diff options
Diffstat (limited to 'plat/nvidia/tegra/soc/t186/plat_setup.c')
| -rw-r--r-- | plat/nvidia/tegra/soc/t186/plat_setup.c | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/soc/t186/plat_setup.c b/plat/nvidia/tegra/soc/t186/plat_setup.c new file mode 100644 index 0000000..d6d090a --- /dev/null +++ b/plat/nvidia/tegra/soc/t186/plat_setup.c @@ -0,0 +1,397 @@ +/* + * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2020, NVIDIA Corporation. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <assert.h> + +#include <arch_helpers.h> +#include <bl31/bl31.h> +#include <bl31/interrupt_mgmt.h> +#include <common/bl_common.h> +#include <common/debug.h> +#include <common/ep_info.h> +#include <common/interrupt_props.h> +#include <context.h> +#include <cortex_a57.h> +#include <denver.h> +#include <drivers/arm/gic_common.h> +#include <drivers/arm/gicv2.h> +#include <drivers/console.h> +#include <lib/el3_runtime/context_mgmt.h> +#include <lib/utils.h> +#include <lib/xlat_tables/xlat_tables_v2.h> +#include <plat/common/platform.h> + +#include <mce.h> +#include <memctrl.h> +#include <smmu.h> +#include <tegra_def.h> +#include <tegra_platform.h> +#include <tegra_private.h> + +extern void memcpy16(void *dest, const void *src, unsigned int length); + +/******************************************************************************* + * Tegra186 CPU numbers in cluster #0 + ******************************************************************************* + */ +#define TEGRA186_CLUSTER0_CORE2 2U +#define TEGRA186_CLUSTER0_CORE3 3U + +/******************************************************************************* + * The Tegra power domain tree has a single system level power domain i.e. a + * single root node. The first entry in the power domain descriptor specifies + * the number of power domains at the highest power level. + ******************************************************************************* + */ +static const uint8_t tegra_power_domain_tree_desc[] = { + /* No of root nodes */ + 1, + /* No of clusters */ + PLATFORM_CLUSTER_COUNT, + /* No of CPU cores - cluster0 */ + PLATFORM_MAX_CPUS_PER_CLUSTER, + /* No of CPU cores - cluster1 */ + PLATFORM_MAX_CPUS_PER_CLUSTER +}; + +/******************************************************************************* + * This function returns the Tegra default topology tree information. + ******************************************************************************/ +const uint8_t *plat_get_power_domain_tree_desc(void) +{ + return tegra_power_domain_tree_desc; +} + +/* + * Table of regions to map using the MMU. + */ +static const mmap_region_t tegra_mmap[] = { + MAP_REGION_FLAT(TEGRA_MISC_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_TSA_BASE, 0x20000U, /* 128KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_MC_STREAMID_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_MC_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_UARTA_BASE, 0x20000U, /* 128KB - UART A, B*/ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_UARTC_BASE, 0x20000U, /* 128KB - UART C, G */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_UARTD_BASE, 0x30000U, /* 192KB - UART D, E, F */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_FUSE_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_GICD_BASE, 0x20000U, /* 128KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_SE0_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_PKA1_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_RNG1_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_CAR_RESET_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_PMC_BASE, 0x40000U, /* 256KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_TMRUS_BASE, 0x1000U, /* 4KB */ + MT_DEVICE | MT_RO | MT_SECURE), + MAP_REGION_FLAT(TEGRA_SCRATCH_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_MMCRAB_BASE, 0x60000U, /* 384KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_ARM_ACTMON_CTR_BASE, 0x20000U, /* 128KB - ARM/Denver */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_SMMU0_BASE, 0x1000000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_HSP_DBELL_BASE, 0x10000U, /* 64KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_BPMP_IPC_TX_PHYS_BASE, TEGRA_BPMP_IPC_CH_MAP_SIZE, /* 4KB */ + MT_DEVICE | MT_RW | MT_SECURE), + MAP_REGION_FLAT(TEGRA_BPMP_IPC_RX_PHYS_BASE, TEGRA_BPMP_IPC_CH_MAP_SIZE, /* 4KB */ + 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 + ******************************************************************************/ +uint32_t plat_get_syscnt_freq2(void) +{ + return 