On Fri, Jan 9, 2009 at 3:31 PM, Theo Debrouwere
<[email protected]>wrote:
> Mkag,
>
> 1) internal initramfs.
>
> In the kernel source files, inside arch/arm/kernel/head.S
>
> Line 272:
>
> str r3, [r0, #4]! @ KERNEL + 1MB
> add r3, r3, #1 << 20
> str r3, [r0, #4]! @ KERNEL + 2MB
> add r3, r3, #1 << 20
> str r3, [r0, #4] @ KERNEL + 3MB
>
> You can add additional lines to increase the acceptable kernelsize. Every 2
> lines will add another MB.
> This is not a good solution, but it will work.
>
> add r3, r3, #1 << 20
> str r3, [r0, #4] @ KERNEL + 4MB
Hi Theo,
Thanks for the code snippet. Now the kernel is booting for
size more than 3 MB. Now I have a different problem. The Initramfs
filesytem is not working.
The filesystem has got only busybox-1.10.2 compiled statically(i.e no
libraries are needed to run busybox).
Along with the busybox, shell script file named "init" is in the root with
some echo commands as shown below.
/*init script file is available in "/bin/init", "/sbin/init" and also in
"/init"*/
#!/bin/sh
#Mount things needed by this script
echo "Hello"
echo "We are in INIT"
#Disable kernel messages from popping onto the screen
echo 0 > /proc/sys/kernel/printk
exec sh
The problem is, I am not able to see these "echo commands" itself while
booting with the command line arguments as shown below.
setenv bootargs console=ttyS0,115200n8 mem=120M ip=10.2.141.114:10
.2.141.12:10.2.2.1:255.255.0.0 init=/init
I tested the file system using NFS. I am able to see echo command and then
login in to the shell with out any libraries.
I compiled a "hello world" program statically and used that as init file for
initramfs. Then also I am having the similar problem in initramfs(but not in
NFS). I am not able to see "hello world on the console".
I am not really sure, if initramfs is working for kernel mvl 2.6.10. It
seems like the files are not populated in the ram.
Do u have any idea or clue what is going wrong here?
Have anybody tried initramfs option for dm6467 evm?
The console output is looking as shown below.
## Booting image at 81800000 ...
Image Name: Linux-2.6.10_mvl401-davinci_evm-
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3165984 Bytes = 3
MB
Load Add: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing
Linux.....................................................................................................................................................
done, booting the kernel.
Linux version 2.6.10_mvl401-davinci_evm-PSP_01_30_00_082 (
[email protected]) (gcc version 3.4.3 (MontaVista
3.4.3-25.0.104.0600975 2006-07-06)) #93 Tue Jan 13 15:55:04 CET 2009
CPU: ARM926EJ-Sid(wb) [41069265] revision 5 (ARMv5TEJ)
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets
Machine: DaVinci DM6467 EVM
Memory policy: ECC disabled, Data cache writeback
DM6467
Built 1 zonelists
Kernel command line: console=ttyS0,115200n8 mem=120M ip=10.2.141.114:10
.2.141.12:10.2.2.1:255.255.0.0 init=/init
PID hash table entries: 512 (order: 9, 8192 bytes)
Console: colour dummy device 80x30
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 120MB = 120MB total
Memory: 116736KB available (2395K code, 513K data, 1892K init)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
spawn_desched_task(00000000)
desched cpu_callback 3/00000000
ksoftirqd started up.
desched cpu_callback 2/00000000
desched thread 0 started up.
unzip done<6>initramfs unpacking done<6>NET: Registered protocol family 16
DaVinci: 48 gpio irqs
Registering platform device 'serial8250.0'. Parent at platform
Registering platform device 'musb_hdrc'. Parent at platform
DaVinci I2C DEBUG: 16:16:21 Dec 29 2008
Registering platform device 'i2c'. Parent at platform
ch0 default output "COMPOSITE", mode "NTSC"
ch1 default output "", mode ""
SCSI subsystem initialized
usbcore: registered new driver usbfs
usbcore: registered new driver hub
musb_hdrc: version 2.2a/db-0.4.8 [cppi-dma] [host] [debug=0]
musb_hdrc: ConfigData=0x06 (UTMI-8, dyn FIFOs, SoftConn)
musb_hdrc: MHDRC RTL version 1.500
musb_hdrc: USB Host mode controller at c8000000 using DMA, IRQ 13
musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
yaffs Jan 12 2009 08:50:46 Installing.
