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c6a816x booting from ramdisk

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Posted by Hokyun Yu

on Jul 26 2012 06:13 AM

Intellectual470 points

hi.

I'd like to inquire about booting from ramdisk.

I need reference about this.

Best Regards.

All Replies

Posted by Vlаdimir_KаfаliеvXID

on Jul 27 2012 02:57 AM

Genius10120 points

Hello, Hokyun Yu

Here you can see how to create "ramdisk.gz":

http://processors.wiki.ti.com/index.php/Creating_a_RAMDISK

And perhaps after that you have to modify your u-boot environment to something like this as you would have assumed:

<U-BOOT># setenv bootargs 'mem=256M console=ttyO0,115200n8 root=/dev/ram0 rw initrd=0x82000000,11M'

<U-BOOT># setenv bootcmd 'mmc rescan 0;fatload mmc 0 81000000 uImage; fatload mmc 0 82000000 ramdisk.gz; bootm 0x81000000'

It is likely that you will need adjust this a bit. That's the case of SD card boot.

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Hokyun Yu

on Jul 30 2012 06:49 AM

Intellectual470 points

Hi,

It will be created </home/user/targetfs> folder when I install c6a816x ezsdk.,

I tried it on nfs and jffs2.

And I want to try to boot using ramdisk, I created ramdisk.gz file refer to the above wiki page.

$> sudo cp -r /home/user/targetfs targetfs

$> sudo chmod 777 -R targetfs

$> dd if=/dev/zero of=ramdisk bs=1M count=320

320+0 records in
320+0 records out
335544320 bytes (336 MB) copied, 1.98387 s, 169 MB/s

$> mkfs ramdisk

mke2fs 1.41.11 (14-Mar-2010)
ramdisk is not a block special device.
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
Stride=0 blocks, Stripe width=0 blocks
81920 inodes, 327680 blocks
16384 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=67633152
40 block groups
8192 blocks per group, 8192 fragments per group
2048 inodes per group
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729, 204801, 221185

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 21 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

$> sudo mkdir mnt

$> sudo mount -o loop ramdisk mnt

$> sudo cp -r /home/user/targetfs/* mnt

$> sudo umount mnt

$> gzip ramdisk

And,

Now u-boot and Kernel is flashed on nand.

TI8168_EVM#printenv
bootdelay=3
baudrate=115200
verify=yes
ramdisk_file=ramdisk.gz
loadaddr=0x81000000
script_addr=0x80900000
loadbootscript=fatload mmc 1 ${script_addr} boot.scr
bootscript= echo Running bootscript from MMC/SD to set the ENV...; source ${script_addr}
ethact=DaVinci EMAC
autoload=no
bootfile=uImage
ethaddr=00:08:65:23:22:19
nfsserver=192.168.1.230
filesize=88A451D
fileaddr=81000000
netmask=255.255.255.0
ipaddr=192.168.1.241
serverip=192.168.1.230
bootcmd=nand read 0x81000000 0x280000 0x1f0000;nand read 0x82000000 0x6c0000 0x8900000;bootm
bootargs=console=ttyS2,115200n8 mem=320M earlyprintk root=/dev/ram rw initrd=0x82000000,320M
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 2010.06 (Nov 18 2010 - 22:36:59)

Environment size: 718/8188 bytes

Besides, I've tried to several ways.

I don't know how to set bootcmd and bootargs.

Or, how to set it when create ramdisk.gz?

BR!

Posted by Vlаdimir_KаfаliеvXID

on Jul 30 2012 08:03 AM

Genius10120 points

Hello, Hokyun Yu

Please, try:

setenv bootargs 'console=ttyS2,115200n8 mem=256M earlyprintk root=/dev/ram rw initrd=0x82000000,11M'
setenv bootcmd 'nand read 0x81000000 0x280000 0x1f0000;nand read 0x82000000 0x6c0000 0x8900000;bootm 0x81000000'

11M is the size of ramdisk.gz; change that value if your case is different. Also, verify that "partition size" parameter values of the "nand read" command are correct.

If it is still not working, please describe the behaviour of the system.

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Hokyun Yu

on Jul 30 2012 21:00 PM

Intellectual470 points

Vlаdimir_KаfаliеvXID

setenv bootargs 'console=ttyS2,115200n8 mem=256M earlyprintk root=/dev/ram rw initrd=0x82000000,11M'

setenv bootcmd 'nand read 0x81000000 0x280000 0x1f0000;nand read 0x82000000 0x6c0000 0x8900000;bootm 0x81000000'

11M is the size of ramdisk.gz; change that value if your case is different. Also, verify that "partition size" parameter values of the "nand read" command are correct.

