MPC5200B MMC over SPI into PSC6

// PSC6 in spi mode example [EMAIL PROTECTED] { // PSC6 device_type = spi; compatible = mpc5200b-psc-spi\0mpc5200-psc-spi; cell-index = 5; reg = 2c00 100

SD over SPI mpc5200b

Hello, I am trying to enable the SD over SPI on a emebedded system with one processor powerpc mpc5200b, has someone patches for the Linux 2.6.22 versions? Thanks Fabio. ___ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org

Need refrence software for Booting board of MPC8540

Dear All, This is Rajesh from VRINDATECHNOLOGIES, I have a quiery where i am expecting a reply from all of you in this group, Presently we are trying to build a board on MPC 8540 processor, And can you please send me some Refrence Drivers where and how to initialize my board , And would be very

Installing u-boot on sbc8260 via ethernet using minicom

i've tryed to install u-boot using minicom, but i'm not able to configure in shell boot params, using this... boot device : motfcc unit number : 0 processor number : 0 host name: motfcc0 inet on ethernet (e) : 192.168.0.4 inet on backplane (b): 192.168.0.4 host

ML403 and Montavista 4.01

Hello, we started developing kernel with Montavista 4.01 to Xilinx ML403. Is there any info about upgrading ISE 8.1 Montavista 4 MLD/TCL and driver files to enable automatic driver generation? -- next part -- An HTML attachment was scrubbed... URL:

Compile Error Report

Hi All, I am working on linux-2.6.18-rc2-g73a589b5.tar.bz2 for MPC875, the cross-tools are from ELDK 4.0. After configuration and do 'make zImage', I got these error: CC arch/ppc/boot/simple/m8xx_tty.o arch/ppc/boot/simple/m8xx_tty.c:32: error: static declaration of 'cpmp' follows

Compile Error

Hi All, I am working on linux-2.6.18-rc2-g73a589b5.tar.bz2 for MPC875, the cross-tools are from ELDK 4.0. After configuration and do 'make zImage', I got these error: CC arch/ppc/boot/simple/m8xx_tty.o arch/ppc/boot/simple/m8xx_tty.c:32: error: static declaration of 'cpmp' follows

Gabe Johnson is out of the office.

I will be out of the office starting 08/30/2006 and will not return until 09/05/2006. I will respond to your message when I return.

Driver for OCP Driver for PPC405

Hi, I need a OCP IDE driver for IBM PPC405 redwood6 platform for 2.6 kernel. Any pointer for same or similar driver would be highly appreciated. regards, Akhilesh

Help for building linux 2.6.15

Hi All, I am working on ELDK 4.0 package with my evaluation board: AM MPC875, after configuration for my board, and do 'make zImage', I got the following errors: CC arch/ppc/syslib/m8xx_setup.o arch/ppc/syslib/m8xx_setup.c:56: error: 'bd_t' undeclared here (not in a function)

Help for bdm4gdb project

Hi All, Does any one know bdm4gdb project that dosen't exist in sourceforge.net? I have hardware wiggler and software debugger, but I need instructions in more details to use it, thanks. Wei

GPIO Control Driver

I am working on a PowerQuickIII processor that has a GPIO port, port C. Connect to this port are buffer enables for various devices on the product. I am trying to write a driver to control certain GPIO lines. Any suggestions on the best way to implement this? Currently I have created a

the 8260 MMU problem

I meet some problems about MMU with 8260 cpu.In the function of map_page(),the reference f is the flag to set the page present and can be read or write. but I find if I set the flag zero,the linux will start normal and memory can be read and write also ,so why these happened? The MMU do not

Artesyn PM/PPC 750 U-Boot/Linux support? Datasheet?

hi man i saw ur mail and wanted the datasheet of ppc 750 board. so if u can kindly mail it me i ll be grateful to u. Mahesh Roy Designation :Project Engineer Extn : 74162 Direct: 0484-3054162 Mobile : +91-9895572846 (8:30 am to 9:00 pm)

No Clock on SPI

Hi I?m writing a Driver for SPI. That is not working now. I have a MPC8260 using Linux 2.6.14 (rheap patch). Did someone else write a driver for SPI on this ?C or an other driver? So I can see what i did wrong? My SPCOM[STR] flag isn?t cleared automatically after one clock cycle. What here

Which is better for Wireless Network Support, 2.6 or 2.4?

