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From: Michael Tretter <m.tretter@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH v2 4/7] ARM: zynqmp: add update handler
Date: Thu, 24 Jun 2021 17:00:51 +0200	[thread overview]
Message-ID: <20210624150054.1205422-5-m.tretter@pengutronix.de> (raw)
In-Reply-To: <20210624150054.1205422-1-m.tretter@pengutronix.de>

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>
---
Changelog:

v2: none
---
 arch/arm/mach-zynqmp/Makefile                 |  1 +
 .../arm/mach-zynqmp/include/mach/zynqmp-bbu.h | 21 ++++++++
 arch/arm/mach-zynqmp/zynqmp-bbu.c             | 48 +++++++++++++++++++
 3 files changed, 70 insertions(+)
 create mode 100644 arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h
 create mode 100644 arch/arm/mach-zynqmp/zynqmp-bbu.c

diff --git a/arch/arm/mach-zynqmp/Makefile b/arch/arm/mach-zynqmp/Makefile
index 14b8a4e46b87..e24a43c0d59f 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 000000000000..8502791ee0f7
--- /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 000000000000..d1197c01dc41
--- /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;
+}
-- 
2.30.2


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  parent reply	other threads:[~2021-06-24 15:02 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-24 15:00 [PATCH v2 0/7] ZynqMP: Cleanup and extend board support Michael Tretter
2021-06-24 15:00 ` [PATCH v2 1/7] ARM: zynqmp: set reset source Michael Tretter
2021-06-24 15:00 ` [PATCH v2 2/7] clk: zynqmp: do not enable already enabled clocks Michael Tretter
2021-06-24 15:00 ` [PATCH v2 3/7] dts: zcu104: add Barebox environment Michael Tretter
2021-06-24 15:00 ` Michael Tretter [this message]
2021-06-24 15:00 ` [PATCH v2 5/7] ARM: zynqmp: zcu104: register update handler Michael Tretter
2021-06-24 15:00 ` [PATCH v2 6/7] ARM: zynqmp: defconfig: enable more features Michael Tretter
2021-06-24 15:00 ` [PATCH v2 7/7] Documentation: zynqmp: add some documentation Michael Tretter
2021-06-25  7:39 ` [PATCH v2 0/7] ZynqMP: Cleanup and extend board support Sascha Hauer

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