September 2005 - U-Boot

[U-Boot-Users] booting u-boot from internal flash on M5282EVB
by David Peters 08 Sep '05

08 Sep '05

I'm struggling trying to get U-Boot to boot from the internal flash of the M5282EVB. Can anyone get me going in the right direction? Thank you!

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[U-Boot-Users] Ram disk image for ARM and CRC error in flash
by Swapnil Ashok Narkhede 07 Sep '05

07 Sep '05

I want to get the OS image running on pxa255. I have several questions 1> TIll now i was just making OS image (uImage ) and loading it to RAM and then to flash. When i load the image to RAM and execute iminfo 0xa0800000 i get the image info with valid checksum. o/p>>> SWAP$ tftp 0xa0800000 uImage_gzip Using MAC Address 00:04:34:00:21:59 TFTP from server 192.168.37.202; our IP address is 192.168.36.173 Filename 'uImage_gzip'. Load address: 0xa0800000 Loading: T #T ################################################################ ################################################################# ##################### done Bytes transferred = 771969 (bc781 hex) SWAP$ iminfo 0xa0800000 ## Checking Image at a0800000 ... Image Name: Linux Kernel Image Image Type: ARM Linux Kernel Image (gzip compressed) Data Size: 771905 Bytes = 753.8 kB Load Address: a0800000 Entry Point: a0800000 Verifying Checksum ... OK o/p<<< After erasing the relevant memory in flash when i transfer the OS image to flash using cp.b 0xa0800000 0x40000 0xbc781(size) i can tranfer the image successfully, but when i do iminfo 0x40000 i get the result as Verifying Checksum .. Bad DATA CRC. the iminfo in both cases transfers exactly the same size data, o/p>>> SWAP$ erase 0x40000 0x1fffff ....... done Erased 7 sectors SWAP$ cp.b 0xa0800000 0x40000 0xbc781 Copy to Flash... done SWAP$ iminfo 0x40000 ## Checking Image at 00040000 ... Image Name: Linux Kernel Image Image Type: ARM Linux Kernel Image (gzip compressed) Data Size: 771905 Bytes = 753.8 kB Load Address: a0800000 Entry Point: a0800000 Verifying Checksum ... Bad Data CRC o/p<<< Why do i get this error. 2> Using the uImage in RAM, when i try to execute it using bootm from the RAM. i get the following output o/p>>> SWAP$ bootm 0xa0800000 ## Booting image at a0800000 ... Image Name: Linux Kernel Image Image Type: ARM Linux Kernel Image (gzip compressed) Data Size: 771905 Bytes = 753.8 kB Load Address: a0800000 Entry Point: a0800000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK B4 starting kernel Starting kernel ... B4 cleanup After cleanup o/p<<< I had just putup few printf statements to know exactly where the System hangs. It hangs during the callto function theKernel. Which receives the bootparams. After reading the manual, REadme and a few posts i came to know that the bootargs were set to NFSboot. but the bootargs env variable was not properly configured. As per my understanding it is mandatory to either specify root file system as INIT RAM DISK or NFS for the OS to boot. Is it? 3> I would be able to prepare uRamdisk using mkimage, but that requires an image data file SIMPLE-ramdisk.image.gz to be specified with the -d switch. How do i make the SIMPLE-ramdisk.image.gz so that i can make uRamdisk. OR from where do i find SIMPLE-ramdisk.image. for ARM processor Regards, Swapnil Narkhede Mob:- 0432025023 Email:- s3092131(a)student.rmit.edu.au School of Computer Science and Information Technology RMIT University, Melbourne

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[U-Boot-Users] "go addr" Question...
by Robin Getz 07 Sep '05

07 Sep '05

We were having an issue with the command "go addr" starting some binary images (like the linux kernel and others). Aubrey Li tracked this down to what appears to us as an issue in u-boot/common/cmd_boot.c:do_go which doesn't clear, or invalidate cache. Right now, we added this to our cvs, with an ifdef - if this is a common need for other architectures, we can take out the ifdef, and re-sumbit the patch. Comments, Suggestions, or Criticisms welcomed. Thanks -Robin diff -u -r1.1.1.1 -r1.2 --- cmd_boot.c 13 Mar 2005 21:26:46 -0000 1.1.1.1 +++ cmd_boot.c 6 Sep 2005 08:05:51 -0000 1.2 @@ -48,6 +48,10 @@ printf ("## Starting application at 0x%08lX ...\n", addr); +#if defined(CONFIG_BLACKFIN) + if(icache_status()) + invalidate_entire_icache(); +#endif /* * pass address parameter as argv[0] (aka command name), * and all remaining args

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[U-Boot-Users] Issues with U-boot port
by Srivatsan CR 07 Sep '05

