Scott,
As you know, the P1022 has this weird LBC/DIU muxing problem. I'd like to
add support for the 'nand' command while the DIU is active. Looking at
the NAND code, I see functions nand_get_device() and
nand_release_device(). What is the idea behind these functions? Would it
make sense to do something like this:
static int __board_start_nand(void)
{
return 0;
}
int board_start_nand(void) __attribute__((weak, alias("__board_start_nand")));
static void __board_finish_nand(void)
{
}
void board_finish_nand(void) __attribute__((weak,
alias("__board_finish_nand")));
static int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd,
int new_state)
{
chip->state = new_state;
return board_start_nand();
}
static void nand_release_device(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
board_finish_nand();
/* De-select the NAND device */
chip->select_chip(mtd, -1);
}
--
Timur Tabi
Linux kernel developer at Freescale
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