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authorRob Herring <rob.herring@calxeda.com>2012-12-30 10:15:07 -0600
committerOlof Johansson <olof@lixom.net>2013-01-07 21:08:26 -0800
commit1ddda1cd235e05961bada337f87494272701c189 (patch)
tree244089a86431a7cf4c03628639b99b13de2ad860
parent9852910a0b0aa5548f990b51ad335921e0a710bf (diff)
downloadconfigs-1ddda1cd235e05961bada337f87494272701c189.tar.gz
ARM: highbank: save and restore L2 cache and GIC on suspend
This fixes suspend to RAM adding necessary save and restore of L2 and GIC. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>
-rw-r--r--arch/arm/mach-highbank/pm.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
index 0f4ffd6d47c..04eddb4f438 100644
--- a/arch/arm/mach-highbank/pm.c
+++ b/arch/arm/mach-highbank/pm.c
@@ -14,10 +14,12 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/cpu_pm.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/suspend.h>
+#include <asm/cacheflush.h>
#include <asm/proc-fns.h>
#include <asm/suspend.h>
@@ -26,16 +28,31 @@
static int highbank_suspend_finish(unsigned long val)
{
+ outer_flush_all();
+ outer_disable();
+
+ highbank_set_pwr_suspend();
+
cpu_do_idle();
+
+ highbank_clear_pwr_request();
return 0;
}
static int highbank_pm_enter(suspend_state_t state)
{
- highbank_set_pwr_suspend();
+ cpu_pm_enter();
+ cpu_cluster_pm_enter();
+
highbank_set_cpu_jump(0, cpu_resume);
cpu_suspend(0, highbank_suspend_finish);
+ cpu_cluster_pm_exit();
+ cpu_pm_exit();
+
+ highbank_smc1(0x102, 0x1);
+ if (scu_base_addr)
+ scu_enable(scu_base_addr);
return 0;
}