Hi,
when tried to activate the USB-OTG or USBH2 with the FDT the system oops
[ 1.034403] ehci-mxc: Freescale On-Chip EHCI Host driver
[ 1.041158] Unable to handle kernel NULL pointer dereference at virtual
address 00000000
[ 1.049406] pgd = c0004000
[ 1.052219] [00000000] *pgd=00000000
[ 1.055868] Internal error: Oops: 5 [#1] ARM
[ 1.060167] Modules linked in:
[ 1.063287] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc7 #2
[ 1.069429] task: c7836000 ti: c783c000 task.ti: c783c000
[ 1.074888] PC is at fsl_usb2_mph_dr_of_probe+0x314/0x428
[ 1.080342] LR is at platform_device_alloc+0x5c/0x6c
[ 1.085362] pc : [<c028c3b4>] lr : [<c021c5c4>] psr: a0000013
[ 1.085362] sp : c783dd68 ip : 00000000 fp : c783ddf4
[ 1.096888] r10: c7872500 r9 : c79ed600 r8 : 00000002
[ 1.102154] r7 : c0564c40 r6 : 00000000 r5 : c7873110 r4 : c7873100
[ 1.108722] r3 : 00000000 r2 : ffffffff r1 : 00000000 r0 : c79ed600
[ 1.115291] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 1.122643] Control: 0005317f Table: a0004000 DAC: 00000017
[ 1.128427] Process swapper (pid: 1, stack limit = 0xc783c1c0)
[ 1.134299] Stack: (0xc783dd68 to 0xc783e000)
[ 1.138718] dd60: c783dd94 c0564c40 c00dac3c 00000000
00000001 00000001
[ 1.146962] dd80: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000010
[ 1.155204] dda0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 1.163452] ddc0: 00000000 00000000 c783dde4 c7873110 c7873144 c0564c00
c058f0b0 00000000
[ 1.171703] dde0: c783c020 00000000 c783de04 c783ddf8 c021bde0 c028c0b0
c783de24 c783de08
[ 1.179953] de00: c021ab48 c021bdd4 c7873110 c7873144 c0564c00 00000000
c783de44 c783de28
[ 1.188204] de20: c021ad40 c021aaac c021acd0 00000000 c0564c00 c021acd0
c783de6c c783de48
[ 1.196457] de40: c02191c4 c021ace0 c7823f4c c786a450 c79f77b4 c0564c00
c055b2b0 c79f7780
[ 1.204709] de60: c783de7c c783de70 c021a6ac c0219158 c783dea4 c783de80
c021a23c c021a69c
[ 1.212962] de80: c04d71b6 c783de90 c0564c00 c053ae0c c0530264 c0572980
c783debc c783dea8
[ 1.221213] dea0: c021b384 c021a168 00000006 c053ae0c c783decc c783dec0
c021c3a8 c021b2f0
[ 1.229466] dec0: c783dedc c783ded0 c053027c c021c368 c783df54 c783dee0
c000888c c0530274
[ 1.237719] dee0: c00d2cb8 c00d29c8 c783df0c c783def8 c051b400 c01c8b84
c069ca87 c069ca8c
[ 1.245969] df00: c783df54 c783df10 c002c26c c051b4d8 00000000 c05198fc
00000006 00000006
[ 1.254219] df20: 00000086 c051909c c00313d0 00000006 00000006 c053ae0c
c053fb70 c0572980
[ 1.262469] df40: c0572980 00000086 c783df94 c783df58 c051bb50 c0008804
00000006 00000006
[ 1.270717] df60: c051b4c8 c783df10 00000001 01234567 00000000 c03f72fc
00000000 00000000
[ 1.278964] df80: 00000000 00000000 c783dfac c783df98 c03f730c c051ba60
00000000 00000000
[ 1.287212] dfa0: 00000000 c783dfb0 c0009450 c03f730c 00000000 00000000
00000000 00000000
[ 1.295453] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 1.303696] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
00000000 00000000
[ 1.311897] Backtrace:
[ 1.314448] [<c028c0a0>] (fsl_usb2_mph_dr_of_probe+0x0/0x428) from
[<c021bde0>] (platform_drv_probe+0x1c/0x20)
[ 1.324544] [<c021bdc4>] (platform_drv_probe+0x0/0x20) from [<c021ab48>]
(driver_probe_device+0xac/0x1e8)
[ 1.334204] [<c021aa9c>] (driver_probe_device+0x0/0x1e8) from [<c021ad40>]
(__driver_attach+0x70/0x94)
[ 1.343544] r7:00000000 r6:c0564c00 r5:c7873144 r4:c7873110
[ 1.349383] [<c021acd0>] (__driver_attach+0x0/0x94) from [<c02191c4>]
(bus_for_each_dev+0x7c/0x90)
[ 1.358375] r6:c021acd0 r5:c0564c00 r4:00000000 r3:c021acd0
[ 1.364210] [<c0219148>] (bus_for_each_dev+0x0/0x90) from [<c021a6ac>]
(driver_attach+0x20/0x28)
[ 1.373026] r6:c79f7780 r5:c055b2b0 r4:c0564c00
[ 1.377796] [<c021a68c>] (driver_attach+0x0/0x28) from [<c021a23c>]
(bus_add_driver+0xe4/0x24c)
[ 1.386573] [<c021a158>] (bus_add_driver+0x0/0x24c) from [<c021b384>]
(driver_register+0xa4/0xe8)
[ 1.395478] r7:c0572980 r6:c0530264 r5:c053ae0c r4:c0564c00
[ 1.401303] [<c021b2e0>] (driver_register+0x0/0xe8) from [<c021c3a8>]
(__platform_driver_register+0x50/0x64)
[ 1.411163] r5:c053ae0c r4:00000006
[ 1.414862] [<c021c358>] (__platform_driver_register+0x0/0x64) from
[<c053027c>] (fsl_usb2_mph_dr_driver_init+0x18/0x20)
[ 1.425812] [<c0530264>] (fsl_usb2_mph_dr_driver_init+0x0/0x20) from
[<c000888c>] (do_one_initcall+0x98/0x140)
[ 1.435889] [<c00087f4>] (do_one_initcall+0x0/0x140) from [<c051bb50>]
(kernel_init_freeable+0x100/0x1c4)
[ 1.445488] r9:00000086 r8:c0572980 r7:c0572980 r6:c053fb70 r5:c053ae0c
r4:00000006
[ 1.453532] [<c051ba50>] (kernel_init_freeable+0x0/0x1c4) from [<c03f730c>]
(kernel_init+0x10/0xec)
[ 1.462610] r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c03f72fc
r4:00000000
[ 1.470645] [<c03f72fc>] (kernel_init+0x0/0xec) from [<c0009450>]
(ret_from_fork+0x14/0x24)
[ 1.479027] r4:00000000 r3:00000000
[ 1.482703] Code: e1c429d0 e1c929f0 e599c08c e594108c (e1c120d0)
[ 1.489025] ---[ end trace 1b9409ded9abd572 ]---
[ 1.493810] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
config: (imx27.dtsi)
usbotg: usb@10024000 {
compatible = "fsl-usb2-dr";
reg = <0x10024000 0x200>;
interrupts = <56>;
dr_mode = "host";
phy_type = "ulpi";
status = "disabled";
};
Fabio Estevam mentioned that:
"You probably need a mx27 entry into drivers/usb/chipidea/usbmisc_imx.c"
Some help welcome.
Chris
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