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器件型号：AM4372 主题中讨论的其他器件：AM4378
您好、Andrew
同时、我们已将 Linux 内核从 TI GIT (SRCREV ="76979ae4875941639fe73982a10d69c8cfc533d9")更新为版本5.10.145、此版本也会出现问题。
此致
Paweł μ A
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你(们)好、Andreas
此时、时钟为52MHz、总线宽度为4位：
# cat /sys/kernel/debug/mmc1/iosclock: 52000000 Hzvdd: 21 (3.3 ~ 3.4 V)bus mode: 2 (push-pull)chip select: 0 (don't care)power mode: 2 (on)bus width: 2 (4 bits)timing spec: 1 (mmc high-speed)signal voltage: 0 (3.30 V)driver type: 0 (driver type B)
Best Regards
Paweł
你(们)好、Andreas
将 mmc1的时钟更改为26MHz 后、问题也会重现：
[64.668415] sdhci-OMAP 481d8000.mmc：t 中控制器复位等待超时
[74.723248] mmc1：等待硬件 cmd 中断超时。
[74.729046] mmc1：sdhci：==== SDHCI 寄存器转储====
[74.735532] mmc1：sdhci：sys addr：0x00000000 |版本：0x00003101
[74.742013] mmc1：sdhci：blk 大小：0x00000000 | Blk cnt：0x00000000
[74.748493] mmc1：sdhci：参数：0x00010000 | Trn 模式：0x00000000
[74.754971] mmc1：sdhci：present：0x01f70000 | Host ctl：0x00000000
[74.761450] mmc1：sdhci：power：0x00000000 | Blk GAP：0x00000000
[74.767928] mmc1：sdhci：WAKE-UP：0x00000000 |时钟：0x00000000
[74.774406] mmc1：sdhci：超时：0x00000000 | int stat：0x00000000
[74.780885] mmc1：sdhci：int enab：0x007f0003 | sig enab：0x007f0003
[74.787364] mmc1：sdhci：acmd stat：0x00000000 |插槽内部：0x00000000
[74.793842] mmc1：sdhci：cap：0x05e10080 | caps_1：0x00000000
[74.800320] mmc1：sdhci：cmd：0x00000d1a |最大电流：0x00000000
[74.806798] mmc1：sdhci：RESP[0]：0x00000000 | Resp[1]：0x00000000
[74.813276] mmc1：sdhci：RESP[2]：0x00000000 | Resp[3]：0x00000000
[74.819751] mmc1：sdhci：host ctl2：0x00000000
[74.824223] mmc1：sdhci：========================================================
[74.859991] sdhci-OMAP 481d8000.mmc：t 中的控制器复位超时
# cat /sys/kernel/debug/mmc1/ios
时钟：26000000 Hz
VDD：21 (3.3 ~ 3.4V)
总线模式：2 (推挽)
芯片选择：0 (无关)
功率模式：2 (开启)
总线宽度：2 (4位)
时序规格：1 (MMC 高速)
信号电压：0 (3.30V)
驱动程序类型：0 (驱动程序类型 B)
此致
Paweł μ A
尊敬的 Andreas：
我还涉及到这个问题、 器件的硬件部分在我身边。 下面的原理图显示了如何将 eMMC 与 MMC1端口上的 Sitara 连接在一起。 我检查了电源并观察 clk/data 信号、器件启动时看起来不错。 电压也是标称值、没有任何毛刺脉冲。 此外、如果我的观察结果正确、如果我看到 reboot 命令"关于 mmc1的超时 POST "出现问题 、则信号 clk/data 将关闭。 但是、如果 reboot 命令运行正常、则在重新安装系统之前仍会观察到信号 clk/data。
我的软件团队同事在重新启动时增加了一些延迟、因为我需要更多的时间来观察信号、似乎无意中解决了这个问题、但这不是解决方案。
我可以从我的方面检查什么，有什么建议？
大家好、Pawel、
感谢您收集 EVM 上的日期。
昨晚我在 AM437x GP EVM 上测试了 SD 卡安装/安装应力测试。 它在超过35K 次迭代的情况下持续一夜运行、但未触发超时。
我使用了 SDK v8.2.0.24预构建的基本文件系统、使用 NFS 根文件系统、然后运行以下脚本以装载/装载 SD 卡的第二个分区。
#!/bin/sh mount /dev/mmcblk0p2 /mnt || exit 1 ls /mnt umount /mnt || exit 2
(我有另一个脚本循环运行此脚本。)
现在我已停止测试、并在 SD 卡上运行 Linux 基本文件系统的情况下运行"reboot -f"。 让我们看看该测试是否会触发超时问题。
你(们)好
感谢您的更新、到目前为止、当我们板上的系统从 eMMC 运行时、这两个问题都重现了。 我们计划为 AM437x GP EVM 准备相同的设置。
另一个看法是，今天，当问题再次出现时，最后又有一条线：
[ 64.025605] mmc1: card 0001 removed
Sending all processes the TERM signal...Sending all processes the KILL signal...Deactivating swap...Unmounting local filesystems...[ 22.765354] EXT4-fs (dm-0): re-mounted. Opts: (null)Rebooting... [ 33.122542] mmc1: Timeout waiting for hardware cmd interrupt.[ 33.128355] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========[ 33.134843] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101[ 33.141325] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000[ 33.147804] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000[ 33.154287] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000[ 33.160766] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000[ 33.167247] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000[ 33.173726] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000[ 33.180207] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003[ 33.186687] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000[ 33.193166] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000[ 33.199646] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000[ 33.206126] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000[ 33.212605] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000[ 33.219083] mmc1: sdhci: Host ctl2: 0x00000000[ 33.223555] mmc1: sdhci: ============================================[ 33.259633] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 33.297324] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 43.362522] mmc1: Timeout waiting for hardware cmd interrupt.[ 43.368320] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========[ 43.374804] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101[ 43.381286] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000[ 43.387767] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000[ 43.394248] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000[ 43.400728] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000[ 43.407207] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000[ 43.413686] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000[ 43.420167] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003[ 43.426647] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000[ 43.433126] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000[ 43.439606] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000[ 43.446085] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000[ 43.452564] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000[ 43.459041] mmc1: sdhci: Host ctl2: 0x00000000[ 43.463513] mmc1: sdhci: ============================================[ 43.499242] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 43.536926] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 53.602515] mmc1: Timeout waiting for hardware cmd interrupt.[ 53.608308] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========[ 53.614794] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101[ 53.621276] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000[ 53.627756] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000[ 53.634236] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000[ 53.640715] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000[ 53.647194] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000[ 53.653673] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000[ 53.660153] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003[ 53.666632] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000[ 53.673112] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000[ 53.679591] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000[ 53.686070] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000[ 53.692549] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000[ 53.699026] mmc1: sdhci: Host ctl2: 0x00000000[ 53.703497] mmc1: sdhci: ============================================[ 53.739221] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 53.776899] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 63.842515] mmc1: Timeout waiting for hardware cmd interrupt.[ 63.848307] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========[ 63.854791] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101[ 63.861273] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000[ 63.867754] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000[ 63.874235] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000[ 63.880713] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000[ 63.887193] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000[ 63.893673] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000[ 63.900153] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003[ 63.906632] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000[ 63.913112] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000[ 63.919592] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000[ 63.926071] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000[ 63.932551] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000[ 63.939028] mmc1: sdhci: Host ctl2: 0x00000000[ 63.943499] mmc1: sdhci: ============================================[ 63.979238] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 64.016913] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset[ 64.025605] mmc1: card 0001 removed
