LXR linux/include/linux/amba/pl080.h

   1/* include/linux/amba/pl080.h
   2 *
   3 * Copyright 2008 Openmoko, Inc.
   4 * Copyright 2008 Simtec Electronics
   5 *      http://armlinux.simtec.co.uk/
   6 *      Ben Dooks <ben@simtec.co.uk>
   7 *
   8 * ARM PrimeCell PL080 DMA controller
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13*/
  14
  15/* Note, there are some Samsung updates to this controller block which
  16 * make it not entierly compatible with the PL080 specification from
  17 * ARM. When in doubt, check the Samsung documentation first.
  18 *
  19 * The Samsung defines are PL080S, and add an extra control register,
  20 * the ability to move more than 2^11 counts of data and some extra
  21 * OneNAND features.
  22*/
  23
  24#ifndef ASM_PL080_H
  25#define ASM_PL080_H
  26
  27#define PL080_INT_STATUS                        (0x00)
  28#define PL080_TC_STATUS                         (0x04)
  29#define PL080_TC_CLEAR                          (0x08)
  30#define PL080_ERR_STATUS                        (0x0C)
  31#define PL080_ERR_CLEAR                         (0x10)
  32#define PL080_RAW_TC_STATUS                     (0x14)
  33#define PL080_RAW_ERR_STATUS                    (0x18)
  34#define PL080_EN_CHAN                           (0x1c)
  35#define PL080_SOFT_BREQ                         (0x20)
  36#define PL080_SOFT_SREQ                         (0x24)
  37#define PL080_SOFT_LBREQ                        (0x28)
  38#define PL080_SOFT_LSREQ                        (0x2C)
  39
  40#define PL080_CONFIG                            (0x30)
  41#define PL080_CONFIG_M2_BE                      (1 << 2)
  42#define PL080_CONFIG_M1_BE                      (1 << 1)
  43#define PL080_CONFIG_ENABLE                     (1 << 0)
  44
  45#define PL080_SYNC                              (0x34)
  46
  47/* Per channel configuration registers */
  48
  49#define PL080_Cx_STRIDE                         (0x20)
  50#define PL080_Cx_BASE(x)                        ((0x100 + (x * 0x20)))
  51#define PL080_Cx_SRC_ADDR(x)                    ((0x100 + (x * 0x20)))
  52#define PL080_Cx_DST_ADDR(x)                    ((0x104 + (x * 0x20)))
  53#define PL080_Cx_LLI(x)                         ((0x108 + (x * 0x20)))
  54#define PL080_Cx_CONTROL(x)                     ((0x10C + (x * 0x20)))
  55#define PL080_Cx_CONFIG(x)                      ((0x110 + (x * 0x20)))
  56#define PL080S_Cx_CONTROL2(x)                   ((0x110 + (x * 0x20)))
  57#define PL080S_Cx_CONFIG(x)                     ((0x114 + (x * 0x20)))
  58
  59#define PL080_CH_SRC_ADDR                       (0x00)
  60#define PL080_CH_DST_ADDR                       (0x04)
  61#define PL080_CH_LLI                            (0x08)
  62#define PL080_CH_CONTROL                        (0x0C)
  63#define PL080_CH_CONFIG                         (0x10)
  64#define PL080S_CH_CONTROL2                      (0x10)
  65#define PL080S_CH_CONFIG                        (0x14)
  66
  67#define PL080_LLI_ADDR_MASK                     (0x3fffffff << 2)
  68#define PL080_LLI_ADDR_SHIFT                    (2)
  69#define PL080_LLI_LM_AHB2                       (1 << 0)
  70
  71#define PL080_CONTROL_TC_IRQ_EN                 (1 << 31)
  72#define PL080_CONTROL_PROT_MASK                 (0x7 << 28)
  73#define PL080_CONTROL_PROT_SHIFT                (28)
  74#define PL080_CONTROL_PROT_CACHE                (1 << 30)
