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ARM: OMAP AM33xx: clockdomains: Add clockdomain data and respective operations 

AM33XX PRCM module consists of various clockdomains, in all
total we have 18 clockdomains available, with following
controlling options,
   - SW Sleep: sw forced sleep transition
   - SW Wakeup: sw forced wakeup transition

This patch adds all available clockdomain data, respective
clockdomain operations for AM33XX family of device, and also
integrates it into existing OMAP framework.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
CC: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: removed CLKDM_NO_AUTODEPS from clockdomain flags, removed
 unnecessary .clktrctrl_offs field; updated for 3.5]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Vaibhav Hiremath 2012-06-18 00:47:27 -06:00 committed by Paul Walmsley
parent 3f0ea7645a
commit 9c80f3aa8b
5 changed files with 275 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-omap2/Makefile
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@ -133,6 +133,8 @@ obj-$(CONFIG_ARCH_OMAP3) += clockdomains3xxx_data.o
obj-$(CONFIG_ARCH_OMAP4) += $(clockdomain-common)
obj-$(CONFIG_ARCH_OMAP4) += clockdomain44xx.o
obj-$(CONFIG_ARCH_OMAP4) += clockdomains44xx_data.o
obj-$(CONFIG_SOC_AM33XX) += clockdomain33xx.o
obj-$(CONFIG_SOC_AM33XX) += clockdomains33xx_data.o
# Clock framework
obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o

2
arch/arm/mach-omap2/clockdomain.h
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@ -195,6 +195,7 @@ int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh);
extern void __init omap242x_clockdomains_init(void);
extern void __init omap243x_clockdomains_init(void);
extern void __init omap3xxx_clockdomains_init(void);
extern void __init am33xx_clockdomains_init(void);
extern void __init omap44xx_clockdomains_init(void);
extern void _clkdm_add_autodeps(struct clockdomain *clkdm);
extern void _clkdm_del_autodeps(struct clockdomain *clkdm);
@ -202,6 +203,7 @@ extern void _clkdm_del_autodeps(struct clockdomain *clkdm);
extern struct clkdm_ops omap2_clkdm_operations;
extern struct clkdm_ops omap3_clkdm_operations;
extern struct clkdm_ops omap4_clkdm_operations;
extern struct clkdm_ops am33xx_clkdm_operations;
extern struct clkdm_dep gfx_24xx_wkdeps[];
extern struct clkdm_dep dsp_24xx_wkdeps[];

74
arch/arm/mach-omap2/clockdomain33xx.c Normal file
View File

@ -0,0 +1,74 @@
/*
* AM33XX clockdomain control
*
* Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/
* Vaibhav Hiremath <hvaibhav@ti.com>
*
* Derived from mach-omap2/clockdomain44xx.c written by Rajendra Nayak
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include "clockdomain.h"
#include "cm33xx.h"
static int am33xx_clkdm_sleep(struct clockdomain *clkdm)
{
am33xx_cm_clkdm_force_sleep(clkdm->cm_inst, clkdm->clkdm_offs);
return 0;
}
static int am33xx_clkdm_wakeup(struct clockdomain *clkdm)
{
am33xx_cm_clkdm_force_wakeup(clkdm->cm_inst, clkdm->clkdm_offs);
return 0;
}
static void am33xx_clkdm_allow_idle(struct clockdomain *clkdm)
{
am33xx_cm_clkdm_enable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
}
static void am33xx_clkdm_deny_idle(struct clockdomain *clkdm)
{
am33xx_cm_clkdm_disable_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
}
static int am33xx_clkdm_clk_enable(struct clockdomain *clkdm)
{
if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
return am33xx_clkdm_wakeup(clkdm);
return 0;
}
static int am33xx_clkdm_clk_disable(struct clockdomain *clkdm)
{
bool hwsup = false;
hwsup = am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs);
if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP))
am33xx_clkdm_sleep(clkdm);
return 0;
}
struct clkdm_ops am33xx_clkdm_operations = {
.clkdm_sleep = am33xx_clkdm_sleep,
.clkdm_wakeup = am33xx_clkdm_wakeup,
.clkdm_allow_idle = am33xx_clkdm_allow_idle,
.clkdm_deny_idle = am33xx_clkdm_deny_idle,
.clkdm_clk_enable = am33xx_clkdm_clk_enable,
.clkdm_clk_disable = am33xx_clkdm_clk_disable,
};

