1 /* 2 * Copyright (C) 2015, Miao Yan <yanmiaobest@gmail.com> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <cpu.h> 9 #include <dm.h> 10 #include <errno.h> 11 #include <asm/cpu.h> 12 #include <asm/fw_cfg.h> 13 14 DECLARE_GLOBAL_DATA_PTR; 15 16 int cpu_qemu_get_desc(struct udevice *dev, char *buf, int size) 17 { 18 if (size < CPU_MAX_NAME_LEN) 19 return -ENOSPC; 20 21 cpu_get_name(buf); 22 23 return 0; 24 } 25 26 static int cpu_qemu_get_count(struct udevice *dev) 27 { 28 return qemu_fwcfg_online_cpus(); 29 } 30 31 static const struct cpu_ops cpu_qemu_ops = { 32 .get_desc = cpu_qemu_get_desc, 33 .get_count = cpu_qemu_get_count, 34 }; 35 36 static const struct udevice_id cpu_qemu_ids[] = { 37 { .compatible = "cpu-qemu" }, 38 { } 39 }; 40 41 U_BOOT_DRIVER(cpu_qemu_drv) = { 42 .name = "cpu_qemu", 43 .id = UCLASS_CPU, 44 .of_match = cpu_qemu_ids, 45 .ops = &cpu_qemu_ops, 46 }; 47