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TWR-LS1021A and TWR-SER2: Kernel crash when loading fsl_usb2_udc.ko

Question asked by Chan Park on Jan 30, 2015
Latest reply on Aug 12, 2015 by ufedor

Hi,

 

I'm using LS1021A-SDK-V1.3-20141024-yocto with the following change.

 

diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi

index 638ac50..0b8cd28 100644

--- a/arch/arm/boot/dts/ls1021a.dtsi

+++ b/arch/arm/boot/dts/ls1021a.dtsi

@@ -764,7 +764,7 @@

                        #address-cells = <1>;

                        #size-cells = <0>;

                        interrupts = <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>;

-                       dr_mode = "host";

+                       dr_mode = "peripheral";

                        phy_type = "ulpi";

                };

 

When loading the UDC Gadget driver, there is a kernel crash so I can't load g_zero.ko.

Can you confirm if USB2 in ULPI is tested for device mode?

 

root@ls1021atwr:~# cd /lib/modules/3.12.0+/kernel/drivers/usb/host/

root@ls1021atwr:/lib/modules/3.12.0+/kernel/drivers/usb/host#

root@ls1021atwr:/lib/modules/3.12.0+/kernel/drivers/usb/host#

root@ls1021atwr:/lib/modules/3.12.0+/kernel/drivers/usb/host# insmod fsl-mph-dr-of.ko

Unable to handle kernel NULL pointer dereference at virtual address 00000024

pgd = bf745600

[00000024] *pgd=bd84e003, *pmd=bf6c3003, *pte=00000000

Internal error: Oops: 207 [#1] SMP ARM

Modules linked in: fsl_mph_dr_of(+)

CPU: 0 PID: 1058 Comm: insmod Not tainted 3.12.0+ #3

task: bdb3db00 ti: bf55a000 task.ti: bf55a000

PC is at __device_attach+0x18/0x4c

LR is at bus_for_each_drv+0x80/0x94

pc : [<8025b544>]    lr : [<80259a34>]    psr: 60070013

sp : bf55bbc0  ip : bf55bbd8  fp : bf55bbd4

r10: 00000000  r9 : bf12a210  r8 : 00000002

r7 : 00000000  r6 : 8025b52c  r5 : bf68b410  r4 : 805ef8a0

r3 : 00000000  r2 : 00000000  r1 : bf68b410  r0 : 805ef8a0

Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user

Control: 30c53c7d  Table: bf745600  DAC: fffffffd

Process insmod (pid: 1058, stack limit = 0xbf55a240)

Stack: (0xbf55bbc0 to 0xbf55c000)

