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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>
87 lines
1.8 KiB
C
87 lines
1.8 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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*/
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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 <malloc.h>
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#include <qfw.h>
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#include <dm/lists.h>
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#include <dm/uclass-internal.h>
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#include <dm/root.h>
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int qemu_cpu_fixup(void)
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{
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int ret;
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int cpu_num;
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int cpu_online;
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struct uclass *uc;
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struct udevice *dev, *pdev, *qfwdev;
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struct cpu_plat *plat;
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char *cpu;
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/* This will cause the CPUs devices to be bound */
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ret = uclass_get(UCLASS_CPU, &uc);
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if (ret)
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return ret;
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/* first we need to find '/cpus' */
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for (device_find_first_child(dm_root(), &pdev);
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pdev;
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device_find_next_child(&pdev)) {
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if (!strcmp(pdev->name, "cpus"))
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break;
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}
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if (!pdev) {
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printf("unable to find cpus device\n");
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return -ENODEV;
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}
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/* get qfw dev */
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ret = qfw_get_dev(&qfwdev);
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if (ret) {
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printf("unable to find qfw device\n");
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return ret;
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}
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/* calculate cpus that are already bound */
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cpu_num = 0;
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for (uclass_find_first_device(UCLASS_CPU, &dev);
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dev;
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uclass_find_next_device(&dev)) {
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cpu_num++;
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}
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/* get actual cpu number */
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cpu_online = qfw_online_cpus(qfwdev);
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if (cpu_online < 0) {
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printf("unable to get online cpu number: %d\n", cpu_online);
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return cpu_online;
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}
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/* bind addtional cpus */
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dev = NULL;
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for (; cpu_num < cpu_online; cpu_num++) {
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/*
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* allocate device name here as device_bind_driver() does
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* not copy device name, 8 bytes are enough for
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* sizeof("cpu@") + 3 digits cpu number + '\0'
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*/
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cpu = malloc(8);
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if (!cpu) {
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printf("unable to allocate device name\n");
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return -ENOMEM;
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}
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sprintf(cpu, "cpu@%d", cpu_num);
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ret = device_bind_driver(pdev, "cpu_qemu", cpu, &dev);
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if (ret) {
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printf("binding cpu@%d failed: %d\n", cpu_num, ret);
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return ret;
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}
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plat = dev_get_parent_plat(dev);
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plat->cpu_id = cpu_num;
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}
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return 0;
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}
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