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-rw-r--r--include/linux/completion.h44
-rw-r--r--include/linux/mtd/nand.h157
-rw-r--r--include/linux/mtd/spinand.h374
-rw-r--r--include/miiphy.h15
-rw-r--r--include/spi-mem.h93
5 files changed, 583 insertions, 100 deletions
diff --git a/include/linux/completion.h b/include/linux/completion.h
index 9835826d285..d99ac450e8c 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -129,42 +129,14 @@ extern void complete_all(struct completion *);
#define wait_for_completion(x) do {} while (0)
#define wait_for_completion_io(x) do {} while (0)
-inline int wait_for_completion_interruptible(struct completion *x)
-{
- return 1;
-}
-inline int wait_for_completion_killable(struct completion *x)
-{
- return 1;
-}
-inline unsigned long wait_for_completion_timeout(struct completion *x,
- unsigned long timeout)
-{
- return 1;
-}
-inline unsigned long wait_for_completion_io_timeout(struct completion *x,
- unsigned long timeout)
-{
- return 1;
-}
-inline long wait_for_completion_interruptible_timeout(struct completion *x,
- unsigned long timeout)
-{
- return 1;
-}
-inline long wait_for_completion_killable_timeout(struct completion *x,
- unsigned long timeout)
-{
- return 1;
-}
-inline bool try_wait_for_completion(struct completion *x)
-{
- return 1;
-}
-inline bool completion_done(struct completion *x)
-{
- return 1;
-}
+#define wait_for_completion_interruptible(x) 1
+#define wait_for_completion_killable(x) 1
+#define wait_for_completion_timeout(x, timeout) 1
+#define wait_for_completion_io_timeout(x, timeout) 1
+#define wait_for_completion_interruptible_timeout(x, timeout) 1
+#define wait_for_completion_killable_timeout(x, timeout) 1
+#define try_wait_for_completion(x) 1
+#define completion_done(x) 1
#define complete(x) do {} while (0)
#define complete_all(x) do {} while (0)
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 651f8706df5..243955ac1a1 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -19,7 +19,7 @@
* @oobsize: OOB area size
* @pages_per_eraseblock: number of pages per eraseblock
* @eraseblocks_per_lun: number of eraseblocks per LUN (Logical Unit Number)
- * @max_bad_eraseblocks_per_lun: maximum number of eraseblocks per LUN
+ * @max_bad_eraseblocks_per_lun: maximum number of bad eraseblocks per LUN
* @planes_per_lun: number of planes per LUN
* @luns_per_target: number of LUN per target (target is a synonym for die)
* @ntargets: total number of targets exposed by the NAND device
@@ -81,7 +81,18 @@ struct nand_pos {
};
/**
+ * enum nand_page_io_req_type - Direction of an I/O request
+ * @NAND_PAGE_READ: from the chip, to the controller
+ * @NAND_PAGE_WRITE: from the controller, to the chip
+ */
+enum nand_page_io_req_type {
+ NAND_PAGE_READ = 0,
+ NAND_PAGE_WRITE,
+};
+
+/**
* struct nand_page_io_req - NAND I/O request object
+ * @type: the type of page I/O: read or write
* @pos: the position this I/O request is targeting
* @dataoffs: the offset within the page
* @datalen: number of data bytes to read from/write to this page
@@ -90,6 +101,8 @@ struct nand_pos {
* @ooblen: the number of OOB bytes to read from/write to this page
* @oobbuf: buffer to store OOB data in or get OOB data from
* @mode: one of the %MTD_OPS_XXX mode
+ * @continuous: no need to start over the operation at the end of each page, the
+ * NAND device will automatically prepare the next one
*
* This object is used to pass per-page I/O requests to NAND sub-layers. This
* way all useful information are already formatted in a useful way and
@@ -97,6 +110,7 @@ struct nand_pos {
* specific commands/operations.
*/
struct nand_page_io_req {
+ enum nand_page_io_req_type type;
struct nand_pos pos;
unsigned int dataoffs;
unsigned int datalen;
@@ -111,6 +125,7 @@ struct nand_page_io_req {
void *in;
} oobbuf;
int mode;
+ bool continuous;
};
/**
@@ -272,6 +287,20 @@ nanddev_pages_per_eraseblock(const struct nand_device *nand)
}
/**
+ * nanddev_pages_per_target() - Get the number of pages per target
+ * @nand: NAND device
+ *
+ * Return: the number of pages per target.
+ */
+static inline unsigned int
+nanddev_pages_per_target(const struct nand_device *nand)
+{
+ return nand->memorg.pages_per_eraseblock *
+ nand->memorg.eraseblocks_per_lun *
+ nand->memorg.luns_per_target;
+}
+
+/**
* nanddev_per_page_oobsize() - Get NAND erase block size
* @nand: NAND device
*
@@ -295,6 +324,18 @@ nanddev_eraseblocks_per_lun(const struct nand_device *nand)
}
/**
+ * nanddev_eraseblocks_per_target() - Get the number of eraseblocks per target
+ * @nand: NAND device
+ *
+ * Return: the number of eraseblocks per target.
+ */
+static inline unsigned int
+nanddev_eraseblocks_per_target(const struct nand_device *nand)
+{
+ return nand->memorg.eraseblocks_per_lun * nand->memorg.luns_per_target;
+}
+
+/**
* nanddev_target_size() - Get the total size provided by a single target/die
* @nand: NAND device
*
@@ -320,7 +361,7 @@ static inline unsigned int nanddev_ntargets(const struct nand_device *nand)
}
/**
- * nanddev_neraseblocks() - Get the total number of erasablocks
+ * nanddev_neraseblocks() - Get the total number of eraseblocks
* @nand: NAND device
*
* Return: the total number of eraseblocks exposed by @nand.
