upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
123 lines
3.8 KiB
123 lines
3.8 KiB
/*
|
|
* (C) Copyright 2002
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _ENVIRONMENT_H_
|
|
#define _ENVIRONMENT_H_ 1
|
|
|
|
/**************************************************************************
|
|
*
|
|
* The "environment" is stored as a list of '\0' terminated
|
|
* "name=value" strings. The end of the list is marked by a double
|
|
* '\0'. New entries are always added at the end. Deleting an entry
|
|
* shifts the remaining entries to the front. Replacing an entry is a
|
|
* combination of deleting the old value and adding the new one.
|
|
*
|
|
* The environment is preceeded by a 32 bit CRC over the data part.
|
|
*
|
|
**************************************************************************
|
|
*/
|
|
|
|
#if defined(CFG_ENV_IS_IN_FLASH)
|
|
# ifndef CFG_ENV_ADDR
|
|
# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
|
|
# endif
|
|
# ifndef CFG_ENV_OFFSET
|
|
# define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)
|
|
# endif
|
|
# if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND)
|
|
# define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND)
|
|
# endif
|
|
# if defined(CFG_ENV_SECT_SIZE) || defined(CFG_ENV_SIZE)
|
|
# ifndef CFG_ENV_SECT_SIZE
|
|
# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
|
|
# endif
|
|
# ifndef CFG_ENV_SIZE
|
|
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
|
|
# endif
|
|
# else
|
|
# error "Both CFG_ENV_SECT_SIZE and CFG_ENV_SIZE undefined"
|
|
# endif
|
|
# if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND)
|
|
# define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
|
|
# endif
|
|
# if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
|
|
(CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)
|
|
# define ENV_IS_EMBEDDED 1
|
|
# endif
|
|
# if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND)
|
|
# define CFG_REDUNDAND_ENVIRONMENT 1
|
|
# endif
|
|
#endif /* CFG_ENV_IS_IN_FLASH */
|
|
|
|
#if defined(CONFIG_ENV_IS_IN_NAND)
|
|
# ifndef CFG_ENV_OFFSET
|
|
# error "Need to define CFG_ENV_OFFSET when using CONFIG_ENV_IS_IN_NAND"
|
|
# endif
|
|
# ifndef CFG_ENV_SIZE
|
|
# error "Need to define CFG_ENV_SIZE when using CONFIG_ENV_IS_IN_NAND"
|
|
# endif
|
|
# ifdef CFG_ENV_OFFSET_REDUND
|
|
# define CFG_REDUNDAND_ENVIRONMENT
|
|
# endif
|
|
# ifdef CFG_ENV_IS_EMBEDDED
|
|
# define ENV_IS_EMBEDDED 1
|
|
# endif
|
|
#endif /* CONFIG_ENV_IS_IN_NAND */
|
|
|
|
#ifdef USE_HOSTCC
|
|
# include <stdint.h>
|
|
#else
|
|
# include <linux/types.h>
|
|
#endif
|
|
|
|
#ifdef CFG_REDUNDAND_ENVIRONMENT
|
|
# define ENV_HEADER_SIZE (sizeof(uint32_t) + 1)
|
|
#else
|
|
# define ENV_HEADER_SIZE (sizeof(uint32_t))
|
|
#endif
|
|
|
|
|
|
#define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE)
|
|
|
|
typedef struct environment_s {
|
|
uint32_t crc; /* CRC32 over data bytes */
|
|
#ifdef CFG_REDUNDAND_ENVIRONMENT
|
|
unsigned char flags; /* active/obsolete flags */
|
|
#endif
|
|
unsigned char data[ENV_SIZE]; /* Environment data */
|
|
} env_t;
|
|
|
|
/* Function that returns a character from the environment */
|
|
unsigned char env_get_char (int);
|
|
|
|
/* Function that returns a pointer to a value from the environment */
|
|
unsigned char *env_get_addr(int);
|
|
unsigned char env_get_char_memory (int index);
|
|
|
|
/* Function that updates CRC of the enironment */
|
|
void env_crc_update (void);
|
|
|
|
/* [re]set to the default environment */
|
|
void set_default_env(void);
|
|
|
|
#endif /* _ENVIRONMENT_H_ */
|
|
|