introduce barebox_set_model

Instead of calling of_get_model() in barebox_get_model() add a
barebox_set_model() and use it to set the boardinfo once it's
available from the devicetree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common/misc.c

@@ -18,6 +18,7 @@
 
 #include <common.h>
 #include <errno.h>
+#include <malloc.h>
 
 int errno;
 EXPORT_SYMBOL(errno);
@@ -126,19 +127,25 @@ EXPORT_SYMBOL(perror);
 void (*do_execute)(void *func, int argc, char *argv[]);
 EXPORT_SYMBOL(do_execute);
 
-static const char *model;
+static char *model;
+
+/*
+ * The model is the verbose name of a board. It can contain
+ * whitespaces, uppercase/lowcer letters, digits, ',', '.'
+ * '-', '_'
+ */
+void barebox_set_model(const char *__model)
+{
+	free(model);
+	model = xstrdup(__model);
+}
+EXPORT_SYMBOL(barebox_set_model);
 
 const char *barebox_get_model(void)
 {
 	if (model)
 		return model;
 
-	model = of_get_model();
+	return CONFIG_BOARDINFO;
-	if (model)
-		model = xstrdup(model);
-	else
-		model = CONFIG_BOARDINFO;
-
-	return model;
 }
 EXPORT_SYMBOL(barebox_get_model);

drivers/of/base.c

@@ -1610,6 +1610,9 @@ int of_probe(void)
 	of_chosen = of_find_node_by_path("/chosen");
 	of_property_read_string(root_node, "model", &of_model);
 
+	if (of_model)
+		barebox_set_model(of_model);
+
 	__of_parse_phandles(root_node);
 
 	memory = of_find_node_by_path("/memory");

include/common.h

@@ -235,6 +235,7 @@ static inline void barebox_banner(void) {}
 #endif
 
 const char *barebox_get_model(void);
+void barebox_set_model(const char *);
 
 #define IOMEM(addr)	((void __force __iomem *)(addr))