Commit 512d73d1 authored by Roger Quadros's avatar Roger Quadros
Browse files

memory: omap-gpmc: Add GPMC-NAND ops to get writebufferempty status 



This is needed by OMAP NAND driver to poll the empty status
of the writebuffer.

Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
parent f47fcad6

drivers/memory/omap-gpmc.c

+13 −1
Original line number Original line Diff line number Diff line
@@ -81,6 +81,8 @@ 




#define GPMC_CONFIG_LIMITEDADDRESS		BIT(1)

#define GPMC_CONFIG_LIMITEDADDRESS		BIT(1)





#define GPMC_STATUS_EMPTYWRITEBUFFERSTATUS	BIT(0)



#define	GPMC_CONFIG2_CSEXTRADELAY		BIT(7)

#define	GPMC_CONFIG2_CSEXTRADELAY		BIT(7)

#define	GPMC_CONFIG3_ADVEXTRADELAY		BIT(7)

#define	GPMC_CONFIG3_ADVEXTRADELAY		BIT(7)

#define	GPMC_CONFIG4_OEEXTRADELAY		BIT(7)

#define	GPMC_CONFIG4_OEEXTRADELAY		BIT(7)
@@ -1118,7 +1120,17 @@ void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs) 
	}

	}

}

}





static struct gpmc_nand_ops nand_ops;

static bool gpmc_nand_writebuffer_empty(void)

{

	if (gpmc_read_reg(GPMC_STATUS) & GPMC_STATUS_EMPTYWRITEBUFFERSTATUS)

		return true;



	return false;

}



static struct gpmc_nand_ops nand_ops = {

	.nand_writebuffer_empty = gpmc_nand_writebuffer_empty,

};





/**

/**

 * gpmc_omap_get_nand_ops - Get the GPMC NAND interface

 * gpmc_omap_get_nand_ops - Get the GPMC NAND interface