Any PPC system with working USB 2.0 host
Any other boards that are known to work? AMCC 440EPx. Freescale 8343. Both have Linux support with USB 2.0 host.
How to search in this mailing-list?
This is maybe a bit silly, but I really don't know: How to search using some key words in this mailing-list? Go to google and do a site search example site:ozlabs.org/pipermail/linuxppc-embedded/ 440EP
USB on MPC8349EMDS
/ # usb 1-2: new high speed USB device using fsl-usb2-mph and address 8 usb 1-2: khubd timed out on ep0in usb 1-2: new high speed USB device using fsl-usb2-mph and address 9 usb 1-2: khubd timed out on ep0in When I used that driver I found it only worked with Full speed devices. Low and High speed devices did not work.
How do you make linux 2.6.10 U-Boot aware?
I'm using MontaVista linux 4.01 for the PPC440GX which is based on 2.6.10. It doesn't read the bootargs from U-Boot however. Does anyone out there have a synopsis of what needs to be modified (bd_info, etc.) to make this work with a 2.6.10 based release? The bd_info structure needs to come from ppcboot.h and the make command is make uImage That should be about it.
About 2.6.14 on AMCC Yosemite board
Your FLASH mapping says that FLASH starts at 0xFC00. There should only be 32Meg of FLASH starting at address 0xFE00. -Original Message- From: linuxppc-embedded-bounces at ozlabs.org [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of KylongMu Sent: Wednesday, November 02, 2005 8:50 AM To: 'Wolfgang Denk' Cc: Linuxppc-embedded at ozlabs.org Subject: About 2.6.14 on AMCC Yosemite board Hi, Denk I've got my Yosemite board today, it's shows very good by default test. I downloaded the 2.6.14 according the repository from your website by cogito. with default configure, I boot with the uImage, but the system halt, attachment is the message. I don't know what happen with it, pls help me. Thanks a lot! Kylong Mu
bdi2000 file for yosemite board
Never tried the FLASH portion. From: linuxppc-embedded-bounces at ozlabs.org [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of Peter Fercher Sent: Friday, October 21, 2005 10:20 AM To: linux-ppc-embedded Subject: bdi2000 file for yosemite board does anybody have a clue where to get a yosemite (ppc440ep eval board from embedded planet) .cfg and .reg (configuration and register definition) file for the bdi2000 programmer to reprogramm the flash (write u-boot into flash) ? -- next part -- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20051021/065817e6/attachment.htm -- next part -- A non-text attachment was scrubbed... Name: 4xxep440.cfg Type: application/octet-stream Size: 3696 bytes Desc: 4xxep440.cfg Url : http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20051021/065817e6/attachment.obj
RPXClassic Help
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4 ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx PCMCIA slot B: phys meme000...e801 (size 0801) Card ID: SunDisk SDP 5/3 0.6 Fixed Disk Card IDE interface [silicon] [unique] [single] [sleep] [standby] [idle] [low power] Probing IDE interface ide0... probing for hda: present=0, media=32, probetype=ATA do_probe 471 probing for hda: present=0, media=32, probetype=ATAPI do_probe 471 probing for hdb: present=0, media=32, probetype=ATA do_probe 471 probing for hdb: present=0, media=32, probetype=ATAPI do_probe 471 Linux Kernel Card Services 3.1.22 options: none m8xx_pcmcia: Version 0.05, 14-Apr-2002 m8xx_pcmcia: RPX CLASSIC or RPX LITE using SLOT_B with IRQ 13. I use the PCMCIA card services at sourceforge instead of the built in support. They work very well including ATA/IDE.
Linux 2.4.25 / MPC8280 / ram config vs Linux instability?
I am using U-boot to configure up the SDRAM and SRAM in our system before we launch Linux. We have 32 Mb of SDRAM and 2 MB of SRAM in the system. When I was working on an 8260 a while back I had to map PSDRAM at address 0x and LSDRAM starting at the PSDRAM's end. I found that when I made the PSDRAM smaller than the LSDRAM then the LSDRAM was not mapped properly. This was due to the fact that the start address for the memory bank needed to be a multiple of the bank size. If the LSDRAM was 32Meg then the start address of the bank needed to be on a 32Meg boundary. I am not sure but if you are mapping a 2Meg SRAM at 0x followed by a 32Meg SDRAM then the SDRAM is not on a 32Meg boundary. This may not be your issue but it may be worth looking in to.
2.4.26 and MPC885 context switching time
Therefore i wonder, if there are any known problems with the MMU on 8xx and 2.4.2x which might explain that? I did some work on an 885 with Linux 2.4.22. I found that when the processor was running at 100MHz or higher Linux would die when decompressing the ramdisk. Below 100MHz it would run fine. I came up with a hacky fix because I mis-read an errata notice. What I did was set the ICTRL register to 0x0001, this fixed the problem. Basically all this does is slow the processor down considerable. The Linux you have may be doing the same thing. This could explain the performance hit you are seeing.
Linux 2.4.26 boot over network
Now, I am trying to boot Linux over the network using the following boot arguments: Kernel command line: console=ttyS0,9600n8 console=tty0 root=/dev/nfs rw nfsroot= 192.168.49.189:/home/proj/at921/Filesys/usr/local/gefnes/target 192.168.49.1:192.168.49.189::255.255.255.0::eth0:off da104_gpio=8 In the first one you had ip=bootp, this uses bootp to get the ip address. In the second one you do not have an ip define so the ethernet is not being enabled. You need something like this ip=192.168.49.1:::255.255.255.0
RE: Réf. : Re: starting RAM adress for linux kernel
we need to have the start of Ram at 0x0300 because we use the command mem=40M (for uboot) to force Linux in the low part of memory and to reserve the high part of memory (218M exactly ) for ioremap (for our application) but we keep the same flash mapping (to avoid more problems). So how can we do that ? The boot seems OK but there is some problems in Kernel after uncompressing the kernel image. Is the only solution is to inverse the mapping with Ram from 0 to 258M and the flash above ? RAM should always start at address 0x0 in your chip select mapping. When you pass mem=40M Linux will claim RAM from 0x0 to 0x0280. The rest of the RAM, 0x0280 to the end will be available for ioremap. The reason your kernel does nothing after being uncompressed is because it has no idea where it is and probably is not being uncompressed to a valid RAM address. The sensible place to map FLASH is the end of memory, or anywhere out of the way. I assume you are low booting and that is why you think FLASH needs to be at the beginning of memory. It does not, even though that is where you boot from you can remap the FLASH. Finally, will Busybox work with Ram starting at 0x0300 ? Busy box is part of your ramdisk, it does not know anything about the memory map. If your kernel does not get past uncompressing then you did not get anywhere near busy box running.
USB-host driver for 440ep (bamboo)?
-Original Message- From: linuxppc-embedded-bounces at ozlabs.org [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of extabe at bredband.net Sent: Wednesday, May 18, 2005 9:16 AM To: linuxppc-embedded at ozlabs.org Subject: USB-host driver for 440ep (bamboo)? Is there any driver for the USB-host-controller built-in the 440ep CPU. I?m using the Bamboo board and need USB-host support. Does anyone have any experience with that? U-boot 1.1.3 has a usb_ohci.c driver for the MPC5200. That driver with just a few changes worked like a champ on the 440EP.
Linux crashes during memory mapping
I do not have any problem with the functioning of U-Boot but Linux crashes after printing Uncompressing Kernel ... OK and then it seems that nothing is happening. Do you have the SYPCR(serial watch dog timer) disabled? 3. The memory map of the VPN Board (MY BOARD) is as folllows: = Memory RegionSize Address Range == SDRAM32MByte _ -- 01FF_ Flash32MByte FF00_ -- _ Have you done a full test to make sure your RAM is correctly mapped? This is what the console log buffer has shown: = md 0x00177e34 00177e34: 3c363e6d 73746172 743d303c 363e6d73 6mstart=06ms 00177e44: 697a653d 303c363e 66737461 72743d30 ize=06fstart=0 00177e54: 3c363e66 73697a65 3d303c36 3e696d6d 6fsize=06imm 00177e64: 723d303c 363e626f 74666c61 673d303c r=06botflag=0 00177e74: 363e6970 6164643d 303c363e 65616464 6ipadd=06eadd 00177e84: 3d633031 35303032 383c363e 65737065 =c01500286espe 00177e94: 643d303c 363e696e 6974663d 303c363e d=06initf=06 00177ea4: 62757366 3d303c36 3e63706d 663d303c busf=06cpmf=0 00177eb4: 363e6272 67663d30 3c363e73 6363663d 6brgf=06sccf= 00177ec4: 303c363e 76636f3d 303c363e 62617564 06vco=06baud 00177ed4: 3d304f6f 70733a20 6b65726e 656c2061=0Oops: kernel a These values do not look correct. Everything is zero.
USB host on Freescale MPC880
http://www.heeltoe.com/ has a usb driver for the 823, 850 processors. This should be able to get you started. There is also text talking about the pitfalls using the 8xx USB controller. -Original Message- From: linuxppc-embedded-bounces at ozlabs.org [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of Dayton, Dean Sent: Tuesday, January 18, 2005 8:32 AM To: linux-usb-devel at lists.sourceforge.net; linuxppc-embedded at ozlabs.org Subject: USB host on Freescale MPC880 I need to provide a USB host interface on a propietary board using a Freescale (Motorola) MPC880. The MPC880 has a USB implemented in the CPM, but I haven't found any Linux support for it. Can anyone point me to existing drivers? Does anyone know of any problems that would/should prevent me from using the MPC880's USB interface? Thanks - Dean Dayton Staff Engineer - Applied Innovation Inc. (614)923-1174 deand at aiinet.com ___ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
Some issues with kernel 2.6 for MPC8260 target
I ported it to the Embedded Planet ep8260 board with FCC3, ep8248 board with FCC1 and FCC2 and ep8280 with FCC2 and FCC3. I had to make very little, if anything, to get it to work. I did not try 2.6.9. I am currently using 2.6.10-rc3 which I believe after the last merge is now 2.6.10. I did practically nothing to get all of these to work. -Original Message- From: Saso Kavcic [mailto:saso at activetools.si] Sent: Wednesday, January 12, 2005 9:27 AM To: Steven Blakeslee Cc: linuxppc-embedded at ozlabs.org Subject: Re: Some issues with kernel 2.6 for MPC8260 target Hi Steven, Have you noticed any improvements in 2.6.10. over 2.6.9? We were porting 2.6.9 to a custom mpc8275vr board and we were able to get everything working except ethernet (fcc enet). We did manage to get a few packets over it but it was all very slow, unstable and unpredictable and it seemed that fcc enet driver doesn't work well in 2.6. Were you able to use fcc under 2.6.9? Best Regards, Saso Steven Blakeslee wrote: I would suggest going to the latest 2.6.10 kernel. I have it running with several ethernets running on all the 82xx processors. -Original Message- From: linuxppc-embedded-bounces at ozlabs.org [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of Vijay Padiyar Sent: Wednesday, January 12, 2005 5:37 AM To: LinuxPPC Support Subject: Some issues with kernel 2.6 for MPC8260 target Hi all I wish to discuss some strange issues that I faced with respect to the Linux 2.6.8 kernel (downloaded from kernel.org). Firstly, I wish to know whether this has been known to work on an MPC8260 PowerPC target. Secondly, when I tried to compile the Linux kernel with my toolchain (built with Dan Kegel's crosstool for the PowerPC 603e core, which is what my processor has), I got some errors which I found to rather queer after investigation. Firstly, let me state the errors that I got: -- LD init/built-in.o LD .tmp_vmlinux1 arch/ppc/8260_io/built-in.o(.text+0x103c): In function `mii_queue_relink': arch/ppc/8260_io/fcc_enet.c:1254: undefined reference to `schedule_task' arch/ppc/8260_io/built-in.o(.text+0x1074): In function `mii_queue_config': arch/ppc/8260_io/fcc_enet.c:1263: undefined reference to `schedule_task' -- On further investigation, I find that 'schedule_task()' is simply not defined anywhere in the 2.6.8 kernel sources. This is quite wierd! However, it is defined in a file 'context.c' (linux-src/kernel) in the 2.4.27 kernel sources, which we were using earlier. How is it that a function is being called but its definition has been removed from the sources? Another such example is with the structure 'tq_struct'. It is referred to in the file 'fcc_enet.c' (linux-src/arch/ppc/8260_io) but it's not defined anywhere! Again, after checking in the 2.4.27 sources, I find that it's defined in the file 'tqueue.h' (linux-src/include/linux)! A third thing is that the 2.4.27 kernel source file 'uart.c' (linux-src/arch/ppc/cpm2_io) is not present in the corresponding folder in the 2.6.8 source (linux-src/arch/ppc/8260_io). There is one 'uart.c' in the folder '8xx_io', but it doesn't get compiled during the kernel build process. Will my UART work correctly with this build? Can someone please tell me if there's some explanation for this that I'm unaware of? Which would be the proper forum to report this? Again I would like to ask: Has the 2.6.8 kernel been tested successfully on the MPC8260 PowerPC platform? Lastly, where can I get the latest stable Linux kernel source for the PowerPC platform? Regards Vijay Padiyar ___ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded ___ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
2.6.10-rc3 for 8xx booting load_kernel(...) function problem vs configuring and initializing serial console ?
