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Altera_Forum's avatar
Altera_Forum
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20 years ago

How to porting u-boot to my own board?

Hello, everyone

I want to use u-boot on my board. I have two questions.

1. Before I use u-boot on my board, I just try to compile u-boot first. So, I follow the readme file.

I use

make PK1C20_config

make all

But there have errors.

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

In file included from /usr/include/sys/unistd.h:9,

from /usr/include/unistd.h:6,

from img2srec.c:61:

/usr/include/sys/types.h:106: conflicting types for `int8_t&#39;

/usr/include/stdint.h:38: previous declaration of `int8_t&#39;

/usr/include/sys/types.h:108: warning: redefinition of `int16_t&#39;

/usr/include/stdint.h:39: warning: `int16_t&#39; previously declared here

/usr/include/sys/types.h:110: warning: redefinition of `int32_t&#39;

/usr/include/stdint.h:40: warning: `int32_t&#39; previously declared here

/usr/include/sys/types.h:112: warning: redefinition of `int64_t&#39;

/usr/include/stdint.h:45: warning: `int64_t&#39; previously declared here

make[1]: *** Error 1

make[1]: Leaving directory `/cygdrive/d/My_Project/MtxCyclone_uBoot/BootLoader/u-boot-1.1.3/tools

make: *** [tools] Error 2[/b]

--- Quote End ---

I search the forum and find the answer given by smcnutt.

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

This looks like the sources directly from sourceforge.net ... this tree assumes you

have an appropriately configured native gcc and shell environment -- which

doesn&#39;t come with the nios2 toolchain 8-P The easiest thing to do is get the source

tree from http://www.pysent.com/download (http://www.pysent.com/download) -- this tree has certain "nips & tucks"

made to build cleanly with the default nios2 toolchain (under cygwin) -- and it&#39;s

more up-to-date than the sourceforge tree (WRT Nios-II, the sourceforge tree

has been lagging by several months).[/b]

--- Quote End ---

But I can not access the web link. Can give me the right link or the files?

2. If I want use u-boot on my MtxCyclone Board, how can I do?

Just what should I do according to the PK1C20.h?

Can give me more information or detailed steps than readme file?

Thank you very much,

LiangYi

36 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hi LiangYi,

    > But I can not access the web link. Can give me the right link or the files?

    The link is correct and working. Sadly, the problem is probably because you are in China,

    and your government prevents your free access to the Internet.

    It would be a pleasure to send you the source code. Please send me a PM with a valid

    email address that can accept a 1.6 MB attachment. And please feel free to distribute the

    code among your colleagues.

    Regards,

    --Scott
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hello Scott,

    I modify some code according to my board and U-boot runs on my board. It runs in sdram.

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    U-Boot 1.1.3 (Sep 14 2005 - 16:46:34)

    CPU?nbsp; : Nios-II

    SYSID : 3ef94735, Wed Sep 14 08:39:42 2005

    BOARD : Microtronix MCK-1C20

    *** Warning - bad CRC, using default environment

    ==>[/b]

    --- Quote End ---

    But I still have some questions.

    1. When I change the TEXT_BASE in config.mk, u-boot can not be made.

    Can you tell me detailed about TEXT_BASE, and how to set it?

    2. First, I creat a new directory to store the new platform.

    make xxxx_config --------OK

    make ---------error

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    make -C &#39;dirname board/microtronix/mtxkit1c20/libmtxkit1c20.a&#39;

    make[1]: Entering directory &#39;/cygdrive/....../u-boot/board/microtronix/mtxkit1c20&#39;

    make[1]:*** No rule to make target &#39;mtxkit1c20.c&#39;, needed by &#39;.depend&#39;. Stop.

    ......

    make: *** [board/microtronix/mtxkit1c20/libmtxkit1c20.a] Error 2[/b]

    --- Quote End ---

    But when I put the platform under altera directory, u-boot is made OK.

    Why?

    3. I run saveenv and re-run, but the warning still appear. Why?

    Thank you,

    LiangYi
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hi LiangYi,

    > But I still have some questions.

    > 1. When I change the TEXT_BASE in config.mk, u-boot can not be made.