bbc0: 00000000 bf68b410 bf55bbfc bf55bbd8 80259a34 8025b538 bf004894 bf20ea44

bbe0: 80469344 bf68b410 bf68b444 bf68b410 bf55bc1c bf55bc00 8025b314 802599c0

bc00: 00000001 bf68b410 80616220 bf68b410 bf55bc3c bf55bc20 8025a8c0 8025b2b0

bc20: 00000001 bf68b410 00000000 bf68b418 bf55bc84 bf55bc40 80258d28 8025a89c

bc40: 8046b37c 801f22c8 bf55bc74 bf55bc58 80022200 8046b378 00000200 bf68b400

bc60: 00000002 00000000 7f00094c 00000002 bf68b400 bf10e100 bf55bca4 bf55bc88

bc80: 8025c818 80258844 bf12a200 bf12a210 00000000 7f00094c bf55bd34 bf55bca8

bca0: 7f0003e0 8025c6f4 bf55bcd4 7f000924 800f5948 00000004 00000002 00000001

bcc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000010

bce0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

bd00: 00000000 00000000 bf55bd24 bf12a210 bf12a244 8065928c 7f000974 00000000

bd20: bf55a020 00000000 bf55bd44 bf55bd38 8025c484 7f000050 bf55bd64 bf55bd48

bd40: 8025b3f8 8025c474 bf12a210 bf12a244 7f000974 00000000 bf55bd84 bf55bd68

bd60: 8025b5e8 8025b360 8025b578 00000000 7f000974 8025b578 bf55bdac bf55bd88

bd80: 8025997c 8025b584 bf004874 bf10e1c0 8046b18c 7f000974 80616220 bdbcf800

bda0: bf55bdbc bf55bdb0 8025af64 8025990c bf55bde4 bf55bdc0 8025ab08 8025af50

bdc0: 7f0008b9 bf55bdd0 7f000974 bf55bf48 7f002000 bf55a018 bf55bdfc bf55bde8

bde0: 8025ba38 8025aa30 7f000a08 bf55bf48 bf55be0c bf55be00 8025c99c 8025b9a0

be00: bf55be1c bf55be10 7f002018 8025c958 bf55be94 bf55be20 8000879c 7f00200c

be20: ffffffff 806059e8 00000001 ffffffff bf55be4c bf55be40 8003aac4 801e6890

be40: bf55be7c bf55be50 8003bc54 8003aac0 00000000 bf55be60 800954bc 7f000a08

be60: bf55bf48 00000000 bf55a018 00000018 7f000a08 bf55bf48 00000000 bf55a018

be80: 00000018 bf55beec bf55bf44 bf55be98 800669e4 80008710 ffff8000 00007fff

bea0: 80063db8 00000000 00000000 76f2f8fc bf55bed4 c09de060 00000044 00000000

bec0: 00000000 7f000a14 00160219 00000000 0000000c 801f81a4 00000001 00000000

bee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

bf00: 00000000 00000000 00000000 00000000 00000000 00000000 bf55bf34 00000000

bf20: 76f2f8fc 00000003 0000017b 8000de44 bf55a000 00000000 bf55bfa4 bf55bf48

bf40: 80066d34 80065df4 c09dd000 00001a9c c09ddd40 c09ddc77 c09de4f0 00000b54

bf60: 00000cc4 00000000 00000000 00000000 00000014 00000015 0000000d 00000000

bf80: 00000009 00000000 00000000 76f1fb98 00000000 00021008 00000000 bf55bfa8

bfa0: 8000dcc0 80066cdc 76f1fb98 00000000 00000003 76f2f8fc 00000000 76f1cb40

bfc0: 76f1fb98 00000000 00021008 0000017b 76f2f8fc 00021d00 76f61000 00000000

bfe0: 7ed66c00 7ed66bf0 76f27aa4 76eb3b90 60070010 00000003 00000000 00000000

Backtrace:

[<8025b52c>] (__device_attach+0x0/0x4c) from [<80259a34>] (bus_for_each_drv+0x80/0x94)

r5:bf68b410 r4:00000000

[<802599b4>] (bus_for_each_drv+0x0/0x94) from [<8025b314>] (device_attach+0x70/0x88)

r6:bf68b410 r5:bf68b444 r4:bf68b410

[<8025b2a4>] (device_attach+0x0/0x88) from [<8025a8c0>] (bus_probe_device+0x30/0xa0)

r6:bf68b410 r5:80616220 r4:bf68b410 r3:00000001

[<8025a890>] (bus_probe_device+0x0/0xa0) from [<80258d28>] (device_add+0x4f0/0x5c8)

r6:bf68b418 r5:00000000 r4:bf68b410 r3:00000001

[<80258838>] (device_add+0x0/0x5c8) from [<8025c818>] (platform_device_add+0x130/0x1c4)

[<8025c6e8>] (platform_device_add+0x0/0x1c4) from [<7f0003e0>] (fsl_usb2_mph_dr_of_probe+0x39c/0x490 [fsl_mph_dr_of])

r7:7f00094c r6:00000000 r5:bf12a210 r4:bf12a200

[<7f000044>] (fsl_usb2_mph_dr_of_probe+0x0/0x490 [fsl_mph_dr_of]) from [<8025c484>] (platform_drv_probe+0x1c/0x20)

[<8025c468>] (platform_drv_probe+0x0/0x20) from [<8025b3f8>] (driver_probe_device+0xa4/0x1d8)

[<8025b354>] (driver_probe_device+0x0/0x1d8) from [<8025b5e8>] (__driver_attach+0x70/0x94)

r7:00000000 r6:7f000974 r5:bf12a244 r4:bf12a210

[<8025b578>] (__driver_attach+0x0/0x94) from [<8025997c>] (bus_for_each_dev+0x7c/0x90)

r6:8025b578 r5:7f000974 r4:00000000 r3:8025b578

[<80259900>] (bus_for_each_dev+0x0/0x90) from [<8025af64>] (driver_attach+0x20/0x28)

r6:bdbcf800 r5:80616220 r4:7f000974

[<8025af44>] (driver_attach+0x0/0x28) from [<8025ab08>] (bus_add_driver+0xe4/0x248)

[<8025aa24>] (bus_add_driver+0x0/0x248) from [<8025ba38>] (driver_register+0xa4/0xe8)

r7:bf55a018 r6:7f002000 r5:bf55bf48 r4:7f000974

[<8025b994>] (driver_register+0x0/0xe8) from [<8025c99c>] (__platform_driver_register+0x50/0x64)

r5:bf55bf48 r4:7f000a08

[<8025c94c>] (__platform_driver_register+0x0/0x64) from [<7f002018>] (fsl_usb2_mph_dr_driver_init+0x18/0x24 [fsl_mph_dr_of])

[<7f002000>] (fsl_usb2_mph_dr_driver_init+0x0/0x24 [fsl_mph_dr_of]) from [<8000879c>] (do_one_initcall+0x98/0x134)

[<80008704>] (do_one_initcall+0x0/0x134) from [<800669e4>] (load_module+0xbfc/0xe08)

r9:bf55beec r8:00000018 r7:bf55a018 r6:00000000 r5:bf55bf48

r4:7f000a08

[<80065de8>] (load_module+0x0/0xe08) from [<80066d34>] (SyS_finit_module+0x64/0x74)

[<80066cd0>] (SyS_finit_module+0x0/0x74) from [<8000dcc0>] (ret_fast_syscall+0x0/0x30)

r6:00021008 r5:00000000 r4:76f1fb98

Code: e24cb004 e5903004 e1a04000 e1a05001 (e5933024)

---[ end trace f07d429fba7171e1 ]---

Segmentation fault

Outcomes