@@ -358,6 +399,29 @@ nanddev_get_memorg(struct nand_device *nand)
return &nand->memorg;
}
+/**
+ * nanddev_get_ecc_conf() - Extract the ECC configuration from a NAND device
+ * @nand: NAND device
+ */
+static inline const struct nand_ecc_req *
+nanddev_get_ecc_conf(struct nand_device *nand)
+{
+ return &nand->eccreq;
+}
+
+/**
+ * nanddev_set_ecc_requirements() - Assign the ECC requirements of a NAND
+ * device
+ * @nand: NAND device
+ * @reqs: Requirements
+ */
+static inline void
+nanddev_set_ecc_requirements(struct nand_device *nand,
+ const struct nand_ecc_req *reqs)
+{
+ nand->eccreq = *reqs;
+}
+
int nanddev_init(struct nand_device *nand, const struct nand_ops *ops,
struct module *owner);
void nanddev_cleanup(struct nand_device *nand);
@@ -603,21 +667,23 @@ static inline void nanddev_pos_next_page(struct nand_device *nand,
}
/**
- * nand_io_iter_init - Initialize a NAND I/O iterator
+ * nand_io_page_iter_init - Initialize a NAND I/O iterator
* @nand: NAND device
* @offs: absolute offset
* @req: MTD request
* @iter: NAND I/O iterator
*
* Initializes a NAND iterator based on the information passed by the MTD
- * layer.
+ * layer for page jumps.
*/
-static inline void nanddev_io_iter_init(struct nand_device *nand,
- loff_t offs, struct mtd_oob_ops *req,
- struct nand_io_iter *iter)
+static inline void nanddev_io_page_iter_init(struct nand_device *nand,
+ enum nand_page_io_req_type reqtype,
+ loff_t offs, struct mtd_oob_ops *req,
+ struct nand_io_iter *iter)
{
struct mtd_info *mtd = nanddev_to_mtd(nand);
+ iter->req.type = reqtype;
iter->req.mode = req->mode;
iter->req.dataoffs = nanddev_offs_to_pos(nand, offs, &iter->req.pos);
iter->req.ooboffs = req->ooboffs;
@@ -632,6 +698,43 @@ static inline void nanddev_io_iter_init(struct nand_device *nand,
iter->req.ooblen = min_t(unsigned int,
iter->oobbytes_per_page - iter->req.ooboffs,
iter->oobleft);
+ iter->req.continuous = false;
+}
+
+/**
+ * nand_io_block_iter_init - Initialize a NAND I/O iterator
+ * @nand: NAND device
+ * @offs: absolute offset
+ * @req: MTD request
+ * @iter: NAND I/O iterator
+ *
+ * Initializes a NAND iterator based on the information passed by the MTD
+ * layer for block jumps (no OOB)
+ *
+ * In practice only reads may leverage this iterator.
+ */
+static inline void nanddev_io_block_iter_init(struct nand_device *nand,
+ enum nand_page_io_req_type reqtype,
+ loff_t offs, struct mtd_oob_ops *req,
+ struct nand_io_iter *iter)
+{
+ unsigned int offs_in_eb;
+
+ iter->req.type = reqtype;
+ iter->req.mode = req->mode;
+ iter->req.dataoffs = nanddev_offs_to_pos(nand, offs, &iter->req.pos);
+ iter->req.ooboffs = 0;
+ iter->oobbytes_per_page = 0;
+ iter->dataleft = req->len;
+ iter->oobleft = 0;
+ iter->req.databuf.in = req->datbuf;
+ offs_in_eb = (nand->memorg.pagesize * iter->req.pos.page) + iter->req.dataoffs;
+ iter->req.datalen = min_t(unsigned int,
+ nanddev_eraseblock_size(nand) - offs_in_eb,
+ iter->dataleft);
+ iter->req.oobbuf.in = NULL;
+ iter->req.ooblen = 0;
+ iter->req.continuous = true;
}
/**
@@ -658,6 +761,25 @@ static inline void nanddev_io_iter_next_page(struct nand_device *nand,
}
/**
+ * nand_io_iter_next_block - Move to the next block
+ * @nand: NAND device
+ * @iter: NAND I/O iterator
+ *
+ * Updates the @iter to point to the next block.
+ * No OOB handling available.
+ */
+static inline void nanddev_io_iter_next_block(struct nand_device *nand,
+ struct nand_io_iter *iter)
+{
+ nanddev_pos_next_eraseblock(nand, &iter->req.pos);
+ iter->dataleft -= iter->req.datalen;
+ iter->req.databuf.in += iter->req.datalen;
+ iter->req.dataoffs = 0;
+ iter->req.datalen = min_t(unsigned int, nanddev_eraseblock_size(nand),
+ iter->dataleft);
+}
+
+/**
* nand_io_iter_end - Should end iteration or not
* @nand: NAND device
* @iter: NAND I/O iterator
@@ -685,13 +807,28 @@ static inline bool nanddev_io_iter_end(struct nand_device *nand,
* @req: MTD I/O request
* @iter: NAND I/O iterator
*
- * Should be used for iterate over pages that are contained in an MTD request.
+ * Should be used for iterating over pages that are contained in an MTD request.
*/
-#define nanddev_io_for_each_page(nand, start, req, iter) \
- for (nanddev_io_iter_init(nand, start, req, iter); \
+#define nanddev_io_for_each_page(nand, type, start, req, iter) \
+ for (nanddev_io_page_iter_init(nand, type, start, req, iter); \
!nanddev_io_iter_end(nand, iter); \
nanddev_io_iter_next_page(nand, iter))
+/**
+ * nand_io_for_each_block - Iterate over all NAND pages contained in an MTD I/O
+ * request, one block at a time
+ * @nand: NAND device
+ * @start: start address to read/write from
+ * @req: MTD I/O request
+ * @iter: NAND I/O iterator
+ *
+ * Should be used for iterating over blocks that are contained in an MTD request.
