February 2004 - U-Boot

[U-Boot-Users] Crash at the beginning of board_init_f
by Cai Frank-LFC008 05 Feb '04

05 Feb '04

Hi, I am porting a u-boot to a PPC8250 board. My code runs OK inside flash. Also runs OK from SDRAM after the code relocation from flash to SDRAM for the whole section of assemble code (in_ram). But it crashs at the beginning of board_init_f ( The entry point of C code in SDRAM). It seems C environment get crashed. What may cause this type of crash? Can somebody provide some clue? Thanks, Frank

2 1

[U-Boot-Users] Updates to u-boot
by Stephen Williams 04 Feb '04

04 Feb '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 What's the best way to get new support added into the u-boot source tree? I have fat on my SystemACE chip working, and would like to get it into the main branch. Should I send patches to the list, or to a specific person? Also, I'm porting to a new PPC board we're developing. I'm fine with adding the board support files for that board to the source tree as well, but we're not talking about a high volume board here. What's the word on adding vendor/board specific code to the tree? - -- Steve Williams "The woods are lovely, dark and deep. steve at icarus.com But I have promises to keep, http://www.icarus.com and lines to code before I sleep, http://www.picturel.com And lines to code before I sleep." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFAIVRerPt1Sc2b3ikRAlr/AKCx0j5GV9DYMhfh8YSEEYZJaq1XWwCg7WMq 3AMUKmb5uw5aza07HDbT5oY= =ZSHV -----END PGP SIGNATURE-----

2 1

RE: [U-Boot-Users] Can't get ide to work
by Jerry Walden 04 Feb '04

04 Feb '04

Thanks for the response. Okay - I found the TLB mapping for CFG_PCMCIA_MEM_ADDR (0x20000000), however the IDE device is at AU1X_SOCK0_IO (0xF00000000). True - the PCMCIA is at 0x20000000, however not the ide device. If I look at the YAMON source - there is a mapping done for 0xF00000000. I don't see it in u-boot. Where am I going wrong? Thanks -----Original Message----- From: Thomas Lange [mailto:thomas@corelatus.se] Sent: Tuesday, February 03, 2004 1:29 PM To: Jerry Walden Cc: u-boot-users(a)lists.sourceforge.net Subject: Re: [U-Boot-Users] Can't get ide to work TLB is created in board/dbau1x00/dbau1x00.c Could be an endian problem, i.e. you read the wrong byte. /Thomas Jerry Walden wrote: > Our board is based on the Alchemy DBAu1500 > > We are using a compact flash card that as an IDE drive (tied into the > IDE interface of the CPU just like the DBAu1500). > > During ide_init, the ATA_STATUS byte is read, and there is a wait loop > which waits for the status to be ready. This loop always times out. > I am trying to debug this. Tracing through ide_inb, and ide_outb, the > address of the interface is fine CFG_PCMCIA_MEM_ADDR (0x20000000). I > know that there has to be some TLB mapping between CFG_PCMCIA_MEM_ADDR > (0x20000000) and AU1X_SOCK0_IO > (F00000000) - I just cannot find where this is done. > > Any suggestions? > > Thanks

2 1

[U-Boot-Users] Read-only Root FS HOWTO
by Bob White 04 Feb '04

04 Feb '04

I've searched the web and the mailing list and I can't find a definitive Read-only Root FS HOWTO. Does anyone have a well defined process for this they'd like to share? Bob -- Robert B. White Perigee, A Division of Sensis Corp Software Design Engr 316 Commerce Blvd. TEL: 315.453.7842x29 Liverpool, NY 13088 FAX: 315.453.7917 www.Perigee.com

1 0

[U-Boot-Users] u-boot.h/bd_t missing fields needed by Linux IBM IIC I2C Interface Driver
by listmember＠orkun.us 04 Feb '04

