November 2003 - U-Boot

[U-Boot-Users] Standalone application problem
by Srikanth Sherman 25 Nov '03

25 Nov '03

Hello, I have an Ebony 440GP development board and as a test, I'm trying to run the hello_world application from the flash. I can run the application without any problems from the SDRAM (ie, "tftpboot 0x40000 hello_world.bin" and then run "go 0x40004"). However, I would like to burn the application into the onboard flash and execute it on powerup. If I copy the .bin to 0xff800000 and then set my bootcmd to "go 0xff80000" everything seems to work OK until I leave the board off for a while in which case the application displays garbage on the screen after U-Boot starts it. There appears to be a problem with some data in 0x40000 load area that isn't there when I power off the board and power it back on. I've also tried converting the hello_world ELF to an .img by using /tools/mkimage and that causes the application to hang right after U-Boot passes control to it. Also, running "bootelf 0x40000" after "tftpboot 0x40000 hello_world" causes an exception. So, in summary: How do I load a stand-alone application .bin onto flash after loading it into RAM? Secondly, how do I load and run "hello_world" (ELF) correctly? I know I'm missing something really basic here! Thanks.

2 1

RE: [U-Boot-Users] Debugging U-Boot on 440GP
by Scott McNutt 25 Nov '03

25 Nov '03

Brian, It's been a while since I tested this, but... > I have a BDI2000 and a custom target board. I am can > successfully connect to it and step through single instructions. > I can also set a breakpoint at _start_440, but any breakpoints > after that do not get noticed. I have the BDI setup for HARD > breakpoints. Should I have it setup for SOFT instead? The debug control/status registers need to be setup. By default the startup code in cpu/ppc4xx/start.S clears the dbcr registers, so debug events are disable. The hw debuggers I've used need an event to establish control. If CFG_INIT_DBCR is defined, the dbcr0 is setup with the macro value (see start.S). To set the macro you can do one of the following: Define CFG_INIT_DBCR in your config header to the value you need. Or, if you copied board/ebony/config.mk for your custom board you can simply: $ touch cpu/ppc4xx/start.S $ make dbcr=1 This defines CFG_INIT_DBCR=0x8cff0000 -- which should give you all events. > What I am seeing is that when I stop the CPU, it's either at 0x700 > or 0x1400 -- both of which are defined in the kgdb.c file, but I don't > know what they mean. Can anyone shed any light on the situation > for me? 0x700 is program check -- bad opcode? ;-) 0x1400 is data tlb exception -- you might want to check your tlbtab to make sure it's correct. Regards, --Scott

1 0

[U-Boot-Users] u-boot on the BDAu1500
by Ed Okerson 24 Nov '03

24 Nov '03

I am having a difficult time getting u-boot to run on the BDAu1500 board from AMD. It appears that there is something missing in the board initialization, but I have not been able to track down what it is. If I start the board with yamon in flash, I can successfully load a u-boot image built to run from ram and run it. If I load u-boot into the flash, built with TEXT_BASE set to 0xbfc00000, which is where the board is supposed to start from in flash, it will not init and run from a power on. I tried following the directions at: http://www.denx.de/twiki/bin/view/DULG/DebuggingUBoot to debug the problem, but it appears that the function cpu_init_f does not exist for mips targets. Are there any C functions before relocation for mips targets? Are there any instructions similar to those in the above web page for mips target debugging? Ed Okerson

2 3

[U-Boot-Users] usb flash disk support
by Laurent Mohin 24 Nov '03

24 Nov '03

Hello, I want ot know if support for USB flash disk is provided in u-boot. When I connect my USB device to my board, then send the usb reset command, my USB device is detected. But when I issue the usb scan command, I obtain an error "not yet implemented" (see below) => usb reset (Re)start USB... USB: scanning bus for devices... 2 USB Devices found => usb tree Device Tree: 1 Hub (12MBit/s, 0mA) | UHCI Root Hub | +-2 Mass Storage (12MBit/s, 100mA) GENERIC USB FLASH DISK 0301270000001 => usb scan Scan for storage device: scanning bus for storage devices... i=0 iVendor 0 iProduct 0 i=1 iVendor 4FC iProduct 5607 USB Mass Storage device detected Transport: USB Starage Transport unknown / not yet implemented i=2 No device found. Not initialized? Laurent MOHIN Acterna

1 0

[U-Boot-Users] Re: Ethernet on PPC Ebony not working ... solved!
by Pavel Bartusek 24 Nov '03

24 Nov '03

Hi, As seems my patch solved the problem, please, Wolfgang can you check it in to the CVS ? regards Pavel -- Pavel Bartusek <pba(a)sysgo.com> Software Engineering SYSGO Real-Time Solutions AG | Embedded and Real-Time Software Lise-Meitner-Str.15 89081 Ulm, Germany Voice: +49-731-9533-1295 FAX: +49-731-94683-10 www.sysgo.com | www.elinos.com | www.osek.de

