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linux-sg2042/arch/arm/mach-omap2/cm.h

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ARM: OMAP2: Add common register access for 24xx and 34xx 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>
2008-03-18 16:02:50 +08:00
/*
OMAP2/3: PRCM: split OMAP2/3-specific PRCM code into OMAP2/3-specific files 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>
2010-12-22 06:30:55 +08:00
* OMAP2+ Clock Management prototypes
ARM: OMAP2: Add common register access for 24xx and 34xx 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>
2008-03-18 16:02:50 +08:00
*
ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup 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>
2012-10-30 10:57:39 +08:00
* Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
ARM: OMAP4: PM: Adds CM1/2 register defs for OMAP4 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>
2009-12-09 09:24:50 +08:00
* Copyright (C) 2007-2009 Nokia Corporation
ARM: OMAP2: Add common register access for 24xx and 34xx 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>
2008-03-18 16:02:50 +08:00
*
* Written by Paul Walmsley
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
OMAP2/3: PRCM: split OMAP2/3-specific PRCM code into OMAP2/3-specific files 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>
2010-12-22 06:30:55 +08:00
#ifndef __ARCH_ASM_MACH_OMAP2_CM_H
#define __ARCH_ASM_MACH_OMAP2_CM_H
ARM: OMAP2: Add common register access for 24xx and 34xx 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>
2008-03-18 16:02:50 +08:00
OMAP: CM: Move MAX_MODULE_READY_TIME to cm.h 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>
2010-05-21 02:31:08 +08:00
/*
* MAX_MODULE_READY_TIME: max duration in microseconds to wait for the
* PRCM to request that a module exit the inactive state in the case of
* OMAP2 & 3.
* In the case of OMAP4 this is the max duration in microseconds for the
* module to reach the functionnal state from an inactive state.
*/
#define MAX_MODULE_READY_TIME 2000
ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup 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>
2012-10-30 10:57:39 +08:00
# ifndef __ASSEMBLER__
extern void __iomem *cm_base;
extern void __iomem *cm2_base;
extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
# endif
ARM: OMAP2+: CM: increase the module disable timeout Increase the timeout for disabling an IP block to five milliseconds. This is to handle the usb_host_fs idle latency, which takes almost four milliseconds after a host controller reset. This is the second of two patches needed to resolve the following boot warning: omap_hwmod: usb_host_fs: _wait_target_disable failed Thanks to Sergei Shtylyov <sshtylyov@mvista.com> for finding an unrelated hunk in a previous version of this patch. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Cc: Tero Kristo <t-kristo@ti.com>
2012-06-18 01:57:53 +08:00
/*
* MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for
* the PRCM to request that a module enter the inactive state in the
* case of OMAP2 & 3. In the case of OMAP4 this is the max duration
* in microseconds for the module to reach the inactive state from
* a functional state.
* XXX FSUSB on OMAP4430 takes ~4ms to idle after reset during
* kernel init.
*/
#define MAX_MODULE_DISABLE_TIME 5000
ARM: OMAP2+: CM: prepare for use of cm_ll_data function pointers 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>
2012-10-21 15:01:12 +08:00
# ifndef __ASSEMBLER__
/**
* struct cm_ll_data - fn ptrs to per-SoC CM function implementations
ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use 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>
2012-10-30 10:56:29 +08:00
* @split_idlest_reg: ptr to the SoC CM-specific split_idlest_reg impl
* @wait_module_ready: ptr to the SoC CM-specific wait_module_ready impl
ARM: OMAP2+: CM: prepare for use of cm_ll_data function pointers 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>
2012-10-21 15:01:12 +08:00
*/
ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use 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>
2012-10-30 10:56:29 +08:00
struct cm_ll_data {
int (*split_idlest_reg)(void __iomem *idlest_reg, s16 *prcm_inst,
u8 *idlest_reg_id);
int (*wait_module_ready)(s16 prcm_mod, u8 idlest_id, u8 idlest_shift);
};
extern int cm_split_idlest_reg(void __iomem *idlest_reg, s16 *prcm_inst,
u8 *idlest_reg_id);
extern int cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift);
ARM: OMAP2+: CM: prepare for use of cm_ll_data function pointers 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>
2012-10-21 15:01:12 +08:00
extern int cm_register(struct cm_ll_data *cld);
extern int cm_unregister(struct cm_ll_data *cld);
# endif
ARM: OMAP2: Add common register access for 24xx and 34xx 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>
2008-03-18 16:02:50 +08:00
#endif