CONFIG_CMDLINE=console=ttyCPM0 panic=3 root=/dev/ram All I had to do to get the rpxlite running was do console=ttyCPM0 root=/dev/ram rw. Check the default config for the rpxlite, that may help you. (then from load_kernel() I would see)** loaded at: 0018 0035622C board data at: 0035313C 0035317C relocated to: 001852CC 0018530C zimage at: 001857F9 00226057 initrd at: 00227000 00352ADF avail ram: 00357000 0200 Linux/PPC load: panic=3 root=/dev/ram Uncompressing Linux...done. It would appear you did not recompile the kernel or you did not reload it. It still shows the command line without console=ttyCPM0.
Error cross-building Linux 2.6 for 8xx
arch/ppc/8xx_io/uart.c is the problem. For the 2.6 kernel that compiles for 8xx that file does not exist. You need a newer version of the 2.6 kernel. The version that compiles correctly and sort of runs is Linux 2.6.10-rc3. I know for a fact that Linux 2.6.9 and lower does not compile correctly on 8xx. Also, nfs root does not work, use a ramdisk. My email client sucks, so I probably broke the thread, sorry. -Original Message- From: linuxppc-embedded-bounces at ozlabs.org [mailto:linuxppc-embedded-bounces at ozlabs.org] On Behalf Of Povolotsky, Alexander Sent: Thursday, December 16, 2004 10:31 AM To: 'linuxppc-embedded at ozlabs.org'; 'etux at embeddedtux.org' Subject: Error cross-building Linux 2.6 for 8xx Hi - I am double posting this on both: linuxppc-embedded at ozlabs.org and etux at embeddedtux.org, hoping to increase the audience and, hence, to maximize the number of responses (if only the same people read both mail lists, why such duplicate redundant mail lists exist ?) I recognize and highly appreciate what Wolfgang Denk wd at denx.de wrote (to me) on etux at embeddedtux.org: Forget the combination of a 2.6 kernel and a MPC8xx processor for now. There are still serious problems in 2.6 on these processors. But at least (I thought) I should be able to build the 2.6 kernel for 8xx. So firstly I ran into I2C no-current-support-for-8xx (see details in the listed below e-mail chain) ... Then I took the I2C configuration out and tried to build the kernel again - but I am still getting errors (not sure though whether cross-compiler contributes to those recent errors or not ... - I would, as always, appreciate any opinion/input ! ): Make zImage CHK include/linux/version.h make[1]: `arch/ppc/kernel/asm-offsets.asm' is up to date. CHK include/linux/compile.h CC arch/ppc/8xx_io/uart.o arch/ppc/8xx_io/uart.c:82: warning: type defaults to `int' in declaration of `DECLARE_TASK_QUEUE' arch/ppc/8xx_io/uart.c:82: warning: parameter names (without types) in function declaration arch/ppc/8xx_io/uart.c: In function `serial_console_device': arch/ppc/8xx_io/uart.c:145: error: storage class specified for parameter `rs_table' arch/ppc/8xx_io/uart.c:145: error: parameter `rs_table' is initialized Thanks, Best Regards, Alex -Original Message- From: Dan Malek [mailto:dan at embeddededge.com] Sent: Wednesday, December 15, 2004 11:54 AM To: Povolotsky, Alexander Cc: 'linuxppc-embedded at ozlabs.org' Subject: Re: I2C + Linux 2.6 on MPC880/MPC885 based board(s) On Dec 15, 2004, at 11:04 AM, Povolotsky, Alexander wrote: On a software (Linux 2.6) side ... Did you deal with Linux 2.6 + MPC880/MPC885 (or at least any MPC8xx) ? If yes, what I2C settings in .config were used for successful 2.6 kernel build ? I am having a problem building it (see below attached) ... - that is why I am trying to understand from the hardware point of view - hence my h/w related questions ... - the importance of I2C. It looks like someone that has an interest in using the CPM I2C (which isn't me) will need to port it first to 2.6, then provide the board specific functions for set up and control. On top of this, if you want to run the SMBus protocols, you will need a much more complex CPM I2C functions. -- Dan ** -Original Message- From: Povolotsky, Alexander Sent: Tuesday, December 14, 2004 6:13 PM To: 'Greg KH'; Jean Delvare Subject: RE: 8xx i2c drivers (cross)compilation errors on Linux 2.6.8 Hi, Alexander, what arch are you building for? PPC -8xx -MPC880 (Motorola - FreeScale Semiconductor) http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code =MPC885nodeId =018rH3bTdG4204 Thanks, Best Regards, Alex PPS I have attached my original e-mail in its entirety (at the end ). -Original Message- From: Greg KH [mailto:greg at kroah.com] Sent: Tuesday, December 14, 2004 4:50 PM To: Jean Delvare Cc: Alexander.Povolotsky at marconi.com Subject: Re: 8xx i2c drivers (cross)compilation errors on Linux 2.6.8 On Tue, Dec 14, 2004 at 10:38:00AM +0100, Jean Delvare wrote: On 2004-12-14, Alexander Povolotsky wrote: Hi, I have the following .config setup: (...) CONFIG_I2C_RPXLITE=y (...) Originally I was getting error: CC drivers/i2c/busses/i2c-rpx.o drivers/i2c/busses/i2c-rpx.c:20:32: linux/i2c-algo-8xx.h: No such file or directory - why I am missing it - any hint ? Hm, looks like the 8xx i2c algorithm was never ported to Linux 2.6. Greg, how come that the RPX adapter driver is present in the tree and the algorithm it depends on isn't? Because no one ever sent me the patch with those files in it? :) I have no idea, I've not cross built this driver before. Greg, could it be that an arch-specific (m68k? don't know what this
405GPr PCI target/host
I am trying to get an IBM 405GPr processor to work as a target/host on a PCI bus. A PCI target can temporarily become a host on the PCI bus. Basically this means it needs to do everything the host currently does except assigning PCI memory space, the dedicated host is responsible for this. I saw a message concerning this on Tue 12/23/2003 4:20 PM, the questions was for MPC7447(Dual CPU) + MV64360 based Processor PMC boards I only saw one response to this and it did not seem to be correct. I was wondering if anyone has done something like this, not necessarily with a 405, any processor experience will do. I appreciate any help or advice. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
anyone ever see swap_dup: Bad swap file entry?
I am using the linuxppc_2_4_devel tree from http://ppc.bkbits.net/ and a ramdisk which I downloaded from Wolfgang Denx's FTP site. The compile environment is the latest ELDK. I have this tree and ramdisk working just fine on an MPC8260 processor. I took that support and changed a few lines of code in arch/ppc/lib/string.S and arch/ppc/kernel/misc.S to get the kernel to boot on an MPC8248 processor. The kernel appears to boot and mount the ramdisk but then I get the following error. RAMDISK: Compressed image found at block 0 Freeing initrd memory: 1431k freed VFS: Mounted root (ext2 filesystem). Mounted devfs on /dev Freeing unused kernel memory: 56k init swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c swap_dup: Bad swap file entry 0e18d55c This error is in mm/swapfile.c It happens when type = nr_swapfile in function swap_duplicate. The only time nr_swapfile gets changed is function sys_swapon. Using my BDI2000 I see that sys_swapon is never getting called. Does anyone know when or if sys_swapon should get called? Has anyone seen this before? Any advice is always appreciated. Steve Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
good learning experience for Linux
I sent a message earlier today about getting a swap_dup: Bad swap file entry 0e18d55c error. I found the problem and fixed it and wanted to share it with people who are still learning this stuff, like myself. After 2 days of pounding on my head I found the file Documentation/powerpc/cpu_features.txt It explained how the file arch/ppc/kernel/cputable.c has a list of the known powerPC PVRs(processor version register). The 8248 was not in there so it was using a default entry. That was the cause of my problems. I added a new entry for the 8248 and all is working. My lesson was a little research makes things much nicer. Lesson learned. Steve Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
good learning experience for Linux
I still have so more to do like verifying FEC and PCI. Also I did it on 2.4 which I believe is done or close to being. I can provide a patch when I am done. -Original Message- From: Dan Kegel [mailto:[EMAIL PROTECTED] Sent: Thursday, April 22, 2004 11:59 AM To: Steven Blakeslee Cc: 'linuxppc-embedded at lists.linuxppc.org'; 'etux at embeddedtux.org' Subject: Re: good learning experience for Linux Steven Blakeslee wrote: I sent a message earlier today about getting a swap_dup: Bad swap file entry 0e18d55c error. I found the problem and fixed it and wanted to share it with people who are still learning this stuff, like myself. After 2 days of pounding on my head I found the file Documentation/powerpc/cpu_features.txt It explained how the file arch/ppc/kernel/cputable.c has a list of the known powerPC PVRs(processor version register). The 8248 was not in there so it was using a default entry. That was the cause of my problems. I added a new entry for the 8248 and all is working. My lesson was a little research makes things much nicer. Lesson learned. So, is this already in the latest kernel sources? If not, have you considered sending in a patch? - Dan -- My technical stuff: http://kegel.com My politics: see http://www.misleader.org for examples of why I'm for regime change ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
MPC852 Cache initializing problem
It may be your debugger that is causing the problem. The next thing called is turn_on_mmu and I believe that causes an exception. -Original Message- From: Meriin Michael-BMM063 [mailto:[EMAIL PROTECTED] Sent: Monday, April 19, 2004 11:57 AM To: 'linuxppc-embedded at lists.linuxppc.org' Subject: MPC852 Cache initializing problem Hello, I'm trying to put Linux on MPC852T platform (Embedded Planet). I'm using UBOOT as a Boot Loader. I'm trying to put kernel 2.4.20 On the very beginning of the Linux Initializing in initial_mmu after enabling Cache the system crashes. Any ideas? Thanks, Best Regards, Michael Meriin ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
C++ Memory Requirements for PowerQUICC 1
It depends on the application. An entire Linux kernel complete with ramdisk can run on 8MB of RAM. -Original Message- From: vze8n24y at verizon.net [mailto:[EMAIL PROTECTED] Sent: Friday, April 02, 2004 12:30 PM To: linuxppc-embedded at lists.linuxppc.org Subject: C++ Memory Requirements for PowerQUICC 1 Hi: I would like to run C++ on a PowerQUICC I system that has 8 MB of RAM. I was told by a friend that this was not enough memory to run a C++ program with the C++ libraries. Does anyone have experience with this? Regards, Bob Davis ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Preferred Phy for MPC8260