04 Feb '04

(sorry for multiple post, it got sent prematurely before I was finished. Please reply to this one) I have a port of u-boot for csb272 (based on PPC405GP) and I got linux booting on it :) For linux, I used "linuxppc-2.4" cvs tree (2.4.24-pre4) but I had to change csb272.h to include <asm/ppcboot.h> instead of the bd_t definition that was in csb272.h. I think the default csb272.h bt_t was setup to boot Linux from Micromonitor which is default monitor program as shipped from Cogent. According to u-boot documentation u-boot.h board info structure is backwards compatible with ppcboot one so it made sense for me to include ppcboot.h (which was already there as checked out) instead of manually copying the structure. Now, I am trying to get I2C working on Linux. The following is from Linux .config file: # # I2C support # CONFIG_I2C=y # CONFIG_I2C_ALGOBIT is not set # CONFIG_SCx200_ACB is not set # CONFIG_I2C_ALGOPCF is not set CONFIG_I2C_IBM_IIC=y CONFIG_I2C_CHARDEV=y CONFIG_I2C_PROC=y However while compiling i2c_ibm_iic.c, the compiler gives error on some fields missing from bt_t. Namely, bi_iic_fast bi_opb_busfreq How, should I proceed? Should I add these to u-boot.ini and copy updated u-boot.h to include/asm/ppc directory (where ppcboot.h resides) and include u-boot.h in csb272.h instead of ppcboot.h? Should I look into another I2C driver that does not use these fields? Best regards, Tolunay

3 6

[U-Boot-Users] Design question
by Stephen Williams 03 Feb '04

03 Feb '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm porting to a board that has a Xilinx SystemACE hanging off the local bus (CS#1) of a PPC405GPr. Looks fairly easy to write a driver that can be presented to the FAT filesystem support. This'll give me the ability to pick and choose the image I want to boot on the inserted CompactFlash card. My question is a matter of integration. Should I create a new cmd_ace and some ace commands (a la cmd_ide for IDE drives) and plug that into the cmd_fat.c file the same way the other peripheral bus devices are handled? I think it makes sense, and that's what I'm going to do. Am I nuts? - -- Steve Williams "The woods are lovely, dark and deep. steve at icarus.com But I have promises to keep, http://www.icarus.com and lines to code before I sleep, http://www.picturel.com And lines to code before I sleep." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFAHza5rPt1Sc2b3ikRAu8dAJ4okisImQP1veH7Nnu8XMzVN8wAFgCcC6wE 96v97oZYEknHkjmC8jFOx2w= =bQSe -----END PGP SIGNATURE-----

2 1

[U-Boot-Users] Can't get ide to work
by Jerry Walden 03 Feb '04

03 Feb '04

Our board is based on the Alchemy DBAu1500 We are using a compact flash card that as an IDE drive (tied into the IDE interface of the CPU just like the DBAu1500). During ide_init, the ATA_STATUS byte is read, and there is a wait loop which waits for the status to be ready. This loop always times out. I am trying to debug this. Tracing through ide_inb, and ide_outb, the address of the interface is fine CFG_PCMCIA_MEM_ADDR (0x20000000). I know that there has to be some TLB mapping between CFG_PCMCIA_MEM_ADDR (0x20000000) and AU1X_SOCK0_IO (F00000000) - I just cannot find where this is done. Any suggestions? Thanks

2 1

[U-Boot-Users] Can't get ide to work
by Jerry Walden 03 Feb '04

03 Feb '04

Our board is based on the Alchemy DBAu1500 We are using a compact flash card that as an IDE drive (tied into the IDE interface of the CPU just like the DBAu1500). During ide_init, the ATA_STATUS byte is read, and there is a wait loop which waits for the status to be ready. This loop always times out. I am trying to debug this. Tracing through ide_inb, and ide_outb, the address of the interface is fine CFG_PCMCIA_MEM_ADDR (0x20000000). I know that there has to be some TLB mapping between CFG_PCMCIA_MEM_ADDR (0x20000000) and AU1X_SOCK0_IO (F00000000) - I just cannot find where this is done. Any suggestions? Thanks