大家好、Pawel、
[引用 userid="133075" URL"~/support/processors-group/processors/f/processors-forum/1167358/am4372-sdhci-omap-timout-during-reboot/4436603 #4436603"]另一个看法是，今天，当问题再次出现时，最后又有一条线：
[ 64.025605] mmc1: card 0001 removed
在正常情况下，如果成功重新引导，日志中是否打印了此行？
你(们)好
否、在成功重新引导期间、不会打印：
Sending all processes the TERM signal...logoutSending all processes the KILL signal...Deactivating swap...Unmounting local filesystems...[ 1587.586922] EXT4-fs (dm-0): re-mounted. Opts: (null)Rebooting... [ 1587.885399] reboot: Restarting systemCCCCCCCC
谢谢 Pawel、
您能否应用以下内核调试补丁并在您的平台上重新运行测试？ 它应该转储内核调用堆栈、这可能会显示如何触发此卡删除例程。 如果发生超时问题并且调用堆栈被转储到日志中、请提供内核关闭日志。
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 4383c262b3f5..5aafea731a38 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -406,6 +406,7 @@ void mmc_remove_card(struct mmc_card *card)
} else {
pr_info("%s: card %04x removed\n",
mmc_hostname(card->host), card->rca);
+ dump_stack();
}
device_del(&card->dev);
of_node_put(card->dev.of_node);没问题、以下是调用堆栈的关断日志：
Sending all processes the TERM signal... Sending all processes the KILL signal... Deactivating swap... Unmounting local filesystems... [ 40.692484] EXT4-fs (dm-0): re-mounted. Opts: (null) Rebooting... [ 51.043986] mmc1: Timeout waiting for hardware cmd interrupt. [ 51.049801] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 51.056287] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 51.062769] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 51.069249] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 51.075729] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 51.082209] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 51.088688] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 51.095168] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 51.101648] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 51.108128] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 51.114608] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 51.121088] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 51.127568] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 51.134047] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 51.140524] mmc1: sdhci: Host ctl2: 0x00000000 [ 51.144997] mmc1: sdhci: ============================================ [ 51.181055] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 51.218764] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 61.284005] mmc1: Timeout waiting for hardware cmd interrupt. [ 61.289804] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 61.296289] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 61.302770] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 61.309252] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 61.315733] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 61.322213] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 61.328693] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 61.335173] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 61.341655] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 61.348134] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 61.354614] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 61.361094] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 61.367574] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 61.374053] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 61.380530] mmc1: sdhci: Host ctl2: 0x00000000 [ 61.385003] mmc1: sdhci: ============================================ [ 61.420751] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 61.458450] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 71.523985] mmc1: Timeout waiting for hardware cmd interrupt. [ 71.529781] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 71.536267] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 71.542748] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 71.549228] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 71.555709] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 71.562188] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 71.568667] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 71.575146] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 71.581626] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 71.588105] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 71.594585] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 71.601065] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 71.607544] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 71.614023] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 71.620500] mmc1: sdhci: Host ctl2: 0x00000000 [ 71.624971] mmc1: sdhci: ============================================ [ 71.660715] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 71.698414] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 81.763987] mmc1: Timeout waiting for hardware cmd interrupt. [ 81.769779] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 81.776262] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 81.782743] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 81.789224] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 81.795704] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 81.802184] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 81.808664] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 81.815142] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 81.821621] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 81.828100] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 81.834579] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 81.841059] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 81.847538] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 81.854018] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 81.860495] mmc1: sdhci: Host ctl2: 0x00000000 [ 81.864966] mmc1: sdhci: ============================================ [ 81.900700] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 81.938397] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 81.947059] mmc1: card 0001 removed [ 81.950578] Printing stack [ 81.950605] CPU: 0 PID: 68 Comm: kworker/0:4 Not tainted 5.10.153-g3eee621d16 #1 [ 81.961391] Hardware name: Generic AM43 (Flattened Device Tree) [ 81.967456] Workqueue: events_freezable mmc_rescan [ 81.972341] [<c010d058>] (unwind_backtrace) from [<c010a218>] (show_stack+0x10/0x14) [ 81.980221] [<c010a218>] (show_stack) from [<c072269c>] (mmc_remove_card+0xb8/0xbc) [ 81.987985] [<c072269c>] (mmc_remove_card) from [<c0724060>] (mmc_detect+0x3c/0x6c) [ 81.995728] [<c0724060>] (mmc_detect) from [<c07217a8>] (mmc_rescan+0xec/0x53c) [ 82.003122] [<c07217a8>] (mmc_rescan) from [<c014139c>] (process_one_work+0x1b8/0x450) [ 82.011138] [<c014139c>] (process_one_work) from [<c014168c>] (worker_thread+0x58/0x5cc) [ 82.019332] [<c014168c>] (worker_thread) from [<c0146224>] (kthread+0x140/0x184) [ 82.026815] [<c0146224>] (kthread) from [<c0100148>] (ret_from_fork+0x14/0x2c) [ 82.034105] Exception stack(0xc2c4ffb0 to 0xc2c4fff8) [ 82.039200] ffa0: 00000000 00000000 00000000 00000000 [ 82.047460] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 82.055725] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
大家好、Pawel、
感谢您的日志。 它显示了在内核工作中调用的 MMC 删除。 是否可以添加以下内核补丁并再次捕获故障？ 日志将显示调度内核工作的调用堆栈。 不再需要之前的内核调试补丁、您可以根据需要将其删除。
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index eb82f6aac951..722651e445b6 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1466,6 +1466,7 @@ void _mmc_detect_change(struct mmc_host *host, unsigned long delay, bool cd_irq)
__pm_wakeup_event(host->ws, 5000);
host->detect_change = 1;
+ dump_stack();
mmc_schedule_delayed_work(&host->detect, delay);
}
大家好、Pawel、
