2 * Copyright (c) 2008 Nuovation System Designs, LLC
3 * Grant Erickson <gerickson@nuovations.com>
5 * Copyright (c) 2007-2009 DENX Software Engineering, GmbH
6 * Stefan Roese <sr@denx.de>
8 * SPDX-License-Identifier: GPL-2.0+
11 * This file implements ECC initialization for PowerPC processors
12 * using the IBM SDRAM DDR1 & DDR2 controller.
19 * Since the IBM DDR controller used on 440GP/GX/EP/GR is not register
20 * compatible to the IBM DDR/2 controller used on 405EX/440SP/SPe/460EX/GT
21 * we need to make some processor dependant defines used later on by the
25 /* For 440GP/GX/EP/GR */
26 #if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR)
27 #define SDRAM_MCOPT1 SDRAM_CFG0
28 #define SDRAM_MCOPT1_MCHK_MASK SDRAM_CFG0_MCHK_MASK
29 #define SDRAM_MCOPT1_MCHK_NON SDRAM_CFG0_MCHK_NON
30 #define SDRAM_MCOPT1_MCHK_GEN SDRAM_CFG0_MCHK_GEN
31 #define SDRAM_MCOPT1_MCHK_CHK SDRAM_CFG0_MCHK_CHK
32 #define SDRAM_MCOPT1_MCHK_CHK_REP SDRAM_CFG0_MCHK_CHK
33 #define SDRAM_MCOPT1_DMWD_MASK SDRAM_CFG0_DMWD_MASK
34 #define SDRAM_MCOPT1_DMWD_32 SDRAM_CFG0_DMWD_32
36 #define SDRAM_MCSTAT SDRAM0_MCSTS
37 #define SDRAM_MCSTAT_IDLE_MASK SDRAM_MCSTS_CIS
38 #define SDRAM_MCSTAT_IDLE_NOT SDRAM_MCSTS_IDLE_NOT
40 #define SDRAM_ECCES SDRAM0_ECCESR
43 void ecc_init(unsigned long * const start, unsigned long size);
44 void do_program_ecc(unsigned long tlb_word2_i_value);
46 static void inline blank_string(int size)
50 for (i = 0; i < size; i++)
52 for (i = 0; i < size; i++)
54 for (i = 0; i < size; i++)