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Commit 01c7031c authored by Claudiu Beznea's avatar Claudiu Beznea Committed by Ludovic Desroches
Browse files

ARM: at91: pm: initial PM support for SAM9X60 



Add initial PM support for SAM9X60. This include idle, WFI and ULP0.

Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: default avatarLudovic Desroches <ludovic.desroches@microchip.com>
parent db963027

arch/arm/mach-at91/at91sam9.c

+18 −0
Original line number Diff line number Diff line
@@ -32,3 +32,21 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM9") 
	.init_machine	= at91sam9_init,

	.dt_compat	= at91_dt_board_compat,

MACHINE_END



static void __init sam9x60_init(void)

{

	of_platform_default_populate(NULL, NULL, NULL);



	sam9x60_pm_init();

}



static const char *const sam9x60_dt_board_compat[] __initconst = {

	"microchip,sam9x60",

	NULL

};



DT_MACHINE_START(sam9x60_dt, "Microchip SAM9X60")

	/* Maintainer: Microchip */

	.init_machine	= sam9x60_init,

	.dt_compat	= sam9x60_dt_board_compat,

MACHINE_END

arch/arm/mach-at91/generic.h

+2 −0
Original line number Diff line number Diff line
@@ -14,11 +14,13 @@ 
#ifdef CONFIG_PM

extern void __init at91rm9200_pm_init(void);

extern void __init at91sam9_pm_init(void);

extern void __init sam9x60_pm_init(void);

extern void __init sama5_pm_init(void);

extern void __init sama5d2_pm_init(void);

#else

static inline void __init at91rm9200_pm_init(void) { }

static inline void __init at91sam9_pm_init(void) { }

static inline void __init sam9x60_pm_init(void) { }

static inline void __init sama5_pm_init(void) { }

static inline void __init sama5d2_pm_init(void) { }

#endif

arch/arm/mach-at91/pm.c

+14 −0
Original line number Diff line number Diff line
@@ -518,6 +518,11 @@ static void at91rm9200_idle(void) 
	writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR);

}



static void at91sam9x60_idle(void)

{

	cpu_do_idle();

}



static void at91sam9_idle(void)

{

	writel(AT91_PMC_PCK, soc_pm.data.pmc + AT91_PMC_SCDR);
@@ -754,6 +759,15 @@ void __init at91rm9200_pm_init(void) 
	at91_pm_init(at91rm9200_idle);

}



void __init sam9x60_pm_init(void)

{

	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))

		return;



	at91_dt_ramc();

	at91_pm_init(at91sam9x60_idle);

}



void __init at91sam9_pm_init(void)

{

	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))