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Diffstat (limited to 'arch/powerpc/lib/ticks.S')
| -rw-r--r-- | arch/powerpc/lib/ticks.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/powerpc/lib/ticks.S b/arch/powerpc/lib/ticks.S new file mode 100644 index 0000000000..e923f17b63 --- /dev/null +++ b/arch/powerpc/lib/ticks.S @@ -0,0 +1,35 @@ +/* + * (C) Copyright 2000, 2001 + * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. + * base on code by + * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <asm/ppc_asm.tmpl> +#include <asm/ppc_defs.h> +#include <config.h> + +/* + * unsigned long long get_ticks(void); + * + * read timebase as "long long" + */ + .globl get_ticks +get_ticks: +1: mftbu r3 + mftb r4 + mftbu r5 + cmp 0,r3,r5 + bne 1b + blr |