[参考译文] AM6442：AM64x：获取错误&quot；ti-sci-clk 44043000.system-controller：clock-controller：在引导期间、dev=62、clk=3、ret=–19&quot 时 Recalc-rate 失败

您好 Bryan、

感谢您的举报。 这看起来像一个错误。 请给我一天左右的时间、确认我们要将 ICSSG 器件 ID 用于 MDIO 时钟、而不是其他用途。 如果星期四没有回复、请 ping 通该线程。

此致、

Nick

你好、Nick。

感谢您的更新。 还有新消息吗？

我很好奇为什么“&k3_CLKS 81 0“在末尾有一个零而不是 21、那么我又不是真的确定它是如何使用的。

根据时钟文档、器件树中不会出现“DEV_PRU_ICSSG0_PR1_MDIO_MDCLK_O"。“。

Bryan

您好 Bryan、

我不清楚有关 MDIO 时钟信号如何引脚的文档：

我在 AM64x 时钟树工具中看不到信号路径、也没有在 TRM 中看到任何明显的时钟映射。 我将尝试与 Linux 开发团队聊天、以便从他们这边获取更多信息。 信息可能是明天来的、也可能是下周中下旬我下班后回来的。

有关进入 PRU 内核的时钟（以及如何更改）的讨论、请参阅此常见问题解答：
【常见问题解答】PRU_ICSSG：如何在 Linux 中查看和设置 PRU 内核频率？

此致、

Nick

您好 Bryan、

您使用的是哪个 SDK 版本？ 我没有观察到 Linux SDK 11.0 未修改启动时的输出：

root@am64xx-evm:~# uname -a
Linux am64xx-evm 6.12.17-g968baaea3a83 #1 SMP PREEMPT_RT Thu Apr 17 13:29:56 CDT 2025 aarch64 GNU/Linux

root@am64xx-evm:~# dmesg | grep 44043000
[    1.216966] ti-sci 44043000.system-controller: ABI: 4.0 (firmware rev 0x000b '11.0.7--v11.00.07 (Fancy Rat)')

// link up on ICSSG port
root@am64xx-evm:~# dmesg | grep pru
[   12.028765] remoteproc remoteproc5: 3000a000.txpru is available
[   12.032450] remoteproc remoteproc6: 3000c000.txpru is available
[   12.068392] remoteproc remoteproc7: 3008a000.txpru is available
[   12.082006] remoteproc remoteproc8: 3008c000.txpru is available
[   12.671273] remoteproc remoteproc9: 30034000.pru is available
[   12.707230] remoteproc remoteproc11: 30038000.pru is available
[   12.716045] remoteproc remoteproc13: 300b4000.pru is available
[   12.742118] remoteproc remoteproc15: 300b8000.pru is available
[   12.851016] icssg-prueth icssg1-eth: TI PRU ethernet driver initialized: single EMAC mode
[   14.081312] remoteproc remoteproc13: powering up 300b4000.pru
[   14.103202] remoteproc remoteproc13: Booting fw image ti-pruss/am65x-sr2-pru0-prueth-fw.elf, size 39636
[   14.103283] remoteproc remoteproc13: remote processor 300b4000.pru is now up
[   14.104912] remoteproc remoteproc14: Booting fw image ti-pruss/am65x-sr2-rtu0-prueth-fw.elf, size 30444
[   14.105020] remoteproc remoteproc7: powering up 3008a000.txpru
[   14.116711] remoteproc remoteproc7: Booting fw image ti-pruss/am65x-sr2-txpru0-prueth-fw.elf, size 39188
[   14.116781] remoteproc remoteproc7: remote processor 3008a000.txpru is now up
[   14.116830] remoteproc remoteproc15: powering up 300b8000.pru
[   14.125489] remoteproc remoteproc15: Booting fw image ti-pruss/am65x-sr2-pru1-prueth-fw.elf, size 39796
[   14.125668] remoteproc remoteproc15: remote processor 300b8000.pru is now up
[   14.131493] remoteproc remoteproc16: Booting fw image ti-pruss/am65x-sr2-rtu1-prueth-fw.elf, size 29680
[   14.133194] remoteproc remoteproc8: powering up 3008c000.txpru
[   14.135945] remoteproc remoteproc8: Booting fw image ti-pruss/am65x-sr2-txpru1-prueth-fw.elf, size 37676
[   14.136108] remoteproc remoteproc8: remote processor 3008c000.txpru is now up
[   17.254045] icssg-prueth icssg1-eth eth2: Link is Up - 1Gbps/Full - flow control off

root@am64xx-evm:~# dmesg | grep recalc
root@am64xx-evm:~# dmesg | grep mdio
[    1.728202] davinci_mdio 8000f00.mdio: Configuring MDIO in manual mode
[    1.761607] davinci_mdio 8000f00.mdio: davinci mdio revision 9.7, bus freq 1000000
[    1.765055] davinci_mdio 8000f00.mdio: phy[0]: device 8000f00.mdio:00, driver TI DP83867
[   11.616822] davinci_mdio 300b2400.mdio: Configuring MDIO in manual mode
[   11.649681] davinci_mdio 300b2400.mdio: davinci mdio revision 1.7, bus freq 1000000
[   11.929040] davinci_mdio 300b2400.mdio: phy[15]: device 300b2400.mdio:0f, driver TI DP83869
[   12.840019] TI DP83869 300b2400.mdio:0f: attached PHY driver (mii_bus:phy_addr=300b2400.mdio:0f, irq=POLL)
[   13.011449] am65-cpsw-nuss 8000000.ethernet eth0: PHY [8000f00.mdio:00] driver [TI DP83867] (irq=POLL)
[   13.063324] am65-cpsw-nuss 8000000.ethernet eth1: PHY [mdio_mux-0.1:03] driver [TI DP83869] (irq=POLL)