+ */
+#define nanddev_io_for_each_block(nand, type, start, req, iter) \
+ for (nanddev_io_block_iter_init(nand, type, start, req, iter); \
+ !nanddev_io_iter_end(nand, iter); \
+ nanddev_io_iter_next_block(nand, iter))
+
bool nanddev_isbad(struct nand_device *nand, const struct nand_pos *pos);
bool nanddev_isreserved(struct nand_device *nand, const struct nand_pos *pos);
int nanddev_markbad(struct nand_device *nand, const struct nand_pos *pos);
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h
index 6fe6fd520a4..cf9b9656d05 100644
--- a/include/linux/mtd/spinand.h
+++ b/include/linux/mtd/spinand.h
@@ -26,126 +26,218 @@
* Standard SPI NAND flash operations
*/
-#define SPINAND_RESET_OP \
+#define SPINAND_RESET_1S_0_0_OP \
SPI_MEM_OP(SPI_MEM_OP_CMD(0xff, 1), \
SPI_MEM_OP_NO_ADDR, \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_NO_DATA)
-#define SPINAND_WR_EN_DIS_OP(enable) \
+#define SPINAND_WR_EN_DIS_1S_0_0_OP(enable) \
SPI_MEM_OP(SPI_MEM_OP_CMD((enable) ? 0x06 : 0x04, 1), \
SPI_MEM_OP_NO_ADDR, \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_NO_DATA)
-#define SPINAND_READID_OP(naddr, ndummy, buf, len) \
+#define SPINAND_READID_1S_1S_1S_OP(naddr, ndummy, buf, len) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x9f, 1), \
SPI_MEM_OP_ADDR(naddr, 0, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
SPI_MEM_OP_DATA_IN(len, buf, 1))
-#define SPINAND_SET_FEATURE_OP(reg, valptr) \
+#define SPINAND_SET_FEATURE_1S_1S_1S_OP(reg, valptr) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x1f, 1), \
SPI_MEM_OP_ADDR(1, reg, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_DATA_OUT(1, valptr, 1))
-#define SPINAND_GET_FEATURE_OP(reg, valptr) \
+#define SPINAND_GET_FEATURE_1S_1S_1S_OP(reg, valptr) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x0f, 1), \
SPI_MEM_OP_ADDR(1, reg, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_DATA_IN(1, valptr, 1))
-#define SPINAND_BLK_ERASE_OP(addr) \
+#define SPINAND_BLK_ERASE_1S_1S_0_OP(addr) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0xd8, 1), \
SPI_MEM_OP_ADDR(3, addr, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_NO_DATA)
-#define SPINAND_PAGE_READ_OP(addr) \
+#define SPINAND_PAGE_READ_1S_1S_0_OP(addr) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x13, 1), \
SPI_MEM_OP_ADDR(3, addr, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_NO_DATA)
-#define SPINAND_PAGE_READ_FROM_CACHE_OP(fast, addr, ndummy, buf, len) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(fast ? 0x0b : 0x03, 1), \
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1S_1S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x03, 1), \
SPI_MEM_OP_ADDR(2, addr, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
- SPI_MEM_OP_DATA_IN(len, buf, 1))
+ SPI_MEM_OP_DATA_IN(len, buf, 1), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_OP_3A(fast, addr, ndummy, buf, len) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(fast ? 0x0b : 0x03, 1), \
- SPI_MEM_OP_ADDR(3, addr, 1), \
+#define SPINAND_PAGE_READ_FROM_CACHE_FAST_1S_1S_1S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x0b, 1), \
+ SPI_MEM_OP_ADDR(2, addr, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
- SPI_MEM_OP_DATA_IN(len, buf, 1))
+ SPI_MEM_OP_DATA_IN(len, buf, 1), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_X2_OP(addr, ndummy, buf, len) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(0x3b, 1), \
- SPI_MEM_OP_ADDR(2, addr, 1), \
+#define SPINAND_PAGE_READ_FROM_CACHE_3A_1S_1S_1S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x03, 1), \
+ SPI_MEM_OP_ADDR(3, addr, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
- SPI_MEM_OP_DATA_IN(len, buf, 2))
+ SPI_MEM_OP_DATA_IN(len, buf, 1), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_X2_OP_3A(addr, ndummy, buf, len) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(0x3b, 1), \
+#define SPINAND_PAGE_READ_FROM_CACHE_FAST_3A_1S_1S_1S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x0b, 1), \
SPI_MEM_OP_ADDR(3, addr, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
- SPI_MEM_OP_DATA_IN(len, buf, 2))
+ SPI_MEM_OP_DATA_IN(len, buf, 1), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_X4_OP(addr, ndummy, buf, len) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(0x6b, 1), \
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1D_1D_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x0d, 1), \
+ SPI_MEM_DTR_OP_ADDR(2, addr, 1), \
+ SPI_MEM_DTR_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_DTR_OP_DATA_IN(len, buf, 1), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1S_2S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x3b, 1), \
SPI_MEM_OP_ADDR(2, addr, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
- SPI_MEM_OP_DATA_IN(len, buf, 4))
+ SPI_MEM_OP_DATA_IN(len, buf, 2), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_X4_OP_3A(addr, ndummy, buf, len) \
- SPI_MEM_OP(SPI_MEM_OP_CMD(0x6b, 1), \
+#define SPINAND_PAGE_READ_FROM_CACHE_3A_1S_1S_2S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x3b, 1), \
SPI_MEM_OP_ADDR(3, addr, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
- SPI_MEM_OP_DATA_IN(len, buf, 4))
+ SPI_MEM_OP_DATA_IN(len, buf, 2), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(addr, ndummy, buf, len) \
