uClinux without Flash (again)

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I take it you are using true MMC mode instead of SPI, which is why you are using PIO? That should be really cool once it is done; I am actually moving away from MMC/SD now to CF just because of lack of driver support sad.gif Is the driver included in the kernel any good, or does that not even work?[/b]

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The mmc interface level drivers included with the kernel are for intel XA and arm, though higher mmc

level driver are common. We still need a low level MMC interface driver for NIOS2. The SPI driver in the kernel tree did not serve this. I had worked on both MMC/SD protocol and SPI protocol using PIO ports for embeded systems in the past. I am trying to port the drivers to uclinux. We always have limited LE resources on a FPGA, and doing it in software can save some space in hardware. Hardware should be used for speed-critical purpose.

I just got the NiosII for linux CD from Altera, but it was not installed properly withou quartus for linux.

I&#39;d like to setup the cross compiler env. in linux PC. But I cannot access the marc&#39;s web link:http://scorpius.homelinux.org/~marc/nios2.html (http://scorpius.homelinux.org/~marc/nios2.html) in China. Only the NiosII for linux CD, What should I do ?

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originally posted by mountain8848@Dec 6 2005, 10:43 PM

i just got the niosii for linux cd from altera, but it was not installed properly withou quartus for linux.

i&#39;d like to setup the cross compiler env. in linux pc. but i cannot access the marc&#39;s web link:http://scorpius.homelinux.org/~marc/nios2.html (http://scorpius.homelinux.org/~marc/nios2.html) in china. only the niosii for linux cd, what should i do ?

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You don&#39;t need to intsall anything - copy the binary folder from the linux CD to your linux distribution (it&#39;s like H-i386-linux etc... or something), put that folder in your path, and then:

make ARCH=nios2nommu CROSS_COMPILE=(prefix of the binary)- hwselect SYSPTF=yourptf.ptf

then menuconfig...

then just regular make.

1. remove root=/dev/mtdblock2 ro

2. enable <*> Initramfs

3. setup Initramfs source file(s)

but after build the kernel , gavin the following errors:

...
...
 CC      init/do_mounts_initrd.o
In file included from /cygdrive/d/EDA/altera/kits/nios2_50/bin/eclipse/plugins/com.microtronix.nios2linux.kernel_1.4.0/linux-2.6.x/include/linux/unistd.h:9,
                 from /cygdrive/d/EDA/altera/kits/nios2_50/bin/eclipse/plugins/com.microtronix.nios2linux.kernel_1.4.0/linux-2.6.x/init/do_mounts_initrd.c:2:
include2/asm/unistd.h:659: error: parse error before "setsid"
include2/asm/unistd.h:659: warning: return type defaults to `int'
include2/asm/unistd.h: In function `setsid':
include2/asm/unistd.h:659: error: `pid_t' undeclared (first use in this function)
...
...

It looks like you have initrd enabled - turn it off, you do&#39;nt need it - just turn on Initramfs and point it to the source tree.

It looks like you are still using Cygwin; this whole thread has been about how you can&#39;t use Cygwin for initramfs http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif You may want to try this with linux...

now I develop linux kernel in linux(redhat 9.0)

1. copy /bin/nios2-elf-.... to pc from CD of nios2linux

2. set PATH

3. make hwselect ; make menuconfig ; make (like you stated out)

the .config is much like you post in this thread.

here is linux log

version 3.4.1 (Altera Nios II 5.0 b73b))# 4 Sun Dec 11 19:38:18 CST 2005

uClinux/Nios II
Altera Nios II support (C) 2004 Microtronix Datacom Ltd.
Built 1 zonelists
Kernel command line: 
PID hash table entries: 128 (order: 7, 2048 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory available: 15232k/16384k RAM, 0k/0k ROM (633k kernel code, 330k data)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Linux NoNET1.0 for Linux 2.6
NIOS serial driver version 0.0
ttyS0 (irq = 3) is a builtin NIOS UART
ttyS1 (irq = 7) is a builtin NIOS UART
ttyS2 (irq = 8) is a builtin NIOS UART
ttyS3 (irq = 9) is a builtin NIOS UART
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Here is the kernel config: .config

