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derive timebase clicks from bus frequency

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Thomas Doerfler
2008-09-05 13:23:39 +00:00
parent 5c6d518663
commit 7d8dadee05
2 changed files with 6 additions and 2 deletions
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6
c/src/lib/libbsp/powerpc/gen83xx/ChangeLog
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@@ -1,4 +1,8 @@
2008-09-05 Ralf Corsépius <ralf.corsepius@rtems.org> 2008-09-05 Sebastian Huber <sebastian.huber@embedded-brains.de>
* startup/bspstart.c: Derive time base clicks from bus frequency.
08-09-05 Ralf Corsépius <ralf.corsepius@rtems.org>
* console/console.c: Convert to "bool". * console/console.c: Convert to "bool".

2
c/src/lib/libbsp/powerpc/gen83xx/startup/bspstart.c
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@@ -148,7 +148,7 @@ void bsp_start( void)
#ifdef HAS_UBOOT #ifdef HAS_UBOOT
BSP_bus_frequency = mpc83xx_uboot_board_info.bi_busfreq; BSP_bus_frequency = mpc83xx_uboot_board_info.bi_busfreq;
bsp_clicks_per_usec = mpc83xx_uboot_board_info.bi_intfreq / 8000000; bsp_clicks_per_usec = mpc83xx_uboot_board_info.bi_busfreq / 4000000;
#else /* HAS_UBOOT */ #else /* HAS_UBOOT */
BSP_bus_frequency = BSP_CLKIN_FRQ * BSP_SYSPLL_MF / BSP_SYSPLL_CKID; BSP_bus_frequency = BSP_CLKIN_FRQ * BSP_SYSPLL_MF / BSP_SYSPLL_CKID;
bsp_clicks_per_usec = BSP_bus_frequency / 1000000; bsp_clicks_per_usec = BSP_bus_frequency / 1000000;