[+cc Richard, Shawn, linux-arm-kernel (all from MAINTAINERS)] On Tue, Jan 28, 2014 at 1:02 AM, Kamel BOUHARA <k.bouhara@xxxxxxxxx> wrote: > Hello, > > Im getting trouble with kernel 3.13 at boot time, the pcie link failed > to get up with the following log: > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1 at drivers/gpio/gpiolib.c:159 gpio_to_desc+0x34/0x48() > invalid GPIO -2 > Modules linked in: > CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0+ #4 > Backtrace: > [<8001217c>] (dump_backtrace) from [<80012460>] (show_stack+0x18/0x1c) > r6:802b9548 r5:00000000 r4:808d3060 r3:00000000 > [<80012448>] (show_stack) from [<806414fc>] (dump_stack+0x84/0x9c) > [<80641478>] (dump_stack) from [<800289f8>] (warn_slowpath_common+0x70/0x94) > r5:00000009 r4:bf05bcb0 > [<80028988>] (warn_slowpath_common) from [<80028a54>] > (warn_slowpath_fmt+0x38/0x40) > r8:01f00000 r7:00000000 r6:0011cc11 r5:808b68c0 r4:bf24fa30 > [<80028a20>] (warn_slowpath_fmt) from [<802b9548>] (gpio_to_desc+0x34/0x48) > r3:fffffffe r2:807d23fc > [<802b9514>] (gpio_to_desc) from [<802d9de0>] (imx6_pcie_host_init+0x174/0x434) > [<802d9c6c>] (imx6_pcie_host_init) from [<80886dbc>] > (dw_pcie_host_init+0x348/0x41c) > r6:00000000 r5:808d52cc r4:00000020 r3:802d9c6c > [<80886a74>] (dw_pcie_host_init) from [<808871d4>] (imx6_pcie_probe+0x320/0x3dc) > r10:00000000 r9:000000c4 r8:808d539c r7:bf7e3384 r6:bf24fa30 r5:bf135810 > r4:bf24fa10 > [<80886eb4>] (imx6_pcie_probe) from [<8034b670>] (platform_drv_probe+0x20/0x50) > r8:808d539c r7:00000000 r6:00000000 r5:808d539c r4:bf135810 > [<8034b650>] (platform_drv_probe) from [<80349c74>] > (driver_probe_device+0x118/0x234) > r5:bf135810 r4:80e526b8 > [<80349b5c>] (driver_probe_device) from [<80349e78>] (__driver_attach+0x9c/0xa0) > r8:80886e90 r7:00000000 r6:bf135844 r5:808d539c r4:bf135810 r3:00000000 > [<80349ddc>] (__driver_attach) from [<8034806c>] (bus_for_each_dev+0x68/0x9c) > r6:80349ddc r5:808d539c r4:00000000 r3:00000000 > [<80348004>] (bus_for_each_dev) from [<8034972c>] (driver_attach+0x20/0x28) > r6:808df6a8 r5:bf1f5e00 r4:808d539c > [<8034970c>] (driver_attach) from [<803493b0>] (bus_add_driver+0x148/0x1f4) > [<80349268>] (bus_add_driver) from [<8034a4c8>] (driver_register+0x80/0x100) > r7:8090e640 r6:8090e640 r5:00000005 r4:808d539c > [<8034a448>] (driver_register) from [<8034b63c>] > (__platform_driver_register+0x50/0x64) > r5:00000005 r4:808d5388 > [<8034b5ec>] (__platform_driver_register) from [<8034b6e0>] > (platform_driver_probe+0x28/0xac) > [<8034b6b8>] (platform_driver_probe) from [<80886ea8>] > (imx6_pcie_init+0x18/0x24) > r5:00000005 r4:808aa104 > [<80886e90>] (imx6_pcie_init) from [<80008978>] (do_one_initcall+0x100/0x164) > [<80008878>] (do_one_initcall) from [<8085ecc0>] > (kernel_init_freeable+0x10c/0x1d0) > r10:8089e060 r9:000000c4 r8:8089e050 r7:8090e640 r6:8090e640 r5:00000005 > r4:808aa104 > [<8085ebb4>] (kernel_init_freeable) from [<8063b67c>] (kernel_init+0x10/0x120) > r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8063b66c > r4:00000000 > [<8063b66c>] (kernel_init) from [<8000e9c8>] (ret_from_fork+0x14/0x2c) > r4:00000000 r3:ffffffff > ---[ end trace b5e746dfc2398cd6 ]--- > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1 at drivers/gpio/gpiolib.c:159 gpio_to_desc+0x34/0x48() > invalid GPIO -2 > Modules linked in: > CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.13.0+ #4 > Backtrace: > [<8001217c>] (dump_backtrace) from [<80012460>] (show_stack+0x18/0x1c) > r6:802b9548 