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linux/arch/arm/mach-omap2/clock.h

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ARM: OMAP2: Add common clock framework for 24xx and 34xx This patch adds a common clock framework for 24xx and 34xx. Note that this patch does not add it to Makefile until in next patch. Some functions are modified from earlier 24xx clock framework code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-18 16:22:06 +08:00
/*
* linux/arch/arm/mach-omap2/clock.h
*
OMAP2 clock: convert clock24xx.h to clock2xxx_data.c, opp2xxx* The OMAP2 clock code currently #includes a large .h file full of static data structures. Instead, define the data in a .c file. Russell King <linux@arm.linux.org.uk> proposed this new arrangement: http://marc.info/?l=linux-omap&m=125967425908895&w=2 This patch also deals with most of the flagrant checkpatch violations. While here, separate the prcm_config data structures out into their own files, opp2xxx.h and opp24{2,3}0_data.c, and only build in the OPP tables for the target device. This should save some memory. In the long run, these prcm_config tables should be replaced with OPP code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Richard Woodruff <r-woodruff2@ti.com> Cc: Nishanth Menon <nm@ti.com>
2009-12-09 07:21:29 +08:00
* Copyright (C) 2005-2009 Texas Instruments, Inc.
OMAP2+: clock: add interface clock type code with autoidle support Add interface clock type code with autoidle enable/disable support. The clkops structures created in this file will be used for all OMAP2/3 interface clocks with autoidle support. They will enable the clock framework to control interface clock autoidle directly. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Rajendra Nayak <rnayak@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-02-26 06:39:28 +08:00
* Copyright (C) 2004-2011 Nokia Corporation
ARM: OMAP2: Add common clock framework for 24xx and 34xx This patch adds a common clock framework for 24xx and 34xx. Note that this patch does not add it to Makefile until in next patch. Some functions are modified from earlier 24xx clock framework code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-18 16:22:06 +08:00
*
ARM: OMAP2: Clean up 24xx clock code Clean up 24xx clock code to sync it with linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-18 17:56:39 +08:00
* Contacts:
* Richard Woodruff <r-woodruff2@ti.com>
ARM: OMAP2: Add common clock framework for 24xx and 34xx This patch adds a common clock framework for 24xx and 34xx. Note that this patch does not add it to Makefile until in next patch. Some functions are modified from earlier 24xx clock framework code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-18 16:22:06 +08:00
* 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.
*/
#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H
#define __ARCH_ARM_MACH_OMAP2_CLOCK_H
OMAP2+: clock: allow per-SoC clock init code to prevent clockdomain calls from clock code The OMAP2/3 clock code was written to notify the clockdomain code when the first clock in a clockdomain is enabled and when the last enabled clock in a clockdomain is disabled. OMAP4 requires a different approach: the hwmod code needs to signal the clockdomain code when to force-enable and auto-idle a clockdomain during the IP block enable process. The current conjecture is that once that hwmod sequence is implemented, it will no longer be necessary for the clock code to call into the clockdomain code for "optional clocks" on OMAP4. Add a static flag to the OMAP2+ clock code, clkdm_control, that by default preserves the OMAP2/3 behavior. Also add a function, omap2_clk_disable_clkdm_control(), intended to be called from OMAP4 and beyond clock initcalls, that disables the old behavior. Part of this patch was originally based on a patch by Rajendra Nayak <rnayak@ti.com>. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Rajendra Nayak <rnayak@ti.com>
2011-07-10 19:57:06 +08:00
#include <linux/kernel.h>
ARM: OMAP: remove plat/clock.h Remove arch/arm/plat-omap/include/plat/clock.h by merging it into arch/arm/mach-omap1/clock.h and arch/arm/mach-omap2/clock.h. The goal here is to facilitate ARM single image kernels by removing includes via the "plat/" symlink. Signed-off-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: fixed to remove duplicate clock.h includes] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-28 00:33:34 +08:00
#include <linux/list.h>
