[Letux-kernel] [PATCH 2/5] DTS: MIPS: JZ4780: add USB PHY&OTG
H. Nikolaus Schaller
hns at goldelico.com
Mon Sep 21 19:46:30 CEST 2020
Hi,
> Am 21.09.2020 um 19:08 schrieb Zhou Yanjie <zhouyanjie at wanyeetech.com>:
>
> 在 2020/9/22 上午12:58, H. Nikolaus Schaller 写道:
>> Hi,
>>
>>> Am 21.09.2020 um 18:36 schrieb Zhou Yanjie <zhouyanjie at wanyeetech.com>:
>>>
>>>> What *is* working is connecting the USB port to a host PC and running
>>>> the CI20 in client mode (e.g. g_ether).
>>>>
>>>> That is already good progress!
>>>
>>> Maybe you can try this patch. I tested it on CU1000-Neo and CU1830-Neo, and it can works in host mode, but I haven't tested it on CI20. My CI20 won't be able to come back to me until the weekend.
>>>
>>> Thanks and best regards!
>> Mayby it was scrubbed somewhere... Please can you send it again?
>
>
> Ah, my fault, I forgot to add attachments.
Thanks! It is a new generic-PHY driver, that is nice!
Unfortunately:
[ 10.961565] dwc2 13500000.usb: supply vusb_a not found, using dummy regulator
[ 10.994543] dwc2_lowlevel_hw_init: 8
[ 10.998163] dwc2_driver_probe: 2
[ 11.001509] dwc2_driver_probe: 3
[ 11.007437] dwc2 13500000.usb: registering common handler for irq21
[ 11.025963] dwc2_driver_probe: 4
[ 11.030817] dwc2 13500000.usb: Looking up vbus-supply from device tree
[ 11.043473] dwc2 13500000.usb: Looking up vbus-supply property in node /usb at 13500000 failed
[ 11.052065] dwc2_driver_probe: 5
[ 11.058226] CPU 0 Unable to handle kernel paging request at virtual address 00000014, epc == 8045b054, ra == 8045b05c
[ 10.986077] Oops[#1]:
[ 10.988413] CPU: 0 PID: 1298 Comm: systemd-udevd Not tainted 5.9.0-rc5-letux-l400+ #3478
[ 10.996555] $ 0 : 00000000 00000001 8045b044 8fa3c820
[ 11.001819] $ 4 : 8fae6200 00000000 00000000 fffffffd
[ 11.007079] $ 8 : 00000000 00000c00 00000000 fefefeff
[ 11.012339] $12 : 8eb05448 77d45dc0 00000000 7fc02d54
[ 11.017599] $16 : 00000000 fffffdf4 8fae63b8 8fa35410
[ 11.022859] $20 : c0390000 00000000 00000000 c0390000
[ 11.028121] $24 : 556f4af8 8006a47c
[ 11.033379] $28 : 8ec4c000 8ec4dad0 c0380000 8045b05c
[ 11.038637] Hi : 00000000
[ 11.041542] Lo : 000005dc
[ 11.044459] epc : 8045b054 ingenic_usb_phy_power_on+0x10/0x4c
[ 11.050418] ra : 8045b05c ingenic_usb_phy_power_on+0x18/0x4c
[ 11.056363] Status: 10000c03 KERNEL EXL IE
[ 11.060575] Cause : 80800008 (ExcCode 02)
[ 10.977233] BadVA : 00000014
[ 10.980139] PrId : 3ee1024f (Ingenic XBurst)
[ 10.984519] Modules linked in: ingenic_drm(+) dw_hdmi dm9000 gpio_ir_recv drm_kms_helper dwc2(+) gpio_keys mii pvrsrvkm_jz4780_sgx540_130 syscopyarea nvmem_jz4780_efuse rtc_pcf8563 sysfillrect sysimgblt fb_sys_fops drm drm_panel_orientation_quirks ipv6 autofs4
[ 11.007710] Process systemd-udevd (pid: 1298, threadinfo=d81e60f6, task=be49d30b, tls=77e84790)
[ 11.016463] Stack : 8ed66080 00000001 00000000 00000000 00000001 00000000 8fae6200 8045a7b8
[ 11.024879] 8ed66080 8048eb04 8ed66080 8f829500 00000000 8ed66080 8ecb7700 c036e894
[ 11.033302] c0390000 80087a44 c0380000 c036f084 8ed66080 8ed66080 80087a10 8fa35400
[ 11.041718] c0380000 c036f0a0 8eb9e210 c0385d98 00000024 00000000 00000080 8fa39880
[ 11.050133] 8ed66080 80a0f0c0 00000001 00000001 8fa39980 31c729d8 8fa35410 c038b354
[ 11.058551] ...
[ 11.061025] Call Trace:
[ 10.976129] [<8045b054>] ingenic_usb_phy_power_on+0x10/0x4c
[ 10.981743] [<8045a7b8>] phy_power_on+0x94/0x114
[ 10.986519] [<c036e894>] dwc2_lowlevel_hw_enable+0xf0/0x130 [dwc2]
[ 10.992902] [<c036f0a0>] dwc2_driver_probe+0x514/0x9f4 [dwc2]
[ 10.998799] [<804e3a6c>] platform_drv_probe+0x58/0xb4
[ 11.003891] [<804e2380>] really_probe+0x1f0/0x470
[ 11.008630] [<804e1b14>] driver_probe_device+0x1d8/0x224
[ 11.013977] [<804e1dc8>] device_driver_attach+0x6c/0x94
[ 11.019237] [<804e1f0c>] __driver_attach+0x11c/0x138
[ 11.024250] [<804df818>] bus_for_each_dev+0x70/0xc0
[ 11.029162] [<804e0ac0>] bus_add_driver+0x110/0x1f0
[ 11.034067] [<804e2a30>] driver_register+0xcc/0x120
[ 11.038974] [<80010e30>] do_one_initcall+0xb8/0x298
[ 11.043882] [<800c7910>] do_init_module+0x74/0x204
[ 11.048701] [<800c61e4>] load_module+0x139c/0x1934
[ 11.053519] [<800c6974>] sys_finit_module+0xb0/0xe0
[ 11.058429] [<80022498>] syscall_common+0x34/0x58
[ 10.975779] Code: afbf001c afb00018 8c900040 <0c1285b7> 8e040014 10400009 8fbf001c 3c05809e 8e040008
[ 10.985591]
[ 10.989159] ---[ end trace 3424477db7f6dae6 ]---
[ 10.997115] Kernel panic - not syncing: Fatal exception
[ 11.002439] Rebooting in 10 seconds..
Do we have to specify some power controller in DTS for using ingenic_usb_phy_power_on()?
BR and thanks,
Nikolaus
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