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[ARM] OMAP2/3 clockdomains: add CM and PRM clkdms 

Add clockdomains for the CM and PRM.  These will ultimately replace the
"wkup_clkdm", which appears to not actually exist on the hardware.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Paul Walmsley 2008-09-10 10:47:36 -06:00 committed by Russell King
parent 5b74c67660
commit d37f1a1367
2 changed files with 21 additions and 2 deletions
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19
arch/arm/mach-omap2/clockdomains.h
View File

@ -14,6 +14,11 @@
/*
* OMAP2/3-common clockdomains
*
* Even though the 2420 has a single PRCM module from the
* interconnect's perspective, internally it does appear to have
* separate PRM and CM clockdomains. The usual test case is
* sys_clkout/sys_clkout2.
*/
/* This is an implicit clockdomain - it is never defined as such in TRM */
@ -23,6 +28,18 @@ static struct clockdomain wkup_clkdm = {
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
};
static struct clockdomain prm_clkdm = {
.name = "prm_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
};
static struct clockdomain cm_clkdm = {
.name = "cm_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
};
/*
* 2420-only clockdomains
*/
@ -266,6 +283,8 @@ static struct clkdm_pwrdm_autodep clkdm_pwrdm_autodeps[] = {
static struct clockdomain *clockdomains_omap[] = {
&wkup_clkdm,
&cm_clkdm,
&prm_clkdm,
#ifdef CONFIG_ARCH_OMAP2420
&mpu_2420_clkdm,

4
arch/arm/plat-omap/include/mach/powerdomain.h
View File

@ -50,9 +50,9 @@
/*
* Maximum number of clockdomains that can be associated with a powerdomain.
* CORE powerdomain is probably the worst case.
* CORE powerdomain on OMAP3 is the worst case
*/
#define PWRDM_MAX_CLKDMS 3
#define PWRDM_MAX_CLKDMS 4
/* XXX A completely arbitrary number. What is reasonable here? */
#define PWRDM_TRANSITION_BAILOUT 100000