31250000; +} + +/******************************************************************************* + * Maximum supported UART controllers + ******************************************************************************/ +#define TEGRA186_MAX_UART_PORTS 7 + +/******************************************************************************* + * This variable holds the UART port base addresses + ******************************************************************************/ +static uint32_t tegra186_uart_addresses[TEGRA186_MAX_UART_PORTS + 1] = { + 0, /* undefined - treated as an error case */ + TEGRA_UARTA_BASE, + TEGRA_UARTB_BASE, + TEGRA_UARTC_BASE, + TEGRA_UARTD_BASE, + TEGRA_UARTE_BASE, + TEGRA_UARTF_BASE, + TEGRA_UARTG_BASE, +}; + +/******************************************************************************* + * Enable console corresponding to the console ID + ******************************************************************************/ +void plat_enable_console(int32_t id) +{ + static console_t uart_console; + uint32_t console_clock; + + if ((id > 0) && (id < TEGRA186_MAX_UART_PORTS)) { + /* + * Reference clock used by the FPGAs is a lot slower. + */ + if (tegra_platform_is_fpga()) { + console_clock = TEGRA_BOOT_UART_CLK_13_MHZ; + } else { + console_clock = TEGRA_BOOT_UART_CLK_408_MHZ; + } + + (void)console_16550_register(tegra186_uart_addresses[id], + console_clock, + TEGRA_CONSOLE_BAUDRATE, + &uart_console); + console_set_scope(&uart_console, CONSOLE_FLAG_BOOT | + CONSOLE_FLAG_RUNTIME | CONSOLE_FLAG_CRASH); + } +} + +/******************************************************************************* + * Handler for early platform setup + ******************************************************************************/ +void plat_early_platform_setup(void) +{ + uint64_t impl, val; + const plat_params_from_bl2_t *plat_params = bl31_get_plat_params(); + const struct tegra_bl31_params *arg_from_bl2 = plat_get_bl31_params(); + + /* Verify chip id is t186 */ + assert(tegra_chipid_is_t186()); + + /* sanity check MCE firmware compatibility */ + mce_verify_firmware_version(); + + /* + * Do initial security configuration to allow DRAM/device access. + */ + tegra_memctrl_tzdram_setup(plat_params->tzdram_base, + (uint32_t)plat_params->tzdram_size); + + impl = (read_midr() >> MIDR_IMPL_SHIFT) & (uint64_t)MIDR_IMPL_MASK; + + /* + * Enable ECC and Parity Protection for Cortex-A57 CPUs (Tegra186 + * A02p and beyond). + */ + if ((plat_params->l2_ecc_parity_prot_dis != 1) && + (impl != (uint64_t)DENVER_IMPL)) { + + val = read_l2ctlr_el1(); + val |= CORTEX_A57_L2_ECC_PARITY_PROTECTION_BIT; + write_l2ctlr_el1(val); + } + + /* + * The previous bootloader might not have placed the BL32 image + * inside the TZDRAM. Platform handler to allow relocation of BL32 + * image to TZDRAM memory. This behavior might change per platform. + */ + plat_relocate_bl32_image(arg_from_bl2->bl32_image_info); +} + +/******************************************************************************* + * Handler for late platform setup + ******************************************************************************/ +void plat_late_platform_setup(void) +{ + ; /* do nothing */ +} + +/* Secure IRQs for Tegra186 */ +static const interrupt_prop_t tegra186_interrupt_props[] = { + INTR_PROP_DESC(TEGRA_SDEI_SGI_PRIVATE, PLAT_SDEI_CRITICAL_PRI, + GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE), + INTR_PROP_DESC(TEGRA186_TOP_WDT_IRQ, PLAT_TEGRA_WDT_PRIO, + GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE), + INTR_PROP_DESC(TEGRA186_AON_WDT_IRQ, PLAT_TEGRA_WDT_PRIO, + GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE) +}; + +/******************************************************************************* + * Initialize the GIC and SGIs + ******************************************************************************/ +void plat_gic_setup(void) +{ + tegra_gic_setup(tegra186_interrupt_props, ARRAY_SIZE(tegra186_interrupt_props)); + tegra_gic_init(); + + /* + * Initialize the FIQ handler only if the platform supports any + * FIQ interrupt sources. + */ + tegra_fiq_handler_setup(); +} + +/******************************************************************************* + * Return pointer to the BL31 params from previous bootloader + ******************************************************************************/ +struct tegra_bl31_params *plat_get_bl31_params(void) +{ + uint32_t val; + + val = mmio_read_32(TEGRA_SCRATCH_BASE + SCRATCH_BL31_PARAMS_ADDR); + + return (struct tegra_bl31_params *)(uintptr_t)val; +} + +/******************************************************************************* + * Return