Redmi AX5通电无法中断autoboot进入U-Boot解决方案

Gocsen

• 1.    如果无法中断Autoboot，且代码为如下内容：
  

看标红部分（倒数第五行代码）：

1. U-Boot 2016.01 (Jul 13 2020 - 12:00:51 +0000), Build: jenkins-common_router_openwrt_ota_publish-75
   
2. 
   
3. DRAM:  smem ram ptable found: ver: 2 len: 4
   
4. 256 MiB
   
5. NAND:  ONFI device found
   
6. ID = 9500a1ef
   
7. Vendor = ef
   
8. Device = a1
   
9. SF: Unsupported flash IDs: manuf 00, jedec 0000, ext_jedec 0000
   
10. ipq_spi: SPI Flash not found (bus/cs/speed/mode) = (0/0/48000000/0)
    
11. 128 MiB
    
12. MMC:   sdhci: Node Not found, skipping initialization
    
13. 
    
14. PCI0 is not defined in the device tree
    
15. In:    serial@78B1000
    
16. Out:   serial@78B1000
    
17. Err:   serial@78B1000
    
18. machid: 8030200
    
19. eth0 MAC Address from ART is not valid,use random ethaddr
    
20. <b><font color="#ff0000">bootwait is off</font></b>, bootdelay=5
    
21. ### main_loop: bootcmd="bootmiwifi"
    
22. Hit any key to stop autoboot:  0
    
23. 
    
24. trigger button release!
    
25. boot from rootfs 0

复制代码

可按以下步骤操作：

①断开电源；

②找个东西按住reset（复位）键；

③通电；

④直到黄灯开始闪烁再松开reset；

⑤等待片刻，路由器开始重启，迅速多次按任意键，直到出现：IPQ6018#，若未出现则断电重启并按键盘任意键直到出现：IPQ6018#。

以下为过程代码，截取了比较显眼的部分，省略的部分用“…………”替代

1. <p style="">U-Boot 2016.01 (Jul 13 2020 -
   
2. 12:00:51 +0000), Build: jenkins-common_router_openwrt_ota_publish-75</p>
   
3. 
   
4. <div style="text-indent:1em;"> </div>
   
5. 
   
6. <div style="">…………</div>
   
7. 
   
8. <div style=""> </div>
   
9. 
   
10. <div style="">machid: 8030200</div>
    
11. 
    
12. <p style="">eth0 MAC Address from ART is not
    
13. valid,use random ethaddr</p>
    
14. 
    
15. <div style="">bootwait is off, bootdelay=5</div>
    
16. 
    
17. <p style="">### main_loop:
    
18. bootcmd="bootmiwifi"</p>
    
19. 
    
20. <p style="">Hit any key to stop
    
21. autoboot:  0</p>
    
22. 
    
23. <div style=""> detect button press, continue check 5 secs                          //此代码表示我需要按住reset（复位）键</div>
    
24. 
    
25. <div style=""> detect button pressed 5 secs !                                           //此代码表示黄灯已经开始闪烁可以松开reset键</div>
    
26. 
    
27. <div style=""> confirm to launch xq_upgrade !</div>
    
28. 
    
29. <div style=""> cmd=dhcp</div>
    
30. 
    
31. <div style=""> </div>
    
32. 
    
33. <div style="">Net:   MAC0 addr:…………</div>
    
34. 
    
35. <div style="">PHY ID1: 0x4d</div>
    
36. 
    
37. <div style="">PHY ID2: 0xd0b1</div>
    
38. 
    
39. <div style="">EDMA ver 1 hw init</div>
    
40. 
    
41. <p style="">Num rings - TxDesc:1 (0-0)
    
42. TxCmpl:1 (0-0)</p>
    
43. 
    
44. <div style="">RxDesc:1 (15-15) RxFill:1 (7-7)</div>
    
45. 
    
46. <p style="">ipq6018_edma_alloc_rings:
    
47. successfull</p>
    
48. 
    
49. <div style="">…………</div>
    
50. 
    
51. <p style="">ipq6018_edma_hw_init:
    
52. successfull</p>
    
53. 
    
54. <div style="">eth0</div>
    
55. 
    
56. <p style="">Warning: eth0 MAC addresses
    
57. don't match:</p>
    
58. 
    
59. <div style="">Address in SROM is         …………</div>
    
60. 
    
61. <div style="">Address in environment is  …………</div>
    
62. 
    
63. <div style=""> </div>
    
64. 
    
65. <div style="">Trying to ping server.....</div>
    
66. 
    
67. <div style="">ipq6018_eth_halt: done</div>
    
68. 
    
69. <p style="">eth0 PHY0 Down Speed :10 Half
    
70. duplex</p>
    
71. 
    
72. <div style="">…………</div>
    
73. 
    