Hi All, I am working on wireless data application via MPC875 host USB, is there any difference to use Linux 2.6.x or Linux 2.4.x? Is it Linux 2.6 more like RTOS? Thanks. Wei

Compatibility Problem between linux-2.4.25 and RedBoot

Hi all, Since my evaluation board based on MPC875 is pre-installed RedBoot Loader and Linux with this kit can be loaded and execute, but I want to try public powerpc linux, which can be loaded, but not execute. Dose any one know how to change it so that it is compatible with RedBoot? I

invalidate_dcache_range Kernel 2.6.14

I have an old driver that need the funktion invalidate_dcache_range but when I compile the driver : Unknown symbol invalidate_dcache_range. Whats the name of this funktion now ??? Regards Ted -- Echte DSL-Flatrate dauerhaft f?r 0,- Euro*. Nur noch kurze Zeit! Feel free mit GMX DSL:

Help for USB host driver for MPC8xx

Hi All, Dose anyone use USB host drivers for MPC875 with Linux 2.4.25? I just found these notes from http://www.heeltoe.com/software/usb/usb.html, but I have no idea about how to use it, any advice? Thanks. Wei

SPI spi_spcom[STR] freeze

Hello I have problem with SPI When I want to start my SPI transfer by setting 0x80 to my spi_spcom register. 0x80 keeping in this register till I READ the SPMODE register. There is also no transfer or any clock on the pins. Did anyone had an Idea what this can be ??? my system: mpc8270

Portting Linux to MPC8247

I am portting Linux(ver. 2.4.24) to MPC8247. I use U-boot and ELDK Kit. The boot and kernel works well, but when the init process to execute /sbin/init the board restarts. The message is shown following: ... ... Memory BAT mapping: BAT2=32Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.24-pre2

Ksymoops

Hi all We are using a Embedded Planet 8260 board with Embedded linux loaded in it. The target processor is MPC 8260. We need a kysmoops (rpm) for debugging oops messages in kernel. Can anyone suggest the link or how can i install kysmoops for Embedded Planet 8260 board with Embedded linux?

Portting Linux to MPC8247

I'm portting Linux to MPC8247 using ELDK-3.0 Kit and U-boot-1.1.4. The boot and kernel work well. But the console can't print anything. In /etc/inittab, I append line: s0:2345:respawn:/sbin/mingetty ttyS0 9600 linux. ... ... Kernel command line: console=ttyS0,9600n8 root=/dev/nfs rw

SPI Problem

Hi I?m writing a Driver for SPI. That is not working now. I have a MPC8260 using Linux 2.6.14 (rheap patch). My Problems and Questions 1. The Pointer in my BD to my Buffer Pointer is in external memory, I normaly allocated with kmalloc. Are this ok or need I a SDMA Page ? 2. My SPCOM[STR]

cpm_dpalloc

Hi All I have a MPC82xx Processor from Freescale with Linux 2.6.14 ( Can?t chance to an new version). My Problem is that I want to allocate a 64byte of memory in the dual ported ram with an alignment of 64bytes. (Needed for SPI Parameter Ram) the funktion cpm_dpalloc(64,64) returned 0x220 but

Reg. virtual address space in embedded linux

Hi all We are porting third party driver code from vxworks to Embedded linux in MPC 8260 under a evaluation platform from Embedded Planet in linux kernel space. The first step we carried out was reading the chip id and we were able to read the chip id correctly. For reading the chip id

JTAG PPC info ?

