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ARM: shmobile: r8a7790 SYSC setup code

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Add r8a7790 SYSC power management support.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Converted to use broken out SYSC code]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Hisashi Nakamura 2014-01-15 21:25:49 +09:00 committed by Simon Horman
parent a6557eb795
commit a48f165509
3 changed files with 47 additions and 0 deletions
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1
arch/arm/mach-shmobile/Makefile
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@ -53,6 +53,7 @@ obj-$(CONFIG_ARCH_SH7372) += pm-sh7372.o sleep-sh7372.o pm-rmobile.o
obj-$(CONFIG_ARCH_SH73A0) += pm-sh73a0.o
obj-$(CONFIG_ARCH_R8A7740) += pm-r8a7740.o pm-rmobile.o
obj-$(CONFIG_ARCH_R8A7779) += pm-r8a7779.o pm-rcar.o
obj-$(CONFIG_ARCH_R8A7790) += pm-r8a7790.o pm-rcar.o
# Board objects
ifdef CONFIG_ARCH_SHMOBILE_MULTI

1
arch/arm/mach-shmobile/include/mach/r8a7790.h
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@ -7,6 +7,7 @@ void r8a7790_add_standard_devices(void);
void r8a7790_add_dt_devices(void);
void r8a7790_clock_init(void);
void r8a7790_pinmux_init(void);
void r8a7790_pm_init(void);
void r8a7790_init_early(void);
extern struct smp_operations r8a7790_smp_ops;

45
arch/arm/mach-shmobile/pm-r8a7790.c Normal file
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@ -0,0 +1,45 @@
/*
* r8a7790 Power management support
*
* Copyright (C) 2013 Renesas Electronics Corporation
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2011 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/kernel.h>
#include <asm/io.h>
#include <mach/pm-rcar.h>
#include <mach/r8a7790.h>
/* SYSC */
#define SYSCIER 0x0c
#define SYSCIMR 0x10
#if defined(CONFIG_SMP)
static void __init r8a7790_sysc_init(void)
{
void __iomem *base = rcar_sysc_init(0xe6180000);
/* enable all interrupt sources, but do not use interrupt handler */
iowrite32(0x0131000e, base + SYSCIER);
iowrite32(0, base + SYSCIMR);
}
#else /* CONFIG_SMP */
static inline void r8a7790_sysc_init(void) {}
#endif /* CONFIG_SMP */
void __init r8a7790_pm_init(void)
{
static int once;
if (!once++)
r8a7790_sysc_init();
}