提交 6a2b5343 编写于 作者: G Gregory CLEMENT 提交者: Jason Cooper

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: NGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1406120453-29291-10-git-send-email-thomas.petazzoni@free-electrons.comSigned-off-by: NJason Cooper <jason@lakedaemon.net>
上级 5da964e0
......@@ -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
......
......@@ -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
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