pointer to the BL31 platform params from previous bootloader + ******************************************************************************/ +plat_params_from_bl2_t *plat_get_bl31_plat_params(void) +{ + uint32_t val; + + val = mmio_read_32(TEGRA_SCRATCH_BASE + SCRATCH_BL31_PLAT_PARAMS_ADDR); + + return (plat_params_from_bl2_t *)(uintptr_t)val; +} + +/******************************************************************************* + * This function implements a part of the critical interface between the psci + * generic layer and the platform that allows the former to query the platform + * to convert an MPIDR to a unique linear index. An error code (-1) is returned + * in case the MPIDR is invalid. + ******************************************************************************/ +int32_t plat_core_pos_by_mpidr(u_register_t mpidr) +{ + u_register_t cluster_id, cpu_id, pos; + int32_t ret; + + cluster_id = (mpidr >> (u_register_t)MPIDR_AFF1_SHIFT) & (u_register_t)MPIDR_AFFLVL_MASK; + cpu_id = (mpidr >> (u_register_t)MPIDR_AFF0_SHIFT) & (u_register_t)MPIDR_AFFLVL_MASK; + + /* + * Validate cluster_id by checking whether it represents + * one of the two clusters present on the platform. + * Validate cpu_id by checking whether it represents a CPU in + * one of the two clusters present on the platform. + */ + if ((cluster_id >= (u_register_t)PLATFORM_CLUSTER_COUNT) || + (cpu_id >= (u_register_t)PLATFORM_MAX_CPUS_PER_CLUSTER)) { + ret = PSCI_E_NOT_PRESENT; + } else { + /* calculate the core position */ + pos = cpu_id + (cluster_id << 2U); + + /* check for non-existent CPUs */ + if ((pos == TEGRA186_CLUSTER0_CORE2) || (pos == TEGRA186_CLUSTER0_CORE3)) { + ret = PSCI_E_NOT_PRESENT; + } else { + ret = (int32_t)pos; + } + } + + return ret; +} + +/******************************************************************************* + * Handler to relocate BL32 image to TZDRAM + ******************************************************************************/ +void plat_relocate_bl32_image(const image_info_t *bl32_img_info) +{ + const plat_params_from_bl2_t *plat_bl31_params = plat_get_bl31_plat_params(); + const entry_point_info_t *bl32_ep_info = bl31_plat_get_next_image_ep_info(SECURE); + uint64_t tzdram_start, tzdram_end, bl32_start, bl32_end; + + if ((bl32_img_info != NULL) && (bl32_ep_info != NULL)) { + + /* Relocate BL32 if it resides outside of the TZDRAM */ + tzdram_start = plat_bl31_params->tzdram_base; + tzdram_end = plat_bl31_params->tzdram_base + + plat_bl31_params->tzdram_size; + bl32_start = bl32_img_info->image_base; + bl32_end = bl32_img_info->image_base + bl32_img_info->image_size; + + assert(tzdram_end > tzdram_start); + assert(bl32_end > bl32_start); + assert(bl32_ep_info->pc > tzdram_start); + assert(bl32_ep_info->pc < tzdram_end); + + /* relocate BL32 */ + if ((bl32_start >= tzdram_end) || (bl32_end <= tzdram_start)) { + + INFO("Relocate BL32 to TZDRAM\n"); + + (void)memcpy16((void *)(uintptr_t)bl32_ep_info->pc, + (void *)(uintptr_t)bl32_start, + bl32_img_info->image_size); + + /* clean up non-secure intermediate buffer */ + zeromem((void *)(uintptr_t)bl32_start, + bl32_img_info->image_size); + } + } +} + +/******************************************************************************* + * Handler to indicate support for System Suspend + ******************************************************************************/ +bool plat_supports_system_suspend(void) +{ + return true; +} +/******************************************************************************* + * Platform specific runtime setup. + ******************************************************************************/ +void plat_runtime_setup(void) +{ + /* + * During cold boot, it is observed that the arbitration + * bit is set in the Memory controller leading to false + * error interrupts in the non-secure world. To avoid + * this, clean the interrupt status register before + * booting into the non-secure world + */ + tegra_memctrl_clear_pending_interrupts(); + + /* + * During boot, USB3 and flash media (SDMMC/SATA) devices need + * access to IRAM. Because these clients connect to the MC and + * do not have a direct path to the IRAM, the MC implements AHB + * redirection during boot to allow path to IRAM. In this mode + * accesses to a programmed memory address aperture are directed + * to the AHB bus, allowing access to the IRAM. This mode must be + * disabled before we jump to the non-secure world. + */ + tegra_memctrl_disable_ahb_redirection(); + + /* + * Verify the integrity of the previously configured SMMU(s) + * settings + */ + tegra_smmu_verify(); +} |