[PATCH 3/7] mtd: nand: convert ONFI mode into data interface
Sascha Hauer
s.hauer at pengutronix.de
Tue Sep 6 03:39:11 PDT 2016
struct nand_data_interface is the designated type to pass to
the NAND drivers to configure the timing. To simplify this introduce
onfi_async_timing_mode_to_data_interface() to convert a ONFI
mode into a nand_data_interface.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/mtd/nand/nand_timings.c | 444 +++++++++++++++++++++-------------------
include/linux/mtd/nand.h | 2 +
2 files changed, 240 insertions(+), 206 deletions(-)
diff --git a/drivers/mtd/nand/nand_timings.c b/drivers/mtd/nand/nand_timings.c
index e81470a..260b074 100644
--- a/drivers/mtd/nand/nand_timings.c
+++ b/drivers/mtd/nand/nand_timings.c
@@ -13,228 +13,246 @@
#include <linux/export.h>
#include <linux/mtd/nand.h>
-static const struct nand_sdr_timings onfi_sdr_timings[] = {
+static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 0 */
{
- .tADL_min = 200000,
- .tALH_min = 20000,
- .tALS_min = 50000,
- .tAR_min = 25000,
- .tCEA_max = 100000,
- .tCEH_min = 20000,
- .tCH_min = 20000,
- .tCHZ_max = 100000,
- .tCLH_min = 20000,
- .tCLR_min = 20000,
- .tCLS_min = 50000,
- .tCOH_min = 0,
- .tCS_min = 70000,
- .tDH_min = 20000,
- .tDS_min = 40000,
- .tFEAT_max = 1000000,
- .tIR_min = 10000,
- .tITC_max = 1000000,
- .tRC_min = 100000,
- .tREA_max = 40000,
- .tREH_min = 30000,
- .tRHOH_min = 0,
- .tRHW_min = 200000,
- .tRHZ_max = 200000,
- .tRLOH_min = 0,
- .tRP_min = 50000,
- .tRST_max = 250000000000ULL,
- .tWB_max = 200000,
- .tRR_min = 40000,
- .tWC_min = 100000,
- .tWH_min = 30000,
- .tWHR_min = 120000,
- .tWP_min = 50000,
- .tWW_min = 100000,
+ .type = NAND_SDR_IFACE,
+ .timings.sdr = {
+ .tADL_min = 200000,
+ .tALH_min = 20000,
+ .tALS_min = 50000,
+ .tAR_min = 25000,
+ .tCEA_max = 100000,
+ .tCEH_min = 20000,
+ .tCH_min = 20000,
+ .tCHZ_max = 100000,
+ .tCLH_min = 20000,
+ .tCLR_min = 20000,
+ .tCLS_min = 50000,
+ .tCOH_min = 0,
+ .tCS_min = 70000,
+ .tDH_min = 20000,
+ .tDS_min = 40000,
+ .tFEAT_max = 1000000,
+ .tIR_min = 10000,
+ .tITC_max = 1000000,
+ .tRC_min = 100000,
+ .tREA_max = 40000,
+ .tREH_min = 30000,
+ .tRHOH_min = 0,
+ .tRHW_min = 200000,
+ .tRHZ_max = 200000,
+ .tRLOH_min = 0,
+ .tRP_min = 50000,
+ .tRST_max = 250000000000ULL,
+ .tWB_max = 200000,
+ .tRR_min = 40000,
+ .tWC_min = 100000,
+ .tWH_min = 30000,
+ .tWHR_min = 120000,
+ .tWP_min = 50000,
+ .tWW_min = 100000,
+ },
},
/* Mode 1 */
{
- .tADL_min = 100000,
- .tALH_min = 10000,
- .tALS_min = 25000,
- .tAR_min = 10000,
- .tCEA_max = 45000,
- .tCEH_min = 20000,
- .tCH_min = 10000,
- .tCHZ_max = 50000,
- .tCLH_min = 10000,
- .tCLR_min = 10000,
- .tCLS_min = 25000,
- .tCOH_min = 15000,
- .tCS_min = 35000,
- .tDH_min = 10000,
- .tDS_min = 20000,
- .tFEAT_max = 1000000,
- .tIR_min = 0,
