diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-09 12:38:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-09 12:38:51 -0700 |
| commit | dec1fbbc1d7c46aed9fc1d3ee1f7f4fc04d6ed51 (patch) | |
| tree | a2d88e9bb259c7866be2129dedf77a828ca8911a /drivers/mtd/nand | |
| parent | 71fa1a4489ff93ac4acd7e6c5b00098ba53a4485 (diff) | |
| parent | 6a1380271b75e0d9a961e192e56b733fedf7a23a (diff) | |
Merge tag 'mtd/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"MTD core changes:
- Spelling
- http to https updates
NAND core changes:
- Drop useless 'depends on' in Kconfig
- Add an extra level in the Kconfig hierarchy
- Trivial spellings
- Dynamic allocation of the interface configurations
- Dropping the default ONFI timing mode
- Various cleanup (types, structures, naming, comments)
- Hide the chip->data_interface indirection
- Add the generic rb-gpios property
- Add the ->choose_interface_config() hook
- Introduce nand_choose_best_sdr_timings()
- Use default values for tPROG_max and tBERS_max
- Avoid redefining tR_max and tCCS_min
- Add a helper to find the closest ONFI mode
- bcm63xx MTD parsers: simplify CFE detection
Raw NAND controller drivers changes:
- fsl-upm: Deprecation of specific DT properties
- fsl_upm: Driver rework and cleanup in favor of ->exec_op()
- Ingenic: Cleanup ARRAY_SIZE() vs sizeof() use
- brcmnand: ECC error handling on EDU transfers
- brcmnand: Don't default to EDU transfers
- qcom: Set BAM mode only if not set already
- qcom: Avoid write to unavailable register
- gpio: Driver rework in favor of ->exec_op()
- tango: ->exec_op() conversion
- mtk: ->exec_op() conversion
Raw NAND chip drivers changes:
- toshiba: Implement ->choose_interface_config() for TH58NVG2S3HBAI4,
TC58NVG0S3E, and TC58TEG5DCLTA00
- hynix: Implement ->choose_interface_config() for H27UCG8T2ATR-BC
SPI NOR core changes:
- Disable Quad Mode in spi_nor_restore().
- Don't abort BFPT parsing when QER reserved value is used.
- Add support/update capabilities for few flashes.
- Drop s70fl01gs flash: it does not support RDSR(05h) which is
critical for erase/write.
- Merge the SPIMEM DTR bits in spi-nor/next to avoid conflicts during
the release cycle.
SPI NOR controller drivers changes:
- Move the cadence-quadspi driver to spi-mem. The series was taken
through the SPI tree. Merge it also in spi-nor/next to avoid
conflicts during the release cycle.
- intel-spi:
- Add new PCI IDs.
- Ignore the Write Disable command, the controller doesn't support
it.
- Fix performance regression"
* tag 'mtd/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (79 commits)
MTD: pfow.h: drop a duplicated word
MTD: mtd-abi.h: drop a duplicated word
mtd: rawnand: omap_elm: Replace HTTP links with HTTPS ones
mtd: Replace HTTP links with HTTPS ones
mtd: hyperbus: Replace HTTP links with HTTPS ones
mtd: revert "spi-nor: intel: provide a range for poll_timout"
mtd: spi-nor: update read capabilities for w25q64 and s25fl064k
mtd: spi-nor: micron: Add SPI_NOR_DUAL_READ flag on mt25qu02g
mtd: spi-nor: macronix: Add support for mx66u2g45g
mtd: spi-nor: intel-spi: Simulate WRDI command
mtd: spi-nor: Disable the flash quad mode in spi_nor_restore()
mtd: spi-nor: Add capability to disable flash quad mode
mtd: spi-nor: spansion: Remove s70fl01gs from flash_info
mtd: spi-nor: sfdp: do not make invalid quad enable fatal
dt-bindings: mtd: fsl-upm-nand: Deprecate chip-delay and fsl, upm-wait-flags
mtd: rawnand: stm32_fmc2: get resources from parent node
mtd: rawnand: stm32_fmc2: use regmap APIs
memory: stm32-fmc2-ebi: add STM32 FMC2 EBI controller driver
dt-bindings: memory-controller: add STM32 FMC2 EBI controller documentation
dt-bindings: mtd: update STM32 FMC2 NAND controller documentation
...
