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ARM: OMAP3/OMAP4: PRM: add prm_features flags and add IO wakeup under it 

prm_features flag will contain SoC specific feature enabler flags. Initially
IO wakeup is added under this. Helps to get rid of runtime cpu_is_X checks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Tero Kristo 2014-03-31 18:15:44 +03:00 committed by Paul Walmsley
parent 81243651ba
commit 2541d15f16
4 changed files with 23 additions and 1 deletions
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8
arch/arm/mach-omap2/prm.h
View File

@ -17,10 +17,18 @@
# ifndef __ASSEMBLER__
extern void __iomem *prm_base;
extern u16 prm_features;
extern void omap2_set_globals_prm(void __iomem *prm);
int of_prcm_init(void);
# endif
/*
* prm_features flag values
*
* PRM_HAS_IO_WAKEUP: has IO wakeup capability
* PRM_HAS_VOLTAGE: has voltage domains
*/
#define PRM_HAS_IO_WAKEUP (1 << 0)
/*
* MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP

8
arch/arm/mach-omap2/prm3xxx.c
View File

@ -247,7 +247,7 @@ void omap3xxx_prm_reconfigure_io_chain(void)
*/
static void __init omap3xxx_prm_enable_io_wakeup(void)
{
if (omap3_has_io_wakeup())
if (prm_features & PRM_HAS_IO_WAKEUP)
omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,
PM_WKEN);
}
@ -407,6 +407,9 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
int __init omap3xxx_prm_init(void)
{
if (omap3_has_io_wakeup())
prm_features |= PRM_HAS_IO_WAKEUP;
return prm_register(&omap3xxx_prm_ll_data);
}
@ -417,6 +420,9 @@ static int __init omap3xxx_prm_late_init(void)
if (!cpu_is_omap34xx())
return 0;
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
omap3xxx_prm_enable_io_wakeup();
ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
if (!ret)

6
arch/arm/mach-omap2/prm44xx.c
View File

@ -661,6 +661,9 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
int __init omap44xx_prm_init(void)
{
if (cpu_is_omap44xx())
prm_features |= PRM_HAS_IO_WAKEUP;
return prm_register(&omap44xx_prm_ll_data);
}
@ -669,6 +672,9 @@ static int __init omap44xx_prm_late_init(void)
if (!cpu_is_omap44xx())
return 0;
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
omap44xx_prm_enable_io_wakeup();
return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);

2
arch/arm/mach-omap2/prm_common.c
View File

@ -62,6 +62,8 @@ static struct omap_prcm_irq_setup *prcm_irq_setup;
/* prm_base: base virtual address of the PRM IP block */
void __iomem *prm_base;
u16 prm_features;
/*
* prm_ll_data: function pointers to SoC-specific implementations of
* common PRM functions