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| author |   Hisashi Nakamura <hisashi.nakamura.ak@renesas.com> | 2014-01-15 21:25:49 +0900 |
|---|---|---|
| committer |   Simon Horman <horms+renesas@verge.net.au> | 2014-02-24 08:55:46 +0900 |
| commit | a48f165509c18d47f1505888a21918e8a06d590f (patch) | |
| tree | 39a87d44feb74b12ab66d5c1409f5693617301d3 /arch/arm/mach-shmobile | |
| parent | ARM: shmobile: Break out R-Car SYSC PM code (diff) | |
| download | linux-dev-a48f165509c18d47f1505888a21918e8a06d590f.tar.xz linux-dev-a48f165509c18d47f1505888a21918e8a06d590f.zip | |
ARM: shmobile: r8a7790 SYSC setup code
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>
Diffstat (limited to 'arch/arm/mach-shmobile')
| -rw-r--r-- | arch/arm/mach-shmobile/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/r8a7790.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/pm-r8a7790.c | 45 |
3 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index 7bc450c1708d..d38a6362e5f8 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -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 diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h index 5fbfa28b40b6..3389f0775def 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7790.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h @@ -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; diff --git a/arch/arm/mach-shmobile/pm-r8a7790.c b/arch/arm/mach-shmobile/pm-r8a7790.c new file mode 100644 index 000000000000..fc82839e2c2a --- /dev/null +++ b/arch/arm/mach-shmobile/pm-r8a7790.c @@ -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(); +} |