| Message ID | 1379707266-2301-1-git-send-email-aaro.koskinen@iki.fi (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, Any comments about the below patch? If my analysis is correct, this issue needs to be fixed before any boards that set ONENAND_SYNC_READWRITE can be converted to DT. So the fix should be applied preferably during the current rc-cycle. A. On Fri, Sep 20, 2013 at 11:01:06PM +0300, Aaro Koskinen wrote: > With DT-based boot, the GPMC OneNAND sync mode setup does not work > correctly. During the async mode setup, sync flags gets incorrectly > set in the onenand_async data and the system crashes during the async > setup. Also, the sync mode never gets set in gpmc_onenand_data->flags, so > even without the crash, the actual sync mode setup would never be called. > > The patch fixes this by adjusting the gpmc_onenand_data->flags when the > data is read from the DT. Also while doing this we force the onenand_async > to be always async. > > The patch enables to use the following DTS chunk (that should correspond > the arch/arm/mach-omap2/board-rm680.c board file setup) with Nokia N950, > which currently crashes with 3.12-rc1. The crash output can be also > found below. > > &gpmc { > ranges = <0 0 0x04000000 0x20000000>; > > onenand@0,0 { > #address-cells = <1>; > #size-cells = <1>; > reg = <0 0 0x20000000>; > > gpmc,sync-read; > gpmc,sync-write; > gpmc,burst-length = <16>; > gpmc,burst-read; > gpmc,burst-wrap; > gpmc,burst-write; > gpmc,device-width = <2>; > gpmc,mux-add-data = <2>; > gpmc,cs-on-ns = <0>; > gpmc,cs-rd-off-ns = <87>; > gpmc,cs-wr-off-ns = <87>; > gpmc,adv-on-ns = <0>; > gpmc,adv-rd-off-ns = <10>; > gpmc,adv-wr-off-ns = <10>; > gpmc,oe-on-ns = <15>; > gpmc,oe-off-ns = <87>; > gpmc,we-on-ns = <0>; > gpmc,we-off-ns = <87>; > gpmc,rd-cycle-ns = <112>; > gpmc,wr-cycle-ns = <112>; > gpmc,access-ns = <81>; > gpmc,page-burst-access-ns = <15>; > gpmc,bus-turnaround-ns = <0>; > gpmc,cycle2cycle-delay-ns = <0>; > gpmc,wait-monitoring-ns = <0>; > gpmc,clk-activation-ns = <5>; > gpmc,wr-data-mux-bus-ns = <30>; > gpmc,wr-access-ns = <81>; > gpmc,sync-clk-ps = <15000>; > }; > }; > > [ 1.467559] GPMC CS0: cs_on : 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.474822] GPMC CS0: cs_rd_off : 1 ticks, 5 ns (was 24 ticks) 5 ns > [ 1.482116] GPMC CS0: cs_wr_off : 14 ticks, 71 ns (was 24 ticks) 71 ns > [ 1.489349] GPMC CS0: adv_on : 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.496582] GPMC CS0: adv_rd_off: 3 ticks, 15 ns (was 3 ticks) 15 ns > [ 1.503845] GPMC CS0: adv_wr_off: 3 ticks, 15 ns (was 3 ticks) 15 ns > [ 1.511077] GPMC CS0: oe_on : 3 ticks, 15 ns (was 4 ticks) 15 ns > [ 1.518310] GPMC CS0: oe_off : 1 ticks, 5 ns (was 24 ticks) 5 ns > [ 1.525543] GPMC CS0: we_on : 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.532806] GPMC CS0: we_off : 8 ticks, 40 ns (was 24 ticks) 40 ns > [ 1.540039] GPMC CS0: rd_cycle : 4 ticks, 20 ns (was 29 ticks) 20 ns > [ 1.547302] GPMC CS0: wr_cycle : 4 ticks, 20 ns (was 29 ticks) 20 ns > [ 1.554504] GPMC CS0: access : 0 ticks, 0 ns (was 23 ticks) 0 ns > [ 1.561767] GPMC CS0: page_burst_access: 0 ticks, 0 ns (was 3 ticks) 0 ns > [ 1.569641] GPMC CS0: bus_turnaround: 