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authorHuang Shijie <b32955@freescale.com>2012-09-13 14:57:52 +0800
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-09-29 15:54:19 +0100
commit7db03eccfc23783a95dd78383b3fad55224aaa7b (patch)
tree5d9c827c7e61ad862c270ced408f0c3b2529bc27 /include/linux/mtd
parent2caf87a49eb53fac266b1271ebd6c1d1daa0d0d0 (diff)
downloadop-kernel-dev-7db03eccfc23783a95dd78383b3fad55224aaa7b.zip
op-kernel-dev-7db03eccfc23783a95dd78383b3fad55224aaa7b.tar.gz
mtd: add helpers to set/get features for ONFI nand
Add the set-features(0xef)/get-features(0xee) helpers for ONFI nand. Also add the necessary macros. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/nand.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index d245199..922f313 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -92,6 +92,8 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
#define NAND_CMD_READID 0x90
#define NAND_CMD_ERASE2 0xd0
#define NAND_CMD_PARAM 0xec
+#define NAND_CMD_GET_FEATURES 0xee
+#define NAND_CMD_SET_FEATURES 0xef
#define NAND_CMD_RESET 0xff
#define NAND_CMD_LOCK 0x2a
@@ -229,6 +231,12 @@ typedef enum {
/* Keep gcc happy */
struct nand_chip;
+/* ONFI feature address */
+#define ONFI_FEATURE_ADDR_TIMING_MODE 0x1
+
+/* ONFI subfeature parameters length */
+#define ONFI_SUBFEATURE_PARAM_LEN 4
+
struct nand_onfi_params {
/* rev info and features block */
/* 'O' 'N' 'F' 'I' */
@@ -454,6 +462,8 @@ struct nand_buffers {
* non 0 if ONFI supported.
* @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is
* supported, 0 otherwise.
+ * @onfi_set_features [REPLACEABLE] set the features for ONFI nand
+ * @onfi_get_features [REPLACEABLE] get the features for ONFI nand
* @ecclayout: [REPLACEABLE] the default ECC placement scheme
* @bbt: [INTERN] bad block table pointer
* @bbt_td: [REPLACEABLE] bad block table descriptor for flash
@@ -496,6 +506,10 @@ struct nand_chip {
int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required, int page,
int cached, int raw);
+ int (*onfi_set_features)(struct mtd_info *mtd, struct nand_chip *chip,
+ int feature_addr, uint8_t *subfeature_para);
+ int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip,
+ int feature_addr, uint8_t *subfeature_para);
int chip_delay;
unsigned int options;
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