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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