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| author | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2014-07-23 15:00:46 +0200 |
|---|---|---|
| committer | Jason Cooper <jason@lakedaemon.net> | 2014-07-24 11:46:40 +0000 |
| commit | 6a2b5343e23b177e684f97302f30696dfcfe0af4 (patch) | |
| tree | d493c926ac8ebafd98b3a87194db6d6747016dfa /arch/arm/mach-mvebu | |
| parent | 5da964e0fae05fd96a97a0fcc6bc53dad655f61d (diff) | |
| download | linux-6a2b5343e23b177e684f97302f30696dfcfe0af4.tar.gz linux-6a2b5343e23b177e684f97302f30696dfcfe0af4.tar.bz2 linux-6a2b5343e23b177e684f97302f30696dfcfe0af4.zip | |
ARM: mvebu: export the SCU address
The SCU address will be needed in other files than board-v7.c,
especially in pmsu.c for cpuidle related activities. So this patch
adds a function that allows to retrieve the virtual address at which
the SCU has been mapped.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-10-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/board-v7.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/common.h | 2 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c index f244622ffc00..6478626e3ff6 100644 --- a/arch/arm/mach-mvebu/board-v7.c +++ b/arch/arm/mach-mvebu/board-v7.c @@ -34,14 +34,14 @@ #include "coherency.h" #include "mvebu-soc-id.h" +static void __iomem *scu_base; + /* * Enables the SCU when available. Obviously, this is only useful on * Cortex-A based SOCs, not on PJ4B based ones. */ static void __init mvebu_scu_enable(void) { - void __iomem *scu_base; - struct device_node *np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu"); if (np) { @@ -51,6 +51,11 @@ static void __init mvebu_scu_enable(void) } } +void __iomem *mvebu_get_scu_base(void) +{ + return scu_base; +} + /* * Early versions of Armada 375 SoC have a bug where the BootROM * leaves an external data abort pending. The kernel is hit by this diff --git a/arch/arm/mach-mvebu/common.h b/arch/arm/mach-mvebu/common.h index a97778e28bf6..3ccb40c3bf94 100644 --- a/arch/arm/mach-mvebu/common.h +++ b/arch/arm/mach-mvebu/common.h @@ -23,4 +23,6 @@ void mvebu_pmsu_set_cpu_boot_addr(int hw_cpu, void *boot_addr); void mvebu_system_controller_set_cpu_boot_addr(void *boot_addr); int mvebu_system_controller_get_soc_id(u32 *dev, u32 *rev); +void __iomem *mvebu_get_scu_base(void); + #endif |