Ethernet not working after resume from suspend state [ANSWERED]

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subhankhanm
Posts: 8
Joined: Tue Dec 15, 2015 4:37 pm

Ethernet not working after resume from suspend state [ANSWERED]

Postby subhankhanm » Fri Sep 16, 2016 2:00 pm

Hi,

I have a SOM module VAR-SOM-MX6 Rev 2.11 connected to a custom board.
I am using Yocto Fido Linux build.

My system details are given below.
cat /proc/version
Linux version 3.14.38-6QP_beta+g8740b9f (peter@lubuntu64) (gcc version 4.9.2 (GCC) ) #1 SMP PREEMPT Fri Sep 16 13:39:02 BST 2016

cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 10 (v7l)
BogoMIPS : 3.00
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc09
CPU revision : 10

processor : 1
model name : ARMv7 Processor rev 10 (v7l)
BogoMIPS : 3.00
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc09
CPU revision : 10

processor : 2
model name : ARMv7 Processor rev 10 (v7l)
BogoMIPS : 3.00
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc09
CPU revision : 10

processor : 3
model name : ARMv7 Processor rev 10 (v7l)
BogoMIPS : 3.00
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc09
CPU revision : 10

Hardware : Freescale i.MX6 Quad/DualLite (Device Tree)
Revision : 0000
Serial : 0000000000000000

I successfully able to resume the Linux from suspend state using a gpio. Please see details below:
echo mem > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.001 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
pic-irq pic-irq.20: pic_irq driver suspend
fec 2188000.ethernet eth0: Graceful transmit stop did not complete!
PM: suspend of devices complete after 33.802 msecs
PM: suspend devices took 0.040 seconds
PM: late suspend of devices complete after 0.526 msecs
PM: noirq suspend of devices complete after 0.652 msecs
Disabling non-boot CPUs ...
CPU1: shutdown
CPU2: shutdown
CPU3: shutdown
Enabling non-boot CPUs ...
CPU1: Booted secondary processor
CPU1 is up
CPU2: Booted secondary processor
CPU2 is up
CPU3: Booted secondary processor
CPU3 is up
PM: noirq resume of devices complete after 0.352 msecs
pic irq interrupt
PM: early resume of devices complete after 0.448 msecs
gpmi-nand 112000.gpmi-nand: enable the asynchronous EDO mode 5
pic-irq pic-irq.20: pic_irq driver resumed
PM: resume of devices complete after 116.606 msecs
PM: resume devices took 0.110 seconds
Restarting tasks ... done.
root@var-som-mx6:~# ata1: SATA link down (SStatus 0 SControl 300)
libphy: 2188000.ethernet:07 - Link is Up - 1000/Full

I am having a problem with the ethernet after the Linux has resumed. It's unable to connect to the PC. At the hardware, the ethernet LEDs are off. It looks like the ethernet driver s unable to resume.

