[PATCH 5/7] ARM: zynqmp: zcu104: register update handler

[Michael Tretter <m.tretter@pengutronix.de>]

As the zcu104 stores the environment in the same partition as the
barebox image, the partition is already mounted in ENV_MNT_DIR
("/boot"). Therefore, the update handler has to use the already
existing mount point for the update.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
---
 arch/arm/boards/xilinx-zcu104/Makefile |  1 +
 arch/arm/boards/xilinx-zcu104/board.c  | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 arch/arm/boards/xilinx-zcu104/board.c

diff --git a/arch/arm/boards/xilinx-zcu104/Makefile b/arch/arm/boards/xilinx-zcu104/Makefile
index 884d6e63b019..297f77d57ab1 100644
--- a/arch/arm/boards/xilinx-zcu104/Makefile
+++ b/arch/arm/boards/xilinx-zcu104/Makefile
@@ -1,2 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
+obj-y += board.o
 lwl-y += lowlevel.o lowlevel_init.o
diff --git a/arch/arm/boards/xilinx-zcu104/board.c b/arch/arm/boards/xilinx-zcu104/board.c
new file mode 100644
index 000000000000..7654d2bfac90
--- /dev/null
+++ b/arch/arm/boards/xilinx-zcu104/board.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020 Michael Tretter <m.tretter@pengutronix.de>
+ */
+
+#include <common.h>
+#include <init.h>
+#include <mach/zynqmp-bbu.h>
+
+static int zcu104_register_update_handler(void)
+{
+	if (!of_machine_is_compatible("xlnx,zynqmp-zcu104"))
+		return 0;
+
+	return zynqmp_bbu_register_handler("SD", "/boot/BOOT.BIN",
+					   BBU_HANDLER_FLAG_DEFAULT);
+}
+device_initcall(zcu104_register_update_handler);
-- 
2.29.2


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