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Commit e1cb367d authored by Ezequiel Garcia's avatar Ezequiel Garcia Committed by Jason Cooper
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ARM: kirkwood: Add standby support 



Implements standby support for Kirkwood SoC. When the SoC enters
standby state the memory PM units are disabled, the DDR is set
in self-refresh mode, and the CPU is set in WFI.

At this point there's no clock gating, as that is considered each
driver's task.

Signed-off-by: default avatarSimon Guinot <sguinot@lacie.com>
Signed-off-by: default avatarEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: default avatarJason Cooper <jason@lakedaemon.net>
parent 272b98c6

arch/arm/mach-kirkwood/Makefile

+2 −0
Original line number Diff line number Diff line 
obj-y				+= common.o pcie.o

obj-$(CONFIG_KIRKWOOD_LEGACY)	+= irq.o mpp.o

obj-$(CONFIG_PM)		+= pm.o



obj-$(CONFIG_MACH_D2NET_V2)		+= d2net_v2-setup.o lacie_v2-common.o

obj-$(CONFIG_MACH_NET2BIG_V2)		+= netxbig_v2-setup.o lacie_v2-common.o

obj-$(CONFIG_MACH_NET5BIG_V2)		+= netxbig_v2-setup.o lacie_v2-common.o

arch/arm/mach-kirkwood/board-dt.c

+1 −0
Original line number Diff line number Diff line
@@ -101,6 +101,7 @@ static void __init kirkwood_dt_init(void) 
	/* Setup clocks for legacy devices */

	kirkwood_legacy_clk_init();



	kirkwood_pm_init();

	kirkwood_cpuidle_init();



#ifdef CONFIG_KEXEC

arch/arm/mach-kirkwood/common.c

+1 −0
Original line number Diff line number Diff line
@@ -721,6 +721,7 @@ void __init kirkwood_init(void) 
	kirkwood_xor1_init();

	kirkwood_crypto_init();



	kirkwood_pm_init();

	kirkwood_cpuidle_init();

#ifdef CONFIG_KEXEC

	kexec_reinit = kirkwood_enable_pcie;

arch/arm/mach-kirkwood/common.h

+6 −0
Original line number Diff line number Diff line
@@ -58,6 +58,12 @@ void kirkwood_cpufreq_init(void); 
void kirkwood_restart(enum reboot_mode, const char *);

void kirkwood_clk_init(void);



#ifdef CONFIG_PM

void kirkwood_pm_init(void);

#else

static inline void kirkwood_pm_init(void) {};

#endif



/* board init functions for boards not fully converted to fdt */

#ifdef CONFIG_MACH_MV88F6281GTW_GE_DT

void mv88f6281gtw_ge_init(void);

arch/arm/mach-kirkwood/include/mach/bridge-regs.h

+2 −0
Original line number Diff line number Diff line
@@ -78,4 +78,6 @@ 
#define CGC_TDM			(1 << 20)

#define CGC_RESERVED		(0x6 << 21)



#define MEMORY_PM_CTRL		(BRIDGE_VIRT_BASE + 0x118)



#endif