diff options
Diffstat (limited to 'plat/nvidia/tegra/soc')
| -rw-r--r-- | plat/nvidia/tegra/soc/t210/plat_psci_handlers.c | 141 | ||||
| -rw-r--r-- | plat/nvidia/tegra/soc/t210/plat_secondary.c | 63 | ||||
| -rw-r--r-- | plat/nvidia/tegra/soc/t210/plat_setup.c | 69 | ||||
| -rw-r--r-- | plat/nvidia/tegra/soc/t210/platform_t210.mk | 51 |
4 files changed, 324 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c b/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c new file mode 100644 index 0000000..7ac784b --- /dev/null +++ b/plat/nvidia/tegra/soc/t210/plat_psci_handlers.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <arch_helpers.h> +#include <assert.h> +#include <debug.h> +#include <mmio.h> +#include <platform.h> +#include <platform_def.h> +#include <psci.h> +#include <pmc.h> +#include <flowctrl.h> +#include <tegra_def.h> +#include <tegra_private.h> + +/* Power down state IDs */ +#define PSTATE_ID_CORE_POWERDN 7 +#define PSTATE_ID_CLUSTER_IDLE 16 +#define PSTATE_ID_CLUSTER_POWERDN 17 +#define PSTATE_ID_SOC_POWERDN 27 + +static int cpu_powergate_mask[PLATFORM_MAX_CPUS_PER_CLUSTER]; + +int tegra_prepare_cpu_suspend(unsigned int id, unsigned int afflvl) +{ + /* There's nothing to be done for affinity level 1 */ + if (afflvl == MPIDR_AFFLVL1) + return PSCI_E_SUCCESS; + + switch (id) { + /* Prepare for cpu idle */ + case PSTATE_ID_CORE_POWERDN: + tegra_fc_cpu_idle(read_mpidr()); + return PSCI_E_SUCCESS; + + /* Prepare for cluster idle */ + case PSTATE_ID_CLUSTER_IDLE: + tegra_fc_cluster_idle(read_mpidr()); + return PSCI_E_SUCCESS; + + /* Prepare for cluster powerdn */ + case PSTATE_ID_CLUSTER_POWERDN: + tegra_fc_cluster_powerdn(read_mpidr()); + return PSCI_E_SUCCESS; + + /* Prepare for system idle */ + case PSTATE_ID_SOC_POWERDN: + + /* Enter system suspend state */ + tegra_pm_system_suspend_entry(); + + /* suspend the entire soc */ + tegra_fc_soc_powerdn(read_mpidr()); + + return PSCI_E_SUCCESS; + + default: + ERROR("Unknown state id (%d)\n", id); + break; + } + + return PSCI_E_NOT_SUPPORTED; +} + +int tegra_prepare_cpu_on_finish(unsigned long mpidr) +{ + /* + * Check if we are exiting from SOC_POWERDN. + */ + if (tegra_system_suspended()) { + + /* + * Restore Boot and Power Management Processor (BPMP) reset + * address and reset it. + */ + tegra_fc_reset_bpmp(); + + /* + * System resume complete. + */ + tegra_pm_system_suspend_exit(); + } + + /* + * T210 has a dedicated ARMv7 boot and power mgmt processor, BPMP. It's + * used for power management and boot purposes. Inform the BPMP that + * we have completed the cluster power up. + */ + if (psci_get_max_phys_off_afflvl() == MPIDR_AFFLVL1) + tegra_fc_lock_active_cluster(); + + return PSCI_E_SUCCESS; +} + +int tegra_prepare_cpu_on(unsigned long mpidr) +{ + int cpu = mpidr & MPIDR_CPU_MASK; + + /* Turn on CPU using flow controller or PMC */ + if (cpu_powergate_mask[cpu] == 0) { + tegra_pmc_cpu_on(cpu); + cpu_powergate_mask[cpu] = 1; + } else { + tegra_fc_cpu_on(cpu); + } + + return PSCI_E_SUCCESS; +} + +int tegra_prepare_cpu_off(unsigned long mpidr) +{ + tegra_fc_cpu_off(mpidr & MPIDR_CPU_MASK); + return PSCI_E_SUCCESS; +} diff --git a/plat/nvidia/tegra/soc/t210/plat_secondary.c b/plat/nvidia/tegra/soc/t210/plat_secondary.c new file mode 100644 index 0000000..fb3cf71 --- /dev/null +++ b/plat/nvidia/tegra/soc/t210/plat_secondary.c @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <debug.h> +#include <mmio.h> +#include <pmc.h> +#include <tegra_def.h> + +#define SB_CSR 0x0 +#define SB_CSR_NS_RST_VEC_WR_DIS (1 << 1) + +/* CPU reset vector */ +#define