May 2004 - U-Boot

[U-Boot-Users] cfi_flash driver: 16bit mode in 16 bit bus (PPC405GP)
by Tolunay Orkun 21 May '04

21 May '04

Brad, In the recent port of Cogent CSB472 which uses an Intel 28F640J3 (16bit bus, 16bit chip), I noticed that after "cp" command finished the flash is not properly returned to read array mode. To work around I issue a protect off 1:0 for now (I use real sector protection). I use the exact same driver which uses 2x Intel 28F128J3 (32bit bus, 16bit chip) Cogent CSB272, I have no such problem. I am using buffered writes in either case... Since I only have one CSB472 and it is put to service in a rush, I did not have opportunity to debug the problem. Did you or anyone else experienced the same issue? Best regards, Tolunay

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[U-Boot-Users] tftp problem
by Martinez Sonia 21 May '04

21 May '04

Hi all, We're using u-boot 1.0.0 to boot Linux on a Lubbock based platform. We've been able to boot Linux from RAM, with JFFS2 and nfsroot too. But we've a problem with tftp. We know that the tftp server works because we've tested it with other clients. But with tftp in u-boot we're only able to transfer little files (1, 2 Kb).. Which can be the problem?? Newer versions work fine?? Thanks in advance Regards, Sonia

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[U-Boot-Users] MPC5200Lite performances!
by Bertrand Baudet 21 May '04

21 May '04

Hi, I'm trying to get good IO throughput for network and IDE with my MPC5200Lite board but for now I only have poor performances. I'm using U-Boot 1.1.1 and the ppc linux kernel from ELDK 3.0. When booting the kernel, it says that the FEC is working in HD mode. Not full duplex! eth0: config: auto-negotiation on, 100HDX, 10HDX When testing the IDE throughput with hdparm 5.5, I'm getting 80MB/s for cache read and 2,3MB/s for non-cache read. I was able to improve the cache read to 160MB/s by restoring, in u-boot, the Wait State configuration that was removed in start.S v1.5 lis r3, 0x00047800@h ori r3, r3, 0x00047800@l stw r3, 0x300(r4) But when trying to enable the DMA for IDE transfer, the kernel returns a lot of DMA errors. In the "drivers/ide/ppc/mpc5xxx_ide.c" file at line 323, there is a comment saying: "Re-enable this code when DMA atually works". That makes me wonder if DMA is working at all for IDE transfer! The linuxppc_2_4_devel tree from cvs.denx.de makes the kernel panic while looking for the partition on the disk... Has anyone got the MPC5200Lite configure to use DMA for IDE transfer? Cheers, Bertrand PS: Is there a place to discuss about the linux kernel on the MPC5200? I checked over at www.denx.de <http://www.denx.de/> , but there is no link for such place.

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RE: [U-Boot-Users] OCOTEA configuration of active ethernet port
by Daren Hayward 21 May '04

21 May '04

I don't know if anyone else has the same in the include/configs/OCOTEA.h, but I had to set the #define CONFIG_ETHADDR2 to #define CONFIG_ETH2ADDR to get the ethernet port to come up, it was the recognised as ethprime -----Original Message----- From: Daren Hayward Sent: 19 May 2004 17:56 To: U-Boot User List Subject: [U-Boot-Users] OCOTEA configuration of active ethernet port Hi, I am trying to use ppc_440x_eth2 (GigE port), I have setenv ethact ppc_440x_eth2 and ethprime to the same but the only port that seems to work is eth0, any guidance would be appreciated Cheers Daren ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ 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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[U-Boot-Users] [PATCH] support nand based environment
by Zhang, Jian 21 May '04

21 May '04

The attached file, env_nand.c, allows storing U-Boot environment data in NAND flash. It is compiled based on CFG_ENV_IS_IN_NAND. You need make the following changes to be able to use it: 1. nand_rw() and nand_erase() in cmd_nand.c need to be made public. 2. env_common.c needs add CFG_ENV_IS_IN_NAND for compile condition. 3. env_nand.o needs to be added to obj list I currently use U-Boot1.02 which is not up-to-date. I guess sending this new file makes merging easier. Regards, Jian

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RE: [U-Boot-Users] (Newbie) MPS8272ADS image layout
by VanBaren, Gerald (AGRE) 20 May '04

