/*
* Board-specific NAND initialization.
* We use a "generic" STM function stm_default_board_nand_init() to do it.
* However, we can easily override anything locally, if required.
*/
extern int board_nand_init(struct nand_chip * const nand)
{
#if defined(CONFIG_SYS_ST40_NAND_USE_BIT_BANGING) /* use the S/W "bit-banging" driver */
stm_default_board_nand_init(nand, mb837_cmd_ctrl, mb837_device_ready);
#else /* else, use a H/W driver */
stm_default_board_nand_init(nand, NULL, NULL);
#endif /* CONFIG_SYS_ST40_NAND_USE_BIT_BANGING */
/*
* Only enable the following to use a (volatile) RAM-based
* (not NAND-resident) Bad Block Table (BBT).
* This is *not* recommended! A NAND-resident BBT is recommended.
*/
#if 0
nand->options &= ~NAND_USE_FLASH_BBT;
#endif
return 0;
}
/*
* Board-specific NAND initialization.
* We use a "generic" STM function stm_default_board_nand_init() to do it.
* However, we can easily override anything locally, if required.
*/
extern int board_nand_init(struct nand_chip * const nand)
{
#if defined(CFG_NAND_FLEX_MODE) /* for STM "flex-mode" */
stm_default_board_nand_init(nand, NULL, NULL);
#else /* for "bit-banging" */
stm_default_board_nand_init(nand, b2037_hwcontrol, b2037_device_ready);
#endif
/*
* Only enable the following to use a (volatile) RAM-based
* (not NAND-resident) Bad Block Table (BBT).
* This is *not* recommended! A NAND-resident BBT is recommended.
*/
#if 0
nand->options &= ~NAND_USE_FLASH_BBT;
#endif
return 0;
}
/*
* Board-specific NAND initialization.
* We use a "generic" STM function stm_default_board_nand_init() to do it.
* However, we can easily override anything locally, if required.
*/
extern int board_nand_init(struct nand_chip * const nand)
{
/* initialize for "bit-banging" */
stm_default_board_nand_init(nand, mb618_cmd_ctrl, NULL);
nand->chip_delay = 25;
/*
* Only enable the following to use a (volatile) RAM-based
* (not NAND-resident) Bad Block Table (BBT).
* This is *not* recommended! A NAND-resident BBT is recommended.
*/
#if 0
nand->options &= ~NAND_USE_FLASH_BBT;
#endif
return 0;
}
