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| author | Richard Retanubun <RichardRetanubun@RuggedCom.com> | 2009-01-29 14:36:06 -0500 |
|---|---|---|
| committer | John Rigby <jrigby@freescale.com> | 2009-02-06 14:54:47 -0700 |
| commit | e0db344fabfeb4f9649846f94838f51172f6a1f6 (patch) | |
| tree | 6c30ca2295619fba33e47ddf63474b209ed6d5df /cpu/mcf52x2/cpu_init.c | |
| parent | d1ef25dd81c79dcfad5c2ff0162b1bea21d04bc3 (diff) | |
| download | u-boot-imx-e0db344fabfeb4f9649846f94838f51172f6a1f6.zip u-boot-imx-e0db344fabfeb4f9649846f94838f51172f6a1f6.tar.gz u-boot-imx-e0db344fabfeb4f9649846f94838f51172f6a1f6.tar.bz2 | |
Coldfire: M5271: Allow board header file to specify clock multiplier
M5271 dynamic clock multiplier. It is currently fixed at 100MHz.
Allow the board header file to set their own multiplier and divider.
Added the #define for the multiplier and divider to the cpu header file.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Diffstat (limited to 'cpu/mcf52x2/cpu_init.c')
| -rw-r--r-- | cpu/mcf52x2/cpu_init.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c index d88acc5..11f70b0 100644 --- a/cpu/mcf52x2/cpu_init.c +++ b/cpu/mcf52x2/cpu_init.c @@ -181,9 +181,14 @@ void cpu_init_f(void) /* FlexBus Chipselect */ init_fbcs(); +#ifdef CONFIG_SYS_MCF_SYNCR + /* Set clockspeed according to board header file */ + mbar_writeLong(MCF_FMPLL_SYNCR, CONFIG_SYS_MCF_SYNCR); +#else /* Set clockspeed to 100MHz */ - mbar_writeShort(MCF_FMPLL_SYNCR, + mbar_writeLong(MCF_FMPLL_SYNCR, MCF_FMPLL_SYNCR_MFD(0) | MCF_FMPLL_SYNCR_RFD(0)); +#endif while (!mbar_readByte(MCF_FMPLL_SYNSR) & MCF_FMPLL_SYNSR_LOCK) ; } |