source: SVN/rincon/u-boot/board/freescale/m548xevb/m548xevb.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 2 years 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 5485 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
47        siu->drv = CFG_SDRAM_DRVSTRENGTH;
48
49        dramsize = CFG_DRAMSZ * 0x100000;
50        for (i = 0x13; i < 0x20; i++) {
51                if (dramsize == (1 << i))
52                        break;
53        }
54        i--;
55        siu->cs0cfg = (CFG_SDRAM_BASE | i);
56
57#ifdef CFG_DRAMSZ1
58        temp = CFG_DRAMSZ1 * 0x100000;
59        for (i = 0x13; i < 0x20; i++) {
60                if (temp == (1 << i))
61                        break;
62        }
63        i--;
64        dramsize += temp;
65        siu->cs1cfg = ((CFG_SDRAM_BASE + temp) | i);
66#endif
67
68        sdram->cfg1 = CFG_SDRAM_CFG1;
69        sdram->cfg2 = CFG_SDRAM_CFG2;
70
71        /* Issue PALL */
72        sdram->ctrl = CFG_SDRAM_CTRL | 2;
73
74        /* Issue LEMR */
75        sdram->mode = CFG_SDRAM_EMOD;
76        sdram->mode = (CFG_SDRAM_MODE | 0x04000000);
77
78        udelay(500);
79
80        /* Issue PALL */
81        sdram->ctrl = (CFG_SDRAM_CTRL | 2);
82
83        /* Perform two refresh cycles */
84        sdram->ctrl = CFG_SDRAM_CTRL | 4;
85        sdram->ctrl = CFG_SDRAM_CTRL | 4;
86
87        sdram->mode = CFG_SDRAM_MODE;
88
89        sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
90
91        udelay(100);
92
93        return dramsize;
94};
95
96int testdram(void)
97{
98        /* TODO: XXX XXX XXX */
99        printf("DRAM test not implemented!\n");
100
101        return (0);
102}
103
104#if defined(CONFIG_PCI)
105/*
106 * Initialize PCI devices, report devices found.
107 */
108static struct pci_controller hose;
109extern void pci_mcf547x_8x_init(struct pci_controller *hose);
110
111void pci_init_board(void)
112{
113        pci_mcf547x_8x_init(&hose);
114}
115#endif                          /* CONFIG_PCI */
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