MTD support build wrong

[Altera_Forum]

hi hippo: 

when i add mtd support , there is the message(DE2 board ) : uClinux/Nios II Altera Nios II support © 2004 Microtronix Datacom Ltd.  setup_arch: No persistant network settings signature at 008F0000 Built 1 zonelists Kernel command line:  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: 6484k/8192k RAM, 0k/0k ROM (1127k kernel code, 461k data) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) NET: Registered protocol family 16 JFFS2 version 2.2. © 2001-2003 Red Hat, Inc. NIOS serial driver version 0.0 ttyS0 (irq = 2) is a builtin NIOS UART Serial: JTAG UART driver $Revision: 1.4 $ ttyJ0 at MMIO 0x81004000 (irq = 1) is a jtag_uart io scheduler noop registered io scheduler deadline registered dmfe_probe:eth0, 50000 Khz Nios <DM9000> eth0 I/O: 80900090, VID: 90000a46   ADDR: 00:07:ed:00:00:00  dmfe_probe:eth1, 50000 Khz Nios FPS-Tech EPCS MTD Driver (fps-tech.net) 16 Mbit EPCS Chip found cmdlinepart partition parsing not available RedBoot partition parsing not available Creating 2 MTD partitions on "Altera EPCS Flash": 0x00400000-0x00600000 : "small_part" mtd: partition "small_part" is out of reach -- disabled 0x00600000-0x00800000 : "big_part" mtd: partition "big_part" is out of reach -- disabled 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 17 Freeing unused kernel memory: 348k freed (0x128000 - 0x17e000) Kernel panic - not syncing: No init found. Try passing init= option to kernel.  how can i do now ?  thanks!!!

[Altera_Forum]

my board is DE2 and flash is epcs16 thanks!!!

[Altera_Forum]

--- Quote Start ---  originally posted by andylei@Jun 5 2006, 09:32 PM my board is de2 and flash is epcs16 thanks!!! <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15917)  --- quote end ---    --- Quote End ---   read wiki about DE2 http://nioswiki.jot.com/wikihome/operating...flashprogrammer (http://nioswiki.jot.com/wikihome/operatingsystems/flashprogrammer)

[Altera_Forum]

It looks like you have to edit the partitions, they are too big for your current chip.

[Altera_Forum]

to:jdhar 

how to edit the partitions ? thanks very much!!! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

[Altera_Forum]

--- Quote Start ---  originally posted by hippo+jun 5 2006, 09:45 pm--><div class='quotetop'>quote (hippo @ jun 5 2006, 09:45 pm)</div>  --- quote start ---  <!--quotebegin-andylei@Jun 5 2006, 09:32 PM my board is de2 and flash is epcs16 thanks!!! <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15917)  --- quote end ---    --- Quote End ---   read wiki about DE2 http://nioswiki.jot.com/wikihome/operating...flashprogrammer (http://nioswiki.jot.com/wikihome/operatingsystems/flashprogrammer) <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15918)</div> [/b]  --- Quote End ---   The DE2 is different from other Altera Nios dev boards. The DE2 &#39;s fpga configs from EPCS16 (not CFI), is 2MB. The sof is not written directly to EPCS, it will be converted to RBF (raw binary file). The compress configuration data of 2C35 size around 300K-400K, typically. So you will have around 1.6MB unused space in EPCS16. You should store zImage after the RBF on EPCS. That is, you should use EPCS for fpga config and zImage. Then the CFI 4MB will be available for jffs2.  Look at this thread too, http://forum.niosforum.com/forum/index.php?showtopic=4009 (http://forum.niosforum.com/forum/index.php?showtopic=4009) post#12# 13

[Altera_Forum]

hi hippo: 

I read wiki about DE2 (http://nioswiki.jot.com/wikihome/operating...flashprogrammer) and do as it says. But the booting message is also : uClinux/Nios II Altera Nios II support © 2004 Microtronix Datacom Ltd.  setup_arch: No persistant network settings signature at 008F0000 Built 1 zonelists Kernel command line:  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: 6484k/8192k RAM, 0k/0k ROM (1127k kernel code, 461k data) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) NET: Registered protocol family 16 JFFS2 version 2.2. © 2001-2003 Red Hat, Inc. NIOS serial driver version 0.0 ttyS0 (irq = 2) is a builtin NIOS UART Serial: JTAG UART driver $Revision: 1.4 $ ttyJ0 at MMIO 0x81004000 (irq = 1) is a jtag_uart io scheduler noop registered io scheduler deadline registered dmfe_probe:eth0, 50000 Khz Nios <DM9000> eth0 I/O: 80900090, VID: 90000a46  ADDR: 00:07:ed:00:00:00  dmfe_probe:eth1, 50000 Khz Nios FPS-Tech EPCS MTD Driver (fps-tech.net) 16 Mbit EPCS Chip found cmdlinepart partition parsing not available RedBoot partition parsing not available Creating 2 MTD partitions on "Altera EPCS Flash": 0x00400000-0x00600000 : "small_part" mtd: partition "small_part" is out of reach -- disabled 0x00600000-0x00800000 : "big_part" mtd: partition "big_part" is out of reach -- disabled 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 17 Freeing unused kernel memory: 348k freed (0x128000 - 0x17e000) Kernel panic - not syncing: No init found. Try passing init= option to kernel. and the RBF (raw binary file) how to convert ? from which file to convert ? Thanks very much!! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

[Altera_Forum]

You should read the actual error messages; it is trying to create a partition at 0x00800000. Now, if you plug this in calculator, you will see that this is 8 Megabytes, or 64 Mbit. As hippo said, you do not have this much space on your configuration device. You need to go into ./drivers/mtd/maps/epcs_map.c and edit the partitions to suite your needs. Then, you will have to create a filesystem on the EPCS device since you are trying to mount root on it. Read the EPCS Guide in the Wiki, or this one:  

 http://www.fps-tech.net/docs/epcs-ug.pdf (http://www.fps-tech.net/docs/epcs-ug.pdf)

[Altera_Forum]

You need to learn flash programmer before using mtd. 

First, resize your cfi flash to 4M base addr 0 ,in sopc builder, and regenerate sof.  Then enable epcs mtd and cfi mtd, in drivers/mtd/maps/ edit epcs_map.c static struct mtd_partition epcs_partitions = {     {  .name = "sof_kernel",  .size = 0x200000,  .offset = 0x000000,     } }; static const char *part_probes __initdata = {NULL}; edit altera.c static struct mtd_partition alteramap_partitions = {     {  .name =  "romfs/jffs2",  .size =  0x400000,  .offset =    0x000000,     } }; Rebuild kernel image from the start "make clean", "make linux_hwselect...."....  Follow the wiki, http://nioswiki.jot.com/wikihome/operating...flashprogrammer (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/flashprogrammer) To program sof and zImage to your EPCS. And erase cfi flash.