Commit Graph

23 Commits

Author SHA1 Message Date
Pankaj Dubey 8cfc7fdd33 ARM: EXYNOS: move restart code into pmu driver
Let's register restart handler from PMU driver for restart
functionality. So that we can remove restart hooks from
machine specific file, and thus moving ahead when PMU moved
to driver folder, this functionality can be reused for ARM64
based Exynos SoC's.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-22 23:10:23 +09:00
Bartlomiej Zolnierkiewicz 8fcc774fc7 ARM: EXYNOS: add exynos3250 PMU support
This patch prepares the PMU code for the future:
- suspend/resume (S2R) support
- cpuidle AFTR/W-AFTR modes support
on Exynos3250.

Cc: Vikas Sajjan <vikas.sajjan@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[kgene.kim@samsung.com: fixed coding style]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-22 23:03:40 +09:00
Abhilash Kesavan af2e0a0754 ARM: EXYNOS: Add PMU support for exynos5420
Adds initial PMU settings for exynos5420. This is required for
future S2R and Switching support.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-21 22:49:45 +09:00
Pankaj Dubey 6b7bfd8292 ARM: EXYNOS: Move PMU specific definitions from common.h
This patch moves PMU specific definitions into a new file
as exynos-pmu.h.
This will help in reducing dependency of common.h in pmu.c.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-21 22:49:44 +09:00
Pankaj Dubey 14fc8b93d4 ARM: EXYNOS: Add platform driver support for Exynos PMU
This patch modifies Exynos Power Management Unit (PMU) initialization
implementation in following way:

- Added platform driver support for Exynos PMU IP.
- Added platform struct exynos_pmu_data to hold platform specific data.
- For each SoC's PMU support now we can add platform data and statically
  bind PMU configuration and SoC specific initialization function.
- Separate each SoC's PMU initialization function and make it as part of
  platform data.
- It also removes uses of soc_is_exynosXYZ().

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-21 22:49:44 +09:00
Kukjin Kim b5d841a2bf Merge branch 'v3.19-next/non-critical-fixes' into v3.19-next/mach-exynos 2014-11-21 22:49:27 +09:00
Pankaj Dubey d4c6c6cf8b ARM: EXYNOS: fix typo in static struct name "exynos5_list_diable_wfi_wfe"
This patch fixes a typo in struct named as "exynos5_list_diable_wfi_wfe"
by making it "exynos5_list_disable_wfi_wfe" which is more meaningful.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-11-07 08:30:33 +09:00
Vikas Sajjan 32ed35ff22 ARM: EXYNOS: Move Disabling of JPEG USE_RETENTION for exynos5250 to pmu.c
Move the Disabling of JPEG USE_RETENTION for exynos5250 to pmu.c to
make way for refactoring of pm.c and to create common functions across
exynos4 and exynos5250.

Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-10-21 00:06:35 +09:00
Pankaj Dubey 2e94ac4289 ARM: EXYNOS: Refactored code for using PMU address via DT
Under "arm/mach-exynos" many files are using PMU register offsets.
Since we have added support for accessing PMU base address via DT,
now we can remove PMU mapping from exynosX_iodesc. Let's convert
all these access using iomapped address.
This will help us in removing static mapping of PMU base address
as well as help in reducing dependency over machine header files.
Thus helping for migration of PMU implementation from machine to
driver folder which can be reused for ARM64 based SoC.

Also as we have removed static mappings from "regs-pmu.h" it does
not need map.h anymore. But "platsmp.c" needed this and till now it
got included indirectly. So lets move header inclusion of
"mach/map.h" from "regs-pmu.h" to "platsmp.c".