I tried that, kernel message is :

U-Boot 2010.06 (Nov 18 2010 - 22:36:59)

TI8168-GP rev 1.0

ARM clk: 987MHz
DDR clk: 398MHz

I2C: ready
DRAM: 2 GiB
NAND: 256 MiB
:,;;:;:;;;;;;;;r;;:,;;:;:;;;;;;;;:,;;:;:;;;;;;;;:,;;:;:;;;;;;;;:;;;;;;;;:,;;:;:
;,;:::;;;;r;;;rssiSiS552X5252525259GX2X9hX9X9XX2325S55252i5:,;;:;:;;;;;;;;:,;;:
;:;;;;;;;rrssSsS52S22h52299GGAAMHMM#BBH#B#HMM#HMBA&&XX2255S2S5Si:,;;:;:;;;;;;;;
;:;;r;;rsrrriiXS5S329&A&MH#BMB#A&9XXA252GXiSXX39AAMMMBB&G22S5i2SSiiiisi:,;;:;:;
;;;;;r;rr2iisiih393HB#B#AA99i22irrrX3X52AGsisss2Xii2299HBMA&X2S5S5iSiisSsi:,;;:
r:r;rrsrsihXSi2&##MHB&Ahh3AGHGA9G9h&#H##@@@##MAMMXXX9SSS29&&HGGX2i5iisiiisisi:,
;;rrrrsSiiiA&ABH&A9GAGhAhBAMHA9HM@@@@@@@@@@@@@@@@@@@HHhAh2S2SX9&Gh22SSiisiiisii
r:rrssisiS2XM##&h3AGAX&3GG3Ssr5H@M#HM2; ;2X&&&MHMB###GBB#B&XXSSs529XX55iSsisisi
r;rsrisSi2XHAhX99A3XXG&&XS;:,rH#HGhAS @@@@3rs2XBM@@A552&&AHA2XiisSS252SSsisSs
r;issi5S22&&3iSSX292&hXsr;;:;h@&G339&S9@@@@2@MA&9&HB##Xris29ABMAAX2ir;rsSi5iss5
rrsSi2XhG&9GXh399&X99i;;;;;;r#H&293H9X#@@@@@@@B&9GhAH@XrrsrsiXABHB&HG2rr;rrSiSi
;:rsisS599&AA9XG&3A35r;:::;,;BMh&&2iX5A@@@@@@@&392X5GB2;;;r;iSX393A##A&Xi:::rsi
;:rss552222X553&XHMhir;;::,:,h#HhGSXhG3#@@@@#AXXS2XAHA;::;;;;ss55XShBA3239r:,;;
r;ii2S5SSi2i53hirsh2srr::,,,,;MMXX359&Ah3h&Si59SX99A#i:,::::;;sri2,.2r;:SGAr;,:
;:;rrrrssiriXGSi::shs;;;,,,:,,rBBA9h5s5h5iS5isi2SAHB5:,,,:::;rrs5&SrisSX5Srrr:,
;,r;;;;rsriSSrrrr;;5Xrr;;,:,,.,;9AA2SsisS5323XXXG9&i:.,,::;;r;;;srrrrrr;;:;::::
:,;r;r;rrissrrr;:;::;s;;;;,:,,..,r293h222hXXAAGGGX;:,,,:,:,::;:;::,:,,,,...,,,,
;,;;;;rrrrrrrrirr;,.,,:::::::,,,,.,;SX&ABAB2hhXir:,,.,,.,,:,,,,..,,,..,..,,,..:
:.:;:;;;:;;;;r;rrs;:.. ,,:::::,:,:,,.::rrsrr;;,,.......,..,....,,,,,,,...,.,,:,
:.:::,::::::;;r;rrr;:.......,.,.,,:::,,...............,,::.,,,,:,::,,:,:,,,:,;:
,.::,:,,,,,;;;;;;;;r;;::,..............................;;;:;::::,:::::::,:,:,,,
: ,,:,,,,,,,,,,,,,:;rrr;;:;,,,,,,,::,.,.:.,.,;s,:;;;;:;:;;;;;::::,:::,:::,:,:,:
,.,,,,,,,...,,.,,....................................:,............:,,,:,:,,,,,

