upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.3 KiB
64 lines
1.3 KiB
/*
|
|
* 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;
|
|
}
|
|
|