diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2016-02-26 11:09:21 -0800 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2017-03-20 09:15:28 -0700 |
| commit | 1f586a71377011c362eded70c39c1efb97950d9a (patch) | |
| tree | 45d9c5208cd2149d2a425b50adb74d6984c8950c /plat/nvidia/tegra/soc/t186/plat_psci_handlers.c | |
| parent | 50cd8646c58e68c0ff96e43724fe6029b459e4a4 (diff) | |
Tegra186: disable DCO operations for PSCI_CPU_OFF
This patch disables the DCO operations when we turn OFF a
CPU. DCO operations are still ON when a CPU enters a power
down suspend state.
Change-Id: I954a800209ffcc9ab43a77f04040608cbbbd9055
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'plat/nvidia/tegra/soc/t186/plat_psci_handlers.c')
| -rw-r--r-- | plat/nvidia/tegra/soc/t186/plat_psci_handlers.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/soc/t186/plat_psci_handlers.c b/plat/nvidia/tegra/soc/t186/plat_psci_handlers.c index e91d82fb..1a77c5bf 100644 --- a/plat/nvidia/tegra/soc/t186/plat_psci_handlers.c +++ b/plat/nvidia/tegra/soc/t186/plat_psci_handlers.c @@ -139,6 +139,7 @@ int tegra_soc_pwr_domain_off(const psci_power_state_t *target_state) { cpu_context_t *ctx = cm_get_context(NON_SECURE); gp_regs_t *gp_regs = get_gpregs_ctx(ctx); + int impl = (read_midr() >> MIDR_IMPL_SHIFT) & MIDR_IMPL_MASK; assert(ctx); assert(gp_regs); @@ -150,6 +151,10 @@ int tegra_soc_pwr_domain_off(const psci_power_state_t *target_state) mce_command_handler(MCE_CMD_UPDATE_CSTATE_INFO, TEGRA_ARI_CLUSTER_CC7, 0, TEGRA_ARI_SYSTEM_SC7); + /* Disable Denver's DCO operations */ + if (impl == DENVER_IMPL) + denver_disable_dco(); + /* Turn off CPU */ return mce_command_handler(MCE_CMD_ENTER_CSTATE, TEGRA_ARI_CORE_C7, MCE_CORE_SLEEP_TIME_INFINITE, 0); |