intel lxt971 -Original Message- From: Jos Beck [mailto:[EMAIL PROTECTED] Sent: Friday, March 26, 2004 10:15 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Preferred Phy for MPC8260 Hi, I hope I am not too much off-topic in this mail list .. but Would anyone of you know a preferred 10/100baseT phy for the MPC8260? Or specific brands/types to avoid? Or does it really not matter what we use? Thanks, Jos ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Simple module question
look into wait queues. -Original Message- From: Karsten Jeppesen [mailto:[EMAIL PROTECTED] Sent: Thursday, February 19, 2004 3:29 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Simple module question Aren't they all.. I am doing some heavy work in a write function. But I have a poll wait loop (waiting for flash program end) where a lot of time is wasted. How do I tell the scheduler that I would like t surrender the CPU for others to use? I tried calling scheduler(), but that only crashed the kernel. What is the correct way? Sincerely, Karsten ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Issues configuring the network interafce on a 8260 board with multiple eth ports
I believe you need to specify which eth device to use in the config parameter. Try the following ip=10.121.10.21:10.121.10.150:10.121.10.254:255.255.255.0:voip_lnx_joao:eth0 :off -Original Message- From: Joao Vicente [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 03, 2004 9:45 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Issues configuring the network interafce on a 8260 board with multiple eth ports Hi I am trying to bring up a second network interface, on a MPC8260 based custom board If I configure the kernel with only one FCC, it does bring up both the ethernet and IP services. If I configure the second eth port, by choosing FCC2 on the menuconfig, it configures both eth0 and eth1 properly, but if fails to resolve the IP interfaces. When I try checking the intefaces with ifconfig I can only see the loopback device. I have have also noticed that the MAC address selected for the eth1 is an increment from eth0. Does this apply to the default IP address chosen, or do I need to pass it though the kernel cmdline ? I was also looking for details/examples on the kernel cmdline. All I could find was a brief reference on the kernel folder Documentation/kernel-parameters.txt. Does anybody know of good reference for selecting kernel parameters. Find below the boot-up sequence that I get when I have both FCC1 and FCC2 eth interfaces enabled. ## cmdline at 0x007FFF00 ... 0x007FFF8D bd address = 0x01FB2FB4 memstart= 0x memsize = 0x0200 flashstart = 0xE240 flashsize = 0x0040 flashoffset = 0x sramstart = 0x sramsize= 0x immr_base = 0xF000 bootflags = 0x0001 vco =240 MHz sccfreq = 60 MHz brgfreq = 15 MHz intfreq =180 MHz cpmfreq =120 MHz busfreq = 60 MHz ethaddr = 00:D0:9B:00:00:B9 IP addr = 10.121.10.21 baudrate= 115200 bps ## Loading RAMDisk Image at e240 ... Image Name: RAM Disk Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size:1439292 Bytes = 1.4 MB Load Address: Entry Point: Verifying Checksum ... OK ## initrd at 0xE2400040 ... 0xE255F67B (len=1439292=0x15F63C) Loading Ramdisk to 01e52000, end 01fb163c ... OK ## Transferring control to Linux (at address ) ... Memory BAT mapping: BAT2=32Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.20 (jvicente at lab00056l.localdomain) (gcc version 2.95.4 20010319 (prerelease/franzo/20011204)) #32 Tue Feb 3 14:05:14 GMT 2004 On node 0 totalpages: 8192 zone(0): 8192 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/ram rw ip=10.121.10.21:10.121.10.150:10.121.10.254:255.255.255.0:voip_lnx_joao::off mem=32M console=ttyS3,115200 ramdisk_size=8192k IP-Config: Parameter #0: `10.121.10.21' IP-Config: Parameter #1: `10.121.10.150' IP-Config: Parameter #2: `10.121.10.254' IP-Config: Parameter #3: `255.255.255.0' IP-Config: Parameter #4: `voip_lnx_joao' IP-Config: Parameter #6: `off' Warning: real time clock seems stuck! Calibrating delay loop... 119.60 BogoMIPS Memory: 29172k available (1084k kernel code, 400k data, 52k init, 0k highmem) Dentry cache hash table entries: 4096 (order: 3, 32768 bytes) Inode cache hash table entries: 2048 (order: 2, 16384 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 8192 (order: 3, 32768 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd JFFS version 1.0, (C) 1999, 2000 Axis Communications AB JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB. CPM UART driver version 0.01 ttyS0 on SCC1 at 0x8000, BRG1 ttyS1 on SCC2 at 0x8100, BRG2 ttyS2 on SCC3 at 0x8200, BRG3 ttyS3 on SCC4 at 0x8300, BRG4 pty: 256 Unix98 ptys configured eth0: FCC1 ENET Version 0.4, 00:D0:9B:00:00:B9 eth0: Phy @ 0x0, type LXT973 (0x00137a10) eth1: FCC2 ENET Version 0.4, 00:D0:9B:00:00:BA eth1: Phy @ 0x1, type LXT973 (0x00137a10) RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 2048 bind 2048) IP-Config: Entered. eth0: config: auto-negotiation on, 100FDX, 100HDX, 10FDX, 10HDX. IP-Config: eth0 UP (able=0, xid=) eth0: status: link up, 10 Mbps Half Duplex, auto-negotiation complete. eth1: config: auto-negotiation on, 100FDX, 100HDX, 10FDX, 10HDX. IP-Config: eth1 UP (able=0, xid=) IP-Config: (REVISIT) ic_myaddr = 10.121.10.21 IP-Config: (REVISIT) root_server_addr = 255.255.255.255 IP-Config: (REVISIT) ic_servaddr = 10.121.10.150 IP-Config: (REVISIT) ic_first_dev-next = c1e50500 IP-Config: Incomplete network configuration information. IP-Config: Downing eth0 IP-Config: Downing eth1
usb driver requries pdev?
I have been looking through the USB driver for the latest linuxppc_2_4_devel tree at ppc.bkbits.net and I spotted something that looks like a bug. I did a search through the list and did not see any mention of it. In drivers/usb/hcd.h the declaration of pdev is in #ifdef CONFIG_PCI #endif. In drivers/usb/hcd.c I see pdev used several times but it is not in #ifdef CONFIG_PCI #endif. The make file forces hcd.c to be compiled when USB support is enabled but if the board does not have PCI the compile will fail because of this. Steve Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
downloading source with specific changeset
I was hoping someone with experience with bitkeeper could advise me on what I am doing wrong. I am trying to download a specific revision of the linuxppc_2_4_devel tree, tag v2.4.21_linuxppc_2_4_devel, at http://ppc.bkbits.net:8080/linuxppc_2_4_devel The command I give is bk clone -r1.1308.1.36 http://ppc.bkbits.net/linuxppc_2_4_devel I thought the -r1.1308.1.36 would tell it to download up to changset 1.1308.1.36 but I keep getting the most recent version. Can you please tell me what I am doing wrong. Thank you, Steven Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
want help regarding toolchain for E8260 Planetcore
I use ELDK(www.denx.de) as the tool chain and the linuxppc_2_4_devel tree to run on the ep8260 -Original Message- From: Nikhil Bhargava To: dank at kegel.com; linuxppc-embedded at lists.linuxppc.org Sent: 12/17/03 11:21 PM Subject: want help regarding toolchain for E8260 Planetcore hello, Thanks for all members of this grp for helping me out on almost all ocassions when i have a doubt going beyond myself. I have to port opensource Linux 2.4.X on to an E8260 mpc 8260 target board from planet core. I will use this development board in testing some protocol stacks. Can any one tell me what are the most stable versions of Gcc, Glibc etc should i use. Further what components to choose and what to discard from the standard os. Moreso, the board already have a bootloader running so i just need to port the os on it. In this scenarios how should i go about it. I will be using BDI 2000 emulator/debugger. I am following Karim's embedded linux book and web resources for this. Regards, Nikhil Bhargava ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
ram root filesystem
Try the ram disk at ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/ppc_82xx/ -Original Message- From: AlessandroPPC [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 03, 2003 12:49 PM To: linuxppc-embedded at lists.linuxppc.org Subject: ram root filesystem Hi to all, I'm developing a custom application on 8260 based board. I have first used the ELDK package version 2.0.2 with Kernel 2.4.4 and nfs root filesystem. Now I want migrate my application on the system using ram fs instead of nfs. To do this I have generated a ramdisk image derived from ELDK fs eliminating superfluous packages and using a makefile with this instructions: @echo @echo create root files system @echo rm -rf $(BUILD)/var/log/tegated mkdir $(BUILD)/var/log/tegated rm -rf $(RAMFS)/tmp/ mkdir $(RAMFS)/tmp dd if=/dev/zero of=$(RAMFS)/ramrootfs bs=1k count=36864 mke2fs -F -m0 $(RAMFS)/ramrootfs mount -o loop -t ext2 $(RAMFS)/ramrootfs $(RAMFS)/tmp cp -av $(BUILD)/* $(RAMFS)/tmp umount $(RAMFS)/tmp cat $(RAMFS)/ramrootfs | gzip -9 $(IMGTGZ) /opt/eldk/usr/bin/mkimage -T ramdisk -C gzip -n DexGate filesystem image -d $(IMGTGZ) $(RAMDSK) rm -rf $(RAMFS)/tmp/ @echo @echo Ramdisk image now in /tftpboot/ramdisk @echo In this way I'm able obtain a valid ramdisk image to download on my board using ppcboot. giving the commands bootp 0x250 /tftpboot/image BOOTP broadcast 1 ARP broadcast 1 TFTP from server 10.0.0.4; our IP address is 10.0.0.20 Filename '/tftpboot/image'. Load address: 0x250 Loading: # ### done Bytes transferred = 610742 (951b6 hex) fec001 bootp 0x260 /tftpboot/ramdisk BOOTP broadcast 1 ARP broadcast 2 TFTP from server 10.0.0.4; our IP address is 10.0.0.20 Filename '/tftpboot/ramdisk'. Load address: 0x260 Loading: # # # # # # # # # # done Bytes transferred = 11645509 (b1b245 hex) fec001 setenv bootargs root=/dev/ram rw fec001 bootm 0x250 0x260 At this point the system boots and the kernel mounts the ram disk but at time of rc.sysint script I have this error : VFS: Mounted root (ext2 filesystem). Freeing unused kernel memory: 60k init INIT: version 2.78 booting Mounting proc filesystem : [ OK ] Configuring kernel parameters : [ OK ] Setting clock : Wed Dec 31 19:00:15 EST 1969 [ OK ] Activating swap partitions : [ OK ] Setting hostname 10.0.0.20 : [ OK ] Checking root filesystem /dev/ram: The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 device [/sbin/fsck.ext2 (1) -- /] fsck.ext2 -a /dev/ram fsck.ext2: Bad magic number in super-block while trying to open /dev/ram [FAILED] *** An error occurred during the file system check. *** Dropping you to a shell; the system will reboot *** when you leave the shell. Give root password for maintenance (or type Control-D for normal startup): Notice that if I write rc.sysinit script to skip Checking root filesystem I obtain the prompt but the syslogd deamon fails the startup. From ELDK distribution I have changed /etc/fstab file in /dev/ram/ ext2defaults 0 0 none/proc procdefaults 0 0 and /etc/mtab file in /dev/ram / ext2 rw 0 0 none /proc proc rw 0 0 Someone can say why fsck is not able to check ram fs and if the syslogd problem is related to ram fs? thanks to all, Regards, Alessandro. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Network problem when using jtag debugger on EP8260