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1D_2D_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x3d, 1), \
+ SPI_MEM_DTR_OP_ADDR(2, addr, 1), \
+ SPI_MEM_DTR_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_DTR_OP_DATA_IN(len, buf, 2), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_2S_2S_OP(addr, ndummy, buf, len, freq) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0xbb, 1), \
SPI_MEM_OP_ADDR(2, addr, 2), \
SPI_MEM_OP_DUMMY(ndummy, 2), \
- SPI_MEM_OP_DATA_IN(len, buf, 2))
+ SPI_MEM_OP_DATA_IN(len, buf, 2), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP_3A(addr, ndummy, buf, len) \
+#define SPINAND_PAGE_READ_FROM_CACHE_3A_1S_2S_2S_OP(addr, ndummy, buf, len, freq) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0xbb, 1), \
SPI_MEM_OP_ADDR(3, addr, 2), \
SPI_MEM_OP_DUMMY(ndummy, 2), \
- SPI_MEM_OP_DATA_IN(len, buf, 2))
+ SPI_MEM_OP_DATA_IN(len, buf, 2), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_2D_2D_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0xbd, 1), \
+ SPI_MEM_DTR_OP_ADDR(2, addr, 2), \
+ SPI_MEM_DTR_OP_DUMMY(ndummy, 2), \
+ SPI_MEM_DTR_OP_DATA_IN(len, buf, 2), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(addr, ndummy, buf, len) \
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1S_4S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x6b, 1), \
+ SPI_MEM_OP_ADDR(2, addr, 1), \
+ SPI_MEM_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_OP_DATA_IN(len, buf, 4), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_3A_1S_1S_4S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x6b, 1), \
+ SPI_MEM_OP_ADDR(3, addr, 1), \
+ SPI_MEM_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_OP_DATA_IN(len, buf, 4), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1D_4D_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x6d, 1), \
+ SPI_MEM_DTR_OP_ADDR(2, addr, 1), \
+ SPI_MEM_DTR_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_DTR_OP_DATA_IN(len, buf, 4), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_4S_4S_OP(addr, ndummy, buf, len, freq) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0xeb, 1), \
SPI_MEM_OP_ADDR(2, addr, 4), \
SPI_MEM_OP_DUMMY(ndummy, 4), \
- SPI_MEM_OP_DATA_IN(len, buf, 4))
+ SPI_MEM_OP_DATA_IN(len, buf, 4), \
+ SPI_MEM_OP_MAX_FREQ(freq))
-#define SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP_3A(addr, ndummy, buf, len) \
+#define SPINAND_PAGE_READ_FROM_CACHE_3A_1S_4S_4S_OP(addr, ndummy, buf, len, freq) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0xeb, 1), \
SPI_MEM_OP_ADDR(3, addr, 4), \
SPI_MEM_OP_DUMMY(ndummy, 4), \
- SPI_MEM_OP_DATA_IN(len, buf, 4))
-
-#define SPINAND_PROG_EXEC_OP(addr) \
+ SPI_MEM_OP_DATA_IN(len, buf, 4), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_4D_4D_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0xed, 1), \
+ SPI_MEM_DTR_OP_ADDR(2, addr, 4), \
+ SPI_MEM_DTR_OP_DUMMY(ndummy, 4), \
+ SPI_MEM_DTR_OP_DATA_IN(len, buf, 4), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1S_8S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x8b, 1), \
+ SPI_MEM_OP_ADDR(2, addr, 1), \
+ SPI_MEM_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_OP_DATA_IN(len, buf, 8), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_8S_8S_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0xcb, 1), \
+ SPI_MEM_OP_ADDR(2, addr, 8), \
+ SPI_MEM_OP_DUMMY(ndummy, 8), \
+ SPI_MEM_OP_DATA_IN(len, buf, 8), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PAGE_READ_FROM_CACHE_1S_1D_8D_OP(addr, ndummy, buf, len, freq) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x9d, 1), \
+ SPI_MEM_DTR_OP_ADDR(2, addr, 1), \
+ SPI_MEM_DTR_OP_DUMMY(ndummy, 1), \
+ SPI_MEM_DTR_OP_DATA_IN(len, buf, 8), \
+ SPI_MEM_OP_MAX_FREQ(freq))
+
+#define SPINAND_PROG_EXEC_1S_1S_0_OP(addr) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x10, 1), \
SPI_MEM_OP_ADDR(3, addr, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_NO_DATA)
-#define SPINAND_PROG_LOAD(reset, addr, buf, len) \
+#define SPINAND_PROG_LOAD_1S_1S_1S_OP(reset, addr, buf, len) \
SPI_MEM_OP(SPI_MEM_OP_CMD(reset ? 0x02 : 0x84, 1), \
SPI_MEM_OP_ADDR(2, addr, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_DATA_OUT(len, buf, 1))
-#define SPINAND_PROG_LOAD_X4(reset, addr, buf, len) \
+#define SPINAND_PROG_LOAD_1S_1S_4S_OP(reset, addr, buf, len) \
SPI_MEM_OP(SPI_MEM_OP_CMD(reset ? 0x32 : 0x34, 1), \
SPI_MEM_OP_ADDR(2, addr, 1), \
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_DATA_OUT(len, buf, 4))
+#define SPINAND_PROG_LOAD_1S_1S_8S_OP(addr, buf, len) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(0x82, 1), \
+ SPI_MEM_OP_ADDR(2, addr, 1), \
+ SPI_MEM_OP_NO_DUMMY, \
+ SPI_MEM_OP_DATA_OUT(len, buf, 8))
+
+#define SPINAND_PROG_LOAD_1S_8S_8S_OP(reset, addr, buf, len) \
+ SPI_MEM_OP(SPI_MEM_OP_CMD(reset ? 0xc2 : 0xc4, 1), \
+ SPI_MEM_OP_ADDR(2, addr, 8), \
+ SPI_MEM_OP_NO_DUMMY, \
+ SPI_MEM_OP_DATA_OUT(len, buf, 8))
+
/**
* Standard SPI NAND flash commands
*/
@@ -175,7 +267,29 @@
struct spinand_op;
struct spinand_device;
-#define SPINAND_MAX_ID_LEN 4
+#define SPINAND_MAX_ID_LEN 5
+/*
+ * For erase, write and read operation, we got the following timings :
+ * tBERS (erase) 1ms to 4ms
+ * tPROG 300us to 400us
+ * tREAD 25us to 100us
+ * In order to minimize latency, the min value is divided by 4 for the
+ * initial delay, and dividing by 20 for the poll delay.
