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path: root/arch/arm/mach-omap2/cm_common.c
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2017-12-21Merge tag 'omap-for-v4.16/dt-clk-signed' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt Pull "Clock related dts changes for omaps for v4.16 merge window" from Tony Lindgren: This branch contains a series of dts changes from Tero Kristo to start using clkctrl clocks. Note that this branch is based on a merge of omap-for-v4.16/soc-signed and an immutable commit from Tero Kristo fe7020e64f04 ("clk: ti: omap4: clkctrl data fixes for opt-clocks") that is also in clk-next. * tag 'omap-for-v4.16/dt-clk-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (57 commits) ARM: dts: dm816x: add clkctrl nodes ARM: dts: dm814x: add clkctrl nodes ARM: dts: am43xx: add clkctrl nodes ARM: dts: am33xx: add clkctrl nodes ARM: dts: dra7: add clkctrl nodes ARM: dts: omap5: add clkctrl nodes ARM: dts: omap4: add clkctrl nodes ARM: dts: dm816x: add bus functionality to base PRCM node ARM: dts: am43xx: add bus functionality to base PRCM node ARM: dts: am33xx: add bus functionality to base PRCM node ARM: dts: dra7: add bus functionality to base PRCM nodes ARM: dts: omap4: add bus functionality to base PRCM nodes ARM: dts: omap5: add bus functionality to base PRCM nodes ARM: dts: dm816x: add fck under timers1/2 ARM: dts: dm814x: add fck under timers1/2 ARM: dts: dra7: add fck under timer1 ARM: dts: am43xx: add fck under timers1/2 ARM: dts: am33xx: add fck under timers1/2 ARM: dts: omap4: add fck under timer1 ARM: dts: omap5: add fck under timer1 ...
2017-12-11Merge branch '4.15-rc1-clkctrl-mach-omap2' of ↵Tony Lindgren
https://github.com/t-kristo/linux-pm into omap-for-v4.16/soc
2017-12-11ARM: OMAP2+: CM: make some pointers and function arguments as constBhumika Goyal
Make the pointer cm_ll_data of type cm_ll_data as const as it does not modify the fields of the structure it points too. After this change, make the argument of cm_register function as const as it is used to initialise cm_ll_data or used inside an if condition. Make the pointer argument of cm_unregister function as const as it is only used inside an if condition. Add const to the function prototypes too. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-04ARM: OMAP2+: CM: add support for getting phys address for a clkctrl registerTero Kristo
Add a new CM API for fetching the physical address of a hwmod clkctrl register. This is needed to map omap hwmods against clkctrl clocks, the existing support for clkdm address translation was not sufficient to handle the mutant cases where the clockdomain offset is completely off from the clkctrl ones. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2017-10-30ARM: OMAP2/3: CM: fix cm_split_idlest functionalityTero Kristo
cm_split_idlest doesn't take the CM base offset into account right now, causing it to read reserved registers which show idlestatus as active always. This will cause the wait_module_ready functionality to be effectively an expensive NOP, which will cause problems if the module hasn't really activated during its execution. Fix by adding the CM offset into the calculation so the wait_module_ready will access correct register. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reported-by: Filip Matijevic <filip.matijevic.pz@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06ARM: OMAP2+: PRCM: store also physical addresses for instancesTero Kristo
In some cases the physical address info is needed, so store this under the existing cm*_base, prm_base and prcm_mpu_base variables. These are converted now to structs that contain both virtual and physical address base for the instance. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-08clk: ti: convert to use proper register definition for all accessesTero Kristo
Currently, TI clock driver uses an encapsulated struct that is cast into a void pointer to store all register addresses. This can be considered as rather nasty hackery, and prevents from expanding the register address field also. Instead, replace all the code to use proper struct in place for this, which contains all the previously used data. This patch is rather large as it is touching multiple files, but this can't be split up as we need to avoid any boot breakage. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2015-03-31ARM: OMAP2+: clock: add low-level support for regmapTero Kristo
Some of the TI clock providers will be converted to use syscon, thus low-level regmap support is needed for the clock drivers also. This patch adds this support, which can be enabled for individual drivers in later patches. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-03-31ARM: OMAP2+: CM: move SoC specific init calls within a generic APITero Kristo
