernel mode, sig: 4
NIP: C002AD48 XER: 00000000 LR: C002AD48 SP: C3EB7C60 REGS: c3eb7bb0
TRAP: 0700    Not tainted
MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK =3D=20
c3eb6000[48] 'insmod' Last syscall: 90 last math 00000000=20
last altivec 00000000
GPR00: C002AD48 C3EB7C60 C3EB6000 0000001B 00001030 00000001 00000F14
C0139D93
GPR08: 00000000 00000000 00000034 C3EB7B70 C0150000 00000000=20
300277F8 00000000
GPR16: 10001AA1 7FFFF118 00000030 C0150000 00009032 03EB7DA0 00000000
C00047D4
GPR24: C0004BC4 C0150000 C0150000 00000000 00001000 7FFFF000=20
C014F520 00000000 Call backtrace:
C002AD48 C0014684 C0019EE8 C000497C C00049EC C00047D4 C002A84C
C0029684 C0029BC0 C0009DE0 C000459C
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