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.577270] GPMC CS0: cycle2cycle_delay: 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.585144] GPMC CS0: wait_monitoring: 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.592834] GPMC CS0: clk_activation: 0 ticks, 0 ns (was 0 ticks) 0 ns > [ 1.600463] GPMC CS0: wr_data_mux_bus: 5 ticks, 25 ns (was 8 ticks) 25 ns > [ 1.608154] GPMC CS0: wr_access : 0 ticks, 0 ns (was 23 ticks) 0 ns > [ 1.615386] GPMC CS0 CLK period is 5 ns (div 1) > [ 1.625122] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf009e442 > [ 1.633178] Internal error: : 1008 [#1] ARM > [ 1.637573] Modules linked in: > [ 1.640777] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc1-n9xx-los.git-5318619-00006-g4baa700-dirty #26 > [ 1.651123] task: ef04c000 ti: ef050000 task.ti: ef050000 > [ 1.656799] PC is at gpmc_onenand_setup+0x98/0x1e0 > [ 1.661865] LR is at gpmc_cs_set_timings+0x494/0x5a4 > [ 1.667083] pc : [<c002e040>] lr : [<c001f384>] psr: 60000113 > [ 1.667083] sp : ef051d10 ip : ef051ce0 fp : ef051d94 > [ 1.679138] r10: c0caaf60 r9 : ef050000 r8 : ef18b32c > [ 1.684631] r7 : f0080000 r6 : c0caaf60 r5 : 00000000 r4 : f009e400 > [ 1.691497] r3 : f009e442 r2 : 80050000 r1 : 00000014 r0 : 00000000 > [ 1.698333] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel > [ 1.706024] Control: 10c5387d Table: af290019 DAC: 00000015 > [ 1.712066] Process swapper (pid: 1, stack limit = 0xef050240) > [ 1.718200] Stack: (0xef051d10 to 0xef052000) > [ 1.722778] 1d00: 00004000 00001402 00000000 00000005 > [ 1.731384] 1d20: 00000047 00000000 0000000f 0000000f 00000000 00000028 0000000f 00000005 > [ 1.739990] 1d40: 00000000 00000000 00000014 00000014 00000000 00000000 00000000 00000000 > [ 1.748596] 1d60: 00000000 00000019 00000000 00000000 ef18b000 ef099c50 c0c8cb30 00000000 > [ 1.757171] 1d80: c0488074 c048f868 ef051dcc ef051d98 c024447c c002dfb4 00000000 c048f868 > [ 1.765777] 1da0: 00000000 00000000 c010e4a4 c0dbbb7c c0c8cb40 00000000 c0ca2500 c0488074 > [ 1.774383] 1dc0: ef051ddc ef051dd0 c01fd508 c0244370 ef051dfc ef051de0 c01fc204 c01fd4f4 > [ 1.782989] 1de0: c0c8cb40 c0ca2500 c0c8cb74 00000000 ef051e1c ef051e00 c01fc3b0 c01fc104 > [ 1.791595] 1e00: ef0983bc 00000000 c0ca2500 c01fc31c ef051e44 ef051e20 c01fa794 c01fc328 > [ 1.800201] 1e20: ef03634c ef0983b0 ef27d534 c0ca2500 ef27d500 c0c9a2f8 ef051e54 ef051e48 > [ 1.808807] 1e40: c01fbcfc c01fa744 ef051e84 ef051e58 c01fb838 c01fbce4 c0411df8 c0caa040 > [ 1.817413] 1e60: ef051e84 c0ca2500 00000006 c0caa040 00000066 c0488074 ef051e9c ef051e88 > [ 1.825988] 1e80: c01fca30 c01fb768 c04975b8 00000006 ef051eac ef051ea0 c01fd728 c01fc9bc > [ 1.834594] 1ea0: ef051ebc ef051eb0 c048808c c01fd6e4 ef051f4c ef051ec0 c0008888 c0488080 > [ 1.843200] 1ec0: 0000006f c046bae8 00000000 00000000 ef051efc ef051ee0 ef051f04 ef051ee8 > [ 1.851806] 1ee0: c046d400 c0181218 c046d410 c18da8d5 c036a8e4 00000066 ef051f4c ef051f08 > [ 1.860412] 1f00: c004b9a8 c046d41c c048f840 00000006 00000006 c046b488 00000000 c043ec08 > [ 1.869018] 1f20: ef051f4c c04975b8 00000006 c0caa040 00000066 c046d410 c048f85c c048f868 > [ 1.877593] 1f40: ef051f94 ef051f50 c046db8c c00087a0 00000006 00000006 c046d410 