Net: Ethernet PHY: GENERIC @ 0x01
DaVinci EMAC
Hit any key to stop autoboot: 0
TI8168_EVM#printenv
bootdelay=3
baudrate=115200
verify=yes
ramdisk_file=ramdisk.gz
loadaddr=0x81000000
script_addr=0x80900000
loadbootscript=fatload mmc 1 ${script_addr} boot.scr
bootscript= echo Running bootscript from MMC/SD to set the ENV...; source ${script_addr}
ethact=DaVinci EMAC
autoload=no
bootfile=uImage
ethaddr=00:08:65:23:22:19
nfsserver=192.168.1.230
filesize=CE5F7B
fileaddr=81000000
netmask=255.255.255.0
ipaddr=192.168.1.241
serverip=192.168.1.230
bootargs=console=ttyS2,115200n8 mem=256M earlyprintk root=/dev/ram rw initrd=0x82000000,11M
bootcmd=nand read 0x81000000 0x280000 0x1f0000;nand read 0x82000000 0x6c0000 0x8900000;bootm 0x81000000
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 2010.06 (Nov 18 2010 - 22:36:59)

Environment size: 727/8188 bytes
TI8168_EVM#boot

NAND read: device 0 offset 0x280000, size 0x1f0000
2031616 bytes read: OK

NAND read: device 0 offset 0x6c0000, size 0x8900000
143654912 bytes read: OK
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Arago/2.6.34-psp04.00.00.07/c6a8
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1993832 Bytes = 1.9 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.34 (x0029463@swubn01) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #1 Thu Nov 18 22:18:53 IST 2010
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: ti8168evm
bootconsole [earlycon0] enabled
reserved size = 0 at 0
Memory policy: ECC disabled, Data cache writeback
OMAP chip is TI8168
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024
Kernel command line: console=ttyS2,115200n8 mem=256M earlyprintk root=/dev/ram rw initrd=0x82000000,11M
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 256MB = 256MB total
Memory: 244384k/244384k available, 17760k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
DMA : 0xffc00000 - 0xffe00000 ( 2 MB)
vmalloc : 0xd0800000 - 0xf8000000 ( 632 MB)
lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.init : 0xc0008000 - 0xc0031000 ( 164 kB)
.text : 0xc0031000 - 0xc03c9000 (3680 kB)
.data : 0xc03ca000 - 0xc03f0280 ( 153 kB)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:160
GPMC revision 6.0
IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
Total of 128 interrupts on 1 active controller
OMAP clockevent source: GPTIMER2 at 27000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 986.31 BogoMIPS (lpj=4931584)
Security Framework initialized
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
NET: Registered protocol family 16
Found NAND on CS0
Registering NAND on CS0
registered ti816x_vpss device
Registered ti81xx_fb device
ti816x_pcie: Invoking PCI BIOS...
ti816x_pcie: Setting up Host Controller...
ti816x_pcie: Register base mapped @0xd0808000
ti816x_pcie: Starting PCI scan...
PCI: bus0: Fast back to back transfers enabled
bio: create slab <bio-0> at 0
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c_omap i2c_omap.1: bus 1 rev4.0 at 100 kHz
i2c_omap i2c_omap.2: bus 2 rev4.0 at 100 kHz
Advanced Linux Sound Architecture Driver Version 1.0.22.1.
Switching to clocksource gp timer
musb_hdrc: version 6.0, cppi4.1-dma, host, debug=0
cppi41_queue_mgr_init done
registerd cppi-dma Intr @ IRQ 17
musb_hdrc: kernel must blacklist external hubs
musb_hdrc: USB Host mode controller at d080e000 using DMA, IRQ 18
musb_hdrc musb_hdrc.0: MUSB HDRC host driver
musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
musb_hdrc: kernel must blacklist external hubs
musb_hdrc: USB Host mode controller at d081e800 using DMA, IRQ 19
musb_hdrc musb_hdrc.1: MUSB HDRC host driver
musb_hdrc musb_hdrc.1: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (no cpio magic); looks like an initrd
Freeing initrd memory: 11264K
NetWinder Floating Point Emulator V0.97 (double precision)
JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
msgmni has been set to 499
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250.0: ttyS0 at MMIO 0x48020000 (irq = 72) is a ST16654
