root/arch/mips/include/asm/mach-rc32434/ddr.h

INCLUDED FROM

   1 /*
   2  *  Definitions for the DDR registers
   3  *
   4  *  Copyright 2002 Ryan Holm <ryan.holmQVist@idt.com>
   5  *  Copyright 2008 Florian Fainelli <florian@openwrt.org>
   6  *
   7  *  This program is free software; you can redistribute  it and/or modify it
   8  *  under  the terms of  the GNU General  Public License as published by the
   9  *  Free Software Foundation;  either version 2 of the  License, or (at your
  10  *  option) any later version.
  11  *
  12  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  13  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  14  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  15  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  16  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  17  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  18  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  19  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  20  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  21  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  22  *
  23  *  You should have received a copy of the  GNU General Public License along
  24  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  25  *  675 Mass Ave, Cambridge, MA 02139, USA.
  26  *
  27  */
  28 
  29 #ifndef _ASM_RC32434_DDR_H_
  30 #define _ASM_RC32434_DDR_H_
  31 
  32 #include <asm/mach-rc32434/rb.h>
  33 
  34 /* DDR register structure */
  35 struct ddr_ram {
  36         u32 ddrbase;
  37         u32 ddrmask;
  38         u32 res1;
  39         u32 res2;
  40         u32 ddrc;
  41         u32 ddrabase;
  42         u32 ddramask;
  43         u32 ddramap;
  44         u32 ddrcust;
  45         u32 ddrrdc;
  46         u32 ddrspare;
  47 };
  48 
  49 #define DDR0_PHYS_ADDR          0x18018000
  50 
  51 /* DDR banks masks */
  52 #define DDR_MASK                0xffff0000
  53 #define DDR0_BASE_MSK           DDR_MASK
  54 #define DDR1_BASE_MSK           DDR_MASK
  55 
  56 /* DDR bank0 registers */
  57 #define RC32434_DDR0_ATA_BIT            5
  58 #define RC32434_DDR0_ATA_MSK            0x000000E0
  59 #define RC32434_DDR0_DBW_BIT            8
  60 #define RC32434_DDR0_DBW_MSK            0x00000100
  61 #define RC32434_DDR0_WR_BIT             9
  62 #define RC32434_DDR0_WR_MSK             0x00000600
  63 #define RC32434_DDR0_PS_BIT             11
  64 #define RC32434_DDR0_PS_MSK             0x00001800
  65 #define RC32434_DDR0_DTYPE_BIT          13
  66 #define RC32434_DDR0_DTYPE_MSK          0x0000e000
  67 #define RC32434_DDR0_RFC_BIT            16
  68 #define RC32434_DDR0_RFC_MSK            0x000f0000
  69 #define RC32434_DDR0_RP_BIT             20
  70 #define RC32434_DDR0_RP_MSK             0x00300000
  71 #define RC32434_DDR0_AP_BIT             22
  72 #define RC32434_DDR0_AP_MSK             0x00400000
  73 #define RC32434_DDR0_RCD_BIT            23
  74 #define RC32434_DDR0_RCD_MSK            0x01800000
  75 #define RC32434_DDR0_CL_BIT             25
  76 #define RC32434_DDR0_CL_MSK             0x06000000
  77 #define RC32434_DDR0_DBM_BIT            27
  78 #define RC32434_DDR0_DBM_MSK            0x08000000
  79 #define RC32434_DDR0_SDS_BIT            28
  80 #define RC32434_DDR0_SDS_MSK            0x10000000
  81 #define RC32434_DDR0_ATP_BIT            29
  82 #define RC32434_DDR0_ATP_MSK            0x60000000
  83 #define RC32434_DDR0_RE_BIT             31
  84 #define RC32434_DDR0_RE_MSK             0x80000000
  85 
  86 /* DDR bank C registers */
  87 #define RC32434_DDRC_MSK(x)             BIT_TO_MASK(x)
  88 #define RC32434_DDRC_CES_BIT            0
  89 #define RC32434_DDRC_ACE_BIT            1
  90 
  91 /* Custom DDR bank registers */
  92 #define RC32434_DCST_MSK(x)             BIT_TO_MASK(x)
  93 #define RC32434_DCST_CS_BIT             0
  94 #define RC32434_DCST_CS_MSK             0x00000003
  95 #define RC32434_DCST_WE_BIT             2
  96 #define RC32434_DCST_RAS_BIT            3
  97 #define RC32434_DCST_CAS_BIT            4
  98 #define RC32434_DSCT_CKE_BIT            5
  99 #define RC32434_DSCT_BA_BIT             6
 100 #define RC32434_DSCT_BA_MSK             0x000000c0
 101 
 102 /* DDR QSC registers */
 103 #define RC32434_QSC_DM_BIT              0
 104 #define RC32434_QSC_DM_MSK              0x00000003
 105 #define RC32434_QSC_DQSBS_BIT           2
 106 #define RC32434_QSC_DQSBS_MSK           0x000000fc
 107 #define RC32434_QSC_DB_BIT              8
 108 #define RC32434_QSC_DB_MSK              0x00000100
 109 #define RC32434_QSC_DBSP_BIT            9
 110 #define RC32434_QSC_DBSP_MSK            0x01fffe00
 111 #define RC32434_QSC_BDP_BIT             25
 112 #define RC32434_QSC_BDP_MSK             0x7e000000
 113 
 114 /* DDR LLC registers */
 115 #define RC32434_LLC_EAO_BIT             0
 116 #define RC32434_LLC_EAO_MSK             0x00000001
 117 #define RC32434_LLC_EO_BIT              1
 118 #define RC32434_LLC_EO_MSK              0x0000003e
 119 #define RC32434_LLC_FS_BIT              6
 120 #define RC32434_LLC_FS_MSK              0x000000c0
 121 #define RC32434_LLC_AS_BIT              8
 122 #define RC32434_LLC_AS_MSK              0x00000700
 123 #define RC32434_LLC_SP_BIT              11
 124 #define RC32434_LLC_SP_MSK              0x001ff800
 125 
 126 /* DDR LLFC registers */
 127 #define RC32434_LLFC_MSK(x)             BIT_TO_MASK(x)
 128 #define RC32434_LLFC_MEN_BIT            0
 129 #define RC32434_LLFC_EAN_BIT            1
 130 #define RC32434_LLFC_FF_BIT             2
 131 
 132 /* DDR DLLTA registers */
 133 #define RC32434_DLLTA_ADDR_BIT          2
 134 #define RC32434_DLLTA_ADDR_MSK          0xfffffffc
 135 
 136 /* DDR DLLED registers */
 137 #define RC32434_DLLED_MSK(x)            BIT_TO_MASK(x)
 138 #define RC32434_DLLED_DBE_BIT           0
 139 #define RC32434_DLLED_DTE_BIT           1
 140 
 141 #endif  /* _ASM_RC32434_DDR_H_ */