leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Re-factoring the legacy NAND code (legacy NAND now only in board-specific

Browse Source 
code and in SoC code). Boards using the old way have CFG_NAND_LEGACY and
BOARDLIBS = drivers/nand_legacy/libnand_legacy.a added. Build breakage for
NETTA.ERR and NETTA_ISDN - will go away when the new NAND support is
implemented for these boards.
This commit is contained in:
Bartlomiej Sieka
2006-03-05 18:57:33 +01:00
parent 038ccac511
commit addb2e1650
86 changed files with 2881 additions and 2712 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
common/env_nand.c
View File

@@ -36,7 +36,7 @@
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
#include <linux/mtd/nand.h>
#include <nand.h>
#if ((CONFIG_COMMANDS&(CFG_CMD_ENV|CFG_CMD_NAND)) == (CFG_CMD_ENV|CFG_CMD_NAND))
#define CMD_SAVEENV
@@ -55,16 +55,12 @@
#error CONFIG_INFERNO not supported yet
#endif
/* references to names in cmd_nand.c */
#define NANDRW_READ 0x01
#define NANDRW_WRITE 0x00
#define NANDRW_JFFS2 0x02
extern struct nand_chip nand_dev_desc[];
int nand_rw (struct nand_chip* nand, int cmd,
int nand_legacy_rw (struct nand_chip* nand, int cmd,
size_t start, size_t len,
size_t * retlen, u_char * buf);
int nand_erase(struct nand_chip* nand, size_t ofs,
size_t len, int clean);
/* info for NAND chips, defined in drivers/nand/nand.c */
extern nand_info_t nand_info[];
/* references to names in env_common.c */
extern uchar default_environment[];
@@ -110,34 +106,43 @@ int env_init(void)
}
#ifdef CMD_SAVEENV
/*
* 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.
*/
int saveenv(void)
{
int total, ret = 0;
puts ("Erasing Nand...");
if (nand_erase(nand_dev_desc + 0, CFG_ENV_OFFSET, CFG_ENV_SIZE, 0))
return 1;
puts ("Writing to Nand... ");
ret = nand_rw(nand_dev_desc + 0,
NANDRW_WRITE | NANDRW_JFFS2, CFG_ENV_OFFSET, CFG_ENV_SIZE,
&total, (u_char*)env_ptr);
if (ret || total != CFG_ENV_SIZE)
puts ("Erasing Nand...");
if (nand_erase(&nand_info[0], CFG_NEW_OFFSET, CFG_ENV_SIZE))
return 1;
puts ("done\n");
return ret;
puts ("Writing to Nand... ");
total = CFG_ENV_SIZE;
ret = nand_write(&nand_info[0], CFG_ENV_OFFSET, &total,
(u_char*) env_ptr);
if (ret || total != CFG_ENV_SIZE)
return 1;
puts ("done\n");
return ret;
}
#endif /* CMD_SAVEENV */
/*
* 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.
*/
void env_relocate_spec (void)
{
#if !defined(ENV_IS_EMBEDDED)
int ret, total;
ret = nand_rw(nand_dev_desc + 0,
NANDRW_READ | NANDRW_JFFS2, CFG_ENV_OFFSET, CFG_ENV_SIZE,
&total, (u_char*)env_ptr);
total = CFG_ENV_SIZE;
ret = nand_read(&nand_info[0], CFG_ENV_OFFSET, &total,
(u_char*) env_ptr);
if (ret || total != CFG_ENV_SIZE)
return use_default();