40 lines
1004 B
C
40 lines
1004 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BCM63XX_IUDMA_H_
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#define BCM63XX_IUDMA_H_
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#include <linux/types.h>
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/*
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* rx/tx dma descriptor
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*/
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struct bcm_enet_desc {
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u32 len_stat;
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u32 address;
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};
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/* control */
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#define DMADESC_LENGTH_SHIFT 16
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#define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT)
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#define DMADESC_OWNER_MASK (1 << 15)
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#define DMADESC_EOP_MASK (1 << 14)
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#define DMADESC_SOP_MASK (1 << 13)
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#define DMADESC_ESOP_MASK (DMADESC_EOP_MASK | DMADESC_SOP_MASK)
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#define DMADESC_WRAP_MASK (1 << 12)
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#define DMADESC_USB_NOZERO_MASK (1 << 1)
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#define DMADESC_USB_ZERO_MASK (1 << 0)
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/* status */
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#define DMADESC_UNDER_MASK (1 << 9)
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#define DMADESC_APPEND_CRC (1 << 8)
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#define DMADESC_OVSIZE_MASK (1 << 4)
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#define DMADESC_RXER_MASK (1 << 2)
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#define DMADESC_CRC_MASK (1 << 1)
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#define DMADESC_OV_MASK (1 << 0)
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#define DMADESC_ERR_MASK (DMADESC_UNDER_MASK | \
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DMADESC_OVSIZE_MASK | \
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DMADESC_RXER_MASK | \
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DMADESC_CRC_MASK | \
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DMADESC_OV_MASK)
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#endif /* ! BCM63XX_IUDMA_H_ */
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