ffffffff > [ 1.886199] 1f60: ffffffff ffffffff ffffffff 00000000 c0348fd0 00000000 00000000 00000000 > [ 1.894805] 1f80: 00000000 00000000 ef051fac ef051f98 c0348fe0 c046daa8 00000000 00000000 > [ 1.903411] 1fa0: 00000000 ef051fb0 c000e7f8 c0348fdc 00000000 00000000 00000000 00000000 > [ 1.912017] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 1.920623] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff > [ 1.929199] Backtrace: > [ 1.931793] [<c002dfa8>] (gpmc_onenand_setup+0x0/0x1e0) from [<c024447c>] (omap2_onenand_probe+0x118/0x49c) > [ 1.942047] [<c0244364>] (omap2_onenand_probe+0x0/0x49c) from [<c01fd508>] (platform_drv_probe+0x20/0x24) > [ 1.952117] r8:c0488074 r7:c0ca2500 r6:00000000 r5:c0c8cb40 r4:c0dbbb7c > [ 1.959197] [<c01fd4e8>] (platform_drv_probe+0x0/0x24) from [<c01fc204>] (driver_probe_device+0x10c/0x224) > [ 1.969360] [<c01fc0f8>] (driver_probe_device+0x0/0x224) from [<c01fc3b0>] (__driver_attach+0x94/0x98) > [ 1.979125] r7:00000000 r6:c0c8cb74 r5:c0ca2500 r4:c0c8cb40 > [ 1.985107] [<c01fc31c>] (__driver_attach+0x0/0x98) from [<c01fa794>] (bus_for_each_dev+0x5c/0x90) > [ 1.994506] r6:c01fc31c r5:c0ca2500 r4:00000000 r3:ef0983bc > [ 2.000488] [<c01fa738>] (bus_for_each_dev+0x0/0x90) from [<c01fbcfc>] (driver_attach+0x24/0x28) > [ 2.009735] r6:c0c9a2f8 r5:ef27d500 r4:c0ca2500 > [ 2.014587] [<c01fbcd8>] (driver_attach+0x0/0x28) from [<c01fb838>] (bus_add_driver+0xdc/0x260) > [ 2.023742] [<c01fb75c>] (bus_add_driver+0x0/0x260) from [<c01fca30>] (driver_register+0x80/0xfc) > [ 2.033081] r8:c0488074 r7:00000066 r6:c0caa040 r5:00000006 r4:c0ca2500 > [ 2.040161] [<c01fc9b0>] (driver_register+0x0/0xfc) from [<c01fd728>] (__platform_driver_register+0x50/0x64) > [ 2.050476] r5:00000006 r4:c04975b8 > [ 2.054260] [<c01fd6d8>] (__platform_driver_register+0x0/0x64) from [<c048808c>] (omap2_onenand_driver_init+0x18/0x20) > [ 2.065490] [<c0488074>] (omap2_onenand_driver_init+0x0/0x20) from [<c0008888>] (do_one_initcall+0xf4/0x150) > [ 2.075836] [<c0008794>] (do_one_initcall+0x0/0x150) from [<c046db8c>] (kernel_init_freeable+0xf0/0x1b4) > [ 2.085815] [<c046da9c>] (kernel_init_freeable+0x0/0x1b4) from [<c0348fe0>] (kernel_init+0x10/0xec) > [ 2.095336] [<c0348fd0>] (kernel_init+0x0/0xec) from [<c000e7f8>] (ret_from_fork+0x14/0x3c) > [ 2.104125] r4:00000000 r3:00000000 > [ 2.107879] Code: ebffc3ae e2505000 ba00002e e2843042 (e1d320b0) > [ 2.114318] ---[ end trace b8ee3e3e5e002451 ]--- > > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> > --- > arch/arm/mach-omap2/gpmc-onenand.c | 12 +++++++++++- > 1 file changed, 11 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c > index 64b5a83..8b6876c 100644 > --- a/arch/arm/mach-omap2/gpmc-onenand.c > +++ b/arch/arm/mach-omap2/gpmc-onenand.c > @@ -272,9 +272,19 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base) > struct gpmc_timings t; > int ret; > > - if (gpmc_onenand_data->of_node) > + if (gpmc_onenand_data->of_node) { > gpmc_read_settings_dt(gpmc_onenand_data->of_node, > &onenand_async); > + if (onenand_async.sync_read || onenand_async.sync_write) { > + if (onenand_async.sync_write) > + gpmc_onenand_data->flags |= > + ONENAND_SYNC_READWRITE; > + else > + gpmc_onenand_data->flags |= ONENAND_SYNC_READ; > + onenand_async.sync_read = false; > + onenand_async.sync_write = false; > + } > + } > > omap2_onenand_set_async_mode(onenand_base); > > -- > 1.8.4.rc3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
