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cpts: specify the input clock frequency via DT

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This patch adds a way to configure the CPTS input clock scaling factors
via the device tree.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran
2012-10-29 08:45:19 +00:00
committed by David S. Miller
parent 78ca0b2873
commit 00ab94eeaf
3 changed files with 22 additions and 0 deletions
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2
include/linux/platform_data/cpsw.h
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@@ -34,6 +34,8 @@ struct cpsw_platform_data {
u32 slaves; /* number of slave cpgmac ports */
struct cpsw_slave_data *slave_data;
u32 cpts_active_slave; /* time stamping slave */
u32 cpts_clock_mult; /* convert input clock ticks to nanoseconds */
u32 cpts_clock_shift; /* convert input clock ticks to nanoseconds */
u32 ale_reg_ofs; /* address lookup engine reg offset */
u32 ale_entries; /* ale table size */