| /* |
| * Copyright (c) 2008 Nuovation System Designs, LLC |
| * Grant Erickson <gerickson@nuovations.com> |
| * |
| * Copyright (c) 2007 DENX Software Engineering, GmbH |
| * Stefan Roese <sr@denx.de> |
| * |
| * 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 abe 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 |
| * |
| * Description: |
| * This file implements ECC initialization for PowerPC processors |
| * using the SDRAM DDR2 controller, including the 405EX(r), |
| * 440SP(E), 460EX and 460GT. |
| * |
| */ |
| |
| #ifndef _ECC_H_ |
| #define _ECC_H_ |
| |
| #if !defined(CONFIG_SYS_ECC_PATTERN) |
| #define CONFIG_SYS_ECC_PATTERN 0x00000000 |
| #endif /* !defined(CONFIG_SYS_ECC_PATTERN) */ |
| |
| /* |
| * Since the IBM DDR controller used on 440GP/GX/EP/GR is not register |
| * compatible to the IBM DDR/2 controller used on 405EX/440SP/SPe/460EX/GT |
| * we need to make some processor dependant defines used later on by the |
| * driver. |
| */ |
| |
| /* For 440GP/GX/EP/GR */ |
| #if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR) |
| #define SDRAM_ECC_CFG SDRAM_CFG0 |
| #define SDRAM_ECC_CFG_MCHK_MASK SDRAM_CFG0_MCHK_MASK |
| #define SDRAM_ECC_CFG_MCHK_GEN SDRAM_CFG0_MCHK_GEN |
| #define SDRAM_ECC_CFG_MCHK_CHK SDRAM_CFG0_MCHK_CHK |
| #define SDRAM_ECC_CFG_DMWD_MASK SDRAM_CFG0_DMWD_MASK |
| #define SDRAM_ECC_CFG_DMWD_32 SDRAM_CFG0_DMWD_32 |
| #endif |
| |
| /* For 405EX/440SP/SPe/460EX/GT */ |
| #if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2) |
| #define SDRAM_ECC_CFG SDRAM_MCOPT1 |
| #define SDRAM_ECC_CFG_MCHK_MASK SDRAM_MCOPT1_MCHK_MASK |
| #define SDRAM_ECC_CFG_MCHK_GEN SDRAM_MCOPT1_MCHK_GEN |
| #define SDRAM_ECC_CFG_MCHK_CHK SDRAM_MCOPT1_MCHK_CHK |
| #define SDRAM_ECC_CFG_DMWD_MASK SDRAM_MCOPT1_DMWD_MASK |
| #define SDRAM_ECC_CFG_DMWD_32 SDRAM_MCOPT1_DMWD_32 |
| #endif |
| |
| extern void ecc_init(unsigned long * const start, unsigned long size); |
| |
| #endif /* _ECC_H_ */ |
