emmc 開機 dual display問題

BernieChen

我們使用 imx6q sabresd 客製板，看 user guide 說明 emmc 做為 fastboot，指令如下:

U-Boot > setenv fastboot_dev mmc3 [eMMC as fastboot deivce]
U-Boot > setenv bootcmd booti mmc3 [Load the boot.img from eMMC]

U-Boot > setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32
video=mxcfb1ff video=mxcfb2ff fbmem=10M fb0base=0x27b00000 vmalloc=400M
androidboot.console=ttymxc0 androidboot.hardware=freescale #[Optional]
U-Boot > saveenv #[Save the environments]

然而我想要用 dual display 加 hdmi

U-Boot > setenv fastboot_dev mmc0 [我們版子emmc 改成 mmc 0]
U-Boot > setenv bootcmd booti mmc0
U-Boot > setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,1024x600M@60,if=RGB666 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32  vmalloc=400M androidboot.console=ttymxc0  androidboot.hardware=freescale
U-Boot > saveenv




跑到 kernel 出現 crash，如果只有 video=mxcfb0:dev=ldb 他是可以穩穩到 root ， 7" panel 也可以顯示，或者設
video=mxcfb1:dev=ldb, video=mxcfb0:dev=hdmi ，hdmi 就可以顯示，雖然 7" panel不會亮，但系統不會 crash
以下log 為設定

U-Boot > setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,1024x600M@60,if=RGB666 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32  vmalloc=400M androidboot.console=ttymxc0  androidboot.hardware=freescale

的結果

regulator_init_complete: PFUZE100_VGEN6: incomplete constraints, leaving on
regulator_init_complete: PFUZE100_VGEN3: incomplete constraints, leaving on
regulator_init_complete: PFUZE100_VGEN2: incomplete constraints, leaving on
regulator_init_complete: PFUZE100_VGEN1: incomplete constraints, leaving on
regulator_init_complete: vmmc: incomplete constraints, leaving on
snvs_rtc snvs_rtc.0: setting system clock to 1970-01-01 00:00:00 UTC (0)
Freeing init memory: 248K
init: cannot find '/system/etc/install-recovery.sh', disabling 'flash_recovery'
healthd: wakealarm_init: timerfd_create failed
healthd: No charger supplies found
init: using deprecated syntax for specifying property 'ro.serialno', use ${name} instead
init: property 'ro.serialno' doesn't exist while expanding '$ro.serialno'
init: cannot expand '$ro.serialno' while writing to '/sys/class/android_usb/android0/iSerial'
init: using deprecated syntax for specifying property 'ro.product.manufacturer', use ${name} instead
init: using deprecated syntax for specifying property 'ro.product.model', use ${name} instead
healthd: BatteryStatusPath not found
healthd: BatteryHealthPath not found
healthd: BatteryPresentPath not found
healthd: BatteryCapacityPath not found
healthd: BatteryVoltagePath not found
healthd: BatteryTemperaturePath not found
healthd: BatteryTechnologyPath not found
binder: 2257:2257 transaction failed 29189, size 0-0
init: property 'sys.powerctl' doesn't exist while expanding '${sys.powerctl}'
init: powerctl: cannot expand '${sys.powerctl}'
init: property 'sys.sysctl.extra_free_kbytes' doesn't exist while expanding '${sys.sysctl.extra_free_kbytes}'
init: cannot expand '${sys.sysctl.extra_free_kbytes}' while writing to '/proc/sys/vm/extra_free_kbytes'
android_usb: already disabled
mtp_bind_config
SELinux: initialized (dev fuse, type fuse), uses genfs_contexts
root@sabresd_6dq:/ # ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
ERROR: v4l2 capture: slave not found!
SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
warning: `zygote' uses 32-bit capabilities (legacy support in use)
Unable to handle kernel NULL pointer dereference at virtual address 00000008
pgd = d2a80000
[00000008] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP
Modules linked in:
CPU: 0    Not tainted  (3.0.35-g74fd7fa-dirty #119)
PC is at rb_insert_color+0x28/0x168
LR is at timerqueue_add+0x6c/0xc4
pc : [<c02e5a34>]    lr : [<c02e7154>]    psr: 600d0093
sp : d2b2fd08  ip : 00000000  fp : c28874f8
r10: 00000038  r9 : d2b2fe70  r8 : c2887504
r7 : d2b2fe70  r6 : c2887504  r5 : d3c83e70  r4 : 00000000
r3 : 00000000  r2 : 00000000  r1 : c2887504  r0 : d2b2fe70
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c53c7d  Table: 22a8004a  DAC: 00000015

PC: 0xc02e59b4:
59b4  159c4000 12044003 11804004 158c4000 e593c000 e3520000 e5830004 e20cc003
59d4  e18cc002 e583c000 05813000 0a000003 e5921004 e1510000 05823004 15823008
59f4  e5902000 e2022003 e1833002 e5803000 e8bd0010 e12fff1e e92d41f0 e1a07000
5a14  e5905000 e1a08001 e3d55003 0a000016 e5953000 e3130001 1a000013 e3c34003
5a34  e5946008 e1560005 0a000021 e3560000 0a000012 e5962000 e3120001 1a00000f
5a54  e3822001 e5862000 e5953000 e1a07004 e3833001 e5853000 e5945000 e3c55001
5a74  e5845000 e3d55003 1affffe8 e5983000 e5932000 e3822001 e5832000 e8bd81f0
5a94  e5956008 e1560007 0a000028 e3833001 e5853000 e5943000 e1a00004 e1a01008




請問這比較可能是甚麼問題? 參數設錯 ?  謝謝。

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