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cfi-mtd: Add cfi-mtd driver.

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Add cfi-mtd driver, which exports CFI flash to MTD layer.
This allows CFI flash devices to be used from MTD layer.

Building of the new driver is controlled by CONFIG_FLASH_CFI_MTD
option. Initialization is done by calling cfi_mtd_init() from
flash_init().

Signed-off-by: Piotr Ziecik <kosmo@semihalf.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Piotr Ziecik
2008-11-17 15:57:58 +01:00
committed by Stefan Roese
parent 6ea808efdf
commit 91809ed51d
5 changed files with 221 additions and 0 deletions
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8
include/flash.h
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@ -86,6 +86,9 @@ typedef unsigned long flash_sect_t;
/* convert between bit value and numeric value */
#define CFI_FLASH_SHIFT_WIDTH 3
/* cfi-mtd device name */
#define CFI_MTD_DEV_NAME "cfi-mtd"
/* Prototypes */
extern unsigned long flash_init (void);
@ -103,6 +106,11 @@ extern int flash_write (char *, ulong, ulong);
extern flash_info_t *addr2info (ulong);
extern int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt);
/* drivers/mtd/cfi_mtd.c */
#ifdef CONFIG_FLASH_CFI_MTD
extern int cfi_mtd_init(void);
#endif
/* board/?/flash.c */
#if defined(CONFIG_SYS_FLASH_PROTECTION)
extern int flash_real_protect(flash_info_t *info, long sector, int prot);