diff options
author | Uwe Hermann <uwe@hermann-uwe.de> | 2006-11-10 09:04:12 +0000 |
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committer | Uwe Hermann <uwe@hermann-uwe.de> | 2006-11-10 09:04:12 +0000 |
commit | c0defea8b60855302df680696b54f2112c2f649f (patch) | |
tree | a6bb0c08d5e43a6887d2461d9319bd1d92053e0c /src/northbridge/intel | |
parent | f7980d8941ac80ce3aba5f42c5c1371c2c53e370 (diff) |
Add an include file which contains the register definitions for the
Intel 440BX northbridge (Closes #39).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Richard Smith <smithbone@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2495 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/intel')
-rw-r--r-- | src/northbridge/intel/i440bx/i440bx.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/northbridge/intel/i440bx/i440bx.h b/src/northbridge/intel/i440bx/i440bx.h new file mode 100644 index 0000000000..049dceb7bb --- /dev/null +++ b/src/northbridge/intel/i440bx/i440bx.h @@ -0,0 +1,81 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * Datasheet: + * - Name: Intel 440BX AGPset: 82443BX Host Bridge/Controller + * - URL: http://www.intel.com/design/chipsets/datashts/290633.htm + * - PDF: http://www.intel.com/design/chipsets/datashts/29063301.pdf + * - Order Number: 290633-001 + */ + +/* + * Host-to-PCI Bridge Registers. + * The values in parenthesis are the default values as per datasheet. + * Any addresses between 0x00 and 0xff not listed below are either + * Reserved or Intel Reserved and should not be touched. + */ +#define VID 0x00 /* Vendor Identification (0x8086). */ +#define DID 0x02 /* Device Identification (0x7190/0x7192). */ +#define PCICMD 0x04 /* PCI Command Register (0x006). */ +#define PCISTS 0x06 /* PCI Status Register (0x0210/0x0200). */ +#define RID 0x08 /* Revision Identification (0x00/0x01/0x02). */ +#define SUBC 0x0a /* Sub-Class Code (0x00). */ +#define BCC 0x0b /* Base Class Code (0x06). */ +#define MLT 0x0d /* Master Latency Timer (0x00). */ +#define HDR 0x0e /* Header Type (0x00). */ +#define APBASE 0x10 /* Aperture Base Configuration (0x00000008). */ +#define SVID 0x2c /* Subsystem Vendor Identification (0x0000). */ +#define SID 0x2e /* Subsystem Identification (0x0000). */ +#define CAPPTR 0x34 /* Capabilities Pointer (0xa0/0x00. */ +#define NBXCFG 0x50 /* 440BX Configuration (0x0000:00S0_0000_000S_0S00b). */ +#define DRAMC 0x57 /* DRAM Control (00S0_0000b). */ +#define DRAMT 0x58 /* DRAM Timing (0x03). */ +#define PAM 0x59 /* Programmable Attribute Map, 7 registers (0x00). */ +#define DRB 0x60 /* DRAM Row Boundary, 8 registers (0x01). */ +#define FDHC 0x68 /* Fixed SDRAM Hole Control (0x00). */ +#define MBSC 0x69 /* Memory Buffer Strength Control (0x0000-0000-0000). */ +#define SMRAM 0x72 /* System Management RAM Control (0x02). */ +#define ESMRAMC 0x73 /* Extended System Management RAM Control (0x38). */ +#define RPS 0x74 /* SDRAM Row Page Size (0x0000). */ +#define SDRAMC 0x76 /* SDRAM Control Register (0x0000). */ +#define PGPOL 0x78 /* Paging Policy Register (0x00). */ +#define PMCR 0x7a /* Power Management Control Register (0000_S0S0b). */ +#define SCRR 0x7b /* Suspend CBR Refresh Rate Register (0x0038). */ +#define EAP 0x80 /* Error Address Pointer Register (0x00000000). */ +#define ERRCMD 0x90 /* Error Command Register (0x80). */ +#define ERRSTS 0x91 /* Error Status (0x0000). */ +// TODO: AGP stuff. +#define MBFS 0xca /* Memory Buffer Frequency Select (0x000000). */ +#define BSPAD 0xd0 /* BIOS Scratch Pad (0x000..000). */ +#define DWTC 0xe0 /* DRAM Write Thermal Throttling Control (0x000..000). */ +#define DRTC 0xe8 /* DRAM Read Thermal Throttling Control (0x000..000). */ +#define BUFFC 0xf0 /* Buffer Control Register (0x0000). */ + +/* For convenience: */ +#define DRB0 0x60 +#define DRB1 0x61 +#define DRB2 0x62 +#define DRB3 0x63 +#define DRB4 0x64 +#define DRB5 0x65 +#define DRB6 0x66 +#define DRB7 0x67 + |