+ * For reset, 5us/10us/500us if the device is respectively
+ * reading/programming/erasing when the RESET occurs. Since we always
+ * issue a RESET when the device is IDLE, 5us is selected for both initial
+ * and poll delay.
+ */
+#define SPINAND_READ_INITIAL_DELAY_US 6
+#define SPINAND_READ_POLL_DELAY_US 5
+#define SPINAND_RESET_INITIAL_DELAY_US 5
+#define SPINAND_RESET_POLL_DELAY_US 5
+#define SPINAND_WRITE_INITIAL_DELAY_US 75
+#define SPINAND_WRITE_POLL_DELAY_US 15
+#define SPINAND_ERASE_INITIAL_DELAY_US 250
+#define SPINAND_ERASE_POLL_DELAY_US 50
+
+#define SPINAND_WAITRDY_TIMEOUT_MS 400
/**
* struct spinand_id - SPI NAND id structure
@@ -244,13 +358,17 @@ 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 esmt_c8_spinand_manufacturer;
+extern const struct spinand_manufacturer foresee_spinand_manufacturer;
extern const struct spinand_manufacturer gigadevice_spinand_manufacturer;
extern const struct spinand_manufacturer macronix_spinand_manufacturer;
extern const struct spinand_manufacturer micron_spinand_manufacturer;
extern const struct spinand_manufacturer paragon_spinand_manufacturer;
+extern const struct spinand_manufacturer skyhigh_spinand_manufacturer;
extern const struct spinand_manufacturer toshiba_spinand_manufacturer;
extern const struct spinand_manufacturer winbond_spinand_manufacturer;
-extern const struct spinand_manufacturer esmt_c8_spinand_manufacturer;
extern const struct spinand_manufacturer xtx_spinand_manufacturer;
/**
@@ -291,8 +409,73 @@ struct spinand_ecc_info {
const struct mtd_ooblayout_ops *ooblayout;
};
-#define SPINAND_HAS_QE_BIT BIT(0)
-#define SPINAND_HAS_CR_FEAT_BIT BIT(1)
+#define SPINAND_HAS_QE_BIT BIT(0)
+#define SPINAND_HAS_CR_FEAT_BIT BIT(1)
+#define SPINAND_HAS_PROG_PLANE_SELECT_BIT BIT(2)
+#define SPINAND_HAS_READ_PLANE_SELECT_BIT BIT(3)
+#define SPINAND_NO_RAW_ACCESS BIT(4)
+
+/**
+ * struct spinand_otp_layout - structure to describe the SPI NAND OTP area
+ * @npages: number of pages in the OTP
+ * @start_page: start page of the user/factory OTP area.
+ */
+struct spinand_otp_layout {
+ unsigned int npages;
+ unsigned int start_page;
+};
+
+/**
+ * struct spinand_fact_otp_ops - SPI NAND OTP methods for factory area
+ * @info: get the OTP area information
+ * @read: read from the SPI NAND OTP area
+ */
+struct spinand_fact_otp_ops {
+ int (*info)(struct spinand_device *spinand, size_t len,
+ struct otp_info *buf, size_t *retlen);
+ int (*read)(struct spinand_device *spinand, loff_t from, size_t len,
+ size_t *retlen, u8 *buf);
+};
+
+/**
+ * struct spinand_user_otp_ops - SPI NAND OTP methods for user area
+ * @info: get the OTP area information
+ * @lock: lock an OTP region
+ * @erase: erase an OTP region
+ * @read: read from the SPI NAND OTP area
+ * @write: write to the SPI NAND OTP area
+ */
+struct spinand_user_otp_ops {
+ int (*info)(struct spinand_device *spinand, size_t len,
+ struct otp_info *buf, size_t *retlen);
+ int (*lock)(struct spinand_device *spinand, loff_t from, size_t len);
+ int (*erase)(struct spinand_device *spinand, loff_t from, size_t len);
+ int (*read)(struct spinand_device *spinand, loff_t from, size_t len,
+ size_t *retlen, u8 *buf);
+ int (*write)(struct spinand_device *spinand, loff_t from, size_t len,
+ size_t *retlen, const u8 *buf);
+};
+
+/**
+ * struct spinand_fact_otp - SPI NAND OTP grouping structure for factory area
+ * @layout: OTP region layout
+ * @ops: OTP access ops
+ */
+struct spinand_fact_otp {
+ const struct spinand_otp_layout layout;
+ const struct spinand_fact_otp_ops *ops;
+};
+
+/**
+ * struct spinand_user_otp - SPI NAND OTP grouping structure for user area
+ * @layout: OTP region layout
+ * @ops: OTP access ops
+ */
+struct spinand_user_otp {
+ const struct spinand_otp_layout layout;
+ const struct spinand_user_otp_ops *ops;
+};
+
/**
* struct spinand_info - Structure used to describe SPI NAND chips
@@ -308,6 +491,12 @@ struct spinand_ecc_info {
* @op_variants.update_cache: variants of the update-cache operation
* @select_target: function used to select a target/die. Required only for
* multi-die chips
+ * @configure_chip: Align the chip configuration with the core settings
+ * @set_cont_read: enable/disable continuous cached reads
+ * @fact_otp: SPI NAND factory OTP info.
