Hi Kris,
Microbit_P43000 wrote:
Hi all,
I'm new to this list and (uC)linux overall.
However, with some persistence (and great interest in uClinux :-) I got the
uCLinux-dist
(20080808) ported and running smoothly on the Olimex SAM9-L9260 board
(similar to Atmel AT91SAM9260-EK).
I don't know yet how to go about patches or implementing something so my effort
can be
incorporated into future versions.
The best place to start is to read the documentation in
linux-2.6.x/Documentation/SubmittingPatches
Regards
Greg
I expanded the Kernel config so you can select the
board there.
I should enunciate that I'm not posting to cop out on a problem, on the
contrary, I want
to learn as much as possible about (uC)linux under the bonnet :-)
My actual question is about the start up and init :
The original included Linux has root file image that goes into the 512 MB Flash.
There are/were a few bizarre "error" messages on booting that I can't get rid
of. Since I
now run a completely different kernel and these messages stay, they must result
from some
file or script somewhere on the JFFS root image.
I have spent days on scouring through all the init.d scripts and what have you,
and I
still can't find the source of these pests....
Is there anyone here that could help me, or maybe even someone that uses
AT91SAM9 ?
The most bizarre message on boot I get is :
Checking root file system...fsck 1.40-WIP (14-Nov-2006)
fsck: fsck.jffs2: not found
fsck: Error 2 while executing fsck.jffs2 for /dev/mtdblock1
done.
<<<<<<<<<<
I can't find for the life of me where it is invoked.
I also can't figure out how to stop these occasional messages :
JFFS2 notice: (863) check_node_data: wrong data CRC in data node at 0x149fed7c:
read.....
{although I've set the "noise" level in the kernel config to 0 (debug) for
JFFS2,
this starts after I have modified file/files on the JFFS2 image}.
Lastly, is there anyone that can give a push in the right direction how to turn
off this
time consuming Flash check after init boot, resulting in the " Empty flash at
0x0c89630c
ends at 0x0c896800"and the likes. These are before the "init freed" log.
I include a recent boot log for reference if anyone can give a hint :
RomBOOT
AT91Bootstrap loading from 0x8400...
U-Boot 1.3.4-00001-g8ed2f5f-dirty (Aug 20 2008 - 18:26:55)
DRAM: 64 MB
NAND: 512 MiB
DataFlash:AT45DB161
Nb pages: 4096
Page Size: 528
Size= 2162688 bytes
Logical address: 0xD0000000
Area 0: D0000000 to D00041FF (RO) Bootstrap
Area 1: D0004200 to D00083FF Environment
Area 2: D0008400 to D0041FFF (RO) U-Boot
Area 3: D0042000 to D0251FFF Kernel
Area 4: D0252000 to D020FFFF FS
In: serial
Out: serial
Err: serial
Net: macb0
macb0: link up, 100Mbps full-duplex (lpa: 0x45e1)
Hit any key to stop autoboot: 3 2 1 0
## Booting kernel from Legacy Image at 22200000 ...
Image Name: Linux-2.6.25-uc0-my_uClinux
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1486708 Bytes = 1.4 MB
Load Address: 20008000
Entry Point: 20008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing
Linux.....................................................................................
............ done, booting the kernel.