20 May '04

> -----Original Message----- > From: wd(a)denx.de [mailto:wd@denx.de] > Sent: Thursday, May 20, 2004 3:51 PM > To: VanBaren, Gerald (AGRE) > Cc: u-boot-users(a)lists.sourceforge.net > Subject: Re: [U-Boot-Users] (Newbie) MPS8272ADS image layout > > > In message > <065ACD8E84315E4394C835E398C8D5EB09224B(a)cossmgmbx02.email.corp > .tld> you wrote: > > > > that there is an option to "low boot", selected via the > HRCW, in which > > case CS0 is mapped to 0x00000000..0x000FFFFF and the reset > vector is at > > 0x00000100 -- u-boot supports this option but it is not > used as often as > > high boot. > > I disagree. At least for the systems I see there are morre systems > using low-boot. > > > Best regards, > > Wolfgang Denk > > -- > Software Engineering: Embedded and Realtime Systems, Embedded Linux > Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd(a)denx.de > : ... and it's got weird formatting - Notepad, Write, Works 3 can't > : decipher it, and it's too big to go in DOS Edit. Help! > Install an operating system. :-) -- Tom Christiansen OK, I'll defer to Wolfgang's considerable experience. With the "low boot" option the HRCW gets programmed properly (inherently) when programming u-boot (i.e. you don't have to do the double-program mess I described in my previous email). Note to Ward Travis [w.travis(a)earthlink.net]: You select the "low boot" option in the HRCR Bit 16 "BMS" (Boot Memory Space). You then want to program your u-boot image at 0xFF800000 (the start of your flash), change any jumpers that need changing (e.g. RSTCONF), and reset the board. U-boot should just run. gvb ****************************************** The information contained in, or attached to, this e-mail, may contain confidential information and is intended solely for the use of the individual or entity to whom they are addressed and may be subject to legal privilege. If you have received this e-mail in error you should notify the sender immediately by reply e-mail, delete the message from your system and notify your system manager. Please do not copy it for any purpose, or disclose its contents to any other person. The views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of the company. The recipient should check this e-mail and any attachments for the presence of viruses. The company accepts no liability for any damage caused, directly or indirectly, by any virus transmitted in this email. ******************************************

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RE: [U-Boot-Users] (Newbie) MPS8272ADS image layout
by VanBaren, Gerald (AGRE) 20 May '04

20 May '04

> -----Original Message----- > From: u-boot-users-admin(a)lists.sourceforge.net > [mailto:u-boot-users-admin@lists.sourceforge.net]On Behalf Of Ward C. > Travis > Sent: Thursday, May 20, 2004 1:59 PM > To: u-boot-users(a)lists.sourceforge.net > Subject: [U-Boot-Users] (Newbie) MPS8272ADS image layout > > > Forgive me if I have overlooked something simple. > > I have compiled u-boot using 'config_MPC8272ADS' and, > following Wolfgang's advice, modified as little as possible. > I accepted all the defaults, providing no overrides on the make line. > > Looking at he .srec file, it appears that the image is to be > loaded at 0xfff00000 . The configuration words are based > there and _start is placed beyond them, at the image + 0x0100 . > > The ADS board I am working with has the standard 8MB flash > SIMM, which when the board boots from flash is mapped > beginning at 0xff800000. > > I am unclear on how the MPC8272 reset vectors the PC to > 0xfff00100. Perhaps the simple question is, should the image > be loaded into flash at some other address? My flash is clear > - it is a rented board - and so there is no previous loader > or configuration words in flash; hence I must boot from > EEPROM and download the code (with Metrowerks, via parallel) > while flash is remapped for EEPROM boot. I currently am > experimenting with programming the image at various offsets > from the beginning of flash. But once I reconfigure to boot > from flash and power-cycle, of course, I see no sign of activity. > > Thanks for any advice, > -wt You need to understand the standard PowerPC memory map, booting: the PowerPC (MPC8272 User's Manual, 603e User's Manual) are your references on this. * On release from reset, the PowerPC fetches the Hardware Reset Config Word (HRCW) from the first 32 bytes of memory. You need a valid HRCW for the PPC to run. You may already have one, but probably not if your flash is zeroed. (I believe the MPC8272ADS has an option to use a CPLD to supply the HRCW. You can also strap RESETCFG to use a default HRCW to allow you to get the real one in flash.) * On release from reset, the PPC sets BR0/OR0 to map the top 16MB of memory to CS0. This will make your flash appear (twice, since it is 8MB) at 0xff000000..ffffffff. The PowerPC then starts executing at offset 0xfff00100 (the reset vector, which is in the top 1MB of flash). Note that there is an option to "low boot", selected via the HRCW, in which case CS0 is mapped to 0x00000000..0x000FFFFF and the reset vector is at 0x00000100 -- u-boot supports this option but it is not used as often as high boot. You need to program your HRCW (the first 32 bytes of your u-boot image) at the start of your flash. You need u-boot itself (which can include the first 256 bytes with no harm) needs to be programmed in the last 1MB of your flash. Your text indicated that, when you are programming it, your flash is mapped to 0xff800000..ffffffff. You want to program the u-boot image there (0xff800000) to get the HRCW in the first bytes of flash and program it AGAIN at 0xfff00000 to get the executable portion of u-boot in the right place. (The first copy will have the executable portion in the wrong place and the second copy will have the HRCW in the wrong place -- don't worry about that, it is non-fatal. You can fix it when you get your board running and have time to become more sophisticated.) After doing this, a reset should bring u-boot to life. gvb ****************************************** The information contained in, or attached to, this e-mail, may contain confidential information and is intended solely for the use of the individual or entity to whom they are addressed and may be subject to legal privilege. If you have received this e-mail in error you should notify the sender immediately by reply e-mail, delete the message from your system and notify your system manager. Please do not copy it for any purpose, or disclose its contents to any other person. The views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of the company. The recipient should check this e-mail and any attachments for the presence of viruses. The company accepts no liability for any damage caused, directly or indirectly, by any virus transmitted in this email. ******************************************

