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/include/pm_svc_main.h b/plat/xilinx/common/include/pm_svc_main.h
index 4cf7727..67fbeae 100644
--- a/plat/xilinx/common/include/pm_svc_main.h
+++ b/plat/xilinx/common/include/pm_svc_main.h
@@ -10,6 +10,8 @@
#include <pm_common.h>
+extern bool pwrdwn_req_received;
+
/******************************************************************************/
/**
* SECURE_REDUNDANT_CALL() - Adds redundancy to the function call. This is to
@@ -30,6 +32,7 @@
status_tmp = function(__VA_ARGS__); \
}
+void request_cpu_pwrdwn(void);
int32_t pm_setup(void);
uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
uint64_t x4, const void *cookie, void *handle,