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/*
* include/asm-armnommu/arch-netarm/netarm_mem_module.h
*
* Copyright (C) 2005
* Art Shipkowski, Videon Central, Inc., <art@videon-central.com>
*
* Copyright (C) 2000, 2001 NETsilicon, Inc.
* Copyright (C) 2000, 2001 Red Hat, Inc.
*
* This software is copyrighted by Red Hat. LICENSEE agrees that
* it will not delete this copyright notice, trademarks or protective
* notices from any copy made by LICENSEE.
*
* This software is provided "AS-IS" and any express or implied
* warranties or conditions, including but not limited to any
* implied warranties of merchantability and fitness for a particular
* purpose regarding this software. In no event shall Red Hat
* be liable for any indirect, consequential, or incidental damages,
* loss of profits or revenue, loss of use or data, or interruption
* of business, whether the alleged damages are labeled in contract,
* tort, or indemnity.
*
* 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.
*
* 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.
*
* author(s) : Joe deBlaquiere
*
* Modified to support NS7520 by Art Shipkowski.
*/
#ifndef __NETARM_MEM_MODULE_REGISTERS_H
#define __NETARM_MEM_MODULE_REGISTERS_H
/* GEN unit register offsets */
#define NETARM_MEM_MODULE_BASE (0xFFC00000)
#define NETARM_MEM_MODULE_CONFIG (0x00)
#define NETARM_MEM_CS0_BASE_ADDR (0x10)
#define NETARM_MEM_CS0_OPTIONS (0x14)
#define NETARM_MEM_CS1_BASE_ADDR (0x20)
#define NETARM_MEM_CS1_OPTIONS (0x24)
#define NETARM_MEM_CS2_BASE_ADDR (0x30)
#define NETARM_MEM_CS2_OPTIONS (0x34)
#define NETARM_MEM_CS3_BASE_ADDR (0x40)
#define NETARM_MEM_CS3_OPTIONS (0x44)
#define NETARM_MEM_CS4_BASE_ADDR (0x50)
#define NETARM_MEM_CS4_OPTIONS (0x54)
/* select bitfield defintions */
/* Module Configuration Register ( 0xFFC0_0000 ) */
#define NETARM_MEM_CFG_REFR_COUNT_MASK (0xFF000000)
#define NETARM_MEM_CFG_REFRESH_EN (0x00800000)
#define NETARM_MEM_CFG_REFR_CYCLE_8CLKS (0x00000000)
#define NETARM_MEM_CFG_REFR_CYCLE_6CLKS (0x00200000)
#define NETARM_MEM_CFG_REFR_CYCLE_5CLKS (0x00400000)
#define NETARM_MEM_CFG_REFR_CYCLE_4CLKS (0x00600000)
#define NETARM_MEM_CFG_PORTC_AMUX (0x00100000)
#define NETARM_MEM_CFG_A27_ADDR (0x00080000)
#define NETARM_MEM_CFG_A27_CS0OE (0x00000000)
#define NETARM_MEM_CFG_A26_ADDR (0x00040000)
#define NETARM_MEM_CFG_A26_CS0WE (0x00000000)
#define NETARM_MEM_CFG_A25_ADDR (0x00020000)
#define NETARM_MEM_CFG_A25_BLAST (0x00000000)
#define NETARM_MEM_CFG_PORTC_AMUX2 (0x00010000)
/* range on this period is about 1 to 275 usec (with 18.432MHz clock) */
/* the expression will round down, so make sure to reverse it to verify */
/* it is what you want. period = [( count + 1 ) * 20] / Fcrystal */
/* (note: Fxtal = Fcrystal/5, see HWRefGuide sections 8.2.5 and 11.3.2) */
#define NETARM_MEM_REFR_PERIOD_USEC(p) (NETARM_MEM_CFG_REFR_COUNT_MASK & \
(((((NETARM_XTAL_FREQ/(1000))*p)/(20000) \
) - (1) ) << (24)))
#if 0
/* range on this period is about 1 to 275 usec (with 18.432MHz clock) */
