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mtd: move NAND files into a raw/ subdirectory

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NAND flavors, like serial and parallel, have a lot in common and would
benefit to share code. Let's move raw (parallel) NAND specific code in a
raw/ subdirectory, to ease the addition of a core file in nand/ and the
introduction of a spi/ subdirectory specific to SPI NANDs.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Miquel Raynal 2018-08-16 17:30:07 +02:00 • committed by Jagan Teki
parent ce9bdc8743
commit a430fa06a4
66 changed files with 400 additions and 395 deletions
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64
drivers/mtd/nand/raw/nand_plat.c Normal file
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/*
* Genericish driver for memory mapped NAND devices
*
* Copyright (c) 2006-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
/* Your board must implement the following macros:
* NAND_PLAT_WRITE_CMD(chip, cmd)
* NAND_PLAT_WRITE_ADR(chip, cmd)
* NAND_PLAT_INIT()
*
* It may also implement the following:
* NAND_PLAT_DEV_READY(chip)
*/
#include <common.h>
#include <asm/io.h>
#ifdef NAND_PLAT_GPIO_DEV_READY
# include <asm/gpio.h>
# define NAND_PLAT_DEV_READY(chip) gpio_get_value(NAND_PLAT_GPIO_DEV_READY)
#endif
#include <nand.h>
static void plat_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *this = mtd_to_nand(mtd);
if (cmd == NAND_CMD_NONE)
return;
if (ctrl & NAND_CLE)
NAND_PLAT_WRITE_CMD(this, cmd);
else
NAND_PLAT_WRITE_ADR(this, cmd);
}
#ifdef NAND_PLAT_DEV_READY
static int plat_dev_ready(struct mtd_info *mtd)
{
return NAND_PLAT_DEV_READY((struct nand_chip *)mtd_to_nand(mtd));
}
#else
# define plat_dev_ready NULL
#endif
int board_nand_init(struct nand_chip *nand)
{
#ifdef NAND_PLAT_GPIO_DEV_READY
gpio_request(NAND_PLAT_GPIO_DEV_READY, "nand-plat");
gpio_direction_input(NAND_PLAT_GPIO_DEV_READY);
#endif
#ifdef NAND_PLAT_INIT
NAND_PLAT_INIT();
#endif
nand->cmd_ctrl = plat_cmd_ctrl;
nand->dev_ready = plat_dev_ready;
nand->ecc.mode = NAND_ECC_SOFT;
return 0;
}