[ubicom32]: move new files out from platform support patch

[openwrt.git] / target / linux / ubicom32 / files / arch / ubicom32 / mach-common / bootargs.c

diff --git a/target/linux/ubicom32/files/arch/ubicom32/mach-common/bootargs.c b/target/linux/ubicom32/files/arch/ubicom32/mach-common/bootargs.c
new file mode 100644 (file)
index 0000000..2967150
--- /dev/null
+++ b/target/linux/ubicom32/files/arch/ubicom32/mach-common/bootargs.c
@@ -0,0 +1,63 @@
+/*
+ * arch/ubicom32/mach-common/bootargs.c
+ *   Board init and support code.
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ *   arch/m68knommu
+ *   arch/blackfin
+ *   arch/parisc
+ */
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/cpu.h>
+#include <asm/devtree.h>
+
+struct bootargsnode {
+       struct devtree_node dn;
+       const char cmdline[512];
+};
+
+static const struct bootargsnode *ban;
+
+/*
+ * bootargs_get_cmdline()
+ *     Returns kernel boot arguments set by the bootloader.
+ */
+const char *bootargs_get_cmdline(void)
+{
+       if (!ban) {
+               return "";
+       }
+
+       return ban->cmdline;
+}
+
+/*
+ * bootargs_init
+ */
+void __init bootargs_init(void)
+{
+       ban = (struct bootargsnode *)devtree_find_node("bootargs");
+       if (!ban) {
+               printk(KERN_WARNING "bootargs node not found\n");
+               return;
+       }
+}