powerpc/mpc5200: Add PSC helpers for bestcomm engine
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>
diff --git a/arch/powerpc/sysdev/bestcomm/gen_bd.h b/arch/powerpc/sysdev/bestcomm/gen_bd.h
index 5b6fa80..de47260 100644
--- a/arch/powerpc/sysdev/bestcomm/gen_bd.h
+++ b/arch/powerpc/sysdev/bestcomm/gen_bd.h
@@ -44,5 +44,10 @@
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__ */