Hi3516D FASTBOOT失败，一直 20 20 20 20 0A

可以用fastboot工具直接将uboot下到ddr中，如果uboot和ddr都正常，在串口中可以进去到uboot命令行

本帖最后由 xr028 于 2017-9-14 13:52 编辑

经检查，是ddr供电不正确导致的。供电正确后，烧UBOOT如下：
Boot downloading started.
Boot 100 % Downloaded.
Boot Downloading completed!


U-Boot 2010.06 (Mar 28 2016
- 19:29:12)

Check spi flash c
ontroller v350... Found
Spi(cs1) ID: 0xC2 0x20 0x19 0xC2 0x20 0
x19
Spi(cs1): Block:64KB Chip:32MB Name:"MX25L(256/257)35(E/F)"

Check Nand Flash Controller v610 ... found
Special NAND id ta
ble Version 1.36
Nand ID: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
No NAND device found!!!

*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
start download process.

Boot Started successfully!
version: 3.0.3
(OK)
"getinfo version" command sent successfully!
spi
(OK)
"getinfo bootmode" command sent successfully!
32768 KiB hi_sfc at 0:0 is now
current device
(OK)
"sf probe 0" command sent successfully!
Erasing at 0x10000 --   6% complete.
Erasing at 0x20000 --  12% complete.
Erasing at 0x30000 --  18% complete.
Erasing at 0x40000 --  25% complete.
#
Erasing at 0x50000 --  31% complete.
Erasing at 0x60000 --  37% complete.
Erasing at 0x70000 --  43% complete.
Erasing at 0x80000 --  50% complete.
#
Erasing at 0x90000 --  56% complete.
Erasing at 0xa0000 --  62% complete.
Erasing at 0xb0000 --  68% complete.
Erasing at 0xc0000 --  75% complete.
#
Erasing at 0xd0000 --  81% complete.
Erasing at 0xe0000 --  87% complete.
Erasing at 0xf0000 --  93% complete.
#
Erasing at 0x100000 -- 100% com
plete.
(OK)
"sf erase 0 0x00100000" command sent successfully!
Writing at 0x10000 --   6% complete.
Writing at 0x20000 --  12% complete.
Writing at 0x30000 --  18% complete.
Writing at 0x40000 --  25% complete.
Writing at 0x50000 --  31% complete.
Writing at 0x60000 --  37% complete.
Writing at 0x70000 --  43% complete.
Writing at 0x80000 --  50% complete.
Writing at 0x90000 --  56% complete.
Writing at 0xa0000 --  62% complete.
Writing at 0xb0000 --  68% complete.
Writing at 0xc0000 --  75% complete.
Writing at 0xd0000 --  81% complete.
Writing at 0xe0000 --  87% complete.
#
Writing at 0xf0000 --  93% complete.
Writing at 0x100000 -- 100% com
plete.
(OK)
"sf write 0x81000000 0 0x00100000" command sent successfully!

以上过程表明些FLASH成功了


重启，在终端出现如下提示：
U-Boot 2010.06 (Mar 28 2016 - 19:29:12)

Check spi flash controller v350... Found
Spi(cs1) ID: 0xC2 0x20 0x19 0xC2 0x20 0x19
Spi(cs1): Block:64KB Chip:32MB Name:"MX25L(256/257)35(E/F)"
Check Nand Flash Controller v610 ... found
Special NAND id table Version 1.36
Nand ID: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
No NAND device found!!!
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0
Wrong Image Format for bootm command
ERROR: can't get kernel image!
hisilicon #
说明FLASH写入成功，接下来解决bad CRC的问题

[quote][url=forum.php?mod=redirect&goto=findpost&pid=63476&ptid=23375]zhanweizhao 发表于 2017-9-6 10:54[/url]
可以用fastboot工具直接将uboot下到ddr中，如果uboot和ddr都正常，在串口中可以进去到uboot命令行[/quote]

我认为这个检查不了DDR，因为当DDR供电不正确的时候，写入到DDR也提示成功

你之前ddr 供电不正常  指的是啥不正常呢  能具体点吗  现在也碰到你这样的问题呢