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imx6 boot problem

Question asked by tonny wong on Oct 31, 2013
Latest reply on Nov 19, 2013 by Yixing Kong
Branched to a new discussion


We design a pcb board based on imx 6Quad referring to Sabre-SD board.

After i download the android 4.2 image to eMMC, it can't boot successfully, always stop at a moment , and start to reboot again.

The boot log is :




U-Boot 2009.08 ( 9鏈06 2013 - 09:31:53)



CPU: Freescale i.MX6 family TO1.2 at 792 MHz

Thermal sensor with ratio = 185

Temperature:   68 C, calibration data 0x59250469

mx6q pll1: 792MHz

mx6q pll2: 528MHz

mx6q pll3: 480MHz

mx6q pll8: 50MHz

ipg clock     : 66000000Hz

ipg per clock : 66000000Hz

uart clock    : 80000000Hz

cspi clock    : 60000000Hz

ahb clock     : 132000000Hz

axi clock   : 264000000Hz

emi_slow clock: 132000000Hz

ddr clock     : 528000000Hz

usdhc1 clock  : 198000000Hz

usdhc2 clock  : 198000000Hz

usdhc3 clock  : 198000000Hz

usdhc4 clock  : 198000000Hz

nfc clock     : 24000000Hz

Board: i.MX6Q-SABRESD: unknown-board Board: 0x63012 [WDOG ]

Boot Device: MMC

I2C:   ready

DRAM:   1 GB


*** Warning - bad CRC or MMC, using default environment



In:    serial

Out:   serial

Err:   serial

i2c: I2C2 SDA is low, start i2c recovery...

I2C2 Recovery failed, I2C1 SDA still low!!!

i2c: I2C3 SDA is low, start i2c recovery...

I2C3 Recovery failed, I2C1 SDA still low!!!

Net:   got MAC address from IIM: 00:00:00:00:00:00


Hit any key to stop autoboot:  0

kernel   @ 10808000 (4690416)

ramdisk  @ 11800000 (189207)

kernel cmdline:

        use boot.img command line:

        console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale



Starting kernel ...



Uncompressing Linux... done, booting the kernel.

Initializing cgroup subsys cpu

Linux version 3.0.35-06126-g0f2d6ad-dirty (tonny@tonnypc) (gcc version 4.6.x-google 20120106 (prerelese) (GCC) ) #101 SMP PREEMPT Fri Nov 1 09:10:36 CST 2013

CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d

CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache

Machine: Freescale i.MX 6Quad/DualLite/Solo Sabre-SD Board

Ignoring unrecognised tag 0x54410008

Memory policy: ECC disabled, Data cache writealloc

CPU identified as i.MX6Q, silicon rev 1.2

PERCPU: Embedded 7 pages/cpu @c12d9000 s6592 r8192 d13888 u32768

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 208128

Kernel command line: console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=10M fb0base=0x27b00000 vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale

PID hash table entries: 2048 (order: 1, 8192 bytes)

Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

Memory: 379MB 378MB 64MB = 821MB total

Memory: 820692k/820692k available, 227884k reserved, 441344K highmem

Virtual kernel memory layout:

    vector  : 0xffff0000 - 0xffff1000   (   4 kB)

    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)

    DMA     : 0xfbe00000 - 0xffe00000   (  64 MB)

    vmalloc : 0xd9800000 - 0xf2000000   ( 392 MB)

    lowmem  : 0xc0000000 - 0xd9000000   ( 400 MB)

    pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)

    modules : 0xbf000000 - 0xbfe00000   (  14 MB)

      .init : 0xc0008000 - 0xc0045000   ( 244 kB)

      .text : 0xc0045000 - 0xc08c2a70   (8695 kB)

      .data : 0xc08c4000 - 0xc09484e8   ( 530 kB)

       .bss : 0xc094850c - 0xc0acffe8   (1567 kB)

Preemptible hierarchical RCU implementation.


MXC GPIO hardware

sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655ms


MXC_Early serial console at MMIO 0x2020000 (options '115200')

bootconsole [ttymxc0] enabled

Calibrating delay loop... 1581.05 BogoMIPS (lpj=7905280)

pid_max: default: 32768 minimum: 301

Mount-cache hash table entries: 512

Initializing cgroup subsys debug

Initializing cgroup subsys cpuacct

Initializing cgroup subsys freezer

CPU: Testing write buffer coherency: ok

hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available

CPU1: Booted secondary processor

CPU2: Booted secondary processor

CPU3: Booted secondary processor

Brought up 4 CPUs

SMP: Total of 4 processors activated (6324.22 BogoMIPS).

print_constraints: dummy:

NET: Registered protocol family 16

print_constraints: vddpu: 725 <--> 1300 mV at 700 mV fast normal

print_constraints: vddcore: 725 <--> 1300 mV at 1150 mV fast normal

print_constraints: vddsoc: 725 <--> 1300 mV at 1200 mV fast normal

print_constraints: vdd2p5: 2000 <--> 2775 mV at 2400 mV fast normal

print_constraints: vdd1p1: 800 <--> 1400 mV at 1100 mV fast normal

print_constraints: vdd3p0: 2625 <--> 3400 mV at 3000 mV fast normal

ram_console: got buffer at 3ff00000, size 100000

ram_console: found existing buffer, size 24117, start 24117

console [ram-1] enabled

No AHCI save PWR: PDDQ disabled

hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.

hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-step.

hw-breakpoint: maximum watchpoint size is 4 bytes.

L310 cache controller enabled

l2x0: 16 ways, CACHE_ID 0x410000c7, AUX_CTRL 0x02070000, Cache size: 1048576 B

bio: create slab <bio-0> at 0

mxs-dma mxs-dma-apbh: initialized




it stop booting at :

mxs-dma mxs-dma-apbh: initialized

one or two minutes later, it start to reboot ,and repeat the process above.



Is there anyone know how to fit this problem?