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Diffstat (limited to 'include/asm-m68k/coldfire/flexbus.h')
| -rw-r--r-- | include/asm-m68k/coldfire/flexbus.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/asm-m68k/coldfire/flexbus.h b/include/asm-m68k/coldfire/flexbus.h new file mode 100644 index 0000000..1d902c0 --- /dev/null +++ b/include/asm-m68k/coldfire/flexbus.h @@ -0,0 +1,98 @@ +/* + * FlexBus Internal Memory Map + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __FLEXBUS_H +#define __FLEXBUS_H + +/********************************************************************* +* FlexBus Chip Selects (FBCS) +*********************************************************************/ + +typedef struct fbcs { + u32 csar0; /* Chip-select Address Register */ + u32 csmr0; /* Chip-select Mask Register */ + u32 cscr0; /* Chip-select Control Register */ + u32 csar1; /* Chip-select Address Register */ + u32 csmr1; /* Chip-select Mask Register */ + u32 cscr1; /* Chip-select Control Register */ + u32 csar2; /* Chip-select Address Register */ + u32 csmr2; /* Chip-select Mask Register */ + u32 cscr2; /* Chip-select Control Register */ + u32 csar3; /* Chip-select Address Register */ + u32 csmr3; /* Chip-select Mask Register */ + u32 cscr3; /* Chip-select Control Register */ + u32 csar4; /* Chip-select Address Register */ + u32 csmr4; /* Chip-select Mask Register */ + u32 cscr4; /* Chip-select Control Register */ + u32 csar5; /* Chip-select Address Register */ + u32 csmr5; /* Chip-select Mask Register */ + u32 cscr5; /* Chip-select Control Register */ +} fbcs_t; + +/* Bit definitions and macros for CSAR group */ +#define FBCS_CSAR_BA(x) ((x)&0xFFFF0000) + +/* Bit definitions and macros for CSMR group */ +#define FBCS_CSMR_V (0x00000001) /* Valid bit */ +#define FBCS_CSMR_WP (0x00000100) /* Write protect */ +#define FBCS_CSMR_BAM(x) (((x)&0x0000FFFF)<<16) /* Base address mask */ +#define FBCS_CSMR_BAM_4G (0xFFFF0000) +#define FBCS_CSMR_BAM_2G (0x7FFF0000) +#define FBCS_CSMR_BAM_1G (0x3FFF0000) +#define FBCS_CSMR_BAM_1024M (0x3FFF0000) +#define FBCS_CSMR_BAM_512M (0x1FFF0000) +#define FBCS_CSMR_BAM_256M (0x0FFF0000) +#define FBCS_CSMR_BAM_128M (0x07FF0000) +#define FBCS_CSMR_BAM_64M (0x03FF0000) +#define FBCS_CSMR_BAM_32M (0x01FF0000) +#define FBCS_CSMR_BAM_16M (0x00FF0000) +#define FBCS_CSMR_BAM_8M (0x007F0000) +#define FBCS_CSMR_BAM_4M (0x003F0000) +#define FBCS_CSMR_BAM_2M (0x001F0000) +#define FBCS_CSMR_BAM_1M (0x000F0000) +#define FBCS_CSMR_BAM_1024K (0x000F0000) +#define FBCS_CSMR_BAM_512K (0x00070000) +#define FBCS_CSMR_BAM_256K (0x00030000) +#define FBCS_CSMR_BAM_128K (0x00010000) +#define FBCS_CSMR_BAM_64K (0x00000000) + +/* Bit definitions and macros for CSCR group */ +#define FBCS_CSCR_BSTW (0x00000008) /* Burst-write enable */ +#define FBCS_CSCR_BSTR (0x00000010) /* Burst-read enable */ +#define FBCS_CSCR_BEM (0x00000020) /* Byte-enable mode */ +#define FBCS_CSCR_PS(x) (((x)&0x00000003)<<6) /* Port size */ +#define FBCS_CSCR_AA (0x00000100) /* Auto-acknowledge */ +#define FBCS_CSCR_WS(x) (((x)&0x0000003F)<<10) /* Wait states */ +#define FBCS_CSCR_WRAH(x) (((x)&0x00000003)<<16) /* Write address hold or deselect */ +#define FBCS_CSCR_RDAH(x) (((x)&0x00000003)<<18) /* Read address hold or deselect */ +#define FBCS_CSCR_ASET(x) (((x)&0x00000003)<<20) /* Address setup */ +#define FBCS_CSCR_SWSEN (0x00800000) /* Secondary wait state enable */ +#define FBCS_CSCR_SWS(x) (((x)&0x0000003F)<<26) /* Secondary wait states */ + +#define FBCS_CSCR_PS_8 (0x00000040) +#define FBCS_CSCR_PS_16 (0x00000080) +#define FBCS_CSCR_PS_32 (0x00000000) + +#endif /* __FLEXBUS_H */ |