* Aaro Koskinen <aaro.koskinen@iki.fi> [131001 14:41]: > Hi, > > Any comments about the below patch? If my analysis is correct, this issue > needs to be fixed before any boards that set ONENAND_SYNC_READWRITE can > be converted to DT. So the fix should be applied preferably during the > current rc-cycle. Thanks I'll apply it into omap-for-v3.12/fixes. Regards, Tony
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c index 64b5a83..8b6876c 100644 --- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -272,9 +272,19 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base) struct gpmc_timings t; int ret; - if (gpmc_onenand_data->of_node) + if (gpmc_onenand_data->of_node) { gpmc_read_settings_dt(gpmc_onenand_data->of_node, &onenand_async); + if (onenand_async.sync_read || onenand_async.sync_write) { + if (onenand_async.sync_write) + gpmc_onenand_data->flags |= + ONENAND_SYNC_READWRITE; + else + gpmc_onenand_data->flags |= ONENAND_SYNC_READ; + onenand_async.sync_read = false; + onenand_async.sync_write = false; + } + } omap2_onenand_set_async_mode(onenand_base);
With DT-based boot, the GPMC OneNAND sync mode setup does not work correctly. During the async mode setup, sync flags gets incorrectly set in the onenand_async data and the system crashes during the async setup. Also, the sync mode never gets set in gpmc_onenand_data->flags, so even without the crash, the actual sync mode setup would never be called. The patch fixes this by adjusting the gpmc_onenand_data->flags when the data is read from the DT. Also while doing this we force the onenand_async to be always async. The patch enables to use the following DTS chunk (that should correspond the arch/arm/mach-omap2/board-rm680.c board file setup) with Nokia N950, which currently crashes with 3.12-rc1. The crash output can be also found below. &gpmc { ranges = <0 0 0x04000000 0x20000000>; onenand@0,0 { #address-cells = <1>; #size-cells = <1>; reg = <0 0 0x20000000>; gpmc,sync-read; gpmc,sync-write; gpmc,burst-length = <16>; gpmc,burst-read; gpmc,burst-wrap; gpmc,burst-write; gpmc,device-width = <2>; gpmc,mux-add-data = <2>; gpmc,cs-on-ns = <0>; gpmc,cs-rd-off-ns = <87>; gpmc,cs-wr-off-ns = <87>; gpmc,adv-on-ns = <0>; gpmc,adv-rd-off-ns = <10>; gpmc,adv-wr-off-ns = <10>; gpmc,oe-on-ns = <15>; gpmc,oe-off-ns = <87>; gpmc,we-on-ns = <0>; gpmc,we-off-ns = <87>; gpmc,rd-cycle-ns = <112>; gpmc,wr-cycle-ns = <112>; gpmc,access-ns = <81>; gpmc,page-burst-access-ns = <15>; gpmc,bus-turnaround-ns = <0>; gpmc,cycle2cycle-delay-ns = <0>; gpmc,wait-monitoring-ns = <0>; gpmc,clk-activation-ns = <5>; gpmc,wr-data-mux-bus-ns = <30>; gpmc,wr-access-ns = <81>; gpmc,sync-clk-ps = <15000>; }; }; [ 1.467559] GPMC CS0: cs_on : 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.474822] GPMC CS0: cs_rd_off : 1 ticks, 5 ns (was 24 ticks) 5 ns [ 1.482116] GPMC CS0: cs_wr_off : 14 ticks, 71 ns (was 24 ticks) 71 ns [ 1.489349] GPMC CS0: adv_on : 