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Commit 8b697912 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge branch 'imx/pm' of git://git.linaro.org/people/shawnguo/linux-2.6 into imx6/pm

parents 5f0a6e2d 733d1724

arch/arm/mach-imx/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -595,6 +595,7 @@ comment "i.MX6 family:" 


config SOC_IMX6Q

	bool "i.MX6 Quad support"

	select ARM_CPU_SUSPEND if PM

	select ARM_GIC

	select CACHE_L2X0

	select CPU_V7

arch/arm/mach-imx/Makefile

+5 −1
Original line number Diff line number Diff line
@@ -70,4 +70,8 @@ AFLAGS_head-v7.o :=-Wa,-march=armv7-a 
obj-$(CONFIG_SMP) += platsmp.o

obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o

obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o

obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o pm-imx6q.o
 
obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o



ifeq ($(CONFIG_PM),y)

obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o

endif

arch/arm/mach-imx/head-v7.S

+11 −4
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ ENTRY(v7_secondary_startup) 
ENDPROC(v7_secondary_startup)

#endif



#ifdef CONFIG_PM

/*

 * The following code is located into the .data section.  This is to

 * allow phys_l2x0_saved_regs to be accessed with a relative load
@@ -79,6 +80,7 @@ ENDPROC(v7_secondary_startup) 
	.data

	.align



#ifdef CONFIG_CACHE_L2X0

	.macro	pl310_resume

	ldr	r2, phys_l2x0_saved_regs

	ldr	r0, [r2, #L2X0_R_PHY_BASE]	@ get physical base of l2x0
@@ -88,12 +90,17 @@ ENDPROC(v7_secondary_startup) 
	str	r1, [r0, #L2X0_CTRL]		@ re-enable L2

	.endm



	.globl	phys_l2x0_saved_regs

phys_l2x0_saved_regs:

        .long   0

#else

	.macro	pl310_resume

	.endm

#endif



ENTRY(v7_cpu_resume)

	bl	v7_invalidate_l1

	pl310_resume

	b	cpu_resume

ENDPROC(v7_cpu_resume)



	.globl	phys_l2x0_saved_regs

phys_l2x0_saved_regs:

        .long   0
 
#endif

arch/arm/mach-imx/pm-imx6q.c

+2 −0
Original line number Diff line number Diff line
@@ -64,7 +64,9 @@ void __init imx6q_pm_init(void) 
	 * address of the data structure used by l2x0 core to save registers,

	 * and later restore the necessary ones in imx6q resume entry.

	 */

#ifdef CONFIG_CACHE_L2X0

	phys_l2x0_saved_regs = __pa(&l2x0_saved_regs);

#endif



	suspend_set_ops(&imx6q_pm_ops);

}

arch/arm/mach-mx5/mm.c

+18 −1
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 


#include <linux/mm.h>

#include <linux/init.h>

#include <linux/clk.h>



#include <asm/mach/map.h>
@@ -21,10 +22,26 @@ 
#include <mach/devices-common.h>

#include <mach/iomux-v3.h>



static struct clk *gpc_dvfs_clk;



static void imx5_idle(void)

{

	if (!need_resched())

	if (!need_resched()) {

		/* gpc clock is needed for SRPG */

		if (gpc_dvfs_clk == NULL) {

			gpc_dvfs_clk = clk_get(NULL, "gpc_dvfs");

			if (IS_ERR(gpc_dvfs_clk))

				goto err0;

		}

		clk_enable(gpc_dvfs_clk);

		mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);

		if (tzic_enable_wake())

			goto err1;

		cpu_do_idle();

err1:

		clk_disable(gpc_dvfs_clk);

	}

err0:

	local_irq_enable();

}