Linux version 2.6.25-uc0-my_uClinux (k...@ubuntu) (gcc version 4.2.3 (Sourcery
G++ Lite
2008q1-126)) #12 Tue Jun 30 04:14:19 BST 2009
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
Machine: Olimex SAM9-L9260
Memory policy: ECC disabled, Data cache writeback
Clocks: CPU 180 MHz, master 90 MHz, main 18.432 MHz
CPU0: D VIVT write-back cache
CPU0: I cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets
CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
Kernel command line: mem=64M console=ttyS0,115200 root=/dev/mtdblock1 rw
rootfstype=jffs2
AT91: 96 gpio irqs in 3 banks
PID hash table entries: 256 (order: 8, 1024 bytes)
Console: colour dummy device 80x30
console [ttyS0] enabled
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 61824KB available (2760K code, 210K data, 104K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 152 bytes
NET: Registered protocol family 16
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NetWinder Floating Point Emulator V0.97 (double precision)
audit: initializing netlink socket (disabled)
type=2000 audit(0.530:1): initialized
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL
atmel_usart.1: ttyS1 at MMIO 0xfffb0000 (irq = 6) is a ATMEL_SERIAL
atmel_usart.2: ttyS2 at MMIO 0xfffb4000 (irq = 7) is a ATMEL_SERIAL
brd: module loaded
loop: module loaded
MACB_mii_bus: probed
eth0: Atmel MACB at 0xfffc4000 irq 21 (00:00:00:00:00:00)
eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=ffffffff:01, irq=-1)
Driver 'sd' needs updating - please use bus_type methods
block2mtd: version $Revision: 1.30 $
NAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB 3,3V
8-bit)
Scanning device for bad blocks
Bad eraseblock 384 at 0x03000000
Creating 2 MTD partitions on "NAND 512MiB 3,3V 8-bit":
0x00000000-0x00400000 : "Bootloader Area"
0x00400000-0x20000000 : "User Area"
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 1
at91_ohci at91_ohci: irq 20, io mem 0x00500000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver libusual
Registered led device: led_stat
Registered led device: led_pwr
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
Empty flash at 0x0c89630c ends at 0x0c896800
Empty flash at 0x0e89b43c ends at 0x0e89b800
Empty flash at 0x18ab325c ends at 0x18ab3800
Empty flash at 0x1affaad4 ends at 0x1affb000
Empty flash at 0x1ca8b140 ends at 0x1ca8b800
VFS: Mounted root (jffs2 filesystem).
Freeing init memory: 104K
INIT: version 2.86 booting Starting the hotplug events dispatcher: udevd.
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...done.
Activating swap...done.
Checking root file system...fsck 1.40-WIP (14-Nov-2006)
fsck: fsck.jffs2: not found
fsck: Error 2 while executing fsck.jffs2 for /dev/mtdblock1
done.
FATAL: Module rtc_dev not found.
Setting the system clock..
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
Cleaning up ifupdown....
Loading kernel modules...done.
Loading device-mapper support.
Checking file systems...fsck 1.40-WIP (14-Nov-2006)
done.
Setting kernel variables...done.
Mounting local filesystems...done.
Activating swapfile swap...done.
Setting up networking....
Configuring network interfaces...Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/eth0/00:de:ad:b0:15:92
Sending on LPF/eth0/00:de:ad:b0:15:92
Sending on Socket/fallback
eth0: link up (100/Full)
DHCPREQUEST on eth0 to 255.255.255.255 port 67
ip length 314 disagrees with bytes received 534.
accepting packet with data after udp payload.
DHCPACK from 192.168.1.1
bound to 192.168.1.2 -- renewal in 33135 seconds.
done.
Starting portmap daemon....
JFFS2 notice: (863) check_node_data: wrong data CRC in data node at 0x149fed7c:
read
0x504ae29e, calculated 0xbfc2495b.
INIT: Entering runlevel: 2 Starting system log daemon: syslogd
JFFS2 notice: (920) check_node_data: wrong data CRC in data node at 0x18ab2f84:
read
0xf06f65e4, calculated 0x75499ae8.
.
Starting kernel log daemon: klogd.
Starting portmap daemon...Already running..
Starting MTA: exim4.
Starting internet superserver: inetd.
Starting OpenBSD Secure Shell server: sshd.
Starting NFS common utilities: statd.
Starting deferred execution scheduler: atdStarting periodic command scheduler:
crond.
Debian GNU/Linux 4.0 sam9-l9260 ttyS0
sam9-l9260 login: root
Password:
Last login: Thu Jan 1 03:08:48 1970 on ttyS0
Linux sam9-l9260 2.6.25-uc0-my_uClinux #12 Tue Jun 30 04:14:19 BST 2009
armv5tejl
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
sam9-l9260:~#
sam9-l9260:~#
sam9-l9260:~# ls -all
total 9
drwxr-xr-x 4 root root 0 Jan 1 1970 .
drwxr-xr-x 24 root root 0 Jan 1 02:00 ..
drwx------ 2 root root 0 Oct 14 2007 .aptitude
-rw------- 1 root root 5967 Jan 1 1970 .bash_history
-rw-r--r-- 1 root root 412 Oct 14 2007 .bashrc
-rw------- 1 root root 43 Oct 14 2007 .lesshst
-rw-r--r-- 1 root root 110 Oct 14 2007 .profile
drwx------ 2 root root 0 Oct 14 2007 .ssh
-rw------- 1 root root 693 Jan 1 1970 .viminfo
sam9-l9260:~#
sam9-l9260:~# cd /
Best Regards,
Kris
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