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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
136 lines
2.4 KiB
C
136 lines
2.4 KiB
C
// 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 <sjg@chromium.org>
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*/
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#define LOG_CATEGORY UCLASS_CPU
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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 <log.h>
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#include <dm/lists.h>
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#include <dm/root.h>
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#include <linux/err.h>
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#include <relocate.h>
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DECLARE_GLOBAL_DATA_PTR;
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int cpu_probe_all(void)
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{
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int ret = uclass_probe_all(UCLASS_CPU);
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if (ret) {
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debug("%s: Error while probing CPUs (err = %d %s)\n",
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__func__, ret, errno_str(ret));
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}
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return ret;
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}
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int cpu_is_current(struct udevice *cpu)
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{
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struct cpu_ops *ops = cpu_get_ops(cpu);
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if (ops->is_current) {
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if (ops->is_current(cpu))
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return 1;
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}
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return -ENOSYS;
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}
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struct udevice *cpu_get_current_dev(void)
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{
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struct udevice *cpu;
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int ret;
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uclass_foreach_dev_probe(UCLASS_CPU, cpu) {
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if (cpu_is_current(cpu) > 0)
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return cpu;
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}
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/* If can't find current cpu device, use the first dev instead */
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ret = uclass_first_device_err(UCLASS_CPU, &cpu);
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if (ret) {
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debug("%s: Could not get CPU device (err = %d)\n",
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__func__, ret);
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return NULL;
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}
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return cpu;
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}
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int cpu_get_desc(const 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(const 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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/* Init cpu_info to 0 */
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memset(info, 0, sizeof(struct cpu_info));
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return ops->get_info(dev, info);
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}
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int cpu_get_count(const 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(const 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_plat_auto = sizeof(struct cpu_plat),
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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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