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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/unicore32/include/mach/regs-dmac.h
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/*

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 * PKUnity Direct Memory Access Controller (DMAC)

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 */

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/*

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 * Interrupt Status Reg DMAC_ISR.

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 */

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#define DMAC_ISR		(PKUNITY_DMAC_BASE + 0x0020)

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/*

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 * Interrupt Transfer Complete Status Reg DMAC_ITCSR.

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 */

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#define DMAC_ITCSR		(PKUNITY_DMAC_BASE + 0x0050)

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/*

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 * Interrupt Transfer Complete Clear Reg DMAC_ITCCR.

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 */

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#define DMAC_ITCCR		(PKUNITY_DMAC_BASE + 0x0060)

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/*

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 * Interrupt Error Status Reg DMAC_IESR.

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 */

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#define DMAC_IESR		(PKUNITY_DMAC_BASE + 0x0080)

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/*

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 * Interrupt Error Clear Reg DMAC_IECR.

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 */

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#define DMAC_IECR		(PKUNITY_DMAC_BASE + 0x0090)

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/*

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 * Enable Channels Reg DMAC_ENCH.

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 */

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#define DMAC_ENCH		(PKUNITY_DMAC_BASE + 0x00B0)

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/*

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 * DMA control reg. Space [byte]

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 */

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#define DMASp                   0x00000100

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/*

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 * Source Addr DMAC_SRCADDR(ch).

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 */

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#define DMAC_SRCADDR(ch)	(PKUNITY_DMAC_BASE + (ch)*DMASp + 0x00)

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/*

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 * Destination Addr DMAC_DESTADDR(ch).

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 */

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#define DMAC_DESTADDR(ch)	(PKUNITY_DMAC_BASE + (ch)*DMASp + 0x04)

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/*

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 * Control Reg DMAC_CONTROL(ch).

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 */

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#define DMAC_CONTROL(ch)	(PKUNITY_DMAC_BASE + (ch)*DMASp + 0x0C)

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/*

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 * Configuration Reg DMAC_CONFIG(ch).

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 */

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#define DMAC_CONFIG(ch)		(PKUNITY_DMAC_BASE + (ch)*DMASp + 0x10)

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#define DMAC_IR_MASK            FMASK(6, 0)

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/*

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 * select channel (ch)

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 */

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#define DMAC_CHANNEL(ch)	FIELD(1, 1, (ch))

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#define DMAC_CONTROL_SIZE_BYTE(v)       (FIELD((v), 12, 14) | \

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					FIELD(0, 3, 9) | FIELD(0, 3, 6))

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#define DMAC_CONTROL_SIZE_HWORD(v)      (FIELD((v) >> 1, 12, 14) | \

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					FIELD(1, 3, 9) | FIELD(1, 3, 6))

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#define DMAC_CONTROL_SIZE_WORD(v)       (FIELD((v) >> 2, 12, 14) | \

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					FIELD(2, 3, 9) | FIELD(2, 3, 6))

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#define DMAC_CONTROL_DI                 FIELD(1, 1, 13)

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#define DMAC_CONTROL_SI                 FIELD(1, 1, 12)

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#define DMAC_CONTROL_BURST_1BYTE        (FIELD(0, 3, 3) | FIELD(0, 3, 0))

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#define DMAC_CONTROL_BURST_4BYTE        (FIELD(3, 3, 3) | FIELD(3, 3, 0))

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#define DMAC_CONTROL_BURST_8BYTE        (FIELD(5, 3, 3) | FIELD(5, 3, 0))

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#define DMAC_CONTROL_BURST_16BYTE       (FIELD(7, 3, 3) | FIELD(7, 3, 0))

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#define	DMAC_CONFIG_UART0_WR    (FIELD(2, 4, 11) | FIELD(1, 2, 1))

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#define	DMAC_CONFIG_UART0_RD    (FIELD(2, 4, 7)  | FIELD(2, 2, 1))

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#define	DMAC_CONFIG_UART1_WR    (FIELD(3, 4, 11) | FIELD(1, 2, 1))

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#define	DMAC_CONFIG_UART1RD     (FIELD(3, 4, 7)  | FIELD(2, 2, 1))

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#define	DMAC_CONFIG_AC97WR      (FIELD(4, 4, 11) | FIELD(1, 2, 1))

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#define	DMAC_CONFIG_AC97RD      (FIELD(4, 4, 7)  | FIELD(2, 2, 1))

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#define	DMAC_CONFIG_MMCWR       (FIELD(7, 4, 11) | FIELD(1, 2, 1))

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#define	DMAC_CONFIG_MMCRD       (FIELD(7, 4, 7)  | FIELD(2, 2, 1))

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#define DMAC_CONFIG_MASKITC     FIELD(1, 1, 4)

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#define DMAC_CONFIG_MASKIE      FIELD(1, 1, 3)

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#define DMAC_CONFIG_EN          FIELD(1, 1, 0)

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