r5:00000000 r4:808d3060 r3:00000000 > [<80012448>] (show_stack) from [<806414fc>] (dump_stack+0x84/0x9c) > [<80641478>] (dump_stack) from [<800289f8>] (warn_slowpath_common+0x70/0x94) > r5:00000009 r4:bf05bcb0 > [<80028988>] (warn_slowpath_common) from [<80028a54>] > (warn_slowpath_fmt+0x38/0x40) > r8:01f00000 r7:00000000 r6:0011cc11 r5:808b68c0 r4:bf24fa30 > [<80028a20>] (warn_slowpath_fmt) from [<802b9548>] (gpio_to_desc+0x34/0x48) > r3:fffffffe r2:807d23fc > [<802b9514>] (gpio_to_desc) from [<802d9df8>] (imx6_pcie_host_init+0x18c/0x434) > [<802d9c6c>] (imx6_pcie_host_init) from [<80886dbc>] > (dw_pcie_host_init+0x348/0x41c) > r6:00000000 r5:808d52cc r4:00000020 r3:802d9c6c > [<80886a74>] (dw_pcie_host_init) from [<808871d4>] (imx6_pcie_probe+0x320/0x3dc) > r10:00000000 r9:000000c4 r8:808d539c r7:bf7e3384 r6:bf24fa30 r5:bf135810 > r4:bf24fa10 > [<80886eb4>] (imx6_pcie_probe) from [<8034b670>] (platform_drv_probe+0x20/0x50) > r8:808d539c r7:00000000 r6:00000000 r5:808d539c r4:bf135810 > [<8034b650>] (platform_drv_probe) from [<80349c74>] > (driver_probe_device+0x118/0x234) > r5:bf135810 r4:80e526b8 > [<80349b5c>] (driver_probe_device) from [<80349e78>] (__driver_attach+0x9c/0xa0) > r8:80886e90 r7:00000000 r6:bf135844 r5:808d539c r4:bf135810 r3:00000000 > [<80349ddc>] (__driver_attach) from [<8034806c>] (bus_for_each_dev+0x68/0x9c) > r6:80349ddc r5:808d539c r4:00000000 r3:00000000 > [<80348004>] (bus_for_each_dev) from [<8034972c>] (driver_attach+0x20/0x28) > r6:808df6a8 r5:bf1f5e00 r4:808d539c > [<8034970c>] (driver_attach) from [<803493b0>] (bus_add_driver+0x148/0x1f4) > [<80349268>] (bus_add_driver) from [<8034a4c8>] (driver_register+0x80/0x100) > r7:8090e640 r6:8090e640 r5:00000005 r4:808d539c > [<8034a448>] (driver_register) from [<8034b63c>] > (__platform_driver_register+0x50/0x64) > r5:00000005 r4:808d5388 > [<8034b5ec>] (__platform_driver_register) from [<8034b6e0>] > (platform_driver_probe+0x28/0xac) > [<8034b6b8>] (platform_driver_probe) from [<80886ea8>] > (imx6_pcie_init+0x18/0x24) > r5:00000005 r4:808aa104 > [<80886e90>] (imx6_pcie_init) from [<80008978>] (do_one_initcall+0x100/0x164) > [<80008878>] (do_one_initcall) from [<8085ecc0>] > (kernel_init_freeable+0x10c/0x1d0) > r10:8089e060 r9:000000c4 r8:8089e050 r7:8090e640 r6:8090e640 r5:00000005 > r4:808aa104 > [<8085ebb4>] (kernel_init_freeable) from [<8063b67c>] (kernel_init+0x10/0x120) > r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8063b66c > r4:00000000 > [<8063b66c>] (kernel_init) from [<8000e9c8>] (ret_from_fork+0x14/0x2c) > r4:00000000 r3:ffffffff > ---[ end trace b5e746dfc2398cd7 ]--- > imx6q-pcie 1ffc000.pcie: phy link never came up > PCI host bridge to bus 0000:00 > pci_bus 0000:00: root bus resource [io 0x1000-0x10000] > pci_bus 0000:00: root bus resource [mem 0x01000000-0x01efffff] > pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff] Not related to the GPIO/link problem, but something's wrong here -- the host bridge driver should be telling us what bus numbers are behind the host bridge. Since it didn't, the PCI core had to guess. > PCI: bus0: Fast back to back transfers disabled > PCI: bus1: Fast back to back transfers enabled > pci 0000:00:00.0: BAR 0: assigned [mem 0x01000000-0x010fffff] > pci 0000:00:00.0: BAR 6: assigned [mem 0x01100000-0x0110ffff pref] > pci 0000:00:00.0: PCI bridge to [bus 01] > pci 0000:00:00.0: PCI bridge to [bus 01] > > Please, any help is welcome. > Regards, > Kamel.B > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