serial8250.1: ttyS1 at MMIO 0x48022000 (irq = 73) is a ST16654
serial8250.2: ttyS2 at MMIO 0x48024000 (irq = 74) is a ST16654
console [ttyS2] enabled, bootconsole disabled
console [ttyS2] enabled, bootconsole disabled
brd: module loaded
loop: module loaded
ahci ahci: forcing port_map 0x0 -> 0x3
ahci ahci: AHCI 0001.0100 32 slots 2 ports 3 Gbps 0x3 impl platform mode
ahci ahci: flags: ncq sntf pm led clo only pmp pio slum part ccc
scsi0 : ahci
scsi1 : ahci
ata1: SATA max UDMA/133 mmio [mem 0x4a140000-0x4a150fff] port 0x100 irq 16
ata2: SATA max UDMA/133 mmio [mem 0x4a140000-0x4a150fff] port 0x180 irq 16
omap2-nand driver initializing
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xca (Micron NAND 256MiB 3,3V 16-bit)
Creating 5 MTD partitions on "omap2-nand":
0x000000000000-0x000000260000 : "U-Boot"
0x000000260000-0x000000280000 : "U-Boot Env"
0x000000280000-0x0000006c0000 : "Kernel"
0x0000006c0000-0x00000cee0000 : "File System"
0x00000cee0000-0x000010000000 : "Reserved"
usbmon: debugfs is not available
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mice: PS/2 mouse device common for all mice
i2c /dev entries driver
PSTATE 1f20000
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
No device for DAI tlv320aic3x
asoc: tlv320aic3x <-> davinci-i2s mapping ok
ALSA device list:
#0: TI816x EVM (tlv320aic3x)
TCP cubic registered
NET: Registered protocol family 17
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
emac-mii: probed
mdio_bus 1:01: DaVinci EMAC: mii bus found 31
net eth1: DaVinci EMAC eth1 PHY not found
davinci_emac: probe of davinci_emac.1 failed with error -1
ata1: SATA link down (SStatus 0 SControl 300)
ata2: SATA link down (SStatus 0 SControl 300)
RAMDISK: gzip image found at block 0
RAMDISK: incomplete write (16417 != 16453)
write error
VFS: Mounted root (ext2 filesystem) on device 1:0.
attempt to access beyond end of device
ram0: rw=0, want=115214, limit=32768
EXT2-fs (ram0): error: ext2_get_inode: unable to read inode block - inode=14337, block=57606
devtmpfs: error mounting -5
Freeing init memory: 164K
attempt to access beyond end of device
ram0: rw=0, want=589832, limit=32768
EXT2-fs (ram0): error: ext2_get_inode: unable to read inode block - inode=73729, block=294915
attempt to access beyond end of device
ram0: rw=0, want=32776, limit=32768
EXT2-fs (ram0): error: ext2_get_inode: unable to read inode block - inode=4097, block=16387
attempt to access beyond end of device
ram0: rw=0, want=98312, limit=32768
EXT2-fs (ram0): error: ext2_get_inode: unable to read inode block - inode=12289, block=49155
attempt to access beyond end of device
ram0: rw=0, want=98312, limit=32768
EXT2-fs (ram0): error: ext2_get_inode: unable to read inode block - inode=12289, block=49155
Kernel panic - not syncing: No init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
Backtrace:
[<c0035390>] (dump_backtrace+0x0/0x110) from [<c02d8fe4>] (dump_stack+0x18/0x1c)
r7:00000000 r6:00000000 r5:00000000 r4:c03f0b10
[<c02d8fcc>] (dump_stack+0x0/0x1c) from [<c02d9034>] (panic+0x4c/0xc8)
[<c02d8fe8>] (panic+0x0/0xc8) from [<c003157c>] (init_post+0xa4/0xc4)
r3:cfcafe00 r2:00000000 r1:c06205e0 r0:c036cca6
[<c00314d8>] (init_post+0x0/0xc4) from [<c0008670>] (kernel_init+0x114/0x14c)
r5:00000000 r4:c03f0280
[<c000855c>] (kernel_init+0x0/0x14c) from [<c0055fec>] (do_exit+0x0/0x5bc)
r5:00000000 r4:000000

Also, file system size is :

I'll try to change other parameters.

Posted by Vlаdimir_KаfаliеvXID

on Jul 31 2012 02:47 AM

Verified Answer

Verified by Vlаdimir_KаfаliеvXID

Genius10120 points

Hello, Hokyun Yu

Please, try:

setenv bootargs 'console=ttyS2,115200n8 mem=256M earlyprintk root=/dev/ram0 rw initrd=0x82000000,137M'

setenv bootcmd 'nand read 0x81000000 0x280000 0x1f0000;nand read 0x82000000 0x6c0000 0x8900000;bootm 0x81000000'

Tell me, is it working now. Thank you.

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Hokyun Yu

on Jul 31 2012 04:03 AM

Intellectual470 points

Hi,

Already tried.