  75#define PL080_CONTROL_PROT_BUFF                 (1 << 29)
  76#define PL080_CONTROL_PROT_SYS                  (1 << 28)
  77#define PL080_CONTROL_DST_INCR                  (1 << 27)
  78#define PL080_CONTROL_SRC_INCR                  (1 << 26)
  79#define PL080_CONTROL_DST_AHB2                  (1 << 25)
  80#define PL080_CONTROL_SRC_AHB2                  (1 << 24)
  81#define PL080_CONTROL_DWIDTH_MASK               (0x7 << 21)
  82#define PL080_CONTROL_DWIDTH_SHIFT              (21)
  83#define PL080_CONTROL_SWIDTH_MASK               (0x7 << 18)
  84#define PL080_CONTROL_SWIDTH_SHIFT              (18)
  85#define PL080_CONTROL_DB_SIZE_MASK              (0x7 << 15)
  86#define PL080_CONTROL_DB_SIZE_SHIFT             (15)
  87#define PL080_CONTROL_SB_SIZE_MASK              (0x7 << 12)
  88#define PL080_CONTROL_SB_SIZE_SHIFT             (12)
  89#define PL080_CONTROL_TRANSFER_SIZE_MASK        (0xfff << 0)
  90#define PL080_CONTROL_TRANSFER_SIZE_SHIFT       (0)
  91
  92#define PL080_BSIZE_1                           (0x0)
  93#define PL080_BSIZE_4                           (0x1)
  94#define PL080_BSIZE_8                           (0x2)
  95#define PL080_BSIZE_16                          (0x3)
  96#define PL080_BSIZE_32                          (0x4)
  97#define PL080_BSIZE_64                          (0x5)
  98#define PL080_BSIZE_128                         (0x6)
  99#define PL080_BSIZE_256                         (0x7)
 100
 101#define PL080_WIDTH_8BIT                        (0x0)
 102#define PL080_WIDTH_16BIT                       (0x1)
 103#define PL080_WIDTH_32BIT                       (0x2)
 104
 105#define PL080N_CONFIG_ITPROT                    (1 << 20)
 106#define PL080N_CONFIG_SECPROT                   (1 << 19)
 107#define PL080_CONFIG_HALT                       (1 << 18)
 108#define PL080_CONFIG_ACTIVE                     (1 << 17)  /* RO */
 109#define PL080_CONFIG_LOCK                       (1 << 16)
 110#define PL080_CONFIG_TC_IRQ_MASK                (1 << 15)
 111#define PL080_CONFIG_ERR_IRQ_MASK               (1 << 14)
 112#define PL080_CONFIG_FLOW_CONTROL_MASK          (0x7 << 11)
 113#define PL080_CONFIG_FLOW_CONTROL_SHIFT         (11)
 114#define PL080_CONFIG_DST_SEL_MASK               (0xf << 6)
 115#define PL080_CONFIG_DST_SEL_SHIFT              (6)
 116#define PL080_CONFIG_SRC_SEL_MASK               (0xf << 1)
 117#define PL080_CONFIG_SRC_SEL_SHIFT              (1)
 118#define PL080_CONFIG_ENABLE                     (1 << 0)
 119
 120#define PL080_FLOW_MEM2MEM                      (0x0)
 121#define PL080_FLOW_MEM2PER                      (0x1)
 122#define PL080_FLOW_PER2MEM                      (0x2)
 123#define PL080_FLOW_SRC2DST                      (0x3)
 124#define PL080_FLOW_SRC2DST_DST                  (0x4)
 125#define PL080_FLOW_MEM2PER_PER                  (0x5)
 126#define PL080_FLOW_PER2MEM_PER                  (0x6)
 127#define PL080_FLOW_SRC2DST_SRC                  (0x7)
 128
 129/* DMA linked list chain structure */
 130
 131struct pl080_lli {
 132        u32     src_addr;
 133        u32     dst_addr;
 134        u32     next_lli;
 135        u32     control0;
 136};
 137
 138struct pl080s_lli {
 139        u32     src_addr;
 140        u32     dst_addr;
 141        u32     next_lli;
 142        u32     control0;
 143        u32     control1;
 144};
 145
 146#endif /* ASM_PL080_H */
 147