Juno: Implement PSCI SYSTEM_OFF and SYSTEM_RESET APIs
This patch adds the Juno platform specific handlers for PSCI
SYSTEM_OFF and SYSTEM_RESET operations.
Change-Id: Ie389adead533ec2314af44d721b4d0f306147c7d
diff --git a/plat/juno/plat_pm.c b/plat/juno/plat_pm.c
index 27a1227..74ce89f 100644
--- a/plat/juno/plat_pm.c
+++ b/plat/juno/plat_pm.c
@@ -30,6 +30,7 @@
#include <assert.h>
#include <arch_helpers.h>
+#include <debug.h>
#include <cci400.h>
#include <errno.h>
#include <platform.h>
@@ -239,6 +240,41 @@
}
/*******************************************************************************
+ * Juno handlers to shutdown/reboot the system
+ ******************************************************************************/
+static void __dead2 juno_system_off(void)
+{
+ uint32_t response;
+
+ /* Send the power down request to the SCP */
+ response = scpi_sys_power_state(scpi_system_shutdown);
+
+ if (response != SCP_OK) {
+ ERROR("Juno System Off: SCP error %u.\n", response);
+ panic();
+ }
+ wfi();
+ ERROR("Juno System Off: operation not handled.\n");
+ panic();
+}
+
+static void __dead2 juno_system_reset(void)
+{
+ uint32_t response;
+
+ /* Send the system reset request to the SCP */
+ response = scpi_sys_power_state(scpi_system_reboot);
+
+ if (response != SCP_OK) {
+ ERROR("Juno System Reset: SCP error %u.\n", response);
+ panic();
+ }
+ wfi();
+ ERROR("Juno System Reset: operation not handled.\n");
+ panic();
+}
+
+/*******************************************************************************
* Export the platform handlers to enable psci to invoke them
******************************************************************************/
static const plat_pm_ops_t juno_ops = {
@@ -246,7 +282,9 @@
.affinst_on_finish = juno_affinst_on_finish,
.affinst_off = juno_affinst_off,
.affinst_suspend = juno_affinst_suspend,
- .affinst_suspend_finish = juno_affinst_suspend_finish
+ .affinst_suspend_finish = juno_affinst_suspend_finish,
+ .system_off = juno_system_off,
+ .system_reset = juno_system_reset
};
/*******************************************************************************