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| author |   Gaku Inami <gaku.inami.xw@bp.renesas.com> | 2014-01-15 21:26:04 +0900 |
|---|---|---|
| committer |   Simon Horman <horms+renesas@verge.net.au> | 2014-02-24 08:55:47 +0900 |
| commit | 0445ded61aac0c1a6f43b4be1a2ca2ca47b77eb8 (patch) | |
| tree | 1ba15bc47d29e78b69caa6b2b273fcb4df06348e /arch/arm/mach-shmobile | |
| parent | ARM: shmobile: r8a7790 SYSC setup code (diff) | |
| download | linux-dev-0445ded61aac0c1a6f43b4be1a2ca2ca47b77eb8.tar.xz linux-dev-0445ded61aac0c1a6f43b4be1a2ca2ca47b77eb8.zip | |
ARM: shmobile: r8a7790 CA7-SCU enablement
Power on CA7 SCU in case of booting from a CA15 core.
Signed-off-by: Gaku Inami <gaku.inami.xw@bp.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/smp-r8a7790.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/smp-r8a7790.c b/arch/arm/mach-shmobile/smp-r8a7790.c index 015e2753de1f..beb47ae9d05a 100644 --- a/arch/arm/mach-shmobile/smp-r8a7790.c +++ b/arch/arm/mach-shmobile/smp-r8a7790.c @@ -19,6 +19,8 @@ #include <linux/io.h> #include <asm/smp_plat.h> #include <mach/common.h> +#include <mach/pm-rcar.h> +#include <mach/r8a7790.h> #define RST 0xe6160000 #define CA15BAR 0x0020 @@ -27,6 +29,11 @@ #define CA7RESCNT 0x0044 #define MERAM 0xe8080000 +static struct rcar_sysc_ch r8a7790_ca7_scu = { + .chan_offs = 0x100, /* PWRSR3 .. PWRER3 */ + .isr_bit = 21, /* CA7-SCU */ +}; + static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus) { void __iomem *p; @@ -54,6 +61,10 @@ static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus) writel_relaxed((readl_relaxed(p + CA7RESCNT) & ~0x0f) | 0x5a5a0000, p + CA7RESCNT); iounmap(p); + + /* turn on power to SCU */ + r8a7790_pm_init(); + rcar_sysc_power_up(&r8a7790_ca7_scu); } struct smp_operations r8a7790_smp_ops __initdata = { |