diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/nvidia/tegra132/Kconfig | 3 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra132/soc.c | 88 |
2 files changed, 46 insertions, 45 deletions
diff --git a/src/soc/nvidia/tegra132/Kconfig b/src/soc/nvidia/tegra132/Kconfig index edb51ba597..d7e2786ffb 100644 --- a/src/soc/nvidia/tegra132/Kconfig +++ b/src/soc/nvidia/tegra132/Kconfig @@ -6,7 +6,6 @@ config SOC_NVIDIA_TEGRA132 select ARCH_ROMSTAGE_ARMV4 select ARCH_RAMSTAGE_ARMV8_64 select ARM64_CPUS_START_IN_EL3 - select DYNAMIC_CBMEM select BOOTBLOCK_CONSOLE select HAVE_MONOTONIC_TIMER select HAVE_HARD_RESET @@ -14,6 +13,8 @@ config SOC_NVIDIA_TEGRA132 select HAVE_UART_MEMORY_MAPPED select EARLY_CONSOLE select ARM_BOOTBLOCK_CUSTOM + select DYNAMIC_CBMEM + select SMP if SOC_NVIDIA_TEGRA132 diff --git a/src/soc/nvidia/tegra132/soc.c b/src/soc/nvidia/tegra132/soc.c index 16001f9fb3..f7df27926b 100644 --- a/src/soc/nvidia/tegra132/soc.c +++ b/src/soc/nvidia/tegra132/soc.c @@ -22,8 +22,8 @@ #include <console/console.h> #include <device/device.h> #include <arch/io.h> -#include <arch/cpu.h> #include <arch/cache.h> +#include <cpu/cpu.h> #include <cbmem.h> #include <timer.h> #include <vendorcode/google/chromeos/chromeos.h> @@ -40,7 +40,6 @@ static void soc_read_resources(device_t dev) int i; uintptr_t begin, end; size_t size; - printk(BIOS_DEBUG, "%s: entry, device = %p\n", __func__, dev); for (i = 0; i < CARVEOUT_NUM; i++) { carveout_range(i, &begin, &size); if (size == 0) @@ -63,8 +62,6 @@ static void soc_read_resources(device_t dev) ram_resource(dev, index++, begin * KiB, size * KiB); } -static volatile int secondary_cpu_up; - static void *spintable_entry; static uint64_t * const spintable_magic = (void *)(uintptr_t)0x80000008; @@ -90,7 +87,7 @@ static void spintable_init(void) dsb(); } -static void spintable_wait(void) +static void spintable_wait(void *monitor_address) { uint32_t sctlr_el2; uint32_t spsr_el3; @@ -118,56 +115,39 @@ static void spintable_wait(void) isb(); asm volatile( "mov x0, %0\n\t" - "eret\n\t" : : "r" (spintable_magic) : "x0" ); + "eret\n\t" : : "r" (monitor_address) : "x0" ); } -void soc_secondary_cpu_init(void) +static size_t cntrl_total_cpus(void) { - printk(BIOS_INFO, "CPU%d is up!\n", smp_processor_id()); - gic_init(); - dmb(); - secondary_cpu_up = 1; - spintable_wait(); + return CONFIG_MAX_CPUS; } -static void start_secondary_cpu(void) +static int cntrl_start_cpu(unsigned int id, void (*entry)(void)) { - struct mono_time t1, t2; - const long timeout_us = 20 * USECS_PER_MSEC; - - timer_monotonic_get(&t1); - start_cpu(1, prepare_secondary_cpu_startup()); - /* Wait for the other core to come up. */ - while (1) { - long waited_us; - - timer_monotonic_get(&t2); - waited_us = mono_time_diff_microseconds(&t1, &t2); - - if (secondary_cpu_up) { - printk(BIOS_INFO, "Secondary CPU start took %ld us.\n", - waited_us); - break; - } - if (waited_us > timeout_us) { - printk(BIOS_WARNING, "CPU startup timeout!\n"); - break; - } - } + if (id != 1) + return -1; + start_cpu(1, entry); + return 0; } +static struct cpu_control_ops cntrl_ops = { + .total_cpus = cntrl_total_cpus, + .start_cpu = cntrl_start_cpu, +}; + static void soc_init(device_t dev) { - struct soc_nvidia_tegra132_config *config = dev->chip_info; + struct cpu_action action = { + .run = spintable_wait, + .arg = spintable_magic, + }; - printk(BIOS_INFO, "CPU: Tegra132\n"); clock_init_arm_generic_timer(); - gic_init(); - if (config->bring_up_secondary_cpu) { - spintable_init(); - start_secondary_cpu(); - } + spintable_init(); + arch_initialize_cpus(dev, &cntrl_ops); + arch_run_on_cpu_async(1, &action); } static void soc_noop(device_t dev) @@ -179,12 +159,13 @@ static struct device_operations soc_ops = { .set_resources = soc_noop, .enable_resources = soc_noop, .init = soc_init, - .scan_bus = 0, + .scan_bus = NULL, }; static void enable_tegra132_dev(device_t dev) { - dev->ops = &soc_ops; + if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) + dev->ops = &soc_ops; } static void tegra132_init(void *chip_info) @@ -204,3 +185,22 @@ struct chip_operations soc_nvidia_tegra132_ops = { .init = tegra132_init, .enable_dev = enable_tegra132_dev, }; + +static void tegra132_cpu_init(device_t cpu) +{ + gic_init(); +} + +static const struct cpu_device_id ids[] = { + { 0x4e0f0000 }, + { CPU_ID_END }, +}; + +static struct device_operations cpu_dev_ops = { + .init = tegra132_cpu_init, +}; + +static const struct cpu_driver driver __cpu_driver = { + .ops = &cpu_dev_ops, + .id_table = ids, +}; |