Linux Kernel Hangs at "Starting Kernel"

Hi,

Now I made some progress, I am using instructions from this page:

http://processors.wiki.ti.com/index.php/Kernel_-_Common_Problems_Booting_Linux#Problem_.232_-_No_more_output_is_seen_on_the_console_after_.22booting_the_kernel.22

## Booting kernel from Legacy Image at c0700000 ...
   Image Name:   Linux-2.6.33-rc4
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2202232 Bytes =  2.1 MB
   Load Address: c0008000
   Entry Point:  c0008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

I still have a question, in the document it says to use CONFIG_OMAP_LL_DEBUG_UARTx to choose which UART is used for debug. However that config is only available for the OMAP processors so not for AM1808. Is there a way to choose the UART to use for the AM1808? I am using Uart1 for debugging.

I guess that the problem isn't related to the machine ID used by U-Boot and the Kernel as they are both defined to be 2157, TI DaVinci DA850, davinci_da850_evm. Could it be that it is the JTAG number that doesn't match? It would help if I manage to get some debug information out of the kernel.

Best Regards,

Niclas Knuts

Hi Niclas,

As we were getting some problems when UART0 and UART1 were enabled while using Arago file system, we have disabled these in the Linux Kernel. You need to enable them in "arch/arm/mach-davinci/board-da850-evm.c" by commenting out the below code:

        /*
         * shut down uart 0 and 1; they are not used on the board and
         * accessing them causes endless "too much work in irq53" messages
         * with arago fs
         */
        __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
        __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);

Regards, Sudhakar

Dear All,

I have been running through a problem .. my kernel image starts booting and stops at starting kernel.....

Configuration selected for creating uImage is am3517_evm_defconfig.
i have referred this site

http://processors.wiki.ti.com/index.php/Kernel_-_Common_Problems_Booting_Linux#Problem_.232_-_No_more_output_is_seen_on_the_console_after_.22booting_the_kernel.22

but trying all the changes mentioned in the above site ..has not helped me..

1.Using the defconfiguration -> i changed the bootargs 'console=ttyS2,115200n8'
2.changing the bootargs for 2.6 -> 'console=ttyS2,115200n8' O=not zero

The output is as below....

Texas Instruments X-Loader 1.47 (Mar 24 2011 - 15:54:47)
Booting from nand . . .
Starting OS Bootloader...


U-Boot 2010.06-rc1 (Mar 24 2011 - 15:55:56)

OMAP34xx/35xx-GP ES1.0, CPU-OPP2 L3-165MHz
TAM3517 TWISTER Board + LPDDR/NAND
I2C:   ready
DRAM:  256 MiB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Customer/Vender : TechNexion
Project/Board   : tam3517
Sequence Number : 1052000000000069
revision        : TN15 1.0
eth0 addr      : 00:1F:7B:15:01:10
eth1 addr      : 00:1F:7B:15:01:11
eth2 addr      : 00:1F:7B:15:01:12
eth3 addr      : 00:1F:7B:15:01:13
Die ID #30e20000000000000155dc140400f016
Net:   Ethernet PHY: GENERIC @ 0x00
DaVinci EMAC, smc911x-0
Hit any key to stop autoboot:  1  0
Using DaVinci EMAC device
TFTP from server 192.168.1.233; our IP address is 192.168.1.54
Filename 'uImage'.
Load address: 0x80008000
Loading: *#################################################################
     #################################################################
     #################################################################
     #################################################################
     #################################################################
     #################################################################
     #################################################################
     ########
done
Bytes transferred = 2369032 (242608 hex)
## Booting kernel from Legacy Image at 80008000 ...
   Image Name:   Linux-2.6.33.7-rt29
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2368968 Bytes = 2.3 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   XIP Kernel Image ... OK
OK

Starting kernel ...

Thanks and regards

Hrishikesh!

What are your exact bootargs?

BTW, AM3517 and AM1808 are quite different (You responded to an old thread for AM1808).

Hi!

I have posted the new post on this link ..you can find my boot args to on this post...

I have tried using ttyS0,ttyS2,ttyO2 ( not zero)

bootargs mem=256M ip=dhcp noinitrd console=ttyS2,115200n8 root=/dev/nfs rw nfsroot=192.168.1.233:/home/Linux/FS/target,nolock,rsize-1024,wsize=1024

Actual arguements

I have on daught : the kernel source i am using shows default configurations for

[root@localhost linux-omap3]# make ARCH=arm help
Cleaning targets:
  clean          - Remove most generated files but keep the config and
                    enough build support to build external modules
  mrproper      - Remove all generated files + config + various backup files
  distclean      - mrproper + remove editor backup and patch files

