78ddb27859
Header to define the standard registers for an PL093 SSMC memory controller. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/* linux/amba/pl093.h
|
|
*
|
|
* Copyright (c) 2008 Simtec Electronics
|
|
* http://armlinux.simtec.co.uk/
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
*
|
|
* AMBA PL093 SSMC (synchronous static memory controller)
|
|
* See DDI0236.pdf (r0p4) for more details
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#define SMB_BANK(x) ((x) * 0x20) /* each bank control set is 0x20 apart */
|
|
|
|
/* Offsets for SMBxxxxRy registers */
|
|
|
|
#define SMBIDCYR (0x00)
|
|
#define SMBWSTRDR (0x04)
|
|
#define SMBWSTWRR (0x08)
|
|
#define SMBWSTOENR (0x0C)
|
|
#define SMBWSTWENR (0x10)
|
|
#define SMBCR (0x14)
|
|
#define SMBSR (0x18)
|
|
#define SMBWSTBRDR (0x1C)
|
|
|
|
/* Masks for SMB registers */
|
|
#define IDCY_MASK (0xf)
|
|
#define WSTRD_MASK (0xf)
|
|
#define WSTWR_MASK (0xf)
|
|
#define WSTOEN_MASK (0xf)
|
|
#define WSTWEN_MASK (0xf)
|
|
|
|
/* Notes from datasheet:
|
|
* WSTOEN <= WSTRD
|
|
* WSTWEN <= WSTWR
|
|
*
|
|
* WSTOEN is not used with nWAIT
|
|
*/
|
|
|
|
/* SMBCR bit definitions */
|
|
#define SMBCR_BIWRITEEN (1 << 21)
|
|
#define SMBCR_ADDRVALIDWRITEEN (1 << 20)
|
|
#define SMBCR_SYNCWRITE (1 << 17)
|
|
#define SMBCR_BMWRITE (1 << 16)
|
|
#define SMBCR_WRAPREAD (1 << 14)
|
|
#define SMBCR_BIREADEN (1 << 13)
|
|
#define SMBCR_ADDRVALIDREADEN (1 << 12)
|
|
#define SMBCR_SYNCREAD (1 << 9)
|
|
#define SMBCR_BMREAD (1 << 8)
|
|
#define SMBCR_SMBLSPOL (1 << 6)
|
|
#define SMBCR_WP (1 << 3)
|
|
#define SMBCR_WAITEN (1 << 2)
|
|
#define SMBCR_WAITPOL (1 << 1)
|
|
#define SMBCR_RBLE (1 << 0)
|
|
|
|
#define SMBCR_BURSTLENWRITE_MASK (3 << 18)
|
|
#define SMBCR_BURSTLENWRITE_4 (0 << 18)
|
|
#define SMBCR_BURSTLENWRITE_8 (1 << 18)
|
|
#define SMBCR_BURSTLENWRITE_RESERVED (2 << 18)
|
|
#define SMBCR_BURSTLENWRITE_CONTINUOUS (3 << 18)
|
|
|
|
#define SMBCR_BURSTLENREAD_MASK (3 << 10)
|
|
#define SMBCR_BURSTLENREAD_4 (0 << 10)
|
|
#define SMBCR_BURSTLENREAD_8 (1 << 10)
|
|
#define SMBCR_BURSTLENREAD_16 (2 << 10)
|
|
#define SMBCR_BURSTLENREAD_CONTINUOUS (3 << 10)
|
|
|
|
#define SMBCR_MW_MASK (3 << 4)
|
|
#define SMBCR_MW_8BIT (0 << 4)
|
|
#define SMBCR_MW_16BIT (1 << 4)
|
|
#define SMBCR_MW_M32BIT (2 << 4)
|
|
|
|
/* SSMC status registers */
|
|
#define SSMCCSR (0x200)
|
|
#define SSMCCR (0x204)
|
|
#define SSMCITCR (0x208)
|
|
#define SSMCITIP (0x20C)
|
|
#define SSMCITIOP (0x210)
|