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MIPS: BCM63XX: Move DMA descriptor definition into common header file
The "IUDMA" engine used by bcm63xx_enet is also used by other blocks, such as the USB 2.0 device. Move the definitions into a common file so that they do not need to be duplicated in each driver. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4082/ Signed-off-by: John Crispin <blogic@openwrt.org>
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Kevin Cernekee
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John Crispin
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Aug 30, 2012
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Original file line number | Diff line number | Diff line change |
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#ifndef BCM63XX_IUDMA_H_ | ||
#define BCM63XX_IUDMA_H_ | ||
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#include <linux/types.h> | ||
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/* | ||
* rx/tx dma descriptor | ||
*/ | ||
struct bcm_enet_desc { | ||
u32 len_stat; | ||
u32 address; | ||
}; | ||
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#define DMADESC_LENGTH_SHIFT 16 | ||
#define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT) | ||
#define DMADESC_OWNER_MASK (1 << 15) | ||
#define DMADESC_EOP_MASK (1 << 14) | ||
#define DMADESC_SOP_MASK (1 << 13) | ||
#define DMADESC_ESOP_MASK (DMADESC_EOP_MASK | DMADESC_SOP_MASK) | ||
#define DMADESC_WRAP_MASK (1 << 12) | ||
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#define DMADESC_UNDER_MASK (1 << 9) | ||
#define DMADESC_APPEND_CRC (1 << 8) | ||
#define DMADESC_OVSIZE_MASK (1 << 4) | ||
#define DMADESC_RXER_MASK (1 << 2) | ||
#define DMADESC_CRC_MASK (1 << 1) | ||
#define DMADESC_OV_MASK (1 << 0) | ||
#define DMADESC_ERR_MASK (DMADESC_UNDER_MASK | \ | ||
DMADESC_OVSIZE_MASK | \ | ||
DMADESC_RXER_MASK | \ | ||
DMADESC_CRC_MASK | \ | ||
DMADESC_OV_MASK) | ||
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#endif /* ! BCM63XX_IUDMA_H_ */ |
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