Commit 68dc8e41 authored by Sascha Hauer's avatar Sascha Hauer Committed by Boris Brezillon
Browse files

mtd: nand: mxc: remove now unused code 



Since we now have our own read_page/write_page functions
mxc_nand_command() will no longer be called with NAND_CMD_READ0,
NAND_CMD_READOOB, NAND_CMD_SEQIN and NAND_CMD_PAGEPROG. Remove
the code handling these commands.

Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
parent cd8b4655

drivers/mtd/nand/mxc_nand.c

+0 −51
Original line number Diff line number Diff line
@@ -1391,57 +1391,6 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, 
		mxc_do_addr_cycle(mtd, column, page_addr);

		break;



	case NAND_CMD_READ0:

	case NAND_CMD_READOOB:

		if (command == NAND_CMD_READ0)

			host->buf_start = column;

		else

			host->buf_start = column + mtd->writesize;



		command = NAND_CMD_READ0; /* only READ0 is valid */



		host->devtype_data->send_cmd(host, command, false);

		WARN_ONCE(column < 0,

			  "Unexpected column/row value (cmd=%u, col=%d, row=%d)\n",

			  command, column, page_addr);

		mxc_do_addr_cycle(mtd, 0, page_addr);



		if (mtd->writesize > 512)

			host->devtype_data->send_cmd(host,

					NAND_CMD_READSTART, true);



		host->devtype_data->send_page(mtd, NFC_OUTPUT);



		memcpy32_fromio(host->data_buf, host->main_area0,

				mtd->writesize);

		copy_spare(mtd, true, host->data_buf + mtd->writesize);

		break;



	case NAND_CMD_SEQIN:

		if (column >= mtd->writesize)

			/* call ourself to read a page */

			mxc_nand_command(mtd, NAND_CMD_READ0, 0, page_addr);



		host->buf_start = column;



		host->devtype_data->send_cmd(host, command, false);

		WARN_ONCE(column < -1,

			  "Unexpected column/row value (cmd=%u, col=%d, row=%d)\n",

			  command, column, page_addr);

		mxc_do_addr_cycle(mtd, 0, page_addr);

		break;



	case NAND_CMD_PAGEPROG:

		memcpy32_toio(host->main_area0, host->data_buf, mtd->writesize);

		copy_spare(mtd, false, host->data_buf + mtd->writesize);

		host->devtype_data->send_page(mtd, NFC_INPUT);

		host->devtype_data->send_cmd(host, command, true);

		WARN_ONCE(column != -1 || page_addr != -1,

			  "Unexpected column/row value (cmd=%u, col=%d, row=%d)\n",

			  command, column, page_addr);

		mxc_do_addr_cycle(mtd, column, page_addr);

		break;



	case NAND_CMD_READID:

		host->devtype_data->send_cmd(host, command, true);

		mxc_do_addr_cycle(mtd, column, page_addr);

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