99 lines
2.6 KiB
C
99 lines
2.6 KiB
C
/*
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* (C) Copyright 2005
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* 2N Telekomunikace, a.s. <www.2n.cz>
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* Ladislav Michl <michl@2n.cz>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <nand.h>
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#ifndef CONFIG_SYS_NAND_BASE_LIST
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#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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int nand_curr_device = -1;
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nand_info_t nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
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static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
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static ulong base_address[CONFIG_SYS_MAX_NAND_DEVICE] = CONFIG_SYS_NAND_BASE_LIST;
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static const char default_nand_name[] = "nand";
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static __attribute__((unused)) char dev_name[CONFIG_SYS_MAX_NAND_DEVICE][8];
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static void nand_init_chip(struct mtd_info *mtd, struct nand_chip *nand,
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ulong base_addr)
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{
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int maxchips = CONFIG_SYS_NAND_MAX_CHIPS;
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int __attribute__((unused)) i = 0;
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if (maxchips < 1)
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maxchips = 1;
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mtd->priv = nand;
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nand->IO_ADDR_R = nand->IO_ADDR_W = (void __iomem *)base_addr;
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if (board_nand_init(nand) == 0) {
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if (nand_scan(mtd, maxchips) == 0) {
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if (!mtd->name)
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mtd->name = (char *)default_nand_name;
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#ifndef CONFIG_RELOC_FIXUP_WORKS
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else
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mtd->name += gd->reloc_off;
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#endif
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#ifdef CONFIG_MTD_DEVICE
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/*
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* Add MTD device so that we can reference it later
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* via the mtdcore infrastructure (e.g. ubi).
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*/
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sprintf(dev_name[i], "nand%d", i);
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mtd->name = dev_name[i++];
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add_mtd_device(mtd);
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#endif
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} else
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mtd->name = NULL;
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} else {
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mtd->name = NULL;
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mtd->size = 0;
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}
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}
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void nand_init(void)
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{
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int i;
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unsigned int size = 0;
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for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
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nand_init_chip(&nand_info[i], &nand_chip[i], base_address[i]);
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size += nand_info[i].size / 1024;
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if (nand_curr_device == -1)
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nand_curr_device = i;
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}
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printf("%u MiB\n", size / 1024);
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#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
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/*
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* Select the chip in the board/cpu specific driver
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*/
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board_nand_select_device(nand_info[nand_curr_device].priv, nand_curr_device);
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#endif
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}
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