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* OMAP2/3: PRCM: split OMAP2/3-specific PRCM code into OMAP2/3-specific filesPaul Walmsley2010-12-211-131/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for adding OMAP4-specific PRCM accessor/mutator functions, split the existing OMAP2/3 PRCM code into OMAP2/3-specific files. Most of what was in mach-omap2/{cm,prm}.{c,h} has now been moved into mach-omap2/{cm,prm}2xxx_3xxx.{c,h}, since it was OMAP2xxx/3xxx-specific. This process also requires the #includes in each of these files to be changed to reference the new file name. As part of doing so, add some comments into plat-omap/sram.c and plat-omap/mcbsp.c, which use "sideways includes", to indicate that these users of the PRM/CM includes should not be doing so. Thanks to Felipe Contreras <felipe.contreras@gmail.com> for comments on this patch. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Jarkko Nikula <jhnikula@gmail.com> Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Omar Ramirez Luna <omar.ramirez@ti.com> Acked-by: Omar Ramirez Luna <omar.ramirez@ti.com> Cc: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: Felipe Contreras <felipe.contreras@gmail.com> Cc: Greg Kroah-Hartman <greg@kroah.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com> Tested-by: Rajendra Nayak <rnayak@ti.com> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
* OMAP4: PRCM: reorganize existing OMAP4 PRCM header filesPaul Walmsley2010-12-211-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Split the existing cm44xx.h file into cm1_44xx.h and cm2_44xx.h files so they match their underlying OMAP hardware modules. Add clockdomain offset information. Add header files for the MPU local PRCM, prcm_mpu44xx.h, and for the SCRM, scrm44xx.h. SCRM register offsets still need to be added; TI should do this. Move the "_MOD" macros out of the prcm-common.h header file, into the header file of the hardware module that they belong to. For example, OMAP4430_PRM_*_MOD macros have been moved into the prm44xx.h header. Adjust #includes of all files that used the old PRCM header file names to point to the new filenames. The autogeneration scripts have been updated accordingly. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com> Tested-by: Rajendra Nayak <rnayak@ti.com> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
* OMAP4: hwmod & CM: Implement the omap4_cm_wait_module_ready functionBenoit Cousson2010-05-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | The return of the omap4_cm_wait_module_ready function is checked in order to avoid accessing the sysconfig register if the module is not in the correct state. In that case the _setup will exit without trying to reset using sysconfig. For the moment a warning is printed. A proper management of fclk and module reset will have to be done in order to init correctly the problematic IPs listed below. <4>omap_hwmod: ivahd: cannot be enabled (3) <4>omap_hwmod: iss: cannot be enabled (3) <4>omap_hwmod: tesla: cannot be enabled (3) <4>omap_hwmod: sdma: cannot be enabled (3) <4>omap_hwmod: sl2: cannot be enabled (3) <4>omap_hwmod: sad2d: cannot be enabled (3) <4>omap_hwmod: ducati: cannot be enabled (3) Signed-off-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP: CM: Move MAX_MODULE_READY_TIME to cm.hBenoit Cousson2010-05-201-0/+9
| | | | | | | | | | | The maximum timeout to wait for the PRCM to request that a module exit idle or reach functionnal state is common to OMAP2/3/4 SoCs, so, move it to the chip family-common cm.h include file. Reduce the timeout from 20 ms to 2 ms. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP2+ PRCM: convert remaining PRCM macros to the _SHIFT/_MASK suffixesPaul Walmsley2010-05-201-2/+3
| | | | | | | | | | | Fix all of the remaining PRCM register shift/bitmask macros that did not use the _SHIFT/_MASK suffixes to use them. This makes the use of these macros consistent. It is intended to reduce error, as code can be inspected visually by reviewers to ensure that bitshifts and bitmasks are used in the appropriate places. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@deeprootsystems.com>
* OMAP2/3 clock: Extend find_idlest() to pass back idle state valueRanjith Lohithakshan2010-02-241-0/+3
| | | | | | | | | | | | | | | | Current implementation defines clock idle state indicators based on the cpu information (cpu_is_omap24xx() or cpu_is_omap34xx()) in a system wide manner. This patch extends the find_idlest() function in clkops to pass back the idle state indicator for that clock, thus allowing idle state indicators to be defined on a per clock basis if required. This is specifically needed on AM35xx devices as the new IPSS clocks indicates the idle status (0 is idle, 1 is ready) in a way just opposite to how its handled in OMAP3 (0 is ready, 1 is idle). Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com> [paul@pwsan.com: updated to apply after commit 98c45457 et seq.] Signed-off-by: Paul Walmsley <paul@pwsan.com>
* ARM: OMAP4: PM: Make OMAP3 Clock-domain framework compatible for OMAP4.Abhijit Pagare2010-01-261-2/+3
| | | | | | | | | | | | | | Here the ".clkstctrl_reg" field is added to the clockdomain stucture as the module offsets for OMAP4 do not map one to one for powerdomains and clockdomains as it used to for OMAP3. Hence we need to use absolute addresses to access the control registers. Some of the clock domains have modules falling in the address space of PRM partition. Hence necessitating the use of absolute adresses. Signed-off-by: Abhijit Pagare <abhijitpagare@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Rajendra Nayak <rnayak@ti.com>
* ARM: OMAP4: PM: Add dummy hooks for OMAP4 dpll api'sRajendra Nayak2009-12-111-0/+4
