[FIX] remove cute code
[platform/kernel/u-boot.git] / drivers / nand / nand.c
1 /*
2  * (C) Copyright 2005
3  * 2N Telekomunikace, a.s. <www.2n.cz>
4  * Ladislav Michl <michl@2n.cz>
5  *
6  * See file CREDITS for list of people who contributed to this
7  * project.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * version 2 as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23
24 #include <common.h>
25
26 #if (CONFIG_COMMANDS & CFG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
27
28 #include <nand.h>
29
30 #ifndef CFG_NAND_BASE_LIST
31 #define CFG_NAND_BASE_LIST { CFG_NAND_BASE }
32 #endif
33
34 int nand_curr_device = -1;
35 nand_info_t nand_info[CFG_MAX_NAND_DEVICE];
36
37 static struct nand_chip nand_chip[CFG_MAX_NAND_DEVICE];
38 static ulong base_address[CFG_MAX_NAND_DEVICE] = CFG_NAND_BASE_LIST;
39
40 static const char default_nand_name[] = "nand";
41
42 extern int board_nand_init(struct nand_chip *nand);
43
44 static void nand_init_chip(struct mtd_info *mtd, struct nand_chip *nand,
45                            ulong base_addr)
46 {
47         mtd->priv = nand;
48
49         nand->IO_ADDR_R = nand->IO_ADDR_W = (void  __iomem *)base_addr;
50         if (board_nand_init(nand) == 0) {
51                 if (nand_scan(mtd, 1) == 0) {
52                         if (!mtd->name)
53                                 mtd->name = (char *)default_nand_name;
54                 } else
55                         mtd->name = NULL;
56         } else {
57                 mtd->name = NULL;
58                 mtd->size = 0;
59         }
60
61 }
62
63 void nand_init(void)
64 {
65         int i;
66         unsigned int size = 0;
67         for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
68                 nand_init_chip(&nand_info[i], &nand_chip[i], base_address[i]);
69                 size += nand_info[i].size;
70                 if (nand_curr_device == -1)
71                         nand_curr_device = i;
72         }
73         printf("%lu MiB\n", size / (1024 * 1024));
74
75 #ifdef CFG_NAND_SELECT_DEVICE
76         /*
77          * Select the chip in the board/cpu specific driver
78          */
79         board_nand_select_device(nand_info[nand_curr_device].priv, nand_curr_device);
80 #endif
81 }
82
83 #endif