[PATCH-V2 0/3] ARM: OMAP: Make OMAP clocksource source selection runtime
Vaibhav Hiremath
hvaibhav at ti.com
Fri Mar 30 09:54:12 EDT 2012
Current OMAP code supports couple of clocksource options based
on compilation flag (CONFIG_OMAP_32K_TIMER). The 32KHz sync-timer
and a gptimer which can run on 32KHz or system clock (e.g 38.4 MHz)
This patch series cleans up the existing 32k-sync timer implementation
without any major code change, in order to enable runtime selection between
32k sync-timer and gptimer 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 OMAP1/2
platforms.
Changes from previous submissions:
==================================
Changes from V1:
http://lists.infradead.org/pipermail/linux-arm-kernel/2012-January/081037.html
- Based on Tony's comment, added pbase & size argument to
omap_init_clocksource_32k(), to avoid cpu_is_xxx() check.
- Added commit description based on discussion on list
(Thanks to Santosh here)
- Reorder patch sequence
Vaibhav Hiremath (3):
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
ARM: OMAP: Make OMAP clocksource source selection runtime
arch/arm/mach-omap1/timer32k.c | 6 ++-
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 | 45 ++++++++------
arch/arm/plat-omap/counter_32k.c | 86 ++++++++++++----------------
arch/arm/plat-omap/include/plat/common.h | 2 +-
9 files changed, 229 insertions(+), 72 deletions(-)
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