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.496582] GPMC CS0: adv_rd_off: 3 ticks, 15 ns (was 3 ticks) 15 ns [ 1.503845] GPMC CS0: adv_wr_off: 3 ticks, 15 ns (was 3 ticks) 15 ns [ 1.511077] GPMC CS0: oe_on : 3 ticks, 15 ns (was 4 ticks) 15 ns [ 1.518310] GPMC CS0: oe_off : 1 ticks, 5 ns (was 24 ticks) 5 ns [ 1.525543] GPMC CS0: we_on : 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.532806] GPMC CS0: we_off : 8 ticks, 40 ns (was 24 ticks) 40 ns [ 1.540039] GPMC CS0: rd_cycle : 4 ticks, 20 ns (was 29 ticks) 20 ns [ 1.547302] GPMC CS0: wr_cycle : 4 ticks, 20 ns (was 29 ticks) 20 ns [ 1.554504] GPMC CS0: access : 0 ticks, 0 ns (was 23 ticks) 0 ns [ 1.561767] GPMC CS0: page_burst_access: 0 ticks, 0 ns (was 3 ticks) 0 ns [ 1.569641] GPMC CS0: bus_turnaround: 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.577270] GPMC CS0: cycle2cycle_delay: 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.585144] GPMC CS0: wait_monitoring: 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.592834] GPMC CS0: clk_activation: 0 ticks, 0 ns (was 0 ticks) 0 ns [ 1.600463] GPMC CS0: wr_data_mux_bus: 5 ticks, 25 ns (was 8 ticks) 25 ns [ 1.608154] GPMC CS0: wr_access : 0 ticks, 0 ns (was 23 ticks) 0 ns [ 1.615386] GPMC CS0 CLK period is 5 ns (div 1) [ 1.625122] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf009e442 [ 1.633178] Internal error: : 1008 [#1] ARM [ 1.637573] Modules linked in: [ 1.640777] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc1-n9xx-los.git-5318619-00006-g4baa700-dirty #26 [ 1.651123] task: ef04c000 ti: ef050000 task.ti: ef050000 [ 1.656799] PC is at gpmc_onenand_setup+0x98/0x1e0 [ 1.661865] LR is at gpmc_cs_set_timings+0x494/0x5a4 [ 1.667083] pc : [<c002e040>] lr : [<c001f384>] psr: 60000113 [ 1.667083] sp : ef051d10 ip : ef051ce0 fp : ef051d94 [ 1.679138] r10: c0caaf60 r9 : ef050000 r8 : ef18b32c [ 1.684631] r7 : f0080000 r6 : c0caaf60 r5 : 00000000 r4 : f009e400 [ 1.691497] r3 : f009e442 r2 : 80050000 r1 : 00000014 r0 : 00000000 [ 1.698333] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 1.706024] Control: 10c5387d Table: af290019 DAC: 00000015 [ 1.712066] Process swapper (pid: 1, stack limit = 0xef050240) [ 1.718200] Stack: (0xef051d10 to 0xef052000) [ 1.722778] 1d00: 00004000 00001402 00000000 00000005 [ 1.731384] 1d20: 00000047 00000000 0000000f 0000000f 00000000 00000028 0000000f 00000005 [ 1.739990] 1d40: 00000000 00000000 00000014 00000014 00000000 00000000 00000000 00000000 [ 1.748596] 1d60: 00000000 00000019 00000000 00000000 ef18b000 ef099c50 c0c8cb30 00000000 [ 1.757171] 1d80: c0488074 c048f868 ef051dcc ef051d98 c024447c c002dfb4 00000000 c048f868 [ 1.765777] 1da0: 00000000 00000000 c010e4a4 c0dbbb7c c0c8cb40 00000000 c0ca2500 c0488074 [ 1.774383] 1dc0: ef051ddc ef051dd0 c01fd508 c0244370 ef051dfc ef051de0 c01fc204 c01fd4f4 [ 1.782989] 1de0: c0c8cb40 c0ca2500 c0c8cb74 00000000 ef051e1c ef051e00 c01fc3b0 c01fc104 [ 1.791595] 1e00: ef0983bc 00000000 c0ca2500 c01fc31c ef051e44 ef051e20 c01fa794 c01fc328 [ 1.800201] 1e20: ef03634c ef0983b0 ef27d534 c0ca2500 ef27d500 c0c9a2f8 ef051e54 ef051e48 [ 1.808807] 1e40: c01fbcfc c01fa744 ef051e84 ef051e58 c01fb838 c01fbce4 c0411df8 c0caa040 [ 1.817413] 1e60: ef051e84 c0ca2500 