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

source/bootloader/u-boot-2020.01/cmd/nvme.c

@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 NXP Semiconductors
+ * Copyright (C) 2017 Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <nvme.h>
+
+static int nvme_curr_dev;
+
+static int do_nvme(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int ret;
+
+	if (argc == 2) {
+		if (strncmp(argv[1], "scan", 4) == 0) {
+			ret = nvme_scan_namespace();
+			if (ret)
+				return CMD_RET_FAILURE;
+
+			return ret;
+		}
+		if (strncmp(argv[1], "deta", 4) == 0) {
+			struct udevice *udev;
+
+			ret = blk_get_device(IF_TYPE_NVME, nvme_curr_dev,
+					     &udev);
+			if (ret < 0)
+				return CMD_RET_FAILURE;
+
+			nvme_print_info(udev);
+
+			return ret;
+		}
+	}
+
+	return blk_common_cmd(argc, argv, IF_TYPE_NVME, &nvme_curr_dev);
+}
+
+U_BOOT_CMD(
+	nvme, 8, 1, do_nvme,
+	"NVM Express sub-system",
+	"scan - scan NVMe devices\n"
+	"nvme detail - show details of current NVMe device\n"
+	"nvme info - show all available NVMe devices\n"
+	"nvme device [dev] - show or set current NVMe device\n"
+	"nvme part [dev] - print partition table of one or all NVMe devices\n"
+	"nvme read addr blk# cnt - read `cnt' blocks starting at block\n"
+	"     `blk#' to memory address `addr'\n"
+	"nvme write addr blk# cnt - write `cnt' blocks starting at block\n"
+	"     `blk#' from memory address `addr'"
+);