2 1

[U-Boot-Users] SII IDE and u-boot on MPC8540?
by John Clemens 24 Nov '03

24 Nov '03

This is along shot, I know, but I'm running out of ideas so I figured i'd ask anyway.. So, my questions: - has u-boot IDE ever been made to work with MMAP'd registers? - how does one put a pci ide card into native pci mode, when the prog-if bits don't appear to be correct? - does anyone have any experience doing something similar, or is everyone just using an isa bridge and legacy ports? - please tell me i'm missing something obvious and all walk away in shame :) And now, why i ask.. I'm using an MPC 8540 board and a SII 0680A PCI ide controller.. but I can't get u-boot to talk to the IDE at all... It's almost as if the card is insisting on coming up in "compatability mode" (i.e., listening at ports 0x1f0 and 0x170) instead of "PCI-Native" mode where it should be listening for PCI I/O cycles at PCI BAR0/1. This is a problem because there is no ISA space on this board, just a pci bridge. (that is, if i'm understanding things correctly, which is a big "if" at this point) To make matters worse, the card is one of these cheepo software raid controllers, so it identifies itself as class-code RAID instead of IDE, so I'm not certain if the prog-if bits the ATA spec calls out apply or not (prog-if is all 0, which would mean, via the spec, this chip can't do pci-native mode, which just doesn't make sense.) u-boot maps BAR0-3 at [IO] 0xe8000001, 0xe8000009, 0xe8000011, 0xe8000019. According to the PCI ide controller programming interface document, in pci native mode, these should be the base address of the ATA command blocks and ATA control/dev blocks when the controller is in pci native mode. It also maps BAR5 at [MEM] 0xe0000000. dumping memory at e8000000 reveals nothing interesting (mostly zero). dumping memory at 0xe0000000 does reveal something interesting (it appears to be memory mapped registers, confirmed by the fact the Linux SII driver uses this as its mmio space)), but trying several offsets there has led me nowhere. any help, pointers to docs, anything would be greatly appreciated.. thanks in advance. john.c -- John Clemens http://www.deater.net/john john(a)deater.net ICQ: 7175925, IM: PianoManO8 "I Hate Quotes" -- Samuel L. Clemens

2 3

[U-Boot-Users] Re: Ethernet on PPC Ebony not working ... solved!
by Srikanth Sherman 22 Nov '03

22 Nov '03

> I guess you are using 10MB ethernet. In the 440 is between EMAC and > PHY inserted so called ZMII bridge, which can operate in several modes. > If is in the RMII mode then is necessary to set correct speed in the ZMII > Speed Select Register. Thanks Pavel. This was the problem! Your patch fixed it and now my Ethernet works great. Thanks again.

1 0

RE: [U-Boot-Users] booting U-Boot from dBug?
by Tord Andersson 21 Nov '03

21 Nov '03

Hi, As Wolfgang Denx has pointed out you can use the low boot option when building. Put the binary image on your tftp server and set up dBUG to download the u-boot binary image through tftp with the dn command. Then use the dBug fp command to burn the image to low boot flash An example for a 16Mbyte MPC5200 Lite card: fp FF000000 FF035250 20000 where "FF035250" will have to be adjusted for your image size. "20000" is where the image ends up in RAM after tftp download. I had problems using tftp at 100Mbps but these problems vanished when I put a 10 Mbps hub between the 5200lite and the rest of the net, forcing the ethernet to 10 Mbps, half duplex. Kind regards, Tord > -----Original Message----- > From: Daniel Poirot [mailto:dtpoirot@hotmail.com] > Sent: den 20 november 2003 19:02 > To: u-boot-users(a)lists.sourceforge.net > Subject: [U-Boot-Users] booting U-Boot from dBug? > > > Howdy all, > > Is there a way to load U-Boot from another bootloader? > > I would like to be able to load a development version of > U-Boot from the > Motorola dBug on my MPC5200 board. > > Thanks, > - dan > > _________________________________________________________________ > Groove on the latest from the hot new rock groups! Get > downloads, videos, > and more here. > http://special.msn.com/entertainment/wiredform> usic.armx > > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SF.net Giveback Program. > Does SourceForge.net help you be more productive? Does it > help you create better code? SHARE THE LOVE, and help us > help YOU! Click Here: http://sourceforge.net/donate/ > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users >

1 0

Re: [U-Boot-Users] Ethernet on PPC Ebony not working
by Srikanth Sherman 20 Nov '03

20 Nov '03

>> The IBM monitor program also configures the Ethernet to RMII mode. >> I'm going to try switching to another mode and see if that makes a >> difference. > Do you have a valid MAC address programmed in? Yes, I forgot to mention this before, I setenv'd ethaddr with a valid MAC address.

1 0

[U-Boot-Users] booting U-Boot from dBug?
by Daniel Poirot 20 Nov '03

20 Nov '03

Howdy all, Is there a way to load U-Boot from another bootloader? I would like to be able to load a development version of U-Boot from the Motorola dBug on my MPC5200 board. Thanks, - dan _________________________________________________________________ Groove on the latest from the hot new rock groups! Get downloads, videos, and more here. http://special.msn.com/entertainment/wiredformusic.armx

2 1