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 
32 DECLARE_GLOBAL_DATA_PTR;
33 
34 int checkboard(void)
35 {
36 	puts("Board: ");
37 	puts("Freescale FireEngine 5475 EVB\n");
38 	return 0;
39 };
40 
41 phys_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 CONFIG_SYS_DRAMSZ1
47 	u32 temp;
48 #endif
49 
50 	siu->drv = CONFIG_SYS_SDRAM_DRVSTRENGTH;
51 
52 	dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
53 	for (i = 0x13; i < 0x20; i++) {
54 		if (dramsize == (1 << i))
55 			break;
56 	}
57 	i--;
58 	siu->cs0cfg = (CONFIG_SYS_SDRAM_BASE | i);
59 
60 #ifdef CONFIG_SYS_DRAMSZ1
61 	temp = CONFIG_SYS_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 = ((CONFIG_SYS_SDRAM_BASE + temp) | i);
69 #endif
70 
71 	sdram->cfg1 = CONFIG_SYS_SDRAM_CFG1;
72 	sdram->cfg2 = CONFIG_SYS_SDRAM_CFG2;
73 
74 	/* Issue PALL */
75 	sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 2;
76 
77 	/* Issue LEMR */
78 	sdram->mode = CONFIG_SYS_SDRAM_EMOD;
79 	sdram->mode = (CONFIG_SYS_SDRAM_MODE | 0x04000000);
80 
81 	udelay(500);
82 
83 	/* Issue PALL */
84 	sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL | 2);
85 
86 	/* Perform two refresh cycles */
87 	sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
88 	sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
89 
90 	sdram->mode = CONFIG_SYS_SDRAM_MODE;
91 
92 	sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
93 
94 	udelay(100);
95 
96 	return dramsize;
97 };
98 
99 int 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  */
111 static struct pci_controller hose;
112 extern void pci_mcf547x_8x_init(struct pci_controller *hose);
113 
114 void pci_init_board(void)
115 {
116 	pci_mcf547x_8x_init(&hose);
117 }
118 #endif				/* CONFIG_PCI */
119