I've used an Abatron on the EP8260 and I never saw any network problems. -Original Message- From: Jeff Mintz [mailto:[EMAIL PROTECTED] Sent: Thursday, November 20, 2003 8:17 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Network problem when using jtag debugger on EP8260 I am attempting to debug the Linux Kernel on an Embedded Planet 8260 board, using a COP JTAG debugger. I am encountering a behavior where when I halt the kernel, and resume, the kernel's ability to access the network seems to be disturbed. I am wondering if anyone has seen something like this before. Let me clarify the problem: [Case 1] - I boot the Linux kernel (version 2.4.22, obtained from Embedded Planet) - When I get to the prompt, I halt the target using the debugger. The target always seems to halt at address 0x904. - I resume the target. A network access (such as ls) takes about 7 seconds, instead of being instantaneous. (I'm not using a ramdisk, so ls uses NFS). - If I halt and resume again, network access is slowed down even further, certainly to the point of being unusable. [Case 2] - When I get to the prompt, I issue the command while(true); do true; done which sets the kernel off and running infinitely (until I stop it with Ctrl-C). - Using the debugger, I halt the target. I am not at 0x904, but somewhere else, either in the kernel code, or in what seems to be a user application page. - I can stop, singlestep, resume, set and hit breakpoints using the debugger. When I finally stop the while loop, the network is fine. All of my debugging activity did nothing to disturb network access. [Case 3] - Same as Case 2. This time, after halting the target, I set a breakpoint on the first line in the function fcc_enet_rx. I resume the target. This breakpoint is hit about 15 times, and then it is not hit anymore. When I attempt to stop the while loop, the network access has been disturbed. [Case 4] - Same as Case 1. This time, before I halt the target using the debugger, I unplug the ethernet cable. Then I halt the target, and it is again at 0x904. - Now I resume the target using the debugger. - Now I plug in the ethernet cable to the target again. - Network accesses (i.e. ls) works fine. My primary goal is to fix Case 1. I do not want to lose network access when I halt the kernel when it is idle. Case 2 gives me hope that this is possible, because this is a case where I can halt the Linux kernel without disturbing the network access. The JTAG debugger I am using is a Green Hills Probe. I have also tried with an Agilent E5900B Emulation Probe and seen similar behavior. Some questions: - Has anyone seen this before? If so, is there a known remedy or workaround? (For example, is there a kernel patch? Is there a way to recover from this slowed network state?) If not, does anyone have a theory to explain why I am seeing this behavior? - Does this occur on the BDI2000 debugger? I don't have access to one of those, but I hear that is the best JTAG debugger for Linux. If anyone can easily try some of these test cases on other debuggers and let me know the results, that would be helpful. - Is there any reason to think that the scenario I described in Case 1, halting the target while at the shell prompt, is something that users typically don't do (and hence, I shouldn't worry about it)? Thanks in advance, Jeff Mintz Green Hills Software ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Silicon Motion VGA controllers and PPC architecture
I've had success with a sensoray card connected to a 405. -Original Message- From: Mark Powell [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 12, 2003 12:19 PM To: llandre Cc: linuxppc-embedded at lists.linuxppc.org Subject: Re: Silicon Motion VGA controllers and PPC architecture llandre wrote: I'm looking for a VGA controller to use with an embedded PPC405-based system. I had a look at the Silicon Motion chips (712/722) and they seem very suited for embedded applications. Unfortunately the techical support claims that these chips, because the presence of x86 BIOS, support only the x86 architecture. Anybody can confirm this? We have used the 3DM/3DM+ and ran into this problem. There is no documentation on how to initialise the chip and the documentation that there is contains little description or explanation and is just plain wrong in places. -- Mark Powell, Senior Software Engineer, Primagraphics Limited New Cambridge House, Litlington, nr.Royston, Herts, SG8 0SS, UK Tel. +44 1763 85, Fax. 853324, http://www.primagraphics.co.uk ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
RAMDISK problem
did you add a configuration line command like root=/dev/ram0 -Original Message- From: Joao Vicente [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 11, 2003 10:45 AM Subject: RAMDISK problem I am struggling with a problem where I dont seem to be able to mount a boot filesystem from a RAMDISK. I am using the sample RAMDisk root filesystem available from Denx's ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/ppc_82xx/ On the config file I have the following lines: CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_INITRD=y CONFIG_CRAMFS=y CONFIG_RAMFS=y CONFIG_PROC_FS=y CONFIG_DEVPTS_FS=y CONFIG_EXT2_FS=y I've browsed through a lot of threads relating to problems mounting the root filsystem from RAM but I failed to see a similar symptom to this, with a response. I would appreciate any suggestion from perhaps somebody that has gone through this problem already. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
405EP peripheral memory access
I would recommend you get the following books. Embedded Linux: Hardware, Software, and Interfacing by Craig Hollabaugh Linux Device Drivers, 2nd Edition by Alessandro Rubini, Jonathan Corbet Building Embedded Linux Systems by Karim Yaghmour -Original Message- From: Paul Miller [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 29, 2003 9:08 AM To: linuxppc-embedded at lists.linuxppc.org Subject: 405EP peripheral memory access Hi, I am new to Linux embedded programming. I have experience programming microcontrollers and DSPs without an operating system, so I have some idea what I'm doing. Anyhow, I'm trying to use the peripheral memory bus on my 405EP CerfCube from Intrinsyc. Does anyone have an example that I can work from? To setup the memory's timings, I need access to the DCR register. In the PowerPC datasheet it says to use assembly instructions mtdcr and mfdcr. I don't know much about assembly, but I found a kernel patch that uses these functions. So, working off this patch, I tried making a simple program to read these registers. When I run it, Linux reports an Illegal instruction and doesn't let me access the register. Does access to this bus need to be done in kernel mode? If so, where can I find more information about writing a kernel driver? Ideally, I'd like to just open a device file and read/write to the bus. Thanks! -Paul ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
PCI graphics cards for 405-based system
sensoray make a nice one. -Original Message- From: llandre [mailto:r[EMAIL PROTECTED] Sent: Wednesday, October 22, 2003 11:34 AM To: linuxppc-embedded at lists.linuxppc.org Subject: PCI graphics cards for 405-based system Hi all, I'm looking for PCI graphics cards to plug in a 405-based system. Anybody can suggest me boards that are supported by the 4xx processors? Many thanks in advance and best regards, llandre ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
mpc8xx memory mapped 16550 extrenal uart driver
It's already in there. drivers/char/serial.c -Original Message- From: Lokesh Kumar [mailto:[EMAIL PROTECTED] Sent: Friday, October 03, 2003 9:02 AM To: 'linuxppc-embedded at lists.linuxppc.org' Subject: mpc8xx memory mapped 16550 extrenal uart driver Hi gurus, Does anybody know of a driver for an external 16550 memory mapped uart driver for an mpc855 based board? Any help is appreciated? Lokesh Kumar Wireless Matrix USA Inc. 703-262-4032 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
mpc8xx memory mapped 16550 extrenal uart driver
You can do the mapping anywhere you want, anywhere you do specific board initialization is a good spot. Check out arch/ppc/platforms/sandpoint_setup.c arch/ppc/platforms/sandpoint_serial.h for an example on setting up the serial device. -Original Message- From: Lokesh Kumar [mailto:[EMAIL PROTECTED] Sent: Friday, October 03, 2003 9:26 AM To: 'Steven Blakeslee'; Lokesh Kumar; 'linuxppc-embedded at lists.linuxppc.org' Subject: RE: mpc8xx memory mapped 16550 extrenal uart driver Hi Steven, Thanks for the quick reply. I did look at serial.c, however, i did not find where do we map the device to the memory i.e. where are we doing chip select setting and stuff. I saw that being done for CONFIG_SERIAL_TTTECH. Is that what you are referring to or I am missing the point completely? Lokesh -Original Message- From: Steven Blakeslee [mailto:[EMAIL PROTECTED] Sent: Friday, October 03, 2003 9:16 AM To: 'Lokesh Kumar'; 'linuxppc-embedded at lists.linuxppc.org' Subject: RE: mpc8xx memory mapped 16550 extrenal uart driver It's already in there. drivers/char/serial.c -Original Message- From: Lokesh Kumar [mailto:[EMAIL PROTECTED] Sent: Friday, October 03, 2003 9:02 AM To: 'linuxppc-embedded at lists.linuxppc.org' Subject: mpc8xx memory mapped 16550 extrenal uart driver Hi gurus, Does anybody know of a driver for an external 16550 memory mapped uart driver for an mpc855 based board? Any help is appreciated? Lokesh Kumar Wireless Matrix USA Inc. 703-262-4032 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
MPC823 and LCD?
It should work on all 823E boards. Specific support for your LCD may be required. -Original Message- From: Steven Scholz [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 30, 2003 7:18 AM To: Steven Blakeslee Cc: Linuxppc-Embedded Subject: Re: MPC823 and LCD? Steven, 1. Has someone a working driver for linux 2.4.20? check out drivers/video/rpxfb.c Thanks for that hint. Is this driver in any way special to RPX boards? Or could we make it available to other MPC823 boards as well? IIRC the lcd823.c driver in DENX kernel is quite generic. Thanks, Steven ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
MPC823 and LCD?
