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imx6dl uboot doesn't show logo with hdmi after patched

Question asked by Xiyuan Zhou on Jun 25, 2015
Latest reply on Feb 8, 2016 by Paritosh Singh

My environment: imx6dl, JB4.2.2_1.1.0, hdmi, 1920x1080, RGB24


I applied the patch "Patch to support uboot logo keep from uboot to kernel to Android for JB4.2.2_1.1.0-GA and L3.0.35_4.1.0-GA BSP (HDMI, LCD and LVDS)",

and test with lcd, it works well.


Now, I am testing with hdmi,

Changes I did as follows,



370     #define IPU_OUTPUT_MODE_HDMI

371 //  #define IPU_OUTPUT_MODE_LVDS

372 //  #define IPU_OUTPUT_MODE_LCD





421     #define IPU_NUM         1 // original set to 2


I changed IPU_NUM from 2 to 1, because there is only 1 ipu in imx6dl, I think it should be changed


if I use #define IPU_NUM         2

the system will halt on uboot, log as follow,


U-Boot 2009.08 ( 6鏈18 2015 - 16:38:27)


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

Thermal sensor with ratio = 190

Temperature:   30 C, calibration data 0x5b251d69

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   : 198000000Hz

emi_slow clock: 99000000Hz

ddr clock     : 396000000Hz

usdhc1 clock  : 198000000Hz

usdhc2 clock  : 198000000Hz

usdhc3 clock  : 198000000Hz

usdhc4 clock  : 198000000Hz

nfc clock     : 24000000Hz

Board: i.MX6DL/Solo-SABRESD: unknown-board Board: 0x61012 [POR ]

Boot Device: MMC

I2C:   ready

DRAM:   1 GB


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


In:    serial

Out:   serial

Err:   serial

config_ipu_di_clk: freq = 148500000.

wait for pll5 lock.

config_ipu_di_clk: set pll5 clock to 297000000Hz.


else if I use #define IPU_NUM         1

the system will start up, but on hdmi, it shows "no siginal input"


3. my KERNEL_CMDLINE is as follows:

BOARD_KERNEL_CMDLINE := console=ttymxc0,115200 androidboot.console=ttymxc0 vmalloc=400M init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=28 androidboot.hardware=freescale



Does anyone know what is the problem with my case?