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| author | Rob Herring <rob.herring@calxeda.com> | 2012-12-30 17:15:07 +0100 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-08 06:08:26 +0100 |
| commit | 1ddda1cd235e05961bada337f87494272701c189 (patch) | |
| tree | 244089a86431a7cf4c03628639b99b13de2ad860 /arch | |
| parent | ARM: highbank: add a power request clear (diff) | |
| download | linux-1ddda1cd235e05961bada337f87494272701c189.tar.xz linux-1ddda1cd235e05961bada337f87494272701c189.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-highbank/pm.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c index 0f4ffd6d47c4..04eddb4f4380 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; } |