[PATCH 0/3] ARM: OMAP1/2+: 32k-timer: Add hwmod lookup for 32k-timer
Vaibhav Hiremath
hvaibhav at ti.com
Thu Jan 19 09:28:21 EST 2012
This patch series cleans up the existing 32k-sync timer implementation
without any major code change and adds hwmod lookup for omap2+ devices,
if lookup fails then fall back to gp-timer.
With this, we should be able to support multi-omap boot
including devices with/without 32k-sync timer.
For example, AM33xx device doesn't have 32k-sync timer available,
which breaks multi-omap boot.
This patch-series has been boot tested on AM37xEVM platform, it
would be helpful if somebody help me to validate it on OMAP2
platform.
Background:
==========
In 2010 timeframe 'Fillipe Balbi' had submitted first version
of 32k-sync timer cleanup patches, but it did not made its way
to the mainline.
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg37403.html
Yesterday I had submitted the RFC version patch-series, which was
built on top of earlier cleanup patches from 'Fillipe Balbi'.
http://www.spinics.net/lists/linux-omap/msg63004.html
Based on comments (Thanks to Russell, Marc and Tony) from community
it was clear that, arch_init is not the correct way here.
Vaibhav Hiremath (3):
ARM: OMAP2+: 32k-counter: Use hwmod lookup to check presence of 32k
timer
ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common
header
ARM: OMAP2+: hwmod data: Add 32k-sync timer data to hwmod database
arch/arm/mach-omap2/omap_hwmod_2420_data.c | 53 ++++++++++++++++++
arch/arm/mach-omap2/omap_hwmod_2430_data.c | 52 +++++++++++++++++
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 51 +++++++++++++++++
arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 2 +-
arch/arm/mach-omap2/prcm-common.h | 4 +
arch/arm/mach-omap2/timer.c | 27 ++++-----
arch/arm/plat-omap/counter_32k.c | 83 ++++++++++++++-------------
7 files changed, 215 insertions(+), 57 deletions(-)
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