1 /* 2 * Copyright (C) 2015 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <cpu.h> 10 #include <dm.h> 11 #include <dm/lists.h> 12 #include <dm/root.h> 13 14 int cpu_get_desc(struct udevice *dev, char *buf, int size) 15 { 16 struct cpu_ops *ops = cpu_get_ops(dev); 17 18 if (!ops->get_desc) 19 return -ENOSYS; 20 21 return ops->get_desc(dev, buf, size); 22 } 23 24 int cpu_get_info(struct udevice *dev, struct cpu_info *info) 25 { 26 struct cpu_ops *ops = cpu_get_ops(dev); 27 28 if (!ops->get_desc) 29 return -ENOSYS; 30 31 return ops->get_info(dev, info); 32 } 33 34 U_BOOT_DRIVER(cpu_bus) = { 35 .name = "cpu_bus", 36 .id = UCLASS_SIMPLE_BUS, 37 .per_child_platdata_auto_alloc_size = sizeof(struct cpu_platdata), 38 }; 39 40 static int uclass_cpu_init(struct uclass *uc) 41 { 42 struct udevice *dev; 43 int node; 44 int ret; 45 46 node = fdt_path_offset(gd->fdt_blob, "/cpus"); 47 if (node < 0) 48 return 0; 49 50 ret = device_bind_driver_to_node(dm_root(), "cpu_bus", "cpus", node, 51 &dev); 52 53 return ret; 54 } 55 56 UCLASS_DRIVER(cpu) = { 57 .id = UCLASS_CPU, 58 .name = "cpu", 59 .flags = DM_UC_FLAG_SEQ_ALIAS, 60 .init = uclass_cpu_init, 61 }; 62