- .tITC_max = 1000000,
- .tRC_min = 50000,
- .tREA_max = 30000,
- .tREH_min = 15000,
- .tRHOH_min = 15000,
- .tRHW_min = 100000,
- .tRHZ_max = 100000,
- .tRLOH_min = 0,
- .tRP_min = 25000,
- .tRR_min = 20000,
- .tRST_max = 500000000,
- .tWB_max = 100000,
- .tWC_min = 45000,
- .tWH_min = 15000,
- .tWHR_min = 80000,
- .tWP_min = 25000,
- .tWW_min = 100000,
+ .type = NAND_SDR_IFACE,
+ .timings.sdr = {
+ .tADL_min = 100000,
+ .tALH_min = 10000,
+ .tALS_min = 25000,
+ .tAR_min = 10000,
+ .tCEA_max = 45000,
+ .tCEH_min = 20000,
+ .tCH_min = 10000,
+ .tCHZ_max = 50000,
+ .tCLH_min = 10000,
+ .tCLR_min = 10000,
+ .tCLS_min = 25000,
+ .tCOH_min = 15000,
+ .tCS_min = 35000,
+ .tDH_min = 10000,
+ .tDS_min = 20000,
+ .tFEAT_max = 1000000,
+ .tIR_min = 0,
+ .tITC_max = 1000000,
+ .tRC_min = 50000,
+ .tREA_max = 30000,
+ .tREH_min = 15000,
+ .tRHOH_min = 15000,
+ .tRHW_min = 100000,
+ .tRHZ_max = 100000,
+ .tRLOH_min = 0,
+ .tRP_min = 25000,
+ .tRR_min = 20000,
+ .tRST_max = 500000000,
+ .tWB_max = 100000,
+ .tWC_min = 45000,
+ .tWH_min = 15000,
+ .tWHR_min = 80000,
+ .tWP_min = 25000,
+ .tWW_min = 100000,
+ },
},
/* Mode 2 */
{
- .tADL_min = 100000,
- .tALH_min = 10000,
- .tALS_min = 15000,
- .tAR_min = 10000,
- .tCEA_max = 30000,
- .tCEH_min = 20000,
- .tCH_min = 10000,
- .tCHZ_max = 50000,
- .tCLH_min = 10000,
- .tCLR_min = 10000,
- .tCLS_min = 15000,
- .tCOH_min = 15000,
- .tCS_min = 25000,
- .tDH_min = 5000,
- .tDS_min = 15000,
- .tFEAT_max = 1000000,
- .tIR_min = 0,
- .tITC_max = 1000000,
- .tRC_min = 35000,
- .tREA_max = 25000,
- .tREH_min = 15000,
- .tRHOH_min = 15000,
- .tRHW_min = 100000,
- .tRHZ_max = 100000,
- .tRLOH_min = 0,
- .tRR_min = 20000,
- .tRST_max = 500000000,
- .tWB_max = 100000,
- .tRP_min = 17000,
- .tWC_min = 35000,
- .tWH_min = 15000,
- .tWHR_min = 80000,
- .tWP_min = 17000,
- .tWW_min = 100000,
+ .type = NAND_SDR_IFACE,
+ .timings.sdr = {
+ .tADL_min = 100000,
+ .tALH_min = 10000,
+ .tALS_min = 15000,
+ .tAR_min = 10000,
+ .tCEA_max = 30000,
+ .tCEH_min = 20000,
+ .tCH_min = 10000,
+ .tCHZ_max = 50000,
+ .tCLH_min = 10000,
+ .tCLR_min = 10000,
+ .tCLS_min = 15000,
+ .tCOH_min = 15000,
+ .tCS_min = 25000,
+ .tDH_min = 5000,
+ .tDS_min = 15000,
+ .tFEAT_max = 1000000,
+ .tIR_min = 0,
+ .tITC_max = 1000000,
+ .tRC_min = 35000,
+ .tREA_max = 25000,
+ .tREH_min = 15000,
+ .tRHOH_min = 15000,
+ .tRHW_min = 100000,
+ .tRHZ_max = 100000,
+ .tRLOH_min = 0,
+ .tRR_min = 20000,
+ .tRST_max = 500000000,
+ .tWB_max = 100000,
+ .tRP_min = 17000,
+ .tWC_min = 35000,
+ .tWH_min = 15000,
+ .tWHR_min = 80000,
+ .tWP_min = 17000,
+ .tWW_min = 100000,
+ },
},
/* Mode 3 */
{
- .tADL_min = 100000,
- .tALH_min = 5000,
- .tALS_min = 10000,
- .tAR_min = 10000,
- .tCEA_max = 25000,
- .tCEH_min = 20000,
- .tCH_min = 5000,
- .tCHZ_max = 50000,
