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

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

Hi Scott, Thank you very much. Here is my email address liangyi@vip.sohu.net

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

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

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

How to porting u-boot to my own board? | Altera Community

36 Replies

Altera_Forum
Honored Contributor
20 years ago
Hi Scott,

I search the files related with flash in u-boot directory and find some

> ..\u-boot\common\cmd_flash.c
> ..\u-boot\common\env_dataflash.c
> ..\u-boot\common\env_flash.c
> ..\u-boot\common\flash.c

> ..\u-boot\drivers\cfi_flash.c

> ..\u-boot\include\flash.h
> ..\u-boot\include\dataflash.h

> ..\u-boot\board\altera\common\flash.c
> ..\u-boot\board\altera\dk1c20\flash.c
> ..\u-boot\board\altera\common\AMDLV065D.c
> ..\u-boot\board\psyent\common\AMDLV065D.c

> .. and the cfi_flash.c you send to me

I have found that all *.c files are based on flash.h, what the relationship between these files?

I know the function below, they are flash driver for u-boot.
> ..\u-boot\board\altera\common\flash.c
> ..\u-boot\board\altera\dk1c20\flash.c
> ..\u-boot\board\altera\common\AMDLV065D.c
> ..\u-boot\board\psyent\common\AMDLV065D.c
But, the files below play what function. Do they have relation with u-boot flash driver?
> ..\u-boot\common\cmd_flash.c
> ..\u-boot\common\env_dataflash.c
> ..\u-boot\common\env_flash.c
> ..\u-boot\common\flash.c
> ..\u-boot\drivers\cfi_flash.c

Thanks,
LiangYi
Altera_Forum
Honored Contributor
20 years ago
Hi LiangYi,

> But, the files below play what function. Do they have relation with u-boot flash driver?

> ..\u-boot\common\cmd_flash.c
This implements all of the flash commands (e.g.: erase, protect, etc.)

> ..\u-boot\common\env_dataflash.c
Used for storing non-volatile environment.

> ..\u-boot\common\env_flash.c
Used for storing non-volatile environment.

> ..\u-boot\common\flash.c
Implements some higher-level flash routines.

> ..\u-boot\drivers\cfi_flash.c
Low-level CFI flash driver implementation. This can be used rather than implementing your own flash
driver in your board-specific source tree. Many boards have their own "flash.c" file that is customized
for the specific flash device on the board.

But don't take my word ... the best way to understand how things work is to read through the code
yourself ;-) Start with the following:
common/cmd_flash.c -- start with do_flerase().
common/cmd_mem.c -- start with do_mem_cp().

It should all become clear.

Regards,
--Scott
Altera_Forum
Honored Contributor
20 years ago
Hi Scott,

> Until you can successfully write your environment to flash you will get the warning message.
Also, I tried the cfi_flash.c that I sent you on two different boards (EP1C20 and PCI-5441) and
it works ok for me. However, both boards use 8-bit devices and do not implement data cache.
If you have a data cache, I don't think cfi_flash.c will work -- it's currently not coded to use
the ld/st io instructions.

Thank for your remind. I use nios/f core before, so when I change to nios/s core. My flash seems to work.

I download uImage(kernel) to my flash(offset=0x0) and run
==>bootm 0, my kernel is booted.

<div class='quotetop'>QUOTE </div>
--- Quote Start ---
==> bootm 0
# # Booting image at 00000000 ...
?nbsp; Image Name:?nbsp; Mtx uClinux 1.4
?nbsp; Image Type:?nbsp; Nios-II Linux Kernel Image (gzip compressed)
?nbsp; Data Size:??753694 Bytes = 736 kB
?nbsp; Load Address: 01000000
?nbsp; Entry Point:?01000000
?nbsp; Verifying Checksum ... OK
?nbsp; Uncompressing Kernel Image ... OK
Linux version 2.6.11-uc0 (LiangYi@liangyi) (gcc version 3.4.1 (Altera Nios II 5.0 b73))# 1 Fri Sep 30 00:36:27 2005

uClinux/Nios II
Altera Nios II support ?2004 Microtronix Datacom Ltd.