Quoting David H. Lynch Jr. dhlii at dlasys.net: Has anyone not covered by non-disclosure deciphered the JTAG codes for the PowerPC ? Is this a big secret or just skimpy Freescale documentation? Try emailing: Ed.Nuckolls at freescale.com This effort could help expand projects such as:

request_irq in a module casues kernel crash

please rewrite handler function with, void handler(int irq, void *dev_id, struct pt_regs * regs) { printk(Interrupt handler invoked for irq %d \n,irq); return IRQ_HANDLED; } eInfochips Business Disclaimer: This message may contain confidential, proprietary or legally

Compatibility Problem between linux-2.4.25 and RedBoot

Hi All, I am working on AdderII-MPC875 evaluation board(preinstalled RedBoot Monitor) with Linux OS, I can use adderII_defconfig(in linux-2.4.25) to compile and link to build up the image, and I can load it at 0x0038, but it can't be executed. If I use its original image coming with this

MPC5200 boot giving request_module: runaway loop modprobe binfmt-4c46 errors

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SIU_INT_IRQ4 in MPC 8260

Hi all I am trying to set up a interrupt handler for SIU_INT_IRQ4. The target I am using is MPC 8260 , emmbedded planet Evaluation board. The OS is Embedded Linux . - void my_interrupt_handler(int irq, void

MPC5200 boot giving request_module: runaway loop modprobe binfmt-4c46 errors

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Reg. RISC Timers in MPC8260

Hi Sorry this a repost , as in the earlier post I had wrongly mentioned the Target OS as Monta Vista Linux. We have a requirement of starting a 5 millisecond periodic timer . The target OS is Embedded Linux from Embedded Planet for MPC 8260 processor. when i did a insmod of the module in the

SMC1 Serial port blocks

I have two identical linux boxes connected via a serial link (9600 bit/s without any handshaking). In both boxes the serial port is realized by SMC1. One box is receiving and the other transmits a long stream of bytes. If I start the receiver after the transmitter, it seems that the

SMC1 serial port blocks

I have two identical linux boxes connected via a serial link (9600 bit/s without any handshaking). In both boxes the serial port is realized by SMC1. One box is receiving and the other transmits a long stream of bytes. If I start the receiver after the transmitter, it seems that the

rs232 endianness on PPC

Hi, when I write a byte on the SMC1 (MPC875) serial device (let us say 0x11) what should I expect on the output pin? First a 0 then 0, 0, 1, 0, 0, 0, 1 or the opposite. Is it different on a little endian CPU? Bye, Antonio. Hai voglia di fare un viaggio, ma non sai dove

FW: unresolved symbol on target ... while insmod

Thanks ... I am able to resolve the problem ... From: Srideep DeviReddy (WT01 - Broadband Networks) Sent: Thursday, June 29, 2006 10:30 AM To: 'linuxppc-embedded at ozlabs.org' Subject: unresolved symbol on target ... while insmod Hello All , I compiled

unresolved symbol on target ... while insmod

Hello All , I compiled a driver module using cross compiler for MPC8247 , now when I try to insert the module in to the target I give me an error like root at 10.0.0.2:/home# insmod linux-kernel-bde.o Using linux-kernel-bde.o insmod: unresolved symbol devfs_register insmod: unresolved

A Couple of 2.6/Xilinx Questions

All, I've been attempting to get a 2.6 version running on the Xilinx ML403 and only really need the ethernet and compact flash devices at this point. I've tried versions from mvista, kernel.org, etc; all only have the serial8250 device enabled. Obviously adding devices is a lot of work

Using RS232 Terminal as input device

Hi all I am using the kernel (2.6.15) in an ppc-based embedded system through a serial console on ttyS0 with no problems. Now I attached a graphic card to the system, which is correctly recognized and initialised by the Kernel. If I add console=tty0 console=ttyS0,57600 to the bootargs, I

USB on MPC8349 with MPH controller

Hi, im using kernel 2.6.16.18 with the ehci-fsl and a patch from this list to get USB working. So SCCR and SICRL register are set correctly. The external connected PHY is a SMSC 3300-EZK which has an ULPI interface. If I configure the USB controller of the MPC8349 to use the DR controller, port 1

Can't get CoralP drivers to work (fixed)

