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-rw-r--r--include/linux/mtd/rawnand.h21
-rw-r--r--include/linux/mtd/spinand.h1
2 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index dcf90144d70b..f8d4be9c587a 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -67,6 +67,8 @@ struct gpio_desc;
/* Extended commands for large page devices */
#define NAND_CMD_READSTART 0x30
+#define NAND_CMD_READCACHESEQ 0x31
+#define NAND_CMD_READCACHEEND 0x3f
#define NAND_CMD_RNDOUTSTART 0xE0
#define NAND_CMD_CACHEDPROG 0x15
@@ -1094,10 +1096,20 @@ struct nand_controller_ops {
*
* @lock: lock used to serialize accesses to the NAND controller
* @ops: NAND controller operations.
+ * @supported_op: NAND controller known-to-be-supported operations,
+ * only writable by the core after initial checking.
+ * @supported_op.data_only_read: The controller supports reading more data from
+ * the bus without restarting an entire read operation nor
+ * changing the column.
+ * @supported_op.cont_read: The controller supports sequential cache reads.
*/
struct nand_controller {
struct mutex lock;
const struct nand_controller_ops *ops;
+ struct {
+ unsigned int data_only_read: 1;
+ unsigned int cont_read: 1;
+ } supported_op;
};
static inline void nand_controller_init(struct nand_controller *nfc)
@@ -1248,6 +1260,10 @@ struct nand_secure_region {
* @read_retries: The number of read retry modes supported
* @secure_regions: Structure containing the secure regions info
* @nr_secure_regions: Number of secure regions
+ * @cont_read: Sequential page read internals
+ * @cont_read.ongoing: Whether a continuous read is ongoing or not
+ * @cont_read.first_page: Start of the continuous read operation
+ * @cont_read.last_page: End of the continuous read operation
* @controller: The hardware controller structure which is shared among multiple
* independent devices
* @ecc: The ECC controller structure
@@ -1300,6 +1316,11 @@ struct nand_chip {
int read_retries;
struct nand_secure_region *secure_regions;
u8 nr_secure_regions;
+ struct {
+ bool ongoing;
+ unsigned int first_page;
+ unsigned int last_page;
+ } cont_read;
/* Externals */
struct nand_controller *controller;
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index 6d3392a7edc6..01be9f0f008a 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -260,6 +260,7 @@ struct spinand_manufacturer {
};
/* SPI NAND manufacturers */
+extern const struct spinand_manufacturer alliancememory_spinand_manufacturer;
extern const struct spinand_manufacturer ato_spinand_manufacturer;
extern const struct spinand_manufacturer gigadevice_spinand_manufacturer;
extern const struct spinand_manufacturer macronix_spinand_manufacturer;