1 0

RE: [U-Boot-Users] ELDK 2.2.0 (patched 2.1.0) doesn't install on Gentoo
by Jonas Mark-r50740 03 Feb '04

03 Feb '04

Paul, sadly I am really sure that I patched it because I had a 2.1.0 CD which did not install on a SuSE 8.2 system. Then I patched the CD to 2.2.0 using the patch you are mentioned. Then it installed just fine. Now I didn't even change the physical CD and it does not work. On the my ELDK 2.1.0 CD tools/bin/rpm has a size of 1652016. On my 2.2.0 CD tools/bin/rpm has a size of 2086912. That should at least proof that I exchanged rpm while patching. Additionally, I just tried to install ELDK from my 2.1.0 CD on a SuSE 8.2 box. It crashes. I tried it with my 2.2.0 CD. It works. I really wonder how my Gentoo system differs from yours. Regards Mark

1 0

[U-Boot-Users] u-boot.h/bd_t
by Tolunay Orkun 03 Feb '04

03 Feb '04

I have a port of u-boot for csb272 and I got linux booting on it :) For linux, I used "linuxppc-2.4" cvs tree (2.4.24-pre4) but I had to change csb272.h to include <asm/ppcboot.h> instead of the bd_t definition that was in csb272.h. I think the default csb272.h bt_t was setup to boot Linux from Micromonitor which is default monitor program as shipped from Cogent. According to u-boot documentation u-boot.h board info structure is backwards compatible with ppcboot one so it made sense for me to include ppcboot.h (which was already there as checked out) instead of manually copying the structure. Now, I am trying to get I2C working on Linux. The following is from Linux .config file: # # I2C support # CONFIG_I2C=y # CONFIG_I2C_ALGOBIT is not set # CONFIG_SCx200_ACB is not set # CONFIG_I2C_ALGOPCF is not set CONFIG_I2C_IBM_IIC=y CONFIG_I2C_CHARDEV=y CONFIG_I2C_PROC=y However while compiling i2c_ibm_iic.c, the compiler gives error on some fields missing from bt_t. Namely, bi_iic_fast bi_opb_busfreq

1 0

[U-Boot-Users] u-boot.h/bd_t
by Tolunay Orkun 03 Feb '04

03 Feb '04

I have a port of u-boot for csb272 and I got linux booting on it :) For linux, I used "linuxppc-2.4" cvs tree (2.4.24-pre4) but I had to change csb272.h to include <asm/ppcboot.h> instead of the bd_t definition that was in csb272.h. I think the default csb272.h bt_t was setup to boot Linux from Micromonitor which is default monitor program as shipped from Cogent. According to u-boot documentation u-boot.h board info structure is backwards compatible with ppcboot one so it made sense for me to include ppcboot.h (which was already there as checked out) instead of manually copying the structure. Now, I am trying to get I2C working on Linux. The following is from Linux .config file: # # I2C support # CONFIG_I2C=y # CONFIG_I2C_ALGOBIT is not set # CONFIG_SCx200_ACB is not set # CONFIG_I2C_ALGOPCF is not set CONFIG_I2C_IBM_IIC=y CONFIG_I2C_CHARDEV=y CONFIG_I2C_PROC=y However while compiling i2c_ibm_iic.c, the compiler gives error on some fields missing from bt_t. Namely, bi_iic_fast bi_opb_busfreq

1 0

[U-Boot-Users] Patch for config_serial_software_fifo
by Stephen Williams 03 Feb '04