NOTE: only one red line is difference, cause it will cause error when it is "=y"

# Automatically generated make config: don&#39;t edit# Linux kernel version: 2.6.11-uc0# Sun Dec 11 19:35:42 2005# # CONFIG_MMU is not set# CONFIG_FPU is not set

CONFIG_UID16=y

CONFIG_RWSEM_GENERIC_SPINLOCK=y# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set

CONFIG_GENERIC_CALIBRATE_DELAY=y

# # Code maturity level options#

CONFIG_EXPERIMENTAL=y

CONFIG_CLEAN_COMPILE=y

CONFIG_BROKEN_ON_SMP=y

# # General setup#

CONFIG_LOCALVERSION=""# CONFIG_BSD_PROCESS_ACCT is not set# CONFIG_SYSCTL is not set# CONFIG_AUDIT is not set

CONFIG_LOG_BUF_SHIFT=14# CONFIG_HOTPLUG is not set# CONFIG_IKCONFIG is not set

CONFIG_EMBEDDED=y

#CONFIG_KALLSYMS is not set # original : CONFIG_KALLSYMS=y# CONFIG_KALLSYMS_EXTRA_PASS is not set

CONFIG_FUTEX=y

CONFIG_EPOLL=y# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set

CONFIG_CC_ALIGN_FUNCTIONS=0

CONFIG_CC_ALIGN_LABELS=0

CONFIG_CC_ALIGN_LOOPS=0

CONFIG_CC_ALIGN_JUMPS=0

CONFIG_TINY_SHMEM=y

# # Loadable module support# # CONFIG_MODULES is not set

# # Processor type and features#

# # Platform dependant setup#

CONFIG_NIOS2=y# CONFIG_MICROTRONIX_UKIT is not set# CONFIG_MICROTRONIX_STRATIX is not set# CONFIG_MICROTRONIX_CYCLONE is not set# CONFIG_MICROTRONIX_PSK is not set

CONFIG_ALTERA_STRATIX=y# CONFIG_ALTERA_STRATIX_PRO is not set# CONFIG_ALTERA_STRATIX_II is not set# CONFIG_ALTERA_CYCLONE is not set# CONFIG_ALTERA_CYCLONE_1C12_EVAL is not set# CONFIG_NIOS2_HW_MUL_OFF is not set

CONFIG_NIOS2_HW_MUL=y# CONFIG_NIOS2_HW_MULX is not set

# # Miscellaneous Options# # CONFIG_AVALON_DMA is not set# CONFIG_PIO_DEVICES is not set

CONFIG_EXCALIBUR=y# CONFIG_BREAK_ON_START is not set# CONFIG_LARGE_ALLOCS is not set

CONFIG_RAMKERNEL=y# CONFIG_PREEMPT is not set

CONFIG_CMDLINE=""

# # Bus options (PCI, PCMCIA, EISA, MCA, ISA)# # CONFIG_PCI is not set

# # PCCARD (PCMCIA/CardBus) support# # CONFIG_PCCARD is not set

# # PC-card bridges#

# # PCI Hotplug Support#

# # Executable file formats#

CONFIG_KCORE_AOUT=y

CONFIG_KCORE_ELF=y

CONFIG_BINFMT_FLAT=y# CONFIG_BINFMT_ZFLAT is not set# CONFIG_BINFMT_SHARED_FLAT is not set# CONFIG_BINFMT_MISC is not set

# # Power management options# # CONFIG_PM is not set

# # Device Drivers#

# # Generic Driver Options#

CONFIG_STANDALONE=y

CONFIG_PREVENT_FIRMWARE_BUILD=y# CONFIG_FW_LOADER is not set

# # Memory Technology Devices (MTD)# # CONFIG_MTD is not set

# # Parallel port support# # CONFIG_PARPORT is not set

# # Plug and Play support#

# # Block devices# # CONFIG_BLK_DEV_FD is not set# CONFIG_BLK_DEV_COW_COMMON is not set# CONFIG_BLK_DEV_LOOP is not set# CONFIG_BLK_DEV_RAM is not set

