/* * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> #include <cpu.h> #include <dm.h> #include <errno.h> #include <asm/cpu.h> DECLARE_GLOBAL_DATA_PTR; int cpu_x86_bind(struct udevice *dev) { struct cpu_platdata *plat = dev_get_parent_platdata(dev); plat->cpu_id = fdtdec_get_int(gd->fdt_blob, dev->of_offset, "intel,apic-id", -1); return 0; } int cpu_x86_get_desc(struct udevice *dev, char *buf, int size) { if (size < CPU_MAX_NAME_LEN) return -ENOSPC; cpu_get_name(buf); return 0; } static int cpu_x86_get_count(struct udevice *dev) { int node, cpu; int num = 0; node = fdt_path_offset(gd->fdt_blob, "/cpus"); if (node < 0) return -ENOENT; for (cpu = fdt_first_subnode(gd->fdt_blob, node); cpu >= 0; cpu = fdt_next_subnode(gd->fdt_blob, cpu)) { const char *device_type; device_type = fdt_getprop(gd->fdt_blob, cpu, "device_type", NULL); if (!device_type) continue; if (strcmp(device_type, "cpu") == 0) num++; } return num; } static const struct cpu_ops cpu_x86_ops = { .get_desc = cpu_x86_get_desc, .get_count = cpu_x86_get_count, }; static const struct udevice_id cpu_x86_ids[] = { { .compatible = "cpu-x86" }, { } }; U_BOOT_DRIVER(cpu_x86_drv) = { .name = "cpu_x86", .id = UCLASS_CPU, .of_match = cpu_x86_ids, .bind = cpu_x86_bind, .ops = &cpu_x86_ops, };