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CFI: support JEDEC flash roms in CFI-flash framework

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The following patch adds support for non-CFI flash ROMS, by hooking into the
CFI flash code and using most of its code, as recently discussed here in the
thread "Mixing CFI and non-CFI flashs".

Signed-off-by: Michael Schwingen <michael@schwingen.org>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Michael Schwingen
2007-12-07 23:35:02 +01:00
committed by Stefan Roese
parent 41be969f49
commit 81b20ccc2d
4 changed files with 421 additions and 12 deletions
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10
include/flash.h
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@@ -52,6 +52,9 @@ typedef struct {
ushort ext_addr; /* extended query table address */
ushort cfi_version; /* cfi version */
ushort cfi_offset; /* offset for cfi query */
ulong addr_unlock1; /* unlock address 1 for AMD flash roms */
ulong addr_unlock2; /* unlock address 2 for AMD flash roms */
const char *name; /* human-readable name */
#endif
} flash_info_t;
@@ -101,6 +104,13 @@ extern void flash_read_user_serial(flash_info_t * info, void * buffer, int offse
extern void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len);
#endif /* CFG_FLASH_PROTECTION */
#ifdef CONFIG_FLASH_CFI_LEGACY
extern ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info);
extern int jedec_flash_match(flash_info_t *info, ulong base);
#define CFI_CMDSET_AMD_LEGACY 0xFFF0
#endif
/*-----------------------------------------------------------------------
* return codes from flash_write():
*/