setup_arch: No persistant network settings signature at 003F0000
Built 1 zonelists
Kernel command line: root=/dev/mtdblock0 ro
PID hash table entries: 64 (order: 6, 1024 bytes)
Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Memory available: 6352k/8192k RAM, 0k/0k ROM (1426k kernel code, 295k data)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
NET: Registered protocol family 16
NIOS serial driver version 0.0
ttyS0 (irq = 2) is a builtin NIOS UART
Serial: JTAG UART driver $Revision: 1.4 $
ttyJ0 at MMIO 0x80800800 (irq = 1) is a jtag_uart
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: Open Ethernet Core Version 1.0
?oeth_probe: 65536 Khz Nios: 16 RX, 16 TX buffs
???????NO Custom HW ALIGN.
???????CONFIG_NIOS2_HW_MULX??defined.
???????CONFIG_NIOS2_HW_MUL_OFF NOT defined.
Microtronix map: Found 1 x16 devices at 0x0 in 16-bit bank
Amd/Fujitsu Extended Query Table at 0x0040
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
cmdlinepart partition parsing not available
RedBoot partition parsing not available
Using Microtronix development partition definition
Creating 2 MTD partitions on "Microtronix map":
0x00200000-0x00800000 : "romfs"
mtd: partition "romfs" extends beyond the end of device "Microtronix map" -- size truncated to 0x200000
0x00000000-0x00200000 : "loader/kernel"
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP established hash table entries: 512 (order: 0, 4096 bytes)
TCP bind hash table entries: 512 (order: -1, 2048 bytes)
TCP: Hash tables configured (established 512 bind 512)
NET: Registered protocol family 1
NET: Registered protocol family 17
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,0)[/b]
--- Quote End ---

I can not load filesystem. I first build filesystem project in Nios IDE, then I gzip the romfs.bin > romfs.bin.gz.
I download romfs.bin.gz to flash at offset=0x200000.
Right? How you do it?
I have run Mtx uClinux ok in my board under Nios IDE(Directly upload .bin to board).

Misfortune, the board I use is borrowed from other people. I have to return it today.

Thank you all the same.
LiangYi
Altera_Forum
Honored Contributor
20 years ago
Hi LiangYi,

>so when I change to nios/s core. My flash seems to work.

Good -- from a u-boot point-of-view, we're done ;-)

> I can not load filesystem.

Ok ... but this is not a u-boot issue. You should probably start a new topic so people who are not interested in u-boot will contribute.

Regards,
--Scott
Altera_Forum
Honored Contributor
20 years ago
To LiangYi,

<div class='quotetop'>QUOTE </div>
--- Quote Start ---
Creating 2 MTD partitions on "Microtronix map":
0x00200000-0x00800000 : "romfs"
mtd: partition "romfs" extends beyond the end of device "Microtronix map" -- size truncated to 0x200000
0x00000000-0x00200000 : "loader/kernel"[/b]
--- Quote End ---

Your mtd partition definition has a little error.

Seconed, Could you not zip "romfs.bin" first, just upload to flash with original "romfs.bin"?

However, I'd like to know/discuss how to implement the zipped "romfs.bin" to reduce flash capicity.
Altera_Forum
Honored Contributor
20 years ago
> I'd like to know/discuss how to implement the zipped "romfs.bin" to reduce flash
> capicity.

As long as you're using an read-only file system, you might want to consider
cramfs ... it works quite well ... and it is supported by u-boot. But please see:

http://www.niosforum.com/forum/index.php?s...=2383&hl=cramfs (http://www.niosforum.com/forum/index.php?showtopic=2383&hl=cramfs)

Regards,
--Scott

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