After few minutes, I am getting the following message on my console
NETDEV WATCHDOG: eth0 (fec): transmit queue 0 timed out
Modules linked in: wl18xx(O) wlcore(O) mac80211(O) cfg80211(O) mxc_v4l2_capture ipu_bg_overlay_sdc ipu_still ipu_prp_enc ipu_csi_enc ipu_fg_overlay_sdc wlcore_sdio(O) ov5640_camera_mipi_int compat(O) v4l2_int_device mxc_dcic
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.14.38-6QP_beta+g8740b9f #1
[<80015688>] (unwind_backtrace) from [<80011758>] (show_stack+0x10/0x14)
[<80011758>] (show_stack) from [<80702c0c>] (dump_stack+0x7c/0xbc)
[<80702c0c>] (dump_stack) from [<80031890>] (warn_slowpath_common+0x70/0x8c)
[<80031890>] (warn_slowpath_common) from [<800318dc>] (warn_slowpath_fmt+0x30/0x40)
[<800318dc>] (warn_slowpath_fmt) from [<805f2b98>] (dev_watchdog+0x25c/0x268)
[<805f2b98>] (dev_watchdog) from [<8003b8cc>] (call_timer_fn.isra.33+0x24/0x88)
[<8003b8cc>] (call_timer_fn.isra.33) from [<8003ba90>] (run_timer_softirq+0x160/0x1e4)
[<8003ba90>] (run_timer_softirq) from [<800358f4>] (__do_softirq+0x140/0x248)
[<800358f4>] (__do_softirq) from [<80035c84>] (irq_exit+0xb8/0xf4)
[<80035c84>] (irq_exit) from [<8000ed50>] (handle_IRQ+0x44/0x90)
[<8000ed50>] (handle_IRQ) from [<8000856c>] (gic_handle_irq+0x2c/0x5c)
[<8000856c>] (gic_handle_irq) from [<80012240>] (__irq_svc+0x40/0x70)
Exception stack(0x80a4ff18 to 0x80a4ff60)
ff00: 80a4ff60 3b9aca00
ff20: 9c11261c 00000067 80a5d548 80a5d548 ab7240d0 00000000 974e98e4 00000067
ff40: 80a4e000 00000000 00000017 80a4ff60 00000009 804db690 000b0013 ffffffff
[<80012240>] (__irq_svc) from [<804db690>] (cpuidle_enter_state+0x54/0xe4)
[<804db690>] (cpuidle_enter_state) from [<804db7d4>] (cpuidle_idle_call+0xb4/0x14c)
[<804db7d4>] (cpuidle_idle_call) from [<8000f07c>] (arch_cpu_idle+0x8/0x44)
[<8000f07c>] (arch_cpu_idle) from [<8006bbfc>] (cpu_startup_entry+0x100/0x14c)
[<8006bbfc>] (cpu_startup_entry) from [<809eeb10>] (start_kernel+0x350/0x35c)
---[ end trace f58bd19cfd1eb476 ]---
fec 2188000.ethernet eth0: TX ring dump
Nr SC addr len SKB
0 0x9c00 0x38742800 275 a91140c0
1 0x9c00 0x38743000 275 a9114600
2 0x9c00 0x38743800 146 a8b6ccc0
3 0x9c00 0x38744000 146 a8b6c240
4 0x9c00 0x38744800 146 a8b6c840
5 0x9c00 0x38745000 146 a880acc0
6 0x9c00 0x38745800 146 a880a300
7 0x9c00 0x38746000 146 a880a540
8 0x9c00 0x38746800 275 a91143c0
9 0x9c00 0x38747000 42 a880a600
10 0x9c00 0x38747800 42 a880af00
11 0x9c00 0x38968000 42 a880a900
12 0x9c00 0x38968800 146 a880a3c0
13 0x9c00 0x38969000 42 a880ae40
14 0x9c00 0x38969800 42 a880a6c0
15 0x9c00 0x3896a000 42 a8815cc0
16 0x9c00 0x3896a800 275 a9114300
17 0x9c00 0x3896b000 42 a8815000
18 0x9c00 0x3896b800 42 a8815600
19 0x9c00 0x3896c000 42 a88153c0
20 0x9c00 0x3896c800 42 a8815180
21 0x9c00 0x3896d000 42 a88156c0
22 0x9c00 0x3896d800 42 a880ab40
23 0x9c00 0x3896e000 42 a880a240
24 0x9c00 0x3896e800 42 a880e240
25 0x9c00 0x3896f000 42 a880e300
26 0x9c00 0x3896f800 275 a9114180
27 0x9c00 0x38970000 42 a880e9c0
28 0x9c00 0x38970800 42 a880e840
29 0x9c00 0x38971000 42 a880ee40
30 0x9c00 0x38971800 42 a880e0c0
31 0x9c00 0x38972000 42 a880ed80
32 0x9c00 0x38972800 42 a880e180
33 0x9c00 0x38973000 42 a880e600
34 0x9c00 0x38973800 42 a880ef00
35 0x9c00 0x38974000 42 a880e6c0
