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1 /*
2  * Copyright (c) 2008, Google Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef __ASM_ARCH_MSM7200_DMOV_H
30 #define __ASM_ARCH_MSM7200_DMOV_H
31 
32 #define MSM_DMOV_BASE 0xA9700000
33 
34 /* see 80-VA736-2 C pp 415-439 */
35 
36 #define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2))
37 #define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2))
38 #define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2))
39 #define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2))
40 
41 /* only security domain 3 is available to the ARM11
42 **
43 ** SD0 -> mARM trusted, SD1 -> mARM nontrusted, SD2 -> aDSP, SD3 -> aARM
44 **
45 */
46 
47 #define DMOV_CMD_PTR(ch)      DMOV_SD3(0x000, ch)
48 #define DMOV_CMD_LIST         (0 << 29) /* does not work */
49 #define DMOV_CMD_PTR_LIST     (1 << 29) /* works */
50 #define DMOV_CMD_INPUT_CFG    (2 << 29) /* untested */
51 #define DMOV_CMD_OUTPUT_CFG   (3 << 29) /* untested */
52 #define DMOV_CMD_ADDR(addr)   ((addr) >> 3)
53 
54 #define DMOV_RSLT(ch)         DMOV_SD3(0x040, ch)
55 #define DMOV_RSLT_VALID       (1 << 31) /* 0 == host has empties result fifo */
56 #define DMOV_RSLT_ERROR       (1 << 3)
57 #define DMOV_RSLT_FLUSH       (1 << 2)
58 #define DMOV_RSLT_DONE        (1 << 1)  /* top pointer done */
59 #define DMOV_RSLT_USER        (1 << 0)  /* command with FR force result */
60 
61 #define DMOV_FLUSH0(ch)       DMOV_SD3(0x080, ch)
62 #define DMOV_FLUSH1(ch)       DMOV_SD3(0x0C0, ch)
63 #define DMOV_FLUSH2(ch)       DMOV_SD3(0x100, ch)
64 #define DMOV_FLUSH3(ch)       DMOV_SD3(0x140, ch)
65 #define DMOV_FLUSH4(ch)       DMOV_SD3(0x180, ch)
66 #define DMOV_FLUSH5(ch)       DMOV_SD3(0x1C0, ch)
67 
68 #define DMOV_STATUS(ch)       DMOV_SD3(0x200, ch)
69 #define DMOV_STATUS_RSLT_COUNT(n)    (((n) >> 29))
70 #define DMOV_STATUS_CMD_COUNT(n)     (((n) >> 27) & 3)
71 #define DMOV_STATUS_RSLT_VALID       (1 << 1)
72 #define DMOV_STATUS_CMD_PTR_RDY      (1 << 0)
73 
74 #define DMOV_ISR              DMOV_SD3(0x380, 0)
75 
76 #define DMOV_CONFIG(ch)       DMOV_SD3(0x300, ch)
77 #define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2)
78 #define DMOV_CONFIG_FOREC_FLUSH_RSLT   (1 << 1)
79 #define DMOV_CONFIG_IRQ_EN             (1 << 0)
80 
81 /* channel assignments - from qc/dmov_7500.h */
82 
83 #define DMOV_NAND_CHAN        7
84 #define DMOV_NAND_CRCI_CMD    5
85 #define DMOV_NAND_CRCI_DATA   4
86 
87 #define DMOV_SDC1_CHAN        8
88 #define DMOV_SDC1_CRCI        6
89 
90 #define DMOV_SDC2_CHAN        8
91 #define DMOV_SDC2_CRCI        7
92 
93 #define DMOV_TSIF_CHAN        10
94 #define DMOV_TSIF_CRCI        10
95 
96 #define DMOV_USB_CHAN         11
97 
98 /* no client rate control ifc (eg, ram) */
99 #define DMOV_NONE_CRCI        0
100 
101 
102 /* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover
103 ** is going to walk a list of 32bit pointers as described below.  Each
104 ** pointer points to a *array* of dmov_s, etc structs.  The last pointer
105 ** in the list is marked with CMD_PTR_LP.  The last struct in each array
106 ** is marked with CMD_LC (see below).
107 */
108 #define CMD_PTR_ADDR(addr)  ((addr) >> 3)
109 #define CMD_PTR_LP          (1 << 31) /* last pointer */
110 #define CMD_PTR_PT          (3 << 29) /* ? */
111 
112 
113 /* Single Item Mode -- seems to work as expected */
114 typedef struct {
115     unsigned cmd;
116     unsigned src;
117     unsigned dst;
118     unsigned len;
119 } dmov_s;
120 
121 /* Scatter/Gather Mode -- does this work?*/
122 typedef struct {
123     unsigned cmd;
124     unsigned src_dscr;
125     unsigned dst_dscr;
126     unsigned _reserved;
127 } dmov_sg;
128 
129 /* bits for the cmd field of the above structures */
130 
131 #define CMD_LC      (1 << 31)  /* last command */
132 #define CMD_FR      (1 << 22)  /* force result -- does not work? */
133 #define CMD_OCU     (1 << 21)  /* other channel unblock */
134 #define CMD_OCB     (1 << 20)  /* other channel block */
135 #define CMD_TCB     (1 << 19)  /* ? */
136 #define CMD_DAH     (1 << 18)  /* destination address hold -- does not work?*/
137 #define CMD_SAH     (1 << 17)  /* source address hold -- does not work? */
138 
139 #define CMD_MODE_SINGLE     (0 << 0) /* dmov_s structure used */
140 #define CMD_MODE_SG         (1 << 0) /* untested */
141 #define CMD_MODE_IND_SG     (2 << 0) /* untested */
142 #define CMD_MODE_BOX        (3 << 0) /* untested */
143 
144 #define CMD_DST_SWAP_BYTES  (1 << 14) /* exchange each byte n with byte n+1 */
145 #define CMD_DST_SWAP_SHORTS (1 << 15) /* exchange each short n with short n+1 */
146 #define CMD_DST_SWAP_WORDS  (1 << 16) /* exchange each word n with word n+1 */
147 
148 #define CMD_SRC_SWAP_BYTES  (1 << 11) /* exchange each byte n with byte n+1 */
149 #define CMD_SRC_SWAP_SHORTS (1 << 12) /* exchange each short n with short n+1 */
150 #define CMD_SRC_SWAP_WORDS  (1 << 13) /* exchange each word n with word n+1 */
151 
152 #define CMD_DST_CRCI(n)     (((n) & 15) << 7)
153 #define CMD_SRC_CRCI(n)     (((n) & 15) << 3)
154 
155 
156 /* NOTES:
157 **
158 ** Looks like Channels 4, 5, 6, 7, 8, 10, 11 are available to the ARM11
159 **
160 */
161 #endif
162