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Current Path : /lib/modules/3.10.0-1160.92.1.el7.x86_64/source/include/linux/amba/
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Current File : //lib/modules/3.10.0-1160.92.1.el7.x86_64/source/include/linux/amba/pl080.h
/* include/linux/amba/pl080.h
 *
 * Copyright 2008 Openmoko, Inc.
 * Copyright 2008 Simtec Electronics
 *      http://armlinux.simtec.co.uk/
 *      Ben Dooks <ben@simtec.co.uk>
 *
 * ARM PrimeCell PL080 DMA controller
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

/* Note, there are some Samsung updates to this controller block which
 * make it not entierly compatible with the PL080 specification from
 * ARM. When in doubt, check the Samsung documentation first.
 *
 * The Samsung defines are PL080S, and add an extra control register,
 * the ability to move more than 2^11 counts of data and some extra
 * OneNAND features.
*/

#ifndef ASM_PL080_H
#define ASM_PL080_H

#define PL080_INT_STATUS			(0x00)
#define PL080_TC_STATUS				(0x04)
#define PL080_TC_CLEAR				(0x08)
#define PL080_ERR_STATUS			(0x0C)
#define PL080_ERR_CLEAR				(0x10)
#define PL080_RAW_TC_STATUS			(0x14)
#define PL080_RAW_ERR_STATUS			(0x18)
#define PL080_EN_CHAN				(0x1c)
#define PL080_SOFT_BREQ				(0x20)
#define PL080_SOFT_SREQ				(0x24)
#define PL080_SOFT_LBREQ			(0x28)
#define PL080_SOFT_LSREQ			(0x2C)

#define PL080_CONFIG				(0x30)
#define PL080_CONFIG_M2_BE			(1 << 2)
#define PL080_CONFIG_M1_BE			(1 << 1)
#define PL080_CONFIG_ENABLE			(1 << 0)

#define PL080_SYNC				(0x34)

/* Per channel configuration registers */

#define PL080_Cx_STRIDE				(0x20)
#define PL080_Cx_BASE(x)			((0x100 + (x * 0x20)))
#define PL080_Cx_SRC_ADDR(x)			((0x100 + (x * 0x20)))
#define PL080_Cx_DST_ADDR(x)			((0x104 + (x * 0x20)))
#define PL080_Cx_LLI(x)				((0x108 + (x * 0x20)))
#define PL080_Cx_CONTROL(x)			((0x10C + (x * 0x20)))
#define PL080_Cx_CONFIG(x)			((0x110 + (x * 0x20)))
#define PL080S_Cx_CONTROL2(x)			((0x110 + (x * 0x20)))
#define PL080S_Cx_CONFIG(x)			((0x114 + (x * 0x20)))

#define PL080_CH_SRC_ADDR			(0x00)
#define PL080_CH_DST_ADDR			(0x04)
#define PL080_CH_LLI				(0x08)
#define PL080_CH_CONTROL			(0x0C)
#define PL080_CH_CONFIG				(0x10)
#define PL080S_CH_CONTROL2			(0x10)
#define PL080S_CH_CONFIG			(0x14)

#define PL080_LLI_ADDR_MASK			(0x3fffffff << 2)
#define PL080_LLI_ADDR_SHIFT			(2)
#define PL080_LLI_LM_AHB2			(1 << 0)

#define PL080_CONTROL_TC_IRQ_EN			(1 << 31)
#define PL080_CONTROL_PROT_MASK			(0x7 << 28)
#define PL080_CONTROL_PROT_SHIFT		(28)
#define PL080_CONTROL_PROT_CACHE		(1 << 30)
#define PL080_CONTROL_PROT_BUFF			(1 << 29)
#define PL080_CONTROL_PROT_SYS			(1 << 28)
#define PL080_CONTROL_DST_INCR			(1 << 27)
#define PL080_CONTROL_SRC_INCR			(1 << 26)
#define PL080_CONTROL_DST_AHB2			(1 << 25)
#define PL080_CONTROL_SRC_AHB2			(1 << 24)
#define PL080_CONTROL_DWIDTH_MASK		(0x7 << 21)
#define PL080_CONTROL_DWIDTH_SHIFT		(21)
#define PL080_CONTROL_SWIDTH_MASK		(0x7 << 18)
#define PL080_CONTROL_SWIDTH_SHIFT		(18)
#define PL080_CONTROL_DB_SIZE_MASK		(0x7 << 15)
#define PL080_CONTROL_DB_SIZE_SHIFT		(15)
#define PL080_CONTROL_SB_SIZE_MASK		(0x7 << 12)
#define PL080_CONTROL_SB_SIZE_SHIFT		(12)
#define PL080_CONTROL_TRANSFER_SIZE_MASK	(0xfff << 0)
#define PL080_CONTROL_TRANSFER_SIZE_SHIFT	(0)

#define PL080_BSIZE_1				(0x0)
#define PL080_BSIZE_4				(0x1)
#define PL080_BSIZE_8				(0x2)
#define PL080_BSIZE_16				(0x3)
#define PL080_BSIZE_32				(0x4)
#define PL080_BSIZE_64				(0x5)
#define PL080_BSIZE_128				(0x6)
#define PL080_BSIZE_256				(0x7)

#define PL080_WIDTH_8BIT			(0x0)
#define PL080_WIDTH_16BIT			(0x1)
#define PL080_WIDTH_32BIT			(0x2)

#define PL080N_CONFIG_ITPROT			(1 << 20)
#define PL080N_CONFIG_SECPROT			(1 << 19)
#define PL080_CONFIG_HALT			(1 << 18)
#define PL080_CONFIG_ACTIVE			(1 << 17)  /* RO */
#define PL080_CONFIG_LOCK			(1 << 16)
#define PL080_CONFIG_TC_IRQ_MASK		(1 << 15)
#define PL080_CONFIG_ERR_IRQ_MASK		(1 << 14)
#define PL080_CONFIG_FLOW_CONTROL_MASK		(0x7 << 11)
#define PL080_CONFIG_FLOW_CONTROL_SHIFT		(11)
#define PL080_CONFIG_DST_SEL_MASK		(0xf << 6)
#define PL080_CONFIG_DST_SEL_SHIFT		(6)
#define PL080_CONFIG_SRC_SEL_MASK		(0xf << 1)
#define PL080_CONFIG_SRC_SEL_SHIFT		(1)
#define PL080_CONFIG_ENABLE			(1 << 0)

#define PL080_FLOW_MEM2MEM			(0x0)
#define PL080_FLOW_MEM2PER			(0x1)
#define PL080_FLOW_PER2MEM			(0x2)
#define PL080_FLOW_SRC2DST			(0x3)
#define PL080_FLOW_SRC2DST_DST			(0x4)
#define PL080_FLOW_MEM2PER_PER			(0x5)
#define PL080_FLOW_PER2MEM_PER			(0x6)
#define PL080_FLOW_SRC2DST_SRC			(0x7)

/* DMA linked list chain structure */

struct pl080_lli {
	u32	src_addr;
	u32	dst_addr;
	u32	next_lli;
	u32	control0;
};

struct pl080s_lli {
	u32	src_addr;
	u32	dst_addr;
	u32	next_lli;
	u32	control0;
	u32	control1;
};

#endif /* ASM_PL080_H */
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