[U-Boot-Users] Using U-BOOT in CSB272 board
Lonsn
lonsn2000 at yahoo.com.cn
Wed Sep 8 16:23:20 CEST 2004
I'm sorry if I posted where is not the exact place, but it seems
linuxppc_embedded maillist doesn't
work.
my Linux kernel 2.4.18 panic at init EPSON1356 Display Controller
I'm using Cogent CSB272(based on IBM 405GP) board, and the OS is
montavisa 3.0, kernel 2.4.18,
bootloader is U-BOOT 1.1.1.
When the board power on, In U-BOOT shell, the first time I download
kernel to SDRAM(64MB),
then bootm, kernel panic at init EPSON1356 Display Controller, so I
reset U-BOOT, I download kernel again
and at the same address(0x200000),this time, boot linux ok. Why???
When I disabled framebuffer support in kernel, then every time booting
linux is ok.
I used another bootloader uMon and enabled framebuffer support in
kernel,every time booting linux is ok.
I have changed bd_t struct in kernel, then it is the same as in U-BOOT,
undefined CFG_CLK_Mhz,
I compiled U-BOOT with csb272_config.
Should I pay attention to SDRAM init sequence in U-BOOT as Wolfgang has
said many times?
I didn't change anything about sdram_init in init.S
Isn't it enough to do the sdram_init in init.S?
Any suggestions would be appreciated.
the following is my boot information:(the first time and the second time)
----------------------------------------------------------------------------
U-Boot 1.1.1 (Sep 6 2004 - 11:32:49)
CPU: IBM PowerPC 405GP Rev. E at 198 MHz (PLB=66, OPB=16, EBC=33 MHz)
PCI sync clock at 33 MHz, internal PCI arbiter enabled
16 kB I-Cache 8 kB D-Cache
BOARD: Cogent CSB272
I2C: ready
DRAM: 64 MB
FLASH: erase_region_count = 128 erase_region_size = 131072
32 MB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
BEDBUG:ready
u-boot=> tftp 200000 zImage_liao_lcd.bin
ENET Speed is 100 Mbps - HALF duplex connection
TFTP from server 10.96.10.215; our IP address is 10.96.10.216
Filename 'zImage_liao_lcd.bin'.
Load address: 0x200000
Loading: *#################################################################
#################################################################
####
done
Bytes transferred = 682770 (a6b12 hex)
u-boot=> bootm 200000
## Booting image at 00200000 ...
Image Name: Linux kernel Image
Created: 2004-09-08 3:34:24 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 682706 Bytes = 666.7 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
hello,first run ppc4xx kernel cpu freq= 198000000 kernel bus freq=
66000000plb freq=66000000flash start=-33554432Linux version
2.4.18_mvl30-walnut (root at Redhat) (gcc version 3.2.1 20020930
(MontaVista)) #2 Wed Sep 8 11:28:08 CST 2004
CSB272 (IBM405GP) Platform
Port by MontaVista Software, Inc. (source at mvista.com)
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: console=ttyS0,38400 root=/dev/nfs rw
nfsroot=10.96.10.215:/home/mvkit/ppc405/target
ip=10.96.10.216:10.96.10.215:10.96.10.254:255.255.255.0:red::off panic=1;
Console: colour dummy device 80x25
Calibrating delay loop... 197.83 BogoMIPS
Memory: 62836k available (1132k kernel code, 416k data, 100k init, 0k
highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
OCP uart ver 1.2 init complete
Starting kswapd
Disabling the Out Of Memory Killer
i2c-core.o: i2c core module version 2.6.2 (20011118)
i2c-dev.o: i2c /dev entries driver module version 2.6.2 (20011118)
i2c-proc.o version 2.6.2 (20011118)
Found EPSON1356 Display Controller
e1356/806fb: Detected 2097KB framebuffer
e1356fb: clocks (kHz): busclk=33000 mclk=33000 clki=25175 clki2=25175
e1356fb: reserving 1024 bytes for the hwcursor at c540dc00
Machine check in kernel mode.
Caused by (from SRR1=9030): Transfer error ack signal
Oops: machine check, sig: 7
NIP: C00B7164 XER: 00000000 LR: C00B7130 SP: C02F3D40 REGS: c02f3c80
TRAP: 0200 Not tainted
MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c02f2000[1] 'swapper' Last syscall: 120
last math 00000000 last altivec 00000000
PLB0: bear= 0x0080f8b0 acr= 0x00000000 besr= 0x00000000
PLB0 to OPB: bear= 0x01006200 besr0= 0x00000000 besr1= 0x00000000
GPR00: 00000000 C02F3D40 C02F2000 C02F3DA8 C0197920 00000000 C0198DC4
000FFE00
GPR08: 00000000 C520E002 001FFBFE C520E004 00000008 00000000 C500D014
000001DF
GPR16: 0000002C 0000000A 00000002 00000013 00000001 0000000B 00000003
C500D040
GPR24: 00000001 C500D032 C0197920 FFFFFFFF C02F3DA8 C0197920 00001388
C500D100
Call backtrace:
C00B7130 C00B7E4C C015FA78 C015E52C C015833C C0151810 C015185C
C00026FC C0004F0C
Kernel panic: Attempted to kill init!
