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author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:04 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:03 +0200 |
commit | ea0364f1bbfed1e3ea711147420875cf338fe77a (patch) | |
tree | 15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /lib_ppc/time.c | |
parent | 89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff) | |
download | u-boot-imx-ea0364f1bbfed1e3ea711147420875cf338fe77a.zip u-boot-imx-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.gz u-boot-imx-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.bz2 |
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'lib_ppc/time.c')
-rw-r--r-- | lib_ppc/time.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/lib_ppc/time.c b/lib_ppc/time.c deleted file mode 100644 index 2909961..0000000 --- a/lib_ppc/time.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * (C) Copyright 2000, 2001 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> - -/* ------------------------------------------------------------------------- */ - -/* - * This function is intended for SHORT delays only. - * It will overflow at around 10 seconds @ 400MHz, - * or 20 seconds @ 200MHz. - */ -unsigned long usec2ticks(unsigned long usec) -{ - ulong ticks; - - if (usec < 1000) { - ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000; - } else { - ticks = ((usec / 10) * (get_tbclk() / 100000)); - } - - return (ticks); -} - -/* ------------------------------------------------------------------------- */ - -/* - * We implement the delay by converting the delay (the number of - * microseconds to wait) into a number of time base ticks; then we - * watch the time base until it has incremented by that amount. - */ -void __udelay(unsigned long usec) -{ - ulong ticks = usec2ticks (usec); - wait_ticks (ticks); -} - -/* ------------------------------------------------------------------------- */ -#ifndef CONFIG_NAND_SPL -unsigned long ticks2usec(unsigned long ticks) -{ - ulong tbclk = get_tbclk(); - - /* usec = ticks * 1000000 / tbclk - * Multiplication would overflow at ~4.2e3 ticks, - * so we break it up into - * usec = ( ( ticks * 1000) / tbclk ) * 1000; - */ - ticks *= 1000L; - ticks /= tbclk; - ticks *= 1000L; - - return ((ulong)ticks); -} -#endif -/* ------------------------------------------------------------------------- */ - -int init_timebase (void) -{ -#if defined(CONFIG_5xx) || defined(CONFIG_8xx) - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - - /* unlock */ - immap->im_sitk.sitk_tbk = KAPWR_KEY; -#endif - - /* reset */ - asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;"); - -#if defined(CONFIG_5xx) || defined(CONFIG_8xx) - /* enable */ - immap->im_sit.sit_tbscr |= TBSCR_TBE; -#endif - return (0); -} -/* ------------------------------------------------------------------------- */ |