diff --git a/plat/nvidia/tegra/common/aarch64/tegra_helpers.S b/plat/nvidia/tegra/common/aarch64/tegra_helpers.S index 2979b32..d9f287c 100644 --- a/plat/nvidia/tegra/common/aarch64/tegra_helpers.S +++ b/plat/nvidia/tegra/common/aarch64/tegra_helpers.S @@ -57,6 +57,28 @@ */ .macro cpu_init_common +#if ENABLE_L2_DYNAMIC_RETENTION + /* --------------------------- + * Enable processor retention + * --------------------------- + */ + mrs x0, L2ECTLR_EL1 + mov x1, #RETENTION_ENTRY_TICKS_512 << L2ECTLR_RET_CTRL_SHIFT + bic x0, x0, #L2ECTLR_RET_CTRL_MASK + orr x0, x0, x1 + msr L2ECTLR_EL1, x0 + isb +#endif + +#if ENABLE_CPU_DYNAMIC_RETENTION + mrs x0, CPUECTLR_EL1 + mov x1, #RETENTION_ENTRY_TICKS_512 << CPUECTLR_CPU_RET_CTRL_SHIFT + bic x0, x0, #CPUECTLR_CPU_RET_CTRL_MASK + orr x0, x0, x1 + msr CPUECTLR_EL1, x0 + isb +#endif + #if ENABLE_NS_L2_CPUECTRL_RW_ACCESS /* ------------------------------------------------------- * Enable L2 and CPU ECTLR RW access from non-secure world diff --git a/plat/nvidia/tegra/soc/t210/platform_t210.mk b/plat/nvidia/tegra/soc/t210/platform_t210.mk index ca7718c..5001629 100644 --- a/plat/nvidia/tegra/soc/t210/platform_t210.mk +++ b/plat/nvidia/tegra/soc/t210/platform_t210.mk @@ -40,6 +40,12 @@ ENABLE_NS_L2_CPUECTRL_RW_ACCESS := 1 $(eval $(call add_define,ENABLE_NS_L2_CPUECTRL_RW_ACCESS)) +ENABLE_L2_DYNAMIC_RETENTION := 1 +$(eval $(call add_define,ENABLE_L2_DYNAMIC_RETENTION)) + +ENABLE_CPU_DYNAMIC_RETENTION := 1 +$(eval $(call add_define,ENABLE_CPU_DYNAMIC_RETENTION)) + PLATFORM_CLUSTER_COUNT := 2 $(eval $(call add_define,PLATFORM_CLUSTER_COUNT))