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OMAP2/3: clockdomain: remove unneeded .clkstctrl_reg, remove some direct CM register accesses

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Reverse some of the effects of commit
84c0c39aec ("ARM: OMAP4: PM: Make OMAP3
Clock-domain framework compatible for OMAP4").  On OMAP2/3, the
CM_CLKSTCTRL register is at a constant offset from the powerdomain's
CM instance.

Also, remove some of the direct CM register access from the
clockdomain code, moving it to the OMAP2/3 CM code instead.  The
intention here is to simplify the clockdomain code.  (The long-term
goal is to move all direct CM register access across the OMAP core
code to the appropriate cm*.c file.)

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Rajendra Nayak <rnayak@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
Paul Walmsley 2010-12-21 21:05:15 -07:00
parent bd2122ca35
commit 55ae35073b
6 changed files with 127 additions and 135 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

135
arch/arm/mach-omap2/clockdomain.c
View File

@ -29,7 +29,7 @@
#include "prm2xxx_3xxx.h"
#include "prm-regbits-24xx.h"
#include "cm2xxx_3xxx.h"
#include "cm-regbits-34xx.h"
#include "cm-regbits-24xx.h"
#include "cminst44xx.h"
#include "prcm44xx.h"
@ -246,30 +246,18 @@ static void _clkdm_del_autodeps(struct clockdomain *clkdm)
*/
static void _enable_hwsup(struct clockdomain *clkdm)
{
u32 bits, v;
if (cpu_is_omap24xx())
bits = OMAP24XX_CLKSTCTRL_ENABLE_AUTO;
omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
else if (cpu_is_omap34xx())
bits = OMAP34XX_CLKSTCTRL_ENABLE_AUTO;
omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
else if (cpu_is_omap44xx())
return omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition,
clkdm->cm_inst,
clkdm->clkdm_offs);
else
BUG();
bits = bits << __ffs(clkdm->clktrctrl_mask);
/*
* XXX clkstctrl_reg is known on OMAP2 - this clkdm
* field is not needed
*/
v = __raw_readl(clkdm->clkstctrl_reg);
v &= ~(clkdm->clktrctrl_mask);
v |= bits;
__raw_writel(v, clkdm->clkstctrl_reg);
}
/**
@ -284,29 +272,18 @@ static void _enable_hwsup(struct clockdomain *clkdm)
*/
static void _disable_hwsup(struct clockdomain *clkdm)
{
u32 bits, v;
if (cpu_is_omap24xx())
bits = OMAP24XX_CLKSTCTRL_DISABLE_AUTO;
omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
else if (cpu_is_omap34xx())
bits = OMAP34XX_CLKSTCTRL_DISABLE_AUTO;
omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
else if (cpu_is_omap44xx())
return omap4_cminst_clkdm_disable_hwsup(clkdm->prcm_partition,
clkdm->cm_inst,
clkdm->clkdm_offs);
else
BUG();
bits = bits << __ffs(clkdm->clktrctrl_mask);
/*
* XXX clkstctrl_reg is known on OMAP2 - this clkdm
* field is not needed
*/
v = __raw_readl(clkdm->clkstctrl_reg);
v &= ~(clkdm->clktrctrl_mask);
v |= bits;
__raw_writel(v, clkdm->clkstctrl_reg);
}
/* Public functions */
@ -734,34 +711,6 @@ int clkdm_clear_all_sleepdeps(struct clockdomain *clkdm)
return 0;
}
/**
* omap2_clkdm_clktrctrl_read - read the clkdm's current state transition mode
* @clkdm: struct clkdm * of a clockdomain
*
* Return the clockdomain @clkdm current state transition mode from the
* corresponding domain CM_CLKSTCTRL register. Returns -EINVAL if @clkdm
* is NULL or the current mode upon success.
*/
static int omap2_clkdm_clktrctrl_read(struct clockdomain *clkdm)
{
u32 v = 0;
if (!clkdm)
return -EINVAL;
if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
