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 <qfw.h> 12 #include <asm/cpu.h> 13 14 int cpu_qemu_get_desc(struct udevice *dev, char *buf, int size) 15 { 16 if (size < CPU_MAX_NAME_LEN) 17 return -ENOSPC; 18 19 cpu_get_name(buf); 20 21 return 0; 22 } 23 24 static int cpu_qemu_get_count(struct udevice *dev) 25 { 26 return qemu_fwcfg_online_cpus(); 27 } 28 29 static const struct cpu_ops cpu_qemu_ops = { 30 .get_desc = cpu_qemu_get_desc, 31 .get_count = cpu_qemu_get_count, 32 }; 33 34 static const struct udevice_id cpu_qemu_ids[] = { 35 { .compatible = "cpu-qemu" }, 36 { } 37 }; 38 39 U_BOOT_DRIVER(cpu_qemu_drv) = { 40 .name = "cpu_qemu", 41 .id = UCLASS_CPU, 42 .of_match = cpu_qemu_ids, 43 .ops = &cpu_qemu_ops, 44 }; 45