diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/mach-common/bootargs.c')
-rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/mach-common/bootargs.c | 63 |
1 files changed, 63 insertions, 0 deletions
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 index 000000000..296715098 --- /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; + } +} |