From: Sascha Hauer s.hauer@pengutronix.de
struct nand_data_interface is the designated type to pass to the NAND drivers to configure the timing. To simplify further patches convert the onfi_sdr_timings array from type struct nand_sdr_timings nand_data_interface.
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de Signed-off-by: Boris Brezillon boris.brezillon@free-electrons.com [Linux commit: b1dd3ca203fccd111926c3f6ac59bf903ec62b05] Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com
---
drivers/mtd/nand/nand_timings.c | 459 ++++++++++++++++++++++------------------ include/linux/mtd/nand.h | 5 + 2 files changed, 258 insertions(+), 206 deletions(-)
diff --git a/drivers/mtd/nand/nand_timings.c b/drivers/mtd/nand/nand_timings.c index 53dcbd3..b055d27 100644 --- a/drivers/mtd/nand/nand_timings.c +++ b/drivers/mtd/nand/nand_timings.c @@ -12,228 +12,246 @@ #include <linux/kernel.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 = 400000, + .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, + .tRR_min = 40000, + .tRST_max = 250000000000ULL, + .tWB_max = 200000, + .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 = 400000, + .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 = 400000, + .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 = 400000, + .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 = 400000, + .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 = 400000, + .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, + }, }, };
@@ -247,6 +265,35 @@ 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_init_data_interface - [NAND Interface] Initialize a data interface from + * given ONFI mode + * @iface: The data interface to be initialized + * @mode: The ONFI timing mode + */ +int onfi_init_data_interface(struct nand_chip *chip, + struct nand_data_interface *iface, + enum nand_data_interface_type type, + int timing_mode) +{ + if (type != NAND_SDR_IFACE) + return -EINVAL; + + if (timing_mode < 0 || timing_mode >= ARRAY_SIZE(onfi_sdr_timings)) + return -EINVAL; + + *iface = onfi_sdr_timings[timing_mode]; + + /* + * TODO: initialize timings that cannot be deduced from timing mode: + * tR, tPROG, tCCS, ... + * These information are part of the ONFI parameter page. + */ + + return 0; +} +EXPORT_SYMBOL(onfi_init_data_interface); diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index e321e3e..a633fd0 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -1134,6 +1134,11 @@ static inline int onfi_get_sync_timing_mode(struct nand_chip *chip) } #endif
+int onfi_init_data_interface(struct nand_chip *chip, + struct nand_data_interface *iface, + enum nand_data_interface_type type, + int timing_mode); + /* * Check if it is a SLC nand. * The !nand_is_slc() can be used to check the MLC/TLC nand chips.