196
arch/arm/mach-omap2/clockdomains33xx_data.c Normal file
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@ -0,0 +1,196 @@
/*
* AM33XX Clock Domain data.
*
* Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/
* Vaibhav Hiremath <hvaibhav@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/io.h>
#include "clockdomain.h"
#include "cm.h"
#include "cm33xx.h"
#include "cm-regbits-33xx.h"
static struct clockdomain l4ls_am33xx_clkdm = {
.name = "l4ls_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_L4LS_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l3s_am33xx_clkdm = {
.name = "l3s_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_L3S_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l4fw_am33xx_clkdm = {
.name = "l4fw_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_L4FW_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l3_am33xx_clkdm = {
.name = "l3_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_L3_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l4hs_am33xx_clkdm = {
.name = "l4hs_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_L4HS_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain ocpwp_l3_am33xx_clkdm = {
.name = "ocpwp_l3_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_OCPWP_L3_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain pruss_ocp_am33xx_clkdm = {
.name = "pruss_ocp_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_PRUSS_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain cpsw_125mhz_am33xx_clkdm = {
.name = "cpsw_125mhz_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_CPSW_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain lcdc_am33xx_clkdm = {
.name = "lcdc_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_LCDC_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain clk_24mhz_am33xx_clkdm = {
.name = "clk_24mhz_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.cm_inst = AM33XX_CM_PER_MOD,
.clkdm_offs = AM33XX_CM_PER_CLK_24MHZ_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l4_wkup_am33xx_clkdm = {
.name = "l4_wkup_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
.cm_inst = AM33XX_CM_WKUP_MOD,
.clkdm_offs = AM33XX_CM_WKUP_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l3_aon_am33xx_clkdm = {
.name = "l3_aon_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
.cm_inst = AM33XX_CM_WKUP_MOD,
.clkdm_offs = AM33XX_CM_L3_AON_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l4_wkup_aon_am33xx_clkdm = {
.name = "l4_wkup_aon_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
.cm_inst = AM33XX_CM_WKUP_MOD,
.clkdm_offs = AM33XX_CM_L4_WKUP_AON_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain mpu_am33xx_clkdm = {
.name = "mpu_clkdm",
.pwrdm = { .name = "mpu_pwrdm" },
.cm_inst = AM33XX_CM_MPU_MOD,
.clkdm_offs = AM33XX_CM_MPU_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l4_rtc_am33xx_clkdm = {
.name = "l4_rtc_clkdm",
.pwrdm = { .name = "rtc_pwrdm" },
.cm_inst = AM33XX_CM_RTC_MOD,
.clkdm_offs = AM33XX_CM_RTC_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain gfx_l3_am33xx_clkdm = {
.name = "gfx_l3_clkdm",
.pwrdm = { .name = "gfx_pwrdm" },
.cm_inst = AM33XX_CM_GFX_MOD,
.clkdm_offs = AM33XX_CM_GFX_L3_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain gfx_l4ls_gfx_am33xx_clkdm = {
.name = "gfx_l4ls_gfx_clkdm",
.pwrdm = { .name = "gfx_pwrdm" },
.cm_inst = AM33XX_CM_GFX_MOD,
.clkdm_offs = AM33XX_CM_GFX_L4LS_GFX_CLKSTCTRL__1_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain l4_cefuse_am33xx_clkdm = {
.name = "l4_cefuse_clkdm",
.pwrdm = { .name = "cefuse_pwrdm" },
.cm_inst = AM33XX_CM_CEFUSE_MOD,
.clkdm_offs = AM33XX_CM_CEFUSE_CLKSTCTRL_OFFSET,
.flags = CLKDM_CAN_SWSUP,
};
static struct clockdomain *clockdomains_am33xx[] __initdata = {
&l4ls_am33xx_clkdm,
&l3s_am33xx_clkdm,
&l4fw_am33xx_clkdm,
&l3_am33xx_clkdm,
&l4hs_am33xx_clkdm,
&ocpwp_l3_am33xx_clkdm,
&pruss_ocp_am33xx_clkdm,
&cpsw_125mhz_am33xx_clkdm,
&lcdc_am33xx_clkdm,
&clk_24mhz_am33xx_clkdm,
&l4_wkup_am33xx_clkdm,
&l3_aon_am33xx_clkdm,
&l4_wkup_aon_am33xx_clkdm,
&mpu_am33xx_clkdm,
&l4_rtc_am33xx_clkdm,
&gfx_l3_am33xx_clkdm,
&gfx_l4ls_gfx_am33xx_clkdm,
&l4_cefuse_am33xx_clkdm,
NULL,
};
void __init am33xx_clockdomains_init(void)
{
clkdm_register_platform_funcs(&am33xx_clkdm_operations);
clkdm_register_clkdms(clockdomains_am33xx);
clkdm_complete_init();
}

1
arch/arm/mach-omap2/io.c
View File

@ -486,6 +486,7 @@ void __init am33xx_init_early(void)
omap_common_init_early();
am33xx_voltagedomains_init();
am33xx_powerdomains_init();
am33xx_clockdomains_init();
}
#endif