Kernel message is :

NAND read: device 0 offset 0x280000, size 0x1f0000
2031616 bytes read: OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.34 (x0029463@swubn01) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #1 Thu Nov 18 22:18:53 IST 2010
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: ti8168evm
bootconsole [earlycon0] enabled
reserved size = 0 at 0
Memory policy: ECC disabled, Data cache writeback
OMAP chip is TI8168
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024
Kernel command line: console=ttyS2,115200n8 mem=256M earlyprintk root=/dev/ram0 rw initrd=0x82000000,137M
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 256MB = 256MB total
Memory: 115360k/115360k available, 146784k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
DMA : 0xffc00000 - 0xffe00000 ( 2 MB)
vmalloc : 0xd0800000 - 0xf8000000 ( 632 MB)
lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.init : 0xc0008000 - 0xc0031000 ( 164 kB)
.text : 0xc0031000 - 0xc03c9000 (3680 kB)
.data : 0xc03ca000 - 0xc03f0280 ( 153 kB)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:160
GPMC revision 6.0
IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
Total of 128 interrupts on 1 active controller
OMAP clockevent source: GPTIMER2 at 27000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 986.31 BogoMIPS (lpj=4931584)
Security Framework initialized
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
NET: Registered protocol family 16
Found NAND on CS0
Registering NAND on CS0
registered ti816x_vpss device
Registered ti81xx_fb device
ti816x_pcie: Invoking PCI BIOS...
ti816x_pcie: Setting up Host Controller...
ti816x_pcie: Register base mapped @0xd0808000
ti816x_pcie: Starting PCI scan...
PCI: bus0: Fast back to back transfers enabled
bio: create slab <bio-0> at 0
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c_omap i2c_omap.1: bus 1 rev4.0 at 100 kHz
i2c_omap i2c_omap.2: bus 2 rev4.0 at 100 kHz
Advanced Linux Sound Architecture Driver Version 1.0.22.1.
Switching to clocksource gp timer
musb_hdrc: version 6.0, cppi4.1-dma, host, debug=0
cppi41_queue_mgr_init done
registerd cppi-dma Intr @ IRQ 17
musb_hdrc: kernel must blacklist external hubs
musb_hdrc: USB Host mode controller at d080e000 using DMA, IRQ 18
musb_hdrc musb_hdrc.0: MUSB HDRC host driver
musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
musb_hdrc: kernel must blacklist external hubs
musb_hdrc: USB Host mode controller at d081e800 using DMA, IRQ 19
musb_hdrc musb_hdrc.1: MUSB HDRC host driver
musb_hdrc musb_hdrc.1: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (no cpio magic); looks like an initrd
swapper invoked oom-killer: gfp_mask=0x200d2, order=0, oom_adj=0
Backtrace:
[<c0035390>] (dump_backtrace+0x0/0x110) from [<c02d8fe4>] (dump_stack+0x18/0x1c)
r7:cfc28000 r6:00000000 r5:00000000 r4:c03cd750
[<c02d8fcc>] (dump_stack+0x0/0x1c) from [<c0081828>] (dump_header+0x44/0x110)
[<c00817e4>] (dump_header+0x0/0x110) from [<c0081df8>] (__out_of_memory+0x144/0x194)
r5:00000000 r4:c03cd750
[<c0081cb4>] (__out_of_memory+0x0/0x194) from [<c0081edc>] (out_of_memory+0x94/0xcc)
[<c0081e48>] (out_of_memory+0x0/0xcc) from [<c0084b94>] (__alloc_pages_nodemask+0x418/0x50c)
r5:cfc26000 r4:00000000
[<c008477c>] (__alloc_pages_nodemask+0x0/0x50c) from [<c007f85c>] (grab_cache_page_write_begin+0x58/0x98)
[<c007f804>] (grab_cache_page_write_begin+0x0/0x98) from [<c00bd38c>] (simple_write_begin+0x28/0xe4)
[<c00bd364>] (simple_write_begin+0x0/0xe4) from [<c007eac4>] (generic_file_buffered_write+0xe4/0x21c)
r7:00000000 r6:06f8a000 r5:06f8a000 r4:00001000
[<c007e9e0>] (generic_file_buffered_write+0x0/0x21c) from [<c0080770>] (__generic_file_aio_write+0x428/0x478)
[<c0080348>] (__generic_file_aio_write+0x0/0x478) from [<c0080834>] (generic_file_aio_write+0x74/0xd8)
[<c00807c0>] (generic_file_aio_write+0x0/0xd8) from [<c00a3348>] (do_sync_write+0xa0/0xec)
[<c00a32a8>] (do_sync_write+0x0/0xec) from [<c00a3d24>] (vfs_write+0xb0/0xd8)
r8:c2000000 r7:08900000 r6:cfc29f08 r5:c2000000 r4:cfc73800
[<c00a3c74>] (vfs_write+0x0/0xd8) from [<c00a3e10>] (sys_write+0x44/0x70)
r7:08900000 r6:cfc73800 r5:00000000 r4:00000000
[<c00a3dcc>] (sys_write+0x0/0x70) from [<c000aebc>] (populate_rootfs+0x1b4/0x1f8)
r8:00000000 r7:cfcf4000 r6:cfcf4048 r5:00000000 r4:00000000
[<c000ad08>] (populate_rootfs+0x0/0x1f8) from [<c003135c>] (do_one_initcall+0x64/0x1bc)
[<c00312f8>] (do_one_initcall+0x0/0x1bc) from [<c00085f4>] (kernel_init+0x98/0x14c)
r7:00000000 r6:00000000 r5:00000000 r4:c0028700
[<c000855c>] (kernel_init+0x0/0x14c) from [<c0055fec>] (do_exit+0x0/0x5bc)
r5:00000000 r4:00000000
Mem-info:
Normal per-cpu:
CPU 0: hi: 90, btch: 15 usd: 6
active_anon:0 inactive_anon:0 isolated_anon:0
active_file:0 inactive_file:0 isolated_file:0
unevictable:28554 dirty:0 writeback:0 unstable:0
free:0 slab_reclaimable:43 slab_unreclaimable:121
mapped:0 shmem:0 pagetables:0 bounce:0
Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:114216kB io
lowmem_reserve[]: 0 0
Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
28554 total pagecache pages
65536 pages of RAM
25 free pages
36696 reserved pages
122 slab pages
0 pages shared
0 pages swap cached
Kernel panic - not syncing: Out of memory and no killable processes...