ARM: OMAP: clock: split plat/clkdev_omap.h into OMAP1/2 files To facilitate the ARM single image work, split arch/arm/plat-omap/include/plat/clkdev_omap.h into the arch/arm/mach-omap1/clock.h and arch/arm/mach-omap2/clock.h files. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-28 00:33:35 +08:00
#include <linux/clkdev.h>
ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts Clean all #ifdef's added to common clock code. This code is no longer needed due to migration to the common clock framework. Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: clean up new ifdefs added in clockdomain.c] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-08 05:14:47 +08:00
#include <linux/clk-provider.h>
CLK: TI: Add DPLL clock support The OMAP clock driver now supports DPLL clock type. This patch also adds support for DT DPLL nodes. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-12 21:04:34 +08:00
#include <linux/clk/ti.h>
ARM: OMAP: clock: split plat/clkdev_omap.h into OMAP1/2 files To facilitate the ARM single image work, split arch/arm/plat-omap/include/plat/clkdev_omap.h into the arch/arm/mach-omap1/clock.h and arch/arm/mach-omap2/clock.h files. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-28 00:33:35 +08:00
ARM: OMAP: remove plat/clock.h Remove arch/arm/plat-omap/include/plat/clock.h by merging it into arch/arm/mach-omap1/clock.h and arch/arm/mach-omap2/clock.h. The goal here is to facilitate ARM single image kernels by removing includes via the "plat/" symlink. Signed-off-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: fixed to remove duplicate clock.h includes] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-28 00:33:34 +08:00
/* struct clksel_rate.flags possibilities */
#define RATE_IN_242X (1 << 0)
#define RATE_IN_243X (1 << 1)
#define RATE_IN_3430ES1 (1 << 2) /* 3430ES1 rates only */
#define RATE_IN_3430ES2PLUS (1 << 3) /* 3430 ES >= 2 rates only */
#define RATE_IN_36XX (1 << 4)
#define RATE_IN_4430 (1 << 5)
#define RATE_IN_TI816X (1 << 6)
#define RATE_IN_4460 (1 << 7)
#define RATE_IN_AM33XX (1 << 8)
#define RATE_IN_TI814X (1 << 9)
#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X)
#define RATE_IN_34XX (RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS)
#define RATE_IN_3XXX (RATE_IN_34XX | RATE_IN_36XX)
#define RATE_IN_44XX (RATE_IN_4430 | RATE_IN_4460)
/* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */
#define RATE_IN_3430ES2PLUS_36XX (RATE_IN_3430ES2PLUS | RATE_IN_36XX)
[ARM] omap: add support for bypassing DPLLs This roughly corresponds with OMAP commits: 7d06c48, 3241b19, 88b5d9b, 18a5500, 9c909ac, 5c6497b, 8b1f0bd, 2ac1da8. For both OMAP2 and OMAP3, we note the reference and bypass clocks in the DPLL data structure. Whenever we modify the DPLL rate, we first ensure that both the reference and bypass clocks are enabled. Then, we decide whether to use the reference and DPLL, or the bypass clock if the desired rate is identical to the bypass rate, and program the DPLL appropriately. Finally, we update the clock's parent, and then disable the unused clocks. This keeps the parents correctly balanced, and more importantly ensures that the bypass clock is running whenever we reprogram the DPLL. This is especially important because the procedure for reprogramming the DPLL involves switching to the bypass clock. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-19 21:29:22 +08:00
/* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */
#define CORE_CLK_SRC_32K 0x0
#define CORE_CLK_SRC_DPLL 0x1
#define CORE_CLK_SRC_DPLL_X2 0x2
/* OMAP2xxx CM_CLKEN_PLL.EN_DPLL bits - for omap2_get_dpll_rate() */
#define OMAP2XXX_EN_DPLL_LPBYPASS 0x1
#define OMAP2XXX_EN_DPLL_FRBYPASS 0x2
#define OMAP2XXX_EN_DPLL_LOCKED 0x3
/* OMAP3xxx CM_CLKEN_PLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */
#define OMAP3XXX_EN_DPLL_LPBYPASS 0x5
#define OMAP3XXX_EN_DPLL_FRBYPASS 0x6
#define OMAP3XXX_EN_DPLL_LOCKED 0x7
ARM: OMAP4: PM: Add support for OMAP4 dpll api's Most of the dpll api's from dpll.c are reused for OMAP4. This patch does extend a few api's for OMAP4 support. 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 09:47:16 +08:00
/* OMAP4xxx CM_CLKMODE_DPLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */
#define OMAP4XXX_EN_DPLL_MNBYPASS 0x4
#define OMAP4XXX_EN_DPLL_LPBYPASS 0x5
#define OMAP4XXX_EN_DPLL_FRBYPASS 0x6
#define OMAP4XXX_EN_DPLL_LOCKED 0x7
clk: ti: convert to use proper register definition for all accesses 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>