Hello guys I had time to dig into the kernel code and I discovered the origin of my problem. As I said in a previous post, we use a custom processor card based on a mpc8270. In the initialisation of our board was missing the following line : conswitchp = dummy_con; That's all ! Now it works

Can't get CoralP drivers to work

In message 1402.194.3.133.184.114040.squirrel at webmail.enib.fr you wrote: This seems ok to me but I don't have any video signal. My screen remains blank. What's your boot arguments? Where is your console device, on the serial port or on the frame buffer? My boot arguments :

Can't get CoralP drivers to work

Does the 8270 swap bytes on the PCI bus? The CoralP drivers are written for the 5200, which assumes any PCI card to be little-endian, and thus swaps bytes. That is, if you write a 32-bit word, say 0x01020304, the 5200 PCI will actually write 0x04030201. So if 8270 does *not* swap bytes

Linux kernel thread with Linux 2.6.x

Hi, do you have to use the semaphore or does a spinlock also meet your needs? If you are in kernel 2.4 you can use one of the task_queues (e.g the scheduler queue, timer and immediate queue also run at irq context) but that won't have a better speed than your solution because it also gets the

execve of /sbin/init fails

Anantharaman Chetan-W16155

Can't get CoralP drivers to work

On May 24, 2006, at 12:54 PM, jourdan at enib.fr wrote: I have a MPC8260 processor card with a Coral-P evaluation board (rev 4.0). Are you sure? The 8260 does not have a PCI bus and the Coral-P is a PCI card :-) Yes indeed my mistake it's a 8270 !

Can't get CoralP drivers to work

In message 3799.194.3.133.184.1148489640.squirrel at webmail.enib.fr you wrote: I have a MPC8260 processor card with a Coral-P evaluation board (rev 4.0). My system do not have keyboard nor mouse (i use the serial console). I use linux kernel 2.4.25 2.6.9. We have instructions on our

Can't get CoralP drivers to work

In message 1402.194.3.133.184.114040.squirrel at webmail.enib.fr you wrote: This seems ok to me but I don't have any video signal. My screen remains blank. What's your boot arguments? Where is your console device, on the serial port or on the frame buffer? My boot arguments : #

Help Needed: PHY Driver

Hi all, In our custom board (MPC8260) there is a child card, which is having the PHY chip DM256, and is being memory mapped with the processor via CS 7 and they are connected via local bus. Now my question is what nessary changes I have to make in linux tree for thi purpose. Thanks in

Can't get CoralP drivers to work

Hello I have a MPC8260 processor card with a Coral-P evaluation board (rev 4.0). My system do not have keyboard nor mouse (i use the serial console). I use linux kernel 2.4.25 2.6.9. For kernel 2.4.25 : I'm trying to get the framebuffer driver to work. During the boot the driver loads fine

How to change the Magic number

Hi ALL, I have a specific requirement to change the Magic number of the linux kernel in my embedded system. I cound see the Magic number is defined in U-boot files: 1.include/image.h:#define IH_MAGIC0x27051956 2.cpu/ppc4xx/start.S: .long 0x27051956 So i can modify in u-boot

To connect USB Bluetooth Dongle with embedded linux platform MPC 5200 Lite

Hello, We are in need of re-building Linux kernel 2.4.25 to support USB Bluetooth Dongle for the embedded platform MPC 5200 Lite. With the new kernel running and on connecting USB Bluetooth Dongle to icecube (MPC5200 Lite EVM) running embedded Linux from Denx, error USB device not accepting new

Need help to configure DNS on the Embedded system

Hi All, I am working on implementing wget future on my Embedded device. So i downloaded free wget sources (version 1.10.2) and compiled for my system. My system is walnut based one(IBM405EP processor). But wget is working if i specify IP when i try to download some file from my support site(i

Help Needed: input overrun(s)

Thank you very much for your help. Actually in our driver we are using all 128 channels of MCC1. So we have relocated the dpram for the uart and ethernet to the dpram 3 and freed the space for the MCC1 accordingly. We have gone through our allocations, nowhere it's conflicting. In your case is

Help Needed: input overrun(s)

