mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
2eb1573f01
The non-reentrant versions of the hashtable functions operate on a single shared hashtable. So if two different people try using these funcs for two different purposes, they'll cause problems for the other. Avoid this by converting all existing hashtable consumers over to the reentrant versions and then punting the non-reentrant ones. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
152 lines
3.6 KiB
C
152 lines
3.6 KiB
C
/*
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* (C) Copyright 2010 DENX Software Engineering
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* Wolfgang Denk <wd@denx.de>
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*
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* (C) Copyright 2005-2009 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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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 <command.h>
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#include <environment.h>
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#include <linux/stddef.h>
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#include <malloc.h>
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#include <search.h>
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#include <errno.h>
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#include <linux/mtd/compat.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/onenand.h>
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extern struct mtd_info onenand_mtd;
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extern struct onenand_chip onenand_chip;
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/* References to names in env_common.c */
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extern uchar default_environment[];
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char *env_name_spec = "OneNAND";
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#define ONENAND_MAX_ENV_SIZE 4096
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#define ONENAND_ENV_SIZE(mtd) (ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
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#ifdef ENV_IS_EMBEDDED
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extern uchar environment[];
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#endif /* ENV_IS_EMBEDDED */
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DECLARE_GLOBAL_DATA_PTR;
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uchar env_get_char_spec(int index)
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{
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return (*((uchar *)(gd->env_addr + index)));
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}
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void env_relocate_spec(void)
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{
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struct mtd_info *mtd = &onenand_mtd;
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#ifdef CONFIG_ENV_ADDR_FLEX
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struct onenand_chip *this = &onenand_chip;
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#endif
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int rc;
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size_t retlen;
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#ifdef ENV_IS_EMBEDDED
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char *buf = (char *)&environment[0];
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#else
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loff_t env_addr = CONFIG_ENV_ADDR;
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char onenand_env[ONENAND_MAX_ENV_SIZE];
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char *buf = (char *)&onenand_env[0];
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#endif /* ENV_IS_EMBEDDED */
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#ifndef ENV_IS_EMBEDDED
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# ifdef CONFIG_ENV_ADDR_FLEX
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if (FLEXONENAND(this))
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env_addr = CONFIG_ENV_ADDR_FLEX;
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# endif
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/* Check OneNAND exist */
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if (mtd->writesize)
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/* Ignore read fail */
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mtd->read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
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&retlen, (u_char *)buf);
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else
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mtd->writesize = MAX_ONENAND_PAGESIZE;
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#endif /* !ENV_IS_EMBEDDED */
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rc = env_import(buf, 1);
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if (rc)
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gd->env_valid = 1;
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}
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int saveenv(void)
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{
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env_t env_new;
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ssize_t len;
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char *res;
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struct mtd_info *mtd = &onenand_mtd;
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#ifdef CONFIG_ENV_ADDR_FLEX
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struct onenand_chip *this = &onenand_chip;
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#endif
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loff_t env_addr = CONFIG_ENV_ADDR;
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size_t retlen;
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struct erase_info instr = {
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.callback = NULL,
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};
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res = (char *)&env_new.data;
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len = hexport_r(&env_htab, '\0', &res, ENV_SIZE);
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if (len < 0) {
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error("Cannot export environment: errno = %d\n", errno);
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return 1;
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}
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env_new.crc = crc32(0, env_new.data, ENV_SIZE);
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instr.len = CONFIG_ENV_SIZE;
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#ifdef CONFIG_ENV_ADDR_FLEX
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if (FLEXONENAND(this)) {
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env_addr = CONFIG_ENV_ADDR_FLEX;
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instr.len = CONFIG_ENV_SIZE_FLEX;
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instr.len <<= onenand_mtd.eraseregions[0].numblocks == 1 ?
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1 : 0;
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}
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#endif
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instr.addr = env_addr;
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instr.mtd = mtd;
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if (mtd->erase(mtd, &instr)) {
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printf("OneNAND: erase failed at 0x%08llx\n", env_addr);
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return 1;
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}
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if (mtd->write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
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(u_char *)&env_new)) {
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printf("OneNAND: write failed at 0x%llx\n", instr.addr);
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return 2;
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}
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return 0;
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}
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int env_init(void)
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{
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/* use default */
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gd->env_addr = (ulong) & default_environment[0];
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gd->env_valid = 1;
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return 0;
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}
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