00000006 c0caa040 00000066 c0488074 ef051e9c ef051e88 [ 1.825988] 1e80: c01fca30 c01fb768 c04975b8 00000006 ef051eac ef051ea0 c01fd728 c01fc9bc [ 1.834594] 1ea0: ef051ebc ef051eb0 c048808c c01fd6e4 ef051f4c ef051ec0 c0008888 c0488080 [ 1.843200] 1ec0: 0000006f c046bae8 00000000 00000000 ef051efc ef051ee0 ef051f04 ef051ee8 [ 1.851806] 1ee0: c046d400 c0181218 c046d410 c18da8d5 c036a8e4 00000066 ef051f4c ef051f08 [ 1.860412] 1f00: c004b9a8 c046d41c c048f840 00000006 00000006 c046b488 00000000 c043ec08 [ 1.869018] 1f20: ef051f4c c04975b8 00000006 c0caa040 00000066 c046d410 c048f85c c048f868 [ 1.877593] 1f40: ef051f94 ef051f50 c046db8c c00087a0 00000006 00000006 c046d410 ffffffff [ 1.886199] 1f60: ffffffff ffffffff ffffffff 00000000 c0348fd0 00000000 00000000 00000000 [ 1.894805] 1f80: 00000000 00000000 ef051fac ef051f98 c0348fe0 c046daa8 00000000 00000000 [ 1.903411] 1fa0: 00000000 ef051fb0 c000e7f8 c0348fdc 00000000 00000000 00000000 00000000 [ 1.912017] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1.920623] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff [ 1.929199] Backtrace: [ 1.931793] [<c002dfa8>] (gpmc_onenand_setup+0x0/0x1e0) from [<c024447c>] (omap2_onenand_probe+0x118/0x49c) [ 1.942047] [<c0244364>] (omap2_onenand_probe+0x0/0x49c) from [<c01fd508>] (platform_drv_probe+0x20/0x24) [ 1.952117] r8:c0488074 r7:c0ca2500 r6:00000000 r5:c0c8cb40 r4:c0dbbb7c [ 1.959197] [<c01fd4e8>] (platform_drv_probe+0x0/0x24) from [<c01fc204>] (driver_probe_device+0x10c/0x224) [ 1.969360] [<c01fc0f8>] (driver_probe_device+0x0/0x224) from [<c01fc3b0>] (__driver_attach+0x94/0x98) [ 1.979125] r7:00000000 r6:c0c8cb74 r5:c0ca2500 r4:c0c8cb40 [ 1.985107] [<c01fc31c>] (__driver_attach+0x0/0x98) from [<c01fa794>] (bus_for_each_dev+0x5c/0x90) [ 1.994506] r6:c01fc31c r5:c0ca2500 r4:00000000 r3:ef0983bc [ 2.000488] [<c01fa738>] (bus_for_each_dev+0x0/0x90) from [<c01fbcfc>] (driver_attach+0x24/0x28) [ 2.009735] r6:c0c9a2f8 r5:ef27d500 r4:c0ca2500 [ 2.014587] [<c01fbcd8>] (driver_attach+0x0/0x28) from [<c01fb838>] (bus_add_driver+0xdc/0x260) [ 2.023742] [<c01fb75c>] (bus_add_driver+0x0/0x260) from [<c01fca30>] (driver_register+0x80/0xfc) [ 2.033081] r8:c0488074 r7:00000066 r6:c0caa040 r5:00000006 r4:c0ca2500 [ 2.040161] [<c01fc9b0>] (driver_register+0x0/0xfc) from [<c01fd728>] (__platform_driver_register+0x50/0x64) [ 2.050476] r5:00000006 r4:c04975b8 [ 2.054260] [<c01fd6d8>] (__platform_driver_register+0x0/0x64) from [<c048808c>] (omap2_onenand_driver_init+0x18/0x20) [ 2.065490] [<c0488074>] (omap2_onenand_driver_init+0x0/0x20) from [<c0008888>] (do_one_initcall+0xf4/0x150) [ 2.075836] [<c0008794>] (do_one_initcall+0x0/0x150) from [<c046db8c>] (kernel_init_freeable+0xf0/0x1b4) [ 2.085815] [<c046da9c>] (kernel_init_freeable+0x0/0x1b4) from [<c0348fe0>] (kernel_init+0x10/0xec) [ 2.095336] [<c0348fd0>] (kernel_init+0x0/0xec) from [<c000e7f8>] (ret_from_fork+0x14/0x3c) [ 2.104125] r4:00000000 r3:00000000 [ 2.107879] Code: ebffc3ae e2505000 ba00002e e2843042 (e1d320b0) [ 2.114318] ---[ end trace b8ee3e3e5e002451 ]--- Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> --- arch/arm/mach-omap2/gpmc-onenand.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)