bootsource: create arch independent bootsource framework

This patch seperates the imx independent from the arch independent code. The
following functions and enums are renamed:

- imx_bootsource() -> bootsource_get()
- imx_set_bootsource() -> bootsource_set()
- enum imx_bootsource -> enum bootsource

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 53 insertions, 0 deletions

diff --git a/common/bootsource.c b/common/bootsource.c
new file mode 100644
index 0000000000..6f9ae54ceb
--- /dev/null
+++ b/common/bootsource.c
@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright (C) 2011 Marc Reilly <marc@cpdesign.com.au>
+ * Copyright (C) 2013 Marc Kleine-Budde <mkl@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ */
+
+#include <common.h>
+#include <bootsource.h>
+#include <environment.h>
+#include <magicvar.h>
+
+static const char *bootsource_str[] = {
+	[BOOTSOURCE_UNKNOWN] = "unknown",
+	[BOOTSOURCE_NAND] = "nand",
+	[BOOTSOURCE_NOR] = "nor",
+	[BOOTSOURCE_MMC] = "mmc",
+	[BOOTSOURCE_I2C] = "i2c",
+	[BOOTSOURCE_SPI] = "spi",
+	[BOOTSOURCE_SERIAL] = "serial",
+	[BOOTSOURCE_ONENAND] = "onenand",
+	[BOOTSOURCE_HD] = "harddisk",
+};
+
+static enum bootsource bootsource = BOOTSOURCE_UNKNOWN;
+
+void bootsource_set(enum bootsource src)
+{
+	if (src >= ARRAY_SIZE(bootsource_str))
+		src = BOOTSOURCE_UNKNOWN;
+
+	bootsource = src;
+
+	setenv("bootsource", bootsource_str[src]);
+	export("bootsource");
+}
+
+enum bootsource bootsource_get(void)
+{
+	return bootsource;
+}
+
+BAREBOX_MAGICVAR(bootsource, "The source barebox has been booted from");