v = __raw_readl(clkdm->clkstctrl_reg);
v &= clkdm->clktrctrl_mask;
v >>= __ffs(clkdm->clktrctrl_mask);
} else if (cpu_is_omap44xx()) {
pr_warn("OMAP4 clockdomain: missing wakeup/sleep deps\n");
} else {
BUG();
}
return v;
}
/**
* omap2_clkdm_sleep - force clockdomain sleep transition
* @clkdm: struct clockdomain *
@ -773,8 +722,6 @@ static int omap2_clkdm_clktrctrl_read(struct clockdomain *clkdm)
*/
int omap2_clkdm_sleep(struct clockdomain *clkdm)
{
u32 bits, v;
if (!clkdm)
return -EINVAL;
@ -793,13 +740,8 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
} else if (cpu_is_omap34xx()) {
bits = (OMAP34XX_CLKSTCTRL_FORCE_SLEEP <<
__ffs(clkdm->clktrctrl_mask));
v = __raw_readl(clkdm->clkstctrl_reg);
v &= ~(clkdm->clktrctrl_mask);
v |= bits;
__raw_writel(v, clkdm->clkstctrl_reg);
omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
} else if (cpu_is_omap44xx()) {
@ -825,8 +767,6 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
*/
int omap2_clkdm_wakeup(struct clockdomain *clkdm)
{
u32 bits, v;
if (!clkdm)
return -EINVAL;
@ -845,13 +785,8 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm)
} else if (cpu_is_omap34xx()) {
bits = (OMAP34XX_CLKSTCTRL_FORCE_WAKEUP <<
__ffs(clkdm->clktrctrl_mask));
v = __raw_readl(clkdm->clkstctrl_reg);
v &= ~(clkdm->clktrctrl_mask);
v |= bits;
__raw_writel(v, clkdm->clkstctrl_reg);
omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
} else if (cpu_is_omap44xx()) {
@ -964,7 +899,7 @@ void omap2_clkdm_deny_idle(struct clockdomain *clkdm)
*/
int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
{
int v;
bool hwsup = false;
/*
* XXX Rewrite this code to maintain a list of enabled
@ -982,13 +917,23 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
pr_debug("clockdomain: clkdm %s: clk %s now enabled\n", clkdm->name,
clk->name);
if (!clkdm->clkstctrl_reg)
return 0;
if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
v = omap2_clkdm_clktrctrl_read(clkdm);
if (!clkdm->clktrctrl_mask)
return 0;
if ((cpu_is_omap34xx() && v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ||
(cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO)) {
hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
} else if (cpu_is_omap44xx()) {
hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
clkdm->cm_inst,
clkdm->clkdm_offs);
}
if (hwsup) {
/* Disable HW transitions when we are changing deps */
_disable_hwsup(clkdm);
_clkdm_add_autodeps(clkdm);
@ -1019,7 +964,7 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
*/
int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
{
int v;
bool hwsup = false;
/*
* XXX Rewrite this code to maintain a list of enabled
@ -1044,13 +989,23 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
pr_debug("clockdomain: clkdm %s: clk %s now disabled\n", clkdm->name,
clk->name);
if (!clkdm->clkstctrl_reg)
return 0;
if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
v = omap2_clkdm_clktrctrl_read(clkdm);
if (!clkdm->clktrctrl_mask)
return 0;
if ((cpu_is_omap34xx() && v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ||
(cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO)) {
hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
} else if (cpu_is_omap44xx()) {
hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
clkdm->cm_inst,
clkdm->clkdm_offs);
}
if (hwsup) {
/* Disable HW transitions when we are changing deps */
_disable_hwsup(clkdm);
_clkdm_del_autodeps(clkdm);