Backtrace:
[<c0035390>] (dump_backtrace+0x0/0x110) from [<c02d8fe4>] (dump_stack+0x18/0x1c)
r7:cfc28000 r6:00000000 r5:00000000 r4:c03f0b10
[<c02d8fcc>] (dump_stack+0x0/0x1c) from [<c02d9034>] (panic+0x4c/0xc8)
[<c02d8fe8>] (panic+0x0/0xc8) from [<c0081e00>] (__out_of_memory+0x14c/0x194)
r3:00000000 r2:c03d3e00 r1:00003320 r0:c0376bfd
[<c0081cb4>] (__out_of_memory+0x0/0x194) from [<c0081edc>] (out_of_memory+0x94/0xcc)
[<c0081e48>] (out_of_memory+0x0/0xcc) from [<c0084b94>] (__alloc_pages_nodemask+0x418/0x50c)
r5:cfc26000 r4:00000000
[<c008477c>] (__alloc_pages_nodemask+0x0/0x50c) from [<c007f85c>] (grab_cache_page_write_begin+0x58/0x98)
[<c007f804>] (grab_cache_page_write_begin+0x0/0x98) from [<c00bd38c>] (simple_write_begin+0x28/0xe4)
[<c00bd364>] (simple_write_begin+0x0/0xe4) from [<c007eac4>] (generic_file_buffered_write+0xe4/0x21c)
r7:00000000 r6:06f8a000 r5:06f8a000 r4:00001000
[<c007e9e0>] (generic_file_buffered_write+0x0/0x21c) from [<c0080770>] (__generic_file_aio_write+0x428/0x478)
[<c0080348>] (__generic_file_aio_write+0x0/0x478) from [<c0080834>] (generic_file_aio_write+0x74/0xd8)
[<c00807c0>] (generic_file_aio_write+0x0/0xd8) from [<c00a3348>] (do_sync_write+0xa0/0xec)
[<c00a32a8>] (do_sync_write+0x0/0xec) from [<c00a3d24>] (vfs_write+0xb0/0xd8)
r8:c2000000 r7:08900000 r6:cfc29f08 r5:c2000000 r4:cfc73800
[<c00a3c74>] (vfs_write+0x0/0xd8) from [<c00a3e10>] (sys_write+0x44/0x70)
r7:08900000 r6:cfc73800 r5:00000000 r4:00000000
[<c00a3dcc>] (sys_write+0x0/0x70) from [<c000aebc>] (populate_rootfs+0x1b4/0x1f8)
r8:00000000 r7:cfcf4000 r6:cfcf4048 r5:00000000 r4:00000000
[<c000ad08>] (populate_rootfs+0x0/0x1f8) from [<c003135c>] (do_one_initcall+0x64/0x1bc)
[<c00312f8>] (do_one_initcall+0x0/0x1bc) from [<c00085f4>] (kernel_init+0x98/0x14c)
r7:00000000 r6:00000000 r5:00000000 r4:c0028700
[<c000855c>] (kernel_init+0x0/0x14c) from [<c0055fec>] (do_exit+0x0/0x5bc)
r5:00000000 r4:00000000

I guess that...

