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本帖最后由 afour 于 2015-11-23 16:57 编辑
情况是卡开机屏，无法双清，无法刷机。可以用TF进REC。
TTL信息如下 下一步怎么做 怎么修复啊 命令都是什么？大神请教
EEEE I3000000032940xf3001100
device is 16bit ddr
wait pll-0x03 target is 0204 now it is 0x00000203
DDR clock is 516MHz with 1T mode
DX0DLLCR:40000000
DX0DQTR:ffffffff
DX0DQSTR:3db04001
DX1DLLCR:40000000
DX1DQTR:ffffffff
DX1DQSTR:3db05001
DX2DLLCR:40000000
DX2DQTR:ffffffff
DX2DQSTR:3db05001
DX3DLLCR:40000000
DX3DQTR:ffffffff
DX3DQSTR:3db05001
Stage 00 Result 00000000
Stage 01 Result 00000000
Stage 02 Result 00000000
Stage 03 Result 00000000
HHH
Boot From SPI0x12345678
Boot from internal device 1st SPI RESERVED
System Started
env_init env_init 40?
U-boot-00000-g093cd8a-dirty(m6_mbx_g32@jb42-0630) (Oct 18 2013 - 10:09:42)
aml_rtc_init
aml rtc init first time!
Clear HDMI KSV RAM
DRAM: 1 GiB
relocation Offset is: 105e8000
NAND: Amlogic nand flash uboot driver, Version U1.06.017 (c) 2010 Amlogic Inc.
SPI BOOT : continue i 0
No NAND device found!!!
NAND device id: 2c 68 4 4a a9 0
NAND device: Manufacturer ID: 0x2c, Chip ID: 0x2c (Micron C revision NAND 4GiB MT29F32G-C)
1 NAND chips detected
onfi timing mode set failed: 49
#####aml_nand_init, with RB pins and chip->chip_delay:20
bus_cycle=10, bus_timing=10, start_cycle=10, end_cycle=10,system=5.0ns
oob size is not enough for selected bch mode: NAND_BCH60_1K_MODE force bch to mode: NAND_BCH30_1K_MODE
aml_chip->oob_fill_cnt =0,aml_chip->oob_size =224,bch_bytes =54
aml_nand_init:oobmul =2,chip->ecc.layout->oobfree[0].length=16,aml_chip->oob_size=224
aml nand env valid addr: 10000
key start_blk=2040,end_blk=2047,aml_nand_key_init:684
aml nand key valid addr: ff010000
aml nand key valid addr: ff210000
aml nand key valid addr: ff410000
aml nand key valid addr: ff610000
CONFIG_KEYSIZE=0x10000; KEYSIZE=0xfffc; bbt=0x1330; default_keyironment_size=0xeccc
i=0,register --- nand_key
NAND bbt detect factory Bad block at 5a00000
Creating 8 MTD partitions on "nandnormal":
0x000000800000-0x000001000000 : "logo"
0x000001000000-0x000001800000 : "aml_logo"
0x000001800000-0x000002000000 : "recovery"
0x000002000000-0x000002800000 : "boot"
0x000002800000-0x000042a00000 : "system"
NAND bbt detect factory Bad block at 5a00000
0x000042a00000-0x000062a00000 : "cache"
0x000062a00000-0x000072a00000 : "backup"
0x000072a00000-0x0000ff000000 : "data"
nandnormal initialized ok
detect mx chiprevD :1 and nand_type: 0
nand_curr_device =1
MMC: SDIO Port B: 0, SDIO Port C: 1
SPI BOOT,spi_env_relocate_spec : env_relocate_spec 53
SPI NOR Flash NO write protect!!!, So I will enable it...
In: serial
Out: serial
Err: serial
register usb cfg[0] = 9fe82910
Net: Meson_Ethernet
init suspend firmware done. (ret:0)
detect_storage
nand exist return 0
setenv storage nand
reboot_mode=charging
ir init
switch_boot_mode
Saving Environment to SPI Flash...
SPI BOOT,spi_saveenv : saveenv 93
Erasing SPI flash...Writing to SPI flash...done
sdio_detect return 1
Device: SDIO Port B
Manufacturer ID: 0
OEM: 0
Name: Tran Speed: 40000000
Rd Block Len: 512
SD version 2.0
High Capacity: Yes
Capacity: 7902068736
Boot Part Size: 0
Bus Width: 4-bit
reading aml_autoscript
139 bytes read
## Executing script at 82000000
reading recovery.img
5781504 bytes read
## Booting kernel from Legacy Image at 82000000 ...
Image Name: Linux-3.0.50-00016-g209edc4
Image Type: ARM Linux Kernel Image (lzma compressed)
Data Size: 3403648 Bytes = 3.2 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
有个关键问题 是大家在超级终端中按回车进不去命令的原因，我昨晚搞到12点无法修复。今天可以了。关键问题是 需要短接 再接电源 再按回车才能进入输入命令的状态，而且不能有TF卡在在机器里 如果有TF卡 则无法检测到NAND。这个是困扰我一晚上的麻烦，早上把卡去掉还能修复了。然后重启插TF卡 短接再进REC刷机。如果UBOOT丢了 就在终端里刷进取。
这里有几个细节一定要注意。1是不能有TF卡 2是短接开机 不进REC 。当然没有TF也进不去REC ，显示器一定是黑屏的才对。就是说短接开机 看到TTL软件超级终端中有文字开始显示就开始按回车同时松开短接。如果真的进去REC也就失败了。
我本来也是一直进不去的 一直NAND NOT FOUND。 原因是插了TF卡，TTL把TF当做储存了也许。
我的是坏在5A00000 很多人都是这里。 症状是卡开机第一屏。
还有 一直回车出现
m6_mbx_g32#
m6_mbx_g32#
m6_mbx_g32#
就是成功了。可以输入了。
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发表于 2015-11-22 21:58
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