check out drivers/video/rpxfb.c -Original Message- From: Steven Scholz [mailto:[EMAIL PROTECTED] Sent: Monday, September 29, 2003 11:52 AM To: Linuxppc-Embedded Subject: MPC823 and LCD? Hi there, two questions about MPC823 and LCD: 1. Has someone a working driver for linux 2.4.20? 2. what's the difference between lcd823.c and video823.c in linux-2.4.4 from DENX? Thanks, Steven ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
64-bit Data Flash Access Problem [MPC8245]
Are you sure you are not using software floating points? -Original Message- From: Augustine Nebu Philips [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 24, 2003 1:05 PM To: linuxppc-embedded at lists.linuxppc.org Subject: 64-bit Data Flash Access Problem [MPC8245] Hi I have a set of 8 1GB data flash chips (Samsung) on an MPC8245 Ref. Board. These are on a 64-bit bus-mode. ---DBUS_SIZ[0-1]:DBUS_SIZ[2] = 110b --- All 8 chips are selected by a single chip select (RCS1). Trying a 32-bit read from the Data Address Location after giving the Command to Access the flash IDs, only 4 flashes on a common byte lane seem to be responding. 32-bit writes appear only on the DH[0-31] and not on DL[0-31]. I am not very clear as to: (a) How do we perform writes to send out data out on all 64-bits of the bus..? (b) How would we ideally access 64-bit data through 32-bit reads..? (c) Or must we *have* 64- bit read/write instructions..? many thanks in advance for any response .. Regards Nebu Need a new email address that people can remember Check out the new EudoraMail at http://www.eudoramail.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
64-bit Data Flash Access Problem [MPC8245]
It sounded like the problem you were describing is caused by software floating points. If the bus size is 64bit then you must write 64bit. Software floating points cheat this by doing two consecutive 32bit writes, the 8245 will not allow this. -Original Message- From: Augustine Nebu Philips [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 24, 2003 1:35 PM To: linuxppc-embedded at lists.linuxppc.org Subject: RE: 64-bit Data Flash Access Problem [MPC8245] Steve, I tried to use fp assembly instructions (like lfd). But my assembler has problems and doesnt let me generate my binary. I'm sorry I couldnt properly get you... Should I make use of sw floating points..? That means, should I access 64-bit data only through 64-bit operations..? Thanks and Regards Nebu - Original Message - DATE: Wed, 24 Sep 2003 13:31:50 From: Steven Blakeslee [EMAIL PROTECTED] Are you sure you are not using software floating points? Subject: 64-bit Data Flash Access Problem [MPC8245] Hi I have a set of 8 1GB data flash chips (Samsung) on an MPC8245 Ref. Board. These are on a 64-bit bus-mode. ---DBUS_SIZ[0-1]:DBUS_SIZ[2] = 110b --- All 8 chips are selected by a single chip select (RCS1). Trying a 32-bit read from the Data Address Location after giving the Command to Access the flash IDs, only 4 flashes on a common byte lane seem to be responding. 32-bit writes appear only on the DH[0-31] and not on DL[0-31]. I am not very clear as to: (a) How do we perform writes to send out data out on all 64-bits of the bus..? (b) How would we ideally access 64-bit data through 32-bit reads..? (c) Or must we *have* 64- bit read/write instructions..? many thanks in advance for any response .. Regards Nebu Need a new email address that people can remember Check out the new EudoraMail at http://www.eudoramail.com Need a new email address that people can remember Check out the new EudoraMail at http://www.eudoramail.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
mpc8xx CPM timer usage
The usb driver at http://www.heeltoe.com/software/usb/usb.html uses the timers. -Original Message- From: Robin Gilks [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 11:42 PM To: linuxppc mail list Subject: mpc8xx CPM timer usage Greetings Does anyone know of any 'standard' Linux drivers that make use of any of the 4 CPM timers? I just want to check before the hardware guys caste our i/o lines into stone :-)) Many thanks -- Robin Gilks Senior Design Engineer Phone: (+64)(3) 357 1569 Tait ElectronicsFax : (+64)(3) 359 4632 PO Box 1645 ChristchurchEmail : robin.gilks at tait.co.nz New Zealand ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Heretical Question
ddd will let you specify a gdb debugger to use. You have to add -g -ggdb to the CFLAGS and compile the kernel. Then give the command ddd --debugger ppc_8xx-gdb vmlinux Replace ppc_8xx-gdb with your debugger of choice, gdb is the default if you do not specify. -Original Message- From: Kent Borg [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 09, 2003 3:57 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Heretical Question I know it is wrong for me to ask, but is there (possibly already lurking in my Red Hat box?) a graphical front end to GDB that will work with embedded programming? Emacs already lets me debug with source code pretty well (not assembly, however), and that is nice, but what I really miss is a way to browse through data structures. Kdbg looks good, but it seems to be for native debugging only (though I might hack at it a little to issue the elusive target remote ...). It is possible ddd would do, but it also seems to be for native debugging only too. Suggestions? Thanks, -kb ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Heretical Question
I've used insight on cygwin with an Abatron BDI 2000. It seemed to work ok. -Original Message- From: Kenneth Johansson [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 09, 2003 4:53 PM To: Kent Borg Cc: linuxppc-embedded at lists.linuxppc.org Subject: Re: Heretical Question On Wed, 2003-07-09 at 21:57, Kent Borg wrote: I know it is wrong for me to ask, but is there (possibly already lurking in my Red Hat box?) a graphical front end to GDB that will work with embedded programming? Emacs already lets me debug with source code pretty well (not assembly, however), and that is nice, but what I really miss is a way to browse through data structures. Kdbg looks good, but it seems to be for native debugging only (though I might hack at it a little to issue the elusive target remote ...). It is possible ddd would do, but it also seems to be for native debugging only too. Suggestions? http://sourceware.redhat.com/insight/ Never tried but since this is the old cygnus stuff it really should do cross debugging well. -- Kenneth Johansson Ericsson AB Tel: +46 8 719 70 20 Tellusborgsv?gen 90 Fax: +46 8 719 29 45 126 25 Stockholm ken at switchboard.ericsson.se ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Problems in booting kernel from bootloader.
Also, make sure the SYPCR is disabled. -Original Message- From: Muhammad Sarwar [mailto:[EMAIL PROTECTED] Sent: Thursday, July 03, 2003 8:14 AM To: nbasker at india.tejasnetworks.com; linuxppc-embedded at lists.linuxppc.org Subject: RE: Problems in booting kernel from bootloader. If you are using EP8260 version 1.3, you need to enable PIPELINE in the planet core boot loader. In planet core: PIPELINE=1 STO Regards, Muhammad Sarwar Mangrove Systems Inc. -Original Message- From: [EMAIL PROTECTED] [mailto:nbasker at india.tejasnetworks.com] Sent: Wednesday, July 02, 2003 11:18 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Fwd: Problems in booting kernel from bootloader. Hi, I am having an EP8260 board. And I got a zImage binary from TimeSys linux(2.4.7). The board comes with a bootloader and diagnostics. The TimeSys linux gives me a binary called zImage.initrd.bin-2.4.7-timesys-3.1.180-ep8260. I am trying to boot the kernel using the bootloader given by the PlanetCore guys. The kernel was the one which I got from TimeSys. But this kernel doesn't come up(It hangs). Then I tried modifying a few lines of assembly code(arch/ppc/boot/mbx/head_8260.S) to find the problem. The board always goes for a reset when I run my code. I get the initial prints regarding the loaded at: 0080 0080C27C relocated to: 0040 0040C27C board data at: F0003000 F0003034 relocated to: 0040C148 0040C17C zimage at: 0080C27C 008C6253 avail ram: 008C7000 0400 And then the Uncompress kerneland Now booting kernel prints are seen and then the board goes for a reset. The embed_config, decompress_kernel functions are run correctly. I could come to this conclusion from the dump of the first few bytes of memory. These were exactly identical to the disassembled code of vmlinux. The head_8260.S is followed by the head.S code in arch/ppc/kernel. What I found is that I am able to jump to the diagnostics of the PlanetCore just before entering the _start of arch/ppc/kernel. But I am not able to jump to the diagnostics just after entering the _start of the kernel head.S. How do I debug this problem, I know that the first few bytes of SDRAM are exactly what was expected. These values I dumped. Then what is the problem in jumping to that location. With my binary, the board goes for a reset. Please help. Nicholas - This mail sent through Tejasnetworks Webclient ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
EP405 network interface
You need to look at the board's user manual. There is a section called Board Control and Status Registers -Original Message- From: Toni Van Remortel [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 02, 2003 10:25 AM To: Steven Blakeslee Cc: PPC Mailinglist Subject: RE: EP405 network interface How and where? I found that the PHY address in the manual is 0b0 and in the code PPC405_PCI_PHY_MEM_BASE is set to 0x8000. Op do 26-06-2003, om 20:39 schreef Steven Blakeslee: Did you enable the phy in the Board Control Status Register? -Original Message- From: Toni Van Remortel [mailto:t.vanremortel at ha.be] Sent: Thursday, June 26, 2003 10:01 AM To: PPC Mailinglist Subject: EP405 network interface Hi all, I cannot get the NIC working on my EP405. I used the ep405_config from the linuxppc_2_4_devel tree. This is a part of the output: ... loop: loaded (max 8 devices) eth0: No PHY device found. removing net dev ... So it seems that the kernel doesn't find the NIC (but it is there, and working, ep-bootloader can use it to download the image). Anybody an idea? I already checked the NIC support, and the onboard-IBM NIC support is enabled. Regards, -- Toni Van Remortel Wetenschappelijk Medewerker - D-science lab Tel: 03 205 61 72 - Fax: 03 205 61 95 E-mail: t.vanremortel at ha.be ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
EP405 network interface
Did you enable the phy in the Board Control Status Register? -Original Message- From: Toni Van Remortel [mailto:[EMAIL PROTECTED] Sent: Thursday, June 26, 2003 10:01 AM To: PPC Mailinglist Subject: EP405 network interface Hi all, I cannot get the NIC working on my EP405. I used the ep405_config from the linuxppc_2_4_devel tree. This is a part of the output: ... loop: loaded (max 8 devices) eth0: No PHY device found. removing net dev ... So it seems that the kernel doesn't find the NIC (but it is there, and working, ep-bootloader can use it to download the image). Anybody an idea? I already checked the NIC support, and the onboard-IBM NIC support is enabled. Regards, -- Toni Van Remortel Wetenschappelijk Medewerker - D-science lab Tel: 03 205 61 72 - Fax: 03 205 61 95 E-mail: t.vanremortel at ha.be ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Booting CLLF ppc862 board from flash
The Embedded Planet boards ship with a documentation CD that contains an executable called the Planet Core FLASH burner. This program will allow you to burn the Linux kernel to FLASH. Most Linux kernels have a small boot section that is smart enough to copy the kernel to the location it was compiled for and boot it. -Original Message- From: XOL [mailto:[EMAIL PROTECTED] Sent: Sunday, June 01, 2003 7:02 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Booting CLLF ppc862 board from flash Hello. Sorry for my probably stupid question. I'm new in embedded field. I have CLLF ppc862 board from EmbeddedPlanet. I have it running booting from tftp with root fs NFS mounted on one of the desktop Linux PC. Now I want to get it running in standalone mode from Flash. My board has PCMCIA connector with Flash Card adapter. I have flash card of 64K. Also there are on-board flash 64K and 32K RAM. Are there any step-by-step howto about this issue. Thank you in advance. Best Regards. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Embedded Planet SBC860H
The EP8xx is the same as a CLLF BW31 but it has SDRAM instead of DRAM. -Original Message- From: Karim Yaghmour [mailto:[EMAIL PROTECTED] Sent: Friday, May 30, 2003 1:42 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Embedded Planet SBC860H I was wondering whether anyone had experience running Linux and U-Boot on an Embedded Planet SBC860H? I suppose it ought to be quite similar to the RPX boards ... I just don't see an SBC860H item in the kernel config or in U-Boot ... so just making sure. Thanks, Karim -- Author, Speaker, Developer, Consultant Pushing Embedded and Real-Time Linux Systems Beyond the Limits http://www.opersys.com || karim at opersys.com || 514-812-4145 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
BDI2000 config repository
ftp://ftp.denx.de/pub/BDI2000/ -Original Message- From: Curtis, Allen [mailto:[EMAIL PROTECTED] Sent: Friday, May 09, 2003 2:03 PM To: 'linuxppc-embedded at lists.linuxppc.org' Subject: BDI2000 config repository I know there was talk about this, is there a repository for BDI2000 platform configuration files? ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
MPC860 and I2C
Are you sure you need to use the relocation patch? -Original Message- From: Eitan Rabin [mailto:[EMAIL PROTECTED] Sent: Thursday, May 08, 2003 3:04 PM To: linuxppc-embedded at lists.linuxppc.org Subject: MPC860 and I2C Hi All, I'm trying to use the MPC I2C controller to generate I2C transactions. I use the devel kernel version and include the I2C relocation patch (seen in /var/log/messages). I used the standard I2C driver and also tried the driver downloaded directly from lmsensors. The problem occurs when I activate the master. As soon as I give the master the start command (i2c-i2c_i2com = 0x80) for the DMA transaction to start the CPU complete freezes. I narrowed the problem and found out the it is actually the address of the descriptor the one causing the CPU to hang. If I give addresses that are relatively small, few Kilos, then everything is OK. If I give addresses that are given to me by kmalloc and translated properly then the cpu hangs. It seems to me that maybe something is wrong with the SDMA configuration. The cards I'm using are CLLF from embedded planet. Any assistance will be highly appreciated. Thanks. Eitan. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Kernel panic: eth0: PHY id 0x31903190 is not supported!