我这边只是一个更新-我已经在 AM437x GP EVM 上测试了以下3种场景、每种场景都运行了12-24小时、但没有发现任何重启问题、没有 MMC 超时。
－NFS 上的 rootfs，挂载/卸载 SD 卡第二个分区(ext4)；
－SD 卡上的 rootfs，重新引导-f；
－eMMC 上的 rootfs，重新引导－f
我认为我们可能也应该从硬件角度来看待您的系统、但还不确定从哪里开始。
你(们)好
感谢您的更新、 我们计划明天对 AM437x GP EVM 进行测试。 关于硬件、我想我们可以通过本地支持、电路板原理图、Linux 内核配置和 DTS 文件为您提供帮助。
我已经在 core.c 中的_mmc_detect_change 函数中添加了 dump_stack()，但我只能在 启动期间看到此函数的调用。 我在故障和正常模式下都看不到它处于关断状态：
CCCCCCCC U-Boot SPL 2021.10-gd80bb749fa (Oct 04 2021 - 15:09:26 +0000) Trying to boot from MMC1 U-Boot 2021.10-gd80bb749fa (Oct 04 2021 - 15:09:26 +0000) CPU : AM437X-GP rev 1.2 Model: xxx DRAM: 1 GiB MMC: OMAP SD/MMC: 0 Loading Environment from FAT... OK Loading Environment from nowhere... OK In: serial@44e09000 Out: serial@44e09000 Err: serial@44e09000 Net: eth2: ethernet@4a100000 Hit any key to stop autoboot: 0 The rootfspart variable was imported from FAT (2) 12907008 bytes read in 730 ms (16.9 MiB/s) 72376 bytes read in 7 ms (9.9 MiB/s) Kernel image @ 0x82000000 [ 0x000000 - 0xc4f200 ] ## Flattened Device Tree blob at 88000000 Booting using the fdt blob at 0x88000000 Loading Device Tree to bdf55000, end bdf69ab7 ... OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 5.10.153-g3eee621d16 (oe-user@oe-host) (arm-poky-linux-gnueabi-gcc (GCC) 9.5.0, GNU ld (GNU Binutils) 2.34.0.20200910) #1 PREEMPT Fri Dec 2 16:30:46 UTC 2022 [ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt: Machine model: xxx [ 0.000000] Memory policy: Data cache writeback [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 48 MiB at 0xbac00000 [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000080000000-0x00000000afffffff] [ 0.000000] HighMem [mem 0x00000000b0000000-0x00000000bfffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000bfffffff] [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] AM437x ES1.2 (neon) [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 260416 [ 0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/mmcblk1p2 rootwait ro [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 961520K/1048576K available (9216K kernel code, 672K rwdata, 3088K rodata, 13312K init, 277K bss, 37904K reserved, 49152K cma-reserved, 212920K highmem) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] L2C: platform modifies aux control register: 0x0e030000 -> 0x3e430000 [ 0.000000] L2C: DT/platform modifies aux control register: 0x0e030000 -> 0x3e430000 [ 0.000000] L2C-310 enabling early BRESP for Cortex-A9 [ 0.000000] OMAP L2C310: ROM does not support power control setting [ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled [ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB [ 0.000000] L2C-310: CACHE_ID 0x410000c9, AUX_CTRL 0x4e430000 [ 0.000000] TI gptimer clocksource: always-on /ocp@44000000/interconnect@44c00000/segment@200000/target-module@31000 [ 0.000011] sched_clock: 32 bits at 25MHz, resolution 40ns, wraps every 85899345900ns [ 0.000030] clocksource: dmtimer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 76450417870 ns [ 0.000160] OMAP clocksource: 32k_counter at 32768 Hz [ 0.000176] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns [ 0.000456] TI gptimer clockevent: 25000000 Hz at /ocp@44000000/interconnect@48000000/segment@0/target-module@40000 [ 0.001733] Console: colour dummy device 80x30 [ 0.001797] Calibrating delay loop... 1594.16 BogoMIPS (lpj=7970816) [ 0.087723] pid_max: default: 32768 minimum: 301 [ 0.087955] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) [ 0.087984] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) [ 0.088984] CPU: Testing write buffer coherency: ok [ 0.089053] CPU0: Spectre v2: using BPIALL workaround [ 0.090156] Setting up static identity map for 0x80100000 - 0x80100060 [ 0.090330] rcu: Hierarchical SRCU implementation. [ 0.090449] EFI services will not be available. [ 0.091004] devtmpfs: initialized [ 0.104130] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4 [ 0.104425] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.104453] futex hash table entries: 256 (order: -1, 3072 bytes, linear) [ 0.108287] pinctrl core: initialized pinctrl subsystem [ 0.109256] DMI not present or invalid. [ 0.110083] NET: Registered protocol family 16 [ 0.111922] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.120434] thermal_sys: Registered thermal governor 'fair_share' [ 0.120448] thermal_sys: Registered thermal governor 'bang_bang' [ 0.120465] thermal_sys: Registered thermal governor 'step_wise' [ 0.120473] thermal_sys: Registered thermal governor 'user_space' [ 0.120926] cpuidle: using governor ladder [ 0.120965] cpuidle: using governor menu [ 0.945259] No ATAGs? [ 0.945298] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers. [ 0.945310] hw-breakpoint: maximum watchpoint size is 4 bytes. [ 0.973740] iommu: Default domain type: Translated [ 0.976144] SCSI subsystem initialized [ 0.976793] pps_core: LinuxPPS API ver. 1 registered [ 0.976810] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.976838] PTP clock support registered [ 0.976907] EDAC MC: Ver: 3.0.0 [ 0.979709] clocksource: Switched to clocksource dmtimer [ 0.987552] NET: Registered protocol family 2 [ 0.988385] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 0.989897] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) [ 0.989959] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 0.990033] TCP bind hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 0.990126] TCP: Hash tables configured (established 8192 bind 8192) [ 0.990313] UDP hash table entries: 512 (order: 1, 8192 bytes, linear) [ 0.990345] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes, linear) [ 0.990519] NET: Registered protocol family 1 [ 0.991204] RPC: Registered named UNIX socket transport module. [ 0.991224] RPC: Registered udp transport module. [ 0.991232] RPC: Registered tcp transport module. [ 0.991239] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 1.080690] Initialise system trusted keyrings [ 1.081004] workingset: timestamp_bits=14 max_order=18 bucket_order=4 [ 1.084999] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 1.085937] NFS: Registering the id_resolver key type [ 1.086015] Key type id_resolver registered [ 1.086024] Key type id_legacy registered [ 1.086111] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 1.086133] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 1.086177] ntfs: driver 2.1.32 [Flags: R/O]. [ 1.086981] Key type asymmetric registered [ 1.087003] Asymmetric key parser 'x509' registered [ 1.087065] bounce: pool size: 64 pages [ 1.087124] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 1.087138] io scheduler mq-deadline registered [ 1.087147] io scheduler kyber registered [ 1.217042] OMAP GPIO hardware version 0.1 [ 1.312731] ti-sysc: probe of 44e31000.target-module failed with error -16 [ 1.358012] ti-sysc: probe of 48040000.target-module failed with error -16 [ 1.393839] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400 [ 1.513227] debugfs: Directory '49000000.dma' with parent 'dmaengine' already present! [ 1.513269] edma 49000000.dma: TI EDMA DMA engine driver [ 1.524852] pinctrl-single 44e10800.pinmux: 199 pins, size 796 [ 1.575227] Serial: 8250/16550 driver, 6 ports, IRQ sharing enabled [ 1.578206] omap8250 44e09000.serial: No clock speed specified: using default: 48000000 [ 1.579169] printk: console [ttyS0] disabled [ 1.579352] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 56, base_baud = 3000000) is a 8250 [ 2.279539] printk: console [ttyS0] enabled [ 2.284887] omap8250 481a6000.serial: No clock speed specified: using default: 48000000 [ 2.294026] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 68, base_baud = 3000000) is a 8250 [ 2.303845] omap8250 481a8000.serial: No clock speed specified: using default: 48000000 [ 2.313009] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 69, base_baud = 3000000) is a 8250 [ 