1/* 2 * arch/arm/mach-ks8695/include/mach/regs-mem.h 3 * 4 * Copyright (C) 2006 Andrew Victor 5 * 6 * KS8695 - Memory Controller registers and bit definitions 7 * 8 * This file is licensed under the terms of the GNU General Public 9 * License version 2. This program is licensed "as is" without any 10 * warranty of any kind, whether express or implied. 11 */ 12 13#ifndef KS8695_MEM_H 14#define KS8695_MEM_H 15 16#define KS8695_MEM_OFFSET (0xF0000 + 0x4000) 17#define KS8695_MEM_VA (KS8695_IO_VA + KS8695_MEM_OFFSET) 18#define KS8695_MEM_PA (KS8695_IO_PA + KS8695_MEM_OFFSET) 19 20 21/* 22 * Memory Controller Registers 23 */ 24#define KS8695_EXTACON0 (0x00) /* External I/O 0 Access Control */ 25#define KS8695_EXTACON1 (0x04) /* External I/O 1 Access Control */ 26#define KS8695_EXTACON2 (0x08) /* External I/O 2 Access Control */ 27#define KS8695_ROMCON0 (0x10) /* ROM/SRAM/Flash 1 Control Register */ 28#define KS8695_ROMCON1 (0x14) /* ROM/SRAM/Flash 2 Control Register */ 29#define KS8695_ERGCON (0x20) /* External I/O and ROM/SRAM/Flash General Register */ 30#define KS8695_SDCON0 (0x30) /* SDRAM Control Register 0 */ 31#define KS8695_SDCON1 (0x34) /* SDRAM Control Register 1 */ 32#define KS8695_SDGCON (0x38) /* SDRAM General Control */ 33#define KS8695_SDBCON (0x3c) /* SDRAM Buffer Control */ 34#define KS8695_REFTIM (0x40) /* SDRAM Refresh Timer */ 35 36 37/* External I/O Access Control Registers */ 38#define EXTACON_EBNPTR (0x3ff << 22) /* Last Address Pointer */ 39#define EXTACON_EBBPTR (0x3ff << 12) /* Base Pointer */ 40#define EXTACON_EBTACT (7 << 9) /* Write Enable/Output Enable Active Time */ 41#define EXTACON_EBTCOH (7 << 6) /* Chip Select Hold Time */ 42#define EXTACON_EBTACS (7 << 3) /* Address Setup Time before ECSN */ 43#define EXTACON_EBTCOS (7 << 0) /* Chip Select Time before OEN */ 44 45/* ROM/SRAM/Flash Control Register */ 46#define ROMCON_RBNPTR (0x3ff << 22) /* Next Pointer */ 47#define ROMCON_RBBPTR (0x3ff << 12) /* Base Pointer */ 48#define ROMCON_RBTACC (7 << 4) /* Access Cycle Time */ 49#define ROMCON_RBTPA (3 << 2) /* Page Address Access Time */ 50#define ROMCON_PMC (3 << 0) /* Page Mode Configuration */ 51#define PMC_NORMAL (0 << 0) 52#define PMC_4WORD (1 << 0) 53#define PMC_8WORD (2 << 0) 54#define PMC_16WORD (3 << 0) 55 56/* External I/O and ROM/SRAM/Flash General Register */ 57#define ERGCON_TMULT (3 << 28) /* Time Multiplier */ 58#define ERGCON_DSX2 (3 << 20) /* Data Width (External I/O Bank 2) */ 59#define ERGCON_DSX1 (3 << 18) /* Data Width (External I/O Bank 1) */ 60#define ERGCON_DSX0 (3 << 16) /* Data Width (External I/O Bank 0) */ 61#define ERGCON_DSR1 (3 << 2) /* Data Width (ROM/SRAM/Flash Bank 1) */ 62#define ERGCON_DSR0 (3 << 0) /* Data Width (ROM/SRAM/Flash Bank 0) */ 63 64/* SDRAM Control Register */ 65#define SDCON_DBNPTR (0x3ff << 22) /* Last Address Pointer */ 66#define SDCON_DBBPTR (0x3ff << 12) /* Base Pointer */ 67#define SDCON_DBCAB (3 << 8) /* Column Address Bits */ 68#define SDCON_DBBNUM (1 << 3) /* Number of Banks */ 69#define SDCON_DBDBW (3 << 1) /* Data Bus Width */ 70 71/* SDRAM General Control Register */ 72#define SDGCON_SDTRC (3 << 2) /* RAS to CAS latency */ 73#define SDGCON_SDCAS (3 << 0) /* CAS latency */ 74 75/* SDRAM Buffer Control Register */ 76#define SDBCON_SDESTA (1 << 31) /* SDRAM Engine Status */ 77#define SDBCON_RBUFBDIS (1 << 24) /* Read Buffer Burst Enable */ 78#define SDBCON_WFIFOEN (1 << 23) /* Write FIFO Enable */ 79#define SDBCON_RBUFEN (1 << 22) /* Read Buffer Enable */ 80#define SDBCON_FLUSHWFIFO (1 << 21) /* Flush Write FIFO */ 81#define SDBCON_RBUFINV (1 << 20) /* Read Buffer Invalidate */ 82#define SDBCON_SDINI (3 << 16) /* SDRAM Initialization Control */ 83#define SDBCON_SDMODE (0x3fff << 0) /* SDRAM Mode Register Value Program */ 84 85/* SDRAM Refresh Timer Register */ 86#define REFTIM_REFTIM (0xffff << 0) /* Refresh Timer Value */ 87 88 89#endif 90