Hello all,
We have been trying hard to get Linux kernel with root file system up on SMDK2450 development board. The NAND flash in the board is not working (U-boot and kernel reports "No NAND device found!").
We are trying to boot the system using the root file system in memory. Can I get help on the procedure for this. I have cramfs file system created for the kernel.
Currently I am trying with bootargs root=/dev/ram rw console=ttySAC0,115200 initrd=0x30008000, 0x2077f0 init=/bin/bash
Here is the log:
U-Boot 1.1.6 (Dec 28 2010 - 10:13:13) for SMDK2416
CPU: S3C2416@400MHz
Fclk = 800MHz, Hclk = 133MHz, Pclk = 66MHz
Board: SMDK2416 Mobile SDRAM
DRAM: 64 MB
Flash: 1 MB
NAND: No NAND device found!!!
0 MB
Using default environment
In: serial
Out: serial
Err: serial
Net: Found CS8900@0x09000300
Hit any key to stop autoboot: 0
SMDK2416 # printenv nfsargs
nfsargs=setenv bootargs root=/dev/nfs ro nfsroot=${serverip}:${rootpath} console=ttySAC0,${baudrate}
SMDK2416 # printenv serverip
serverip=192.168.1.10
SMDK2416 # printenv ipaddr
ipaddr=192.168.1.20
SMDK2416 # ping 192.168.1.10
ping failed; host 192.168.1.10 is not alive
SMDK2416 # ping 192.168.1.10
host 192.168.1.10 is alive
SMDK2416 #
host 192.168.1.10 is alive
SMDK2416 # printenv ramargs
ramargs=setenv bootargs root=/dev/ram rw console=ttySAC0,115200 init=/bin/bash
SMDK2416 # ping 192.168.1.10
host 192.168.1.10 is alive
SMDK2416 # tftp 0x30008000 rootfs.cramfs
TFTP from server 192.168.1.10; our IP address is 192.168.1.20
Filename 'rootfs.cramfs'.
Load address: 0x30008000
Loading: #################################################################
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done
Bytes transferred = 6017024 (5bd000 hex)
SMDK2416 # tftp 0xc0108000 zImage
TFTP from server 192.168.1.10; our IP address is 192.168.1.20
Filename 'zImage'.
Load address: 0xc0108000
Loading: #################################################################
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done
Bytes transferred = 2127856 (2077f0 hex)
SMDK2416 # setenv bootargs root=/dev/ram rw console=ttySAC0,115200 initrd=0x30008000, 0x2077f0 init=/bin/bash
SMDK2416 # bootm
Boot with zImage
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.35-rc4 (rajam@rajam-desktop) (gcc version 4.2.2) #8 Tue Dec 28 19:55:35 IST 2010
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: SMDK2416
Memory policy: ECC disabled, Data cache writeback
CPU S3C2416/S3C2450 (id 0x32450003)
S3C24XX Clocks, Copyright 2004 Simtec Electronics
CPU: MPLL on 800.000 MHz, cpu 400.000 MHz, mem 133.333 MHz, pclk 66.666 MHz
CPU: EPLL on 96.000 MHz, usb-bus 48.000 MHz
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
Kernel command line: root=/dev/ram rw console=ttySAC0,115200 initrd=0x30008000, 0x2077f0 init=/bin/bash
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 60452k/60452k available, 5084k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
DMA : 0xffc00000 - 0xffe00000 ( 2 MB)
vmalloc : 0xc4800000 - 0xe0000000 ( 440 MB)
lowmem : 0xc0000000 - 0xc4000000 ( 64 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.init : 0xc0108000 - 0xc0131000 ( 164 kB)
.text : 0xc0131000 - 0xc050a000 (3940 kB)
.data : 0xc050a000 - 0xc0536820 ( 179 kB)
Hierarchical RCU implementation.
RCU-based detection of stalled CPUs is disabled.
Verbose stalled-CPUs detection is disabled.
NR_IRQS:99
irq: clearing subpending status 06000193
irq: clearing subpending status 02000092
Console: colour dummy device 80x30
console [ttySAC0] enabled
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
S3C Power Management, Copyright 2004 Simtec Electronics
S3C2416: Initializing architecture
S3C2416: IRQ Support
S3C24XX DMA Driver, Copyright 2003-2006 Simtec Electronics
DMA channel 0 at c4808000, irq 88
DMA channel 1 at c4808100, irq 89
DMA channel 2 at c4808200, irq 90
DMA channel 3 at c4808300, irq 91
DMA channel 4 at c4808400, irq 92
DMA channel 5 at c4808500, irq 93
s3c-adc s3c24xx-adc: attached adc driver
bio: create slab <bio-0> at 0
SCSI subsystem initialized
s3c-i2c s3c2410-i2c: slave address 0x10
s3c-i2c s3c2410-i2c: bus frequency set to 65 KHz
s3c-i2c s3c2410-i2c: i2c-0: S3C I2C adapter
Advanced Linux Sound Architecture Driver Version 1.0.23.
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
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 udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
NetWinder Floating Point Emulator V0.97 (extended precision)
JFFS2 version 2.2. (NAND) (SUMMARY) ?© 2001-2006 Red Hat, Inc.
ROMFS MTD (C) 2007 Red Hat, Inc.
msgmni has been set to 118
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
lp: driver loaded but no devices found
ppdev: user-space parallel port driver
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
s3c2440-uart.0: s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440
s3c2440-uart.1: s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440
s3c2440-uart.2: s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440
brd: module loaded
loop: module loaded
Uniform Multi-Platform E-IDE driver
ide-gd driver 1.18
ide-cd driver 5.00
impA7
robing 0x00800000 at 0x00000000
impA7
robing 0x00800000 at 0x10000000
Generic platform RAM MTD, (c) 2004 Simtec Electronics
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c24xx-nand s3c2412-nand: Tacls=3, 22ns Twrph0=8 60ns, Twrph1=3 22ns
s3c24xx-nand s3c2412-nand: NAND soft ECC
No NAND device found.
dm9000 Ethernet Driver, V1.31
mice: PS/2 mouse device common for all mice
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled
No device for DAI UDA134X
No device for DAI s3c24xx-i2s
ALSA device list:
No soundcards found.
TCP cubic registered
NET: Registered protocol family 17
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
List of all partitions:
No filesystem could mount root, tried: ext3 ext2 cramfs vfat msdos iso9660 romfs
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
Backtrace:
[<c01351f0>] (dump_backtrace+0x0/0x10c) from [<c0135330>] (dump_stack+0x18/0x1c)
r6:c0129a5c r5:c3c9402a r4:c0537410
[<c0135318>] (dump_stack+0x0/0x1c) from [<c0155024>] (panic+0x60/0xec)
[<c0154fc4>] (panic+0x0/0xec) from [<c0109190>] (mount_block_root+0x1d4/0x21c)
r3:00000000 r2:00000020 r1:c3c19f60 r0:c04a5054
[<c0108fbc>] (mount_block_root+0x0/0x21c) from [<c010929c>] (mount_root+0xc4/0xfc)
[<c01091d8>] (mount_root+0x0/0xfc) from [<c0109440>] (prepare_namespace+0x16c/0x1cc)
r5:c0129a14 r4:c0536ad4
[<c01092d4>] (prepare_namespace+0x0/0x1cc) from [<c0108970>] (kernel_init+0x10c/0x14c)
r5:c012895c r4:c05368b8
[<c0108864>] (kernel_init+0x0/0x14c) from [<c0157f3c>] (do_exit+0x0/0x578)
r5:00000000 r4:00000000
Any help would greatly be appreciated.
Thanks and regards
Rajam
QMax Systems