2.322774] omap8250 481aa000.serial: No clock speed specified: using default: 48000000 [ 2.331906] 481aa000.serial: ttyS5 at MMIO 0x481aa000 (irq = 70, base_baud = 3000000) is a 8250 [ 2.344004] omap_rng 48310000.rng: Random Number Generator ver. 20 [ 2.350529] random: crng init done [ 2.374717] loop: module loaded [ 2.387688] tpm_tis_spi spi1.0: 2.0 TPM (device-id 0x1B, rev-id 22) [ 2.449767] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000 [ 2.466397] davinci_mdio 4a101000.mdio: phy[2]: device 4a101000.mdio:02, driver unknown [ 2.475331] cpsw-switch 4a100000.switch: initialized cpsw ale version 1.4 [ 2.482263] cpsw-switch 4a100000.switch: ALE Table size 1024 [ 2.488058] cpsw-switch 4a100000.switch: cpts: overflow check period 500 (jiffies) [ 2.495823] cpsw-switch 4a100000.switch: CPTS: ref_clk_freq:250000000 calc_mult:2147483648 calc_shift:29 error:0 nsec/sec [ 2.506954] cpsw-switch 4a100000.switch: Detected MACID = 48:70:1e:bd:aa:6f [ 2.514909] cpsw-switch 4a100000.switch: initialized (regs 0x4a100000, pool size 256) hw_ver:0019010F 1.15 (0) [ 2.526630] rtc-pcf2123 spi2.0: spiclk 1000 KHz. [ 2.532094] rtc-pcf2123 spi2.0: registered as rtc1 [ 2.537016] i2c /dev entries driver [ 2.542927] device-mapper: ioctl: 4.43.0-ioctl (2020-10-01) initialised: dm-devel@redhat.com [ 2.553146] cpuidle: enable-method property 'ti,am4372' found operations [ 2.561734] sdhci: Secure Digital Host Controller Interface driver [ 2.567952] sdhci: Copyright(c) Pierre Ossman [ 2.573741] sdhci-pltfm: SDHCI platform and OF driver helper [ 2.581544] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22) [ 2.593354] sdhci-omap 481d8000.mmc: supply vqmmc not found, using dummy regulator [ 2.604996] NET: Registered protocol family 10 [ 2.610651] sdhci-omap 47810000.mmc: allocated mmc-pwrseq [ 2.616211] sdhci-omap 47810000.mmc: supply vqmmc not found, using dummy regulator [ 2.623918] sdhci-omap 48060000.mmc: Got CD GPIO [ 2.628752] sdhci-omap 48060000.mmc: supply vqmmc not found, using dummy regulator [ 2.650892] Segment Routing with IPv6 [ 2.654713] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 2.670660] NET: Registered protocol family 17 [ 2.676075] Key type dns_resolver registered [ 2.687579] omap_voltage_late_init: Voltage driver support not added [ 2.694135] _mmc_detec_change [ 2.694155] CPU: 0 PID: 59 Comm: kworker/u2:2 Not tainted 5.10.153-g3eee621d16 #1 [ 2.706193] Loading compiled-in X.509 certificates [ 2.711072] Hardware name: Generic AM43 (Flattened Device Tree) [ 2.717043] Workqueue: events_unbound async_run_entry_fn [ 2.730027] _mmc_detec_change [ 2.730052] CPU: 0 PID: 53 Comm: kworker/u2:1 Not tainted 5.10.153-g3eee621d16 #1 [ 2.741149] _mmc_detec_change [ 2.741161] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.10.153-g3eee621d16 #1 [ 2.760197] [<c010d058>] (unwind_backtrace) from [<c010a218>] (show_stack+0x10/0x14) [ 2.768016] [<c010a218>] (show_stack) from [<c09f1724>] (_mmc_detect_change+0x48/0x68) [ 2.777538] Hardware name: Generic AM43 (Flattened Device Tree) [ 2.783582] Hardware name: Generic AM43 (Flattened Device Tree) [ 2.789552] Workqueue: events_unbound async_run_entry_fn [ 2.794922] Workqueue: events_unbound async_run_entry_fn [ 2.800364] [<c010d058>] (unwind_backtrace) from [<c010a218>] (show_stack+0x10/0x14) [ 2.808214] [<c09f1724>] (_mmc_detect_change) from [<c07222f8>] (mmc_add_host+0x4c/0x6c) [ 2.816445] [<c010d058>] (unwind_backtrace) from [<c010a218>] (show_stack+0x10/0x14) [ 2.824279] [<c010a218>] (show_stack) from [<c09f1724>] (_mmc_detect_change+0x48/0x68) [ 2.832487] [<c07222f8>] (mmc_add_host) from [<c07371b0>] (__sdhci_add_host+0x180/0x318) [ 2.840799] [<c010a218>] (show_stack) from [<c09f1724>] (_mmc_detect_change+0x48/0x68) [ 2.848806] [<c09f1724>] (_mmc_detect_change) from [<c07222f8>] (mmc_add_host+0x4c/0x6c) [ 2.857019] tps65218-pwrbutton: Failed to locate of_node [id: -2] [ 2.863185] [<c07371b0>] (__sdhci_add_host) from [<c07441dc>] (sdhci_omap_probe+0x308/0x614) [ 2.871696] [<c09f1724>] (_mmc_detect_change) from [<c07222f8>] (mmc_add_host+0x4c/0x6c) [ 2.880141] tps65218-gpio: Failed to locate of_node [id: -2] [ 2.886243] [<c07222f8>] (mmc_add_host) from [<c07371b0>] (__sdhci_add_host+0x180/0x318) [ 2.894472] [<c07441dc>] (sdhci_omap_probe) from [<c06191a0>] (platform_drv_probe+0x48/0x98) [ 2.903001] [<c07222f8>] (mmc_add_host) from [<c07371b0>] (__sdhci_add_host+0x180/0x318) [ 2.911231] [<c07371b0>] (__sdhci_add_host) from [<c07441dc>] (sdhci_omap_probe+0x308/0x614) [ 2.919763] [<c06191a0>] (platform_drv_probe) from [<c0617044>] (really_probe+0xf0/0x398) [ 2.928038] [<c07371b0>] (__sdhci_add_host) from [<c07441dc>] (sdhci_omap_probe+0x308/0x614) [ 2.936584] [<c07441dc>] (sdhci_omap_probe) from [<c06191a0>] (platform_drv_probe+0x48/0x98) [ 2.945408] [<c0617044>] (really_probe) from [<c0617458>] (driver_probe_device+0x5c/0xb4) [ 2.953698] [<c07441dc>] (sdhci_omap_probe) from [<c06191a0>] (platform_drv_probe+0x48/0x98) [ 2.962316] [<c06191a0>] (platform_drv_probe) from [<c0617044>] (really_probe+0xf0/0x398) [ 2.970584] [<c0617458>] (driver_probe_device) from [<c0617500>] (__driver_attach_async_helper+0x50/0x54) [ 2.980273] [<c06191a0>] (platform_drv_probe) from [<c0617044>] (really_probe+0xf0/0x398) [ 2.988538] [<c0617044>] (really_probe) from [<c0617458>] (driver_probe_device+0x5c/0xb4) [ 2.997069] [<c0617500>] (__driver_attach_async_helper) from [<c014a554>] (async_run_entry_fn+0x44/0x140) [ 3.006785] [<c0617044>] (really_probe) from [<c0617458>] (driver_probe_device+0x5c/0xb4) [ 3.015089] [<c0617458>] (driver_probe_device) from [<c0617500>] (__driver_attach_async_helper+0x50/0x54) [ 3.024768] [<c0617458>] (driver_probe_device) from [<c0617500>] (__driver_attach_async_helper+0x50/0x54) [ 3.034464] [<c014a554>] (async_run_entry_fn) from [<c014139c>] (process_one_work+0x1b8/0x450) [ 3.043184] [<c0617500>] (__driver_attach_async_helper) from [<c014a554>] (async_run_entry_fn+0x44/0x140) [ 3.052929] [<c0617500>] (__driver_attach_async_helper) from [<c014a554>] (async_run_entry_fn+0x44/0x140) [ 3.062597] [<c014139c>] (process_one_work) from [<c014168c>] (worker_thread+0x58/0x5cc) [ 3.071032] [<c014a554>] (async_run_entry_fn) from [<c014139c>] (process_one_work+0x1b8/0x450) [ 3.079752] [<c014168c>] (worker_thread) from [<c0146224>] (kthread+0x140/0x184) [ 3.087469] [<c014a554>] (async_run_entry_fn) from [<c014139c>] (process_one_work+0x1b8/0x450) [ 3.096188] [<c014139c>] (process_one_work) from [<c014168c>] (worker_thread+0x58/0x5cc) [ 3.104399] [<c0146224>] (kthread) from [<c0100148>] (ret_from_fork+0x14/0x2c) [ 3.111737] [<c014139c>] (process_one_work) from [<c014168c>] (worker_thread+0x58/0x5cc) [ 3.119934] [<c014168c>] (worker_thread) from [<c0146224>] (kthread+0x140/0x184) [ 3.127404] Exception stack(0xc27fdfb0 to 0xc27fdff8) [ 3.132803] [<c014168c>] (worker_thread) from [<c0146224>] (kthread+0x140/0x184) [ 3.140314] dfa0: 00000000 00000000 00000000 00000000 [ 3.148587] [<c0146224>] (kthread) from [<c0100148>] (ret_from_fork+0x14/0x2c) [ 3.155910] [<c0146224>] (kthread) from [<c0100148>] (ret_from_fork+0x14/0x2c) [ 3.163457] Exception stack(0xc2641fb0 to 0xc2641ff8) [ 3.168564] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 3.176855] 1fa0: 00000000 00000000 00000000 00000000 [ 3.185108] Exception stack(0xc1c9ffb0 to 0xc1c9fff8) [ 3.190244] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 3.196929] ffa0: 00000000 00000000 00000000 00000000 [ 3.205373] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 3.213692] mmc2: SDHCI controller on 47810000.mmc [47810000.mmc] using External DMA [ 3.222108] omap_i2c 44e0b000.i2c: bus 0 rev0.12 at 100 kHz [ 3.228579] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 3.236893] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 3.244653] omap_i2c 4819c000.i2c: bus 2 rev0.12 at 100 kHz [ 