mx28 kernel stop at mxs_cpu_init: cpufreq init finished.

[Jiandong_li]

mx28 customer board, DDR2 run at  200M ,boot_stream memery  test failed,after change DDR2 EMI clock to 166M, the boot_stream memory test and  u-boot mtest passed, the DDR2 memory run at 166m seem is stable. but the kernel always stop at mxs_cpu_init: cpufreq init finished

it's seem some confirguration need to change ,but i am confuse this issue some days,could someone give any suggestion?

X28 U-Boot > 靠珪PowerPrep start initialize power...
Battery Voltage = 0.77V
No battery or bad battery                                       detected!!!.Disabling battery                                   voltage measurements./r/nMay 26 201513:51:50
FRAC 0x92925A52
memory type is DDR2
                   Wait for ddr ready 1power 0x00820710
Frac 0x92925A52
start change cpu freq
hbus 0x00000003
cpu 0x00010001

U-Boot 2009.08 (May 26 2015 - 17:50:51)

Freescale i.MX28 family
CPU:   454 MHz
BUS:   151 MHz
EMI:   166 MHz
GPMI:   24 MHz
SSP0:   24 MHz
SSP2:   96 MHz
DRAM:  128 MB
MMC:   IMX_SSP_MMC: 0
MMC0: No card detected!
MMC init failed
In:    serial
Out:   serial
Err:   serial
Net:   got MAC address from IIM: 00:04:00:00:00:00
FEC0
MX28 U-Boot > setenv bootargs_base 'setenv bootargs console=ttyAM0,115200'
MX28 U-Boot > setenv loadaddr 0x42000000
MX28 U-Boot > setenv bootargs_spi 'setenv bootargs ${bootargs} root=/dev/mtdblock2 rootfstype=jffs2 rootwait rw ip=none'
MX28 U-Boot > setenv bootcmd_spi 'run bootargs_base bootargs_spi;sf probe 2:0; sf read ${loadaddr} 0x100000 0x300000;bootm'
MX28 U-Boot > setenv bootcmd 'run bootcmd_spi'
MX28 U-Boot > run bootcmd_spi
32768 KiB S25FL256S_64K at 2:0 is now current device
## Booting kernel from Legacy Image at 42000000 ...
   Image Name:   Linux-2.6.35.3-670-g914558e
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2510840 Bytes =  2.4 MB
   Load Address: 40008000
   Entry Point:  40008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.35.3-670-g914558e (ubuntu@ubuntu) (gcc version 4.6.2 20110630 (prerelease) (Freescale MAD -- Linaro 2011.07 -- Built at 2011/08/10 09:20) ) #9 PREEMPT Tue May 26 14:56:45 CST 2015
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: Freescale MX28EVK board
Memory policy: ECC disabled, Data cache writeback
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: console=ttyAM0,115200 root=/dev/mtdblock2 rootfstype=jffs2 rootwait rw ip=none
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 128MB = 128MB total
Memory: 124412k/124412k available, 6660k reserved, 0K highmem
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    DMA     : 0xfde00000 - 0xffe00000   (  32 MB)
    vmalloc : 0xc8800000 - 0xf0000000   ( 632 MB)
    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .init : 0xc0008000 - 0xc002f000   ( 156 kB)
      .text : 0xc002f000 - 0xc04df000   (4800 kB)
      .data : 0xc04e0000 - 0xc051e1a0   ( 249 kB)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
        RCU-based detection of stalled CPUs is disabled.
        Verbose stalled-CPUs detection is disabled.
NR_IRQS:288
Console: colour dummy device 80x30
console [ttyAM0] enabled
Calibrating delay loop... 226.09 BogoMIPS (lpj=1130496)
pid_max: default: 32768 minimum: 301
Security Framework initialized
SELinux:  Initializing.
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
regulator: core version 0.5
NET: Registered protocol family 16
regulator: vddd: 800 <--> 1575 mV at 1500 mV fast normal
regulator: vdddbo: 800 <--> 1575 mV fast normal
regulator: vdda: 1500 <--> 2275 mV at 1800 mV fast normal
vddio = 3380000, val=10
regulator: vddio: 2880 <--> 3680 mV at 3380 mV fast normal
regulator: overall_current: fast normal
regulator: vbus5v:
regulator: mxs-duart-1: fast normal
regulator: mxs-bl-1: fast normal
regulator: mxs-i2c-1: fast normal
regulator: mmc_ssp-1: fast normal
regulator: mmc_ssp-2: fast normal
regulator: charger-1: fast normal
regulator: power-test-1: fast normal
regulator: cpufreq-1: fast normal
i.MX IRAM pool: 124 KB@0xc8820000
usb DR wakeup device is registered
IMX usb wakeup probe
audit: cannot initialize inotify handle
bio: create slab <bio-0> at 0
SCSI subsystem initialized
Freescale USB OTG Driver loaded, $Revision: 1.55 $
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Version 1.0.23.
Switching to clocksource mxs clock source
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
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)
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.
Bus freq driver module loaded
IMX usb wakeup probe
usb h1 wakeup device is registered
mxs_cpu_init: cpufreq init finished

[igorpadykov]

Hi jiandong

spi boot is described on link below

How to enable SPI NOR boot for i.MX28 (Spansion s25fl256s)

note, that if you are using different spi-nor flash, it should be added to software using

Chapter 16 Configuring the SPI NOR Flash Memory Technology Device (MTD) Driver MX53UG

Best regards

igor

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