36 0x9c00 0x38974800 42 a880eb40
37 0x9c00 0x38975000 42 a880e900
38 0x9c00 0x38975800 42 a880e3c0
39 0x9c00 0x38976000 275 a9114240
40 0x9c00 0x38976800 42 a880e780
41 0x9c00 0x38977000 42 a8815540
42 0x9c00 0x38977800 42 a8a8d000
43 0x9c00 0x38978000 42 a8a8d300
44 0x9c00 0x38978800 42 a8a8d900
45 0x9c00 0x38979000 42 a8a8db40
46 0x9c00 0x38979800 42 a8a8d600
47 0x9c00 0x3897a000 42 a8a8d780
48 0x9c00 0x3897a800 42 a8a8dcc0
49 0x9c00 0x3897b000 275 a8fb1c00
50 0x9c00 0x3897b800 42 a8a8d840
51 0x9c00 0x3897c000 42 a8a8de40
52 0x9c00 0x3897c800 42 a8a8d480
53 0x9c00 0x3897d000 42 a880e000
54 0x9c00 0x3897d800 42 a8a8d3c0
55 0x9c00 0x3897e000 42 a87afcc0
56 0x9c00 0x3897e800 42 a87afc00
57 0x9c00 0x3897f000 42 a87afd80
58 0x9c00 0x3897f800 42 a8a8d180
59 0x9c00 0x38980000 42 a880ec00
60 0x9c00 0x38980800 42 a8a84780
61 0x9c00 0x38981000 42 a8a84480
62 0x9c00 0x38981800 275 a8fb1a80
63 0x9c00 0x38982000 42 a8a849c0
64 0x9c00 0x38982800 42 a8a843c0
65 0x9c00 0x38983000 42 a8a84f00
66 0x9c00 0x38983800 42 a8a84840
67 0x9c00 0x38984000 42 a8a84180
68 0x9c00 0x38984800 42 a8a84540
69 0x9c00 0x38985000 42 a8a84900
70 0x9c00 0x38985800 42 a8a84300
71 0x9c00 0x38986000 42 a8a84e40
72 0x9c00 0x38986800 275 a8fb1540
73 0x9c00 0x38987000 42 a8a84d80
74 0x9c00 0x38987800 42 a8a84240
75 0x9c00 0x38988000 42 a8a84000
76 0x9c00 0x38988800 42 a87aff00
77 0x9c00 0x38989000 42 a8a84a80
78 0x9c00 0x38989800 42 a8857000
79 0x9c00 0x3898a000 42 a8857480
80 0x9c00 0x3898a800 42 a8857900
81 0x9c00 0x3898b000 42 a8857e40
82 0x9c00 0x3898b800 42 a88570c0
83 0x9c00 0x3898c000 42 a8857b40
84 0x9c00 0x3898c800 42 a8857a80
85 0x9c00 0x3898d000 42 a8857780
86 0x9c00 0x3898d800 275 a8bd39c0
87 0x9c00 0x3898e000 42 a8857600
88 0x9c00 0x3898e800 42 a8857300
89 0x9c00 0x3898f000 42 a8857d80
90 0x9c00 0x3898f800 42 a8857540
91 0x9c00 0x38990000 42 a8857c00
92 0x9c00 0x38990800 42 a8857180
93 0x9c00 0x38991000 42 a88579c0
94 0x9c00 0x38991800 42 a8a84c00
95 0x9c00 0x38992000 275 a8bd3b40
96 0x9c00 0x38992800 42 a8857240
97 0x9c00 0x38993000 42 a87afe40
98 0x9c00 0x38993800 42 a8817540
99 0x9c00 0x38994000 42 a8817180
100 0x9c00 0x38994800 42 a88179c0
101 0x9c00 0x38995000 42 a8817480
102 0x9c00 0x38995800 42 a8817600
103 0x9c00 0x38996000 42 a8817840
104 0x9c00 0x38996800 42 a8817c00
105 0x9c00 0x38997000 42 a8817000
106 0x9c00 0x38997800 42 a8817cc0
107 0x9c00 0x38998000 42 a8817b40
108 0x9c00 0x38998800 42 a8817900
109 0x9c00 0x38999000 275 a872fd80
110 0x9c00 0x38999800 42 a88170c0
111 0x9c00 0x3899a000 42 a8817f00
112 0x9c00 0x3899a800 42 a88176c0
113 0x9c00 0x3899b000 42 a8817300
114 0x9c00 0x3899b800 42 a8817780
115 0x9c00 0x3899c000 42 a8817d80
116 0x9c00 0x3899c800 42 a88573c0
117 0x9c00 0x3899d000 42 a8818240
118 0x9c00 0x3899d800 42 a8818f00
119 0x9c00 0x3899e000 275 a8bd2f00
120 0x9c00 0x3899e800 42 a8818540
121 0x9c00 0x3899f000 42 a8818780
122 0x9c00 0x3899f800 42 a8818600
123 0x9c00 0x389a0000 42 a88189c0
124 0x9c00 0x389a0800 42 a8818cc0
125 0x9c00 0x389a1000 42 a8818480
126 0x9c00 0x389a1800 42 a88186c0
127 0x9c00 0x389a2000 42 a88180c0
128 0x9c00 0x389a2800 42 a8818180
129 0x9c00 0x389a3000 42 a8818c00
130 0x9c00 0x389a3800 42 a88183c0
131 0x9c00 0x389a4000 42 a8818a80
132 0x9c00 0x389a4800 275 a8816540
