GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/drivers/nvme/nvme-uclass.c

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 NXP Semiconductors
+ * Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <dm.h>
+#include <dm/device.h>
+#include "nvme.h"
+
+static int nvme_uclass_post_probe(struct udevice *udev)
+{
+	char name[20];
+	struct udevice *ns_udev;
+	int i, ret;
+	struct nvme_dev *ndev = dev_get_priv(udev);
+
+	/* Create a blk device for each namespace */
+	for (i = 0; i < ndev->nn; i++) {
+		/*
+		 * Encode the namespace id to the device name so that
+		 * we can extract it when doing the probe.
+		 */
+		sprintf(name, "blk#%d", i);
+
+		/* The real blksz and size will be set by nvme_blk_probe() */
+		ret = blk_create_devicef(udev, "nvme-blk", name, IF_TYPE_NVME,
+					 -1, 512, 0, &ns_udev);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+UCLASS_DRIVER(nvme) = {
+	.name	= "nvme",
+	.id	= UCLASS_NVME,
+	.post_probe = nvme_uclass_post_probe,
+};