07 Sep '05

Hi all, 1) We have a custom board based on MPC8280 processor. U-boot flash part is running properly on the board, even relocation is happening. This was confirmed by seeing the copied data from flash to RAM. But after printing the RAM size on the serial console u-boot is not proceeding. The system hangs. 2) If I try to switch on the DEBUG flag in the config.mk, my hardware is getting continuous reset. It is doing so because of getting some wrong addressing while executing init_debug module in start.S. Is point 1 and 2 related ? Also my printfs do not work. 3) Even when I do a debug using GDB I face a problem as stated in 2). In 2 and 3 what we see is that flash gets into command mode and whenever we use BDi2000 to display the flash area, we see that flash is in command mode and is displaying the status of the last command (Possible reason for a reset). We have to write 0xffffffff manually to make it come out of the command mode . We use a micron Flash compatible with Intel strata flash. MT28F128J3. (P.S : we have commented out the flash initialization part) Thanking you all. With Regards, C.R.Srivatsan (P.S : please excuse me if this mail reaches in HTML format, I have selected text mode here. I am not sure whats the problem. Excuse me).

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RE: [U-Boot-Users] BDI2000 and MPC8260
by Rune Torgersen 06 Sep '05

06 Sep '05

> -----Original Message----- > From: Wolfgang Denk > Sent: Thursday, September 01, 2005 10:50 > In message > <20050901111214.457804dc.ajz(a)cambridgebroadband.com> you wrote: > > > > The problem I am seeing is that the bdi2000 cannot > communicate with the PM828 if the HRW is not > > present in the flash device. I.e. you need u-boot.bin > already loaded into flash in order to load > > u-boot.bin into flash! > > This is normal; with an erased flash, the processor will read a HRCW > which sets external bus arbitration and CPU core disabled - there is > nothing left for the BDI to communicate with. We have anoter solution working here. To initally program the HRCW into flash we use another JTAG device (a Corellis JTAG interface) to wiggle th pins on the 8260 to program the flash. This works, but is fairly slow. To program 256 bytes of HRCW takes 10 - 15 seconds. After this we switch to BDI2000 and program U-Boot. This way we don't need yet another piece of HW on the board.

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Re: [U-Boot-Users] Re: "go addr" Question...
by Robin Getz 06 Sep '05

06 Sep '05

>U-boot typically runs with instruction cache enabled and data cache >disabled (experience base: PowerPC). This is because instruction cache >"just works" and is very beneficial and data cache generally causes >massive grief This is how we have things set up (data cache and instruction cache on by default). Based on the fact that uncompressing an image : icache dcache time boot* off off 11 seconds off on 10 seconds on off 3 seconds on on 1 second *time to boot is based on the time to bootm to check the checksum, and uncompress the image, and print out "Starting Kernel at 0xnnnnnn". Our customers want sub 2 second boot time - so we need to have both dcache and icache on. If the restriction is that you can't use the go command with dcache on, then I can also live with that (and just put 'dcache on;' as part of the boot command for Linux kernels. -Robin

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[U-Boot-Users] Yosemite, yellowstone patch
by Steven Blakeslee 06 Sep '05

06 Sep '05

Attached is a patch that enables the PCI interrupt for the AMCC yellowstone and yosemite boards.

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FW: [U-Boot-Users] BDI2000 and MPC8260
by Rune Torgersen 06 Sep '05

06 Sep '05

> -----Original Message----- > From: Jerry Van Baren > Sent: Tuesday, September 06, 2005 10:44 > * Freescale seems to have stopped providing unfettered access to the > BSDL (Boundary Scan Description Language) interface to their > processors. > For instance, the MPC8260 is not in the list: > <http://www.freescale.com/webapp/sps/site/overview.jsp?nodeId= > 0162468rH3bTdGZj9NtRjM> That page only lists the PowrPC cpu BSDL files not the PowerQUICC cou files. I can find the BSDL files for all the 82xx CPUS, but you have to go to each CPU's page to find them BSDL files gfor 826x HiP3 and HGiP4 can be found here: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPC8266&n odeId=0162468rH3Jk192977

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Re: [U-Boot-Users] MPC8280 mkimage: "...has invalid buffer for XIP"
by KokHow Teh 06 Sep '05