03 Feb '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 It turns out if you define CONFIG_SERIAL_SOFTWARE_FIFO that the call to serial_buffered_init() is lib_ppc/board.c, even though the implementation is compiled out elsewhere. The following batch fixes this case, assuming I understand the situation correctly. This matches the useage of the macro in the cpu/ppc4xx/serial.c file. * Don't call serial_buffered_init() is CONFIG_SERIAL_SOFTWARE_FIFO ~ is defined to be 0. - --- u-boot-1.0.0/lib_ppc/board.c 2003-10-15 16:53:59.000000000 -0700 +++ u-boot-1.0.0-devel/lib_ppc/board.c 2004-01-01 16:21:47.000000000 -0800 @@ -835,7 +835,7 @@ void board_init_r (gd_t *id, ulong dest_ ~ /* Must happen after interrupts are initialized since ~ * an irq handler gets installed ~ */ - -#ifdef CONFIG_SERIAL_SOFTWARE_FIFO +#if CONFIG_SERIAL_SOFTWARE_FIFO ~ serial_buffered_init(); ~ #endif - -- Steve Williams "The woods are lovely, dark and deep. steve at icarus.com But I have promises to keep, http://www.icarus.com and lines to code before I sleep, http://www.picturel.com And lines to code before I sleep." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFAHuOZrPt1Sc2b3ikRAtXPAKDZPTOWlYsbQo6+3Mu8elOfR/fsYACePdOq mkx1o6rhRrl0M0111CRRvwU= =kNvq -----END PGP SIGNATURE-----

1 0

[U-Boot-Users] Help w/ U-Boot vs/ ppc405GPr MAL
by Stephen Williams 02 Feb '04

02 Feb '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm porting U-Boot to a PPC405GPr board of our own design, and I'm having trouble getting the ethernet working. Specifically, when I try to do anything network related, it hangs in ppc_4xx_eth_init. I added some test prints and find that I'm getting an un-clearable error interrupt. I've added some test prints to dump the obvious registers, here's a snippet: XXXX Entering ppc_4xx_eth_init ENET Speed is 10 Mbps - HALF duplex connection XXXX about to enable interrupts... MAL error occured.... ISR = 0 UIC = 7f0000 MAL_DEF = 2e0000 MAL_ERR= 260000 XXXX Entering ppc_4xx_eth_init XXXX about to enable interrupts... XXXX Leaving ppc_4xx_eth_init MAL error occured.... ISR = 0 UIC = 7f0000 MAL_DEF = 2e0000 MAL_ERR= 260000 XXXX Entering ppc_4xx_eth_init XXXX about to enable interrupts... XXXX Leaving ppc_4xx_eth_init ... and so on. It is looping infinitely on the un-cleared error interrupt. I'm struggling w/ PHY/MII/MAL learning curves, as well as U-Boot learning, so clues welcome. - -- Steve Williams "The woods are lovely, dark and deep. steve at icarus.com But I have promises to keep, http://www.icarus.com and lines to code before I sleep, http://www.picturel.com And lines to code before I sleep." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFAHsKLrPt1Sc2b3ikRAtXDAJ4qsMmJrxGx4RmZkHP6ia7YgUnYZwCfZmFo EoS+6IDcrpey6NqR3A+vVaA= =WXm/ -----END PGP SIGNATURE-----

1 0

[U-Boot-Users] U-boot and booting linux image from IDE device
by Jerry Walden 02 Feb '04

02 Feb '04

Hi - it appears as u-boot is working great for our board! I have been doing tftp boots, and in a past project I used bootm because that board did not have an IDE device. I read the README on installing Linux, and cannot find a section on how to get u-boot to boot from an IDE device/ Is it possible for u-boot to boot from an IDE device? If so - is the target the same as the target built my "make uImage"? How is the IDE device setup (i.e. partitions, and location of kernel etc...) Thanks!

2 1

[U-Boot-Users] ELDK 2.2.0 (patched 2.1.0) doesn't install on Gentoo
by Jonas Mark-r50740 02 Feb '04

02 Feb '04

Hello, I'm trying to install the ELDK 2.2.0 (i.e. a patched 2.1.0) on a Gentoo 1.4 system. To do so I prepared a CD as described on www.denx.de. I already used the CD on two SuSE 8.2 systems with no problems. On the Gentoo system the installation starts just fine but suddenly stops without an error message. -- # ./install -d /opt/eldk-2.2.0 ppc_82xx Do you really want to install into /opt/eldk-2.2.0 directory[y/n]?: y Creating directories Done Installing cross RPMs Preparing... ################################################## [100%] # -- I attached a strace of what the installer is doing. Maybe somebody has an idea what is going wrong and how to work around. TIA Mark Jonas