SB_AA64_RESET_LOW 0x30 /* width = 31:0 */ +#define SB_AA64_RESET_HI 0x34 /* width = 11:0 */ + +extern void tegra_secure_entrypoint(void); + +/******************************************************************************* + * Setup secondary CPU vectors + ******************************************************************************/ +void plat_secondary_setup(void) +{ + uint32_t val; + uint64_t reset_addr = (uint64_t)tegra_secure_entrypoint; + + INFO("Setting up secondary CPU boot\n"); + + /* setup secondary CPU vector */ + mmio_write_32(TEGRA_SB_BASE + SB_AA64_RESET_LOW, + (reset_addr & 0xFFFFFFFF) | 1); + val = reset_addr >> 32; + mmio_write_32(TEGRA_SB_BASE + SB_AA64_RESET_HI, val & 0x7FF); + + /* configure PMC */ + tegra_pmc_cpu_setup(reset_addr); +} diff --git a/plat/nvidia/tegra/soc/t210/plat_setup.c b/plat/nvidia/tegra/soc/t210/plat_setup.c new file mode 100644 index 0000000..cbe7a04 --- /dev/null +++ b/plat/nvidia/tegra/soc/t210/plat_setup.c @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <console.h> +#include <tegra_def.h> +#include <xlat_tables.h> + +/* sets of MMIO ranges setup */ +#define MMIO_RANGE_0_ADDR 0x50000000 +#define MMIO_RANGE_1_ADDR 0x60000000 +#define MMIO_RANGE_2_ADDR 0x70000000 +#define MMIO_RANGE_SIZE 0x200000 + +/* + * Table of regions to map using the MMU. + */ +static const mmap_region_t tegra_mmap[] = { + MAP_REGION_FLAT(MMIO_RANGE_0_ADDR, MMIO_RANGE_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(MMIO_RANGE_1_ADDR, MMIO_RANGE_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(MMIO_RANGE_2_ADDR, MMIO_RANGE_SIZE, + MT_DEVICE | MT_RW | MT_SECURE), + {0} +}; + +/******************************************************************************* + * Set up the pagetables as per the platform memory map & initialize the MMU + ******************************************************************************/ +const mmap_region_t *plat_get_mmio_map(void) +{ + /* MMIO space */ + return tegra_mmap; +} + +/******************************************************************************* + * Handler to get the System Counter Frequency + ******************************************************************************/ +uint64_t plat_get_syscnt_freq(void) +{ + return 19200000; +} diff --git a/plat/nvidia/tegra/soc/t210/platform_t210.mk b/plat/nvidia/tegra/soc/t210/platform_t210.mk new file mode 100644 index 0000000..41651d3 --- /dev/null +++ b/plat/nvidia/tegra/soc/t210/platform_t210.mk @@ -0,0 +1,51 @@ +# +# Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# +# Redistributions of source code must retain the above copyright notice, this +# list of conditions and the following disclaimer. +# +# Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# Neither the name of ARM nor the names of its contributors may be used +# to endorse or promote products derived from this software without specific +# prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# + +TEGRA_BOOT_UART_BASE := 0x70006000 +$(eval $(call add_define,TEGRA_BOOT_UART_BASE)) + +TZDRAM_BASE := 0xFDC00000 +$(eval $(call add_define,TZDRAM_BASE)) + +ERRATA_TEGRA_INVALIDATE_BTB_AT_BOOT := 1 +$(eval $(call add_define,ERRATA_TEGRA_INVALIDATE_BTB_AT_BOOT)) + +PLATFORM_CLUSTER_COUNT := 2 +$(eval $(call add_define,PLATFORM_CLUSTER_COUNT)) + +PLATFORM_MAX_CPUS_PER_CLUSTER := 4 +$(eval $(call add_define,PLATFORM_MAX_CPUS_PER_CLUSTER)) + +BL31_SOURCES += ${SOC_DIR}/plat_psci_handlers.c \ + ${SOC_DIR}/plat_setup.c \ + ${SOC_DIR}/plat_secondary.c + +# Enable workarounds for selected Cortex-A53 erratas. +ERRATA_A53_826319 := 1 |