74. <p style="">eth0 PHY4 Down Speed :10 Half
    
75. duplex</p>
    
76. 
    
77. <div style="">ipq6018_eth_halt: done</div>
    
78. 
    
79. <p style="">ping failed; host 192.168.31.100 is not
    
80. alive          //路由器会尝试ping很多次host，然后就会重启</p>
    
81. 
    
82. <div style="">Ping test fail</div>
    
83. 
    
84. <div style="">ipq6018_eth_halt: done</div>
    
85. 
    
86. <p style="">eth0 PHY0 Down Speed :10 Half
    
87. duplex</p>
    
88. 
    
89. <p style="">eth0 PHY1 Down Speed :10 Half
    
90. duplex</p>
    
91. 
    
92. <p style="">eth0 PHY2 Down Speed :10 Half
    
93. duplex</p>
    
94. 
    
95. <p style="">eth0 PHY3 Down Speed :10 Half
    
96. duplex</p>
    
97. 
    
98. <p style="">eth0 PHY4 Down Speed :10 Half
    
99. duplex</p>
    
100. 
     
101. <div style="">ipq6018_eth_halt: done</div>
     
102. 
     
103. <p style="">======== dhcp failed, retry
     
104. !========</p>
     
105. 
     
106. <div style="">boot from rootfs 1                                                           //路由器开始重启，准备跑时间进程代码</div>
     
107. 
     
108. <p style="">
     
109. miwifi: check crash in rmem !</p>
     
110. 
     
111. <div style="">ubi0: attaching mtd1</div>
     
112. 
     
113. <p style="">qpic_nand_read_oob: ecc failure
     
114. while reading from 3580800</p>
     
115. 
     
116. <div style="">…………</div>
     
117. 
     
118. <p style="">qpic_nand_read_oob: ecc failure
     
119. while reading from 5820800</p>
     
120. 
     
121. <div style="">ubi0: scanning is finished</div>
     
122. 
     
123. <div style="">…………</div>
     
124. 
     
125. <p style="">ubi0: available PEBs: 0, total
     
126. reserved PEBs: 288, PEBs reserved for bad PEB handling: 20</p>
     
127. 
     
128. <p style="">qpic_nand_read_oob: ecc failure
     
129. while reading from 3580800</p>
     
130. 
     
131. <div style="">…………</div>
     
132. 
     
133. <p style="">qpic_nand_read_oob: ecc failure
     
134. while reading from 5821000</p>
     
135. 
     
136. <p style="">Read 0 bytes from volume kernel
     
137. to 44000000</p>
     
138. 
     
139. <p style="">No size specified -> Using
     
140. max size (3809280)</p>
     
141. 
     
142. <div style="">Erasing NAND...</div>
     
143. 
     
144. <p style="">Erasing at 0x7e0000 -- 100%
     
145. complete.</p>
     
146. 
     
147. <div style="">Writing to NAND... OK</div>
     
148. 
     
149. <p style="">## Loading kernel from FIT Image
     
150. at 44000000 ...</p>
     
151. 
     
152. <div style="">   Using 'config@cp03-c1' configuration</div>
     
153. 
     
154. <div style="">   Trying 'kernel@1' kernel subimage</div>
     
155. 
     
156. <div style="">     …………</div>
     
157. 
     
158. <div style="">   Verifying Hash Integrity ... crc32+ sha1+ OK</div>
     
159. 
     
160. <div style="">   Booting using the fdt blob at 0x44376e58</div>
     
161. 
     
162. <div style="">   Uncompressing Kernel Image ... OK</div>
     
163. 
     
164. <p style="">   Loading Device Tree to 484ec000, end 484ff27a
     
165. ... OK</p>
     
166. 
     
167. <p style="">Could not find PCI in device
     
168. tree</p>
     
169. 
     
170. <p style="">Using machid 0x8030200 from
     
171. environment</p>
     
172. 
     
173. <div style=""> </div>
     
174. 
     
175. <div style="">Starting kernel ...</div>
     
176. 
     
177. <div style=""> </div>
     
178. 
     
179. <div style="">[    0.000000] Booting Linux on physical CPU 0x0</div>
     
180. 
     
181. <div style="">…………</div>
     
182. 
     
183. <div style="">[    0.317106] msm_rpm_log_probe: OK</div>
     
184. 
     
185. <div style="">…………</div>
     
186. 
     
187. <p style="">[    1.067462] 0x000000980000-0x000000a00000 :
     
188. "0:ART"</p>
     
189. 
     
190. <div style="">…………</div>
     
191. 
     
192. <p style="">[    5.327883] kmodloader: done loading kernel
     
193. modules from /etc/modules-boot.d/*</p>
     
194. 
     
195. <div style="">[    5.337009] init: - preinit -</div>
     
196. 
     
197. <p style="">Press the [f] key and hit
     
198. [enter] to enter failsafe mode</p>
     
199. 
     