3.250672] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 3.257382] mmc0: SDHCI controller on 48060000.mmc [48060000.mmc] using External DMA [ 3.270214] mmc1: SDHCI controller on 481d8000.mmc [481d8000.mmc] using External DMA [ 3.278034] omap_reset_deassert: timedout waiting for per:1 [ 3.284161] ti-sysc: probe of 54426000.target-module failed with error -110 [ 3.302504] omap_reset_deassert: timedout waiting for gfx:0 [ 3.308219] ti-sysc: probe of 5600fe00.target-module failed with error -110 [ 3.317177] mmc2: new high speed SDIO card at address 0001 [ 3.324516] input: gpio-keys as /devices/platform/gpio-keys/input/input0 [ 3.333478] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 3.363002] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 3.370205] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 3.385537] cfg80211: failed to load regulatory.db [ 3.392460] mmc0: new high speed SDHC card at address 1234 [ 3.403983] mmcblk0: mmc0:1234 SA08G 7.21 GiB [ 3.422091] Freeing unused kernel memory: 13312K [ 3.426998] mmcblk0: p1 [ 3.433939] mmc1: new high speed MMC card at address 0001 [ 3.440451] mmcblk1: mmc1:0001 MMC04G 3.66 GiB [ 3.445527] mmcblk1boot0: mmc1:0001 MMC04G partition 1 1.00 MiB [ 3.451801] Run /init as init process [ 3.468010] mmcblk1boot1: mmc1:0001 MMC04G partition 2 1.00 MiB [ 3.490162] mmcblk1rpmb: mmc1:0001 MMC04G partition 3 128 KiB, chardev (243:0) [ 3.512011] mmcblk1: p1 p2 p3 p4 [ 3.770244] udevd[159]: starting version 3.2.9 [ 3.791252] udevd[160]: starting eudev-3.2.9 [ 5.527487] device-mapper: verity: sha256 using implementation "sha256-generic" [ 6.028885] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null) INIT: version 2.96 booting [ 7.699611] EXT4-fs (mmcblk1p4): recovery complete [ 7.706368] EXT4-fs (mmcblk1p4): mounted filesystem with ordered data mode. Opts: (null) Starting udev [ 8.030946] udevd[234]: starting version 3.2.9 [ 8.220317] udevd[234]: specified user 'tss' unknown [ 8.225714] udevd[234]: specified group 'tss' unknown [ 8.237369] udevd[235]: starting eudev-3.2.9 [ 8.563942] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec [ 8.589156] omap_rtc 44e3e000.rtc: already running [ 8.640516] omap_rtc 44e3e000.rtc: registered as rtc0 [ 8.645641] omap_rtc 44e3e000.rtc: setting system clock to 2022-12-09T15:24:21 UTC (1670599461) [ 8.703308] wfx: loading out-of-tree module taints kernel. [ 8.744476] wfx: Silicon Labs 2.13.2 [ 9.567018] wfx-sdio mmc2:0001:1: started firmware 3.16.0 "WF200_ASIC_WFM_(Jenkins)_FW3.16.0" (API: 3.11, keyset: C0, caps: 0x00000000) [ 9.598088] omap-sham 53100000.sham: hw accel on OMAP rev 0.0 [ 9.633200] omap-aes 53501000.aes: OMAP AES hw accel rev: 0.1 [ 9.663661] omap-des 53701000.des: OMAP DES hw accel rev: 0.33 [ 9.686138] omap-sham 53100000.sham: will run requests pump with realtime priority [ 9.700153] omap-aes 53501000.aes: will run requests pump with realtime priority [ 9.722520] omap-des 53701000.des: will run requests pump with realtime priority [ 9.745186] wfx-sdio mmc2:0001:1: MAC address 0: 84:fd:27:9e:d2:93 [ 9.766211] wfx-sdio mmc2:0001:1: MAC address 1: 84:fd:27:9e:d2:94 [ 10.804500] usbcore: registered new interface driver usbfs [ 10.811207] usbcore: registered new interface driver hub [ 10.817582] usbcore: registered new device driver usb [ 10.862657] xhci-hcd xhci-hcd.4.auto: xHCI Host Controller [ 10.868354] xhci-hcd xhci-hcd.4.auto: new USB bus registered, assigned bus number 1 [ 10.876884] xhci-hcd xhci-hcd.4.auto: hcc params 0x0238f06d hci version 0x100 quirks 0x0000002002010010 [ 10.892274] xhci-hcd xhci-hcd.4.auto: irq 100, io mem 0x483d0000 [ 10.898730] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10 [ 10.907112] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 10.914431] usb usb1: Product: xHCI Host Controller [ 10.919333] usb usb1: Manufacturer: Linux 5.10.153-g3eee621d16 xhci-hcd [ 10.926517] usb usb1: SerialNumber: xhci-hcd.4.auto [ 10.933101] hub 1-0:1.0: USB hub found [ 10.936944] hub 1-0:1.0: 1 port detected [ 10.944426] xhci-hcd xhci-hcd.4.auto: xHCI Host Controller [ 10.950091] xhci-hcd xhci-hcd.4.auto: new USB bus registered, assigned bus number 2 [ 10.957808] xhci-hcd xhci-hcd.4.auto: Host supports USB 3.0 SuperSpeed [ 10.964540] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 10.972937] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10 [ 10.981296] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 10.988554] usb usb2: Product: xHCI Host Controller [ 10.993467] usb usb2: Manufacturer: Linux 5.10.153-g3eee621d16 xhci-hcd [ 11.000753] usb usb2: SerialNumber: xhci-hcd.4.auto [ 11.007153] hub 2-0:1.0: USB hub found [ 11.011074] hub 2-0:1.0: 1 port detected [ 11.106896] EXT4-fs (dm-0): re-mounted. Opts: (null) INIT: Entering runlevel: 5 Configuring network interfaces... [ 13.099698] cpsw-switch 4a100000.switch: starting ndev. mode: dual_mac [ 13.118873] Generic PHY 4a101000.mdio:02: attached PHY driver [Generic PHY] (mii_bus:phy_addr=4a101000.mdio:02, irq=POLL) [ 13.133287] cpsw-switch 4a100000.switch eth0: Link is Up - 100Mbps/Full - flow control off Configuration file: /etc/hostapd.conf Using interface wlan1 with hwaddr 84:fd:27:9e:d2:94 and ssid "xxx" WPS: Converting push_button to virtual_push_button for WPS 2.0 compliance [ 13.864347] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 14.010232] cryptd: max_cpu_qlen set to 1000 wlan1: interface state UNINITIALIZED->ENABLED wlan1: AP-ENABLED Running hostapd done. Starting system message bus: dbus. Starting random number generator daemon. Starting OpenBSD Secure Shell server: sshd done. Starting rpcbind daemon...done. Starting ntpd: done Starting syslogd/klogd: done Starting firewall Switching on green LED blinking INIT: Switching to runlevel: 6 INIT: Sending processes configured via /etc/inittab the TERM signal Stopping OpenBSD Secure Shell server: sshd. Stopping system message bus: dbus. Stopping ntpd: done Stopping syslogd/klogd: done Stopping random number generator daemon. Unmounting remote filesystems... Stopping firewall Stopping rpcbind daemon... done. swupdate is not running; none killed. Deconfiguring network interfaces... [ 37.500582] cpsw-switch 4a100000.switch eth0: Link is Down done. LED blinking not active Sending all processes the TERM signal... Sending all processes the KILL signal... Deactivating swap... Unmounting local filesystems... [ 42.909098] EXT4-fs (dm-0): re-mounted. Opts: (null) Rebooting... [ 53.599752] mmc1: Timeout waiting for hardware cmd interrupt. [ 53.605564] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 53.612051] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 53.618534] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 53.625016] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 53.631497] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 53.637977] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 53.644457] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 53.650937] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 53.657418] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 53.663897] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 53.670377] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 53.676857] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 53.683336] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 53.689815] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 53.696293] mmc1: sdhci: Host ctl2: 0x00000000 [ 53.700764] mmc1: sdhci: ============================================ [ 53.736780] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 53.774487] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 63.839751] mmc1: Timeout waiting for hardware cmd interrupt. [ 63.845552] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 63.852036] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 