<0>Rebooting in 1 seconds..<NULL>
U-Boot 1.1.1 (Sep 6 2004 - 11:32:49)
CPU: IBM PowerPC 405GP Rev. E at 198 MHz (PLB=66, OPB=16, EBC=33 MHz)
PCI sync clock at 33 MHz, internal PCI arbiter enabled
16 kB I-Cache 8 kB D-Cache
BOARD: Cogent CSB272
I2C: ready
DRAM: 64 MB
FLASH: erase_region_count = 128 erase_region_size = 131072
32 MB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
BEDBUG:ready
u-boot=> tftp 200000 zImage_liao_bin_lcd.bin
ENET Speed is 100 Mbps - HALF duplex connection
TFTP from server 10.96.10.215; our IP address is 10.96.10.216
Filename 'zImage_liao_lcd.bin'.
Load address: 0x200000
Loading: *#################################################################
#################################################################
####
done
Bytes transferred = 682770 (a6b12 hex)
u-boot=> bootm 200000
## Booting image at 00200000 ...
Image Name: Linux kernel Image
Created: 2004-09-08 3:34:24 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 682706 Bytes = 666.7 kB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
hello,first run ppc4xx kernel cpu freq= 198000000 kernel bus freq=
66000000plb freq=66000000flash start=-33554432Linux version
2.4.18_mvl30-walnut (root at Redhat) (gcc version 3.2.1 20020930
(MontaVista)) #2 Wed Sep 8 11:28:08 CST 2004
CSB272 (IBM405GP) Platform
Port by MontaVista Software, Inc. (source at mvista.com)
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: console=ttyS0,38400 root=/dev/nfs rw
nfsroot=10.96.10.215:/home/mvkit/ppc405/target
ip=10.96.10.216:10.96.10.215:10.96.10.254:255.255.255.0:red::off panic=1;
Console: colour dummy device 80x25
Calibrating delay loop... 197.83 BogoMIPS
Memory: 62836k available (1132k kernel code, 416k data, 100k init, 0k
highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
OCP uart ver 1.2 init complete
Starting kswapd
Disabling the Out Of Memory Killer
i2c-core.o: i2c core module version 2.6.2 (20011118)
i2c-dev.o: i2c /dev entries driver module version 2.6.2 (20011118)
i2c-proc.o version 2.6.2 (20011118)
Found EPSON1356 Display Controller
e1356/806fb: Detected 2097KB framebuffer
e1356fb: clocks (kHz): busclk=33000 mclk=33000 clki=25175 clki2=25175
e1356fb: reserving 1024 bytes for the hwcursor at c540dc00
Console: switching to colour frame buffer device 80x30
fb0: Epson SED1356 frame buffer device
initialize_kbd: Keyboard reset failed, no ACK
Detected PS/2 Mouse Port.
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at 0xef600300 (irq = 0) is a 16550A
ttyS01 at 0xef600400 (irq = 1) is a 16550A
IBM gpio driver version 02.01.21.d
GPIO #0 at 0xef600700
PPC 405 watchdog driver v0.5
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
eth0: Phy @ 0x0, type LXT971A (0x001378e2)
Reset ethernet interfaces
IBM On-chip iic (i2c) algorithm module 2002.30.04
iic_ibmocp_init: IBM on-chip iic adapter module
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
opening eth0 on emac 0
eth0: IBM EMAC: link up, 100 Mbps Half Duplex, auto-negotiation complete.
eth0: IBM EMAC: MAC 00:0b:db:65:36:1f.
eth0: IBM EMAC: open completed
IP-Config: Complete:
device=eth0, addr=10.96.10.216, mask=255.255.255.0, gw=10.96.10.254,
host=red, domain=, nis-domain=(none),
bootserver=10.96.10.215, rootserver=10.96.10.215, rootpath=
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 10.96.10.215
Looking up port of RPC 100005/1 on 10.96.10.215
VoFkS: Mounted roournel memory: 100k init
INIT: version 2.78 booting
Activating swap...
Checking all file systems...
Parallelizing fsck version 1.22 (22-Jun-2001)
Calculating module dependencies... done.
Loading modules:
mkdir: cannot create directory `/dev/pts': File exists
Mounting local filesystems...
nothing was mounted
Cleaning: /etc/network/ifstate.
Setting up IP spoofing protection: rp_filter.
Disable TCP/IP Explicit Congestion Notification: done.
Configuring network interfaces: done.
Starting portmap daemon: portmap.
Cleaning: /tmp /var/lock /var/run.
INIT: Entering runlevel: 3
Starting system log daemon: syslogd klogd.
Starting internet superserver: inetd.
MontaVista Linux 3.0, Professional Edition
red login: root
Last login: Thu Jan 1 00:00:25 1970 on console
Linux red 2.4.18_mvl30-walnut #2 Wed Sep 8 11:28:08 CST 2004 ppc unknown
Welcome to MontaVista Linux 3.0, Professional Edition
root at red:~#
Initialization
SDRAMs must be powered up and initialized in a
predefined manner. Operational procedures other than
those specified may result in undefined operation. Once
power is applied to VDD and VDDQ (simultaneously) and
the clock is stable (stable clock is defined as a signal
cycling within timing constraints specified for the clock
pin), the SDRAM requires a 100μs delay prior to issuing
any command other than a COMMAND INHIBIT or NOP.
Starting at some point during this 100μs period and continuing
at least through the end of this period, COMMAND
INHIBIT or NOP commands should be applied.
Once the 100μs delay has been satisfied with at least
one COMMAND INHIBIT or NOP command having been
applied, a PRECHARGE command should be applied. All
banks must then be precharged, thereby placing the
device in the all banks idle state.
Once in the idle state, two AUTO REFRESH cycles
must be performed. After the AUTO REFRESH cycles are
complete, the SDRAM is ready for mode register programming.
Because the mode register will power up in an
unknown state, it should be loaded prior to applying any
operational command.
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