linux-kernel - [PATCH v4 0/4] Exynos 5410 Dual cluster support

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Message-id: <1385456288-20398-1-git-send-email-v.tyrtov@samsung.com>
Date:	Tue, 26 Nov 2013 12:58:04 +0400
From:	Vyacheslav Tyrtov <v.tyrtov@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Ben Dooks <ben-linux@...ff.org>,
	Mike Turquette <mturquette@...aro.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Heiko Stuebner <heiko@...ech.de>,
	Naour Romain <romain.naour@...nwide.fr>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	Tarek Dakhran <t.dakhran@...sung.com>,
	Tyrtov Vyacheslav <v.tyrtov@...sung.com>, Dave.Martin@....com,
	nicolas.pitre@...aro.org, tomasz.figa@...il.com
Subject: [PATCH v4 0/4] Exynos 5410 Dual cluster support

The series of patches represent support of Exynos 5410 SoC

The Exynos 5410 is the first Samsung SoC based on bigLITTLE architecture
Patches allow all 8 CPU cores (4 x A7 and 4 x A15) to run at the same time

Patches add new platform description, support of clock controller,
dual cluster support and device tree for Exynos 5410

Has been build on v3.13-rc1.
Has been tested on Exynos 5410 reference board (exynos_defconfig).

Thanks for all your comments to Tomasz Figa, Dave Martin and Nicolas Pitre.

Vyacheslav.


Changelog:

v4:
	In arch/arm/mach-exynos/edcs.c
1. Renamed all exynos_ prefixes to edcs_.
2. Reworked edcs_core_power_up/down functions.
3. Removed exynos_core_power_control function.
4. Added this_core_to_pcpu function.
5. Added core_power_state function which detects if cpu is being reset.
6. Replaced cache flush sequences with v7_exit_coherency_flush().
7. exynos_core_power_down moved to lock protected area.
8. edcs_power_down_finish implemented.
	In Documentation/devicetree/bindings/clock/exynos5410-clock.txt
1. External clocks documented.
	In arch/arm/boot/dts/exynos5410-smdk5410.dts
1. oscclk node corrected according to ePAPR recommendation.
	In arch/arm/boot/dts/exynos5410.dtsi
1. mct@...C0000 node renamed to timer@...C0000.
2. "interrupt-controller" line removed from mct node.
3. mct_map renamed to interrupt_map.
	In arch/arm/mach-exynos/Kconfig
1. some cosmetic corrections.
	In include/dt-bindings/clock/exynos5410.h
1. Unnecessary defines removed.

v3:
	In drivers/clk/samsung/clk-exynos5410.c
1. Fixed rate clock "samsung,clock-oscclk" removed.
	In arch/arm/boot/dts/exynos5410.dtsi
1. In mct node clock CLK_FIN_PLL replaced with generic fixed rate oscclk.
	In arch/arm/boot/dts/exynos5410-smdk5410.dts
1. Fixed rate oscclk clock added.
	In arch/arm/mach-exynos/edcs.c
1. Added write memory barrier in exynos_core_power_control function.
2. __raw_readl/__raw_writel replaced with readl_relaxed/writel_relaxed.
3. #define added for some magic constants.
4. Disabled the GIC CPU interface in exynos_power_down function.

v2:
	In drivers/clk/samsung/clk-exynos5410.c
1. Clock driver converted to use preprocessor macros instead of enums.
   Clock IDs now defined in include/dt-bindings/clock/exynos5410.h.
2. Unused spinlock removed.
3. Function exynos5410_clk_init defined as static.
   Struct exynos5410_fixed_rate_ext_clks defined as static.
   Struct exynos5410_mux_clks defined as static.
   Struct exynos5410_div_clks defined as static.
   Struct exynos5410_gate_clks defined as static.
4. Removed aliases.
5. Pll's magic register offsets defined as preprocessor macros.
6. Redundant check of device_node pointer removed.
	
	In arch/arm/boot/dts/exynos5410.dtsi
1. dwmmcX nodes renamed to mmc.
   dwmmc_X renamed to mmc_X.
   dwmmc status="disabled" field added.
   fifo-depth field moved from arch/arm/boot/dts/exynos5410-smdk5410.dts
2. Blank lines added where necessary.
3. cpu@ suffixes corrected.
4. edcs node removed.
5. Hexadecimal characters case corrected.
6. Clock IDs replaced with preprocessor macros.
	
	In arch/arm/boot/dts/exynos5410-smdk5410.dts
1. status = "okay" field added to mmc nodes.
	
	In arch/arm/mach-exynos/edcs.c
1. "kfs_" prefix replaced with "edcs_"
2. EDCS_CPUS_PER_CLUSTER and EDCS_CLUSTERS defined instead of MCPM's values.
3. Cache handling sequence borrowed from arch/arm/mach-vexpress/tc2_pm.c
4. mcpm_sync_init() call added.
5. power management functions reworked.
	
	Other
1. Documentation/devicetree/bindings/clock/exynos5410-clock.txt corrected.
2. Removed smdk5410_defconfig. Instead SOC_EXYNOS5410 now selects MCPM and
   ARM_CCI in arch/arm/mach-exynos/Kconfig.
3. edcs_status driver removed.

Tarek Dakhran (4):
  ARM: EXYNOS: Add support for EXYNOS5410 SoC
  clk: exynos5410: register clocks using common clock framework
  ARM: dts: Add initial device tree support for EXYNOS5410
  ARM: EXYNOS: add Exynos Dual Cluster Support

 .../devicetree/bindings/clock/exynos5410-clock.txt |  54 ++++
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/exynos5410-smdk5410.dts          |  72 +++++
 arch/arm/boot/dts/exynos5410.dtsi                  | 207 ++++++++++++++
 arch/arm/mach-exynos/Kconfig                       |  12 +
 arch/arm/mach-exynos/Makefile                      |   2 +
 arch/arm/mach-exynos/common.c                      |  18 ++
 arch/arm/mach-exynos/edcs.c                        | 297 +++++++++++++++++++++
 arch/arm/mach-exynos/include/mach/map.h            |   1 +
 arch/arm/mach-exynos/mach-exynos5-dt.c             |   1 +
 arch/arm/plat-samsung/include/plat/cpu.h           |   8 +
 drivers/clk/samsung/Makefile                       |   1 +
 drivers/clk/samsung/clk-exynos5410.c               | 239 +++++++++++++++++
 include/dt-bindings/clock/exynos5410.h             |  32 +++
 14 files changed, 945 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/exynos5410-clock.txt
 create mode 100644 arch/arm/boot/dts/exynos5410-smdk5410.dts
 create mode 100644 arch/arm/boot/dts/exynos5410.dtsi
 create mode 100644 arch/arm/mach-exynos/edcs.c
 create mode 100644 drivers/clk/samsung/clk-exynos5410.c
 create mode 100644 include/dt-bindings/clock/exynos5410.h

-- 
1.8.1.5

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