feat(tegra): implement 'pwr_domain_off_early' handler
This patch implements the pwr_domain_off_early handler for
Tegra platforms.
Powering off the boot core on some Tegra platforms is not
allowed and the SOC specific helper functions for Tegra194,
Tegra210 and Tegra186 implement this restriction.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I9d06e0eee12314764adb0422e023a5bec6ed9c1e
diff --git a/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c b/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c
index 7f73ea5..2ec044c 100644
--- a/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c
+++ b/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c
@@ -575,6 +575,16 @@
return PSCI_E_SUCCESS;
}
+int32_t tegra_soc_pwr_domain_off_early(const psci_power_state_t *target_state)
+{
+ /* Do not power off the boot CPU */
+ if (plat_is_my_cpu_primary()) {
+ return PSCI_E_DENIED;
+ }
+
+ return PSCI_E_SUCCESS;
+}
+
int tegra_soc_pwr_domain_off(const psci_power_state_t *target_state)
{
tegra_fc_cpu_off(read_mpidr() & MPIDR_CPU_MASK);