linux_dsm_epyc7002/arch
Sekhar Nori 683b1e1f0e davinci: DA850/OMAP-L138: add frequency scaling support
Adds basic frequency scaling support for DA850/OMAP-L138.

Currently, frequency scaling only on PLL0 is supported. No scaling of PLL1
as yet.

Peripherals like MMC/SD which have a clock input synchronous with
ARM clock will not work well since the clock will change behind their backs.
Support for notification to such devices to adjust themselves to the
new frequency will be added in later patches. Current defconfigs keep
CPUFreq disabled so it will not affect normal operation.

The OPP defintions assume clock input of 24MHz to the SoC. This is inline
with hardcoding of input frequency in the <soc>.c files. At some point
this will need to move into board dependent code as new boards appear with
a different reference clock.

Tested on OMAP-L138 EVM with ondemand governer and a shell script to
vary processor load.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-25 10:21:29 -08:00
..
alpha Merge branch 'hostprogs-wmissing-prototypes' of git://git.kernel.org/pub/scm/linux/kernel/git/josh/linux-misc 2009-11-17 09:14:49 -08:00
arm davinci: DA850/OMAP-L138: add frequency scaling support 2009-11-25 10:21:29 -08:00
avr32 at91: at91sam9g45 family: identify several chip versions 2009-11-03 18:42:31 +01:00
blackfin headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
cris const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
frv frv: fix check on unsigned in do_signal() 2009-10-29 07:39:32 -07:00
h8300 h8300: Cleanup linker script using new linker script macros. 2009-09-24 17:16:22 -07:00
ia64 Revert "[IA64] fix percpu warnings" 2009-11-02 09:23:08 -08:00
m32r m32r: fix arch/m32r/boot/compressed/Makefile 2009-11-09 09:00:50 +09:00
m68k tty: Mark generic_serial users as BROKEN 2009-10-30 14:43:12 -07:00
m68knommu m68knommu: fix rename of pt_regs offset defines breakage 2009-09-30 10:06:07 +10:00
microblaze microblaze: Clear sticky FSR register after saving it to func parametr 2009-10-05 11:37:47 +02:00
mips MIPS: SMTC: Fix lockup in smtc_distribute_timer 2009-11-13 18:10:38 +01:00
mn10300 mn10300: fix kernel build failures when using gcc-4.x 2009-10-01 16:11:12 -07:00
parisc fcntl: Use consistent values for F_[GS]ETOWN_EX 2009-11-17 09:13:43 -08:00
powerpc Merge branch 'hostprogs-wmissing-prototypes' of git://git.kernel.org/pub/scm/linux/kernel/git/josh/linux-misc 2009-11-17 09:14:49 -08:00
s390 [S390] s390: fix single stepping on svc0 2009-11-13 15:45:03 +01:00
score
sh sh: Fixup last users of irq_chip->typename 2009-11-18 10:50:22 +09:00
sparc Merge branch 'hostprogs-wmissing-prototypes' of git://git.kernel.org/pub/scm/linux/kernel/git/josh/linux-misc 2009-11-17 09:14:49 -08:00
um headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
x86 [CPUFREQ] speedstep-ich: fix error caused by 394122ab14 2009-11-17 23:15:04 -05:00
xtensa headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
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