From: Gregory CLEMENT Date: Wed, 23 Jul 2014 13:00:46 +0000 (+0200) Subject: ARM: mvebu: export the SCU address X-Git-Tag: v3.17-rc1~79^2~8^2~3^2~5 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6a2b5343e23b177e684f97302f30696dfcfe0af4;p=linux.git 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 Signed-off-by: Thomas Petazzoni Link: https://lkml.kernel.org/r/1406120453-29291-10-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper --- 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