1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef BCM63XX_IUDMA_H_
3 #define BCM63XX_IUDMA_H_
4 
5 #include <linux/types.h>
6 
7 /*
8  * rx/tx dma descriptor
9  */
10 struct bcm_enet_desc {
11 	u32 len_stat;
12 	u32 address;
13 };
14 
15 /* control */
16 #define DMADESC_LENGTH_SHIFT	16
17 #define DMADESC_LENGTH_MASK	(0xfff << DMADESC_LENGTH_SHIFT)
18 #define DMADESC_OWNER_MASK	(1 << 15)
19 #define DMADESC_EOP_MASK	(1 << 14)
20 #define DMADESC_SOP_MASK	(1 << 13)
21 #define DMADESC_ESOP_MASK	(DMADESC_EOP_MASK | DMADESC_SOP_MASK)
22 #define DMADESC_WRAP_MASK	(1 << 12)
23 #define DMADESC_USB_NOZERO_MASK (1 << 1)
24 #define DMADESC_USB_ZERO_MASK	(1 << 0)
25 
26 /* status */
27 #define DMADESC_UNDER_MASK	(1 << 9)
28 #define DMADESC_APPEND_CRC	(1 << 8)
29 #define DMADESC_OVSIZE_MASK	(1 << 4)
30 #define DMADESC_RXER_MASK	(1 << 2)
31 #define DMADESC_CRC_MASK	(1 << 1)
32 #define DMADESC_OV_MASK		(1 << 0)
33 #define DMADESC_ERR_MASK	(DMADESC_UNDER_MASK | \
34 				DMADESC_OVSIZE_MASK | \
35 				DMADESC_RXER_MASK | \
36 				DMADESC_CRC_MASK | \
37 				DMADESC_OV_MASK)
38 
39 #endif /* ! BCM63XX_IUDMA_H_ */
40