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104 lines
1.8 KiB
104 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) 2015 Google, Inc |
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* Written by Simon Glass <[email protected]> |
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*/ |
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#include <common.h> |
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#include <cpu.h> |
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#include <dm.h> |
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#include <errno.h> |
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#include <dm/lists.h> |
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#include <dm/root.h> |
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int cpu_probe_all(void) |
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{ |
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struct udevice *cpu; |
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int ret; |
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ret = uclass_first_device(UCLASS_CPU, &cpu); |
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if (ret) { |
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debug("%s: No CPU found (err = %d)\n", __func__, ret); |
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return ret; |
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} |
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while (cpu) { |
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ret = uclass_next_device(&cpu); |
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if (ret) { |
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debug("%s: Error while probing CPU (err = %d)\n", |
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__func__, ret); |
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return ret; |
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} |
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} |
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return 0; |
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} |
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int cpu_get_desc(struct udevice *dev, char *buf, int size) |
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{ |
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struct cpu_ops *ops = cpu_get_ops(dev); |
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if (!ops->get_desc) |
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return -ENOSYS; |
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return ops->get_desc(dev, buf, size); |
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} |
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int cpu_get_info(struct udevice *dev, struct cpu_info *info) |
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{ |
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struct cpu_ops *ops = cpu_get_ops(dev); |
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if (!ops->get_info) |
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return -ENOSYS; |
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return ops->get_info(dev, info); |
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} |
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int cpu_get_count(struct udevice *dev) |
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{ |
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struct cpu_ops *ops = cpu_get_ops(dev); |
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if (!ops->get_count) |
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return -ENOSYS; |
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return ops->get_count(dev); |
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} |
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int cpu_get_vendor(struct udevice *dev, char *buf, int size) |
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{ |
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struct cpu_ops *ops = cpu_get_ops(dev); |
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if (!ops->get_vendor) |
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return -ENOSYS; |
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return ops->get_vendor(dev, buf, size); |
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} |
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U_BOOT_DRIVER(cpu_bus) = { |
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.name = "cpu_bus", |
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.id = UCLASS_SIMPLE_BUS, |
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.per_child_platdata_auto_alloc_size = sizeof(struct cpu_platdata), |
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}; |
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static int uclass_cpu_init(struct uclass *uc) |
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{ |
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struct udevice *dev; |
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ofnode node; |
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int ret; |
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node = ofnode_path("/cpus"); |
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if (!ofnode_valid(node)) |
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return 0; |
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ret = device_bind_driver_to_node(dm_root(), "cpu_bus", "cpus", node, |
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&dev); |
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return ret; |
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} |
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UCLASS_DRIVER(cpu) = { |
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.id = UCLASS_CPU, |
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.name = "cpu", |
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.flags = DM_UC_FLAG_SEQ_ALIAS, |
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.init = uclass_cpu_init, |
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};
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