Re: Kernel boot hanging after power-up

Altera_Forum · ‎08-03-2005

I'm having trouble with a custom board when booting Linux.

After the FPGA configures, the kernel begins to boot, and hangs when trying to mount the second RAMdisk. If I RESET the processor without reconfiguring the FPGA, the kernel boots, and the system runs without any problems. This is the output to the terminal. Do I have to change the kernel source to account for 64 MB of SDRAM?

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uClinux/Nios II

setup_arch: No persistant network settings signature at 047F0000

Built 1 zonelists

Kernel command line: root=/dev/mtdblock0 ro

PID hash table entries: 512 (order: 9, 8192 bytes)

Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)

Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)

Memory available: 63104k/65536k RAM, 0k/0k ROM (1473k kernel code, 306k data)

Mount-cache hash table entries: 512 (order: 0, 4096 bytes)

NET: Registered protocol family 16

Serial: JTAG UART driver $Revision: 1.4 $

ttyJ0 at MMIO 0x85020bd0 (irq = 0) is a jtag_uart

io scheduler noop registered

io scheduler anticipatory registered

io scheduler deadline registered

io scheduler cfq registered

RAMDISK driver initialized: 4 RAM disks of 4096K size 1024 blocksize

smc_probe: 100000 Khz Nios

SMSC LAN91C111 Driver (v2.1), (Linux Kernel 2.6)

eth0: SMC91C11xFD(rev:1) at 0x85000300 IRQ:18 MEMSIZE:8192b NOWAIT:0 ADDR: 00:07

:ed:00:00:00

smc_probe: 100000 Khz Nios

eth1: SMC91C11xFD(rev:1) at 0x85010300 IRQ:19 MEMSIZE:8192b NOWAIT:0 ADDR: 00:07

:ed:00:00:00

smc_probe: 100000 Khz Nios

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx

CF: ctl=0

Altera NDK flash (AMD): Found 1 x16 devices at 0x0 in 8-bit bank

Intel/Sharp Extended Query Table at 0x0031

Using buffer write method

cfi_cmdset_0001: Erase suspend on write enabled

cmdlinepart partition parsing not available

RedBoot partition parsing not available

Using Altera NDK partition definition

Creating 4 MTD partitions on "Altera NDK flash (AMD)":

0x00400000-0x00800000 : "romfs/jffs2"

0x00200000-0x00400000 : "loader/kernel"

0x00000000-0x00200000 : "User configuration"

0x00000000-0x00800000 : "safe configuration"

NET: Registered protocol family 2

IP: routing cache hash table of 512 buckets, 4Kbytes

TCP established hash table entries: 4096 (order: 3, 32768 bytes)

TCP bind hash table entries: 4096 (order: 2, 16384 bytes)

TCP: Hash tables configured (established 4096 bind 4096)

NET: Registered protocol family 1

NET: Registered protocol family 17

VFS: Mounted root (romfs filesystem) readonly.

Freeing unused kernel memory: 64k freed (0x19c000 - 0x1ab000)

expand: from=/ramfs.img to=/dev/ram0

expand: from=/ramfs.img to=/dev/ram1

-- The kernel hangs at this point where I believe it's trying to mount /dev/ram1 as /tmp

Thanks,

-Gary

Altera_Forum · ‎08-05-2005

It looks like you're using a custom board... I don't know much about hardware, but could it be that some of the peripherals may need to be held in reset a bit longer before they're ready for use?

In the meantime, maybe you can try throwing in a bunch of "echo" statements into your rc file to try and slim down where the problem is occurring?