Thanks very much for your reply. It's seems you have already developed the MCC driver. Are you using channels 32 to 96? Have you made any changes in the dp ram allocation for uart or ethernet driver? Please help me... Thanks and regards, Souvik Maiti Tata Consultancy Services Limited Mailto:

Help Needed: input overrun(s)

Hi all, I am currently involve in development of Multi-Channel Controller (MCC) driver for MPC8260 processor. Whenever we are loading the driver, on the console we are receiving a print ttyS: 1 input overrun(s) along with other prints of the driver and resulting in scrambled output. Can

Linux 2.4 devel on ML403 board : problem with prompt

Hi, I am trying to port linux 2.4 devel to ML403. I have used advices from this mailing list and some websites and finally got to th epoint where everything seems find except I cannot get the boot prompt. I have used busybox 1.0.1 and it seems init runs well, rcS runs well and afterr that I do

init issue on linux 2.4 devel and busybox

Hi, I have been working on porting linux 2.4 devel to the ml403 board. It boots well and then it goes on the CompactFlash to get the root filesystem where the executables are from busybox. The init program is found and launches well however the message is that init.d/rcS can't be found. I have

Accessing physical memory

Quoting Antonio Di Bacco antonio.dibacco at aruba.it: How can I access the physical memory? Can I MMAP for example /dev/mem? Is there a simpler way? Hi Antonio, What would you like to do? If you just want some arbitrary page of memory, then look at the 'nopage' example in Rubini, or ask me

Porting new MPC5200 based Board to linux kernel

Hi Hans, Hi Amir, Which MEN board is this? The EM01(A) or the PP01. I am using EM01A We are using the EM01A and have linux running. We always got reasonable fast response from the MEN support service. If this does not work, I could send you my config file. That will be nice from

linux 2.4 on ml403

Hi, I have been trying to run a linux 2.4 devel from the montavista site on an ml403 following among other things some advice from BYU website. I managed to have Linux start on the ml403 after downaloading it with XMD but then I have an error message : Xilinx Virtex-II Pro port (C) 2002

PPC405EP and Abatron BDI help

I'm not sure if this forum can help me, but perhaps someone has experience with using an Abatron BDI2000 to control an AMCC PPC405EP evaluation board. I am having problems with getting the BDI to access devices on the external bus. I have verifed the EBC settings are correct by comparing them to

Loopback configurations for SCC, FCC in MPC8247

Hi all, I am using MPC8247. I am using FCC0, FCC1, SCC3 and SCC4 in Ethernet mode. I want to enable local loopback in FCC and SCC. I tried in the following combinations of registers for SCC case ETH_LOOPBK_ENBL: printk(%s, ETH_LOOPBK_ENBL\n,__FUNCTION__);

Where to define IO ports

= Akihiro Iseno iseno at tomen-ele.co.jp ?TOMEN Electronics Corp. System Engineering Dept. II = -Original Message- From: Edward Jubenville [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 14, 2006 1:41 PM To: linuxppc-embedded at ozlabs.org Subject: Where

MPC8540 experience

Hallo Herr Koller, ich habe heute ihre EMail (http://ozlabs.org/pipermail/linuxppc-embedded/2004-October/015851.html) gelesen. Hatten sie bereits Erfolg? Ich habe ein ?hnliches Problem. Wir beutzen bei uns ebenfalls einen PPC und haben das Problem mit Big und Littel-Endian im XServer. Mit

Yosemite board ala, PPC405EP

I have been using an Albatron BDI for a PPC405GP board in a project. According to the documentation I've read the Yosemite board is identical register wise to the 405GP, except for two sets of EMAC registers. My problem is when I use the Albatron BDI using the register definitions for the 405GP,

