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2013-05-09ARM: imx: compile fix for hotplug.cShawn Guo1-0/+1
Commit bca7a5a (ARM: cpu hotplug: remove majority of cache flushing from platforms) removes include of <asm/cacheflush.h> and hence discovers a few indirect inclusion and declaration problems as below. CC arch/arm/mach-imx/hotplug.o In file included from arch/arm/mach-imx/hotplug.c:16:0: arch/arm/mach-imx/common.h:100:29: warning: ‘struct pt_regs’ declared inside parameter list [enabled by default] arch/arm/mach-imx/common.h:100:29: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] arch/arm/mach-imx/common.h:101:29: warning: ‘struct pt_regs’ declared inside parameter list [enabled by default] arch/arm/mach-imx/hotplug.c: In function ‘imx_cpu_die’: arch/arm/mach-imx/hotplug.c:53:2: error: implicit declaration of function ‘cpu_do_idle’ [-Werror=implicit-function-declaration] arch/arm/mach-imx/hotplug.c: In function ‘imx_cpu_kill’: arch/arm/mach-imx/hotplug.c:58:26: error: ‘jiffies’ undeclared (first use in this function) arch/arm/mach-imx/hotplug.c:58:26: note: each undeclared identifier is reported only once for each function it appears in arch/arm/mach-imx/hotplug.c:58:2: error: implicit declaration of function ‘msecs_to_jiffies’ [-Werror=implicit-function-declaration] arch/arm/mach-imx/hotplug.c:61:3: error: implicit declaration of function ‘time_after’ [-Werror=implicit-function-declaration] Fix them by adding the needed inclusion and declaration. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-12ARM i.MX6q: export imx6q_revisionPhilipp Zabel1-0/+1
So it can be used in clk-imx6q.c for revision dependent clock tree setup. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12ARM: imx: enable RBC to support anatop LPM modeAnson Huang1-0/+2
RBC is to control whether some ANATOP sub modules can enter lpm mode when SOC is into STOP mode, if RBC is enabled and PMIC_VSTBY_REQ is set, ANATOP will have below behaviors: 1. Digital LDOs(CORE, SOC and PU) are bypassed; 2. Analog LDOs(1P1, 2P5, 3P0) are disabled; As the 2P5 is necessary for DRAM IO pre-drive in STOP mode, so we need to enable weak 2P5 in STOP mode when 2P5 LDO is disabled. For RBC settings, there are some rules as below due to hardware design: 1. All interrupts must be masked during operating RBC registers; 2. At least 2 CKIL(32K) cycles is needed after the RBC setting is changed. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12ARM: imx: enable anatop suspend/resumeAnson Huang1-1/+6
Anatop module have sereval configurations for user to reduce the power consumption in suspend, provide suspend/resume interface for further use and enable fet_odrive to reduce CORE LDO leakage during suspend. As we have a common anatop file, remove all the operations of anatop module in other files, use anatop interfaces to do that. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-12Merge tag 'imx-cleanup-3.10' into imx/socShawn Guo1-3/+0
The imx cleanup for 3.10: * Clean up a couple of unneeded function declarations * Remove imx specific cpufreq driver as generic cpufreq-cpu0 works well as the replacement * Remove platform ahci support * Clean up unused ARCH/MACH Kconfig symbols * Remove a couple of unused files
2013-04-01ARM: imx: remove pl310_get_save_ptr() declarationShawn Guo1-1/+0
Commit a1f1c7e (arm/imx6q: add suspend/resume support) added declaration for a non-existing function pl310_get_save_ptr() by mistake. Remove it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01ARM: imx: remove duplicated function declarationShawn Guo1-2/+0
Commit 13eed98 (arm/imx6q: add device tree machine support) added duplicated function declaration for imx_enable_cpu() and imx_set_cpu_jump(). Remove them. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-26ARM: imx: fix sync issue between imx_cpu_die and imx_cpu_killShawn Guo1-0/+2
There is a sync issue with hotplug operation. It's possible that when imx_cpu_kill gets running on primary core, the imx_cpu_die execution on the core which is to be killed hasn't been finished yet. The problem will very likely be hit when running suspend without no_console_suspend setting on kernel cmdline. It uses cpu jumping argument register to sync imx_cpu_die and imx_cpu_kill. The register will be set in imx_cpu_die and imx_cpu_kill will wait for the register being cleared to actually kill the cpu. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: <stable@vger.kernel.org>