200. <p style="">Press the [1], [2], [3] or [4]
     
201. key and hit [enter] to select the debug level</p>
     
202. 
     
203. <div style="">…………</div>
     
204. 
     
205. <p style="">[    9.904080] [<812de8ac>] (mount_fs)
     
206. from [<812f45e8>] (vfs_kern_mount+0x4c/0xf4)</p>
     
207. 
     
208. <p style="">[    9.911372] [<812f45e8>]
     
209. (vfs_kern_mount) from [<812f7688>] (do_mount+0x95c/0xae8)</p>
     
210. 
     
211. <div style="">[    9.918837]</div>
     
212. 
     
213. <div style=""> </div>
     
214. 
     
215. <div style="">Format: Log Type - Time(microsec) - Message - Optional Info       //如果跑时间代码，没有这一步则断电重启</div>
     
216. 
     
217. <p style="">Log Type: B - Since Boot(Power
     
218. On Reset),  D - Delta,  S - Statistic</p>
     
219. 
     
220. <p style="">S -
     
221. QC_IMAGE_VERSION_STRING=BOOT.XF.0.3-00077-IPQ60xxLZB-2</p>
     
222. 
     
223. <p style="">S -
     
224. IMAGE_VARIANT_STRING=IPQ6018LA</p>
     
225. 
     
226. <div style="">…………</div>
     
227. 
     
228. <div style="">D -    814137 - SBL1, Delta</div>
     
229. 
     
230. <p style="">S - Flash Throughput, 4000
     
231. KB/s  (2155057 Bytes,  431900 us)</p>
     
232. 
     
233. <div style="">S - Core 0 Frequency, 800 MHz</div>
     
234. 
     
235. <div style="">S - DDR Frequency, 466 MHz</div>
     
236. 
     
237. <div style=""> </div>
     
238. 
     
239. <div style=""> </div>
     
240. 
     
241. <p style="">U-Boot 2016.01 (Jul 13 2020 -
     
242. 12:00:51 +0000), Build: jenkins-common_router_openwrt_ota_publish-75</p>
     
243. 
     
244. <div style=""> </div>
     
245. 
     
246. <div style="">…………</div>
     
247. 
     
248. <div style=""> </div>
     
249. 
     
250. <p style="">PCI0 is not defined in the
     
251. device tree</p>
     
252. 
     
253. <div style="">In:    serial@78B1000</div>
     
254. 
     
255. <div style="">Out:   serial@78B1000</div>
     
256. 
     
257. <div style="">Err:   serial@78B1000</div>
     
258. 
     
259. <div style="">machid: 8030200</div>
     
260. 
     
261. <p style="">eth0 MAC Address from ART is not
     
262. valid,use random ethaddr</p>
     
263. 
     
264. <div style="">bootwait is on, bootdelay=5                   //此时中断进程已打开，只要按键盘任意键即可中断AutoBoot</div>
     
265. 
     
266. <p style="">### main_loop:
     
267. bootcmd="bootmiwifi"</p>
     
268. 
     
269. <p style="">Hit any key to stop
     
270. autoboot:  0</p>
     
271. 
     
272. <div style=""> </div>
     
273. 
     
274. <div style="">Net:   MAC0 addr:…………</div>
     
275. 
     
276. <div style="">PHY ID1: 0x4d</div>
     
277. 
     
278. <div style="">PHY ID2: 0xd0b1</div>
     
279. 
     
280. <div style="">EDMA ver 1 hw init</div>
     
281. 
     
282. <p style="">Num rings - TxDesc:1 (0-0)
     
283. TxCmpl:1 (0-0)</p>
     
284. 
     
285. <div style="">RxDesc:1 (15-15) RxFill:1 (7-7)</div>
     
286. 
     
287. <p style="">ipq6018_edma_alloc_rings:
     
288. successfull</p>
     
289. 
     
290. <div style="">…………</div>
     
291. 
     
292. <div style=""> </div>
     
293. 
     
294. 
     
295. <div>
     
296. 
     
297. <div style="">IPQ6018#                                                    //成功进入U-Boot<b><span style="color:red;font-size:8.0pt;"></span></b></div></div>

复制代码

zcmrp

看看怎么样

jiangmmnn

好好好好好好好好

╩华夏の鹰╩

可按以下步骤操作：

骑着猪去上学。

看一下看一下

Fox．xxoo

可按以下步骤操作：

xiaodongrong

学习一下下。。。。

ahlayqy0306

学习一下下。。。。

摸着奶子过河

学习一下

mingwei123

可按以下步骤操作

摸着奶子过河

学习一下下

victor2002

感谢楼主分享~~

无焱冰

牛啊  楼主大神   厉害！！！

lychq

看看能用不

single0212

通电无法中断autoboot进入U