133 0x9c00 0x389a5000 42 a8818840
134 0x9c00 0x389a5800 42 a8818b40
135 0x9c00 0x389a6000 42 a8857840
136 0x9c00 0x389a6800 42 a8817e40
137 0x9c00 0x389a7000 42 a8818300
138 0x9c00 0x389a7800 42 a8be0840
139 0x9c00 0x389a8000 42 a8be0d80
140 0x9c00 0x389a8800 42 a8be0e40
141 0x9c00 0x389a9000 42 a8be0180
142 0x9c00 0x389a9800 275 a88163c0
143 0x9c00 0x389aa000 42 a8be0a80
144 0x9c00 0x389aa800 42 a8be0cc0
145 0x9c00 0x389ab000 42 a8be0300
146 0x9c00 0x389ab800 42 a8be09c0
147 0x9c00 0x389ac000 42 a8be0600
148 0x9c00 0x389ac800 42 a8be0480
149 0x9c00 0x389ad000 42 a8be03c0
150 0x9c00 0x389ad800 42 a8be0240
151 0x9c00 0x389ae000 42 a8be0f00
152 0x9c00 0x389ae800 42 a8818900
153 0x9c00 0x389af000 42 a889b6c0
154 0x9c00 0x389af800 42 a889bc00
155 0x9c00 0x389b0000 42 a889b300
156 0x9c00 0x389b0800 275 a88160c0
157 0x9c00 0x389b1000 42 a889b000
158 0x9c00 0x389b1800 42 a889b600
159 0x9c00 0x389b2000 42 a889be40
160 0x9c00 0x389b2800 42 a889bd80
161 0x9c00 0x389b3000 42 a889b0c0
162 0x9c00 0x389b3800 42 a889b780
163 0x9c00 0x389b4000 42 a889b240
164 0x9c00 0x389b4800 42 a889bb40
165 0x9c00 0x389b5000 275 a8e10540
166 0x9c00 0x389b5800 42 a889b900
167 0x9c00 0x389b6000 42 a889bcc0
168 0x9c00 0x389b6800 42 a889ba80
169 0x9c00 0x389b7000 42 a889bf00
170 0x9c00 0x389b7800 42 a889b540
171 0x9c00 0x389b8000 42 a889b480
172 0x9c00 0x389b8800 42 a889b9c0
173 0x9c00 0x389b9000 42 a8be0b40
174 0x9c00 0x389b9800 42 a889b840
175 0x9c00 0x389ba000 42 a88173c0
176 0x9c00 0x389ba800 42 a8b14c00
177 0x9c00 0x389bb000 42 a8b14900
178 0x9c00 0x389bb800 42 a8b14600
179 0x9c00 0x389bc000 275 a88eccc0
180 0x9c00 0x389bc800 42 a8b143c0
181 0x9c00 0x389bd000 42 a8b14240
182 0x9c00 0x389bd800 42 a8b14780
183 0x9c00 0x389be000 42 a8b14180
184 0x9c00 0x389be800 42 a8b14840
185 0x9c00 0x389bf000 42 a8b14f00
186 0x9c00 0x389bf800 42 a8be0000
187 0x9c00 0x389c0000 42 a8be3840
188 0x9c00 0x389c0800 275 a88eca80
189 0x9c00 0x389c1000 42 a8be3300
190 0x9c00 0x389c1800 42 a8be3780
191 0x9c00 0x389c2000 42 a8be3180
192 0x9c00 0x389c2800 42 a8be3f00
193 0x9c00 0x389c3000 42 a8be3000
194 0x9c00 0x389c3800 42 a8be30c0
195 0x9c00 0x389c4000 42 a8be3e40
196 0x9c00 0x389c4800 42 a8be33c0
197 0x9c00 0x389c5000 42 a8be3a80
198 0x9c00 0x389c5800 42 a8be3900
199 0x9c00 0x389c6000 42 a8be3b40
200 0x9c00 0x389c6800 42 a8be3240
201 0x9c00 0x389c7000 42 a8be3540
202 0x9c00 0x389c7800 275 a88ec480
203 0x9c00 0x389c8000 42 a8be3480
204 0x9c00 0x389c8800 42 a889b3c0
205 0x9c00 0x389c9000 42 a8b14540
206 0x9c00 0x389c9800 42 a8be3c00
207 0x9c00 0x389ca000 42 a8e56d80
208 0x9c00 0x389ca800 42 a8e56c00
209 0x9c00 0x389cb000 42 a8e56300
210 0x9c00 0x389cb800 42 a8e56480
211 0x9c00 0x389cc000 42 a8e56b40
212 0x9c00 0x389cc800 275 a88ec6c0
213 0x9c00 0x389cd000 42 a8e56cc0
214 0x9c00 0x389cd800 42 a8e56900
215 0x9c00 0x389ce000 42 a8e56600
216 0x9c00 0x389ce800 42 a8e56180
217 0x9c00 0x389cf000 42 a8e56a80
218 0x9c00 0x389cf800 42 a8e560c0
219 0x9c00 0x389d0000 42 a8e56840
220 0x9c00 0x389d0800 42 a8e566c0
221 0x9c00 0x389d1000 42 a8be3cc0
222 0x9c00 0x389d1800 42 a88eb480
223 0x9c00 0x389d2000 42 a88ebb40
224 0x9c00 0x389d2800 42 a88ebe40
225 0x9c00 0x389d3000 275 a88ec840
226 0x9c00 0x389d3800 42 a88eba80
227 0x9c00 0x389d4000 42 a88eb180
228 0x9c00 0x389d4800 42 a88eb240