    I don&#39;t understand what you mean by "u-boot can not be made" ... please describe what

    you observe. Does the make fail? Does the link fail?

    > Can you tell me detailed about TEXT_BASE, and how to set it?

    TEXT_BASE is set to the address where the .text section is located. This is the section

    that contains all of your code. In u-boot you would typically set this to a location at the

    top of your sdram (so the bottom of your sdram is available for a kernel).

    > make[1]:*** No rule to make target &#39;mtxkit1c20.c&#39;, needed by &#39;.depend&#39;. Stop.

    > But when I put the platform under altera directory, u-boot is made OK.

    > Why?

    Make is looking for mtxkit1c20.c and can&#39;t find it. Check your make target in the top level

    Makefile -- and always make distclean after moving stuff around ... you might have some

    artifacts (like old .depend files) in your source tree. Your top level target should call mkconfig

    with the appropriate arguments:

    mkconfig BOARD ARCH CPU DIR VENDOR

    Based on your post, you should have:

    mkconfig MTXKIT1C20 nios2 nios2 mtxkit1c20 microtronix

    > I run saveenv and re-run, but the warning still appear. Why?

    The saveenv command writes your environment variables to a non-volatile

    memory ... which is normally a parallel flash device. If you see the warning after

    running saveenv, the save operation failed. This is usually because you don&#39;t

    have your envirnonment setup properly ... or your flash implementation is broken.

    Please let me know the following:

    What type of flash are you using? (type and geometry)

    What is its base address?

    What is the value assigned to CFG_ENV_ADDR?

    Regards,

    --Scott
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hi Scott,

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    > 1. When I change the TEXT_BASE in config.mk, u-boot can not be made.

    I don&#39;t understand what you mean by "u-boot can not be made" ... please describe what

    you observe. Does the make fail? Does the link fail?[/b]

    --- Quote End ---

    Sorry, somewhere I make a mistake. I recheck and can build correct.

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    Make is looking for mtxkit1c20.c and can&#39;t find it¡­¡­¡­..[/b]

    --- Quote End ---

    Yes, the name of .c file is inconsistent with top-level Makefile.

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    What type of flash are you using? (type and geometry)

    What is its base address?

    What is the value assigned to CFG_ENV_ADDR?[/b]

    --- Quote End ---

    My flash is AM29DL323GB-90EI. 2M*16bit flash

    Base Address is 0x0.

    I find that CFG_ENV_ADDR is define in MTXKIT1C20.h file(platform description file).# define CFG_ENV_ADDR (CFG_RESET_ADDR + CFG_MONITOR_LEN)# define CFG_RESET_ADDR 0x00000000 /* Hard-reset address */# define CFG_MONITOR_LEN (256 * 1024) /* Reserve 128k */

    I do not know clearly what files I need to have and how to correct them. So my board can be initialized OK.

    My system now just include NIOS2/s, SDRAM, FLAHS, EPCS4, UART, JTAG-UART, sysid and system_timer.

    Thanks,

    LiangYi
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Another three questions.

    1. Now I can run u-boot in sdram, but how can I know the hardware in my system are being initialized proper.

    2. I have build vmlinux.bin. I want to run it in sdram through u-boot, how to do?(I find mkimage can not be used in my u-boot directory.)

    3. Because I do not know clearly the detail of the nios2 application execution(for example--helloworld).

    So I want to know it.

    cpu initial->hardware initial->jump main app. What files(.S, .h, .c) do this involve? Which reference of nios2 is helpful to me to know this.

    Thank you,

    LiangYi
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hi LiangYi,

    > Now I can run u-boot in sdram

    Great! :-)

    > but how can I know the hardware in my system are being initialized proper.

    Test it ... this is your responsibility ;-) u-boot only initializes what it uses:

    serial, timer, epcs. If you have custom logic or other devices you want to initialize,

    you can define CONFIG_BOARD_EARLY_INIT_F and implement the routine

    board_early_init_f() -- which gets called very ... well ... early ... in the init

    sequence.

    > 2. I have build vmlinux.bin. I want to run it in sdram through u-boot, how to do?

