June 2005 - U-Boot

[U-Boot-Users] mkimage
by KokHow Teh 28 Jun '05

28 Jun '05

Hi; I am new to mkimage. I have an image with an entry at 0x00100004. I `mkimage` it with the following details: [teh@ShrekII tftpboot 75]$ mkimage -l uImage Image Name: psos Created: Tue Jun 28 17:53:24 2005 Image Type: PowerPC pSOS Kernel Image (uncompressed) Data Size: 593268 Bytes = 579.36 kB = 0.57 MB Load Address: 0x00100000 Entry Point: 0x00100004 [teh@ShrekII tftpboot 76]$ Then I `tftp` it into my target, examine the memory contents. u-boot> tftp 100000 uImage Using FCC2 ETHERNET device TFTP from server 147.128.28.42; our IP address is 147.128.28.44 Filename 'uImage'. Load address: 0x100000 Loading: ################################################################# ################################################### done Bytes transferred = 593332 (90db4 hex) u-boot> md 100000 00100000: 27051956 ba54f4c3 42c11e14 00090d74 '..V.T..B......t 00100010: 00100000 00100004 040da48f 0f070200 ................ 00100020: 70736f73 00000000 00000000 00000000 psos............ 00100030: 00000000 00000000 00000000 00000000 ................ 00100040: 7c631b78 7c631b78 3c400019 3842b234 |c.x|c.x<@..8B.4 00100050: 3da0001a 39ad8d50 7c6000a6 5463045e =...9..P|`..Tc.^ 00100070: 3c400019 3842b234 3da0001a 39ad8d50 <@..8B.4=...9..P 00100080: 4e800020 80430000 81a30004 4e800020 N.. .C......N.. 00100090: 00100470 7d6802a6 91610004 44000002 ...p}h...a..D... 001000a0: 4e800020 28030000 40820008 48022c3c N.. (...@...H.,< 001000b0: 7d6324aa 7d635b78 48022c30 38000001 }c$.}c[xH.,08... 001000c0: 4bffffe4 38000002 4bffffdc 60842000 K...8...K...`. . 001000d0: 38000003 48022c14 38000004 48022c0c 8...H.,.8...H.,. 001000e0: 38000005 48022c04 38000006 48022bfc 8...H.,.8...H.+. 001000f0: 38000007 48022bf4 38000008 48022bec 8...H.+.8...H.+. u-boot> imi ## Checking Image at 00100000 ... Image Name: psos Image Type: PowerPC Unknown OS Kernel Image (uncompressed) Data Size: 593268 Bytes = 579.4 kB Load Address: 00100000 Entry Point: 00100004 Verifying Checksum ... OK u-boot> Content of my original executable image: hello: file format elf32-powerpc Disassembly of section .DAE_exp: Disassembly of section .IAE_exp: Disassembly of section .RST_exp: Disassembly of section .text: 00100000 <_START-0x4>: 100000: 7c 63 1b 78 mr r3,r3 00100004 <_START>: 100004: 7c 63 1b 78 mr r3,r3 100008: 3c 40 00 19 lis r2,25 10000c: 38 42 b2 34 addi r2,r2,-19916 100010: 3d a0 00 1a lis r13,26 100014: 39 ad 8d 50 addi r13,r13,-29360 100018: 7c 60 00 a6 mfmsr r3 10001c: 54 63 04 5e rlwinm r3,r3,0,17,15 100020: 7c 60 01 24 mtmsr r3 100024: 48 00 64 3c b 106460 <HdwInit> <snip> It crashes when I `bootm 100000`. Here is my question. The original ELF executable image has the entry point at 0x00100004. After `mkimage` and having examined the content of the memory, I find out that the content which were at the original entry point has been shifted to 0x00100040. Would that be the cause of the crash? I assume that the "-e" option to mkimage is the entry point of the original executable which is 0x00100004? Any comment is appreciated. Regards, TEH

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[U-Boot-Users] question : difference between booting 2.4 and 2.6 kernel
by Tomko 28 Jun '05

28 Jun '05

Hi all, I would like to modify the uboot so that it could boot up 2.4 and 2.6 kernel without downloading the u boot again . what i know the difference is : 2.6 kernel know how to copy itself to memory but 2.4 do not and need bootloader to do it. Am i right ? How can i do this inorder to make it more convinent ? Regards, TOM

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[U-Boot-Users] invalid option 'short-load-bytes'
by Shakthi Kannan 28 Jun '05

