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https://github.com/brain-hackers/u-boot-brain
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2e5167ccad
By now, the majority of architectures have working relocation support, so the few remaining architectures have become exceptions. To make this more obvious, we make working relocation now the default case, and flag the remaining cases with CONFIG_NEEDS_MANUAL_RELOC. Signed-off-by: Wolfgang Denk <wd@denx.de> Tested-by: Heiko Schocher <hs@denx.de> Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
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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#ifdef CONFIG_NEEDS_MANUAL_RELOC
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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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