+ * @user_otp: SPI NAND user OTP info.
+ * @read_retries: the number of read retry modes supported
+ * @set_read_retry: enable/disable read retry for data recovery
*
* Each SPI NAND manufacturer driver should have a spinand_info table
* describing all the chips supported by the driver.
@@ -326,6 +515,14 @@ struct spinand_info {
} op_variants;
int (*select_target)(struct spinand_device *spinand,
unsigned int target);
+ int (*configure_chip)(struct spinand_device *spinand);
+ int (*set_cont_read)(struct spinand_device *spinand,
+ bool enable);
+ struct spinand_fact_otp fact_otp;
+ struct spinand_user_otp user_otp;
+ unsigned int read_retries;
+ int (*set_read_retry)(struct spinand_device *spinand,
+ unsigned int read_retry);
};
#define SPINAND_ID(__method, ...) \
@@ -349,7 +546,35 @@ struct spinand_info {
}
#define SPINAND_SELECT_TARGET(__func) \
- .select_target = __func,
+ .select_target = __func
+
+#define SPINAND_CONFIGURE_CHIP(__configure_chip) \
+ .configure_chip = __configure_chip
+
+#define SPINAND_CONT_READ(__set_cont_read) \
+ .set_cont_read = __set_cont_read
+
+#define SPINAND_FACT_OTP_INFO(__npages, __start_page, __ops) \
+ .fact_otp = { \
+ .layout = { \
+ .npages = __npages, \
+ .start_page = __start_page, \
+ }, \
+ .ops = __ops, \
+ }
+
+#define SPINAND_USER_OTP_INFO(__npages, __start_page, __ops) \
+ .user_otp = { \
+ .layout = { \
+ .npages = __npages, \
+ .start_page = __start_page, \
+ }, \
+ .ops = __ops, \
+ }
+
+#define SPINAND_READ_RETRY(__read_retries, __set_read_retry) \
+ .read_retries = __read_retries, \
+ .set_read_retry = __set_read_retry
#define SPINAND_INFO(__model, __id, __memorg, __eccreq, __op_variants, \
__flags, ...) \
@@ -363,6 +588,13 @@ struct spinand_info {
__VA_ARGS__ \
}
+struct spinand_dirmap {
+ struct spi_mem_dirmap_desc *wdesc;
+ struct spi_mem_dirmap_desc *rdesc;
+ struct spi_mem_dirmap_desc *wdesc_ecc;
+ struct spi_mem_dirmap_desc *rdesc_ecc;
+};
+
/**
* struct spinand_device - SPI NAND device instance
* @base: NAND device instance
@@ -387,7 +619,20 @@ struct spinand_info {
* passed in spi_mem_op be DMA-able, so we can't based the bufs on
* the stack
* @manufacturer: SPI NAND manufacturer information
+ * @configure_chip: Align the chip configuration with the core settings
+ * @cont_read_possible: Field filled by the core once the whole system
+ * configuration is known to tell whether continuous reads are
+ * suitable to use or not in general with this chip/configuration.
+ * A per-transfer check must of course be done to ensure it is
+ * actually relevant to enable this feature.
+ * @set_cont_read: Enable/disable the continuous read feature
* @priv: manufacturer private data
+ * @fact_otp: SPI NAND factory OTP info.
+ * @user_otp: SPI NAND user OTP info.
+ * @read_retries: the number of read retry modes supported
+ * @set_read_retry: Enable/disable the read retry feature
+ * @last_wait_status: status of the last wait operation that will be used in case
+ * ->get_status() is not populated by the spinand device.