1 0

Re: [U-Boot-Users] Is ramdisk a must or not?
by Wolfgang Denk 02 Feb '04

02 Feb '04

Dear Sam, in message <20040202155834.49092.qmail(a)web15202.mail.bjs.yahoo.com> you wrote: > > Thanks for your nice reply. You are welcome. > It seems that ramdisk only support EXT2 file system.At > least,the examples always take it for demo. Well, this is just because ext2 is the de-facto default filesystem for Linux. You can use any other filesystem on your ramdisk image as well, as long as it permits to hold all relevant files (for example, you cannot create any device nodes in a MSDOS / VFAT filesystem). In many examples I have seen a minix filesystem was used - this makes sense, as the minix filesystem allows for a smaller kernel size. Best regards, Wolfgang Denk -- See us @ Embedded World, Nuremberg, Feb 17 - 19, Hall 12.0 Booth 440 Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd(a)denx.de Common sense and a sense of humor are the same thing, moving at different speeds. A sense of humor is just common sense, dancing. - Clive James

1 0

Re: [U-Boot-Users] Is ramdisk a must or not?
by Sam Song 02 Feb '04

02 Feb '04

Dear Mr. Wolfgang, You worte: > It is definitely NOT a must. There are many ways > where to put the root filesystem. The ramdisk > may be one of the most simple ways to get started, > but there are very few projects where it is the > optimal solution. Thanks for your nice reply. > In general, using a ramdisk is NOT optimal. It seems that ramdisk only support EXT2 file system.At least,the examples always take it for demo. Thanks for your notes again! Best regards, Sam _________________________________________________________ Do You Yahoo!? 完全免费的雅虎电邮，马上注册获赠额外60兆网络存储空间 http://cn.rd.yahoo.com/mail_cn/tag/?http://cn.mail.yahoo.com

1 0

[U-Boot-Users] Is ramdisk a must or not?
by Sam Song 02 Feb '04

02 Feb '04

Hi, I cannot figure out some basic questions on ramdisk by reading ramdisk & initrd documents in linux tree and linux-ppc maillist.For the sake of more detailed explanation on ramdisk from DULG and this maillist,I post the topic here for some help.Sorry for bothering you all. 1.Is ramdisk a must or not for embedded application?In URL http://www.redhat.com/docs/manuals/linux/RHL-7.3-Manual/custom-guide/s1-cus… and some web pages,they say an initrd image is needed for loading your SCSI module at boot time.So if I didn't use SCSI module,I would save the initrd image.Is that so? 2.What advantage does ramdisk have?In which situation should we use it? 3.After programming SELF 8xx image(from ftp.denx.de) to flash on lite_dw,u-boot+kernel+ramdisk worked fine on LCD panel(Thanks wolfgang providing such a workable ramdisk).It displayed "Application running".What does application refer to?Busybox or ramdisk itself?If I want to make my added application in ramdisk run automatically,how should I do? Any advice is appreciated! Best regards, Sam _________________________________________________________ Do You Yahoo!? 完全免费的雅虎电邮，马上注册获赠额外60兆网络存储空间 http://cn.rd.yahoo.com/mail_cn/tag/?http://cn.mail.yahoo.com

3 3

[U-Boot-Users] [PATCH] 4/7 Nios: new CPU configuration / support at DK1S10 (Microtronix LDK 2.0)
by Stephan Linz 02 Feb '04

02 Feb '04

------------------ THIS IS PATCH 4/7 ------------------ * Patch by Stephan Linz, 30 Jan 2004 - Add support for the Microtronix Linux Development Kit NIOS CPU configuration at the Altera Nios Development Kit, Stratix Edition (DK-1S10)