The problem is creating ramdisk.gz.

Here you can see block size of NAND :

http://processors.wiki.ti.com/index.php/DM816x_AM389x_PSP_U-Boot#U-Boot_NAND_Support

Micron Nand parts (page size 2KB, block size 128KB) are supported on DM816xEVM platforms.

So,

In this wiki page, http://processors.wiki.ti.com/index.php/Creating_a_RAMDISK,

[root@localhost jjd]# dd if=/dev/zero of=ramdisk bs=1M count=32 32+0 records in 32+0 records out 33554432 bytes (34 MB) copied, 0.243921 s, 138 MB/s

is right?

I tried the following :

$> dd if=/dev/zero of=ramdisk bs=128K count=2660
2660+0 records in
2660+0 records out
348651520 bytes (349 MB) copied, 2.48309 s, 140 MB/s

But failed.

See also :

Posted by Vlаdimir_KаfаliеvXID

on Jul 31 2012 09:32 AM

Genius10120 points

Hello, Hokyun Yu

Did you try with:

dd if=/dev/zero of=ramdisk bs=1M count=349

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Vlаdimir_KаfаliеvXID

on Jul 31 2012 10:03 AM

Verified Answer

Verified by Vlаdimir_KаfаliеvXID

Genius10120 points

Hokyun Yu,

Your log says:

Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (no cpio magic); looks like an initrd

It seems that your kernel is configured for initramfs, but you pass what is for the initrd configuration.

Please try to follow also the instructions here:

http://processors.wiki.ti.com/index.php/Initrd

Your case is initrd, but alternatively you can try initramfs. The file system and kernel in initramfs configuration are in one image.

BR

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Hokyun Yu

on Aug 02 2012 04:19 AM

Intellectual470 points

1st. initrd

$> cd ti-ezsdk_c6a816x-evm_5_00_00_56

$> make linux_clean

$> source linux-devkit/environment –setup

$> cd psp/linux-2.6.34-psp04.00.00.07

$> make –C ./ ARCH=arm CROSS_COMPILE=/home/user/CodeSourcery/Sourcery_G++_Lite/bin/arm-non-linux-gnuebi- clean

$> make –C ./ ARCH=arm CROSS_COMPILE=/home/user/CodeSourcery/Sourcery_G++_Lite/bin/arm-non-linux-gnuebi- ti8168_evm_defconfig

$> gedit .config

$> make –C ./ ARCH=arm CROSS_COMPILE=/home/user/CodeSourcery/Sourcery_G++_Lite/bin/arm-non-linux-gnuebi- uImage

make ramdisk.gz

$> dd if=dev/zero of=ramdisk bs=1M count=320M

$> mkfs ramdisk

$> sudo mount -o loop ramdisk mnt

$> sudo cp -r /home/user/targetfs_fs/* mnt

$> sudo umount mnt

$> gzip ramdisk

set u-boot env

bootcmd=nand read 0x81000000 0x280000 0x1f0000;nand read 0x82000000 0x6c0000 0x7500000; bootm 0x81000000
bootargs=console=ttyS2,115200n8 mem=512M earlyprintk root=/dev/ram0 rw initrd=0x82000000,320M

boot

but, same message :

Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (junk in compressed archive); looks like an initrd

2nd. initramfs

$> mkdir target_fs

$> sudo cp –r /home/user/targetfs/* /target_fs

$> sudo chmod 777 –R target_fs

$> cd target_fs

$> ln –s ./bin/busybox ./init

$> find . | cpio -H newc -o > ../target_fs.cpio

$> cd ..