    If you want to compress:

    $ gzip --best -c vmlinux.bin > vmlinux.gz

    $ mkimage -A nios2 -O linux -T kernel -C gzip -n "Microtronix uClinux 1.4" -d vmlinux.img

    -a <whatever> -e <whatever>

    Then put the vmlinux.img file in flash somewhere (e.g. 0x200000) and from u-boot run:

    ==> bootm 200000

    > (I find mkimage can not be used in my u-boot directory.)

    You have two choices: port it to cygwin or get it from the psyent download page.

    -- I&#39;ll just send mkimage to you via email.

    > detail of the nios2 application execution(for example--helloworld).

    u-boot has something similiar to the hal ... since you can write what u-boot

    refers to as "standalone applications" or "mini-applications". You need to read the

    top level README file and docs/README.standalone. I tested hello world and it

    works fine (now that several bugs are fixed).

    As for the whole u-boot startup sequence, you&#39;ll have to use the force here ;-)

    Life starts in cpu/nios2/start.S and quickly jumps into lib_nios2/board.c.

    I hope this was helpful.

    Regards,

    --Scott
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hi LiangYi,

    Sorry, I missed the info in your earlier post:

    > My flash is AM29DL323GB-90EI

    Ok. So you have several choices here. You can implement your own flash.c file (see other

    boards for example), or you can use the u-boot CFI flash driver. To implement your own

    flash driver, just copy an existing flash.c file that supports the AM29DL323 and add it to

    your board directory. The RPXClassic, RPXlite_dw, esd/common trees have flash.c files

    that support your device. You can customize your own flash.c files as you like.

    The other option is to use the u-boot CFI flash driver (with fixes for avalon bus). The

    (patched) driver was reported to work fine on the UP3 board. The CFI driver increases the

    size of your u-boot image -- but should work with all CFI-compliant flash devices -- I&#39;ll send

    you the patch.

    To get started, the easiest thing to do is enable CFI, once this is (mostly) working you can apply

    the patch, customize, whatever you like. Remove any board-specific flash routines from your

    build, then configure for CFI. Here&#39;s a starting point:

    # define CFG_FLASH_CFI_DRIVER# define CFG_MAX_FLASH_SECT 71 /* Max# sects per bank */# define CFG_MAX_FLASH_BANKS 1 /* Max# of flash banks */# define CFG_FLASH_CFI

    > I do not know clearly what files I need to have and how to correct them. So my board

    > can be initialized OK. My system now just include NIOS2/s, SDRAM, FLAHS, EPCS4, UART,

    > JTAG-UART, sysid and system_timer.

    u-boot will initialize epcs4 (if enabled), the UART _or_ JTAG UART (but not both ... it only

    touches the device that you specify as the console), and the timer. The flash is scanned

    based on the flash driver you choose (normally your flash.c fle). The SDRAM and SYSID

    do not require initialization.

    Regards,

    --Scott
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Thank you Scott,

    So many to do according to your apply.

    I will test step by step.

    If something is wrong, I will paste.

    Thank you,

    LiangYi
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Hi Scott,

    I am in trouble now.

    1. My u-boot flash driver

    You said I can use flash.c. So, I browse flash.c(include /common/flash.c). I found AMDLV065D.c just have both parts of two flash.c files. So, I think I can change AMDLV065D.c to my use.

    I change CFG_MAX_FLASH_SECT and CFG_MAX_FLASH_BANKS(in board.h), change flash_id = FLASH_MAN_AMD + FLASH_AMDL323B. Is it right?

    2. In order to Programming U-Boot into Flash, I add 1M sram.

    But, when do as USING.TXT, it appears

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    System Analyzer for Nios® II Processor

    Serial number

    Version 1.9.4 build 0

    Copyright © 1998-2004 First Silicon Solutions, Inc.

    Communication port must be specified.

    Use openport <port> to configure the communication port

    cd d:/My_Project/MtxCyclone_uBoot/BootLoader/u-boot-src/u-boot

    1> halt

    Communication has not been established with remote unit.

    2> load bin 0x00600000 u-boot.bin

    Communication has not been established with remote unit.

    3>[/b]

    --- Quote End ---

    Why?

    3. I use NIOS_IDE Flash Programmer to download u-boot to my flash. After that I run # nios2-terminal

    Nothing happen, I do know why?

    Thanks,

    LiangYi