Commit b2525141 authored by Boris Brezillon's avatar Boris Brezillon Committed by Miquel Raynal
Browse files

mtd: rawnand: marvell: Stop implementing ->select_chip() 



Now that the CS to be selected is kept in chip->cur_cs and passed
in nand_operation->cs, we can get rid of the ->select_chip()
implementation and replace it by an internal function which is called
from the chip->exec_op() and chip->ecc.read/write_xxx() hooks.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 550b9fc4

drivers/mtd/nand/raw/marvell_nand.c

+18 −9
Original line number Diff line number Diff line
@@ -704,7 +704,8 @@ static int marvell_nfc_wait_op(struct nand_chip *chip, unsigned int timeout_ms) 
	return 0;

}



static void marvell_nfc_select_chip(struct nand_chip *chip, int die_nr)

static void marvell_nfc_select_target(struct nand_chip *chip,

				      unsigned int die_nr)

{

	struct marvell_nand_chip *marvell_nand = to_marvell_nand(chip);

	struct marvell_nfc *nfc = to_marvell_nfc(chip->controller);
@@ -713,12 +714,6 @@ static void marvell_nfc_select_chip(struct nand_chip *chip, int die_nr) 
	if (chip == nfc->selected_chip && die_nr == marvell_nand->selected_die)

		return;



	if (die_nr < 0 || die_nr >= marvell_nand->nsels) {

		nfc->selected_chip = NULL;

		marvell_nand->selected_die = -1;

		return;

	}



	writel_relaxed(marvell_nand->ndtr0, nfc->regs + NDTR0);

	writel_relaxed(marvell_nand->ndtr1, nfc->regs + NDTR1);
@@ -1024,13 +1019,13 @@ static int marvell_nfc_hw_ecc_hmg_do_read_page(struct nand_chip *chip, 
	}



	ret = marvell_nfc_wait_cmdd(chip);



	return ret;

}



static int marvell_nfc_hw_ecc_hmg_read_page_raw(struct nand_chip *chip, u8 *buf,

						int oob_required, int page)

{

	marvell_nfc_select_target(chip, chip->cur_cs);

	return marvell_nfc_hw_ecc_hmg_do_read_page(chip, buf, chip->oob_poi,

						   true, page);

}
@@ -1043,6 +1038,7 @@ static int marvell_nfc_hw_ecc_hmg_read_page(struct nand_chip *chip, u8 *buf, 
	int max_bitflips = 0, ret;

	u8 *raw_buf;



	marvell_nfc_select_target(chip, chip->cur_cs);

	marvell_nfc_enable_hw_ecc(chip);

	marvell_nfc_hw_ecc_hmg_do_read_page(chip, buf, chip->oob_poi, false,

					    page);
@@ -1079,6 +1075,7 @@ static int marvell_nfc_hw_ecc_hmg_read_oob_raw(struct nand_chip *chip, int page) 
	/* Invalidate page cache */

	chip->pagebuf = -1;



	marvell_nfc_select_target(chip, chip->cur_cs);

	return marvell_nfc_hw_ecc_hmg_do_read_page(chip, chip->data_buf,

						   chip->oob_poi, true, page);

}
@@ -1142,6 +1139,7 @@ static int marvell_nfc_hw_ecc_hmg_write_page_raw(struct nand_chip *chip, 
						 const u8 *buf,

						 int oob_required, int page)

{

	marvell_nfc_select_target(chip, chip->cur_cs);

	return marvell_nfc_hw_ecc_hmg_do_write_page(chip, buf, chip->oob_poi,

						    true, page);

}
@@ -1152,6 +1150,7 @@ static int marvell_nfc_hw_ecc_hmg_write_page(struct nand_chip *chip, 
{

	int ret;



	marvell_nfc_select_target(chip, chip->cur_cs);

	marvell_nfc_enable_hw_ecc(chip);

	ret = marvell_nfc_hw_ecc_hmg_do_write_page(chip, buf, chip->oob_poi,

						   false, page);
@@ -1175,6 +1174,7 @@ static int marvell_nfc_hw_ecc_hmg_write_oob_raw(struct nand_chip *chip, 


	memset(chip->data_buf, 0xFF, mtd->writesize);



	marvell_nfc_select_target(chip, chip->cur_cs);

	return marvell_nfc_hw_ecc_hmg_do_write_page(chip, chip->data_buf,

						    chip->oob_poi, true, page);

}
@@ -1194,6 +1194,8 @@ static int marvell_nfc_hw_ecc_bch_read_page_raw(struct nand_chip *chip, u8 *buf, 
	int ecc_len = lt->ecc_bytes;

	int chunk;



	marvell_nfc_select_target(chip, chip->cur_cs);



	if (oob_required)

		memset(chip->oob_poi, 0xFF, mtd->oobsize);
@@ -1304,6 +1306,8 @@ static int marvell_nfc_hw_ecc_bch_read_page(struct nand_chip *chip, 
	u32 failure_mask = 0;

	int chunk, ret;



	marvell_nfc_select_target(chip, chip->cur_cs);



	/*

	 * With BCH, OOB is not fully used (and thus not read entirely), not

	 * expected bytes could show up at the end of the OOB buffer if not
@@ -1448,6 +1452,8 @@ static int marvell_nfc_hw_ecc_bch_write_page_raw(struct nand_chip *chip, 
		lt->last_spare_bytes;

	int chunk;



	marvell_nfc_select_target(chip, chip->cur_cs);



	nand_prog_page_begin_op(chip, page, 0, NULL, 0);



	for (chunk = 0; chunk < lt->nchunks; chunk++) {
@@ -1559,6 +1565,8 @@ static int marvell_nfc_hw_ecc_bch_write_page(struct nand_chip *chip, 
	int spare_len = lt->spare_bytes;

	int chunk, ret;



	marvell_nfc_select_target(chip, chip->cur_cs);



	/* Spare data will be written anyway, so clear it to avoid garbage */

	if (!oob_required)

		memset(chip->oob_poi, 0xFF, mtd->oobsize);
@@ -2097,6 +2105,8 @@ static int marvell_nfc_exec_op(struct nand_chip *chip, 
{

	struct marvell_nfc *nfc = to_marvell_nfc(chip->controller);



	marvell_nfc_select_target(chip, op->cs);



	if (nfc->caps->is_nfcv2)

		return nand_op_parser_exec_op(chip, &marvell_nfcv2_op_parser,

					      op, check_only);
@@ -2618,7 +2628,6 @@ static int marvell_nand_chip_init(struct device *dev, struct marvell_nfc *nfc, 
	nand_set_flash_node(chip, np);



	chip->exec_op = marvell_nfc_exec_op;

	chip->select_chip = marvell_nfc_select_chip;

	if (!of_property_read_bool(np, "marvell,nand-keep-config"))

		chip->setup_data_interface = marvell_nfc_setup_data_interface;

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