Revision 4d594dd3028ba8cdfcbd854bde3811a1ee4e36d7 authored by Yuvaraj Kumar C D on 18 September 2013, 10:11:53 UTC, committed by Olof Johansson on 13 October 2013, 16:33:54 UTC
Without the "clock-frequency" property in arch timer node, could able
to see the below crash dump.

[<c0014e28>] (unwind_backtrace+0x0/0xf4) from [<c0011808>] (show_stack+0x10/0x14)
[<c0011808>] (show_stack+0x10/0x14) from [<c036ac1c>] (dump_stack+0x7c/0xb0)
[<c036ac1c>] (dump_stack+0x7c/0xb0) from [<c01ab760>] (Ldiv0_64+0x8/0x18)
[<c01ab760>] (Ldiv0_64+0x8/0x18) from [<c0062f60>] (clockevents_config.part.2+0x1c/0x74)
[<c0062f60>] (clockevents_config.part.2+0x1c/0x74) from [<c0062fd8>] (clockevents_config_and_register+0x20/0x2c)
[<c0062fd8>] (clockevents_config_and_register+0x20/0x2c) from [<c02b8e8c>] (arch_timer_setup+0xa8/0x134)
[<c02b8e8c>] (arch_timer_setup+0xa8/0x134) from [<c04b47b4>] (arch_timer_init+0x1f4/0x24c)
[<c04b47b4>] (arch_timer_init+0x1f4/0x24c) from [<c04b40d8>] (clocksource_of_init+0x34/0x58)
[<c04b40d8>] (clocksource_of_init+0x34/0x58) from [<c049ed8c>] (time_init+0x20/0x2c)
[<c049ed8c>] (time_init+0x20/0x2c) from [<c049b95c>] (start_kernel+0x1e0/0x39c)

THis is because the Exynos u-boot, for example on the Chromebooks, doesn't set
up the CNTFRQ register as expected by arch_timer. Instead, we have to specify
the frequency in the device tree like this.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
[olof: Changed subject, added comment, elaborated on commit message]
Signed-off-by: Olof Johansson <olof@lixom.net>
1 parent 98ead6e
History
File Mode Size
partitions
Kconfig -rw-r--r-- 3.6 KB
Kconfig.iosched -rw-r--r-- 1.6 KB
Makefile -rw-r--r-- 773 bytes
blk-cgroup.c -rw-r--r-- 28.8 KB
blk-cgroup.h -rw-r--r-- 16.5 KB
blk-core.c -rw-r--r-- 86.3 KB
blk-exec.c -rw-r--r-- 3.3 KB
blk-flush.c -rw-r--r-- 13.1 KB
blk-integrity.c -rw-r--r-- 11.6 KB
blk-ioc.c -rw-r--r-- 10.3 KB
blk-iopoll.c -rw-r--r-- 5.9 KB
blk-lib.c -rw-r--r-- 7.1 KB
blk-map.c -rw-r--r-- 8.2 KB
blk-merge.c -rw-r--r-- 12.7 KB
blk-settings.c -rw-r--r-- 26.3 KB
blk-softirq.c -rw-r--r-- 4.5 KB
blk-sysfs.c -rw-r--r-- 15.8 KB
blk-tag.c -rw-r--r-- 9.8 KB
blk-throttle.c -rw-r--r-- 45.8 KB
blk-timeout.c -rw-r--r-- 4.8 KB
blk.h -rw-r--r-- 7.1 KB
bsg-lib.c -rw-r--r-- 6.0 KB
bsg.c -rw-r--r-- 23.6 KB
cfq-iosched.c -rw-r--r-- 119.7 KB
cmdline-parser.c -rw-r--r-- 4.8 KB
compat_ioctl.c -rw-r--r-- 20.8 KB
deadline-iosched.c -rw-r--r-- 11.3 KB
elevator.c -rw-r--r-- 23.7 KB
genhd.c -rw-r--r-- 44.1 KB
ioctl.c -rw-r--r-- 10.7 KB
noop-iosched.c -rw-r--r-- 2.7 KB
partition-generic.c -rw-r--r-- 14.0 KB
scsi_ioctl.c -rw-r--r-- 19.6 KB

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