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powerpc/mpc5200: Add PSC helpers for bestcomm engine

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Simplify the interface for setting up bestcomm DMA to PSCs by adding
some helper functions.  The helper function sets the correct values
for the initator and ipr values in PSC DMA tasks based on the PSC
number.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Grant Likely
2008-07-01 21:38:16 -06:00
parent 75195dabce
commit 7ba6d6dc8d
2 changed files with 100 additions and 0 deletions
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5
arch/powerpc/sysdev/bestcomm/gen_bd.h
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@@ -44,5 +44,10 @@ extern void
bcom_gen_bd_tx_release(struct bcom_task *tsk);
/* PSC support utility wrappers */
struct bcom_task * bcom_psc_gen_bd_rx_init(unsigned psc_num, int queue_len,
phys_addr_t fifo, int maxbufsize);
struct bcom_task * bcom_psc_gen_bd_tx_init(unsigned psc_num, int queue_len,
phys_addr_t fifo);
#endif /* __BESTCOMM_GEN_BD_H__ */