急！！！！！！好几天了，求指教！

我们板子参照sabresd设计的。之前使用系统android4.2.2，现在移植官网BSP android4.4.3

目前surfaceflinger导致系统启动失败。一直打印如下红色显示的信息。

request_suspend_state: wakeup (3->0) at 7437213333 (1970-01-01 00:00:04.592911333 UTC)

130|root@sabresd_6dq:/ #request_suspend_state: wakeup (0->0) at 956991823113 (1970-01-01 00:15:54.147520447 UTC)

init: untracked pid 6193 exited

request_suspend_state: wakeup (0->0) at 961401889447 (1970-01-01 00:15:58.557587114 UTC)

init: untracked pid 6221 exited

uboot环境变量设置setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:dev=off video=mxcfb2:off video=mxcfb3:off vmalloc=400M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=freescale cma=384M androidboot.serialno=110ea1d4df646307

Logcat中：

I/SurfaceFlinger(  119): SurfaceFlinger is starting

I/SurfaceFlinger(  119): SurfaceFlinger's main thread ready to run. Initializing graphics H/W...

D/libEGL  (  119): loaded /system/lib/egl/libEGL_VIVANTE.so

D/libEGL  (  119): loaded /system/lib/egl/libGLESv1_CM_VIVANTE.so

D/libEGL  (  119): loaded /system/lib/egl/libGLESv2_VIVANTE.so

I/imx6.gralloc(  119): fb_device_open dispid:0, fb:0

I/imx6.gralloc(  119): 32bpp setting of Framebuffer with RGBA8888 format!

W/imx6.gralloc(  119): using (fd=18)

W/imx6.gralloc(  119): id           = DISP3 BG - DI1

W/imx6.gralloc(  119): xres         = 1024 px

W/imx6.gralloc(  119): yres         = 768 px

W/imx6.gralloc(  119): xres_virtual = 1024 px

W/imx6.gralloc(  119): yres_virtual = 2304 px

W/imx6.gralloc(  119): bpp          = 32

W/imx6.gralloc(  119): r            =  0:8

W/imx6.gralloc(  119): g            =  8:8

W/imx6.gralloc(  119): b            = 16:8

W/imx6.gralloc(  119): width        = 163 mm (159.568100 dpi)

W/imx6.gralloc(  119): height       = 122 mm (159.895081 dpi)

W/imx6.gralloc(  119): refresh rate = 60.01 Hz

I/FslHwcomposer(  119): using fsl hwc!!!

I/FslHwcomposer(  119): int hwc_device_open(const hw_module_t*, const char*, hw_device_t**),553

I/FslHwcomposer(  119): using fsl hwc!

I/FslHwcomposer(  119): fb0 is ldb

I/FslHwcomposer(  119):  device

I/FslHwcomposer(  119): fb1 is overlay device

W/FslHwcomposer(  119): open /sys/class/graphics/fb2 failed

W/FslHwcomposer(  119): open /sys/class/graphics/fb3 failed

W/FslHwcomposer(  119): open /sys/class/graphics/fb4 failed

W/FslHwcomposer(  119): open /sys/class/graphics/fb5 failed

I/FslHwcomposer(  119): hwcomposer: open framebuffer fb0

由于新内核使用dts。我跟Android4.2.2的内核相比较如下：

1、4.4.3时，使用LVDS接口，不知道是不是这么配置就可以了？？？？

①kernel_imx/arch/arm/boot/dts/imx6qdl-sabresd.dtsi

mxcfb1: fb@0 {

compatible = "fsl,mxc_sdc_fb";

disp_dev = "ldb";

interface_pix_fmt = "RGB666";

mode_str ="1024x600M@60";

default_bpp = <32>;

int_clk = <0>;

late_init = <0>;

status = "okay";

};

2、4.2.2时，我们使用LVDS接口，值修改添加了两个文件，是OK的。

①kernel_imx/drivers/video/mxc/ldb.c

·  在ldb.c文件中staticstruct fb_videomode ldb_modedb[]数组中添加lvds参数，如下

{

/* 1024 x 600 @ 60Hz */

"BT101IW01", 60, 1024, 600, 21553,

62, 62,

13, 13,

62, 12,

0,

FB_VMODE_NONINTERLACED,

FB_MODE_IS_DETAILED,

},

②kernel_imx/arch/arm/mach-mx6/board-mx6q_sabresd.c

在board-mx6q_sabresd.c文件中添加BT101IW01模式，如下：

{ /*fb0*/

.disp_dev = "ldb",

.interface_pix_fmt = IPU_PIX_FMT_RGB666,

.mode_str = "BT101IW01",

.default_bpp = 32,

.int_clk = false,

.late_init = false,

},