The TLV command does the equivalent of having a "barebox,tlv"
compatible node point at the file. It's meant as a debugging aid.

Signed-off-by: Ahmad Fatoum <a.fat...@pengutronix.de>
---
 commands/Kconfig  | 12 +++++++++++
 commands/Makefile |  1 +
 commands/tlv.c    | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 68 insertions(+)
 create mode 100644 commands/tlv.c

diff --git a/commands/Kconfig b/commands/Kconfig
index ca3f13d7e0cc..229d0a634a8c 100644
--- a/commands/Kconfig
+++ b/commands/Kconfig
@@ -2573,6 +2573,18 @@ config CMD_STATE
        depends on STATE
        prompt "state"
 
+config CMD_TLV
+       tristate
+       depends on TLV
+       prompt "tlv"
+       help
+         tlv - handle barebox TLV
+
+         Usage: tlv [-f] FILE
+
+         The TLV command does the equivalent of having a "barebox,tlv"
+         compatible node point at the file. It's meant as a debugging aid.
+
 config CMD_DHRYSTONE
        bool
        prompt "dhrystone"
diff --git a/commands/Makefile b/commands/Makefile
index 8c2749b5ebdd..53337dfb5c2d 100644
--- a/commands/Makefile
+++ b/commands/Makefile
@@ -143,6 +143,7 @@ obj-$(CONFIG_CMD_CMP)               += cmp.o
 obj-$(CONFIG_CMD_NV)           += nv.o
 obj-$(CONFIG_CMD_DEFAULTENV)   += defaultenv.o
 obj-$(CONFIG_CMD_STATE)                += state.o
+obj-$(CONFIG_CMD_TLV)          += tlv.o
 obj-$(CONFIG_CMD_DHCP)         += dhcp.o
 obj-$(CONFIG_CMD_BOOTCHOOSER)  += bootchooser.o
 obj-$(CONFIG_CMD_DHRYSTONE)    += dhrystone.o
diff --git a/commands/tlv.c b/commands/tlv.c
new file mode 100644
index 000000000000..53fbc2a29186
--- /dev/null
+++ b/commands/tlv.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-FileCopyrightText: © 2022 Ahmad Fatoum, Pengutronix
+
+#include <common.h>
+#include <of.h>
+#include <command.h>
+#include <getopt.h>
+#include <tlv/tlv.h>
+
+static int do_tlv(int argc, char *argv[])
+{
+       const char *filename;
+       bool fixup = false;
+       struct tlv_device *tlvdev;
+       int opt;
+
+       while ((opt = getopt(argc, argv, "f")) > 0) {
+               switch (opt) {
+               case 'f':
+                       fixup = true;
+                       break;
+               default:
+                       return COMMAND_ERROR_USAGE;
+               }
+       }
+
+       filename = argv[optind];
+       if (!filename)
+               return COMMAND_ERROR_USAGE;
+
+       tlvdev = tlv_register_device_by_path(argv[optind], NULL);
+       if (IS_ERR(tlvdev))
+               return PTR_ERR(tlvdev);
+
+       if (fixup)
+               return tlv_of_register_fixup(tlvdev);
+
+       of_print_nodes(tlv_of_node(tlvdev), 0, ~0);
+
+       tlv_free_device(tlvdev);
+       return 0;
+}
+
+BAREBOX_CMD_HELP_START(tlv)
+BAREBOX_CMD_HELP_TEXT("Options:")
+BAREBOX_CMD_HELP_OPT ("-f",  "Register device tree fixup for TLV")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(tlv)
+       .cmd            = do_tlv,
+       BAREBOX_CMD_DESC("handle barebox TLV")
+       BAREBOX_CMD_OPTS("[-f] FILE")
+       BAREBOX_CMD_GROUP(CMD_GRP_MISC)
+       BAREBOX_CMD_HELP(cmd_tlv_help)
+BAREBOX_CMD_END
-- 
2.39.5


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