• Peter Chen's avatar
    ARM: dts: imx27.dtsi: change the clock information for usb · facf47ee
    Peter Chen authored
    For imx27, it needs three clocks to let the controller work,
    the old code is wrong, and usbmisc has not included clock handling
    code any more. Without this patch, it will cause below data
    abort when accessing usbmisc registers.
    usbcore: registered new interface driver usb-storage
    Unhandled fault: external abort on non-linefetch (0x008) at 0xf4424600
    pgd = c0004000
    [f4424600] *pgd=10000452(bad)
    Internal error: : 8 [#1] PREEMPT ARM
    Modules linked in:
    CPU: 0 PID: 1 Comm: swapper Not tainted 4.1.0-next-20150701-dirty #3089
    Hardware name: Freescale i.MX27 (Device Tree Support)
    task: c7832b60 ti: c783e000 task.ti: c783e000
    PC is at usbmisc_imx27_init+0x4c/0xbc
    LR is at usbmisc_imx27_init+0x40/0xbc
    pc : [<c03cb5c0>]    lr : [<c03cb5b4>]    psr: 60000093
    sp : c783fe08  ip : 00000000  fp : 00000000
    r10: c0576434  r9 : 0000009c  r8 : c7a773a0
    r7 : 01000000  r6 : 60000013  r5 : c7a776f0  r4 : c7a773f0
    r3 : f4424600  r2 : 00000000  r1 : 00000001  r0 : 00000001
    Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
    Control: 0005317f  Table: a0004000  DAC: 00000017
    Process swapper (pid: 1, stack limit = 0xc783e190)
    Stack: (0xc783fe08 to 0xc7840000)
    Signed-off-by: default avatarPeter Chen <peter.chen@freescale.com>
    Reported-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
    Tested-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
    Cc: <stable@vger.kernel.org> #v4.1+
    Acked-by: default avatarShawn Guo <shawnguo@kernel.org>
imx27.dtsi 14.8 KB