/output deleted/****************

 
  ks8695_defconfig         - Build for ks8695
  pxa3xx_defconfig         - Build for pxa3xx
  at91sam9rlek_defconfig   - Build for at91sam9rlek
  qil-a9260_defconfig      - Build for qil-a9260
  pxa168_defconfig         - Build for pxa168
  sx1_defconfig            - Build for sx1
  omap_zoom2_defconfig     - Build for omap_zoom2
  ateb9200_defconfig       - Build for ateb9200
  omap_3630sdp_defconfig   - Build for omap_3630sdp
  colibri_pxa300_defconfig - Build for colibri_pxa300
  pnx4008_defconfig        - Build for pnx4008
  usb-a9263_defconfig      - Build for usb-a9263
  kirkwood_defconfig       - Build for kirkwood
  mx27_defconfig           - Build for mx27
  ebsa110_defconfig        - Build for ebsa110
  nuc960_defconfig         - Build for nuc960
  am3517_evm_defconfig     - Build for am3517_evm  --> i am using this cinfiguration for compilation ...but i found this is for am3517 evm board and i have different board.

my board is TAM-3517..will it work...or is it the cause which hangs the kernel..

is there any way out through which i can get the kernel source for the TAM-3517.

when i independently configure the kernel the kernel compilation ends up with an error.[make menuconfig]

  omap3_evm_defconfig      - Build for omap3_evm
  iop13xx_defconfig        - Build for iop13xx
  omap_generic_2420_defconfig - Build for omap_generic_2420
  tct_hammer_defconfig     - Build for tct_hammer
  omap3_touchbook_defconfig - Build for omap3_touchbook
  omap_generic_1610_defconfig - Build for omap_generic_1610
  shannon_defconfig        - Build for shannon
  cpuat91_defconfig        - Build for cpuat91
  h7202_defconfig          - Build for h7202
  ixp2000_defconfig        - Build for ixp2000
  omap_osk_5912_defconfig  - Build for omap_osk_5912
  ixp23xx_defconfig        - Build for ixp23xx
  bcmring_defconfig        - Build for bcmring
  palmtt_defconfig         - Build for palmtt
  n770_defconfig           - Build for n770
  mx3_defconfig            - Build for mx3
  omap_2430sdp_defconfig   - Build for omap_2430sdp
  nuc950_defconfig         - Build for nuc950
  palmz72_defconfig        - Build for palmz72
  omap3_defconfig          - Build for omap3
  footbridge_defconfig     - Build for footbridge
  rpc_defconfig            - Build for rpc
  s3c6400_defconfig        - Build for s3c6400
  eseries_pxa_defconfig    - Build for eseries_pxa
  cpu9g20_defconfig        - Build for cpu9g20
  omap_generic_1510_defconfig - Build for omap_generic_1510
  ecbat91_defconfig        - Build for ecbat91
  pcm027_defconfig         - Build for pcm027
  pxa910_defconfig         - Build for pxa910
  mv78xx0_defconfig        - Build for mv78xx0
  realview_defconfig       - Build for realview
  cam60_defconfig          - Build for cam60
  integrator_defconfig     - Build for integrator
  orion5x_defconfig        - Build for orion5x
  omap_zoom3_defconfig     - Build for omap_zoom3
  msm_defconfig            - Build for msm
  omap_perseus2_730_defconfig - Build for omap_perseus2_730
  assabet_defconfig        - Build for assabet
  corgi_defconfig          - Build for corgi
  neocore926_defconfig     - Build for neocore926
  kafa_defconfig           - Build for kafa
  sam9_l9260_defconfig     - Build for sam9_l9260
  csb637_defconfig         - Build for csb637
  cm_t35_defconfig         - Build for cm_t35
  onearm_defconfig         - Build for onearm
  at91sam9261ek_defconfig  - Build for at91sam9261ek
  nhk8815_defconfig        - Build for nhk8815
  realview-smp_defconfig   - Build for realview-smp
  at91rm9200ek_defconfig   - Build for at91rm9200ek
  at91sam9260ek_defconfig  - Build for at91sam9260ek
  netwinder_defconfig      - Build for netwinder
  zeus_defconfig           - Build for zeus
  iop33x_defconfig         - Build for iop33x
  xcep_defconfig           - Build for xcep
  mx1ads_defconfig         - Build for mx1a

;

;;

;;many other config files

  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build
  make V=2   [targets] 2 => give reason for rebuild of target
  make O=dir [targets] Locate all output files in "dir", including .config
  make C=1   [targets] Check all c source with $CHECK (sparse by default)
  make C=2   [targets] Force check of all c source with $CHECK

Execute "make" or "make all" to build all targets marked with [*]
For further info see the ./README file

http://e2e.ti.com/support/dsp/sitara_arm174_microprocessors/f/416/t/114067.aspxD

Hi,

Could I watch your BMC terminal log?