diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-12-07 08:12:40 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-12-07 08:12:40 +0100 |
| commit | 4f23fb1070262255443d5fe0c5db757b1b8ea2c2 (patch) | |
| tree | cc5935ef43329e2202e3ad55e034df5561162e66 /drivers/mtd/nand | |
| parent | 05bc268ec5c5bcf1eca52f2aaa9ebdcaf2edee25 (diff) | |
| parent | 1d3735498ace79322db05cf36c5ab595dd0c8112 (diff) | |
| download | barebox-4f23fb1070262255443d5fe0c5db757b1b8ea2c2.tar.gz barebox-4f23fb1070262255443d5fe0c5db757b1b8ea2c2.tar.xz | |
Merge branch 'for-next/mtd'
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 18 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_denali.c | 2 |
2 files changed, 19 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ccf9615042..128802fa5c 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -852,6 +852,15 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) chip->select_chip(mtd, chipnr); + /* + * Reset the chip. + * If we want to check the WP through READ STATUS and check the bit 7 + * we must reset the chip + * some operation can also clear the bit 7 of status register + * eg. erase/program a locked block + */ + chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); + /* Check, if it is write protected */ if (nand_check_wp(mtd)) { pr_debug("%s: device is write protected!\n", @@ -902,6 +911,15 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) chip->select_chip(mtd, chipnr); + /* + * Reset the chip. + * If we want to check the WP through READ STATUS and check the bit 7 + * we must reset the chip + * some operation can also clear the bit 7 of status register + * eg. erase/program a locked block + */ + chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); + /* Check, if it is write protected */ if (nand_check_wp(mtd)) { pr_debug("%s: device is write protected!\n", diff --git a/drivers/mtd/nand/nand_denali.c b/drivers/mtd/nand/nand_denali.c index ef3395864c..2561966243 100644 --- a/drivers/mtd/nand/nand_denali.c +++ b/drivers/mtd/nand/nand_denali.c @@ -511,7 +511,7 @@ static uint16_t denali_nand_timing_set(struct denali_nand_info *denali) get_hynix_nand_para(denali, device_id); } - dev_info(denali->dev, + dev_dbg(denali->dev, "Dump timing register values:\n" "acc_clks: %d, re_2_we: %d, re_2_re: %d\n" "we_2_re: %d, addr_2_data: %d, rdwr_en_lo_cnt: %d\n" |