Hi, Sorry, it was a mistrake.
Eventhough i had given -T standalone, i made a mistake duing mentioning it in by mail.
As far as the load address is concerned i have changed the LOAD_ADDR in the makefile LOAD_ADDR=0x10000000
I have flashed the image at 0x40000 and then given command bootm 0x40000
All im doing in the hello world example is accepting some data and printing it.
This works if i load the program directly into RAM using tftpboot and do go 0x10000000
However, the application works fine. ONLY problem is while returning back to the u-boot. i get a crash. do i have to do something special to safely return back to the u-boot?.
I just do a return 0.
I thank you for your patience.
Regards, sriram
[sriram@localhost examples]$ ../tools/mkimage -A arm -O linux -T standalone -C gzip -a 0x10000000 -e 0x10000004 -n 'Hello Image' -d hello_world.bin.gz hello.img Image Name: Hello Image Created: Tue Jul 18 17:05:09 2006 Image Type: ARM Linux Standalone Program (gzip compressed) Data Size: 1004 Bytes = 0.98 kB = 0.00 MB Load Address: 0x10000000 Entry Point: 0x10000004
OMAP5912 OSK # bootm 0x40000 ## Booting image at 00040000 ... Image Name: Hello Image Image Type: ARM Linux Standalone Program (gzip compressed) Data Size: 1004 Bytes = 1 kB Load Address: 10000000 Entry Point: 10000004 Verifying Checksum ... OK Uncompressing Standalone Application ... OK Example expects ABI version 2 Actual U-Boot ABI version 2 Hello World argc = 1 argv[0] = "0x40000" argv[1] = "<NULL>" MyPrompt:hi
entered:hi data abort pc : [<100004c0>] lr : [<00000005>] sp : 1103fc54 ip : ffffffff fp : 00000002 r10: 00040000 r9 : 00000000 r8 : 1103ffdc r7 : 1fffffe0 r6 : 00000000 r5 : 100004c0 r4 : fffffcbf r3 : 00000020 r2 : 00000001 r1 : 0000000a r0 : 00000000 Flags: nzcv IRQs off FIQs off Mode SVC_32 Resetting CPU ...
On 7/18/06, Wolfgang Denk wd@denx.de wrote:
In message 8bf247760607180211r7f92f1cbs58dd865100ab939e@mail.gmail.com you wrote:
im trying to run the helloworld application
And you did read the manual, right?
1st Option: download the hello_world.bin to some location on RAM and execute it
OMAP5912OSK: tftpboot 0x10000000 hello_world.bin OMAP5912OSK: go 0x10000004 This works fine. no problemNo, this doesn't work, at least not in the default configuration, because '0x10000000" is not the correct link / download adress.
2nd Option: I want to burn the hello_world.bin into flash. During startup i want u-boot to launch it after booting - just like the way it boots the kernel.
It does not work for me, this is what i did.$ ../tools/mkimage -A arm -O linux -T kernel -C gzip -a 0x10000000 -e 0x10000004 -n 'Hello Image' -d hello_world.bin.gz hello.img
"-T kernel" says you that you are building a Linux kernel image. You are lying to U-Boot - what you give it is not a Linux kernel, but somethign else. U-Boot does not like liars, so it refuses to work for you.
Am i missing something?.
Yes, an understandign of image types.
Best regards,
Wolfgang Denk
-- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de It would be illogical to assume that all conditions remain stable -- Spock, "The Enterprise" Incident", stardate 5027.3