feat(xilinx): request cpu power down from reset
Send subsystem restart notification to firmware when TF-A receives
system reset PSCI call. On receiving subsystem restart call, firmware
will send CPU idle callback to TF-A for powering down all cores. Wait
for CPU idle callback from firmware and raise power down request to
all cores after it receives CPU idle callback to power down core.
Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Change-Id: I50f417ae228017f38b648740dc90b2e8f1872620
diff --git a/plat/xilinx/common/pm_service/pm_svc_main.c b/plat/xilinx/common/pm_service/pm_svc_main.c
index 3a01dd2..9df9eb2 100644
--- a/plat/xilinx/common/pm_service/pm_svc_main.c
+++ b/plat/xilinx/common/pm_service/pm_svc_main.c
@@ -41,7 +41,7 @@
/* pm_up = true - UP, pm_up = false - DOWN */
static bool pm_up;
static uint32_t sgi = (uint32_t)INVALID_SGI;
-static bool pwrdwn_req_received;
+bool pwrdwn_req_received;
static void notify_os(void)
{
@@ -79,7 +79,7 @@
plat_ic_raise_el3_sgi(CPU_PWR_DOWN_REQ_INTR, mpidr);
}
-static void request_cpu_pwrdwn(void)
+void request_cpu_pwrdwn(void)
{
enum pm_ret_status ret;