source: SVN/rincon/u-boot/board/freescale/m547xevb/m547xevb.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 2.6 KB
Line 
1/*
2 * (C) Copyright 2000-2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27#include <config.h>
28#include <common.h>
29#include <pci.h>
30#include <asm/immap.h>
31
32DECLARE_GLOBAL_DATA_PTR;
33
34int checkboard(void)
35{
36        puts("Board: ");
37        puts("Freescale FireEngine 5475 EVB\n");
38        return 0;
39};
40
41phys_size_t initdram(int board_type)
42{
43        volatile siu_t *siu = (siu_t *) (MMAP_SIU);
44        volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
45        u32 dramsize, i;
46#ifdef CFG_DRAMSZ1
47        u32 temp;
48#endif
49
50        siu->drv = CFG_SDRAM_DRVSTRENGTH;
51
52        dramsize = CFG_DRAMSZ * 0x100000;
53        for (i = 0x13; i < 0x20; i++) {
54                if (dramsize == (1 << i))
55                        break;
56        }
57        i--;
58        siu->cs0cfg = (CFG_SDRAM_BASE | i);
59
60#ifdef CFG_DRAMSZ1
61        temp = CFG_DRAMSZ1 * 0x100000;
62        for (i = 0x13; i < 0x20; i++) {
63                if (temp == (1 << i))
64                        break;
65        }
66        i--;
67        dramsize += temp;
68        siu->cs1cfg = ((CFG_SDRAM_BASE + temp) | i);
69#endif
70
71        sdram->cfg1 = CFG_SDRAM_CFG1;
72        sdram->cfg2 = CFG_SDRAM_CFG2;
73
74        /* Issue PALL */
75        sdram->ctrl = CFG_SDRAM_CTRL | 2;
76
77        /* Issue LEMR */
78        sdram->mode = CFG_SDRAM_EMOD;
79        sdram->mode = (CFG_SDRAM_MODE | 0x04000000);
80
81        udelay(500);
82
83        /* Issue PALL */
84        sdram->ctrl = (CFG_SDRAM_CTRL | 2);
85
86        /* Perform two refresh cycles */
87        sdram->ctrl = CFG_SDRAM_CTRL | 4;
88        sdram->ctrl = CFG_SDRAM_CTRL | 4;
89
90        sdram->mode = CFG_SDRAM_MODE;
91
92        sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
93
94        udelay(100);
95
96        return dramsize;
97};
98
99int testdram(void)
100{
101        /* TODO: XXX XXX XXX */
102        printf("DRAM test not implemented!\n");
103
104        return (0);
105}
106
107#if defined(CONFIG_PCI)
108/*
109 * Initialize PCI devices, report devices found.
110 */
111static struct pci_controller hose;
112extern void pci_mcf547x_8x_init(struct pci_controller *hose);
113
114void pci_init_board(void)
115{
116        pci_mcf547x_8x_init(&hose);
117}
118#endif                          /* CONFIG_PCI */
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