20180115_jeffrey - silenceuncrio/diary GitHub Wiki

0905

幫忙進行 DRAM 的 debug

一開始的畫面

Load Init Script

DDR Stress Test

Start Freq(MHz) = 520
End Freq(MHz) = 520

一開始的訊息

============================================
        DDR Stress Test (2.6.0) 
        Build: Aug  1 2017, 17:33:59
        NXP Semiconductors.
============================================

============================================
        Chip ID
CHIP ID = i.MX6 UltraLite(0x64)
Internal Revision = TO1.1
============================================

============================================
        Boot Configuration
SRC_SBMR1(0x020d8004) = 0x000008b3
SRC_SBMR2(0x020d801c) = 0x01000001
============================================

ARM Clock set to 528MHz

============================================
        DDR configuration
DDR type is DDR3 
Data width: 16, bank num: 8
Row size: 15, col size: 10
Chip select CSD0 is used 
Density per chip select: 512MB 
============================================

DDR Stress Test 之後的訊息

DDR Stress Test Iteration 1
Current Temperature: 31
============================================

DDR Freq: 528 MHz
t0.1: data is addr test
Address of failure(step2): 0x80000000
Data was: 0xe3e2ffff
But pattern  should match address 
Error: failed to run stress test!!!

0940

開始來做 M360 的 dual image

m360 開機訊息 - https://gist.github.com/silenceuncrio/a01f33e56887efd4d76e30a36b3bcd4a

1020

從 linux 的訊息可以看到

[    3.176000] Creating 5 MTD partitions on "MT7621-NAND":
[    3.188000] 0x000000000000-0x00000ff80000 : "ALL"
[    3.196000] 0x000000000000-0x000000080000 : "Bootloader"
[    3.208000] 0x000000080000-0x000000100000 : "Config"
[    3.220000] 0x000000100000-0x000000140000 : "Factory"
[    3.232000] 0x000000140000-0x00000ff80000 : "firmware"
[    3.244000] 0x0000002be7b5-0x00000ff80000 : "rootfs"

目前的 uboot env

U-Boot 1.1.3 (Sep 20 2017 - 23:53:31)
MT7621 # printenv
bootcmd=cp.b 0xBFC20000 0x81E00000 0x10000;go 0x81E00000
bootdelay=5
baudrate=57600
ethaddr="00:AA:BB:CC:DD:10"
ethact=Eth0 (10/100-M)
raschksum1=421C8ED2
rootfs1_crc32=00000000
rootfs1_len=0
rootfs1_type=3
bootfile=sysupgrade.bin
autostart=no
filesize=4c0004
fileaddr=80100000
ipaddr=10.10.10.220
serverip=10.10.10.20
Image1Stable=1
BootImage=1
stdin=serial
stdout=serial
stderr=serial

Environment size: 387/4092 bytes
MT7621 #

看不出 uboot env 和 mtd partitions 有任何關聯

1030

在 m360 uboot 的 source code 找到 DUAL_IMAGE_SUPPORT 的 define

1040

從 http://www.cnblogs.com/sammei/p/3921477.html 看來

DUAL_IMAGE_SUPPORT 似乎已經時做了我們想要的 dual image 機制

1515

目前還卡在 uboot 的 tool chain 當中