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-23 08:20:30 +09:00
Pankaj Dubey 632b98ae8a ARM: EXYNOS: Remove "linux/bug.h" from pmu.c
This patch removes unnecessary header file inclusion from pmu.c.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-07-15 08:40:32 +09:00
Sachin Kamat 4b245edc99 ARM: EXYNOS: Remove unnecessary inclusion of cpu.h
Exynos specific macros and declarations have been moved to
mach-exynos. Inclusion of plat/cpu.h is no more necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-26 04:05:00 +09:00
Kukjin Kim 2857f650d5 ARM: EXYNOS: remove <mach/regs-clock.h> for exynos
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-19 05:21:20 +09:00
Kukjin Kim 65c9a8530b ARM: EXYNOS: local regs-pmu.h header file
This moves regs-pmu.h file into mach-exynos directory.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-19 05:21:14 +09:00
Kukjin Kim e44de221d3 ARM: EXYNOS: remove inclusion <mach/regs-pmu.h> into another headers
This is needed to remove dependency of headers.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-19 05:21:07 +09:00
Daniel Kurtz 53302222de ARM: EXYNOS: Constify data tables for pmu
These tables are all immutable, make them const to save 4416 bytes of RAM.

size arch/arm/mach-exynos/pmu.o
   text	   data	    bss
    848	   4420	      4		// before
   5264	      4	      4		// after

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-12-12 07:07:23 +09:00
Inderpal Singh 0885846188 ARM: EXYNOS5: Fix kernel dump in AFTR idle mode
The kernel crashes while resuming from AFTR idle mode. It happens
because L2 cache was not going into retention state.

This patch configures the USE_RETENTION bit of ARM_L2_OPTION register
so that it does not depend on MANUAL_L2RSTDISABLE_CONTROL of
ARM_COMMON_OPTION register for L2RSTDISABLE signal.

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Tested-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-09 13:22:22 -07:00
Kukjin Kim ccd458c15d ARM: EXYNOS: move mach/pmu.h file into common.h
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-01-10 10:45:17 -08:00
Sachin Kamat 12f081ffee ARM: EXYNOS: Add missing static storage class specifier in pmu.c file
arch/arm/mach-exynos/pmu.c:318:14: warning:
symbol 'exynos5_list_both_cnt_feed' was not declared. Should it be static?
arch/arm/mach-exynos/pmu.c:332:14: warning:
symbol 'exynos5_list_diable_wfi_wfe' was not declared. Should it be static?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 06:46:08 +09:00
Jonghwan Choi 7d896aaceb ARM: EXYNOS: Clear SYS_WDTRESET bit to use watchdog reset
When SYS_WDTRESET is set, watchdog timer reset request
is ignored by power management unit.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-12 16:15:08 +09:00
Jongpill Lee 60e49ca654 ARM: EXYNOS: Support suspend and resume for EXYNOS5250
This patch adds function for suspend and resume of Exynos5250.

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
[kgene.kim@samsung.com: re-worked on top of v3.4-rc7]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-20 03:14:36 +09:00
Jongpill Lee 7d44d2ba1a ARM: EXYNOS: Add PMU table for EXYNOS5250
This patch adds pmu table setting feature for EXYNOS5250.

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
[kgene.kim@samsung.com: re-worked on top of v3.4-rc7]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-20 03:13:17 +09:00
Inderpal Singh 5ddfa8428b ARM: EXYNOS: Support Suspend/Resume for EXYNOS4412
This patch provides the suspend/resume support for EXYNOS4412.

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-15 00:20:09 +09:00
Kukjin Kim 830145796a ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos
The arch/arm/mach-exynos4 directory (CONFIG_ARCH_EXYNOS4) has
made for plaforms based on EXYNOS4 SoCs. But since upcoming
Samsung's SoCs such as EXYNOS5 (ARM Cortex A15) can reuse most
codes in current mach-exynos4, one mach-exynos directory will
be used for them.

This patch changes to CONFIG_ARCH_EXYNOS (arch/arm/mach-exynos)
but keeps original CONFIG_ARCH_EXYNOS4 in mach-exynos/Kconfig to
avoid changing in driver side.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-11-06 13:54:56 +09:00