| | | | | | | | | | | | This patch adds dummy hooks for OMAP4 dpll api's. Removes dummy hooks for clkdev api's and enables CLKDEV for OMAP4. Also comments clockdomain calls from within the clock framework as its not supported yet for OMAP4. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
* ARM: OMAP4: PM: Adds CM1/2 register defs for OMAP4Rajendra Nayak2009-12-111-2/+9
| | | | | | | | | | | This patch adds OMAP4 specific CM1 and CM2 module register defs. Autogenerated using a python scripts (gen_cm1_4430_h.py,gen_cm2_4430_h.py) developed by Paul Walmsley and Benoit Cousson. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
* omap: Split OMAP2_IO_ADDRESS to L3 and L4Santosh Shilimkar2009-10-191-3/+3
| | | | | | | | | | | | | | | This patch splits OMAP2_IO_ADDRESS to OMAP2_L3_IO_ADDRESS and OMAP2_L4_IO_ADDRESS to reclaim more IO space. The omap_read*() and omap_write*() functions will work only over L4 address space. Current omap kernel stack uses these functions only to access registers over L4 io address space Note that these macros should only be used when ioremap does not work. Please use ioremap instead in all new code. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP2/3/4 PRCM: add module IDLEST wait codePaul Walmsley2009-09-031-0/+4
| | | | | | | | | | | | | | | | | | | After a hardware module's clocks are enabled, Linux must wait for it to indicate readiness via its IDLEST bit before attempting to access the device, otherwise register accesses to the device may trigger an abort. This has traditionally been implemented in the clock framework, but this is the wrong place for it: the clock framework doesn't know which module clocks must be enabled for a module to leave idle; and if a module is not in smart-idle mode, it may never leave idle at all. This type of information is best stored in a per-hardware module data structure (coming in a following patch), rather than a per-clock data structure. The new code will use these new functions to handle waiting for modules to enable. Once hardware module data is filled in for all of the on-chip devices, the clock framework code to handle IDLEST waiting can be removed. Signed-off-by: Paul Walmsley <paul@pwsan.com>
* OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS insteadTony Lindgren2009-08-281-3/+3
| | | | | | | | | | | Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS, and convert omap_read/write into a functions instead of a macros. Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE. In the long run, most code should use ioremap + __raw_read/write instead. Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP3: PM: CM_REGADDR macros using wrong nameKevin Hilman2009-08-051-3/+3
| | | | Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
* ARM: OMAP2/3: Remove OMAP_CM_REGADDRTony Lindgren2009-05-251-5/+0
| | | | | | Processor specific macros should be used instead. Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP2/3: Remove OMAP_PRM_REGADDR and OMAP2_PRM_BASETony Lindgren2009-05-251-0/+1
| | | | | | | | | | | | | Remove OMAP_PRM_REGADDR and use processor specific defines instead. Also fold in a patch from Kevin Hilman to add _OFFSET #defines for the PRCM registers to be used with the prm_[read|write]_* macros. These are used extensively in the forthcoming OMAP PM support. Also remove now unused OMAP2_PRM_BASE. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* [ARM] omap: Fix IO_ADDRESS() macrosRussell King2008-09-051-1/+1
| | | | | | | | | | | | | OMAP1_IO_ADDRESS(), OMAP2_IO_ADDRESS() and IO_ADDRESS() returns cookies for use with __raw_{read|write}* for accessing registers. Therefore, these macros should return (void __iomem *) cookies, not integer values. Doing this improves typechecking, and means we can find those places where, eg, DMA controllers are incorrectly given virtual addresses to DMA to, or physical addresses are thrown through a virtual to physical address translation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: OMAP2: Clock: Add OMAP3 DPLL autoidle functionsPaul Walmsley2008-07-031-0/+1
| | | | | | | | | | | | | | | | This patch adds support for DPLL autoidle control to the OMAP3 clock framework. These functions will be used by the noncore DPLL enable and disable code - this is because, according to the CDP code, the DPLL autoidle status must be saved and restored across DPLL lock/bypass/off transitions. N.B.: the CORE DPLL (DPLL3) has three autoidle mode options, rather than just two. This code currently does not support the third option, low-power bypass autoidle. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: Turn CM and PRM access into functionsTony Lindgren2008-07-031-0/+11
| | | | | | | Otherwise compiling in omap2 and omap3 will not work. Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: Introduce omap_globals and prcm access functions for multi-omapTony Lindgren2008-07-031-9/+4
| | | | | | | | | | | | New struct omap_globals contains the omap processor specific module bases. Use omap_globals to set the various base addresses to make detecting omap chip type simpler. Also introduce OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS for future multi-omap patches. Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP2: Add common register access for 24xx and 34xxPaul Walmsley2008-04-141-0/+124
This patch adds common register access for 24xx and 34xx power and clock management in order to share code between 24xx and 34xx. Only change USB platform init code to use new register access, other access will be changed in later patches. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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