Linux_SDK_V0.9.5Linux_SDK_V0.9.5

1 files changed, 71 insertions, 0 deletions

diff --git a/cmd/scsi.c b/cmd/scsi.c
new file mode 100644
index 00000000..67de1a3b
--- /dev/null
+++ b/cmd/scsi.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ */
+
+/*
+ * SCSI support.
+ */
+#include <common.h>
+#include <command.h>
+#include <scsi.h>
+
+static int scsi_curr_dev; /* current device */
+
+/*
+ * scsi boot command intepreter. Derived from diskboot
+ */
+static int do_scsiboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+	return common_diskboot(cmdtp, "scsi", argc, argv);
+}
+
+/*
+ * scsi command intepreter
+ */
+static int do_scsi(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+	int ret;
+
+	if (argc == 2) {
+		if (strncmp(argv[1], "res", 3) == 0) {
+			printf("\nReset SCSI\n");
+#ifndef CONFIG_DM_SCSI
+			scsi_bus_reset(NULL);
+#endif
+			ret = scsi_scan(true);
+			if (ret)
+				return CMD_RET_FAILURE;
+			return ret;
+		}
+		if (strncmp(argv[1], "scan", 4) == 0) {
+			ret = scsi_scan(true);
+			if (ret)
+				return CMD_RET_FAILURE;
+			return ret;
+		}
+	}
+
+	return blk_common_cmd(argc, argv, IF_TYPE_SCSI, &scsi_curr_dev);
+}
+
+U_BOOT_CMD(
+	scsi, 5, 1, do_scsi,
+	"SCSI sub-system",
+	"reset - reset SCSI controller\n"
+	"scsi info  - show available SCSI devices\n"
+	"scsi scan  - (re-)scan SCSI bus\n"
+	"scsi device [dev] - show or set current device\n"
+	"scsi part [dev] - print partition table of one or all SCSI devices\n"
+	"scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
+	"     to memory address `addr'\n"
+	"scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
+	"     `blk#' from memory address `addr'"
+);
+
+U_BOOT_CMD(
+	scsiboot, 3, 1, do_scsiboot,
+	"boot from SCSI device",
+	"loadAddr dev:part"
+);