blob: d56303620dcc85a77fc4079064803bbf13182789 [file] [log] [blame]
/*
* (C) Copyright 2000-2010
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2008
* Stuart Wood, Lab X Technologies <stuart.wood@labxtechnologies.com>
*
* (C) Copyright 2004
* Jian Zhang, Texas Instruments, jzhang@ti.com.
*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Andreas Heppel <aheppel@sysgo.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
#include <malloc.h>
//#include <nand.h> /* fixme, using header's of amlnand */
#include <search.h>
#include <errno.h>
#if defined(CONFIG_CMD_SAVEENV) && (defined(CONFIG_AML_NAND) || defined(CONFIG_AML_MTD))
#define CMD_SAVEENV
#elif defined(CONFIG_ENV_OFFSET_REDUND)
#error CONFIG_ENV_OFFSET_REDUND must have CONFIG_CMD_SAVEENV & (CONFIG_AML_NAND || CONFIG_AML_MTD)
#endif
#if defined(CONFIG_ENV_SIZE_REDUND) && \
(CONFIG_ENV_SIZE_REDUND != CONFIG_ENV_SIZE)
#error CONFIG_ENV_SIZE_REDUND should be the same as CONFIG_ENV_SIZE
#endif
#ifndef CONFIG_ENV_RANGE
#define CONFIG_ENV_RANGE CONFIG_ENV_SIZE
#endif
#if defined(CONFIG_AML_NAND) || defined(CONFIG_AML_MTD)
extern int amlnf_env_read(u_char *buf, int len);
extern int amlnf_env_save(u_char *buf, int len);
#ifndef CONFIG_STORE_COMPATIBLE
#if defined(CONFIG_AML_NAND)
/* fixme, can it be aml-nftl? */
char *env_name_spec = "aml-nand";
#elif defined(CONFIG_AML_MTD)
char *env_name_spec = "aml-mtd";
#endif
#if defined(ENV_IS_EMBEDDED)
env_t *env_ptr = &environment;
#elif defined(CONFIG_NAND_ENV_DST)
env_t *env_ptr = (env_t *)CONFIG_NAND_ENV_DST;
#else /* ! ENV_IS_EMBEDDED */
env_t *env_ptr;
#endif /* ENV_IS_EMBEDDED */
#endif /* CONFIG_STORE_COMPATIBLE */
DECLARE_GLOBAL_DATA_PTR;
/*
* This is called before nand_init() so we can't read NAND to
* validate env data.
*
* Mark it OK for now. env_relocate() in env_common.c will call our
* relocate function which does the real validation.
*
* When using a NAND boot image (like sequoia_nand), the environment
* can be embedded or attached to the U-Boot image in NAND flash.
* This way the SPL loads not only the U-Boot image from NAND but
* also the environment.
*/
#ifdef CONFIG_STORE_COMPATIBLE
int amlnand_env_int(void)
#else
int env_init(void)
#endif
{
#if defined(ENV_IS_EMBEDDED) || defined(CONFIG_NAND_ENV_DST)
int crc1_ok = 0, crc2_ok = 0;
env_t *tmp_env1;
tmp_env1 = env_ptr;
crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc;
if (!crc1_ok && !crc2_ok) {
gd->env_addr = 0;
gd->env_valid = 0;
return 0;
} else if (crc1_ok && !crc2_ok) {
gd->env_valid = 1;
}
if (gd->env_valid == 1)
env_ptr = tmp_env1;
gd->env_addr = (ulong)env_ptr->data;
#else /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
gd->env_addr = (ulong)&default_environment[0];
gd->env_valid = 1;
#endif /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
return 0;
}
#ifdef CMD_SAVEENV
#ifdef CONFIG_STORE_COMPATIBLE
int amlnand_saveenv(void)
#else
int saveenv(void)
#endif
{
#if ENABLE_RSV_ENV
int ret = 0;
ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
ret = env_export(env_new);
if (ret)
return ret;
ret = amlnf_env_save((u_char *)env_new, CONFIG_ENV_SIZE);
return ret;
#else
return -1;
#endif
}
#endif /* CMD_SAVEENV */
static int readenv(u_char *buf)
{
#if ENABLE_RSV_ENV
int ret;
ret = amlnf_env_read(buf, CONFIG_ENV_SIZE);
if (ret) {
printf("%s() return %d\n", __func__, ret);
}
return ret;
#else
return -1;
#endif
}
/*
* The legacy NAND code saved the environment in the first NAND
* device i.e., nand_dev_desc + 0. This is also the behaviour using
* the new NAND code.
*/
#ifdef CONFIG_STORE_COMPATIBLE
void amlnand_env_relocate_spec(void)
#else
void env_relocate_spec(void)
#endif
{
#if !defined(ENV_IS_EMBEDDED)
int ret;
ALLOC_CACHE_ALIGN_BUFFER(u_char, buf, CONFIG_ENV_SIZE);
ret = readenv(buf);
if (ret) {
set_default_env("!readenv() failed");
//saveenv();
return;
}
env_import((char *)buf, 1);
#endif /* ! ENV_IS_EMBEDDED */
}
#endif