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mtd: nand: mxc: remove now unused code

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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: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Sascha Hauer 2018-01-17 12:32:13 +01:00 committed by Boris Brezillon
parent cd8b465533
commit 68dc8e41fd
1 changed files with 0 additions and 51 deletions
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51
drivers/mtd/nand/mxc_nand.c
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@ -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);