63.858518] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 63.865000] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 63.871480] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 63.877959] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 63.884438] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 63.890918] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 63.897397] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 63.903877] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 63.910357] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 63.916835] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 63.923314] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 63.929793] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 63.936270] mmc1: sdhci: Host ctl2: 0x00000000 [ 63.940741] mmc1: sdhci: ============================================ [ 63.976489] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 64.014189] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 74.079759] mmc1: Timeout waiting for hardware cmd interrupt. [ 74.085553] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 74.092039] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 74.098521] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 74.105002] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 74.111483] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 74.117963] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 74.124443] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 74.130923] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 74.137403] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 74.143882] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 74.150362] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 74.156841] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 74.163320] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 74.169799] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 74.176276] mmc1: sdhci: Host ctl2: 0x00000000 [ 74.180747] mmc1: sdhci: ============================================ [ 74.216570] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 74.254271] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 84.329727] mmc1: Timeout waiting for hardware cmd interrupt. [ 84.335520] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== [ 84.342003] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00003101 [ 84.348486] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 [ 84.354967] mmc1: sdhci: Argument: 0x00010000 | Trn mode: 0x00000000 [ 84.361448] mmc1: sdhci: Present: 0x01f70000 | Host ctl: 0x00000000 [ 84.367927] mmc1: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 [ 84.374406] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x00000000 [ 84.380884] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 [ 84.387364] mmc1: sdhci: Int enab: 0x007f0003 | Sig enab: 0x007f0003 [ 84.393843] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 84.400322] mmc1: sdhci: Caps: 0x05e10080 | Caps_1: 0x00000000 [ 84.406801] mmc1: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000 [ 84.413280] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 [ 84.419758] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 84.426235] mmc1: sdhci: Host ctl2: 0x00000000 [ 84.430706] mmc1: sdhci: ============================================ [ 84.466485] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 84.504186] sdhci-omap 481d8000.mmc: Timeout waiting on controller reset in sdhci_omap_reset [ 84.512837] mmc1: card 0001 removed
你(们)好
当仅在关机/重新启动期间发现问题时、我们会将看门狗计时器作为一种权变措施解决方案。 当 SD 卡安装期间也发生这种情况时、它被丢弃。 系统和其他应用程序在此时仍在工作(不包括对 SD 卡的访问)。 问题出在您尝试重新启动系统时。 每个运行的 reboot 命令只会将另一个重新引导进程添加到正在运行的进程列表中。 如果在所有应用程序运行时使用看门狗重新启动系统、则存在文件系统或数据库损坏的风险。
尊敬的 Andreas、您好、Bin Liu
我仍在调查此问题、但从硬件方面来看、 在 TI 原理图中的"ARM MPU AM4378通用 EV"板上、我看到 eMMC 上的复位控制引脚通过 Sitara CPU 的端口 B3完成、 端口 B3上的此信号是否通过 sdhci-OMAP 驱动程序进行控制？
另外、关于下面的主题、我假设我们必须在 Sitara 的引脚复位中为 eMMC 分配一个复位引脚、如果我错了、请纠正我的问题。
你(们)好
AM437x HS EVM 上的重新引导测试已得出结果。 sdhci-OMAP 的超时问题未发生、但测试失败、OMAP-i2c (与 PMIC 通信)上出现超时。 器件已停止、终端已被阻止。 您认为这两件事可以通过某种方式连接吗？ 与此同时、我们将继续研究电路板的硬件方面。
[53265.063613] tps65218 0-0024: Write for reg Oxla failed [53265.068818] cpu cpu0: _set_opp_voltage: failed to set voltage (931000 950000 969000 mV): -110 [53265.077523] cpufreq: _target_index: Failed to change cpu frequency: -110 [53268.053590] omap_i2c 44e0b000.i2c: controller timed out [53270.083536] omap_i2c 44e0b000.i2c: controller timed out [53271.053612] tps65218 0-0024: Write for reg 0x17 failed [53273.053592] omap_i2c 44e0b000.i2c: controller timed out [53273.083544] tps65218 0-0024: Write for reg Oxla failed [53276.053590] omap_i2c 44e0b000.i2c: controller timed out [53278.083534] omap_i2c 44e0b000.i2c: controller timed out [53279.053609] tps65218 0-0024: Write for reg 0x17 failed [53281.053596] omap_i2c 44e0b000.i2c: controller timed out [53281.083546] tps65218 0-0024: Write for reg Oxla failed [53281.088744] cpu cpu0: _set_opp_voltage: failed to set voltage (931000 950000 969000 mV): -110 [53281.097442] cpufreq: _target_index: Failed to change cpu frequency: -110 [53284.053597] omap_i2c 44e0b000.i2c: controller timed out [53286.083533] omap_i2c 44e0b000.i2c: controller timed out [53287.053611] tps65218 0-0024: Write for reg 0x17 failed [53289.053600] omap_i2c 44e0b000.i2c: controller timed out [53289.083549] tps65218 0-0024: Write for reg Oxla failed [53292.053600] omap_i2c 44e0b000.i2c: controller timed out [53294.083531] omap_i2c 44e0b000.i2c: controller timed out [53295.053614] tps65218 0-0024: Write for reg 0x17 failed
大家好。
我正在同一个团队中与 Pawel 和 Damian 合作、并调查此问题。 我发现发生了超时、因为没有对 CMD13 (MMC_SEND_STATUS)的响应。 增加超时和重试次数不会改变任何效果。 此外、超时仅在暂停 eMMC 后发生-这就是它无法获得响应的原因。 在深入分析之后、我发现 drivers/MMC/core/mmc_ops.c 中由__MMC_SEND_STATUS()方法发送的 CMD13是从 drivers/MMC/core/core.c 中的_MMC_DETITY_CARD_removed()方法执行的
这不应该发生、因为我们的 eMMC 是不可拆卸的。 手动将 MMC_CAP_NONMODETABLE 标志设置到 mmc1可能会解决我们的问题。 我没有注意到一次超时、因为我循环重新启动了将近一天。
在我们的 DTS 中、我们使用的是`ti、不可移除`器件属性、 与 AM437X-gp-evm.dts 中的属性相同、我发现驱动程序无法正确读取该属性。 但是，`不可移动的`属性工作正常。 我们应该使用哪一个？ `、不可拆卸的`是否已如以下补丁 中所述被实际弃用：https://patchwork.kernel.org/project/linux-omap/patch/20210921110029.21944-5-tony@atomide.com/ ？
您好、Dawid、
很好的收获
但您似乎是指旧版 AM437X-gp-evm.dts： https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/arch/arm/boot/dts/am437x-gp-evm.dts、即 v4.4。
长话短说，在项目中使用的内核 v5.10中，您应该使用“不可移动”。
完整案例、在旧内核版本中、AM437x 使用 MMC 驱动程序 omap_hsmmc.c (兼容 DTS ="ti、omap4-hsmmc")、该驱动程序使用"ti、不可移动"作为不可移动器件。 2020年、AM437x 内核更新为使用 MMC 驱动程序 sdhci-omap.c (compatible ="ti、am437-sdhci")、该驱动程序使用"不可移动"。
大家好、Bin 和 Dawid
今天，我重新获得了论坛回复功能：)
@Dawid 感谢您的调查和验证。 通过查看当前测试结果、问题似乎得到了解决。
感谢您的澄清@。 我们从较旧的项目复制了 ti、不可移动标志、然后在 Linux 内核5.10的文档中对其进行了验证、但在5.10中未使用您所写的 ti-omap-hsmmc.txt。 与 AM437X-gp-evm.dts 相比 、我们查看了主分支、但没有注意到此处使用了 Linux 内核4.4。 在 meta-ti 的 linux-ti-staging 中使用的 ti-linux-5.10.y 分支上、不可移动标志被正确使用。
关于 i2c 错误、将调速器更改为性能后、AM437x EVM 也会在经过几小时测试后重启时停止。 但我们的电路板上不会出现该问题。 我建议在我们板上观察到的情况下、我将创建一个单独的主题。 以下是故障模式下的启动/关闭日志：