Registering platform device 'DavinciHD_vdce.2'. Parent at platform
CIR device registered successfully (Major = 253,
Minor = 0)<6>Registering platform device 'cir.0'. Parent at platform
Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled
Registering platform device 'serial8250'. Parent at platform
ttyS0 at MMIO 0x1c20000 (irq = 40) is a ST16654
ttyS1 at MMIO 0x1c20400 (irq = 41) is a ST16650V2
io scheduler noop registered
io scheduler anticipatory registered
RAMDISK driver initialized: 1 RAM disks of 32768K size 1024 blocksize
Registering platform device 'ti_davinci_emac'. Parent at platform
TI DaVinci EMAC: MAC address is 00:0e:99:02:b1:16
TI DaVinci EMAC Linux version updated 5.0
TI DaVinci EMAC: Installed 1 instances.
netconsole: not configured, aborting
i2c /dev entries driver
Linux video capture interface: v1.00
Registering platform device 'vpif capture.1'. Parent at platform
Registering platform device 'vpif display.1'. Parent at platform
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
MUX: initialized ATAEN
hda: TOSHIBA MK4032GAX, ATA DISK drive
elevator: using anticipatory as default io scheduler
ide0 at 0xe10661f0-0xe10661f7,0xe10663f6 on irq 22
hda: max request size: 1024KiB
hda: 78140160 sectors (40007 MB), CHS=16383/255/63
hda: hda1 hda2
ide0: BM-DMA at 0xe1066000-0xe1066007, BIOS settings: hda:pio, hdb:pio
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
mice: PS/2 mouse device common for all mice
Registering Audio Devices. Total communication peripherals
(ASP) : 2
Codec with ID = 0 on ASP = 0 is initialized.Using minor number : 3
Configuring the McASP as Master
Configuring the McASP 1 for DIT
SPDIF on ASP = 1 isinitialized.Using minor number : 19
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 8192 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Complete:
device=eth0, addr=10.2.141.114, mask=255.255.0.0, gw=10.2.2.1,
host=10.2.141.114, domain=, nis-domain=(none),
bootserver=10.2.141.12, rootserver=10.2.141.12, rootpath=
Freeing init memory: 1892K
Warning: unable to open an initial console.
(Hangs here infinitely)
>
>
> 2) external initramfs.
>
> Can you please post the u-boot line that is used to boot the kernel? I
> assume you might miss something.
>
I gave bootargs equivalent to initrd. I could not see the documentation
regarding this on the web.
> Regards,
>
> Theo
>
> Mahendra Kumar Angamuthu Ganesan wrote:
>
>> Hi,
>> Have anybody tried the option of Initramfs instead of initrd in DM6467
>> EVM for the kernel montavista 2.6.10?
>>
>>
>> I tried the uImage which contains initramfs to boot thorugh tftp with
>> bootargs as listed in the wiki.
>> http://wiki.davincidsp.com/index.php?title=Initrd
>>
>> If Uimage is more than 2.4mb then it hangs after uncompressing the kernel
>> as shown below
>>
>> ## Booting image at 81800000 ...
>> Image Name: Linux-2.6.10_mvl401-davinci_evm-
>> Image Type: ARM Linux Kernel Image (uncompressed)
>> Data Size: 2930000 Bytes = 2.8 MB
>> Load Address: 80008000
>> Entry Point: 80008000
>> Verifying Checksum ... OK
>> OK
>>
>> Starting kernel ...
>>
>> Uncompressing
>> Linux........................................................................................................................................
>>
>> (Hangs here inifinitely)
>>
>> If I try to use external initramfs using the cpio image avilable at "dir:
>> ...usr/" , it is telling bad gzip magic number.
>>
>> Have anybody tried the option of Initramfs and succeeded in it in DM6467
>> EVM for the kernel montavista 2.6.10?
>>
>>
>>
>>
>> Regards,
>> Mahendra Kumar
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
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>> [email protected]
>> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
>>
>
>
>
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