229 0x9c00 0x389d5000 42 a88ebc00
230 0x9c00 0x389d5800 42 a88eb600
231 0x9c00 0x389d6000 42 a88eb9c0
232 0x9c00 0x389d6800 42 a88ebd80
233 0x9c00 0x389d7000 42 a88eb900
234 0x9c00 0x389d7800 42 a88eb000
235 0x9c00 0x389d8000 275 a88ec900
236 0x9c00 0x389d8800 42 a88eb6c0
237 0x9c00 0x389d9000 42 a8e56e40
238 0x9c00 0x389d9800 42 a88ebf00
239 0x9c00 0x389da000 42 a8b14300
240 0x9c00 0x389da800 42 a88ee6c0
241 0x9c00 0x389db000 42 a88ee3c0
242 0x9c00 0x389db800 42 a88eecc0
243 0x9c00 0x389dc000 42 a88ee180
244 0x9c00 0x389dc800 42 a88ee000
245 0x9c00 0x389dd000 42 a88ee900
246 0x9c00 0x389dd800 42 a88eee40
247 0x9c00 0x389de000 42 a88ee840
248 0x9c00 0x389de800 42 a88ee480
249 0x9c00 0x389df000 275 a88ec180
250 0x9c00 0x389df800 42 a88ee540
251 0x9c00 0x389e0000 42 a88ee0c0
252 0x9c00 0x389e0800 42 a88eeb40
253 0x9c00 0x389e1000 42 a88eb300
254 0x9c00 0x389e1800 42 a8e56780
255 0x9c00 0x389e2000 42 a8853600
256 0x9c00 0x389e2800 42 a8853e40
257 0x9c00 0x389e3000 42 a88530c0
258 0x9c00 0x389e3800 275 a88ec000
259 0x9c00 0x389e4000 42 a8853180
260 0x9c00 0x389e4800 42 a8853000
261 0x9c00 0x389e5000 42 a8853480
262 0x9c00 0x389e5800 42 a8853240
263 0x9c00 0x389e6000 42 a8853f00
264 0x9c00 0x389e6800 42 a8853a80
265 0x9c00 0x389e7000 42 a8853300
266 0x9c00 0x389e7800 42 a88eef00
267 0x9c00 0x389e8000 42 a8853840
268 0x9c00 0x389e8800 42 a8e6dc00
269 0x9c00 0x389e9000 42 a8e6de40
270 0x9c00 0x389e9800 42 a8e6df00
271 0x9c00 0x389ea000 42 a8e6d3c0
272 0x9c00 0x389ea800 275 a8e22480
273 0x9c00 0x389eb000 42 a8e6d780
274 0x9c00 0x389eb800 42 a8e6db40
275 0x9c00 0x389ec000 42 a8e6d0c0
276 0x9c00 0x389ec800 42 a8e6d9c0
277 0x9c00 0x389ed000 42 a8e6d840
278 0x9c00 0x389ed800 42 a8e6d180
279 0x9c00 0x389ee000 42 a8e6dd80
280 0x9c00 0x389ee800 42 a8e6d300
281 0x9c00 0x389ef000 275 a8e22000
282 0x9c00 0x389ef800 42 a8e6d540
283 0x9c00 0x389f0000 42 a88eea80
284 0x9c00 0x389f0800 42 a8853780
285 0x9c00 0x389f1000 42 a8d050c0
286 0x9c00 0x389f1800 42 a8d05cc0
287 0x9c00 0x389f2000 42 a8d05f00
288 0x9c00 0x389f2800 42 a8d05b40
289 0x9c00 0x389f3000 42 a8d05540
290 0x9c00 0x389f3800 42 a8d05240
291 0x9c00 0x389f4000 42 a8d053c0
292 0x9c00 0x389f4800 42 a8d05600
293 S 0x0000 0x00000000 162 (null)
294 0x0000 0x00000000 162 (null)
295 0x0000 0x00000000 150 (null)
296 0x0000 0x00000000 162 (null)
297 0x0000 0x00000000 150 (null)
298 0x0000 0x00000000 158 (null)
299 0x0000 0x00000000 150 (null)
300 0x0000 0x00000000 275 (null)
301 0x0000 0x00000000 146 (null)
302 0x0000 0x00000000 146 (null)
303 0x0000 0x00000000 146 (null)
304 0x0000 0x00000000 146 (null)
305 0x0000 0x00000000 158 (null)
306 0x0000 0x00000000 178 (null)
307 0x0000 0x00000000 166 (null)
308 0x0000 0x00000000 281 (null)
309 0x0000 0x00000000 162 (null)
310 0x0000 0x00000000 162 (null)
311 0x0000 0x00000000 162 (null)
312 0x0000 0x00000000 162 (null)
313 0x0000 0x00000000 146 (null)
314 0x0000 0x00000000 158 (null)
315 0x0000 0x00000000 158 (null)
316 0x0000 0x00000000 146 (null)
317 0x0000 0x00000000 146 (null)
318 0x0000 0x00000000 158 (null)
319 0x0000 0x00000000 158 (null)
320 0x0000 0x00000000 158 (null)
321 0x0000 0x00000000 158 (null)
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Any information is much appreciated.