*/
struct spinand_device {
struct nand_device base;
@@ -406,6 +651,8 @@ struct spinand_device {
const struct spi_mem_op *update_cache;
} op_templates;
+ struct spinand_dirmap *dirmaps;
+
int (*select_target)(struct spinand_device *spinand,
unsigned int target);
unsigned int cur_target;
@@ -418,6 +665,20 @@ struct spinand_device {
u8 *scratchbuf;
const struct spinand_manufacturer *manufacturer;
void *priv;
+
+ u8 last_wait_status;
+
+ int (*configure_chip)(struct spinand_device *spinand);
+ bool cont_read_possible;
+ int (*set_cont_read)(struct spinand_device *spinand,
+ bool enable);
+
+ const struct spinand_fact_otp *fact_otp;
+ const struct spinand_user_otp *user_otp;
+
+ unsigned int read_retries;
+ int (*set_read_retry)(struct spinand_device *spinand,
+ unsigned int retry_mode);
};
/**
@@ -499,6 +760,31 @@ int spinand_match_and_init(struct spinand_device *spinand,
enum spinand_readid_method rdid_method);
int spinand_upd_cfg(struct spinand_device *spinand, u8 mask, u8 val);
+int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val);
+int spinand_write_reg_op(struct spinand_device *spinand, u8 reg, u8 val);
+int spinand_write_enable_op(struct spinand_device *spinand);
int spinand_select_target(struct spinand_device *spinand, unsigned int target);
+int spinand_wait(struct spinand_device *spinand, unsigned long initial_delay_us,
+ unsigned long poll_delay_us, u8 *s);
+
+int spinand_read_page(struct spinand_device *spinand,
+ const struct nand_page_io_req *req);
+
+int spinand_write_page(struct spinand_device *spinand,
+ const struct nand_page_io_req *req);
+
+size_t spinand_otp_page_size(struct spinand_device *spinand);
+size_t spinand_fact_otp_size(struct spinand_device *spinand);
+size_t spinand_user_otp_size(struct spinand_device *spinand);
+
+int spinand_fact_otp_read(struct spinand_device *spinand, loff_t ofs,
+ size_t len, size_t *retlen, u8 *buf);
+int spinand_user_otp_read(struct spinand_device *spinand, loff_t ofs,
+ size_t len, size_t *retlen, u8 *buf);
+int spinand_user_otp_write(struct spinand_device *spinand, loff_t ofs,
+ size_t len, size_t *retlen, const u8 *buf);
+
+int spinand_set_mtd_otp_ops(struct spinand_device *spinand);
+
#endif /* __LINUX_MTD_SPINAND_H */
diff --git a/include/miiphy.h b/include/miiphy.h
index 00d0b9b6a43..96afe5f4030 100644
--- a/include/miiphy.h
+++ b/include/miiphy.h
@@ -193,6 +193,21 @@ struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
phy_interface_t interface);
/**
+ * dm_eth_phy_connect_interface - Connect an Eth device to a PHY based on device
+ * tree with custom PHY interface
+ *
+ * Picks up the DT phy-handle and from ethernet device node and connects the
+ * ethernet device to the linked PHY, while allowing the caller to specify
+ * the phy-mode to use.
+ *
+ * @ethdev: ethernet device
+ * @interface: MAC-PHY protocol
+ *
+ * Return: pointer to phy_device, or 0 on error
+ */
+struct phy_device *dm_eth_phy_connect_interface(struct udevice *ethdev,
+ phy_interface_t interface);
+/**
* dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
*
* Picks up the DT phy-handle and phy-mode from ethernet device node and
diff --git a/include/spi-mem.h b/include/spi-mem.h
index 2eb05a2e5bc..36281a62f77 100644
--- a/include/spi-mem.h
+++ b/include/spi-mem.h
@@ -17,16 +17,32 @@ struct udevice;
#define SPI_MEM_OP_CMD(__opcode, __buswidth) \
{ \
+ .nbytes = 1, \
.buswidth = __buswidth, \
.opcode = __opcode, \
+ }
+
+#define SPI_MEM_DTR_OP_CMD(__opcode, __buswidth) \
+ { \
.nbytes = 1, \
+ .opcode = __opcode, \
+ .buswidth = __buswidth, \
+ .dtr = true, \
}
#define SPI_MEM_OP_ADDR(__nbytes, __val, __buswidth) \
{ \
.nbytes = __nbytes, \
+ .buswidth = __buswidth, \
+ .val = __val, \
+ }
+
+#define SPI_MEM_DTR_OP_ADDR(__nbytes, __val, __buswidth) \
+ { \
+ .nbytes = __nbytes, \
.val = __val, \
.buswidth = __buswidth, \
+ .dtr = true, \
}
#define SPI_MEM_OP_NO_ADDR { }
@@ -37,22 +53,47 @@ struct udevice;
.buswidth = __buswidth, \
}
+#define SPI_MEM_DTR_OP_DUMMY(__nbytes, __buswidth) \
+ { \
+ .nbytes = __nbytes, \
+ .buswidth = __buswidth, \
+ .dtr = true, \
+ }
+
#define SPI_MEM_OP_NO_DUMMY { }
#define SPI_MEM_OP_DATA_IN(__nbytes, __buf, __buswidth) \
{ \
+ .buswidth = __buswidth, \
+ .dir = SPI_MEM_DATA_IN, \
+ .nbytes = __nbytes, \
+ .buf.in = __buf, \
+ }
+
+#define SPI_MEM_DTR_OP_DATA_IN(__nbytes, __buf, __buswidth) \
+ { \
.dir = SPI_MEM_DATA_IN, \
.nbytes = __nbytes, \
.buf.in = __buf, \
.buswidth = __buswidth, \
+ .dtr = true, \
}
#define SPI_MEM_OP_DATA_OUT(__nbytes, __buf, __buswidth) \
{ \
+ .buswidth = __buswidth, \
+ .dir = SPI_MEM_DATA_OUT, \
+ .nbytes = __nbytes, \
+ .buf.out = __buf, \
+ }
+
+#define SPI_MEM_DTR_OP_DATA_OUT(__nbytes, __buf, __buswidth) \
+ { \
.dir = SPI_MEM_DATA_OUT, \
.nbytes = __nbytes, \
.buf.out = __buf, \
.buswidth = __buswidth, \
+ .dtr = true, \
}
#define SPI_MEM_OP_NO_DATA { }
@@ -62,7 +103,7 @@ struct udevice;
* transfer from the controller perspective
* @SPI_MEM_NO_DATA: no data transferred
* @SPI_MEM_DATA_IN: data coming from the SPI memory
- * @SPI_MEM_DATA_OUT: data sent the SPI memory
+ * @SPI_MEM_DATA_OUT: data sent to the SPI memory
*/
enum spi_mem_data_dir {
SPI_MEM_NO_DATA,
@@ -70,6 +111,9 @@ enum spi_mem_data_dir {
SPI_MEM_DATA_OUT,
};
+#define SPI_MEM_OP_MAX_FREQ(__freq) \
+ .max_freq = __freq
+
/**
* struct spi_mem_op - describes a SPI memory operation
* @cmd.nbytes: number of opcode bytes (only 1 or 2 are valid). The opcode is
@@ -80,26 +124,35 @@ enum spi_mem_data_dir {
* @addr.nbytes: number of address bytes to send. Can be zero if the operation
* does not need to send an address
* @addr.buswidth: number of IO lines used to transmit the address cycles
+ * @addr.dtr: whether the address should be sent in DTR mode or not
* @addr.val: address value. This value is always sent MSB first on the bus.