This gets rid of need for some exported driver APIs, and simplifies the initialization of the CM driver. Done in preparation to make CM a separate driver. The init data is now also passed to the SoC specific implementations, allowing future expansion to add feature flags etc. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-03-27ARM: OMAP2+: CM: determine CM base address from device treeTero Kristo
There is no need to provide the CM base address through a low-level API from the low-level IO init, as this information is available through DT. Re-routed the parsing function to be called from the CM drivers also to simplify the implementation under io.c. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-03-27ARM: OMAP2+: PRCM: split PRCM module init to their own driver filesTero Kristo
Splits the clock related provider module inits under their own driver files. Previously this was done for all modules under the common PRM driver. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-10-27ARM: OMAP2+: CM: add common APIs for cm_module_enable/disableTero Kristo
Adds a generic CM driver API for enabling/disabling modules. The SoC specific implementations are registered through cm_ll_data. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27ARM: OMAP4+/AM33xx: CM: add common API for cm_wait_module_idleTero Kristo
Adds a generic CM driver API for waiting module to enter idle / standby. The SoC specific implementations are registered through cm_ll_data. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27ARM: OMAP2+: CM: add common API for cm_wait_module_readyTero Kristo
This patch consolidates the parameters provided for the SoC specific cm_*_wait_module_ready calls, adds the missing cm_ll_data function pointers and uses the now generic call from the mach-omap2 board code. SoC specific *_wait_module_ready calls are also made static so they can only be accessed through the generic CM driver API only. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-15ARM: OMAP2+: PRCM: cleanup some header includesTero Kristo
Some of the includes are totally unnecessary, remove some others in preparation to make the PRCM its own driver. Signed-off-by: Tero Kristo <t-kristo@ti.com> [paul@pwsan.com: updated to apply; fixed build error on OMAP2xxx-only configs] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12ARM: OMAP2: Fix compillation error in cm_commonPeter Ujfalusi
Fixes the following error: CC arch/arm/mach-omap2/cm_common.o arch/arm/mach-omap2/cm_common.c: In function ‘cm_register’: arch/arm/mach-omap2/cm_common.c:42:11: error: ‘EINVAL’ undeclared (first use in this function) arch/arm/mach-omap2/cm_common.c:42:11: note: each undeclared identifier is reported only once for each function it appears in arch/arm/mach-omap2/cm_common.c:45:11: error: ‘EEXIST’ undeclared (first use in this function) arch/arm/mach-omap2/cm_common.c: In function ‘cm_unregister’: arch/arm/mach-omap2/cm_common.c:66:11: error: ‘EINVAL’ undeclared (first use in this function) make[1]: *** [arch/arm/mach-omap2/cm_common.o] Error 1 make: *** [arch/arm/mach-omap2] Error 2 Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-08ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setupPaul Walmsley
Split omap2_set_globals_prcm() into PRM, CM, and PRCM_MPU variants, since these are all separate IP blocks. This should make it easier to move the PRM, CM, PRCM_MPU code into drivers/ in future patchsets. At this point arch/arm/plat-omap/include/plat/prcm.h is empty; a subsequent patch will remove it, and remove the #include from all the files that #include it. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use ↵Paul Walmsley
SoC-independent CM functions Convert the OMAP clock code's _omap2_module_wait_ready() to use SoC-independent CM functions that are provided by the CM code, rather than using a deprecated function from mach-omap2/prcm.c. This facilitates the future conversion of the CM code to a driver, and also removes a mach-omap2/prcm.c user. mach-omap2/prcm.c will be removed by a subsequent patch. Some modules have IDLEST registers that aren't in the CM module, such as the AM3517 IDLEST bits. So we also need a fallback function for these non-CM odd cases. Create a temporary one in mach-omap2/clock.c, intended to exist until the SCM drivers are ready. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-10-21ARM: OMAP2+: CM: prepare for use of cm_ll_data function pointersPaul Walmsley
There are several CM operations which behave similarly across OMAP2+ SoCs, but which have slight differences in their underlying implementations. This patch creates the support code for this function pointer registration process. No function pointers are included yet, but a subsequent patch will create these for the module IDLEST registers. This patch allows other code to use CM-provided data and operations without needing to know which SoC is currently in use. A further description of the concept is provided in the patch entitled "ARM: OMAP2+: PRM: prepare for use of prm_ll_data function pointers". Signed-off-by: Paul Walmsley <paul@pwsan.com>
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