u-boot/drivers/nvme/nvme_pci.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 NXP Semiconductors
* Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <dm.h>
#include <init.h>
#include <pci.h>
#include "nvme.h"
static int nvme_bind(struct udevice *udev)
{
static int ndev_num;
char name[20];
sprintf(name, "nvme#%d", ndev_num++);
return device_set_name(udev, name);
}
static int nvme_probe(struct udevice *udev)
{
struct nvme_dev *ndev = dev_get_priv(udev);
struct pci_child_plat *pplat;
pplat = dev_get_parent_plat(udev);
sprintf(ndev->vendor, "0x%.4x", pplat->vendor);
ndev->instance = trailing_strtol(udev->name);
ndev->bar = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0, 0, 0,
PCI_REGION_TYPE, PCI_REGION_MEM);
/* Turn on bus-mastering */
dm_pci_clrset_config16(udev, PCI_COMMAND, 0, PCI_COMMAND_MASTER);
return nvme_init(udev);
}
U_BOOT_DRIVER(nvme) = {
.name = "nvme",
.id = UCLASS_NVME,
.bind = nvme_bind,
.probe = nvme_probe,
.priv_auto = sizeof(struct nvme_dev),
};
struct pci_device_id nvme_supported[] = {
{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, ~0) },
{}
};
U_BOOT_PCI_DEVICE(nvme, nvme_supported);