- .tCLH_min = 5000,
- .tCLR_min = 10000,
- .tCLS_min = 10000,
- .tCOH_min = 15000,
- .tCS_min = 25000,
- .tDH_min = 5000,
- .tDS_min = 10000,
- .tFEAT_max = 1000000,
- .tIR_min = 0,
- .tITC_max = 1000000,
- .tRC_min = 30000,
- .tREA_max = 20000,
- .tREH_min = 10000,
- .tRHOH_min = 15000,
- .tRHW_min = 100000,
- .tRHZ_max = 100000,
- .tRLOH_min = 0,
- .tRP_min = 15000,
- .tRR_min = 20000,
- .tRST_max = 500000000,
- .tWB_max = 100000,
- .tWC_min = 30000,
- .tWH_min = 10000,
- .tWHR_min = 80000,
- .tWP_min = 15000,
- .tWW_min = 100000,
+ .type = NAND_SDR_IFACE,
+ .timings.sdr = {
+ .tADL_min = 100000,
+ .tALH_min = 5000,
+ .tALS_min = 10000,
+ .tAR_min = 10000,
+ .tCEA_max = 25000,
+ .tCEH_min = 20000,
+ .tCH_min = 5000,
+ .tCHZ_max = 50000,
+ .tCLH_min = 5000,
+ .tCLR_min = 10000,
+ .tCLS_min = 10000,
+ .tCOH_min = 15000,
+ .tCS_min = 25000,
+ .tDH_min = 5000,
+ .tDS_min = 10000,
+ .tFEAT_max = 1000000,
+ .tIR_min = 0,
+ .tITC_max = 1000000,
+ .tRC_min = 30000,
+ .tREA_max = 20000,
+ .tREH_min = 10000,
+ .tRHOH_min = 15000,
+ .tRHW_min = 100000,
+ .tRHZ_max = 100000,
+ .tRLOH_min = 0,
+ .tRP_min = 15000,
+ .tRR_min = 20000,
+ .tRST_max = 500000000,
+ .tWB_max = 100000,
+ .tWC_min = 30000,
+ .tWH_min = 10000,
+ .tWHR_min = 80000,
+ .tWP_min = 15000,
+ .tWW_min = 100000,
+ },
},
/* Mode 4 */
{
- .tADL_min = 70000,
- .tALH_min = 5000,
- .tALS_min = 10000,
- .tAR_min = 10000,
- .tCEA_max = 25000,
- .tCEH_min = 20000,
- .tCH_min = 5000,
- .tCHZ_max = 30000,
- .tCLH_min = 5000,
- .tCLR_min = 10000,
- .tCLS_min = 10000,
- .tCOH_min = 15000,
- .tCS_min = 20000,
- .tDH_min = 5000,
- .tDS_min = 10000,
- .tFEAT_max = 1000000,
- .tIR_min = 0,
- .tITC_max = 1000000,
- .tRC_min = 25000,
- .tREA_max = 20000,
- .tREH_min = 10000,
- .tRHOH_min = 15000,
- .tRHW_min = 100000,
- .tRHZ_max = 100000,
- .tRLOH_min = 5000,
- .tRP_min = 12000,
- .tRR_min = 20000,
- .tRST_max = 500000000,
- .tWB_max = 100000,
- .tWC_min = 25000,
- .tWH_min = 10000,
- .tWHR_min = 80000,
- .tWP_min = 12000,
- .tWW_min = 100000,
+ .type = NAND_SDR_IFACE,
+ .timings.sdr = {
+ .tADL_min = 70000,
+ .tALH_min = 5000,
+ .tALS_min = 10000,
+ .tAR_min = 10000,
+ .tCEA_max = 25000,
+ .tCEH_min = 20000,
+ .tCH_min = 5000,
+ .tCHZ_max = 30000,
+ .tCLH_min = 5000,
+ .tCLR_min = 10000,
+ .tCLS_min = 10000,
+ .tCOH_min = 15000,
+ .tCS_min = 20000,
+ .tDH_min = 5000,
+ .tDS_min = 10000,
+ .tFEAT_max = 1000000,
+ .tIR_min = 0,
+ .tITC_max = 1000000,
+ .tRC_min = 25000,
+ .tREA_max = 20000,
+ .tREH_min = 10000,
+ .tRHOH_min = 15000,
+ .tRHW_min = 100000,
+ .tRHZ_max = 100000,
+ .tRLOH_min = 5000,
+ .tRP_min = 12000,
+ .tRR_min = 20000,
+ .tRST_max = 500000000,
+ .tWB_max = 100000,
+ .tWC_min = 25000,
+ .tWH_min = 10000,
+ .tWHR_min = 80000,
+ .tWP_min = 12000,
+ .tWW_min = 100000,
+ },
},
/* Mode 5 */
{
