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/*
* $Id$
*
* ADM5120 MPMC (Multiport Memory Controller) register definitions
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
*/
#ifndef _ADM5120_MPMC_H_
#define _ADM5120_MPMC_H_
#define MPMC_READ_REG(r) __raw_readl( \
(void __iomem *)KSEG1ADDR(ADM5120_MPMC_BASE) + MPMC_REG_ ## r)
#define MPMC_WRITE_REG(r, v) __raw_writel((v), \
(void __iomem *)KSEG1ADDR(ADM5120_MPMC_BASE) + MPMC_REG_ ## r)
#define MPMC_REG_CTRL 0x0000
#define MPMC_REG_STATUS 0x0004
#define MPMC_REG_CONF 0x0008
#define MPMC_REG_DC 0x0020
#define MPMC_REG_DR 0x0024
#define MPMC_REG_DRP 0x0030
#define MPMC_REG_DC0 0x0100
#define MPMC_REG_DRC0 0x0104
#define MPMC_REG_DC1 0x0120
#define MPMC_REG_DRC1 0x0124
#define MPMC_REG_DC2 0x0140
#define MPMC_REG_DRC2 0x0144
#define MPMC_REG_DC3 0x0160
#define MPMC_REG_DRC3 0x0164
#define MPMC_REG_SC0 0x0200 /* for F_CS1_N */
#define MPMC_REG_SC1 0x0220 /* for F_CS0_N */
#define MPMC_REG_SC2 0x0240
#define MPMC_REG_WEN2 0x0244
#define MPMC_REG_OEN2 0x0248
#define MPMC_REG_RD2 0x024C
#define MPMC_REG_PG2 0x0250
#define MPMC_REG_WR2 0x0254
#define MPMC_REG_TN2 0x0258
#define MPMC_REG_SC3 0x0260
/* Control register bits */
#define MPMC_CTRL_AM ( 1 << 1 ) /* Address Mirror */
#define MPMC_CTRL_LPM ( 1 << 2 ) /* Low Power Mode */
#define MPMC_CTRL_DWB ( 1 << 3 ) /* Drain Write Buffers */
/* Status register bits */
#define MPMC_STATUS_BUSY ( 1 << 0 ) /* Busy */
#define MPMC_STATUS_WBS ( 1 << 1 ) /* Write Buffer Status */
#define MPMC_STATUS_SRA ( 1 << 2 ) /* Self-Refresh Acknowledge*/
/* Dynamic Control register bits */
#define MPMC_DC_CE ( 1 << 0 )
#define MPMC_DC_DMC ( 1 << 1 )
#define MPMC_DC_SRR ( 1 << 2 )
#define MPMC_DC_SI_SHIFT 7
#define MPMC_DC_SI_MASK ( 3 << 7 )
#define MPMC_DC_SI_NORMAL ( 0 << 7 )
#define MPMC_DC_SI_MODE ( 1 << 7 )
#define MPMC_DC_SI_PALL ( 2 << 7 )
#define MPMC_DC_SI_NOP ( 3 << 7 )
#define SRAM_REG_CONF 0x00
#define SRAM_REG_WWE 0x04
#define SRAM_REG_WOE 0x08
#define SRAM_REG_WRD 0x0C
#define SRAM_REG_WPG 0x10
#define SRAM_REG_WWR 0x14
#define SRAM_REG_WTR 0x18
/* Dynamic Configuration register bits */
#define DC_BE (1 << 19) /* buffer enable */
#define DC_RW_SHIFT 28 /* shift for number of rows */
#define DC_RW_MASK 0x03
#define DC_NB_SHIFT 26 /* shift for number of banks */
#define DC_NB_MASK 0x01
#define DC_CW_SHIFT 22 /* shift for number of columns */
#define DC_CW_MASK 0x07
#define DC_DW_SHIFT 7 /* shift for device width */
#define DC_DW_MASK 0x03
/* Static Configuration register bits */
#define SC_MW_MASK 0x03 /* memory width mask */
#define SC_MW_8 0x00 /* 8 bit memory width */
#define SC_MW_16 0x01 /* 16 bit memory width */
#define SC_MW_32 0x02 /* 32 bit memory width */
#endif /* _ADM5120_MPMC_H_ */
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