/* the expression will round down, so make sure to reverse it toverify */
/* it is what you want. period = [( count + 1 ) * 4] / Fxtal */
#define NETARM_MEM_REFR_PERIOD_USEC(p) (NETARM_MEM_CFG_REFR_COUNT_MASK & \
(((((NETARM_XTAL_FREQ/(1000))*p)/(4000) \
) - (1) ) << (24)))
#endif
/* Base Address Registers (0xFFC0_00X0) */
#define NETARM_MEM_BAR_BASE_MASK (0xFFFFF000)
/* macro to define base */
#define NETARM_MEM_BAR_BASE(x) ((x) & NETARM_MEM_BAR_BASE_MASK)
#define NETARM_MEM_BAR_DRAM_FP (0x00000000)
#define NETARM_MEM_BAR_DRAM_EDO (0x00000100)
#define NETARM_MEM_BAR_DRAM_SYNC (0x00000200)
#define NETARM_MEM_BAR_DRAM_MUX_INT (0x00000000)
#define NETARM_MEM_BAR_DRAM_MUX_EXT (0x00000080)
#define NETARM_MEM_BAR_DRAM_MUX_BAL (0x00000000)
#define NETARM_MEM_BAR_DRAM_MUX_UNBAL (0x00000020)
#define NETARM_MEM_BAR_1BCLK_IDLE (0x00000010)
#define NETARM_MEM_BAR_DRAM_SEL (0x00000008)
#define NETARM_MEM_BAR_BURST_EN (0x00000004)
#define NETARM_MEM_BAR_WRT_PROT (0x00000002)
#define NETARM_MEM_BAR_VALID (0x00000001)
/* Option Registers (0xFFC0_00X4) */
/* macro to define which bits of the base are significant */
#define NETARM_MEM_OPT_BASE_USE(x) ((x) & NETARM_MEM_BAR_BASE_MASK)
#define NETARM_MEM_OPT_WAIT_MASK (0x00000F00)
#define NETARM_MEM_OPT_WAIT_STATES(x) (((x) << 8 ) & NETARM_MEM_OPT_WAIT_MASK )
#define NETARM_MEM_OPT_BCYC_1 (0x00000000)
#define NETARM_MEM_OPT_BCYC_2 (0x00000040)
#define NETARM_MEM_OPT_BCYC_3 (0x00000080)
#define NETARM_MEM_OPT_BCYC_4 (0x000000C0)
#define NETARM_MEM_OPT_BSIZE_2 (0x00000000)
#define NETARM_MEM_OPT_BSIZE_4 (0x00000010)
#define NETARM_MEM_OPT_BSIZE_8 (0x00000020)
#define NETARM_MEM_OPT_BSIZE_16 (0x00000030)
#define NETARM_MEM_OPT_32BIT (0x00000000)
#define NETARM_MEM_OPT_16BIT (0x00000004)
#define NETARM_MEM_OPT_8BIT (0x00000008)
#define NETARM_MEM_OPT_32BIT_EXT_ACK (0x0000000C)
#define NETARM_MEM_OPT_BUS_SIZE_MASK (0x0000000C)
#define NETARM_MEM_OPT_READ_ASYNC (0x00000000)
#define NETARM_MEM_OPT_READ_SYNC (0x00000002)
#define NETARM_MEM_OPT_WRITE_ASYNC (0x00000000)
#define NETARM_MEM_OPT_WRITE_SYNC (0x00000001)
#ifdef CONFIG_NETARM_NS7520
/* The NS7520 has a second options register for each chip select */
#define NETARM_MEM_CS0_OPTIONS_B (0x18)
#define NETARM_MEM_CS1_OPTIONS_B (0x28)
#define NETARM_MEM_CS2_OPTIONS_B (0x38)
#define NETARM_MEM_CS3_OPTIONS_B (0x48)
#define NETARM_MEM_CS4_OPTIONS_B (0x58)
/* Option B Registers (0xFFC0_00x8) */
#define NETARM_MEM_OPTB_SYNC_1_STAGE (0x00000001)
#define NETARM_MEM_OPTB_SYNC_2_STAGE (0x00000002)
#define NETARM_MEM_OPTB_BCYC_PLUS0 (0x00000000)
#define NETARM_MEM_OPTB_BCYC_PLUS4 (0x00000004)
#define NETARM_MEM_OPTB_BCYC_PLUS8 (0x00000008)
#define NETARM_MEM_OPTB_BCYC_PLUS12 (0x0000000C)
#define NETARM_MEM_OPTB_WAIT_PLUS0 (0x00000000)
#define NETARM_MEM_OPTB_WAIT_PLUS16 (0x00000010)
#define NETARM_MEM_OPTB_WAIT_PLUS32 (0x00000020)
#define NETARM_MEM_OPTB_WAIT_PLUS48 (0x00000030)
#endif
#endif
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