I've booted the linuxppc_2_4_devel tree on the EP405PC and the ethernet worked fine. -Original Message- From: Andrew H Pham [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 30, 2003 5:43 PM To: linuxppc-embedded at lists.linuxppc.org; akuster at mvista.com; BlakesleeS at embeddedplanet.com Subject: Kernel panic: eth0: PHY id 0x31903190 is not supported! Hi, I loaded a 2.4.18 linux kernel onto my ICE Planet box ( a PPC box with EP 405PC board and a 405GP chip) but when the kernel uncompresses itself and tries to start up I got the an error message: A screen shot: ... relocated to: 00494128 00494144 zimage at: 004059F8 00493747 avail ram: 00498000 0400 Linux/PPC load: console=ttyS0,9600 console=tty0 init=/bin/ash root=/dev/nfs nfsp Uncompressing Linux...done. Now booting the kernel Linux version 2.4.18-rc4 (root at sunflower2.austin.ibm.com) (gcc version 3.2.3 203 On node 0 totalpages: 16384 zone(0): 16384 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: console=ttyS0,9600 console=tty0 init=/bin/ash root=/dev/nfp Calibrating delay loop... 199.88 BogoMIPS Memory: 63124k available (1004k kernel code, 292k data, 72k init, 0k highmem) 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 PCI: Probing PCI hardware Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd NTFS driver v1.1.22 [Flags: R/O] i2c-core.o: i2c core module Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI ed ttyS00 at 0xef600300x (irq = 0) is a 16550A ttyS01 at 0xef600400x (irq = 1) is a 16550A block: 128 slots per queue, batch=32 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: loaded (max 8 devices) Kernel panic: eth0: PHY id 0x31903190 is not supported! 0Rebooting in 180 seconds..NULL PPC4xx PlanetCore Boot Loader v1.07 Copyright 1998-2003 Embedded Planet, LLC. All rights reserved. ... I did some debuggings and found that the error message eth0: PHY id 0x31903190 is not supported! is generated by the file ibm.ocp_phy.c within the kernel source code. Has anyone encountered this problem before? I am just curious if my ethernet card is bad or it is not supported by this kernel. Any help is appreciated. Andy p.s. ibm.ocp.phy.c is attached below. (See attached file: ibm_ocp_phy.c) ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Start address for ICE Planet, EP405PC
If you are using an srec or binary file then the start address is the same as the one you load to. If you are using an elf file the start address is the load address + 0x1. -Original Message- From: Andrew H Pham [mailto:[EMAIL PROTECTED] Sent: Friday, April 25, 2003 6:01 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Start address for ICE Planet, EP405PC Hi, I am trying to tftp load a kernel image into memory and boot it; however, I don't know what address to set the Start variable to. Start is the address where the boot loader goes to and executes when you issues the go command using the boot loader v1.03 In another the word, does anyone know what is the offset is for the ppc kernel? Let say the image is stored starting at address 20, what address should i jump to so execution can begin (200???)? Thanks in advance for any help, Andy ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
SPI again
Actaully you are using the I2C. Early in the boot Linux uses the I2C to read configuration keys from the onboard EEPROM. -Original Message- From: Stefano Bodini [mailto:[EMAIL PROTECTED] Sent: Friday, April 18, 2003 11:26 AM To: 'linuxppc-embedded at lists.linuxppc.org' Subject: SPI again Hi I spent a lot of time searching on the net and in this mailing list about a problem I'm having with the SPI but so far the information I found didn't help me too much (I found great suggestions anyway)... I really needs suggestions. I'm working on an Embedded Planet Card (CLX), PPC860 with the kernel 2.4.17 from MontaVista (Hard Hat Pro 2.1). I'm developing a kernel module that include also the SPI, i.e. I have my code to handle the SPI, I'm not using the device driver for the SPI inside the kernel. So I'm using ioremap (I also used ioremap_nocache) to obtain the DPR and register area for the SPI, I allocate the BDs with the help of the m8xx_cpm_dpalloc() function (I've not yet applied the patches to allow the release of the DPR allocated, but at the moment is ok). Is important to know that the SPI management I'm trying to use under Linux, is working under other platforms (for example VxWorks, PsOS, MQX, ecc.), i.e. I'm confident about how to program and use the SPI itself. All seems ok, all the registers and DPR area contains the expected values. The problem is that when I fire the SPI I can see only 1 clock coming out on the SPICLK pin. And no data are sent out to the other SPI pins. Ah, the Hw is ok. Same hardware with different platform/OS is working fine. I tried to compile the kernel with and without the RISC patches for the SPI (beside I'm using SCC1 for ethernet and not using I2C at all) and of course modifying the SPI driver accordingly. No way, I continue to see only 1 clock coming out every time I fire the SPI. So .. anybody has some suggestions about what can be ? Thanks in advance !!! C'ya Steve ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Linux training
I was wondering if anyone can direct me to training courses on porting embedded Linux to single board computers. Thank you for any direction and I welcome all comments. Steven Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
USB on RPXLite-DW w/ ppc-823e + ELDK
If you look at Board Control Status Register 2 of the LITE DW you will see that bit 21 allows you to route PA7 to PC15. This allows you to apply a 1KHz signal on PC15. The microcode patch uses this 1KHz signal to generate an SOF. -Original Message- From: curt brune [mailto:[EMAIL PROTECTED] Sent: Monday, March 24, 2003 9:10 PM To: Linuxppc-Embedded (E-mail) Subject: USB on RPXLite-DW w/ ppc-823e + ELDK Hello, I am trying to get USB working on an RPXLite board with a 823e processor. I am using the ELDK 2.4.4 kernel from CVS -- in arch/ppc/8xx_io/ I see several files (uart.c, micropatch.c, etc.) that depend on CONFIG_USB_MPC8xxx, but I do not see how to set CONFIG_USB_MPC8xxx from make menuconfig. I am also wondering about a potential hardware modification required to make the USB work on the RPXLite -- from a previous posting to this list I read: The 823e, and newer 850 (Rev. B) processors have some modifications to better allow USB host support. These require some external support (looping a clock back to the I/O pin) and the downloading of a microcode patch for properly generating SOF timing. Is this modification still necesarry? Does anyone know the details? Cheers, Curt ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
SCC3 UART for MPC850
Are you sure that particular variant of the 850 processor has an SCC3? -Original Message- From: Donald MacArthur [mailto:[EMAIL PROTECTED] Sent: Monday, March 03, 2003 8:53 AM To: linuxppc-embedded at lists.linuxppc.org Subject: SCC3 UART for MPC850 I am currently working with an embedded planet LICCE MPC850 Credit card board with the associated MPC860 Timesys Linux Kernel. I would like to use as many SCC and SMC channels for UARTs as possible. I have successfully enabled SMC1, SMC2, and SCC2 for UART but SCC3 does not work. Normally for the UART channels the TX lines go high when the kernel boots but the SCC3 Tx channel does not. Does anyone know of modifications required for the kernel to get SCC3 to work as a UART or were possible conflicts might arise? Thank You Don MacArthur dmacarth at ufl.edu ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Good Books
I highly recommend this book. -Original Message- From: Dr. Craig Hollabaugh [mailto:[EMAIL PROTECTED] Sent: Thursday, February 27, 2003 9:24 PM To: john at corelis.com; linuxppc-embedded at lists.linuxppc.org Subject: Re: Good Books At 05:05 PM 2/27/2003 -0800, John Chan wrote: Hello, Folks, I am looking for reference books which are related to PPC 440GP or/and embedded PPC or/and Linux on PPC. Do you have any suggestion? John, My book, Embedded Linux: Hardware, Software and Interfacing, uses a PPC860 (Embedded Planet RPX-CLLF) in numerous interfacing examples. This might help with general PPC issues, not specifically the 440 though. Craig ___ Dr. Craig Hollabaugh craig at hollabaugh.com Author of Embedded Linux P.O. Box 1405 Ouray, CO 81427-1405See my kitchen sink resume at 970 325 4810 homewww.hollabaugh.com/resume.html 970 325 0509 office ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Hung kernel on EP405?
I have used the http://ppc.bkbits.net:8080/linuxppc_2_4_devel tree on the ep405. I have a .config file if you would like it. -Original Message- From: [EMAIL PROTECTED] [mailto:Phillip.Treddenick at colorado.edu] Sent: Sunday, February 16, 2003 2:38 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Hung kernel on EP405? I am having trouble running Monta Vista Hardhat Linux on an EP405 board with Solaris 2.7 as the host. I'm using the Planetcore bootloader to download the kernel to the board, but when I run the kernel it appears to hang. I would like to know if there is a way to verify what it's doing? I've tried rlogin and I've tried pinging it, but I don't get any response. The kernel is setup to mount a NFS, but I don't know how to verify that that is working either. I tried enabling the ethernet port by setting the board control and status registers. That didn't seem to work. Do these registers have specific settings necessary for running the EP405 board? Any help or insight is appreciated. Thanks, Phill Treddenick treddeni at colorado.edu ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
question about first packet received by mpc8260
I've done a search of the mailing list but I did not find anything related to my question. I have found on my companies MPC 8260 board that the first packet sent to the Ethernet when initialized is never received. At first I thought the network interface had not come up fully so I put a large delay between the FCC3 Ethernet init and the reading for the first packet. Also, I have tried reading packets for several seconds then sending it a packet, it still does not receive it. It seems to receive every packet after the first one. Has anyone seen something like this. Thank you, Steven Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Arriba ELE
The company I work for decided not to resell Arriba. It is overly complicated and not very stable. Instead of developing Linux on a Windows computer invest in a Linux computer and a BDI2000. -Original Message- From: Kerl, John [mailto:[EMAIL PROTECTED] Sent: Thursday, February 06, 2003 12:13 PM To: 'linuxppc-embedded at lists.linuxppc.org' Subject: Arriba ELE Can anyone comment on Arriba Embedded Linux Edition from Viosoft? Any positive or negative experiences? Thanks. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Howto install bootloader using jtag?
The first thing you do is create an appropriate config file for the debugger and board. If you go to ftp://ftp.denx.de/pub/BDI2000/ you can get Abatron BDI config files for the ep405 board. You run this script then download the pcl.ep file that is on the documentation CD. This file executes at location 0x10 and will burn the bootloader into flash. It is important to note that the JTAG/COP connector on the ep405 ships with the COP enabled, not the JTAG. There is very little difference between JTAG and COP but this can mess people up under certain circumstances. I have used the Abatron BDI 2000, Macraigor RAVEN, Macraigor OCDemon and the IBM RiscWatch. -Original Message- From: Michael Washburn [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 29, 2003 10:51 PM To: nitesh_ppc at lycos.com; linuxppc-embedded at lists.linuxppc.org Subject: Re: Howto install bootloader using jtag? Depending on what JTAG debugger you're using, there should be a way to download and execute the S-Rec file (usually a .mot file). The bootloader file provided by Emdedded Planet is actually an executable that contains the boot loader image. You should be able to download and execute it in one simple step. Mike Washburn - Original Message - From: Nitesh Goyal [EMAIL PROTECTED] To: linuxppc-embedded at lists.linuxppc.org Sent: Wednesday, January 29, 2003 9:45 PM Subject: Howto install bootloader using jtag? Hi, I'm using a IBM PPC 405GP board(from embeddedplanet) I accidently deleted the bootloader. I have the bootloader srecord image on my host, but I do not know how to burn it on board using JTAG ? Is there a utility available that I can use on host to download the bootloader image to tbe board ? Thanks, NItesh ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Can software discover MPC8xx variant?
