mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
75 lines
1.6 KiB
C
75 lines
1.6 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 udevice *dev, *pdev;
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struct cpu_platdata *plat;
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char *cpu;
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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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/* 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 = qemu_fwcfg_online_cpus();
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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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