40
arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
View File

@ -456,7 +456,6 @@ static struct clockdomain mpu_2420_clkdm = {
.name = "mpu_clkdm",
.pwrdm = { .name = "mpu_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(MPU_MOD, OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = mpu_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
@ -466,8 +465,6 @@ static struct clockdomain iva1_2420_clkdm = {
.name = "iva1_clkdm",
.pwrdm = { .name = "dsp_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(OMAP24XX_DSP_MOD,
OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
.wkdep_srcs = dsp_24xx_wkdeps,
.clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK,
@ -478,8 +475,6 @@ static struct clockdomain dsp_2420_clkdm = {
.name = "dsp_clkdm",
.pwrdm = { .name = "dsp_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(OMAP24XX_DSP_MOD,
OMAP2_CM_CLKSTCTRL),
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
@ -488,7 +483,6 @@ static struct clockdomain gfx_2420_clkdm = {
.name = "gfx_clkdm",
.pwrdm = { .name = "gfx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = gfx_sgx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
@ -498,7 +492,6 @@ static struct clockdomain core_l3_2420_clkdm = {
.name = "core_l3_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
@ -508,7 +501,6 @@ static struct clockdomain core_l4_2420_clkdm = {
.name = "core_l4_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
@ -518,7 +510,6 @@ static struct clockdomain dss_2420_clkdm = {
.name = "dss_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
@ -536,8 +527,6 @@ static struct clockdomain mpu_2430_clkdm = {
.name = "mpu_clkdm",
.pwrdm = { .name = "mpu_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(MPU_MOD,
OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = mpu_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
@ -548,8 +537,6 @@ static struct clockdomain mdm_clkdm = {
.name = "mdm_clkdm",
.pwrdm = { .name = "mdm_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(OMAP2430_MDM_MOD,
OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT,
.wkdep_srcs = mdm_2430_wkdeps,
.clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK,
@ -560,8 +547,6 @@ static struct clockdomain dsp_2430_clkdm = {
.name = "dsp_clkdm",
.pwrdm = { .name = "dsp_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(OMAP24XX_DSP_MOD,
OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
.wkdep_srcs = dsp_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
@ -572,7 +557,6 @@ static struct clockdomain gfx_2430_clkdm = {
.name = "gfx_clkdm",
.pwrdm = { .name = "gfx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = gfx_sgx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
@ -587,7 +571,6 @@ static struct clockdomain core_l3_2430_clkdm = {
.name = "core_l3_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP24XX_EN_CORE_SHIFT,
.wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
@ -603,7 +586,6 @@ static struct clockdomain core_l4_2430_clkdm = {
.name = "core_l4_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP24XX_EN_CORE_SHIFT,
.wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
@ -614,7 +596,6 @@ static struct clockdomain dss_2430_clkdm = {
.name = "dss_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
@ -632,7 +613,6 @@ static struct clockdomain mpu_3xxx_clkdm = {
.name = "mpu_clkdm",
.pwrdm = { .name = "mpu_pwrdm" },
.flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(MPU_MOD, OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP3430_EN_MPU_SHIFT,
.wkdep_srcs = mpu_3xxx_wkdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
@ -643,8 +623,6 @@ static struct clockdomain neon_clkdm = {
.name = "neon_clkdm",
.pwrdm = { .name = "neon_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_NEON_MOD,
OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = neon_wkdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
@ -654,8 +632,6 @@ static struct clockdomain iva2_clkdm = {
.name = "iva2_clkdm",
.pwrdm = { .name = "iva2_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_IVA2_MOD,
OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
.wkdep_srcs = iva2_wkdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK,
@ -666,7 +642,6 @@ static struct clockdomain gfx_3430es1_clkdm = {
.name = "gfx_clkdm",
.pwrdm = { .name = "gfx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = gfx_sgx_wkdeps,
.sleepdep_srcs = gfx_sgx_sleepdeps,
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK,
@ -677,8 +652,6 @@ static struct clockdomain sgx_clkdm = {
.name = "sgx_clkdm",
.pwrdm = { .name = "sgx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430ES2_SGX_MOD,
OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = gfx_sgx_wkdeps,
.sleepdep_srcs = gfx_sgx_sleepdeps,
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
@ -696,7 +669,6 @@ static struct clockdomain d2d_clkdm = {
.name = "d2d_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
@ -710,7 +682,6 @@ static struct clockdomain core_l3_3xxx_clkdm = {
.name = "core_l3_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP3430_EN_CORE_SHIFT,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
@ -725,7 +696,6 @@ static struct clockdomain core_l4_3xxx_clkdm = {
.name = "core_l4_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP3430_EN_CORE_SHIFT,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
@ -736,8 +706,6 @@ static struct clockdomain dss_3xxx_clkdm = {
.name = "dss_clkdm",
.pwrdm = { .name = "dss_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD,
OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
.wkdep_srcs = dss_wkdeps,
.sleepdep_srcs = dss_sleepdeps,
@ -749,8 +717,6 @@ static struct clockdomain cam_clkdm = {
.name = "cam_clkdm",
.pwrdm = { .name = "cam_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_CAM_MOD,
OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = cam_wkdeps,
.sleepdep_srcs = cam_sleepdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK,
@ -761,8 +727,6 @@ static struct clockdomain usbhost_clkdm = {
.name = "usbhost_clkdm",
.pwrdm = { .name = "usbhost_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430ES2_USBHOST_MOD,
OMAP2_CM_CLKSTCTRL),
.wkdep_srcs = usbhost_wkdeps,
.sleepdep_srcs = usbhost_sleepdeps,
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
@ -773,8 +737,6 @@ static struct clockdomain per_clkdm = {
.name = "per_clkdm",
.pwrdm = { .name = "per_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_PER_MOD,
OMAP2_CM_CLKSTCTRL),
.dep_bit = OMAP3430_EN_PER_SHIFT,
.wkdep_srcs = per_wkdeps,
.sleepdep_srcs = per_sleepdeps,
@ -790,8 +752,6 @@ static struct clockdomain emu_clkdm = {
.name = "emu_clkdm",
.pwrdm = { .name = "emu_pwrdm" },
.flags = /* CLKDM_CAN_ENABLE_AUTO | */CLKDM_CAN_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_EMU_MOD,
OMAP2_CM_CLKSTCTRL),
.clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};

