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Commit d91eeb0 "ARM: tegra: emc: device tree support" modified the EMC driver to create an EMC table from existing register settings when none was provided through platform data or device tree. This code wrote the wrong clock rate into the table; the actual rate in Hz, rather than the expected half-rate in KHz. This caused the BUG_ON in tegra2_emc_clk_round_rate() to fire, since that enormous rate could not be generated. Fixes: [ 2.425921] kernel BUG at arch/arm/mach-tegra/tegra2_clocks.c:1158! ... [ 2.618766] [<c001c0e8>] (tegra2_emc_clk_round_rate+0x58/0x70) from [<c00198b4>] (clk_round_rate+0x48/0x68) [ 2.628494] [<c00198b4>] (clk_round_rate+0x48/0x68) from [<c0019cc0>] (clk_set_rate_locked+0x40/0x68) [ 2.637707] [<c0019cc0>] (clk_set_rate_locked+0x40/0x68) from [<c0019d10>] (clk_set_rate+0x28/0x40) [ 2.646754] [<c0019d10>] (clk_set_rate+0x28/0x40) from [<c001ffc8>] (tegra_update_cpu_speed+0x54/0x144) [ 2.656144] [<c001ffc8>] (tegra_update_cpu_speed+0x54/0x144) from [<c002016c>] (tegra_target+0xb4/0xe0) [ 2.665538] [<c002016c>] (tegra_target+0xb4/0xe0) from [<c01a96c0>] (__cpufreq_driver_target+0x88/0xa4) [ 2.674931] [<c01a96c0>] (__cpufreq_driver_target+0x88/0xa4) from [<c01ac9d0>] (dbs_check_cpu+0x324/0x340) [ 2.684582] [<c01ac9d0>] (dbs_check_cpu+0x324/0x340) from [<c01aca40>] (do_dbs_timer+0x54/0xf4) [ 2.693277] [<c01aca40>] (do_dbs_timer+0x54/0xf4) from [<c00369a8>] (process_one_work+0x1d4/0x320) [ 2.702225] [<c00369a8>] (process_one_work+0x1d4/0x320) from [<c0036f34>] (worker_thread+0x134/0x230) [ 2.711437] [<c0036f34>] (worker_thread+0x134/0x230) from [<c003add0>] (kthread+0x80/0x8c) [ 2.719700] [<c003add0>] (kthread+0x80/0x8c) from [<c000ebf4>] (kernel_thread_exit+0x0/0x8) Reported-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Stephen Warren <swarren@nvidia.com> [olof: fixed calculation of printed values] Signed-off-by: Olof Johansson <olof@lixom.net> |
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| .. | ||
| include/mach | ||
| apbio.c | ||
| apbio.h | ||
| board-dt-tegra20.c | ||
| board-dt-tegra30.c | ||
| board-harmony-pcie.c | ||
| board-harmony-pinmux.c | ||
| board-harmony-power.c | ||
| board-harmony.c | ||
| board-harmony.h | ||
| board-paz00-pinmux.c | ||
| board-paz00.c | ||
| board-paz00.h | ||
| board-pinmux.c | ||
| board-pinmux.h | ||
| board-seaboard-pinmux.c | ||
| board-seaboard.c | ||
| board-seaboard.h | ||
| board-trimslice-pinmux.c | ||
| board-trimslice.c | ||
| board-trimslice.h | ||
| board.h | ||
| clock.c | ||
| clock.h | ||
| common.c | ||
| cpu-tegra.c | ||
| devices.c | ||
| devices.h | ||
| dma.c | ||
| fuse.c | ||
| fuse.h | ||
| gpio-names.h | ||
| headsmp.S | ||
| hotplug.c | ||
| io.c | ||
| irq.c | ||
| Kconfig | ||
| localtimer.c | ||
| Makefile | ||
| Makefile.boot | ||
| pcie.c | ||
| pinmux-tegra20-tables.c | ||
| pinmux-tegra30-tables.c | ||
| pinmux.c | ||
| platsmp.c | ||
| powergate.c | ||
| tegra2_clocks.c | ||
| tegra2_emc.c | ||
| tegra2_emc.h | ||
| timer.c | ||
| usb_phy.c | ||