1 0

[U-Boot-Users] Bootloader?
by Deya 02 Feb '04

02 Feb '04

Hi, I am working on PXA255 based one. If I have to use M-systems diskonchip millennium plus as boot device instead of intel's flash memory, does u-boot support booting from DOCMP? Please tell me if I can proceed with u-boot or should I look for something else? Give me a suggestion please. Regards, Deya. ________________________________________________________________________ Yahoo! India Mobile: Download the latest polyphonic ringtones. Go to http://in.mobile.yahoo.com

1 0

[U-Boot-Users] software watchdog on the MPC855T
by Rod Boyce 01 Feb '04

01 Feb '04

All, I have having a bit of a problem with the software watchdog on the MPC855T CPU. When the watchdog fires we get a machine check exception occuring instead of a clean system reset. It appears the /HRESET and /SRESET are not being toggled. Our hardware guys are telling me that it is a configuration issue and I have configured the watchdog the same way as the MPC860T which is working fine. Is there anything extra or diffrent I have to do on the MPC855T to get the watchdog to work? I have been trying for about 30-minuites to search the u-boot archives on source forge and have not had any sucess. Regards, Rod Boyce

2 1

[U-Boot-Users] U-Boot with gcc-3.3.2 and ARM926EJS Targets fails due to __udiv0
by Markus Pietrek 01 Feb '04

01 Feb '04

Hi folks, I'm currently porting U-Boot 1.0.0 to a NetSilicon NS9750 (ARM926EJS core). This port is partly derived from board/omap1610inn. The compiler is gcc-3.3.2, taken from the uClibc toolchain. For my target the compiler is using his internal libgcc.a:__div0 routine which of course fails (it's an SWI instruction). But compiling U-Boot for an smdk2410 platform with the same compiler uses the correct U-Boot's own __div0 code. I can't see any relevant differences in both build lines. Can anyone help me? And is it really necessary to include libgcc.a? The build line for the NS9750: ======================== UNDEF_SYM=`arm-linux-objdump -x board/ns9750dev/libns9750dev.a cpu/arm926ejs/libarm926ejs.a lib_arm/libarm.a fs/jffs2/libjffs2.a fs/fdos/libfdos.a fs/fat/libfat.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a lib_generic/libgeneric.a |sed -n -e 's/.*$__u_boot_cmd_.*$/-u\1/p'|sort|uniq`;\ arm-linux-ld -Bstatic -T /targets/ewp/LxMOD/build/apps/u-boot-1.0.0/board/ns9750dev/u-boot.lds -Ttext 0x00F80000 $UNDEF_SYM cpu/arm926ejs/start.o \ --start-group board/ns9750dev/libns9750dev.a cpu/arm926ejs/libarm926ejs.a lib_arm/libarm.a fs/jffs2/libjffs2.a fs/fdos/libfdos.a fs/fat/libfat.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a lib_generic/libgeneric.a -L /usr/local/LxNETES-3/arm-linux/lib/gcc-lib/arm-linux/3.3.2 -lgcc --end-group \ -Map u-boot.map -o u-boot ======================== The relevant entry in u-boot.map for __div0: =========================== /usr/local/LxNETES-3/arm-linux/lib/gcc-lib/arm-linux/3.3.2/libgcc.a(_udivsi3.o) drivers/libdrivers.a(serial_ns9750.o) (__udivsi3) / Compilation ============================ The build line for SMDK2410 =======================- UNDEF_SYM=`arm-linux-objdump -x board/smdk2410/libsmdk2410.a cpu/arm920t/libarm920t.a lib_arm/libarm.a fs/jffs2/libjffs2.a fs/fdos/libfdos.a fs/fat/libfat.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a lib_generic/libgeneric.a |sed -n -e 's/.*$__u_boot_cmd_.*$/-u\1/p'|sort|uniq`;\ arm-linux-ld -Bstatic -T /targets/ewp/LxMOD/build/apps/u-boot.smdk/board/smdk2410/u-boot.lds -Ttext 0x33F80000 $UNDEF_SYM cpu/arm920t/start.o \ --start-group board/smdk2410/libsmdk2410.a cpu/arm920t/libarm920t.a lib_arm/libarm.a fs/jffs2/libjffs2.a fs/fdos/libfdos.a fs/fat/libfat.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a lib_generic/libgeneric.a -L /usr/local/LxNETES-3/arm-linux/lib/gcc-lib/arm-linux/3.3.2 -lgcc --end-group \ -Map u-boot.map -o u-boot =================== The relevant entry in u-boot.map for __div0: ==================== lib_arm/libarm.a(_udivsi3.o) cpu/arm920t/libarm920t.a(speed.o) (__udivsi3) -- Markus Pietrek FS Forth-Systeme GmbH Phone: +49 (7667) 908 145, FAX +49 (7667) 908 221