CONFIG_BLK_DEV_RAM_COUNT=16

CONFIG_INITRAMFS_SOURCE="/home/uc/root"

CONFIG_INITRAMFS_ROOT_UID=500

CONFIG_INITRAMFS_ROOT_GID=500# CONFIG_CDROM_PKTCDVD is not set

# # IO Schedulers#

CONFIG_IOSCHED_NOOP=y

CONFIG_IOSCHED_AS=y

CONFIG_IOSCHED_DEADLINE=y

CONFIG_IOSCHED_CFQ=y

# # ATA/ATAPI/MFM/RLL support# # CONFIG_IDE is not set

# # SCSI device support# # CONFIG_SCSI is not set

# # Multi-device support (RAID and LVM)# # CONFIG_MD is not set

# # Fusion MPT device support#

# # IEEE 1394 (FireWire) support# # CONFIG_IEEE1394 is not set

# # I2O device support#

# # Networking support# # CONFIG_NET is not set# CONFIG_NETPOLL is not set# CONFIG_NET_POLL_CONTROLLER is not set

# # ISDN subsystem#

# # Telephony Support# # CONFIG_PHONE is not set

# # Input device support# # CONFIG_INPUT is not set

# # Userland interfaces#

# # Input I/O drivers# # CONFIG_GAMEPORT is not set

CONFIG_SOUND_GAMEPORT=y# CONFIG_SERIO is not set# CONFIG_SERIO_I8042 is not set

# # Input Device Drivers#

# # Character devices# # CONFIG_VT is not set# CONFIG_SERIAL_NONSTANDARD is not set# CONFIG_NIOS_SPI is not set# CONFIG_NIOS_BUTTON is not set

# # Serial drivers# # CONFIG_SERIAL_8250 is not set

# # Non-8250 serial port support#

CONFIG_NIOS_SERIAL=y

CONFIG_NIOS_SERIAL_CONSOLE=y# CONFIG_SERIAL_AJUART is not set# CONFIG_UNIX98_PTYS is not set# CONFIG_LEGACY_PTYS is not set

# # IPMI# # CONFIG_IPMI_HANDLER is not set

# # Watchdog Cards# # CONFIG_WATCHDOG is not set# CONFIG_RTC is not set# CONFIG_GEN_RTC is not set# CONFIG_DTLK is not set# CONFIG_R3964 is not set

# # Ftape, the floppy tape device driver# # CONFIG_DRM is not set# CONFIG_RAW_DRIVER is not set

# # I2C support# # CONFIG_I2C is not set

# # Dallas&#39;s 1-wire bus# # CONFIG_W1 is not set

# # Misc devices#

# # Multimedia devices# # CONFIG_VIDEO_DEV is not set

# # Digital Video Broadcasting Devices#

# # Graphics support# # CONFIG_FB is not set

# # Sound# # CONFIG_SOUND is not set

# # USB support# # CONFIG_USB is not set

CONFIG_USB_ARCH_HAS_HCD=y

CONFIG_USB_ARCH_HAS_OHCI=y

# # NOTE: USB_STORAGE enables SCSI, and &#39;SCSI disk support&#39; may also be needed; see USB_STORAGE Help for more information#

# # USB Gadget Support# # CONFIG_USB_GADGET is not set

# # MMC/SD Card support# # CONFIG_MMC is not set

# # InfiniBand support# # CONFIG_INFINIBAND is not set

# # File systems# # CONFIG_EXT2_FS is not set# CONFIG_EXT3_FS is not set# CONFIG_JBD is not set# CONFIG_REISERFS_FS is not set# CONFIG_JFS_FS is not set

# # XFS support# # CONFIG_XFS_FS is not set# CONFIG_MINIX_FS is not set# CONFIG_ROMFS_FS is not set# CONFIG_QUOTA is not set# CONFIG_DNOTIFY is not set# CONFIG_AUTOFS_FS is not set# CONFIG_AUTOFS4_FS is not set

