2009/7/14 Daniel Mack <daniel@xxxxxxxx>: > On Tue, Jul 14, 2009 at 09:38:53AM +0200, javier Martin wrote: >> Well, I am using gdb for debugging the kernel through JTAG, >> it currently crashes in function "static int __init ehci_hcd_init(void)" >> when executing line "retval = platform_driver_register(&PLATFORM_DRIVER);". > > The platform_driver's probe function is also called. Set a breakpoint at > ehci_mxc_drv_probe(), the real crash must be there or in one the > functions called. > > Daniel > > Yeah, you are right, the hierarchy is as follows: ehci_mxc_setup() -> ehci_reset() -> ehci_hub_control() In "ehci_hub_control" it crashes in the following "ehci_readl": case USB_PORT_FEAT_POWER: if (HCS_PPC (ehci->hcs_params)) ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_POWER), status_reg); break; Where "status_reg" is 0xc4846184, it seems this is a wrong value because base address of USB in i.mx27 is 0x10024000. What do you think? -- Javier Martin Vista Silicon S.L. Universidad de Cantabria CDTUC - FASE C - Oficina S-345 Avda de los Castros s/n 39005- Santander. Cantabria. Spain +34 942 25 32 60 www.vista-silicon.com -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
