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-rw-r--r--include/asm-arm/arch-pnx4008/dma.h162
1 files changed, 162 insertions, 0 deletions
diff --git a/include/asm-arm/arch-pnx4008/dma.h b/include/asm-arm/arch-pnx4008/dma.h
new file mode 100644
index 000000000000..3aee1204795b
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+++ b/include/asm-arm/arch-pnx4008/dma.h
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1/*
2 * linux/include/asm-arm/arch-pnx4008/dma.h
3 *
4 * PNX4008 DMA header file
5 *
6 * Author: Vitaly Wool
7 * Copyright: MontaVista Software Inc. (c) 2005
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#ifndef __ASM_ARCH_DMA_H
15#define __ASM_ARCH_DMA_H
16
17#include "platform.h"
18
19#define MAX_DMA_ADDRESS 0xffffffff
20
21#define MAX_DMA_CHANNELS 8
22
23#define DMAC_BASE IO_ADDRESS(PNX4008_DMA_CONFIG_BASE)
24#define DMAC_INT_STAT (DMAC_BASE + 0x0000)
25#define DMAC_INT_TC_STAT (DMAC_BASE + 0x0004)
26#define DMAC_INT_TC_CLEAR (DMAC_BASE + 0x0008)
27#define DMAC_INT_ERR_STAT (DMAC_BASE + 0x000c)
28#define DMAC_INT_ERR_CLEAR (DMAC_BASE + 0x0010)
29#define DMAC_SOFT_SREQ (DMAC_BASE + 0x0024)
30#define DMAC_CONFIG (DMAC_BASE + 0x0030)
31#define DMAC_Cx_SRC_ADDR(c) (DMAC_BASE + 0x0100 + (c) * 0x20)
32#define DMAC_Cx_DEST_ADDR(c) (DMAC_BASE + 0x0104 + (c) * 0x20)
33#define DMAC_Cx_LLI(c) (DMAC_BASE + 0x0108 + (c) * 0x20)
34#define DMAC_Cx_CONTROL(c) (DMAC_BASE + 0x010c + (c) * 0x20)
35#define DMAC_Cx_CONFIG(c) (DMAC_BASE + 0x0110 + (c) * 0x20)
36
37enum {
38 WIDTH_BYTE = 0,
39 WIDTH_HWORD,
40 WIDTH_WORD
41};
42
43enum {
44 FC_MEM2MEM_DMA,
45 FC_MEM2PER_DMA,
46 FC_PER2MEM_DMA,
47 FC_PER2PER_DMA,
48 FC_PER2PER_DPER,
49 FC_MEM2PER_PER,
50 FC_PER2MEM_PER,
51 FC_PER2PER_SPER
52};
53
54enum {
55 DMA_INT_UNKNOWN = 0,
56 DMA_ERR_INT = 1,
57 DMA_TC_INT = 2,
58};
59
60enum {
61 DMA_BUFFER_ALLOCATED = 1,
62 DMA_HAS_LL = 2,
63};
64
65enum {
66 PER_CAM_DMA_1 = 0,
67 PER_NDF_FLASH = 1,
68 PER_MBX_SLAVE_FIFO = 2,
69 PER_SPI2_REC_XMIT = 3,
70 PER_MS_SD_RX_XMIT = 4,
71 PER_HS_UART_1_XMIT = 5,
72 PER_HS_UART_1_RX = 6,
73 PER_HS_UART_2_XMIT = 7,
74 PER_HS_UART_2_RX = 8,
75 PER_HS_UART_7_XMIT = 9,
76 PER_HS_UART_7_RX = 10,
77 PER_SPI1_REC_XMIT = 11,
78 PER_MLC_NDF_SREC = 12,
79 PER_CAM_DMA_2 = 13,
80 PER_PRNG_INFIFO = 14,
81 PER_PRNG_OUTFIFO = 15,
82};
83
84struct pnx4008_dma_ch_ctrl {
85 int tc_mask;
86 int cacheable;
87 int bufferable;
88 int priv_mode;
89 int di;
90 int si;
91 int dest_ahb1;
92 int src_ahb1;
93 int dwidth;
94 int swidth;
95 int dbsize;
96 int sbsize;
97 int tr_size;
98};
99
100struct pnx4008_dma_ch_config {
101 int halt;
102 int active;
103 int lock;
104 int itc;
105 int ie;
106 int flow_cntrl;
107 int dest_per;
108 int src_per;
109};
110
111struct pnx4008_dma_ll {
112 unsigned long src_addr;
113 unsigned long dest_addr;
114 u32 next_dma;
115 unsigned long ch_ctrl;
116 struct pnx4008_dma_ll *next;
117 int flags;
118 void *alloc_data;
119 int (*free) (void *);
120};
121
122struct pnx4008_dma_config {
123 int is_ll;
124 unsigned long src_addr;
125 unsigned long dest_addr;
126 unsigned long ch_ctrl;
127 unsigned long ch_cfg;
128 struct pnx4008_dma_ll *ll;
129 u32 ll_dma;
130 int flags;
131 void *alloc_data;
132 int (*free) (void *);
133};
134
135extern struct pnx4008_dma_ll *pnx4008_alloc_ll_entry(dma_addr_t *);
136extern void pnx4008_free_ll_entry(struct pnx4008_dma_ll *, dma_addr_t);
137extern void pnx4008_free_ll(u32 ll_dma, struct pnx4008_dma_ll *);
138
139extern int pnx4008_request_channel(char *, int,
140 void (*)(int, int, void *, struct pt_regs *),
141 void *);
142extern void pnx4008_free_channel(int);
143extern int pnx4008_config_dma(int, int, int);
144extern int pnx4008_dma_pack_control(const struct pnx4008_dma_ch_ctrl *,
145 unsigned long *);
146extern int pnx4008_dma_parse_control(unsigned long,
147 struct pnx4008_dma_ch_ctrl *);
148extern int pnx4008_dma_pack_config(const struct pnx4008_dma_ch_config *,
149 unsigned long *);
150extern int pnx4008_dma_parse_config(unsigned long,
151 struct pnx4008_dma_ch_config *);
152extern int pnx4008_config_channel(int, struct pnx4008_dma_config *);
153extern int pnx4008_channel_get_config(int, struct pnx4008_dma_config *);
154extern int pnx4008_dma_ch_enable(int);
155extern int pnx4008_dma_ch_disable(int);
156extern int pnx4008_dma_ch_enabled(int);
157extern void pnx4008_dma_split_head_entry(struct pnx4008_dma_config *,
158 struct pnx4008_dma_ch_ctrl *);
159extern void pnx4008_dma_split_ll_entry(struct pnx4008_dma_ll *,
160 struct pnx4008_dma_ch_ctrl *);
161
162#endif /* _ASM_ARCH_DMA_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 13:03:36 -0500