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Diffstat (limited to 'include/linux/mtd/rawnand.h')
-rw-r--r--include/linux/mtd/rawnand.h106
1 files changed, 60 insertions, 46 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 56c5570..5dad59b 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -21,6 +21,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/flashchip.h>
#include <linux/mtd/bbm.h>
+#include <linux/types.h>
struct mtd_info;
struct nand_flash_dev;
@@ -235,7 +236,8 @@ struct nand_chip;
#define ONFI_TIMING_MODE_5 (1 << 5)
#define ONFI_TIMING_MODE_UNKNOWN (1 << 6)
-/* ONFI feature address */
+/* ONFI feature number/address */
+#define ONFI_FEATURE_NUMBER 256
#define ONFI_FEATURE_ADDR_TIMING_MODE 0x1
/* Vendor-specific feature address (Micron) */
@@ -429,6 +431,47 @@ struct nand_jedec_params {
__le16 crc;
} __packed;
+/**
+ * struct onfi_params - ONFI specific parameters that will be reused
+ * @version: ONFI version (BCD encoded), 0 if ONFI is not supported
+ * @tPROG: Page program time
+ * @tBERS: Block erase time
+ * @tR: Page read time
+ * @tCCS: Change column setup time
+ * @async_timing_mode: Supported asynchronous timing mode
+ * @vendor_revision: Vendor specific revision number
+ * @vendor: Vendor specific data
+ */
+struct onfi_params {
+ int version;
+ u16 tPROG;
+ u16 tBERS;
+ u16 tR;
+ u16 tCCS;
+ u16 async_timing_mode;
+ u16 vendor_revision;
+ u8 vendor[88];
+};
+
+/**
+ * struct nand_parameters - NAND generic parameters from the parameter page
+ * @model: Model name
+ * @supports_set_get_features: The NAND chip supports setting/getting features
+ * @set_feature_list: Bitmap of features that can be set
+ * @get_feature_list: Bitmap of features that can be get
+ * @onfi: ONFI specific parameters
+ */
+struct nand_parameters {
+ /* Generic parameters */
+ char model[100];
+ bool supports_set_get_features;
+ DECLARE_BITMAP(set_feature_list, ONFI_FEATURE_NUMBER);
+ DECLARE_BITMAP(get_feature_list, ONFI_FEATURE_NUMBER);
+
+ /* ONFI parameters */
+ struct onfi_params onfi;
+};
+
/* The maximum expected count of bytes in the NAND ID sequence */
#define NAND_MAX_ID_LEN 8
@@ -1157,21 +1200,15 @@ int nand_op_parser_exec_op(struct nand_chip *chip,
* currently in data_buf.
* @subpagesize: [INTERN] holds the subpagesize
* @id: [INTERN] holds NAND ID
- * @onfi_version: [INTERN] holds the chip ONFI version (BCD encoded),
- * non 0 if ONFI supported.
- * @jedec_version: [INTERN] holds the chip JEDEC version (BCD encoded),
- * non 0 if JEDEC supported.
- * @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is
- * supported, 0 otherwise.
- * @jedec_params: [INTERN] holds the JEDEC parameter page when JEDEC is
- * supported, 0 otherwise.
+ * @parameters: [INTERN] holds generic parameters under an easily
+ * readable form.
* @max_bb_per_die: [INTERN] the max number of bad blocks each die of a
* this nand device will encounter their life times.
* @blocks_per_die: [INTERN] The number of PEBs in a die
* @data_interface: [INTERN] NAND interface timing information
* @read_retries: [INTERN] the number of read retry modes supported
- * @onfi_set_features: [REPLACEABLE] set the features for ONFI nand
- * @onfi_get_features: [REPLACEABLE] get the features for ONFI nand
+ * @set_features: [REPLACEABLE] set the NAND chip features
+ * @get_features: [REPLACEABLE] get the NAND chip features
* @setup_data_interface: [OPTIONAL] setup the data interface and timing. If
* chipnr is set to %NAND_DATA_IFACE_CHECK_ONLY this
* means the configuration should not be applied but
@@ -1212,10 +1249,10 @@ struct nand_chip {
bool check_only);
int (*erase)(struct mtd_info *mtd, int page);
int (*scan_bbt)(struct mtd_info *mtd);
- 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 (*set_features)(struct mtd_info *mtd, struct nand_chip *chip,
+ int feature_addr, uint8_t *subfeature_para);
+ int (*get_features)(struct mtd_info *mtd, struct nand_chip *chip,
+ int feature_addr, uint8_t *subfeature_para);
int (*setup_read_retry)(struct mtd_info *mtd, int retry_mode);
int (*setup_data_interface)(struct mtd_info *mtd, int chipnr,
const struct nand_data_interface *conf);
@@ -1243,12 +1280,7 @@ struct nand_chip {
int badblockbits;
struct nand_id id;
- int onfi_version;
- int jedec_version;
- union {
- struct nand_onfi_params onfi_params;
- struct nand_jedec_params jedec_params;
- };
+ struct nand_parameters parameters;
u16 max_bb_per_die;
u32 blocks_per_die;
@@ -1535,26 +1567,13 @@ struct platform_nand_data {
struct platform_nand_ctrl ctrl;
};
-/* return the supported features. */
-static inline int onfi_feature(struct nand_chip *chip)
-{
- return chip->onfi_version ? le16_to_cpu(chip->onfi_params.features) : 0;
-}
-
/* return the supported asynchronous timing mode. */
static inline int onfi_get_async_timing_mode(struct nand_chip *chip)
{
- if (!chip->onfi_version)
+ if (!chip->parameters.onfi.version)
return ONFI_TIMING_MODE_UNKNOWN;
- return le16_to_cpu(chip->onfi_params.async_timing_mode);
-}
-/* return the supported synchronous timing mode. */
-static inline int onfi_get_sync_timing_mode(struct nand_chip *chip)
-{
- if (!chip->onfi_version)
- return ONFI_TIMING_MODE_UNKNOWN;
- return le16_to_cpu(chip->onfi_params.src_sync_timing_mode);
+ return chip->parameters.onfi.async_timing_mode;
}
int onfi_fill_data_interface(struct nand_chip *chip,
@@ -1591,13 +1610,6 @@ static inline int nand_opcode_8bits(unsigned int command)
return 0;
}
-/* return the supported JEDEC features. */
-static inline int jedec_feature(struct nand_chip *chip)
-{
- return chip->jedec_version ? le16_to_cpu(chip->jedec_params.features)
- : 0;
-}
-
/* get timing characteristics from ONFI timing mode. */
const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode);
@@ -1629,10 +1641,12 @@ int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page);
int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
int page);
+/* Wrapper to use in order for controllers/vendors to GET/SET FEATURES */
+int nand_get_features(struct nand_chip *chip, int addr, u8 *subfeature_param);
+int nand_set_features(struct nand_chip *chip, int addr, u8 *subfeature_param);
/* Stub used by drivers that do not support GET/SET FEATURES operations */
-int nand_onfi_get_set_features_notsupp(struct mtd_info *mtd,
- struct nand_chip *chip, int addr,
- u8 *subfeature_param);
+int nand_get_set_features_notsupp(struct mtd_info *mtd, struct nand_chip *chip,
+ int addr, u8 *subfeature_param);
/* Default read_page_raw implementation */
int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
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