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99 lines
4.0 KiB
C
99 lines
4.0 KiB
C
/*
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* (C) Copyright 2001
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* Josh Huber, Mission Critical Linux, Inc. <huber@mclx.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* mpc74xx.h
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*
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* MPC74xx specific definitions
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*/
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#ifndef __MPC74XX_H__
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#define __MPC74XX_H__
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/*----------------------------------------------------------------
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* Exception offsets (PowerPC standard)
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*/
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#define EXC_OFF_SYS_RESET 0x0100 /* default system reset offset */
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/*----------------------------------------------------------------
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* l2cr values
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*/
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#define l2cr 1017
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#define L2CR_L2E 0x80000000 /* bit 0 - enable */
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#define L2CR_L2PE 0x40000000 /* bit 1 - data parity */
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#define L2CR_L2SIZ_2M 0x00000000 /* bits 2-3 - 2MB, MPC7400 only! */
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#define L2CR_L2SIZ_1M 0x30000000 /* ... 1MB */
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#define L2CR_L2SIZ_HM 0x20000000 /* ... 512K */
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#define L2CR_L2SIZ_QM 0x10000000 /* ... 256k */
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#define L2CR_L2CLK_1 0x02000000 /* bits 4-6 clock ratio div 1 */
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#define L2CR_L2CLK_1_5 0x04000000 /* bits 4-6 clock ratio div 1.5 */
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#define L2CR_L2CLK_2 0x08000000 /* bits 4-6 clock ratio div 2 */
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#define L2CR_L2CLK_2_5 0x0a000000 /* bits 4-6 clock ratio div 2.5 */
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#define L2CR_L2CLK_3 0x0c000000 /* bits 4-6 clock ratio div 3 */
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#define L2CR_L2CLK_3_5 0x06000000 /* bits 4-6 clock ratio div 3.5 */
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#define L2CR_L2CLK_4 0x0e000000 /* bits 4-6 clock ratio div 4 */
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#define L2CR_L2RAM_BURST 0x01000000 /* bits 7-8 - burst SRAM */
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#define L2CR_DO 0x00400000 /* bit 9 - enable caching of instr. in L2 */
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#define L2CR_L2I 0x00200000 /* bit 10 - global invalidate bit */
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#define L2CR_L2CTL 0x00100000 /* bit 11 - l2 ram control */
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#define L2CR_L2WT 0x00080000 /* bit 12 - l2 write-through */
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#define L2CR_TS 0x00040000 /* bit 13 - test support on */
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#define L2CR_TS_OFF -L2CR_TS /* bit 13 - test support off */
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#define L2CR_L2OH_5 0x00000000 /* bits 14-15 - output hold time = short */
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#define L2CR_L2OH_1 0x00010000 /* bits 14-15 - output hold time = medium */
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#define L2CR_L2OH_INV 0x00020000 /* bits 14-15 - output hold time = long */
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#define L2CR_L2IP 0x00000001 /* global invalidate in progress */
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/*----------------------------------------------------------------
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* BAT settings. Look in config_<BOARD>.h for the actual setup
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*/
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#define BATU_BL_128K 0x00000000
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#define BATU_BL_256K 0x00000004
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#define BATU_BL_512K 0x0000000c
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#define BATU_BL_1M 0x0000001c
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#define BATU_BL_2M 0x0000003c
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#define BATU_BL_4M 0x0000007c
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#define BATU_BL_8M 0x000000fc
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#define BATU_BL_16M 0x000001fc
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#define BATU_BL_32M 0x000003fc
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#define BATU_BL_64M 0x000007fc
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#define BATU_BL_128M 0x00000ffc
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#define BATU_BL_256M 0x00001ffc
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#define BATU_VS 0x00000002
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#define BATU_VP 0x00000001
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#define BATU_INVALID 0x00000000
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#define BATL_WRITETHROUGH 0x00000040 /* W */
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#define BATL_CACHEINHIBIT 0x00000020 /* I */
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#define BATL_COHERENT 0x00000010 /* M */
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#define BATL_GUARDED 0x00000008 /* G */
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#define BATL_NO_ACCESS 0x00000000
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#define BATL_RO 0x00000001
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#define BATL_RW 0x00000002
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#endif /* __MPC74XX_H__ */
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