140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/* include/linux/amba/pl080.h
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*
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* Copyright 2008 Openmoko, Inc.
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* Copyright 2008 Simtec Electronics
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* http://armlinux.simtec.co.uk/
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* Ben Dooks <ben@simtec.co.uk>
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*
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* ARM PrimeCell PL080 DMA controller
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/* Note, there are some Samsung updates to this controller block which
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* make it not entierly compatible with the PL080 specification from
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* ARM. When in doubt, check the Samsung documentation first.
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*
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* The Samsung defines are PL080S, and add an extra control register,
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* the ability to move more than 2^11 counts of data and some extra
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* OneNAND features.
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*/
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#ifndef ASM_PL080_H
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#define ASM_PL080_H
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#define PL080_INT_STATUS (0x00)
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#define PL080_TC_STATUS (0x04)
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#define PL080_TC_CLEAR (0x08)
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#define PL080_ERR_STATUS (0x0C)
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#define PL080_ERR_CLEAR (0x10)
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#define PL080_RAW_TC_STATUS (0x14)
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#define PL080_RAW_ERR_STATUS (0x18)
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#define PL080_EN_CHAN (0x1c)
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#define PL080_SOFT_BREQ (0x20)
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#define PL080_SOFT_SREQ (0x24)
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#define PL080_SOFT_LBREQ (0x28)
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#define PL080_SOFT_LSREQ (0x2C)
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#define PL080_CONFIG (0x30)
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#define PL080_CONFIG_M2_BE BIT(2)
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#define PL080_CONFIG_M1_BE BIT(1)
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#define PL080_CONFIG_ENABLE BIT(0)
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#define PL080_SYNC (0x34)
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/* Per channel configuration registers */
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/* Per channel configuration registers */
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#define PL080_Cx_BASE(x) ((0x100 + (x * 0x20)))
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#define PL080_CH_SRC_ADDR (0x00)
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#define PL080_CH_DST_ADDR (0x04)
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#define PL080_CH_LLI (0x08)
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#define PL080_CH_CONTROL (0x0C)
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#define PL080_CH_CONFIG (0x10)
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#define PL080S_CH_CONTROL2 (0x10)
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#define PL080S_CH_CONFIG (0x14)
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#define PL080_LLI_ADDR_MASK (0x3fffffff << 2)
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#define PL080_LLI_ADDR_SHIFT (2)
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#define PL080_LLI_LM_AHB2 BIT(0)
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#define PL080_CONTROL_TC_IRQ_EN BIT(31)
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#define PL080_CONTROL_PROT_MASK (0x7 << 28)
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#define PL080_CONTROL_PROT_SHIFT (28)
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#define PL080_CONTROL_PROT_CACHE BIT(30)
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#define PL080_CONTROL_PROT_BUFF BIT(29)
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#define PL080_CONTROL_PROT_SYS BIT(28)
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#define PL080_CONTROL_DST_INCR BIT(27)
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#define PL080_CONTROL_SRC_INCR BIT(26)
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#define PL080_CONTROL_DST_AHB2 BIT(25)
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#define PL080_CONTROL_SRC_AHB2 BIT(24)
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#define PL080_CONTROL_DWIDTH_MASK (0x7 << 21)
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#define PL080_CONTROL_DWIDTH_SHIFT (21)
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#define PL080_CONTROL_SWIDTH_MASK (0x7 << 18)
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#define PL080_CONTROL_SWIDTH_SHIFT (18)
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#define PL080_CONTROL_DB_SIZE_MASK (0x7 << 15)
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#define PL080_CONTROL_DB_SIZE_SHIFT (15)
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#define PL080_CONTROL_SB_SIZE_MASK (0x7 << 12)
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#define PL080_CONTROL_SB_SIZE_SHIFT (12)
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#define PL080_CONTROL_TRANSFER_SIZE_MASK (0xfff << 0)
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#define PL080S_CONTROL_TRANSFER_SIZE_MASK (0x1ffffff << 0)
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#define PL080_CONTROL_TRANSFER_SIZE_SHIFT (0)
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#define PL080_BSIZE_1 (0x0)
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#define PL080_BSIZE_4 (0x1)
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#define PL080_BSIZE_8 (0x2)
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#define PL080_BSIZE_16 (0x3)
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#define PL080_BSIZE_32 (0x4)
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#define PL080_BSIZE_64 (0x5)
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#define PL080_BSIZE_128 (0x6)
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#define PL080_BSIZE_256 (0x7)
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#define PL080_WIDTH_8BIT (0x0)
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#define PL080_WIDTH_16BIT (0x1)
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#define PL080_WIDTH_32BIT (0x2)
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#define PL080N_CONFIG_ITPROT BIT(20)
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#define PL080N_CONFIG_SECPROT BIT(19)
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#define PL080_CONFIG_HALT BIT(18)
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#define PL080_CONFIG_ACTIVE BIT(17) /* RO */
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#define PL080_CONFIG_LOCK BIT(16)
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#define PL080_CONFIG_TC_IRQ_MASK BIT(15)
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#define PL080_CONFIG_ERR_IRQ_MASK BIT(14)
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#define PL080_CONFIG_FLOW_CONTROL_MASK (0x7 << 11)
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#define PL080_CONFIG_FLOW_CONTROL_SHIFT (11)
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#define PL080_CONFIG_DST_SEL_MASK (0xf << 6)
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#define PL080_CONFIG_DST_SEL_SHIFT (6)
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#define PL080_CONFIG_SRC_SEL_MASK (0xf << 1)
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#define PL080_CONFIG_SRC_SEL_SHIFT (1)
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#define PL080_CONFIG_ENABLE BIT(0)
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#define PL080_FLOW_MEM2MEM (0x0)
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#define PL080_FLOW_MEM2PER (0x1)
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#define PL080_FLOW_PER2MEM (0x2)
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#define PL080_FLOW_SRC2DST (0x3)
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#define PL080_FLOW_SRC2DST_DST (0x4)
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#define PL080_FLOW_MEM2PER_PER (0x5)
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#define PL080_FLOW_PER2MEM_PER (0x6)
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#define PL080_FLOW_SRC2DST_SRC (0x7)
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/* DMA linked list chain structure */
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struct pl080_lli {
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u32 src_addr;
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u32 dst_addr;
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u32 next_lli;
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u32 control0;
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};
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struct pl080s_lli {
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u32 src_addr;
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u32 dst_addr;
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u32 next_lli;
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u32 control0;
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u32 control1;
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};
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#endif /* ASM_PL080_H */
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