summaryrefslogtreecommitdiff
path: root/drivers/mtd
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/nand_base.c20
-rw-r--r--drivers/mtd/nand/raw/nand_jedec.c3
-rw-r--r--drivers/mtd/nand/raw/nand_onfi.c3
3 files changed, 22 insertions, 4 deletions
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index c3cc66039925..7b87e2e70484 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -4991,6 +4991,24 @@ nand_manufacturer_name(const struct nand_manufacturer_desc *manufacturer_desc)
return manufacturer_desc ? manufacturer_desc->name : "Unknown";
}
+static void rawnand_check_data_only_read_support(struct nand_chip *chip)
+{
+ /* Use an arbitrary size for the check */
+ if (!nand_read_data_op(chip, NULL, SZ_512, true, true))
+ chip->controller->supported_op.data_only_read = 1;
+}
+
+static void rawnand_early_check_supported_ops(struct nand_chip *chip)
+{
+ /* The supported_op fields should not be set by individual drivers */
+ WARN_ON_ONCE(chip->controller->supported_op.data_only_read);
+
+ if (!nand_has_exec_op(chip))
+ return;
+
+ rawnand_check_data_only_read_support(chip);
+}
+
/*
* Get the flash and manufacturer id and lookup if the type is supported.
*/
@@ -5023,6 +5041,8 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type)
/* Select the device */
nand_select_target(chip, 0);
+ rawnand_early_check_supported_ops(chip);
+
/* Send the command for reading device ID */
ret = nand_readid_op(chip, 0, id_data, 2);
if (ret)
diff --git a/drivers/mtd/nand/raw/nand_jedec.c b/drivers/mtd/nand/raw/nand_jedec.c
index 85b6d9372d80..836757717660 100644
--- a/drivers/mtd/nand/raw/nand_jedec.c
+++ b/drivers/mtd/nand/raw/nand_jedec.c
@@ -46,8 +46,7 @@ int nand_jedec_detect(struct nand_chip *chip)
if (!p)
return -ENOMEM;
- if (!nand_has_exec_op(chip) ||
- !nand_read_data_op(chip, p, sizeof(*p), true, true))
+ if (!nand_has_exec_op(chip) || chip->controller->supported_op.data_only_read)
use_datain = true;
for (i = 0; i < JEDEC_PARAM_PAGES; i++) {
diff --git a/drivers/mtd/nand/raw/nand_onfi.c b/drivers/mtd/nand/raw/nand_onfi.c
index 7586befce7f9..f15ef90aec8c 100644
--- a/drivers/mtd/nand/raw/nand_onfi.c
+++ b/drivers/mtd/nand/raw/nand_onfi.c
@@ -166,8 +166,7 @@ int nand_onfi_detect(struct nand_chip *chip)
if (!pbuf)
return -ENOMEM;
- if (!nand_has_exec_op(chip) ||
- !nand_read_data_op(chip, &pbuf[0], sizeof(*pbuf), true, true))
+ if (!nand_has_exec_op(chip) || chip->controller->supported_op.data_only_read)
use_datain = true;
for (i = 0; i < ONFI_PARAM_PAGES; i++) {