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Commit f4fa697c authored by Simon Polette's avatar Simon Polette Committed by David Woodhouse
Browse files

mtd: add on-flash BBT support for Atmel NAND driver 



Just add a new on-flash-bbt module parameter.

Signed-off-by: default avatarSimon Polette <spolette@adetelgroup.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent bd3fd62e

drivers/mtd/nand/atmel_nand.c

+10 −1
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 


#include <linux/slab.h>

#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/platform_device.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/nand.h>
@@ -47,6 +48,9 @@ 
#define no_ecc		0

#endif



static int on_flash_bbt = 0;

module_param(on_flash_bbt, int, 0);



/* Register access macros */

#define ecc_readl(add, reg)				\

	__raw_readl(add + ATMEL_ECC_##reg)
@@ -459,12 +463,17 @@ static int __init atmel_nand_probe(struct platform_device *pdev) 


	if (host->board->det_pin) {

		if (gpio_get_value(host->board->det_pin)) {

			printk("No SmartMedia card inserted.\n");

			printk(KERN_INFO "No SmartMedia card inserted.\n");

			res = ENXIO;

			goto err_no_card;

		}

	}



	if (on_flash_bbt) {

		printk(KERN_INFO "atmel_nand: Use On Flash BBT\n");

		nand_chip->options |= NAND_USE_FLASH_BBT;

	}



	/* first scan to find the device and get the page size */

	if (nand_scan_ident(mtd, 1)) {

		res = -ENXIO;