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authorMichael Tretter <m.tretter@pengutronix.de>2021-06-24 17:00:51 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2021-06-25 09:39:19 +0200
commit68f866d4e4867ef97f25049cea6900630386da14 (patch)
tree296216592f9720dcaf979bf62fd2efb1f6d0bed4 /arch/arm/mach-zynqmp
parent304210b79ba4a85b0c4ee2a1b594e4bc5cf073e7 (diff)
downloadbarebox-68f866d4e4867ef97f25049cea6900630386da14.tar.gz
barebox-68f866d4e4867ef97f25049cea6900630386da14.tar.xz
ARM: zynqmp: add update handler
The ZynqMP boots from an SDHCI device by reading a boot.bin file from the FAT16/32 partition, which is the first partition in the MBR. The update handler copies a boot.bin image to this partition, which might be board specific. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Link: https://lore.barebox.org/20210624150054.1205422-5-m.tretter@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-zynqmp')
-rw-r--r--arch/arm/mach-zynqmp/Makefile1
-rw-r--r--arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h21
-rw-r--r--arch/arm/mach-zynqmp/zynqmp-bbu.c48
3 files changed, 70 insertions, 0 deletions
diff --git a/arch/arm/mach-zynqmp/Makefile b/arch/arm/mach-zynqmp/Makefile
index 14b8a4e46b..e24a43c0d5 100644
--- a/arch/arm/mach-zynqmp/Makefile
+++ b/arch/arm/mach-zynqmp/Makefile
@@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-or-later
obj-y += firmware-zynqmp.o
obj-y += zynqmp.o
+obj-$(CONFIG_BAREBOX_UPDATE) += zynqmp-bbu.o
diff --git a/arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h b/arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h
new file mode 100644
index 0000000000..8502791ee0
--- /dev/null
+++ b/arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Michael Tretter <m.tretter@pengutronix.de>
+ */
+#ifndef __MACH_ZYNQMP_BBU_H
+#define __MACH_ZYNQMP_BBU_H
+
+#include <bbu.h>
+
+#ifdef CONFIG_BAREBOX_UPDATE
+int zynqmp_bbu_register_handler(const char *name, char *devicefile,
+ unsigned long flags);
+#else
+static int zynqmp_bbu_register_handler(const char *name, char *devicefile,
+ unsigned long flags)
+{
+ return 0;
+};
+#endif
+
+#endif /* __MACH_ZYNQMP_BBU_H */
diff --git a/arch/arm/mach-zynqmp/zynqmp-bbu.c b/arch/arm/mach-zynqmp/zynqmp-bbu.c
new file mode 100644
index 0000000000..d1197c01dc
--- /dev/null
+++ b/arch/arm/mach-zynqmp/zynqmp-bbu.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020 Michael Tretter <m.tretter@pengutronix.de>
+ */
+
+#include <common.h>
+#include <libfile.h>
+#include <mach/zynqmp-bbu.h>
+
+static int zynqmp_bbu_handler(struct bbu_handler *handler,
+ struct bbu_data *data)
+{
+ int ret = 0;
+
+ ret = bbu_confirm(data);
+ if (ret)
+ return ret;
+
+ ret = copy_file(data->imagefile, data->devicefile, 1);
+ if (ret < 0) {
+ pr_err("update failed: %s", strerror(-ret));
+ return ret;
+ }
+
+ return ret;
+}
+
+int zynqmp_bbu_register_handler(const char *name, char *devicefile,
+ unsigned long flags)
+{
+ struct bbu_handler *handler;
+ int ret = 0;
+
+ if (!name || !devicefile)
+ return -EINVAL;
+
+ handler = xzalloc(sizeof(*handler));
+ handler->name = name;
+ handler->devicefile = devicefile;
+ handler->flags = flags;
+ handler->handler = zynqmp_bbu_handler;
+
+ ret = bbu_register_handler(handler);
+ if (ret)
+ free(handler);
+
+ return ret;
+}