28 Jun '05

Greetings! I am trying to cross-compile u-boot-1.1.2 for ARM Versatile Board ARM926EJ-S using cross-toolchain 3.4.2. I am getting the following error: cc1: error: invalid option 'short-load-bytes' cc1: error: invalid option 'apcs-32' It compiles fine with cross-toolchain 2.95.3. Any suggestions? Since it is mentioned here, http://www.arm.com/linux/prebuilt_download.html, that 3.4.2 has been used to compile u-boot, we would like to use the same for cross-compilation. Also, the ethernet is not enabled or detected on power up on this board. I have compiled in support for the SMC ethernet in u-boot-1.1.1, but, u-boot doesn't seem to be able to detect it. I'd appreciate any suggestions for the above. Thanks, K Shakthi -- proudly anti-micro$oft ------------------------------------------------------------ Shakthi Kannan, MS Software Engineer, Specsoft (Hexaware Technologies) [E]: shaks(a)shakthimaan.com [M]: (91) 98407-87007 [W]: http://www.shakthimaan.com [L]: Chennai, India ------------------------------------------------------------ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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[U-Boot-Users] fin sock
by winnie 28 Jun '05

28 Jun '05

Dea Sirs: We are a manufacturer in China Our new Products:Fin Sock (see the attached) The price:USD2.00/pr The materials:1mm Neoprene Thanks, winnie

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[U-Boot-Users] [Newbie] MPC8280 FCC internal loopback test
by Srivatsan CR 27 Jun '05

27 Jun '05

Dear all, We are having a MPC8280 based Rattler board with ethernet configured on FCC1. We are writing some POST tests for the board. For Ethernet we thought of running an internal loopback test. We took the eth_loopback_test() in ether_fcc.c as the template and did the necessary modification(s) majorly it was to change the mode register. We are able to see that the initialization of FCC1 is happening properly. But the result printed always says that the transmitted packet is 0 and received packet is 0. Is there something we are missing ? Expecting your help. With Thanks and Best Regards, C.R.Srivatsan

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[U-Boot-Users] AMCC 440EP support
by Philippe Villet 27 Jun '05

27 Jun '05

I've got some troubles to use dcache for stack initialisation in ppc4xx/start.S for 440EP (no On Chip Memory available) ; Does anyone succeded in modifying this file for 440EP . More generally, i'would like to know if someone whish to check in 440EP support in U-Boot tree. Thanks. Philippe.

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[U-Boot-Users] the definition of CONFIG_NET_MULTI
by KingBBS 27 Jun '05

27 Jun '05

hi all, I'm a newbie of u-boot. Anyone please tell me a clear definition of CONFIG_NET_MULTI? I cant find it in README/CHANGELOG. Regards, KingBBS mailto:kingbbs@gmail.com

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Re: [U-Boot-Users] generating a u-boot Linux image for PXA255
by Wolfgang Denk 24 Jun '05

24 Jun '05

In message <MPEAJFOFNNOAIMOHBACIGECIEBAA.gl4jalopi(a)earthlink.net> you wrote: > Sorry, I searched and didn't find any. I found a mkimage line added to a > ppc make file for the 'cray' development board, but nothing for an arm > target. Please learn to quote properly. Don't top-post/full-quote. What is so difficult about finding boards with PXA255? Trivial approach: -> grep PXA255 include/configs/* include/configs/pleb2.h:#define CONFIG_PXA250 1 /* This is an PXA255 CPU */ include/configs/xaeniax.h:#define CONFIG_PXA250 1 /* This is an PXA255 CPU */ There you go... 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 I mean, I . . . think to understand you, I just don't know what you are saying ... - Terry Pratchett, _Soul Music_

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[U-Boot-Users] 440GX enet bridge init
by Neil Wilson 24 Jun '05

24 Jun '05

While getting one of our boards running I noticed that in u-boot/cpu/ppc4x/440gx_enet.c that the case 2 of ppc_440x_eth_setup_bridge resets the value of zmiifer each time, I believe this should be an OR as in the other cases. I would have provided a patch but am in mid flow of porting the code. Cheers. Neil -- Neil Wilson Principal Engineer, Embedded Software Airspan Communications Ltd. Cambridge House, Oxford Road, Uxbridge, Middx, UB8 1UN, UK. Tel: +44(0)1895-467265 neilwilson(a)airspan.com www.airspan.com

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[U-Boot-Users] generating a u-boot Linux image for PXA255
by Greg Lindberg 24 Jun '05

24 Jun '05

Does anybody have a script that they'd be willing to share for running mkimage on a Linux kernel for an Intel PXA255. I'm just getting started with u-boot and I'm not sure of all of the parameters for mkimage for the PXA255. Any help would be appreciated. Greg Secrecy, being an instrument of conspiracy, ought never to be the system of a regular government. -Jeremy Bentham, jurist and philosopher (1748-1832)

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