Yosemite board ala, PPC405EP

Sorry, I was confused. I have a PPC405EP. not a Yosemite board. Jeff Fellin RFL Electronics Jeff.Fellin at rflelect.com 973 334-3100, x 327 David Hawkins

help reqd

Hi all , I have a driver and when i am doing insmod the driver its giving unresolved symbol. insmod: unresolved symbol copy_to_user insmod: unresolved symbol down insmod: unresolved symbol up insmod: unresolved symbol copy_from_user Can anyone suggest me where i am doing wrong. I am using

help reqd

/kernel space. -- Atul From: [EMAIL PROTECTED] [mailto:linuxppc-embedded-bounces+atul.sabharwal=tek.com at ozlabs.org] On Behalf Of prabha.j at tcs.com Sent: Tuesday, March 07, 2006 3:17 AM To: linuxppc-embedded at ozlabs.org Subject: help reqd Hi all , I

help reqd

insmod: unresolved symbol copy_to_user insmod: unresolved symbol down insmod: unresolved symbol up insmod: unresolved symbol copy_from_user you have to include asm/uacces.h Including a header file is only needed for compilation. This is a dynamic link/load error. Unless the header file

Different Page Size Support in Linux on PPC870

On PPC870, does the kernel only support 4K pages? To reduce the size of page table (level level 2), would 8M page be a better choice on a custom board? It's a no swap configuration. Memory load is critical in our design on this project. Comments? Thanks, Atul

Linux on PPC

You can easily migrate to linux environment. 1. You can use u-boot as a boot loader. 2. You can choose any standard linux kernel but you may have to do some RD on it to port to your board. Insted you can buy Montavista Linux, so that you can get support also. And also there are many mailing

wanted HDLC driver source for 8247

Hi, I require the HDLC driver for 8247. I got your address on the web, and learnt that your were looking for the same. If you have the drivers can you please share the same. I require this urgently. regards, Gurubaran .T The information contained in this electronic message

Looping SPIMISO and SPIMOSI pins

What could happen if I loop SPIMISO and SPIMOSI on my board expansion connector? I think I should receive the messages I send on the SPI bus. SPI is full duplex? Best regards, Antonio.

u-boot 1.1.4 using two fecs

Is it possible in your opinion to use both the fecs on a board in the u-boot? I read something saying only one can be the active one. Best regards, Antonio.

module_init macro seems not to work

If I use something like: module_init(cpm_timer_init); cpm_timer_init is not called when I load the module. I have to call cpm_timer_init inside init_module() . Bye, Antonio.

PEMICRO CABLEPPC and GDB

I have bought a PE MICRO CABLEPPC (parallel bdm wiggler). Someone was successful using it with Linux? Is there a driver for linux? Bye, Antonio.

no sys folder under /proc

I discovered that klogd is not running. This could be a problem. Is it mandatorty to run it to see kernel messages? Thank you for your help, bye. -- Initial Header --- From : Kumar Gala galak at kernel.crashing.org To : dibacco at inwind.it dibacco at inwind.it

no printk messages in /var/log/messages

Hi, I'm running klogd and syslogd from BusyBox 1.1.0. Some messages are logged to /var/log/messages but no kernel messages. I'm printing KERN_ERR but also KERN_EMERG and nothing seen!?!?! If I do cat /proc/kmsg it hangs but nothing print. Bye, Antonio.

IMAP_ADDR is virtual or physical address?

I'm wondering if IMAP_ADDR is a virtual address or a physical one. Normally I see things like this in drivers: static volatile immap_t *immr = (immap_t *) IMAP_ADDR; It seems therefore a virtual address. But I can see the same also in some u-boot code where I imagine we are accessing physical

MMU is enabled in u-boot?

u-boot works with MMU enabled? Why is it needed, if so?

u-boot relocate_code routine...

You can reinvent the wheel, or read the documented experience of others who went the same way long time ago. I don't prefer re-inventing unless it adds some real value. I had mentioned the same thing to the design team and changing the memory map solved the problem. My hypothesis is that

system tick in PPC

Someone knows how the jiffies is incremented in PPC? Using PIT, Decrementer or what? Thanks, Antonio.