- .tADL_min = 70000,
- .tALH_min = 5000,
- .tALS_min = 10000,
- .tAR_min = 10000,
- .tCEA_max = 25000,
- .tCEH_min = 20000,
- .tCH_min = 5000,
- .tCHZ_max = 30000,
- .tCLH_min = 5000,
- .tCLR_min = 10000,
- .tCLS_min = 10000,
- .tCOH_min = 15000,
- .tCS_min = 15000,
- .tDH_min = 5000,
- .tDS_min = 7000,
- .tFEAT_max = 1000000,
- .tIR_min = 0,
- .tITC_max = 1000000,
- .tRC_min = 20000,
- .tREA_max = 16000,
- .tREH_min = 7000,
- .tRHOH_min = 15000,
- .tRHW_min = 100000,
- .tRHZ_max = 100000,
- .tRLOH_min = 5000,
- .tRP_min = 10000,
- .tRR_min = 20000,
- .tRST_max = 500000000,
- .tWB_max = 100000,
- .tWC_min = 20000,
- .tWH_min = 7000,
- .tWHR_min = 80000,
- .tWP_min = 10000,
- .tWW_min = 100000,
+ .type = NAND_SDR_IFACE,
+ .timings.sdr = {
+ .tADL_min = 70000,
+ .tALH_min = 5000,
+ .tALS_min = 10000,
+ .tAR_min = 10000,
+ .tCEA_max = 25000,
+ .tCEH_min = 20000,
+ .tCH_min = 5000,
+ .tCHZ_max = 30000,
+ .tCLH_min = 5000,
+ .tCLR_min = 10000,
+ .tCLS_min = 10000,
+ .tCOH_min = 15000,
+ .tCS_min = 15000,
+ .tDH_min = 5000,
+ .tDS_min = 7000,
+ .tFEAT_max = 1000000,
+ .tIR_min = 0,
+ .tITC_max = 1000000,
+ .tRC_min = 20000,
+ .tREA_max = 16000,
+ .tREH_min = 7000,
+ .tRHOH_min = 15000,
+ .tRHW_min = 100000,
+ .tRHZ_max = 100000,
+ .tRLOH_min = 5000,
+ .tRP_min = 10000,
+ .tRR_min = 20000,
+ .tRST_max = 500000000,
+ .tWB_max = 100000,
+ .tWC_min = 20000,
+ .tWH_min = 7000,
+ .tWHR_min = 80000,
+ .tWP_min = 10000,
+ .tWW_min = 100000,
+ },
},
};
@@ -248,6 +266,20 @@ const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode)
if (mode < 0 || mode >= ARRAY_SIZE(onfi_sdr_timings))
return ERR_PTR(-EINVAL);
- return &onfi_sdr_timings[mode];
+ return &onfi_sdr_timings[mode].timings.sdr;
}
EXPORT_SYMBOL(onfi_async_timing_mode_to_sdr_timings);
+
+/**
+ * onfi_async_timing_mode_to_data_interface - [NAND Interface] Retrieve NAND
+ * data interface according to the given ONFI timing mode
+ * @mode: ONFI timing mode
+ */
+const struct nand_data_interface *onfi_async_timing_mode_to_data_interface(int mode)
+{
+ if (mode < 0 || mode >= ARRAY_SIZE(onfi_sdr_timings))
+ return ERR_PTR(-EINVAL);
+
+ return &onfi_sdr_timings[mode];
+}
+EXPORT_SYMBOL(onfi_async_timing_mode_to_data_interface);
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 19c73ef..a8bdf6c 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -1088,6 +1088,8 @@ static inline int jedec_feature(struct nand_chip *chip)
/* get timing characteristics from ONFI timing mode. */
const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode);
+/* get data interface from ONFI timing mode. */
+const struct nand_data_interface *onfi_async_timing_mode_to_data_interface(int mode);
int nand_check_erased_ecc_chunk(void *data, int datalen,
void *ecc, int ecclen,
--
2.8.1
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