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From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH 08/11] ARM: tegra: add eMMC barebox update handler
Date: Tue,  3 Mar 2015 20:46:20 +0100	[thread overview]
Message-ID: <1425411983-24732-8-git-send-email-dev@lynxeye.de> (raw)
In-Reply-To: <1425411983-24732-1-git-send-email-dev@lynxeye.de>

Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
 arch/arm/mach-tegra/Makefile                 |  1 +
 arch/arm/mach-tegra/include/mach/tegra-bbu.h | 28 +++++++++++
 arch/arm/mach-tegra/tegra-bbu.c              | 74 ++++++++++++++++++++++++++++
 3 files changed, 103 insertions(+)
 create mode 100644 arch/arm/mach-tegra/include/mach/tegra-bbu.h
 create mode 100644 arch/arm/mach-tegra/tegra-bbu.c

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index e68156a..7c4c1fd 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -13,3 +13,4 @@ lwl-y += tegra_maincomplex_init.o
 obj-y += tegra20.o
 obj-y += tegra20-pmc.o
 obj-y += tegra20-timer.o
+obj-$(CONFIG_BAREBOX_UPDATE) += tegra-bbu.o
diff --git a/arch/arm/mach-tegra/include/mach/tegra-bbu.h b/arch/arm/mach-tegra/include/mach/tegra-bbu.h
new file mode 100644
index 0000000..32e2861
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/tegra-bbu.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2015 Lucas Stach <l.stach@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <bbu.h>
+
+#ifdef CONFIG_BAREBOX_UPDATE
+int tegra_bbu_register_emmc_handler(const char *name, char *devicefile,
+				    unsigned long flags);
+#else
+static int tegra_bbu_register_emmc_handler(const char *name, char *devicefile,
+				    unsigned long flags)
+{
+	return 0;
+};
+#endif
diff --git a/arch/arm/mach-tegra/tegra-bbu.c b/arch/arm/mach-tegra/tegra-bbu.c
new file mode 100644
index 0000000..089e6c7
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra-bbu.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2015 Lucas Stach <l.stach@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <fcntl.h>
+#include <fs.h>
+#include <mach/tegra-bbu.h>
+#include <malloc.h>
+
+static int tegra_bbu_emmc_handler(struct bbu_handler *handler,
+				  struct bbu_data *data)
+{
+
+	int fd, ret;
+
+	if (file_detect_type(data->image + 0x4000, data->len) !=
+	    filetype_arm_barebox &&
+	    !bbu_force(data, "Not an ARM barebox image"))
+		return -EINVAL;
+
+	ret = bbu_confirm(data);
+	if (ret)
+		return ret;
+
+	fd = open(data->devicefile, O_WRONLY);
+	if (fd < 0)
+		return fd;
+
+	ret = write(fd, data->image, data->len);
+	if (ret < 0) {
+		pr_err("writing update to %s failed with %s\n",
+			data->devicefile, strerror(-ret));
+		goto err_close;
+	}
+
+	ret = 0;
+
+err_close:
+	close(fd);
+
+	return ret;
+}
+
+int tegra_bbu_register_emmc_handler(const char *name, char *devicefile,
+				    unsigned long flags)
+{
+	struct bbu_handler *handler;
+	int ret = 0;
+
+	handler = xzalloc(sizeof(*handler));
+	handler->name = name;
+	handler->devicefile = devicefile;
+	handler->flags = flags;
+	handler->handler = tegra_bbu_emmc_handler;
+
+	ret = bbu_register_handler(handler);
+	if (ret)
+		free(handler);
+
+	return ret;
+}
-- 
2.1.0


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  parent reply	other threads:[~2015-03-03 19:48 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-03 19:46 [PATCH 01/11] of: make of_alias_get work on all types of DT paths Lucas Stach
2015-03-03 19:46 ` [PATCH 02/11] ARM: tegra20: add mmc aliases Lucas Stach
2015-03-03 19:46 ` [PATCH 03/11] ARM: tegra30: " Lucas Stach
2015-03-03 19:46 ` [PATCH 04/11] ARM: tegra124: " Lucas Stach
2015-03-03 19:46 ` [PATCH 05/11] mci: tegra: handle " Lucas Stach
2015-03-03 19:46 ` [PATCH 06/11] bbu: include necessary headers Lucas Stach
2015-03-03 19:46 ` [PATCH 07/11] bbu: make bbu confirm a bit more verbose Lucas Stach
2015-03-03 19:46 ` Lucas Stach [this message]
2015-03-03 19:46 ` [PATCH 09/11] ARM: tegra: add barebox update handler to Beaver board Lucas Stach
2015-03-03 19:46 ` [PATCH 10/11] ARM: tegra: add barebox update handler to Jetson board Lucas Stach
2015-03-03 19:46 ` [PATCH 11/11] ARM: tegra: enable barebox update in defconfig Lucas Stach
2015-03-04 10:34 ` [PATCH 01/11] of: make of_alias_get work on all types of DT paths Sascha Hauer

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