* Note that only @addr.nbytes are taken into account in this
* address value, so users should make sure the value fits in the
* assigned number of bytes.
- * @addr.dtr: whether the address should be sent in DTR mode or not
* @dummy.nbytes: number of dummy bytes to send after an opcode or address. Can
* be zero if the operation does not require dummy bytes
* @dummy.buswidth: number of IO lanes used to transmit the dummy bytes
* @dummy.dtr: whether the dummy bytes should be sent in DTR mode or not
* @data.buswidth: number of IO lanes used to send/receive the data
* @data.dtr: whether the data should be sent in DTR mode or not
+ * @data.ecc: whether error correction is required or not
+ * @data.swap16: whether the byte order of 16-bit words is swapped when read
+ * or written in Octal DTR mode compared to STR mode.
* @data.dir: direction of the transfer
- * @data.buf.in: input buffer
- * @data.buf.out: output buffer
+ * @data.nbytes: number of data bytes to send/receive. Can be zero if the
+ * operation does not involve transferring data
+ * @data.buf.in: input buffer (must be DMA-able)
+ * @data.buf.out: output buffer (must be DMA-able)
+ * @max_freq: frequency limitation wrt this operation. 0 means there is no
+ * specific constraint and the highest achievable frequency can be
+ * attempted.
*/
struct spi_mem_op {
struct {
u8 nbytes;
u8 buswidth;
u8 dtr : 1;
+ u8 __pad : 7;
u16 opcode;
} cmd;
@@ -107,6 +160,7 @@ struct spi_mem_op {
u8 nbytes;
u8 buswidth;
u8 dtr : 1;
+ u8 __pad : 7;
u64 val;
} addr;
@@ -114,28 +168,35 @@ struct spi_mem_op {
u8 nbytes;
u8 buswidth;
u8 dtr : 1;
+ u8 __pad : 7;
} dummy;
struct {
u8 buswidth;
u8 dtr : 1;
+ u8 ecc : 1;
+ u8 swap16 : 1;
+ u8 __pad : 5;
enum spi_mem_data_dir dir;
unsigned int nbytes;
- /* buf.{in,out} must be DMA-able. */
union {
void *in;
const void *out;
} buf;
} data;
+
+ unsigned int max_freq;
};
-#define SPI_MEM_OP(__cmd, __addr, __dummy, __data) \
+#define SPI_MEM_OP(__cmd, __addr, __dummy, __data, ...) \
{ \
.cmd = __cmd, \
.addr = __addr, \
.dummy = __dummy, \
.data = __data, \
+ __VA_ARGS__ \
}
+
/**
* struct spi_mem_dirmap_info - Direct mapping information
* @op_tmpl: operation template that should be used by the direct mapping when
@@ -143,7 +204,7 @@ struct spi_mem_op {
* @offset: absolute offset this direct mapping is pointing to
* @length: length in byte of this direct mapping
*
- * This information is used by the controller specific implementation to know
+ * These information are used by the controller specific implementation to know
* the portion of memory that is directly mapped and the spi_mem_op that should
* be used to access the device.
* A direct mapping is only valid for one direction (read or write) and this
@@ -223,10 +284,12 @@ static inline void *spi_mem_get_drvdata(struct spi_mem *mem)
/**
* struct spi_controller_mem_ops - SPI memory operations
* @adjust_op_size: shrink the data xfer of an operation to match controller's
- * limitations (can be alignment of max RX/TX size
+ * limitations (can be alignment or max RX/TX size
* limitations)
* @supports_op: check if an operation is supported by the controller
* @exec_op: execute a SPI memory operation
+ * not all driver provides supports_op(), so it can return -EOPNOTSUPP
+ * if the op is not supported by the driver/controller
* @dirmap_create: create a direct mapping descriptor that can later be used to
* access the memory device. This method is optional
* @dirmap_destroy: destroy a memory descriptor previous created by
@@ -300,13 +363,16 @@ int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
const struct spi_mem_op *op,
struct sg_table *sg);
+
+bool spi_mem_default_supports_op(struct spi_mem *mem,
+ const struct spi_mem_op *op);
#else
static inline int
spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
const struct spi_mem_op *op,
struct sg_table *sg)
{
- return -ENOSYS;
+ return -ENOTSUPP;
}
static inline void
@@ -315,10 +381,18 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
struct sg_table *sg)
{
}
+
+static inline
+bool spi_mem_default_supports_op(struct spi_mem *mem,
+ const struct spi_mem_op *op)
+{
+ return false;
+}
#endif /* CONFIG_SPI_MEM */
#endif /* __UBOOT__ */
int spi_mem_adjust_op_size(struct spi_slave *slave, struct spi_mem_op *op);
+u64 spi_mem_calc_op_duration(struct spi_mem_op *op);
bool spi_mem_supports_op(struct spi_slave *slave, const struct spi_mem_op *op);
bool spi_mem_dtr_supports_op(struct spi_slave *slave,
@@ -337,7 +411,6 @@ ssize_t spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc,
u64 offs, size_t len, void *buf);
ssize_t spi_mem_dirmap_write(struct spi_mem_dirmap_desc *desc,
u64 offs, size_t len, const void *buf);
-
#ifndef __UBOOT__
int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv,
struct module *owner);