76 #define AT91_BR_BRP_MASK GENMASK(22, 16)
82 #define AT91_ECR_TEC_MASK GENMASK(23, 16)
87 #define AT91_MMR_PRIOR_MASK GENMASK(19, 16)
95 #define AT91_MSR_MDLC_MASK GENMASK(19, 16)
101 #define AT91_MCR_MDLC_MASK GENMASK(19, 16)
117 #define AT91_IRQ_ERRA BIT(16)
190 	.tseg1_max	= 16,
297 				    unsigned int mb, enum at91_mb_mode mode,  in set_mb_mode_prio()  argument
303 	at91_write(priv, AT91_MMR(mb), reg_mmr);  in set_mb_mode_prio()
306 static inline void set_mb_mode(const struct at91_priv *priv, unsigned int mb,  in set_mb_mode()  argument
309 	set_mb_mode_prio(priv, mb, mode, 0);  in set_mb_mode()
468  *                 (mb - get_mb_tx_first(priv));
475 	unsigned int mb, prio;  in at91_start_xmit()  local
481 	mb = get_tx_head_mb(priv);  in at91_start_xmit()
484 	if (unlikely(!(at91_read(priv, AT91_MSR(mb)) & AT91_MSR_MRDY))) {  in at91_start_xmit()
498 	/* disable MB while writing ID (see datasheet) */  in at91_start_xmit()
499 	set_mb_mode(priv, mb, AT91_MB_MODE_DISABLED);  in at91_start_xmit()
500 	at91_write(priv, AT91_MID(mb), reg_mid);  in at91_start_xmit()
501 	set_mb_mode_prio(priv, mb, AT91_MB_MODE_TX, prio);  in at91_start_xmit()
503 	at91_write(priv, AT91_MDL(mb), *(u32 *)(cf->data + 0));  in at91_start_xmit()
504 	at91_write(priv, AT91_MDH(mb), *(u32 *)(cf->data + 4));  in at91_start_xmit()
507 	at91_write(priv, AT91_MCR(mb), reg_mcr);  in at91_start_xmit()
509 	/* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */  in at91_start_xmit()
510 	can_put_echo_skb(skb, dev, mb - get_mb_tx_first(priv), 0);  in at91_start_xmit()
513 	 * of a prio+mb counter wrap around. This is the case if  in at91_start_xmit()
526 	at91_write(priv, AT91_IER, 1 << mb);  in at91_start_xmit()
579  * @mb: mailbox number to read from
586 					 unsigned int mb, u32 *timestamp,  in at91_mailbox_read()  argument
594 	reg_msr = at91_read(priv, AT91_MSR(mb));  in at91_mailbox_read()
609 	reg_mid = at91_read(priv, AT91_MID(mb));  in at91_mailbox_read()
617 	*timestamp = FIELD_GET(AT91_MSR_MTIMESTAMP_MASK, reg_msr) << 16;  in at91_mailbox_read()
624 		*(u32 *)(cf->data + 0) = at91_read(priv, AT91_MDL(mb));  in at91_mailbox_read()
625 		*(u32 *)(cf->data + 4) = at91_read(priv, AT91_MDH(mb));  in at91_mailbox_read()
629 	at91_write(priv, AT91_MID(mb), AT91_MID_MIDE);  in at91_mailbox_read()
631 	if (unlikely(mb == get_mb_rx_last(priv) && reg_msr & AT91_MSR_MMI))  in at91_mailbox_read()
635 	at91_write(priv, AT91_MCR(mb), AT91_MCR_MTCR);  in at91_mailbox_read()
655 	unsigned int mb;  in at91_irq_tx()  local
658 		mb = get_tx_tail_mb(priv);  in at91_irq_tx()
661 		if (!(reg_sr & (1 << mb)))  in at91_irq_tx()
665 		at91_write(priv, AT91_IDR, 1 << mb);  in at91_irq_tx()
672 		reg_msr = at91_read(priv, AT91_MSR(mb));  in at91_irq_tx()
677 		/* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */  in at91_irq_tx()
679 			can_get_echo_skb(dev, mb - get_mb_tx_first(priv), NULL);  in at91_irq_tx()