Merge branch 'cpsw-per-channel-shaping'

Ivan Khoronzhuk says:

====================
cpsw: add per channel shaper configuration

This series is intended to allow user to set rate for per channel
shapers at cpdma level. This patchset doesn't have impact on performance.
The rate can be set with:

echo 100 > /sys/class/net/ethX/queues/tx-0/tx_maxrate

Tested on am572xx
Based on net-next/master
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/davinci_cpdma.h

@@ -36,6 +36,7 @@ struct cpdma_params {
 	u32			desc_hw_addr;
 	int			desc_mem_size;
 	int			desc_align;
+	u32			bus_freq_mhz;
 
 	/*
 	 * Some instances of embedded cpdma controllers have extra control and
@@ -90,8 +91,13 @@ int cpdma_chan_int_ctrl(struct cpdma_chan *chan, bool enable);
 u32 cpdma_ctrl_rxchs_state(struct cpdma_ctlr *ctlr);
 u32 cpdma_ctrl_txchs_state(struct cpdma_ctlr *ctlr);
 bool cpdma_check_free_tx_desc(struct cpdma_chan *chan);
+int cpdma_chan_set_weight(struct cpdma_chan *ch, int weight);
+int cpdma_chan_set_rate(struct cpdma_chan *ch, u32 rate);
+u32 cpdma_chan_get_rate(struct cpdma_chan *ch);
+u32 cpdma_chan_get_min_rate(struct cpdma_ctlr *ctlr);
 
 enum cpdma_control {
+	CPDMA_TX_RLIM,			/* read-write */
 	CPDMA_CMD_IDLE,			/* write-only */
 	CPDMA_COPY_ERROR_FRAMES,	/* read-write */
 	CPDMA_RX_OFF_LEN_UPDATE,	/* read-write */