U-Boot SPL 2021.10-rc2-gb9cb74a5aa (Aug 27 2021 - 12:33:02 +0000) Trying to boot from MMC1 Authentication passed Authentication passed U-Boot 2021.10-rc2-gb9cb74a5aa (Aug 27 2021 - 12:33:02 +0000)SCU200 CPU : AM437X-HS rev 1.2 Model: TI AM437x GP EVM DRAM: 2 GiB PMIC: TPS65218 MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 Loading Environment from FAT... *** Error - No Valid Environment Area found *** Warning - bad env area, using default environment Loading Environment from nowhere... OK In: serial@44e09000 Out: serial@44e09000 Err: serial@44e09000 Net: eth2: ethernet@4a100000 Hit any key to stop autoboot: 0 4559360 bytes read in 245 ms (17.7 MiB/s) 78978 bytes read in 8 ms (9.4 MiB/s) Kernel image @ 0x82000000 [ 0x000000 - 0x459200 ] ## Flattened Device Tree blob at 88000000 Booting using the fdt blob at 0x88000000 Loading Device Tree to f9f51000, end f9f67481 ... OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 5.10.158scu200-g14d010266b (oe-user@oe-host) (arm-poky-linux-gnueabi-gcc (GCC) 9.5.0, GNU ld (GNU Binutils) 2.34.0.20200910) #1 PREEMPT Sat Dec 10 00:44:06 UTC 2022 [ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt: Machine model: TI AM437x GP EVM [ 0.000000] Memory policy: Data cache writeback [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 48 MiB at 0xfcc00000 [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000080000000-0x00000000afffffff] [ 0.000000] HighMem [mem 0x00000000b0000000-0x00000000ffffefff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000bdafffff] [ 0.000000] node 0: [mem 0x00000000bdb00000-0x00000000bfafffff] [ 0.000000] node 0: [mem 0x00000000bfb00000-0x00000000ffffefff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000ffffefff] [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] AM437x ES1.2 (neon) [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 522559 [ 0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/mmcblk0p2 rootwait rw [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 1980384K/2097148K available (9216K kernel code, 667K rwdata, 2976K rodata, 1024K init, 275K bss, 67612K reserved, 49152K cma-reserved, 1228716K highmem) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: RCU event tracing is enabled. [ 0.000000] Trampoline variant of Tasks RCU enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] L2C: platform modifies aux control register: 0x0e030000 -> 0x3e430000 [ 0.000000] L2C: DT/platform modifies aux control register: 0x0e030000 -> 0x3e430000 [ 0.000000] L2C-310 enabling early BRESP for Cortex-A9 [ 0.000000] OMAP L2C310: ROM does not support power control setting [ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled [ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB [ 0.000000] L2C-310: CACHE_ID 0x410000c9, AUX_CTRL 0x4e430000 [ 0.000000] TI gptimer clocksource: always-on /ocp@44000000/interconnect@44c00000/segment@200000/target-module@31000 [ 0.000010] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns [ 0.000027] clocksource: dmtimer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns [ 0.000159] OMAP clocksource: 32k_counter at 32768 Hz [ 0.000176] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns [ 0.000477] TI gptimer clockevent: 24000000 Hz at /ocp@44000000/interconnect@48000000/segment@0/target-module@40000 [ 0.001799] Console: colour dummy device 80x30 [ 0.001868] Calibrating delay loop... 1594.16 BogoMIPS (lpj=7970816) [ 0.087538] pid_max: default: 32768 minimum: 301 [ 0.087766] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) [ 0.087792] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear) [ 0.088803] CPU: Testing write buffer coherency: ok [ 0.088874] CPU0: Spectre v2: using BPIALL workaround [ 0.089959] Setting up static identity map for 0x80100000 - 0x80100060 [ 0.090137] rcu: Hierarchical SRCU implementation. [ 0.090264] EFI services will not be available. [ 0.091009] devtmpfs: initialized [ 0.105056] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4 [ 0.105348] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.105375] futex hash table entries: 256 (order: -1, 3072 bytes, linear) [ 0.109214] pinctrl core: initialized pinctrl subsystem [ 0.110181] DMI not present or invalid. [ 0.111018] NET: Registered protocol family 16 [ 0.112885] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.122080] thermal_sys: Registered thermal governor 'fair_share' [ 0.122092] thermal_sys: Registered thermal governor 'bang_bang' [ 0.122109] thermal_sys: Registered thermal governor 'step_wise' [ 0.122116] thermal_sys: Registered thermal governor 'user_space' [ 0.122615] cpuidle: using governor ladder [ 0.122655] cpuidle: using governor menu [ 1.215913] No ATAGs? [ 1.215949] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers. [ 1.215959] hw-breakpoint: maximum watchpoint size is 4 bytes. [ 1.248181] iommu: Default domain type: Translated [ 1.250844] SCSI subsystem initialized [ 1.251535] pps_core: LinuxPPS API ver. 1 registered [ 1.251550] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 1.251576] PTP clock support registered [ 1.251640] EDAC MC: Ver: 3.0.0 [ 1.254295] clocksource: Switched to clocksource dmtimer [ 1.262691] NET: Registered protocol family 2 [ 1.263118] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.264632] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) [ 1.264692] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 1.264770] TCP bind hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 1.264863] TCP: Hash tables configured (established 8192 bind 8192) [ 1.265052] UDP hash table entries: 512 (order: 1, 8192 bytes, linear) [ 1.265085] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes, linear) [ 1.265252] NET: Registered protocol family 1 [ 1.265926] RPC: Registered named UNIX socket transport module. [ 1.265944] RPC: Registered udp transport module. [ 1.265951] RPC: Registered tcp transport module. [ 1.265958] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 1.267998] Initialise system trusted keyrings [ 1.268338] workingset: timestamp_bits=14 max_order=19 bucket_order=5 [ 1.272353] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 1.273274] NFS: Registering the id_resolver key type [ 1.273359] Key type id_resolver registered [ 1.273368] Key type id_legacy registered [ 1.273456] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 1.273478] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 1.273517] ntfs: driver 2.1.32 [Flags: R/O]. [ 1.274470] Key type asymmetric registered [ 1.274492] Asymmetric key parser 'x509' registered [ 1.274555] bounce: pool size: 64 pages [ 1.274621] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244) [ 1.274634] io scheduler mq-deadline registered [ 1.274643] io scheduler kyber registered [ 1.581493] ti-sysc: probe of 44e31000.target-module failed with error -16 [ 1.650245] ti-sysc: probe of 48040000.target-module failed with error -16 [ 1.665532] OMAP GPIO hardware version 0.1 [ 1.705234] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400 [ 1.977770] debugfs: Directory '49000000.dma' with parent 'dmaengine' already present! [ 1.977810] edma 49000000.dma: TI EDMA DMA engine driver [ 2.024224] pinctrl-single 44e10800.pinmux: 199 pins, size 796 [ 2.027645] pwm-backlight backlight: supply power not found, using dummy regulator [ 2.077644] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled [ 2.081798] omap8250 44e09000.serial: No clock speed specified: using default: 48000000 [ 2.082740] printk: console [ttyS0] disabled [ 2.082922] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 56, base_baud = 3000000) is a 8250 [ 2.804113] printk: console [ttyS0] enabled [ 2.809460] omap8250 481a6000.serial: No clock speed specified: using default: 48000000 [ 2.818601] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 70, base_baud = 3000000) is a 8250 [ 2.830803] omap_rng 48310000.rng: Random Number Generator ver. 20 [ 2.837510] random: crng init done [ 2.842922] omapdss_dss 4832a000.dss: supply vdda_video not found, using dummy regulator [ 2.858565] panel-simple display: supply power not found, using dummy regulator [ 2.880775] loop: module loaded [ 2.954317] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000 [ 2.967930] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver unknown [ 2.976802] cpsw-switch 4a100000.switch: initialized cpsw ale version 1.4 [ 2.983632] cpsw-switch 4a100000.switch: ALE Table size 1024 [ 2.989530] cpsw-switch 4a100000.switch: cpts: overflow check period 500 (jiffies) [ 2.997203] cpsw-switch 4a100000.switch: CPTS: ref_clk_freq:250000000 calc_mult:2147483648 calc_shift:29 error:0 nsec/sec [ 3.008306] cpsw-switch 4a100000.switch: Detected MACID = 50:65:83:d5:c1:c9 [ 3.016240] cpsw-switch 4a100000.switch: initialized (regs 0x4a100000, pool size 256) hw_ver:0019010F 1.15 (0) [ 3.027600] i2c /dev entries driver [ 3.033582] device-mapper: ioctl: 4.43.0-ioctl (2020-10-01) initialised: dm-devel@redhat.com [ 3.043893] cpuidle: enable-method property 'ti,am4372' found operations [ 3.051628] sdhci: Secure Digital Host Controller Interface driver [ 3.057895] sdhci: Copyright(c) Pierre Ossman [ 3.063650] sdhci-pltfm: SDHCI platform and OF driver helper [ 3.072127] sdhci-omap 481d8000.mmc: supply vqmmc not found, using dummy regulator [ 3.083917] NET: Registered protocol family 10 [ 3.089455] sdhci-omap 47810000.mmc: supply vqmmc not found, using dummy regulator [ 3.106001] Segment Routing with IPv6 [ 3.109830] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 3.117177] NET: Registered protocol family 17 [ 3.122075] Key type dns_resolver registered [ 3.126491] mmc0: SDHCI controller on 481d8000.mmc [481d8000.mmc] using External DMA [ 3.135405] omap_voltage_late_init: Voltage driver support not added [ 3.142963] Loading compiled-in X.509 certificates [ 3.164696] gpio-119 (SelEMMCorNAND): hogged as output/high [ 3.206022] tps65218-pwrbutton: Failed to locate of_node [id: -2] [ 3.212474] tps65218-gpio: Failed to locate of_node [id: -2] [ 3.223325] mmc0: new high speed MMC card at address 0001 [ 3.230077] mmcblk0: mmc0:0001 MMC04G 3.60 GiB [ 3.235985] mmcblk0boot0: mmc0:0001 MMC04G partition 1 16.0 MiB [ 3.242623] mmcblk0boot1: mmc0:0001 MMC04G partition 2 16.0 MiB [ 3.248969] mmcblk0rpmb: mmc0:0001 MMC04G partition 3 128 KiB, chardev (243:0) [ 3.260471] mmcblk0: p1 p2 [ 3.264523] omap_i2c 44e0b000.i2c: bus 0 rev0.12 at 100 kHz [ 3.273878] omap_i2c 4802a000.i2c: bus 1 rev0.12 at 100 kHz [ 3.280379] gpio-136 (SelLCDorHDMI): hogged as output/high [ 3.299223] omap_reset_deassert: timedout waiting for gfx:0 [ 3.304915] ti-sysc: probe of 5600fe00.target-module failed with error -110 [ 3.312745] omapdss_dss 4832a000.dss: supply vdda_video not found, using dummy regulator [ 3.321205] DSS: OMAP DSS rev 2.0 [ 3.327061] omapdss_dss 4832a000.dss: bound 4832a400.dispc (ops dispc_component_ops) [ 3.335404] omapdrm omapdrm.0: DMM not available, disable DMM support [ 3.409350] Console: switching to colour frame buffer device 100x30 [ 3.432419] omapdrm omapdrm.0: [drm] fb0: omapdrmdrmfb frame buffer device [ 3.440120] [drm] Initialized omapdrm 1.0.0 20110917 for omapdrm.0 on minor 0 [ 3.450106] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22) [ 3.460446] sdhci-omap 47810000.mmc: supply vqmmc not found, using dummy regulator [ 3.472484] sdhci-omap 48060000.mmc: Got CD GPIO [ 3.477975] sdhci-omap 48060000.mmc: supply vqmmc not found, using dummy regulator [ 3.502955] mmc2: SDHCI controller on 47810000.mmc [47810000.mmc] using External DMA [ 3.511127] mmc1: SDHCI controller on 48060000.mmc [48060000.mmc] using External DMA [ 3.551598] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null) [ 3.559995] mmc1: new high speed SDHC card at address 59b4 [ 3.565729] VFS: Mounted root (ext4 filesystem) on device 179:2. [ 3.572851] mmcblk1: mmc1:59b4 USDU1 7.51 GiB [ 3.579717] devtmpfs: mounted [ 3.582942] mmcblk1: p1 p2 [ 3.588117] Freeing unused kernel memory: 1024K [ 3.614552] Run /sbin/init as init process INIT: version 2.96 booting Starting udev [ 4.328442] udevd[102]: starting version 3.2.9 [ 4.435884] udevd[103]: starting eudev-3.2.9 [ 4.819742] omap_rtc 44e3e000.rtc: already running [ 4.844621] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec [ 4.887734] omap_rtc 44e3e000.rtc: registered as rtc0 [ 4.892865] omap_rtc 44e3e000.rtc: setting system clock to 2018-03-13T02:54:23 UTC (1520909663) [ 4.971251] omap_i2c 4802a000.i2c: Arbitration lost [ 5.550290] omap-sham 53100000.sham: hw accel on OMAP rev 0.0 [ 5.557092] omap_aes_driver: Unknown symbol aes_expandkey (err -2) [ 5.563541] omap_aes_driver: Unknown symbol aes_encrypt (err -2) [ 5.581962] omap-des 53701000.des: OMAP DES hw accel rev: 0.33 [ 5.631772] omap-sham 53100000.sham: will run requests pump with realtime priority [ 5.643265] omap-des 53701000.des: will run requests pump with realtime priority [ 5.666939] input: matrix_keypad0 as /devices/platform/matrix_keypad0/input/input1 [ 7.064295] sched: RT throttling activated [ 7.068848] pixcir_ts 1-005c: pixcir_int_enable: can't write reg 52 : -11 [ 7.090371] pixcir_ts 1-005c: Failed to disable interrupt generation: -11 [ 20.104057] OF: graph: no port node found in /ocp@44000000/interconnect@48000000/segment@300000/target-module@a8000/ocp2scp@0/phy@8000 [ 67.097558] udevd[103]: worker [109] /devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@0/4802a000.target-module/4802a000.i2c/i2c-1/1-005c is taking a long time [ 80.074369] udevd[103]: worker [108] /devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@300000/48380000.target-module/48380000.omap_dwc3/48390000.usb is taking a long time [ 80.092594] udevd[103]: worker [114] /devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@300000/483c0000.target-module/483c0000.omap_dwc3/483d0000.usb is taking a long time [ 127.085122] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) INIT: Entering runlevel: 5 Configuring network interfaces... ip: can't find device 'wlan1' ip: SIOCGIFFLAGS: No such device [ 148.072429] cpsw-switch 4a100000.switch: starting ndev. mode: dual_mac [ 148.089805] Generic PHY 4a101000.mdio:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL) Starting rpcbind daemon...done. Starting syslogd/klogd: done Starting programming Programming done. INIT: Switching to runlevel: 6 INIT: Sending processes configured via /etc/inittab the TERM signal Stopping syslogd/klogd: done Unmounting remote filesystems... Stopping nanotap_server_bin No process in pidfile '/var/run/nanotap_server_bin.pid' found running; none killed. Stopping dpcmtpm20 No process in pidfile '/var/run/dpcmtpm20.pid' found running; none killed. Stopping rpcbind daemon... done. Deconfiguring network interfaces... ifdown: interface wlan1 not configured done. Sending all processes the TERM signal... Sending all processes the KILL signal... Deactivating swap... Unmounting local filesystems... [ 173.054480] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) Rebooting...
特别是，请查看以下行，您可以在其中看到系统在启动过程中停止了一段时间，然后在重新启动过程中出现故障：
[ 7.090371] pixcir_ts 1-005c: Failed to disable interrupt generation: -11 [ 20.104057] OF: graph: no port node found in /ocp@44000000/interconnect@48000000/segment@300000/target-module@a8000/ocp2scp@0/phy@8000 [ 67.097558] udevd[103]: worker [109] /devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@0/4802a000.target-module/4802a000.i2c/i2c-1/1-005c is taking a long time [ 80.074369] udevd[103]: worker [108] /devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@300000/48380000.target-module/48380000.omap_dwc3/48390000.usb is taking a long time [ 80.092594] udevd[103]: worker [114] /devices/platform/44000000.ocp/48000000.interconnect/48000000.interconnect:segment@300000/483c0000.target-module/483c0000.omap_dwc3/483d0000.usb is taking a long time [ 127.085122] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) INIT: Entering runlevel: 5
在正常模式下、未观察到：
[ 7.456783] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) INIT: Entering runlevel: 5 Configuring network interfaces... ip: can't find device 'wlan1' ip: SIOCGIFFLAGS: No such device [ 9.031267] cpsw-switch 4a100000.switch: starting ndev. mode: dual_mac [ 9.048830] Generic PHY 4a101000.mdio:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL) Starting rpcbind daemon...done.
大家好、Pawel、
[引用 userid="133075" URL"~/support/processors-group/processors/f/processors-forum/1167358/am4372-sdhci-omap-timout-during-reboot/4471666 #4471666">关于 i2c 错误、将调速器更改为性能后、AM437x EVM 也会在经过几个小时的测试后重启时停止。 但我们的电路板上不会出现该问题。 我建议在我们的董事会上观察到这一问题时、我将创建一个单独的主题。[/QUERPLET]感谢您报告此问题。 是的、如果电路板上出现问题、请创建新的 e2e 线程。