你好、Nick。

已商定对于 ICSSG MDIO 的时钟源没有太多信息。 AM65x 使用“vclk"输入“输入（顺便说一句，错误来自哪里 — DEV ID 62、时钟 ID 3 位于 AM65x 器件树中，并根据文档进行更正）。

我不是直接使用 SDK（试图使所有 Yocto 工程都保持相同的工作流程）、而是在 SDK 11 上有效地使用了标记 11.02.03（我想这就是它的样子）。

Bryan

Nick。

此处的输出也与您上面给出的命令相匹配。

Bryan

root@dev-machine:~# uname -a
Linux dev-machine 6.12.49-ti-g9b2678be3a92-dirty #1 SMP PREEMPT Wed Oct 29 18:36:53 UTC 2025 aarch64 GNU/Linux
root@dev-machine:~# 
root@dev-machine:~# dmesg | grep 44043000
[    0.256036] ti-sci 44043000.system-controller: ABI: 4.0 (firmware rev 0x000b '11.2.0--v11.02.00 (Fancy Rat)')
[    0.375515] ti-sci-clk 44043000.system-controller:clock-controller: recalc-rate failed for dev=62, clk=3, ret=-19
[    2.329905] ti-sci-clk 44043000.system-controller:clock-controller: is_prepared failed for dev=62, clk=3, ret=-19
root@dev-machine:~# 
root@dev-machine:~# 
root@dev-machine:~# dmesg | grep pru
[    3.609341] remoteproc remoteproc0: 3000a000.txpru is available
[    3.624527] remoteproc remoteproc1: 3000c000.txpru is available
[    3.651807] remoteproc remoteproc2: 3008a000.txpru is available
[    3.674512] remoteproc remoteproc3: 3008c000.txpru is available
[    5.363853] remoteproc remoteproc4: 30034000.pru is available
[    5.412060] remoteproc remoteproc6: 30038000.pru is available
[    5.436192] remoteproc remoteproc8: 300b8000.pru is available
[    5.474752] icssg-prueth icssg0-ethernet: TI PRU ethernet driver initialized: single EMAC mode
[    5.490770] remoteproc remoteproc10: 300b4000.pru is available
[    5.810332] icssg-prueth icssg0-ethernet J5: renamed from eth0
[    5.927996] remoteproc remoteproc4: powering up 30034000.pru
[    5.960239] remoteproc remoteproc4: Booting fw image ti-pruss/am64x-sr2-pru0-prueth-fw.elf, size 39724
[    5.975617] remoteproc remoteproc4: remote processor 30034000.pru is now up
[    5.990894] remoteproc remoteproc5: Booting fw image ti-pruss/am64x-sr2-rtu0-prueth-fw.elf, size 32052
[    6.007532] remoteproc remoteproc0: powering up 3000a000.txpru
[    6.019897] remoteproc remoteproc0: Booting fw image ti-pruss/am64x-sr2-txpru0-prueth-fw.elf, size 39272
[    6.029563] remoteproc remoteproc0: remote processor 3000a000.txpru is now up
[    6.043275] remoteproc remoteproc6: powering up 30038000.pru
[    6.050451] remoteproc remoteproc6: Booting fw image ti-pruss/am64x-sr2-pru1-prueth-fw.elf, size 39884
[    6.065489] remoteproc remoteproc6: remote processor 30038000.pru is now up
[    6.079541] remoteproc remoteproc7: Booting fw image ti-pruss/am64x-sr2-rtu1-prueth-fw.elf, size 31284
[    6.095916] remoteproc remoteproc1: powering up 3000c000.txpru
[    6.103205] remoteproc remoteproc1: Booting fw image ti-pruss/am64x-sr2-txpru1-prueth-fw.elf, size 37760
[    6.112860] remoteproc remoteproc1: remote processor 3000c000.txpru is now up
[    9.184218] icssg-prueth icssg0-ethernet J5: Link is Up - 1Gbps/Full - flow control off
root@dev-machine:~# 
root@dev-machine:~# 
root@dev-machine:~# dmesg | grep recalc
[    0.375515] ti-sci-clk 44043000.system-controller:clock-controller: recalc-rate failed for dev=62, clk=3, ret=-19
root@dev-machine:~# 
root@dev-machine:~# 
root@dev-machine:~# dmesg | grep mdio  
[    2.032837] davinci_mdio 8000f00.mdio: Configuring MDIO in manual mode
[    2.074688] davinci_mdio 8000f00.mdio: davinci mdio revision 9.7, bus freq 1000000
[    2.087202] davinci_mdio 8000f00.mdio: phy[0]: device 8000f00.mdio:00, driver TI DP83867
[    2.095328] davinci_mdio 8000f00.mdio: phy[1]: device 8000f00.mdio:01, driver TI DP83867
[    3.334456] davinci_mdio 30032400.mdio: Configuring MDIO in manual mode
[    3.381493] davinci_mdio 30032400.mdio: davinci mdio revision 1.7, bus freq 1000000
[    3.446967] davinci_mdio 30032400.mdio: phy[4]: device 30032400.mdio:04, driver TI DP83867
[    4.114154] am65-cpsw-nuss 8000000.ethernet J2: PHY [8000f00.mdio:00] driver [TI DP83867] (irq=POLL)
[    4.314471] am65-cpsw-nuss 8000000.ethernet J1: PHY [8000f00.mdio:01] driver [TI DP83867] (irq=POLL)
[    5.464147] TI DP83867 30032400.mdio:04: attached PHY driver (mii_bus:phy_addr=30032400.mdio:04, irq=POLL)
root@dev-machine:~#