Commit 18b4788b authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge tag 'omap-for-v4.17/am-pm-signed' of... 

Merge tag 'omap-for-v4.17/am-pm-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Pull "Add am335x and am437x PM code for v4.17" from Tony Lindgren:

This series of changes from Dave Gerlach adds the PM related
code to allow low-power suspend states. The code consists of
the SoC specific assembly code and a related PM driver.

* tag 'omap-for-v4.17/am-pm-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  soc: ti: Add pm33xx driver for basic suspend support
  ARM: OMAP2+: pm33xx-core: Add platform code needed for PM
  ARM: OMAP2+: Introduce low-level suspend code for AM43XX
  ARM: OMAP2+: Introduce low-level suspend code for AM33XX
parents 6f566c4f afe761f8

Documentation/devicetree/bindings/arm/omap/mpu.txt

+16 −0
Original line number Diff line number Diff line
@@ -13,6 +13,13 @@ Required properties: 
Optional properties:

- sram:	Phandle to the ocmcram node



am335x and am437x only:

- pm-sram: Phandles to ocmcram nodes to be used for power management.

	   First should be type 'protect-exec' for the driver to use to copy

	   and run PM functions, second should be regular pool to be used for

	   data region for code. See Documentation/devicetree/bindings/sram/sram.txt

	   for more details.



Examples:



- For an OMAP5 SMP system:
@@ -36,3 +43,12 @@ mpu { 
    compatible = "ti,omap3-mpu";

    ti,hwmods = "mpu";

};



- For an AM335x system:



mpu {

	compatible = "ti,omap3-mpu";

	ti,hwmods = "mpu";

	pm-sram = <&pm_sram_code

		   &pm_sram_data>;

};

arch/arm/mach-omap2/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -72,6 +72,7 @@ config SOC_AM43XX 
	select ARM_ERRATA_754322

	select ARM_ERRATA_775420

	select OMAP_INTERCONNECT

	select ARM_CPU_SUSPEND if PM



config SOC_DRA7XX

	bool "TI DRA7XX"

arch/arm/mach-omap2/Makefile

+16 −0
Original line number Diff line number Diff line
@@ -88,6 +88,8 @@ omap-4-5-pm-common += pm44xx.o 
obj-$(CONFIG_ARCH_OMAP4)		+= $(omap-4-5-pm-common)

obj-$(CONFIG_SOC_OMAP5)			+= $(omap-4-5-pm-common)

obj-$(CONFIG_SOC_DRA7XX)		+= $(omap-4-5-pm-common)

obj-$(CONFIG_SOC_AM33XX)		+= pm33xx-core.o sleep33xx.o

obj-$(CONFIG_SOC_AM43XX)		+= pm33xx-core.o sleep43xx.o

obj-$(CONFIG_PM_DEBUG)			+= pm-debug.o



obj-$(CONFIG_POWER_AVS_OMAP)		+= sr_device.o
@@ -95,6 +97,8 @@ obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o 


AFLAGS_sleep24xx.o			:=-Wa,-march=armv6

AFLAGS_sleep34xx.o			:=-Wa,-march=armv7-a$(plus_sec)

AFLAGS_sleep33xx.o			:=-Wa,-march=armv7-a$(plus_sec)

AFLAGS_sleep43xx.o			:=-Wa,-march=armv7-a$(plus_sec)



endif
@@ -232,3 +236,15 @@ obj-y += $(omap-hsmmc-m) $(omap-hsmmc-y) 
obj-y					+= omap_phy_internal.o



obj-$(CONFIG_MACH_OMAP2_TUSB6010)	+= usb-tusb6010.o



arch/arm/mach-omap2/pm-asm-offsets.s: arch/arm/mach-omap2/pm-asm-offsets.c

	$(call if_changed_dep,cc_s_c)



include/generated/ti-pm-asm-offsets.h: arch/arm/mach-omap2/pm-asm-offsets.s FORCE

	$(call filechk,offsets,__TI_PM_ASM_OFFSETS_H__)



# For rule to generate ti-emif-asm-offsets.h dependency

include drivers/memory/Makefile.asm-offsets



arch/arm/mach-omap2/sleep33xx.o: include/generated/ti-pm-asm-offsets.h include/generated/ti-emif-asm-offsets.h

arch/arm/mach-omap2/sleep43xx.o: include/generated/ti-pm-asm-offsets.h include/generated/ti-emif-asm-offsets.h

arch/arm/mach-omap2/common.h

+7 −0
Original line number Diff line number Diff line
@@ -77,6 +77,13 @@ static inline int omap4_pm_init_early(void) 
}

#endif



#if defined(CONFIG_PM) && (defined(CONFIG_SOC_AM33XX) || \

	defined(CONFIG_SOC_AM43XX))

void amx3_common_pm_init(void);

#else

static inline void amx3_common_pm_init(void) { }

#endif



extern void omap2_init_common_infrastructure(void);



extern void omap_init_time(void);

arch/arm/mach-omap2/io.c

+2 −0
Original line number Diff line number Diff line
@@ -622,6 +622,7 @@ void __init am33xx_init_early(void) 
void __init am33xx_init_late(void)

{

	omap_common_late_init();

	amx3_common_pm_init();

}

#endif
@@ -646,6 +647,7 @@ void __init am43xx_init_late(void) 
{

	omap_common_late_init();

	omap2_clk_enable_autoidle_all();

	amx3_common_pm_init();

}

#endif

CRA Git | Maintained and supported by SUSTech CRA and CCSE