# # CD-ROM/DVD Filesystems# # CONFIG_ISO9660_FS is not set# CONFIG_UDF_FS is not set

# # DOS/FAT/NT Filesystems# # CONFIG_MSDOS_FS is not set# CONFIG_VFAT_FS is not set# CONFIG_NTFS_FS is not set

# # Pseudo filesystems#

CONFIG_PROC_FS=y

CONFIG_SYSFS=y# CONFIG_DEVFS_FS is not set# CONFIG_TMPFS is not set# CONFIG_HUGETLB_PAGE is not set

CONFIG_RAMFS=y

# # Miscellaneous filesystems# # CONFIG_ADFS_FS is not set# CONFIG_AFFS_FS is not set# CONFIG_HFS_FS is not set# CONFIG_HFSPLUS_FS is not set# CONFIG_BEFS_FS is not set# CONFIG_BFS_FS is not set# CONFIG_EFS_FS is not set# CONFIG_CRAMFS is not set# CONFIG_VXFS_FS is not set# CONFIG_HPFS_FS is not set# CONFIG_QNX4FS_FS is not set# CONFIG_SYSV_FS is not set# CONFIG_UFS_FS is not set

# # Partition Types# # CONFIG_PARTITION_ADVANCED is not set

CONFIG_MSDOS_PARTITION=y

# # Native Language Support# # CONFIG_NLS is not set

# # Kernel hacking# # CONFIG_FULLDEBUG is not set# CONFIG_FRAME_POINTER is not set# CONFIG_MAGIC_SYSRQ is not set# CONFIG_NO_KERNEL_MSG is not set

# # Security options# # CONFIG_KEYS is not set# CONFIG_SECURITY is not set

# # Cryptographic options# # CONFIG_CRYPTO is not set

# # Hardware crypto devices#

# # Library routines# # CONFIG_CRC_CCITT is not set# CONFIG_CRC32 is not set# CONFIG_LIBCRC32C is not set

Thank jdhar and hippo so much, I worked out the right vmlinux, which can bootup with initramfs.

---------------------------------------------------------------

I crated ROOTFS half-automatically & half-manually

1. zip win pc ROOTFS

2. copy to linux pc

3. unzip -a in order to dos2linux

4. modify them properly: such as symbolic link files (ln -fvs * *)and /dev (mknod)

5. ln -fvs ./busybox init

---------------------------------------------------------------

I tested by :

1. ftp vmlinuc to win pc

2. nios2-download -g vmlinux

3. test telnet, ping .... ok

---------------------------------------------------------------

other problems:

1. I just got vmlinux in <linux-2.6.x> directory. I&#39;d like to build out vmlinux.bin in order to let u-boot to boot or flash-programmer. How to do it ?

2. Could you send me the webpages about nios2-linux toolchain in marc&#39;shttp://scorpius.homelinux.org/~marc/nios2.html (http://scorpius.homelinux.org/~marc/nios2.html) to jwq815@sina.com?

hi,mountain8848

you build the kernel under windows or linux?

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originally posted by mountain8848@Dec 12 2005, 11:05 PM

thank jdhar[/b] and hippo so much, I worked out the right vmlinux, which can bootup with initramfs.

---------------------------------------------------------------

I crated ROOTFS half-automatically & half-manually

1. zip win pc ROOTFS

2. copy to linux pc

3. unzip -a in order to dos2linux

4. modify them properly: such as symbolic link files (ln -fvs * *)and /dev (mknod)

5. ln -fvs ./busybox init

---------------------------------------------------------------

I tested by :

1. ftp vmlinuc to win pc

2. nios2-download -g vmlinux

3. test telnet, ping .... ok

---------------------------------------------------------------

other problems:

1. I just got vmlinux in <linux-2.6.x> directory. I&#39;d like to build out vmlinux.bin in order to let u-boot to boot or flash-programmer. How to do it ?

2. Could you send me the webpages about nios2-linux toolchain in marc&#39;shttp://scorpius.homelinux.org/~marc/nios2.html (http://scorpius.homelinux.org/~marc/nios2.html) to jwq815@sina.com?

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[/b]

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