2013-02-04Merge tag 'v3.8-rc6' into next/socOlof Johansson1-0/+1
Linux 3.8-rc6
2013-02-04Merge tag 'imx6q-cpudile-3.9' of ↵Olof Johansson1-11/+3
git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc From Shawn Guo: imx6q cpuidle support for 3.9 - It's based on imx-cleanup-3.9 to avoid conflicts. * tag 'imx6q-cpudile-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: imx6q: support WAIT mode using cpuidle ARM: imx: move imx6q_cpuidle_driver into a separate file ARM: imx: mask gpc interrupts initially ARM: imx: return zero in case next event gets a large increment ARM: imx: Remove mx508 support ARM: imx: Remove mach-mx51_3ds board ARM: imx: use debug_ll_io_init() for imx6q ARM: imx: remove unused imx6q_clock_map_io() ARM: mach-imx: Kconfig: Do not select Babbage for MACH_IMX51_DT Signed-off-by: Olof Johansson <olof@lixom.net> Still, two delete/change conflicts caused by imx/cleanup: arch/arm/mach-imx/mach-mx50_rdp.c arch/arm/mach-imx/mach-mx51_3ds.c
2013-01-30ARM: imx6q: support WAIT mode using cpuidleShawn Guo1-0/+3
Add WAIT mode (ARM core clock gating) support to imx6q cpuidle driver. As WAIT mode is broken on imx6q TO 1.0 and 1.1, it only enables the support for revision 1.2 with chicken bit set. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29ARM: imx: Remove mx508 supportFabio Estevam1-5/+0
Only mx508 based board is mach-mx50_rdp and it has been marked as BROKEN for several releases. mx508 currently lacks clock support. In case someone needs to add mx508 support back, then the recommended approach is to use device tree. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29ARM: imx: use debug_ll_io_init() for imx6qShawn Guo1-5/+0
Use debug_ll_io_init() to map low level debug port for imx6q, so that arch/arm/mach-imx/lluart.c can be removed. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-29ARM: imx: remove unused imx6q_clock_map_io()Shawn Guo1-1/+0
imx6q_clock_map_io() becomes an empty function since imx6q clock driver is moved to common clock framework. It's used nowhere now. Remove it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-14ARM: imx: disable cpu in .cpu_kill hookShawn Guo1-0/+1
It's buggy to disable the cpu that is being hot-unplugged in .cpu_die hook which runs on the cpu itself. Instead, it should be done in .cpu_kill which runs on the thread (another cpu) that asks for shutting down the cpu. Move imx_enable_cpu(cpu, false) call into .cpu_kill hook, and leave the cpu to be hot-unplugged in WFI within .cpu_die, so that we can get a more stable cpu hot-plug operation. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-12ARM: remove mach .handle_irq for GIC usersRob Herring1-1/+0
Now that the GIC initialization sets up the handle_arch_irq pointer, we can remove it for all machines and make it static. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Stephen Warren <swarren@nvidia.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-11-12ARM i.MX25: Add devicetree supportSascha Hauer1-0/+1
This adds a i.MX25 dt machine descriptor and changes the clock support to optionally initialize from dt. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-10-15ARM: imx: call mxc_device_init() in soc specific functionShawn Guo1-0/+1
mxc_device_init() is a core_initcall function used to register devices for mxc_aips_bus and mxc_ahb_bus, which are needed by gpio and dma device registration. Instead of being a core_initcall function, we have it called in soc specific initialization function before gpio and dma devices get registered, so that it will not be called for other platforms when we enable multi-platform support for imx. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-10-15ARM: imx: include common.h rather than mach/common.hShawn Guo1-0/+162
Rename mach-imx/include/mach/common.h to mach-imx/common.h and update all users to include common.h rather than mach/common.h. It also removes an unneeded inclusion to common.h in mach-imx/devices/devices.c. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
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