Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ac39ee30 authored by Mike Frysinger's avatar Mike Frysinger Committed by David Woodhouse
Browse files

mtd: Blackfin NFC: localize MMR bit masks 



Convert all magic numbers into appropriate defines, and move the defines
out of the global namespace and into this one driver.  No other driver
needs to care about the MMR layout anyways.

Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent dad94318

drivers/mtd/nand/bf5xx_nand.c

+25 −4
Original line number Diff line number Diff line
@@ -68,6 +68,27 @@ 
#define DRV_AUTHOR	"Bryan Wu <bryan.wu@analog.com>"

#define DRV_DESC	"BF5xx on-chip NAND FLash Controller Driver"



/* NFC_STAT Masks */

#define NBUSY       0x01  /* Not Busy */

#define WB_FULL     0x02  /* Write Buffer Full */

#define PG_WR_STAT  0x04  /* Page Write Pending */

#define PG_RD_STAT  0x08  /* Page Read Pending */

#define WB_EMPTY    0x10  /* Write Buffer Empty */



/* NFC_IRQSTAT Masks */

#define NBUSYIRQ    0x01  /* Not Busy IRQ */

#define WB_OVF      0x02  /* Write Buffer Overflow */

#define WB_EDGE     0x04  /* Write Buffer Edge Detect */

#define RD_RDY      0x08  /* Read Data Ready */

#define WR_DONE     0x10  /* Page Write Done */



/* NFC_RST Masks */

#define ECC_RST     0x01  /* ECC (and NFC counters) Reset */



/* NFC_PGCTL Masks */

#define PG_RD_START 0x01  /* Page Read Start */

#define PG_WR_START 0x02  /* Page Write Start */



#ifdef CONFIG_MTD_NAND_BF5XX_HWECC

static int hardware_ecc = 1;

#else
@@ -487,7 +508,7 @@ static void bf5xx_nand_dma_rw(struct mtd_info *mtd, 
	 * transferred to generate the correct ECC register

	 * values.

	 */

	bfin_write_NFC_RST(0x1);

	bfin_write_NFC_RST(ECC_RST);

	SSYNC();



	disable_dma(CH_NFC);
@@ -517,9 +538,9 @@ static void bf5xx_nand_dma_rw(struct mtd_info *mtd, 


	/* Start PAGE read/write operation */

	if (is_read)

		bfin_write_NFC_PGCTL(0x1);

		bfin_write_NFC_PGCTL(PG_RD_START);

	else

		bfin_write_NFC_PGCTL(0x2);

		bfin_write_NFC_PGCTL(PG_WR_START);

	wait_for_completion(&info->dma_completion);

}