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RE: [U-Boot-Users] (Newbie) MPS8272ADS image layout
by Rune Torgersen 20 May '04

20 May '04

> Looking at he .srec file, it appears that the image is to be > loaded at 0xfff00000 . The configuration words are based > there and _start is placed beyond them, at the image + 0x0100 . > > The ADS board I am working with has the standard 8MB flash > SIMM, which when the board boots from flash is mapped > beginning at 0xff800000. The flash is mapped to 0xff800000 but the CPU starts executing at 0xfff00100 (reset vector) 0xfff000000 contains the Hardware Configuration word. The HRCW is what decides the reset vector address, and ont eh motorola ADS boards, theis is eityher feced from FLASH, or from a PLD, depening om a board jumper/switch. Flash the image at an offset so that when booting from FLASH SIMM, the image is located at 0xfff00000 (When booting from EEPROM, find out the SIMM flash base address, and program at an offset of 0x00700000 into it)

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[U-Boot-Users] Unable to mount root fs
by Petre Pircalabu 20 May '04

20 May '04

Hello, Does anyone have a suggestion about this error? I got the same error in the following cases: no initrd image in flash ( command : bootm 0x40000) multifile containing both kernel and initrd ( command : bootm 0x40000) compressed kernel uImage at 0x4000 and compressed initrd image at 0x120000 ( command : bootm 0x40000 0x120000) compressed kernel uImage at 0x4000 and uncompressed initrd image at 0x120000 ( command : bootm 0x40000 0x120000) Starting kernel ... Linux version 2.4.19-rmk7-pxa2 (root(a)localhost.localdomain) (gcc version 3.2.1) #1 Wed May 19 14:58:50 EEST 2004 CPU: XScale-PXA255 revision 6 Machine: Biosafe Memory clock: 99.53MHz (*27) Run Mode clock: 199.07MHz (*2) Turbo Mode clock: 199.07MHz (*1.0, inactive) On node 0 totalpages: 16384 zone(0): 16384 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: console=ttyS0,19200 root=/dev/ram Calibrating delay loop... 198.65 BogoMIPS Memory: 64MB = 64MB total Memory: 63988KB available (576K code, 190K data, 36K init) Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) Inode cache hash table entries: 4096 (order: 3, 32768 bytes) Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) Page-cache hash table entries: 16384 (order: 4, 65536 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Starting kswapd pty: 256 Unix98 ptys configured Serial driver version 5.05c (2001-07-08) with no serial options enabled ttyS00 at 0x0000 (irq = 15) is a PXA UART ttyS01 at 0x0000 (irq = 14) is a PXA UART ttyS02 at 0x0000 (irq = 13) is a PXA UART NetWinder Floating Point Emulator V0.95 (c) 1998-1999 Rebel.com Kernel panic: VFS: Unable to mount root fs on 01:00

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Re: [U-Boot-Users] newbie question, about setting linux_cmd_line
by Sam Song 20 May '04

20 May '04

"Wangfeng Ai" <beatit(a)hotmail.com> wrote: > I am new to u-boot, I just don't know how to > change linux command line > under u-boot shell. Would you recommend some > readings about how to use > u-boot? Pls read DULG.It's a good doc for you to understand and use U-BOOT. http://www.denx.de/twiki/bin/view/DULG/Manual For changing linux command,you could refer to: http://www.denx.de/twiki/bin/view/DULG/LinuxBootArgs _________________________________________________________ Do You Yahoo!? 嫌邮箱太小？雅虎电邮自助扩容！ http://cn.rd.yahoo.com/mail_cn/tag/10m/*http://cn.mail.yahoo.com/event/10m.…

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