2
* 440SPe's DMA engines support header file
4
* 2006-2009 (C) DENX Software Engineering.
6
* Author: Yuri Tikhonov <yur@emcraft.com>
8
* This file is licensed under the term of the GNU General Public License
9
* version 2. The program licensed "as is" without any warranty of any
10
* kind, whether express or implied.
13
#ifndef _PPC440SPE_DMA_H
14
#define _PPC440SPE_DMA_H
16
#include <linux/types.h>
18
/* Number of elements in the array with statical CDBs */
19
#define MAX_STAT_DMA_CDBS 16
20
/* Number of DMA engines available on the contoller */
21
#define DMA_ENGINES_NUM 2
23
/* Maximum h/w supported number of destinations */
24
#define DMA_DEST_MAX_NUM 2
27
#define DMA0_FIFO_SIZE 0x1000
28
#define DMA1_FIFO_SIZE 0x1000
29
#define DMA_FIFO_ENABLE (1<<12)
31
/* DMA Configuration Register. Data Transfer Engine PLB Priority: */
32
#define DMA_CFG_DXEPR_LP (0<<26)
33
#define DMA_CFG_DXEPR_HP (3<<26)
34
#define DMA_CFG_DXEPR_HHP (2<<26)
35
#define DMA_CFG_DXEPR_HHHP (1<<26)
37
/* DMA Configuration Register. DMA FIFO Manager PLB Priority: */
38
#define DMA_CFG_DFMPP_LP (0<<23)
39
#define DMA_CFG_DFMPP_HP (3<<23)
40
#define DMA_CFG_DFMPP_HHP (2<<23)
41
#define DMA_CFG_DFMPP_HHHP (1<<23)
43
/* DMA Configuration Register. Force 64-byte Alignment */
44
#define DMA_CFG_FALGN (1 << 19)
47
#define D0CPF_INT (1<<12)
48
#define D0CSF_INT (1<<11)
49
#define D1CPF_INT (1<<10)
50
#define D1CSF_INT (1<<9)
52
#define DMAE_INT (1<<9)
54
/* I2O IOP Interrupt Mask Register */
55
#define I2O_IOPIM_P0SNE (1<<3)
56
#define I2O_IOPIM_P0EM (1<<5)
57
#define I2O_IOPIM_P1SNE (1<<6)
58
#define I2O_IOPIM_P1EM (1<<8)
61
#define DMA_CDB_MSK (0xF)
62
#define DMA_CDB_64B_ADDR (1<<2)
63
#define DMA_CDB_NO_INT (1<<3)
64
#define DMA_CDB_STATUS_MSK (0x3)
65
#define DMA_CDB_ADDR_MSK (0xFFFFFFF0)
68
#define DMA_CDB_OPC_NO_OP (0x00)
69
#define DMA_CDB_OPC_MV_SG1_SG2 (0x01)
70
#define DMA_CDB_OPC_MULTICAST (0x05)
71
#define DMA_CDB_OPC_DFILL128 (0x24)
72
#define DMA_CDB_OPC_DCHECK128 (0x23)
74
#define DMA_CUED_XOR_BASE (0x10000000)
75
#define DMA_CUED_XOR_HB (0x00000008)
78
#define DMA_CUED_MULT1_OFF 0
79
#define DMA_CUED_MULT2_OFF 8
80
#define DMA_CUED_MULT3_OFF 16
81
#define DMA_CUED_REGION_OFF 24
82
#define DMA_CUED_XOR_WIN_MSK (0xFC000000)
84
#define DMA_CUED_MULT1_OFF 2
85
#define DMA_CUED_MULT2_OFF 10
86
#define DMA_CUED_MULT3_OFF 18
87
#define DMA_CUED_REGION_OFF 26
88
#define DMA_CUED_XOR_WIN_MSK (0xF0000000)
91
#define DMA_CUED_REGION_MSK 0x3
92
#define DMA_RXOR123 0x0
93
#define DMA_RXOR124 0x1
94
#define DMA_RXOR125 0x2
95
#define DMA_RXOR12 0x3
98
#define DMA_CDB_SG_SRC 1
99
#define DMA_CDB_SG_DST1 2
100
#define DMA_CDB_SG_DST2 3
103
* DMAx engines Command Descriptor Block Type
107
* Basic CDB structure (Table 20-17, p.499, 440spe_um_1_22.pdf)
109
u8 pad0[2]; /* reserved */
110
u8 attr; /* attributes */
112
u32 sg1u; /* upper SG1 address */
113
u32 sg1l; /* lower SG1 address */
114
u32 cnt; /* SG count, 3B used */
115
u32 sg2u; /* upper SG2 address */
116
u32 sg2l; /* lower SG2 address */
117
u32 sg3u; /* upper SG3 address */
118
u32 sg3l; /* lower SG3 address */
122
* DMAx hardware registers (p.515 in 440SPe UM 1.22)
156
* I2O hardware registers (p.528 in 440SPe UM 1.22)
223
#endif /* _PPC440SPE_DMA_H */