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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>
This commit is contained in:
Benoit Cousson 2010-05-20 12:31:08 -06:00 committed by Paul Walmsley
parent 53934aa74d
commit d9e6625c70
3 changed files with 10 additions and 20 deletions
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3
arch/arm/mach-omap2/cm.c
View File

@ -27,9 +27,6 @@
#include "cm-regbits-24xx.h"
#include "cm-regbits-34xx.h"
/* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */
#define MAX_MODULE_READY_TIME 20000
static const u8 cm_idlest_offs[] = {
CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3
};

9
arch/arm/mach-omap2/cm.h
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@ -144,4 +144,13 @@ static inline u32 cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
#define OMAP24XX_CM_IDLEST_VAL 0
#define OMAP34XX_CM_IDLEST_VAL 1
/*
* 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
#endif

18
arch/arm/mach-omap2/cm4xxx.c
View File

@ -22,23 +22,7 @@
#include <asm/atomic.h>
#include "cm.h"
/* XXX move this to cm.h */
/* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */
#define MAX_MODULE_READY_TIME 20000
/*
* OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK: isolates the IDLEST field in the
* CM_CLKCTRL register.
*/
#define OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK (0x2 << 16)
/*
* OMAP4 prcm_mod u32 fields contain packed data: the CM ID in bit 16 and
* the PRCM module offset address (from the CM module base) in bits 15-0.
*/
#define OMAP4_PRCM_MOD_CM_ID_SHIFT 16
#define OMAP4_PRCM_MOD_OFFS_MASK 0xffff
#include "cm-regbits-44xx.h"
/**
* omap4_cm_wait_idlest_ready - wait for a module to leave idle or standby