$> cd ti-ezsdk_c6a816x-evm_5_00_00_56/psp/linux-2.6.34-psp04.00.00.07

$> gedit .config

CONFIG_INITRAMFS_SOURCE="/home/user/target_fs"

CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=320
CONFIG_BLK_DEV_RAM_SIZE=335544320
CONFIG_BLK_dEV_RAM_BLOCKSIZE=1048576

set u-boot env

TI8168_EVM#printenv

bootdelay=3
baudrate=115200
verify=yes
ramdisk_file=ramdisk.gz
loadaddr=0x81000000
script_addr=0x80900000
loadbootscript=fatload mmc 1 ${script_addr} boot.scr
bootscript= echo Running bootscript from MMC/SD to set the ENV...; source ${script_addr}
ethact=DaVinci EMAC
autoload=no
bootfile=uImage
ethaddr=00:08:65:23:22:19
nfsserver=192.168.1.230
filesize=7491670
fileaddr=81000000
netmask=255.255.255.0
ipaddr=192.168.1.241
serverip=192.168.1.230
bootcmd=nand read 0x81000000 0x280000 0x7500000;bootm 0x81000000
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 2010.06 (Nov 18 2010 - 22:36:59)

Environment size: 597/8188 bytes

boot

TI8168_EVM#boot

NAND read: device 0 offset 0x280000, size 0x7500000
122683392 bytes read: OK
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Linux-2.6.34
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 122230320 Bytes = 116.6 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ...

... just stopped.

gg........Please explain easily.... T.T

Posted by Vlаdimir_KаfаliеvXID

on Aug 02 2012 05:59 AM

Verified Answer

Verified by Vlаdimir_KаfаliеvXID

Genius10120 points

Hello, Hokyun Yu

About initrd:

Please, try to create ramdisk.gz exactly how it is described here:

http://processors.wiki.ti.com/index.php/Initrd#Creation

http://processors.wiki.ti.com/index.php/Initrd#Filling

=================================

About initramfs:

You don't have bootargs variable in your u-boot environment.

Besides, this line:

sudo cp –r /home/user/targetfs/* /target_fs

should be:

sudo cp –r /home/user/targetfs/* target_fs

sudo cp –r /home/user/targetfs/* /home/user/target_fs

Please, also be sure to check this:

"Then, if you compile the kernel, e.g. by make uImage, the cpio archive is generated and embedded into the kernel:

 ...
 CHK     include/linux/compile.h
 GEN     usr/initramfs_data.cpio.gz
 AS      usr/initramfs_data.o
 LD      usr/built-in.o
 ..."

Thank you.

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Hokyun Yu

on Aug 02 2012 20:49 PM

Intellectual470 points

About initramfs :

http://processors.wiki.ti.com/index.php/Initrd - initramfs - installation,

"If you start the kernel, the initramfs is already there. Therefore, there is no root=/dev/ram0 rw initrd=0x87000000,8M bootargs option necessary. Remove this if you still have it!"

So I deleted the bootargs.

And set 'bootargs=console=ttyS2,115200n8 mem=512M earlyprintk' also.

In addition, kernel size is 116MB. Is it right?

Vlаdimir_KаfаliеvXID
Please, also be sure to check this:

"Then, if you compile the kernel, e.g. by make uImage, the cpio archive is generated and embedded into the kernel:
 ...
 CHK     include/linux/compile.h
 GEN     usr/initramfs_data.cpio.gz
 AS      usr/initramfs_data.o
 LD      usr/built-in.o
 ..."

I have checked that.

Could you explain about 'initramfs - creation'?

Especially init.

I'll try to above initrd.

I'm so sorry but please help.

Posted by Vlаdimir_KаfаliеvXID

on Aug 03 2012 06:47 AM

Verified Answer

Verified by Vlаdimir_KаfаliеvXID

Genius10120 points

Hello, Hokyun Yu

initrd

Please, try to follow the instructions on how to create ramdisk.gz under sections "Creation" and "Filling". And use that ramdisk.gz, not one that is created previously with another procedure.

========================

initramfs

You didn't have such line

bootargs=console=ttyS2,115200n8 mem=512M earlyprintk

when you posted your "printenv" output. That way your console isn't set up and that is why you see nothing after:

TI8168_EVM#boot

//stops here

So please, make sure that the bootargs are added and tell me is initramfs working now, and if it is not - what is the error now.

P.S. If this response helps answering your question please mark this post as verified - Thanks!

Posted by Hokyun Yu

on Aug 08 2012 03:47 AM

Intellectual470 points

Vlаdimir_KаfаliеvXID

initramfs

You didn't have such line

bootargs=console=ttyS2,115200n8 mem=512M earlyprintk

when you posted your "printenv" output. That way your console isn't set up and that is why you see nothing after:

TI8168_EVM#boot

NAND read: device 0 offset 0x280000, size 0x7500000
122683392 bytes read: OK
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Linux-2.6.34
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 122230320 Bytes = 116.6 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ...

//stops here

So please, make sure that the bootargs are added and tell me is initramfs working now, and if it is not - what is the error now.

BR