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Handle Asynchronous DDR clock on 85xx

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The MPC8572 introduces the concept of an asynchronous DDR clock with
regards to the platform clock.

Introduce get_ddr_freq() to report the DDR freq regardless of sync/async
mode.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-12-07 04:59:26 -06:00
parent 22abb2d2ea
commit d435793229
5 changed files with 45 additions and 4 deletions
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include/common.h
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@ -497,6 +497,7 @@ ulong get_bus_freq (ulong);
#if defined(CONFIG_MPC85xx)
typedef MPC85xx_SYS_INFO sys_info_t;
void get_sys_info ( sys_info_t * );
ulong get_ddr_freq (ulong);
#endif
#if defined(CONFIG_MPC86xx)
typedef MPC86xx_SYS_INFO sys_info_t;