uClinux nios2 mmu

Hi.

I'm developing a system nios2 with mmu support and I can't make uClinux work.

This is the system nios ii build in Sopc Builder.

https://www.alteraforum.com/forum/attachment.php?attachmentid=8483

I can download the zImage.initramfs.gz

$ nios2-download -g zimage.initramfs.gz

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Pausing target processor: OK

Initializing CPU cache (if present)

OK

Downloaded 1634KB in 23.8s (68.6KB/s)

Verified OK

Starting processor at address 0xC0400000

Then, I run nios2-terminal and...

$ nios2-terminal.exenios2-terminal: connected to hardware target using JTAG UART on cable

nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0

nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate)

Initializing cgroup subsys cpu

Linux version 3.7.0+ (usuario@cent24.16 BogoMIPS (lpj=120832)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

NET: Registered protocol family 16

bio: create slab <bio-0> at 0

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

Switching to clocksource timer

NET: Registered protocol family 2

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)

TCP: reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.

io scheduler noop registered

io scheduler deadline registered (default)

crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64

crc32: self tests passed, processed 225944 bytes in 3308320 nsec

crc32c: CRC_LE_BITS = 64

crc32c: self tests passed, processed 225944 bytes in -4244500 nsec

ttyAL0 at MMIO 0x803440 (irq = 1) is a Altera UART

console [ttyAL0] enabled, bootconsole disabled

in putty...

console [ttyAL0] enabled, bootconsole disabledttyJ0 at MMIO 0x803468 (irq = 2) is a Altera JTAG UART

spi_altera 803400.spi: master is unqueued, this is deprecated

spi_altera 803400.spi: base e0803400, irq 3

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

mousedev: PS/2 mouse device common for all mice

mmc_spi spi32766.0: SD/MMC host mmc0, no DMA, no WP, no poweroff, cd polling

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

TCP: cubic registered

Warning: unable to open an initial console.

vfs: cannot open root device "(null)" or unknown-block(0,0): error -2

please append a correct "root=" boot option; here are the available partitions:

kernel panic - not syncing: vfs: unable to mount root fs on unknown-block(0,0)

and then nothing happens...

If anyone can help, I will be very grateful.

Attached the kernel configuration files and applications.

Thanks

Nicolás

Córdoba Argentina