Or you could set it in some type of data structure in your bootloader. No hardware change this way. -Original Message- From: Leonardo Pereira Santos [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 29, 2003 11:30 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Re: Can software discover MPC8xx variant? As the 8xx family is supported by the kernel, I assume that what you want is to know if the 8xx processor running supports some feature? If this is the case, I can tell you how to do it the way I'd. You can define some ioport with pull-up and pool-down resistors and in the manufacturing process specifiy if this board is for product A, then you should use MPC850DSL and you will mount some of the pull-ups and pull-downs. If the board is for product B, then you should mount MPC850SAR and mount differently the pull-ups and downs. By reading the value on the selected pins, you might de able to know what board this is. This scheme can also be used to know what hardware revision your board have. On Wednesday 29 January 2003 12:13, Marius Groeger wrote: On Wed, 29 Jan 2003, Alex Zeffertt wrote: Can anybody tell me if there is a way to identify which processor from the MPC8xx family software is running on. I hoped I could use the IMMR special purpose register. However, this only tells you the silicon revision, which can have the same value even if the processors are different! Does the processor type (e.g. 862, 857T, 857DSL) reside anywhere in the processor? U-Boot/PPCboots cpu/mpc8xx/cpu.c contains a lot of generic type detection code, but even there the assumes that the basic type is known at compile time. Regards, Marius --- -- Marius Groeger SYSGO Real-Time Solutions AG mgroeger at sysgo.de Software Engineering Embedded and Real-Time Software www.sysgo.de Voice: +49-6136-9948-0 Am Pfaffenstein 14 www.osek.de FAX: +49-6136-9948-10 55270 Klein-Winternheim, Germany www.elinos.com - -- Leonardo Pereira Santos Engenheiro de Projetos PD3 Tecnologia av. Par? 330/202 (51) 3337 1237 Today Fortune tells us: Are you scared of speed? If so, try Windows NT. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Can software discover MPC8xx variant?
I'm guessing you've never worked with a contract manufacturer. :) jk -Original Message- From: Leonardo Pereira Santos [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 29, 2003 12:15 PM To: Steven Blakeslee Cc: linuxppc-embedded at lists.linuxppc.org Subject: Re: Can software discover MPC8xx variant? Ok, but in this case the hardware itself wouldn't know waht revision or whatever it is. And they already have to change the processor, so you have to change the hardware anyway, mount or not a few resistors shouldn't be hard. On Wednesday 29 January 2003 15:02, you wrote: Or you could set it in some type of data structure in your bootloader. No hardware change this way. -Original Message- From: Leonardo Pereira Santos [mailto:lsantos at pd3.com.br] Sent: Wednesday, January 29, 2003 11:30 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Re: Can software discover MPC8xx variant? As the 8xx family is supported by the kernel, I assume that what you want is to know if the 8xx processor running supports some feature? If this is the case, I can tell you how to do it the way I'd. You can define some ioport with pull-up and pool-down resistors and in the manufacturing process specifiy if this board is for product A, then you should use MPC850DSL and you will mount some of the pull-ups and pull-downs. If the board is for product B, then you should mount MPC850SAR and mount differently the pull-ups and downs. By reading the value on the selected pins, you might de able to know what board this is. This scheme can also be used to know what hardware revision your board have. On Wednesday 29 January 2003 12:13, Marius Groeger wrote: On Wed, 29 Jan 2003, Alex Zeffertt wrote: Can anybody tell me if there is a way to identify which processor from the MPC8xx family software is running on. I hoped I could use the IMMR special purpose register. However, this only tells you the silicon revision, which can have the same value even if the processors are different! Does the processor type (e.g. 862, 857T, 857DSL) reside anywhere in the processor? U-Boot/PPCboots cpu/mpc8xx/cpu.c contains a lot of generic type detection code, but even there the assumes that the basic type is known at compile time. Regards, Marius --- -- Marius Groeger SYSGO Real-Time Solutions AG mgroeger at sysgo.de Software Engineering Embedded and Real-Time Software www.sysgo.de Voice: +49-6136-9948-0 Am Pfaffenstein 14 www.osek.de FAX: +49-6136-9948-10 55270 Klein-Winternheim, Germany www.elinos.com - -- Leonardo Pereira Santos Engenheiro de Projetos PD3 Tecnologia av. Par? 330/202 (51) 3337 1237 Today Fortune tells us: Are you scared of speed? If so, try Windows NT. - -- Leonardo Pereira Santos Engenheiro de Projetos PD3 Tecnologia av. Par? 330/202 (51) 3337 1237 Today Fortune tells us: Is knowledge knowable? If not, how do we know that? ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
wireless lan PCMCIA card advice
I've heard of success with the Cisco Aironet 340. -Original Message- From: curt brune [mailto:[EMAIL PROTECTED] Sent: Monday, January 06, 2003 3:51 PM To: linuxppc-embedded at lists.linuxppc.org Subject: wireless lan PCMCIA card advice Hello, I have a RPXLite 823e based board from EmbeddedPlanet that has an open PCMCIA slot in it. Currently I am booting a 2.4.4 kernel from ELDK which works just fine. I would like to buy a wireless 802.11b PCMCIA card for this board and am wondering about any past experiences. I have researched the general linux+WiFi webistes a bit, but I wanted the embedded society's opinion also. Any success stories out there? If so could you include the following info? embedded board: PCMCIA hardware: PCMCIA vendor: driver used: kernel version: I appreciate your help. Please CC: me on the replies. Cheers, Curt ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
use bdi on board with ppcbug
Good point. -Original Message- From: Wolfgang Denk [mailto:[EMAIL PROTECTED] Sent: Friday, December 20, 2002 12:11 PM To: Steven Blakeslee Cc: ??; linuxppc-embedded at lists.linuxppc.org Subject: Re: use bdi on board with ppcbug In message D73A25AA6E54D511AD74009027B1110F3C050D at ORION you wrote: Also, wouldn't the INIT section of the config script have to be empty? This depends on the hardware. On many boards a minimal initialization MUST be performed (like switching off the watchdog timer :-) Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de Wish not to seem, but to be, the best. - Aeschylus ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
823 Video Controller Driver - where ?
We have Linux frame buffer drivers for our 823E(LITE DW) and our IBM405GP(EP405PC). -Original Message- From: Wolfgang Denk [mailto:[EMAIL PROTECTED] Sent: Friday, December 13, 2002 11:43 AM To: Steve Rossi Cc: Embedded Linux PPC List Subject: Re: 823 Video Controller Driver - where ? Dear Steve, in message 3DFA05C3.30703 at ccrl.mot.com you wrote: I've seen some reference on the list regarding a driver for the 823 Video Controller - i.e. http://lists.linuxppc.org/results.html?restrict=linuxppc-embeddedwords=vid8 23 however I've been unable to locate the source to vid823.c It is my understanding that this driver is available with and for some EP board only, and obviously not available for free. apparently this question was asked before: http://lists.linuxppc.org/linuxppc-embedded/200201/msg00164.html and the answer was that its in the 2_4_devel tree, but I was unable to find it in a recent snapshot of the tree (I'm unable to get the tree I haven't found anything either when I searched some time ago. I'm looking for a driver for the video controller to output to an NTSC encoder. Am I just missing something? Anyone know where I can get vid823.c (or whatever it might be called now) and whether its a true framebuffer driver? We have a video controller driver in our source tree (module linux-2.4 on our CVS server), see arch/ppc/8xx_io/video823.c Note: the code relies on some initialization performed by the U-Boot boot loader, and it has never been tested yet with NTSC. But it should be a starting point at least. And yes, it is a true framebuffer driver, although it uses the awkward YUYV video mode format only. Hope this helps. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de God may be subtle, but He isn't plain mean. - Albert Einstein ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Embedded Planet RPX LICC_E board and Timesys
I built the Timesys Linux for the 850 and ran it on a LICC_E, it booted into the initrd just fine. -Original Message- From: Donald MacArthur [mailto:[EMAIL PROTECTED] Sent: Friday, December 06, 2002 7:25 AM To: linuxppc-embedded at lists.linuxppc.org Subject: Embedded Planet RPX LICC_E board and Timesys I am currently working on a research project involving the RPX MPC850SR LICC_E board from Embedded Planet. I tried the BSP provided by Timesys for the 850 but after tftping the image to the board and 'go' nothing happened. I spoke to the reps from timesys and embedded planet and found that the 850 BSP was compiled for the LITE_CW versions of the Embedded Planet boards. These differed due to the existence of NVRAM and an RTC. I recompiled the kernel using several different configurations and was able to get the kernel to boot when the NVRAM option was turned off. I can boot the kernel and load the NFS root with the initrd and ramdisk options turned off but when I enable these options, the kernel stops booting at the ramdisk creation. Can anyone provide any insight about this problem? Thank You Donald MacArthur dmacarth at ufl.edu ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Frozen ! any idea ?
Do you have the watch dog timer enabled? This could be the problem. -Original Message- From: Stefano Bodini [mailto:[EMAIL PROTECTED] Sent: Monday, November 25, 2002 2:45 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Frozen ! any idea ? Hi all ! I have (for me) a curious problem. I have an Embedded Planet RXP Classic credit card (ppc860) loaded with a 2.4.17 kernel (compiled with MontaVista Pro 2.1). I'm able to load correctly the kernel and the filesystem .. all is working just fine, but after 1 minute since the last command issued, the system just freeze. 1 minute without any command issued and the system is gone .. no errors, no messages, no logs, nothing. Just doesn't accept anymore commands .. even the echo on the tty port is gone. About the 1 minute value, I did some tests to figure out the timing and is more or less 1 minute. Up to 30-45 secs. and the system still react, after (50-70 secs) the system freeze. If you continue to issue commands the system doesn't freeze .. but it do it as long as you stop to issue commands. I tried to load also the default kernel image for that board .. same result. It seems a kind of watch dog or timer .. but I don't understand why all is frozen ! Any idea ? Thanks in advance C'ya Steve ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
EP405GP GPIO Control Question
It's in the Embedded Planet user manual under Board Control Status Registers. -Original Message- From: Crawford Matthew A [mailto:[EMAIL PROTECTED] Sent: Monday, November 11, 2002 6:16 PM To: linuxppc-embedded at lists.linuxppc.org Subject: EP405GP GPIO Control Question Does anyone out there know where I can find information on, or know how to control the output pins associated with the GPIO on this board? We are trying to write a small driver that will send a signal out to trigger some power measuring equipment. Thanks, Matt ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Linux Image
If you are using the serial port on the board then I would assume you have to use an srec format. -Original Message- From: Aman [mailto:[EMAIL PROTECTED] Sent: Monday, August 19, 2002 8:37 PM To: linuxppc-embedded at lists.linuxppc.org Subject: Linux Image Hi All I have an rom monitor code without ethernet support running on PPC440GP. Is it possible to download a linux image to the board using the Kermit protocol. If so what type of linux image has to build for that. Thanking you in advance Regards Aman ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
mpc8xx - power save modes - PIT
In the 850 user manual I found the following to describe the SCCR[DNFH]. Division factor high frequency. Sets the VCOOUT frequency division factor for general system clocks to be used in normal mode. In normal mode, the MPC850 automatically switches to the DFNH frequency. To select the DFNH frequency, load this ?eld with the divide value and clear CSRC. A loss-of-lock condition does not occur when this ?eld is changed. This ?eld is cleared by a power-on or hard reset. You have the following code. imp-im_clkrst.car_plprcr |= 121; // plprcr[csrc]=1 It seems like it should be cleared, not set. -Original Message- From: Patrick Mahoney [mailto:[EMAIL PROTECTED] Sent: Thursday, October 10, 2002 4:47 PM To: Steven Blakeslee Subject: Re: mpc8xx - power save modes - PIT I therefore conclude that the register MSB is in the variable LBS. Thats always goot to know! :) Thanks for the tip... ... but i still lose my console when i switch eith power mode or clock divider. Ex: /* Normal high mode * clock divider set to 2 * (sccr[dfnh]=110) */ imp = (immap_t *)IMAP_ADDR; imp-im_clkrst.car_sccr = ~(0x75); imp-im_clkrst.car_sccr |= 0x15; Would you happen to know why? Thanks again, Pat Mahoney On Thu, Oct 10, 2002 at 04:20:34PM -0400, Steven Blakeslee wrote: The line imp-im_clkrst.car_plprcr |= 121; seems to be incorrect. This line sets bit 10. If you are setting plprcr[csrc] you would do the following imp-im_clkrst.car_plprcr |= 0x80; The line imp-im_clkrst.car_plprcr = ~(0x322); seems to be incorrect. This line clears 9 and 8. If you want to clear PLPRCR[LPM] you would do the following imp-im_clkrst.car_plprcr = ~(0x100 | 0x200); -Original Message- From: Patrick Mahoney [mailto:pmahoney at 8d.com] Sent: Thursday, October 10, 2002 3:40 PM To: Steven Blakeslee Subject: Re: mpc8xx - power save modes - PIT That was supposed to be: /* Normal low mode */ imp = (immap_t *)IMAP_ADDR; imp-im_clkrstk.cark_plprcrk = ~KAPWR_KEY; imp-im_clkrstk.cark_plprcrk = KAPWR_KEY; imp-im_clkrst.car_plprcr |= 121; imp-im_clkrst.car_plprcr = ~(0x322); Sorry bout that. Thanks again, Pat Mahoney On Thu, Oct 10, 2002 at 03:33:19PM -0400, Patrick Mahoney wrote: Hi Steven, In my module's init_module function, i do: /* Normal low mode * ref: p. 14-21 of mpc850 ref book. */ imp = (immap_t *)IMAP_ADDR; imp-im_clkrstk.cark_sccrk = ~KAPWR_KEY;// unlock the imp-im_clkrstk.cark_sccrk = KAPWR_KEY; // register key imp-im_clkrst.car_plprcr |= 121; // plprcr[csrc]=1 imp-im_clkrst.car_plprcr = ~(0x322);// PLPRCR[LPM]=00 Did you succeed in toggling between power modes? Thanks for your support. Best regards, Pat Mahoney On Thu, Oct 10, 2002 at 03:19:58PM -0400, Steven Blakeslee wrote: What are you doing to put the processor into low power mode? What registers are you changing? -Original Message- From: Patrick Mahoney [mailto:pmahoney at 8d.com] Sent: Thursday, October 10, 2002 2:35 PM To: linuxppc-embedded at lists.linuxppc.org Subject: mpc8xx - power save modes - PIT Hello pple, My setup: MPC850 on a RPXlite_dw board. My problem: I am trying toggle between power saving modes and evaluate the current drops with an ampermeter. I succeeded in switching to several power modes, but each time i switch, my serial connection dies, even if i switch to the 'normal low mode', which is supposed to keep all functionnalities present. I am looking to use the PIT to automatically bring back the chip to normal full power mode. I tried the following: init_timer(timer); timer.expires=1000; timer.function=timer_handler; add_timer(timer); without success. The kernel oops'es everytime. Ive been browsing the kernel sources, but have yet to see where the PIT was initialized/used. Would anyone have successfully used the several power modes of the mpc850 (or equivalent) through linux 2.4? If so, is there any code snippet available? Also, do you have any idea as to why the serial connection dies? Is it a uart syncing -type problem? Best regards, Pat Mahoney ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
how to buitl ramdisk image..