MBX AMD AM29F080 flash not recognized

Sorry, the problem was that I didn't configure the Interleave 4, and the MBX use 4 chips of AM29F080. -- Initial Header --- From : linuxppc-embedded-bounces at ozlabs.org To : linuxppc-embedded linuxppc-embedded at ozlabs.org Cc : Date : Sat, 11

SPI Katix subsytem

Hi, I would like to use a SPI subsystem on 2.4 but katix framework seems to be not continuosly updated. Katix is also present in 2.6 or is there another more supported framework there? Bye, Antonio.

denx 2.4 kernel doesn't compile amd_flash.c

Hi, I downloaded denx 2.4 kernel via cvs. I tried to compile it for a MBX board but I get the following problem: amd_flash.c:143: error: structure has no member named `buswidth' I was successful using the kernel included in ELDK 3.1.1. Someone could help?

SPI support for MPC8xx in ELDK 3.1.1?

Hi, the support for SPI device for MPC8xx (MPC880) is present in the ELDK 3.1.1 ? Thank you, Antonio.

kernel startup

Normally is it the uboot that uncompresses the kernel or the kernel uncompress itself? The function called by uboot when I type boot is _start? What does it mean that the load address is 0x?

MBX AMD AM29F080 flash not recognized

Hi, on my MBX board I have two flashes: AM29F040 called bootrom and four chips of AM29F080 (each one 8 Mbit for a total of 4MB). The kernel (from DENX) doesn't find the AM29F080. I added the following in amd_flash.c to support AM29F040 (a friend of mine told me) #define AM29F0400x00A4

kernel startup

Normally is it the uboot that uncompresses the kernel or the kernel uncompress itself? How would something compressed uncompress itself? If u-boot is being used it will uncompress a compressed kernel and put the image at physical 0. Small correction. Just like a self extracting binary, a

kernel startup

I'm not sure what sub-arch we are talking about, but some do have the MMU on. I am using PPC 870 and u-boot 1.1.2. Which architecture should I look for as a reference example. On my system, the RAM is not at address 0x0 but at 0x1000. Since the exception table does not take full 32 bit

kernel startup

Since I have set IIP to 1, reset vector is at 0xfff00100. IMMR is 0x00f0. So, putting RAM at address 0x0 allows only 15MB of RAM at address 0x0 (ISA style). As memory and internal processor registers would conflict, I would have a memory hole. Hence, the logical choice of putting RAM at a

kernel startup

The RAM is where you map it. The mapping is done in software. The software is implementing your design. In other words, your design is broken when you put the RAM at such a strange address instead of the natural location, starting from 0x. Memory is not on the local bus but across a third

kernel startup

I'm not that familiar with 8xx, but can't you move IMMR? Not much choice with IMMR as it can be 0x0 or 0x00f0 or 0xFF00 Or 0xFFF0. Flash is from 0xfe00 thru 0x. Now on POR, Processor goes to offset 0x100 on CS0. So, if IMMR is overlapping with flash, it might not

kernel startup

I'm not that familiar with 8xx, but can't you move IMMR? Of course you can. That's correct but on 8540, it did not work. I was using u-boot And BDI had mapped it to 0xe000 and u-boot had mapped it to 0x4000. So, it was a problem as serial interface did not work. It was easier to keep

kernel startup

Please do yourself a favour and read some docs and FAQ's first. With a low mapping ogf the IMMR like 0x00f0 you will never be able to run Linux. I know that the processor does not allow setting up a base address for the exception vectors. In this situation, it would never be able to handle

kernel startup

Actually, it would be great if PPC would allow the exception handlers to execute from DPRAM. The handler would run faster than coming from a RAM/flash or some EEPROM. Don't know all the implications but should be a useful speedup. -- Atul

MPC875 using SCC4 together with both FECs

Someone knows if, in MPC875, SCC4 can be used together with the two FECs? I saw that RXD4(input SCC4) shares the same GPIO with MII-TXD0 (output of FEC0). Thank you, Antonio.

How to cross-build OpenSSL shared library

Hello I have a problem with cross compiling the OpenSSL library for PPC (mpc885) as a shared library (Host x86, Linux). I give the option shared to the Configure script delivered with OpenSSL. But it always only builds me static libraries. After Configuration it shows me the text: You gave

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