Commit 6a2b5343 authored by Gregory CLEMENT's avatar Gregory CLEMENT Committed by Jason Cooper
Browse files

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: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarThomas 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: default avatarJason Cooper <jason@lakedaemon.net>
parent 5da964e0

arch/arm/mach-mvebu/board-v7.c

+7 −2
Original line number Diff line number Diff line
@@ -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

arch/arm/mach-mvebu/common.h

+2 −0
Original line number Diff line number Diff line
@@ -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