Thanks
Subhan

Eran.M
Posts: 140
Joined: Tue Jan 26, 2016 10:49 am

Re: Ethernet not working after resume from suspend state

Postby Eran.M » Sun Sep 18, 2016 8:51 am

It works with our VAR-MX6CustomBoard carrier - just verified with both v51 (Fido) and v64 (Jethro) of our Recovery SD card.
Please check your carrier board.

subhankhanm
Posts: 8
Joined: Tue Dec 15, 2015 4:37 pm

Re: Ethernet not working after resume from suspend state

Postby subhankhanm » Mon Sep 19, 2016 11:45 am

Hi,

Thank you for your reply.

I done the test using v51 (Fido) (not with jethro, as we are not using jethro for our device).
I downloaded the sd card image from ftp://ftp.variscite.com/VAR-SOM-MX6/Sof ... cy-images/
File used for SD card is mx6-som-recovery-sd.v51.img.gz

Hardware used is
SOM module : VAR-SOM-MX6 Rev 2.11 and carrier board VAR-MX6CustomBoard Rev 1.3

When resumed from standby i.e using echo standby > /sys/power/state, ethernet also resumes normally.

But when used echo mem > /sys/power/state command to put the system to low power. After resume the ethernet does not start. Please see attached log file.

Am I doing anything wrong here?

Regards,
Subhan
Attachments
teraterm.txt
(26.68 KiB) Downloaded 264 times

Eran.M
Posts: 140
Joined: Tue Jan 26, 2016 10:49 am

Re: Ethernet not working after resume from suspend state

Postby Eran.M » Mon Sep 19, 2016 3:06 pm

Hi Subhan.
After a few more tries, I see that sometimes the Ethernet indeed does not resume.
We'll look into this and update.

subhankhanm
Posts: 8
Joined: Tue Dec 15, 2015 4:37 pm

Re: Ethernet not working after resume from suspend state

Postby subhankhanm » Mon Sep 19, 2016 3:56 pm

Hi,

Thank you. Please let my know when you release an update.

Regards,
Subhan

Oren.R
Posts: 65
Joined: Tue Dec 16, 2014 7:47 pm

Re: Ethernet not working after resume from suspend state

Postby Oren.R » Mon Sep 19, 2016 7:15 pm

Hi
by default, the v2.21 is not aimed for suspend-resume
we have a dedicated v2.2L version (L stands for low power)
This L version, suspends also to 10ma!
Please ask at sales@variscite.com


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