4 4

[U-Boot-Users] Support for AMD Flash SecSi Sector
by Josef Baumgartner 01 Feb '04

01 Feb '04

Hi, we use an AMD 29LV640D flash on our MCF5272 board. This flash has a 128 Word sector called SecSi which is one time programmable. We'd like to use the SecSi sector of the flash to store board information, as serial number and ethernet MAC address. I'll start to implement support for the SecSi sector in u-boot. Is there anybody, still working on this topic? Are there any suggestions how to implement it? I think of adding some special commands in cmd_flash.c to read and prog the SecSi sector. Additionally I would change the read function for the "ethaddr" to use the SeCsi sector instead of the environment. Regards, Josef Baumgartner

2 1

RE: [U-Boot-Users] Support for AMD Flash SecSi Sector
by Brad Kemp 01 Feb '04

01 Feb '04

Josef, Intel has a similar construct in the strataflash device. Each chip has 64 bits of factory programmed serial number and 64 bits of user information that can be written once. I currently store the mac address and serial number in the user write once area. One of the issues is how this area should be returned in a parallel implementation. Should a read of this area return each chips protected area or should a read of this area return the area as it is addressed. When reading the factory serial number, all the bits of a chip must be read to insure uniqueness. In a by 4 parallel implementation reading the information by location, to guarantee uniqueness, the application must read 256 bits for Intel and 512 bits for AMD. While the size is not large, if there is need of the user to see this, it is a very long string. If a read returns each chips protected area serially, only one chips worth of data is needed to determine uniqueness. Brad -----Original Message----- From: Josef Baumgartner [mailto:josef.baumgartner@telex.de] Sent: Fri 1/30/2004 5:20 AM To: u-boot-users(a)lists.sourceforge.net Cc: Subject: [U-Boot-Users] Support for AMD Flash SecSi Sector Hi, we use an AMD 29LV640D flash on our MCF5272 board. This flash has a 128 Word sector called SecSi which is one time programmable. We'd like to use the SecSi sector of the flash to store board information, as serial number and ethernet MAC address. I'll start to implement support for the SecSi sector in u-boot. Is there anybody, still working on this topic? Are there any suggestions how to implement it? I think of adding some special commands in cmd_flash.c to read and prog the SecSi sector. Additionally I would change the read function for the "ethaddr" to use the SeCsi sector instead of the environment. Regards, Josef Baumgartner ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ 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] Env in flash
by Brad Kemp 01 Feb '04

01 Feb '04

Ed, I have never had to do anything to get the environment to work. I think it tries to read the environment and if the sector is erased, it creates the default environment in RAM. Brad -----Original Message----- From: Ed Okerson [mailto:eokerson@texasconnect.net] Sent: Thu 1/29/2004 4:31 PM To: U-Boot-Users(a)lists.sourceforge.net Cc: Subject: [U-Boot-Users] Env in flash When I build U-Boot with CFG_ENV_IS_NOWHERE the system boots and runs fine, but I am trying to move to a flash environment so I define CFG_ENV_IS_IN_FLASH and set the appropriate CFG_ENV_ADDR, CFG_ENV_SIZE, and CFG_ENV_SECT_SIZE to put the environment in an empty flash sector. After doing that however, U-Boot hangs after displaying the amount of flash on the board. Is there something I need to do to initialize the environment sector? Ed Okerson ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

1 0