06 Sep '05

Hi; Sorry I didn't read the documentation before posting. Now I have read and here are my observations and questions: (1) Is XIP kernel only applicable with a specific patch? My Linux host is running 2.4.20 and when I `make xconfig`, I don't see any XIP option available at all. Where can I download the patches for specific kernel-version and architectures? (2) After I have read through the archives with search results for "XIP", I gather that there are only 3 architectures that currently support XIP which are SH, PPC and ARM? http://sourceforge.net/mailarchive/message.php?msg_id=9491873 (3) What are the general rule-of-thumb to prepare an XIP kernel/application for booting from u-boot with `bootm` if it is NOT linux? I see from `mkimage.c` source code that the first 64 bytes of the binary image to `mkimage` must be filled with 0xff. Does it mean that if it is not Linux and we can't follow the guidelines provided in http://www.denx.de/twiki/bin/view/DULG/ConfigureLinuxForXIP, we must, therefore, by hook or by crook, free up the first 64 bytes of the binary image and fill it with 0xFF in the make process so that the binary image is applicable to `mkimage`? BTW, I am using eldk-ppc-linux-x86/usr/bin/ppc_6xx-objcopy to prepare the binary image for `mkimage`. Thanks for any input. Regards, TEH Wolfgang Denk <wd(a)denx.de>@denx.de on 09/06/2005 04:53:10 PM Sent by: wd(a)denx.de To: "KokHow Teh" <KokHow.Teh(a)marconi.com> cc: u-boot-users(a)lists.sourceforge.net Subject: Re: [U-Boot-Users] MPC8280 mkimage: "...has invalid buffer for XIP" In message <OF16F3D614.53EAF706-ON48257074.00109765(a)uk.marconicomms.com> you wrote: > > I read the mkimage output again and found out the "-x" option. I > tried it out and have the following error. You s*really* should read the documentation before posting. > "KokHow Teh" <KokHow.Teh(a)marconi.com>@lists.sourceforge.net on 09/06/2005 > 10:56:35 AM > > Sent by: u-boot-users-admin(a)lists.sourceforge.net ... And please stick to the netiquette: don't top-post/full-quote !! Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd(a)denx.de We have found all life forms in the galaxy are capable of superior development. -- Kirk, "The Gamesters of Triskelion", stardate 3211.7

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Re: [U-Boot-Users] MPC8280 mkimage: "...has invalid buffer for XIP"
by KokHow Teh 06 Sep '05

06 Sep '05

Hi; I read the mkimage output again and found out the "-x" option. I tried it out and have the following error. [teh@ShrekII inetutil 67]$ $OBJCOPY -O binary -R .note -R .comment -S rom.elf inetutil.bin [teh@ShrekII inetutil 68]$ mkimage -x -A ppc -O psos -T kernel -C none -a 0xff800000 -e 0xff800040 -n uImage.psos -d inetutil.bin uImage.psos mkimage: Bad file: "inetutil.bin" has invalid buffer for XIP [teh@ShrekII inetutil 69]$ Any insight is appreciated. Regards, TEH "KokHow Teh" <KokHow.Teh(a)marconi.com>@lists.sourceforge.net on 09/06/2005 10:56:35 AM Sent by: u-boot-users-admin(a)lists.sourceforge.net To: u-boot-users(a)lists.sourceforge.net cc: Subject: [U-Boot-Users] MPC8280 bootm XIP Hi; My initial binary image for MPC8280 has .text begin at 0xff800000 and _START (entry point) at 0xff801004. However, after mkimage, this original memory locations have been offset by 64 bytes. The image is loaded into flash memory at 0xff800000. My question is how, if it is possible that I can execute-in-place my application+psos kernel with bootm from u-boot? Isn't "-a <load address>" of `mkimage` command meaningless in XIP situation? [teh@ShrekII inetutil 59]$ mkimage -A ppc -O psos -T kernel -C none -a 0xff800000 -e 0xff801004 -n uImage.psos -d inetutil.bin uImage.psos Image Name: uImage.psos Created: Wed Sep 7 02:33:00 2005 Image Type: PowerPC pSOS Kernel Image (uncompressed) Data Size: 1002024 Bytes = 978.54 kB = 0.96 MB Load Address: 0xFF800000 Entry Point: 0xFF801004 [teh@ShrekII inetutil 60]$ !cp cp uImage.psos /tftpboot/ [teh@ShrekII inetutil 61]$ u-boot> imi 0xff800000 ## Checking Image at ff800000 ... Image Name: uImage.psos Image Type: PowerPC Unknown OS Kernel Image (uncompressed) Data Size: 1002024 Bytes = 978.5 kB Load Address: ff800000 Entry Point: ff801004 Verifying Checksum ... OK u-boot> bootm 0xff800000 ## Booting image at ff800000 ... Image Name: uImage.psos Image Type: PowerPC Unknown OS Kernel Image (uncompressed) Data Size: 1002024 Bytes = 978.5 kB Load Address: ff800000 Entry Point: ff801004 Verifying Checksum ... OK XIP Kernel Image ... OK NIP: FF801004 XER: 20000000 LR: 01F846D0 REGS: 01af7bb8 TRAP: 0700 DAR: 01F8CE78 MSR: 00083002 EE: 0 PR: 0 FP: 1 ME: 1 IR/DR: 00 GPR00: 00000002 01AF7CA8 FF8A0720 007FFEB0 00000000 00000000 007FFF00 007FFF13 GPR08: 17D78400 01AF800C 01FB1168 F4700088 01FB90D8 000151D8 01FC5000 FF801004 GPR16: 00000001 00000001 FFFFFFFF 007FFF00 01FC0DE8 00000000 00000002 01B78978 GPR24: 00800000 00000000 00000000 00000000 00000000 01AF7F6C 01FC5614 007FFEB0 Call backtrace: 01F84408 01F84268 01F92E30 01F93150 01F933D8 01F94448 01F94638 01F82FB4 01F7CDB8 01F7B494 Program Check Exception Thanks. Regards, TEH ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

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