ddr.h

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/*
 *  Definitions for the DDR registers
 *
 *  Copyright 2002 Ryan Holm <[email protected]>
 *  Copyright 2008 Florian Fainelli <[email protected]>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef _ASM_RC32434_DDR_H_
#define _ASM_RC32434_DDR_H_

#include <asm/mach-rc32434/rb.h>

/* DDR register structure */
struct ddr_ram {
    u32 ddrbase;
    u32 ddrmask;
    u32 res1;
    u32 res2;
    u32 ddrc;
    u32 ddrabase;
    u32 ddramask;
    u32 ddramap;
    u32 ddrcust;
    u32 ddrrdc;
    u32 ddrspare;
};

#define DDR0_PHYS_ADDR      0x18018000

/* DDR banks masks */
#define DDR_MASK        0xffff0000
#define DDR0_BASE_MSK       DDR_MASK
#define DDR1_BASE_MSK       DDR_MASK

/* DDR bank0 registers */
#define RC32434_DDR0_ATA_BIT        5
#define RC32434_DDR0_ATA_MSK        0x000000E0
#define RC32434_DDR0_DBW_BIT        8
#define RC32434_DDR0_DBW_MSK        0x00000100
#define RC32434_DDR0_WR_BIT     9
#define RC32434_DDR0_WR_MSK     0x00000600
#define RC32434_DDR0_PS_BIT     11
#define RC32434_DDR0_PS_MSK     0x00001800
#define RC32434_DDR0_DTYPE_BIT      13
#define RC32434_DDR0_DTYPE_MSK      0x0000e000
#define RC32434_DDR0_RFC_BIT        16
#define RC32434_DDR0_RFC_MSK        0x000f0000
#define RC32434_DDR0_RP_BIT     20
#define RC32434_DDR0_RP_MSK     0x00300000
#define RC32434_DDR0_AP_BIT     22
#define RC32434_DDR0_AP_MSK     0x00400000
#define RC32434_DDR0_RCD_BIT        23
#define RC32434_DDR0_RCD_MSK        0x01800000
#define RC32434_DDR0_CL_BIT     25
#define RC32434_DDR0_CL_MSK     0x06000000
#define RC32434_DDR0_DBM_BIT        27
#define RC32434_DDR0_DBM_MSK        0x08000000
#define RC32434_DDR0_SDS_BIT        28
#define RC32434_DDR0_SDS_MSK        0x10000000
#define RC32434_DDR0_ATP_BIT        29
#define RC32434_DDR0_ATP_MSK        0x60000000
#define RC32434_DDR0_RE_BIT     31
#define RC32434_DDR0_RE_MSK     0x80000000

/* DDR bank C registers */
#define RC32434_DDRC_MSK(x)     BIT_TO_MASK(x)
#define RC32434_DDRC_CES_BIT        0
#define RC32434_DDRC_ACE_BIT        1

/* Custom DDR bank registers */
#define RC32434_DCST_MSK(x)     BIT_TO_MASK(x)
#define RC32434_DCST_CS_BIT     0
#define RC32434_DCST_CS_MSK     0x00000003
#define RC32434_DCST_WE_BIT     2
#define RC32434_DCST_RAS_BIT        3
#define RC32434_DCST_CAS_BIT        4
#define RC32434_DSCT_CKE_BIT        5
#define RC32434_DSCT_BA_BIT     6
#define RC32434_DSCT_BA_MSK     0x000000c0

/* DDR QSC registers */
#define RC32434_QSC_DM_BIT      0
#define RC32434_QSC_DM_MSK      0x00000003
#define RC32434_QSC_DQSBS_BIT       2
#define RC32434_QSC_DQSBS_MSK       0x000000fc
#define RC32434_QSC_DB_BIT      8
#define RC32434_QSC_DB_MSK      0x00000100
#define RC32434_QSC_DBSP_BIT        9
#define RC32434_QSC_DBSP_MSK        0x01fffe00
#define RC32434_QSC_BDP_BIT     25
#define RC32434_QSC_BDP_MSK     0x7e000000

/* DDR LLC registers */
#define RC32434_LLC_EAO_BIT     0
#define RC32434_LLC_EAO_MSK     0x00000001
#define RC32434_LLC_EO_BIT      1
#define RC32434_LLC_EO_MSK      0x0000003e
#define RC32434_LLC_FS_BIT      6
#define RC32434_LLC_FS_MSK      0x000000c0
#define RC32434_LLC_AS_BIT      8
#define RC32434_LLC_AS_MSK      0x00000700
#define RC32434_LLC_SP_BIT      11
#define RC32434_LLC_SP_MSK      0x001ff800

/* DDR LLFC registers */
#define RC32434_LLFC_MSK(x)     BIT_TO_MASK(x)
#define RC32434_LLFC_MEN_BIT        0
#define RC32434_LLFC_EAN_BIT        1
#define RC32434_LLFC_FF_BIT     2

/* DDR DLLTA registers */
#define RC32434_DLLTA_ADDR_BIT      2
#define RC32434_DLLTA_ADDR_MSK      0xfffffffc

/* DDR DLLED registers */
#define RC32434_DLLED_MSK(x)        BIT_TO_MASK(x)
#define RC32434_DLLED_DBE_BIT       0
#define RC32434_DLLED_DTE_BIT       1

#endif  /* _ASM_RC32434_DDR_H_ */