2017-02-09 17:24:37 +08:00
extern struct ti_clk_ll_ops omap_clk_ll_ops;
ARM: OMAP: am33xx: Update common omap platform files This patch updates the common platform files with AM335X device support (AM33XX family). The approach taken in this patch is, AM33XX device will be considered as OMAP3 variant, and a separate SoC class created for AM33XX family of devices with a subclass type for AM335X device, which is newly added device in the family. This means, cpu_is_omap34xx(), cpu_is_am33xx() and cpu_is_am335x() checks will return success on AM335X device. A kernel config option CONFIG_SOC_OMAPAM33XX is added under OMAP3 to include support for AM33XX build. Also, cpu_mask and RATE_IN_XXX flags have crossed 8 bit hence struct clksel_rate.flags, struct prcm_config.flags and cpu_mask are changed to u16 from u8. Signed-off-by: Afzal Mohammed <afzal@ti.com> Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Cc: Hemant Pedanekar <hemantp@ti.com> [tony@atomide.com: left out CK_AM33XX for now] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-14 02:46:43 +08:00
extern u16 cpu_mask;
OMAP2 clock: convert clock24xx.h to clock2xxx_data.c, opp2xxx* The OMAP2 clock code currently #includes a large .h file full of static data structures. Instead, define the data in a .c file. Russell King <linux@arm.linux.org.uk> proposed this new arrangement: http://marc.info/?l=linux-omap&m=125967425908895&w=2 This patch also deals with most of the flagrant checkpatch violations. While here, separate the prcm_config data structures out into their own files, opp2xxx.h and opp24{2,3}0_data.c, and only build in the OPP tables for the target device. This should save some memory. In the long run, these prcm_config tables should be replaced with OPP code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Richard Woodruff <r-woodruff2@ti.com> Cc: Nishanth Menon <nm@ti.com>
2009-12-09 07:21:29 +08:00
[ARM] omap: add default .ops to all remaining OMAP2 clocks Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-05 01:59:52 +08:00
extern const struct clkops clkops_omap2_dflt_wait;
[ARM] omap: eliminate unnecessary conditionals in omap2_clk_wait_ready Rather than employing run-time tests in omap2_clk_wait_ready() to decide whether we need to wait for the clock to become ready, we can set the .ops appropriately. This change deals with the OMAP24xx and OMAP34xx conditionals only. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-05 02:59:32 +08:00
extern const struct clkops clkops_omap2_dflt;
[ARM] omap: add default .ops to all remaining OMAP2 clocks Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-05 01:59:52 +08:00
OMAP3 clock: convert clock34xx.h to clock34xx_data.c The OMAP3 clock code currently #includes a large .h file full of static data structures. Instead, define the data in a .c file. Russell King <linux@arm.linux.org.uk> proposed this new arrangement: http://marc.info/?l=linux-omap&m=125967425908895&w=2 Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Russell King <linux@arm.linux.org.uk>
2009-12-09 07:18:47 +08:00
extern struct clk_functions omap2_clk_functions;
clk: ti: remove exported ll_ops struct, instead add an API for registration We should avoid exporting data from drivers, instead use an API for registering the clock low level operations. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-04-28 02:55:42 +08:00
int __init omap2_clk_setup_ll_ops(void);
ARM: OMAP2+: clock: move clock provider infrastructure to clock driver Splits the clock provider init out of the PRM driver and moves it to clock driver. This is needed so that once the PRCM drivers are separated, they can logically just access the clock driver not needing to go through common PRM code. This would be wrong in the case of control module for example. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2014-10-22 20:15:36 +08:00
ARM: OMAP2+: clock: introduce ti_clk_features flags This shall be used to replace the cpu type checks around the clock code. Actual bit values will be introduced in patches later. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-07-02 16:47:39 +08:00
void __init ti_clk_init_features(void);
ARM: OMAP2: Add common clock framework for 24xx and 34xx This patch adds a common clock framework for 24xx and 34xx. Note that this patch does not add it to Makefile until in next patch. Some functions are modified from earlier 24xx clock framework code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-18 16:22:06 +08:00
#endif