diff options
Diffstat (limited to 'src/include/sdram_mode.h')
-rw-r--r-- | src/include/sdram_mode.h | 115 |
1 files changed, 53 insertions, 62 deletions
diff --git a/src/include/sdram_mode.h b/src/include/sdram_mode.h index 238ff6b787..29f3154897 100644 --- a/src/include/sdram_mode.h +++ b/src/include/sdram_mode.h @@ -1,62 +1,53 @@ -/*
- * $Header: /home/cvs/BIR/ca-cpu/freebios/src/include/sdram_mode.h,v 1.1 2005/07/11 16:03:54 smagnani Exp $
- *
- * sdram_mode.h: Definitions for SDRAM Mode Register and Extended Mode Register
- *
- *
- * Copyright (C) 2005 Digital Design Corporation
- *
- * 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
- *
- * $Log: sdram_mode.h,v $
- * Revision 1.1 2005/07/11 16:03:54 smagnani
- * Initial revision.
- *
- *
- */
-
-#ifndef __SDRAMMODE_H_DEFINED
-#define __SDRAMMODE_H_DEFINED
-
-// SDRAM Mode Register definitions, per JESD79D
-// These are transmitted via A0-A13
-
-// Burst length
-#define SDRAM_BURST_2 (1<<0)
-#define SDRAM_BURST_4 (2<<0)
-#define SDRAM_BURST_8 (3<<0)
-
-#define SDRAM_BURST_SEQUENTIAL (0<<3)
-#define SDRAM_BURST_INTERLEAVED (1<<3)
-
-#define SDRAM_CAS_2_0 (2<<4)
-#define SDRAM_CAS_3_0 (3<<4) /* Optional for DDR 200-333 */
-#define SDRAM_CAS_1_5 (5<<4) /* Optional */
-#define SDRAM_CAS_2_5 (6<<4)
-#define SDRAM_CAS_MASK (7<<4)
-
-#define SDRAM_MODE_NORMAL (0 << 7)
-#define SDRAM_MODE_TEST (1 << 7)
-#define SDRAM_MODE_DLL_RESET (2 << 7)
-
-// Extended Mode Register
-
-#define SDRAM_EXTMODE_DLL_ENABLE (0 << 0)
-#define SDRAM_EXTMODE_DLL_DISABLE (1 << 0)
-
-#define SDRAM_EXTMODE_DRIVE_NORMAL (0 << 1)
-#define SDRAM_EXTMODE_DRIVE_WEAK (1 << 1) /* Optional */
-
-#endif // __SDRAMMODE_H_DEFINED
+/* + * sdram_mode.h: Definitions for SDRAM Mode Register and Extended Mode Register + * + * Copyright (C) 2005 Digital Design Corporation + * + * 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 + */ + +#ifndef __SDRAMMODE_H_DEFINED +#define __SDRAMMODE_H_DEFINED + +// SDRAM Mode Register definitions, per JESD79D +// These are transmitted via A0-A13 + +// Burst length +#define SDRAM_BURST_2 (1<<0) +#define SDRAM_BURST_4 (2<<0) +#define SDRAM_BURST_8 (3<<0) + +#define SDRAM_BURST_SEQUENTIAL (0<<3) +#define SDRAM_BURST_INTERLEAVED (1<<3) + +#define SDRAM_CAS_2_0 (2<<4) +#define SDRAM_CAS_3_0 (3<<4) /* Optional for DDR 200-333 */ +#define SDRAM_CAS_1_5 (5<<4) /* Optional */ +#define SDRAM_CAS_2_5 (6<<4) +#define SDRAM_CAS_MASK (7<<4) + +#define SDRAM_MODE_NORMAL (0 << 7) +#define SDRAM_MODE_TEST (1 << 7) +#define SDRAM_MODE_DLL_RESET (2 << 7) + +// Extended Mode Register + +#define SDRAM_EXTMODE_DLL_ENABLE (0 << 0) +#define SDRAM_EXTMODE_DLL_DISABLE (1 << 0) + +#define SDRAM_EXTMODE_DRIVE_NORMAL (0 << 1) +#define SDRAM_EXTMODE_DRIVE_WEAK (1 << 1) /* Optional */ + +#endif // __SDRAMMODE_H_DEFINED |