In the documentation directory there is an initrd.txt file that explains how to make it. -Original Message- From: rekha gvv [mailto:[EMAIL PROTECTED] Sent: Thursday, October 10, 2002 6:09 AM To: linuxppc-embedded at lists.linuxppc.org Subject: how to buitl ramdisk image.. Hello all, I am using linux2.4.4 for fads860T can anyone tell me how to build an ramdisk.image.gz I made make zImage.initrd but it gave this error powerpc-linux-ld -T ../vmlinux.lds -Ttext 0x0018 -o zvmlinux.tmp head.o misc.o ../coffboot/zlib.o m8xx_tty.o powerpc-linux-objcopy -O elf32-powerpc -R .comment --add-section=image=../coffboot/vmlinux.gz \ zvmlinux.tmp zvmlinux rm zvmlinux.tmp powerpc-linux-ld -T ../vmlinux.lds -Ttext 0x0018 -o zvmlinux.initrd.tmp1 head.o misc.o ../coffboot/zlib.o m8xx_tty.o powerpc-linux-objcopy -O elf32-powerpc -R .comment \ --add-section=initrd=ramdisk.image.gz \ --add-section=image=../coffboot/vmlinux.gz \ zvmlinux.initrd.tmp1 zvmlinux.initrd1 powerpc-linux-objcopy: cannot stat: ramdisk.image.gz: No such file or directory make[1]: *** [zvmlinux.initrd] Error 1 make[1]: Leaving directory `/usr/src/linux-2.4.4-2002-03-21/arch/ppc/mbxboot' ___ bye! ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
ppcboot on rpxlite_dw mpc850
The RPXlite_config in ppcboot is for the Embedded Planet LITE CW not the DW. The CW is high boot and has DRAM, the DW is low boot and has SDRAM. -Original Message- From: Patrick Mahoney [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 25, 2002 2:49 PM To: ppcboot-users at lists.sourceforge.net; linuxppc-embedded at lists.linuxppc.org Cc: yooth at ipone.co.kr Subject: ppcboot on rpxlite_dw mpc850 Hello lists, Apologies for the crosspost. I believe both lists are concerned. Regarding my problem, i searched the archives and did not find any relevant information. Yet, i am new to this project, so there might be some elementary stuff i am not aware of... I have an RPXlite_dw board from EmbeddedPlanet with the MPC850 chip. I use SourceGate II ver 4 from Avocet Systems for debugging. I am trying to boot ppcboot on it. For ppcboot compilation, i did: $ make RPXlite_config $ make I installed the binary file into flash. Using the debugger, i can see that the first instructions are located at address 0x100, as they should be. When i boot the board, no output is performed on the serial port. The first few instructions appear as follows (as viewed by the debugger) with the corresponding code snippet pasted at the end. 0x100 LIS r3,-0x5E0 0x104 MTSPR IMMR,r3 0x108 LIr21,0x1 0x10C B 0x118 0x110 LIr21,0x2 0x114 B 0x118 0x118 LIr3,0x1002 0x11C MTMSR r3 Using the debugger and doing a step by step execution, it seems that these instructions generate breakpoint exceptions, change the memory map in some way, and jump somewhere in the code. It finally ends by executing the '' instruction (in flash?) which generates a float-instruction exception. I apologize for this somewhat unclear description, but it seems that the execution is different from time to time. Now, here are my interrogations... - Has anyone booted ppcboot with this exact board? - Where does the LI instruction come from? It doesn't appear in the Motorola's 32 bit ppc ref books. Could the problem be at the cross-compiling level? - Here's a notice written by Yoo. Jonghoon in the .../board/RPXlite/flash.c file: /* * Yoo. Jonghoon, IPone, yooth at ipone.co.kr * PPCboot port on RPXlite board * * Some of flash control words are modified. (from 2x16bit device * to 4x8bit device) * RPXLite board I tested has only 4 AM29LV800BB devices. Other devices * are not tested. * * (?) Does an RPXLite board which * does not use AM29LV800 flash memory exist ? * I don't know... */ Can I rightfully conclude that ppcboot has yet to be ported to this precise board? If so, what are the modifications that would be to be done? Any useful links? Best regards, Patrick Mahoney .../cpu/mpc8xx/start.S: .globl _start _start: lis r3, CFG_IMMR at h /* position IMMR */ mtspr 638, r3 li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ b boot_cold . = EXC_OFF_SYS_RESET + 0x10 .globl _start_warm _start_warm: li r21, BOOTFLAG_WARM /* Software reboot */ b boot_warm boot_cold: boot_warm: /* Initialize machine status; enable machine check interrupt */ /*--*/ li r3, MSR_KERNEL /* Set ME, RI flags */ mtmsr r3 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Serial port on IcePlanet
This is code that I wrote to set up the second uart. I used Metrowerks 6.0
to compile it.
//---
//UART1
void setUpOtherUart()
{
unsigned char* uart = (unsigned char*)0xef600400;
unsigned char* bcsr3= (unsigned char*)0xF403;
int k = 11059200 / (16 * 9600);
uart[3] |= 0x80;// set lcr[DLAB] divisor latch access bit
uart[0] = k 0xFF; // set LSB of divisor
uart[1] = k 8; // set MSB of divisor
uart[3] |=~0x80;// clear lcr[DLAB] divisor latch access
bit
uart[3] = 0x03; // 8 bit, 1 stop, no parity
uart[4] = 0x03; // DTR and RTS active.
uart[2] = 0x01; // 16550 Fifo enabled.
uart[0] |= 0x10;
}
-Original Message-
From: Linux PPC [mailto:[EMAIL PROTECTED]
Sent: Friday, August 23, 2002 11:06 AM
To: linuxppc-embedded at lists.linuxppc.org
Subject: Serial port on IcePlanet
Hi!
Has anybody got the second serial port working on the
Iceplanet (405pc processor)? The second serial port doesn't have
DCD and RI pins on it. Does this mean that the standard serial
driver will not work for it?
Thanx for reading,
- navin.
__
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
cygwin and embedded linux
viosoft has done it -Original Message- From: Magnus Damm [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 21, 2002 10:54 AM To: John.Fisher at nec.com.au Cc: linuxppc-embedded at lists.linuxppc.org Subject: Re: cygwin and embedded linux Is anyone seriously trying to do embedded Linux development for power PC using Cygwin as the host? I've designed a build-system for a customer, and I tried (just to see how much that worked ok) to build under Cygwin. Everything worked out ok until the system cross compiled glibc-2.1.3. Building glibc generated a error message that meant something like you-have-bad-memory-on-your-system. I tried to find the source of the problem with rebuilding and running memtest86. But no success. But this was maybe a year ago. The same system works great on Linux boxes. That's my only experience. But I have a box from Lynuxworks somewhere here (someone gave it to me) and that box says that the build system is hosted on windows... / Magnus John Fisher wrote: Is anyone seriously trying to do embedded Linux development for power PC using Cygwin as the host? I'm trying to get linux running on proprietary MPC850/860/8260 boards. I'll start with either the 850 or the 860 board as I'm more familiar with these processors than with the 8260. I have the Macraigor blackbird BDM interface for the MPC850/860. I have both an Agilent ethernet based probe and the Wind River Vision Probe II for the 8260. All boards will be running with plenty of flash and RAM: 16MB and 32MB respectively for both the 850 and 860 boards. They will be running with no disk drive, no monitor and a serial port on SCC3. I may have real time requirements, but this is yet to be determined. This is a learning exercise at this stage. John Fisher NEC Australia Pty Ltd ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
question concerning ram filestructure
I'm working with linux 2.4 on an embedded planet ep405. I have been trying to get a ram file structure working but I'm getting a reoccuring error. RAMDISK: Compressed image found at block 0 crc errorFreeing initrd memory: 2201k freed Kernel panic: VFS: Unable to mount root fs on 01:00 0Rebooting in 180 seconds.. I've seen this before on different ports of linux but I have not been able to figure it out. Does anyone have suggestions? Steven Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
booting from flash
Is there a simple way to boot embedded linux from flash? I've been able to easily compile and execute from RAM but when I try from flash the kernel can not use the initrd and it panics. Steven Blakeslee ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
execute from flash?
Does anyone know how I can run a program in flash from my embedded linux
kernel that is also running in flash? Below is the code that I tried but it
did not work. It compiles but does not run correctly.
typedef int (codePtr(char *info));
void main(char *argv)
{
int addr = 0xfff8;
codePtr* startloc = (codePtr *)addr;
(startloc(argv));
}
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
