diff options
Diffstat (limited to 'src/soc/nvidia/tegra132')
| -rw-r--r-- | src/soc/nvidia/tegra132/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra132/psci.c | 46 |
2 files changed, 47 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra132/Makefile.inc b/src/soc/nvidia/tegra132/Makefile.inc index 5cdf8e2003..117f629b46 100644 --- a/src/soc/nvidia/tegra132/Makefile.inc +++ b/src/soc/nvidia/tegra132/Makefile.inc @@ -88,6 +88,7 @@ ramstage-y += ../tegra/usb.c ramstage-$(CONFIG_ARCH_USE_SECURE_MONITOR) += secmon.c secmon-$(CONFIG_ARCH_USE_SECURE_MONITOR) += cpu_lib.S +secmon-$(CONFIG_ARCH_USE_SECURE_MONITOR) += psci.c secmon-$(CONFIG_ARCH_USE_SECURE_MONITOR) += uart.c modules_arm-y += monotonic_timer.c diff --git a/src/soc/nvidia/tegra132/psci.c b/src/soc/nvidia/tegra132/psci.c new file mode 100644 index 0000000000..b039dfbe6f --- /dev/null +++ b/src/soc/nvidia/tegra132/psci.c @@ -0,0 +1,46 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#include <arch/psci.h> + +static size_t children_at_level(int parent_level, uint64_t mpidr) +{ + if (mpidr != 0) + return 0; + + /* T132 just has 2 cores. 0. Level 1 has 2 children at level 0. */ + switch (parent_level) { + case PSCI_AFFINITY_ROOT: + return 1; + case PSCI_AFFINITY_LEVEL_3: + return 1; + case PSCI_AFFINITY_LEVEL_2: + return 1; + case PSCI_AFFINITY_LEVEL_1: + return 2; + case PSCI_AFFINITY_LEVEL_0: + return 0; + default: + return 0; + } +} + +struct psci_soc_ops soc_psci_ops = { + .children_at_level = &children_at_level, +}; |