5
arch/arm/mach-omap2/cm-regbits-24xx.h
View File

@ -434,4 +434,9 @@
#define OMAP2430_AUTOSTATE_MDM_SHIFT 0
#define OMAP2430_AUTOSTATE_MDM_MASK (1 << 0)
/* OMAP24XX CM_CLKSTCTRL_*.AUTOSTATE_* register bit values */
#define OMAP24XX_CLKSTCTRL_DISABLE_AUTO 0x0
#define OMAP24XX_CLKSTCTRL_ENABLE_AUTO 0x1
#endif

68
arch/arm/mach-omap2/cm2xxx_3xxx.c
View File

@ -62,6 +62,74 @@ u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
}
/*
*
*/
static void _write_clktrctrl(u8 c, s16 module, u32 mask)
{
u32 v;
v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
v &= ~mask;
v |= c << __ffs(mask);
omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL);
}
bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask)
{
u32 v;
bool ret = 0;
BUG_ON(!cpu_is_omap24xx() && !cpu_is_omap34xx());
v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
v &= mask;
v >>= __ffs(mask);
if (cpu_is_omap24xx())
ret = (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
else
ret = (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
return ret;
}
void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
{
_write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
}
void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
{
_write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
}
void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
{
_write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
}
void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
{
_write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
}
void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask)
{
_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask);
}
void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask)
{
_write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask);
}
/*
*
*/
/**
* omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby
* @prcm_mod: PRCM module offset

9
arch/arm/mach-omap2/cm2xxx_3xxx.h
View File

@ -113,6 +113,15 @@ extern int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
extern u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx);
extern u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx);
extern bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask);
extern void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask);
extern void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask);
extern void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask);
extern void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask);
extern void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask);
extern void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask);
#endif
/* CM register bits shared between 24XX and 3430 */

5
arch/arm/plat-omap/include/plat/clockdomain.h
View File

@ -34,10 +34,6 @@
#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)
#define CLKDM_CAN_HWSUP_SWSUP (CLKDM_CAN_SWSUP | CLKDM_CAN_HWSUP)
/* OMAP24XX CM_CLKSTCTRL_*.AUTOSTATE_* register bit values */
#define OMAP24XX_CLKSTCTRL_DISABLE_AUTO 0x0
#define OMAP24XX_CLKSTCTRL_ENABLE_AUTO 0x1
/**
* struct clkdm_autodep - clkdm deps to add when entering/exiting hwsup mode
* @clkdm: clockdomain to add wkdep+sleepdep on - set name member only
@ -110,7 +106,6 @@ struct clockdomain {
struct powerdomain *ptr;
} pwrdm;
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
void __iomem *clkstctrl_reg;
const u16 clktrctrl_mask;
#endif
const u8 flags;