yes, update uboot cfg file (imximage.cfg) with new ddr calibration data obtained from ddr test,
then rebuild image.
Best regards
igor
Hi
what bsp used in the case, one can try for example Linux 4.1.15_2.0.0, Demo Image
Best regards
igor
hi igor:
下面是下载时的 串口log, 不知道这些有没有帮助?
U-Boot 2016.03-imx_v2016.03_4.1.15_2.0.0_ga+g0ec2a01 (Sep 16 2016 - 18:31:44 -0500)
CPU: Freescale i.MX6ULL rev1.1 528 MHz (running at 396 MHz)
CPU: Commercial temperature grade (0C to 95C) at 51C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
\0
best regards
is it custom board or EVK? If custom, had board passed ddr test:
Best regards
igor
hi igor:
下面是一段其他主板 正常下载下载时的串口log,DRAM后是MMC, 而下载失败的log 到SDRAM:512 MiB 后就没有了,是不是说明EMMC 有问题?
CPU: Freescale i.MX6ULL rev1.1 69 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 44C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
unsupported panel TFT50AB
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc1(part 0) is current device
Net: FEC1
best regards
hi igor:
是custom board, ddr test 做过了, 这是calibration 结果。stress 也做了, 都没有报错。
if it is custom board then it is necessary to to update
Mfg Tool firmware files (files in ../firmware folder, fsl-image-mfgtool-initramfs-imx_mfgtools.cpio.gz.u-boot)
with updated uboot cfg file. Example can be found in
Best regards
igor
hi igor:
更新uboot cfg 文件,是指ddr test 后得到的校准参数吗?
yes, update uboot cfg file (imximage.cfg) with new ddr calibration data obtained from ddr test,
then rebuild image.
Best regards
igor
hi igor:
我更新了imximage.cfg 然后重新编译并更新了mfgtool firmware 里的initramfs, 依然下载失败。
每次都是load uboot, load kernel, load initramfs, 然后又开始load uboot,最后卡住不动。 下面是mfgtool 的log
hi igor:
感谢您的指点。
best regards
hi igor:
bsp linux-imx-rel_imx_4.1.15_2.1.0_ga
mfgtool 没有问题,在其他开发板上试过。
试过很多次下载, 有时候错误会不一样