November 2005 - U-Boot

[U-Boot-Users] U boot modification...
by Kiran Jammula 23 May '12

23 May '12

Hi, I am using U boot for my project. I need to configure the console while booting by prompting the user from target board LCD and Keypad. So please let me know which file of the U-boot I have to modify to achieve this. Kiran _________________________________________________________________ Special offer for NRIs! http://creative.mediaturf.net/creatives/citibankrca/rca_msntagofline.htm Get a zero balance account for next 20 years. From Citibank

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[U-Boot-Users] Ethernet loopback command
by Thomas Schäfer 17 Apr '12

17 Apr '12

Hi, The patch attached provides a command called 'ethloop' which allows to perform loopback testing on the current eth device. To achieve this, a new ethernet packet type (PROT_TEST, 0x0808, AFAIK this is not used otherwise) is introduced in net/net.c. The patch is against SF CVS from 20050307. The functions EthLoopStart, EthLoopSend and EthLoopHandler generate a simple ethernet frame with NetOurEther as destination address and packet type PROT_TEST. The looped back package is compared with the original one and a message is displayed. It is necessary to set the ethernet line into loopback mode either by programming the PHY or using a loopback plug. I've tested this on our PPC405 custom board, but it should also work on all other systems because packet generation is independent of the underlying ethernet hardware. Example usage: => mii w 0 0 7100 <-- sets PHY into loopback mode => ethloop Using ppc_405x_eth0 device Got ethernet loopback frame, len=64 loopback test successfully completed => mii w 0 0 8000 <-- PHY reset after test is completed Maybe this is also useful for others.. Best regards, Thomas Schäfer ____________________________________ Kontron Modular Computers GmbH Konrad-Zuse-Str. 9 66115 Saarbrücken Tel.: + 49 (0)681 / 95916 - 203 Fax: + 49 (0)681 / 95916 - 100 E-mail: thomas.schaefer(a)kontron.com

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[U-Boot-Users] Add a new command to U-Boot
by Carlos Filipe Silva 20 May '09

20 May '09

Hi all! I have one doubt. How can I add a new command to U-Boot? Do I have to use only the macro U_BOOT_CMD() like files .../common/cmd_* or do I have to do more things, like defines, etc.? And after this is compliled with no error, if I type help in U-Boot's shell, do I see this command like the others? Best regards, Carlos Silva

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[U-Boot-Users] how to support usbtty
by zhuzhenhua 31 Aug '08

31 Aug '08

becides set CONFIG_USB_TTY, what other modification need to do for the usbtty support? thanks for any hints

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[U-Boot-Users] u-boot for MPC8548
by Rupesh S 07 Jun '07

07 Jun '07

Hi Does u-boot support any evaluation boards based on the MPC8548 processor ? Thanks in advance -- Rupesh S

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[U-Boot-Users] mtdparts
by Ladislav Michl 29 Oct '06

29 Oct '06

Hi there. I'm just trying to sync with U-Boot development and found a little regresion in new mtdparts code. Previously I was using custom partition function, which let me do precisely what I wanted. mtd0 - U-Boot mtd1 - env mtd2 - r_env mtd3 - rootfs0 mtd4 - rootfs1 ... etc In above scheme my custom part function allowed only chpart [34], so it was not even possible to change partition to evn sector for example. Moreover it was pretty easy to construct kernel command line this way: setenv bootargs '$bootargs root=/dev/mtdblock$partition ro rootfstype=jffs2' And everything worked nicely. That is no longer case and it's real pain with both NOR and NAND devices used in system. Prefered solution for me is to fix kernel to be able to mount root filesystem from MTD device given by name (root=mtd:rootfs0) unless someone has better idea :-). Something which would work also with 2.4 kernels would be appreciated. ladis

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[U-Boot-Users] [PATCH] common.h spelling fix
by Cory T. Tusar 18 Aug '06

18 Aug '06

Attached is a patch fixing a minor spelling goof in common.h. Picky, picky, I know... Patch was generated against a 2005.11.29 CVS pull. CHANGELOG: * Patch by Cory Tusar, 30 Nov 2005: Fixed common.h spelling error. -Cory -- Cory T. Tusar Embedded Systems Engineer Videon Central, Inc. 2171 Sandy Drive State College, PA 16801 (814) 235-1111 x316 (814) 235-1118 fax "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." --Brian W. Kernighan

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[U-Boot-Users] [PATCH] trivial typo fix
by Andreas Engel 18 Aug '06

18 Aug '06

this is not worth mentioning anywhere... Regards, Andreas Engel

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[U-Boot-Users] [PATCH] add-support-for-ps2-keyboard-on-tqm8540-board.patch
by Martin Krause 18 Aug '06

18 Aug '06

Add support for PS/2 keyboard on TQM8540 board Patch by Martin Krause, 07 Nov 2005 This is tested on a STK85XX baseboard. Make sure the PS/2 controller is programmed. Jumper Settings: X66 1-2, 9-10; X61 2-3 Signed-off-by: Martin Krause <martin.krause(a)tqs.de> CHANGELOG: * Add support for PS/2 keyboard on TQM8540 board Patch by Martin Krause, 07 Nov 2005

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Re: [U-Boot-Users] Bug in StrataFlash drivers
by llandre 18 Aug '06

18 Aug '06

>>>Do you have a spoecific test case that shows the presence of the bug? >> >>I experience the problem when trying to store in Flash my ramdisk image >>that is 1502693 bytes. > > > This will probably also happen with smaller size? Yes, I think it will happen with any odd-sized files. >>>And can you please provide a proper patch, with CHANGELOG entry, >>>Signed-off-by line and everything? See attached file. ChangeLog: * Patch by Andrea Marson, 11 November 2005: Fixed odd-sized images writing in Zefeer StrataFlash driver. Signed-off-by: Andrea Marson <r&d2(a)dave-tech.it> Best regards, llandre DAVE Electronics System House - R&D Department web: http://www.dave-tech.it email: r&d2(a)dave-tech.it diff --git a/board/dave/ZefeerEVB/flashmem.c b/board/dave/ZefeerEVB/flashmem.c --- a/board/dave/ZefeerEVB/flashmem.c +++ b/board/dave/ZefeerEVB/flashmem.c @@ -810,12 +810,14 @@ static int flash_write_cfibuffer(flash_i "write to buffer")) == ERR_OK) { switch(info->portwidth) { case FLASH_CFI_8BIT: cnt = len; break; - case FLASH_CFI_16BIT: + case FLASH_CFI_16BIT: cnt = len >> 1; + if (len % 2) + cnt += 1; break; case FLASH_CFI_32BIT: cnt = len >> 2; break; default:

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