Diffstat (limited to 'drivers/mtd/nand')
36 files changed, 1016 insertions, 735 deletions
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index a5d8a211cb8a..c1a45b071165 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -1,7 +1,12 @@ # SPDX-License-Identifier: GPL-2.0-only + +menu "NAND" + config MTD_NAND_CORE tristate source "drivers/mtd/nand/onenand/Kconfig" source "drivers/mtd/nand/raw/Kconfig" source "drivers/mtd/nand/spi/Kconfig" + +endmenu diff --git a/drivers/mtd/nand/onenand/Kconfig b/drivers/mtd/nand/onenand/Kconfig index 572b8fe69abb..1a0e65bc246e 100644 --- a/drivers/mtd/nand/onenand/Kconfig +++ b/drivers/mtd/nand/onenand/Kconfig @@ -1,7 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only menuconfig MTD_ONENAND tristate "OneNAND Device Support" - depends on MTD depends on HAS_IOMEM help This enables support for accessing all type of OneNAND flash diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index 113f61052269..1203775023ad 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -12,7 +12,6 @@ config MTD_NAND_ECC_SW_HAMMING_SMC menuconfig MTD_RAW_NAND tristate "Raw/Parallel NAND Device Support" - depends on MTD select MTD_NAND_CORE select MTD_NAND_ECC_SW_HAMMING help @@ -415,6 +414,7 @@ config MTD_NAND_TEGRA config MTD_NAND_STM32_FMC2 tristate "Support for NAND controller on STM32MP SoCs" depends on MACH_STM32MP157 || COMPILE_TEST + select MFD_SYSCON help Enables support for NAND Flash chips on SoCs containing the FMC2 NAND controller. This controller is found on STM32MP SoCs. diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c index 3711e7a0436c..fdba155416d2 100644 --- a/drivers/mtd/nand/raw/ams-delta.c +++ b/drivers/mtd/nand/raw/ams-delta.c @@ -191,8 +191,8 @@ static int gpio_nand_exec_op(struct nand_chip *this, return ret; } -static int gpio_nand_setup_data_interface(struct nand_chip *this, int csline, - const struct nand_data_interface *cf) +static int gpio_nand_setup_interface(struct nand_chip *this, int csline, + const struct nand_interface_config *cf) { struct gpio_nand *priv = nand_get_controller_data(this); const struct nand_sdr_timings *sdr = nand_get_sdr_timings(cf); @@ -217,7 +217,7 @@ static int gpio_nand_setup_data_interface(struct nand_chip *this, int csline, static const struct nand_controller_ops gpio_nand_ops = { .exec_op = gpio_nand_exec_op, - .setup_data_interface = gpio_nand_setup_data_interface, + .setup_interface = gpio_nand_setup_interface, }; /* diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c index 7141dcccba3c..12c643e97c85 100644 --- a/drivers/mtd/nand/raw/arasan-nand-controller.c +++ b/drivers/mtd/nand/raw/arasan-nand-controller.c @@ -854,8 +854,8 @@ static int anfc_exec_op(struct nand_chip *chip, return nand_op_parser_exec_op(chip, &anfc_op_parser, op, check_only); } -static int anfc_setup_data_interface(struct nand_chip *chip, int target, - const struct nand_data_interface *conf) +static int anfc_setup_interface(struct nand_chip *chip, int target, + const struct nand_interface_config *conf) { struct anand *anand = to_anand(chip); struct arasan_nfc *nfc = to_anfc(chip->controller); @@ -1083,7 +1083,7 @@ static void anfc_detach_chip(struct nand_chip *chip) static const struct nand_controller_ops anfc_ops = { .exec_op = anfc_exec_op, - .setup_data_interface = anfc_setup_data_interface, + .setup_interface = anfc_setup_interface, .attach_chip = anfc_attach_chip, .detach_chip = anfc_detach_chip, }; diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c index 46a3724a788e..c9818f548d07 100644 --- a/drivers/mtd/nand/raw/atmel/nand-controller.c +++ b/drivers/mtd/nand/raw/atmel/nand-controller.c @@ -200,8 +200,8 @@ struct atmel_nand_controller_ops { void (*nand_init)(struct atmel_nand_controller *nc, struct atmel_nand *nand); int (*ecc_init)(struct nand_chip *chip); - int (*setup_data_interface)(struct atmel_nand *nand, int csline, - const struct nand_data_interface *conf); + int (*setup_interface)(struct atmel_nand *nand, int csline, + const struct nand_interface_config *conf); }; struct atmel_nand_controller_caps { @@ -1168,7 +1168,7 @@ static int atmel_hsmc_nand_ecc_init(struct nand_chip *chip) } static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand, - const struct nand_data_interface *conf, + const struct nand_interface_config *conf, struct atmel_smc_cs_conf *smcconf) { u32 ncycles, totalcycles, timeps, mckperiodps; @@ -1397,9 +1397,9 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand, return 0; } -static int atmel_smc_nand_setup_data_interface(struct atmel_nand *nand, +static int atmel_smc_nand_setup_interface(struct atmel_nand *nand, int csline, - const struct nand_data_interface *conf) + const struct nand_interface_config *conf) { struct atmel_nand_controller *nc; struct atmel_smc_cs_conf smcconf; @@ -1422,9 +1422,9 @@ static int atmel_smc_nand_setup_data_interface(struct atmel_nand *nand, return 0; } -static int atmel_hsmc_nand_setup_data_interface(struct atmel_nand *nand, +static int atmel_hsmc_nand_setup_interface(struct atmel_nand *nand, int csline, - const struct nand_data_interface *conf) + const struct nand_interface_config *conf) { struct atmel_hsmc_nand_controller *nc; struct atmel_smc_cs_conf smcconf; @@ -1452,8 +1452,8 @@ static int atmel_hsmc_nand_setup_data_interface(struct atmel_nand *nand, return 0; } -static int atmel_nand_setup_data_interface(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf) +static int atmel_nand_setup_interface(struct nand_chip *chip, int csline, + const struct nand_interface_config *conf) { struct atmel_nand *nand = to_atmel_nand(chip); struct atmel_nand_controller *nc; @@ -1464,7 +1464,7 @@ static int atmel_nand_setup_data_interface(struct nand_chip *chip, int csline, (csline < 0 && csline != NAND_DATA_IFACE_CHECK_ONLY)) return -EINVAL; - return nc->caps->ops->setup_data_interface(nand, csline, conf); + return nc->caps->ops->setup_interface(nand, csline, conf); } static void atmel_nand_init(struct atmel_nand_controller *nc, @@ -1483,7 +1483,7 @@ static void atmel_nand_init(struct atmel_nand_controller *nc, chip->legacy.write_buf = atmel_nand_write_buf; chip->legacy.select_chip = atmel_nand_select_chip; - if (!nc->mck || !nc->caps->ops->setup_data_interface) + if (!nc->mck || !nc->caps->ops->setup_interface) chip->options |= NAND_KEEP_TIMINGS; /* Some NANDs require a longer delay than the default one (20us). */ @@ -1956,7 +1956,7 @@ static int atmel_nand_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops atmel_nand_controller_ops = { .attach_chip = atmel_nand_attach_chip, - .setup_data_interface = atmel_nand_setup_data_interface, + .setup_interface = atmel_nand_setup_interface, }; static int atmel_nand_controller_init(struct atmel_nand_controller *nc, @@ -2318,7 +2318,7 @@ static const struct atmel_nand_controller_ops atmel_hsmc_nc_ops = { .remove = atmel_hsmc_nand_controller_remove, .ecc_init = atmel_hsmc_nand_ecc_init, .nand_init = atmel_hsmc_nand_init, - .setup_data_interface = atmel_hsmc_nand_setup_data_interface, + .setup_interface = atmel_hsmc_nand_setup_interface, }; static const struct atmel_nand_controller_caps atmel_sama5_nc_caps = { @@ -2375,10 +2375,10 @@ atmel_smc_nand_controller_remove(struct atmel_nand_controller *nc) /* * The SMC reg layout of at91rm9200 is completely different which prevents us - * from re-using atmel_smc_nand_setup_data_interface() for the - * ->setup_data_interface() hook. + * from re-using atmel_smc_nand_setup_interface() for the + * ->setup_interface() hook. * At this point, there's no support for the at91rm9200 SMC IP, so we leave - * ->setup_data_interface() unassigned. + * ->setup_interface() unassigned. */ static const struct atmel_nand_controller_ops at91rm9200_nc_ops = { .probe = atmel_smc_nand_controller_probe, @@ -2399,7 +2399,7 @@ static const struct atmel_nand_controller_ops atmel_smc_nc_ops = { .remove = atmel_smc_nand_controller_remove, .ecc_init = atmel_nand_ecc_init, .nand_init = atmel_smc_nand_init, - .setup_data_interface = atmel_smc_nand_setup_data_interface, + .setup_interface = atmel_smc_nand_setup_interface, }; static const struct atmel_nand_controller_caps atmel_sam9260_nc_caps = { diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c index 44068e9eea03..a4033d32a710 100644 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c @@ -1918,6 +1918,22 @@ static int brcmnand_edu_trans(struct brcmnand_host *host, u64 addr, u32 *buf, edu_writel(ctrl, EDU_STOP, 0); /* force stop */ edu_readl(ctrl, EDU_STOP); + if (!ret && edu_cmd == EDU_CMD_READ) { + u64 err_addr = 0; + + /* + * check for ECC errors here, subpage ECC errors are + * retained in ECC error address register + */ + err_addr = brcmnand_get_uncorrecc_addr(ctrl); + if (!err_addr) { + err_addr = brcmnand_get_correcc_addr(ctrl); + if (err_addr) + ret = -EUCLEAN; + } else + ret = -EBADMSG; + } + return ret; } @@ -2124,6 +2140,7 @@ static int brcmnand_read(struct mtd_info *mtd, struct nand_chip *chip, u64 err_addr = 0; int err; bool retry = true; + bool edu_err = false; dev_dbg(ctrl->dev, "read %llx -> %p\n", (unsigned long long)addr, buf); @@ -2141,6 +2158,10 @@ try_dmaread: else return -EIO; } + + if (has_edu(ctrl) && err_addr) + edu_err = true; + } else { if (oob) memset(oob, 0x99, mtd->oobsize); @@ -2188,6 +2209,11 @@ try_dmaread: if (mtd_is_bitflip(err)) { unsigned int corrected = brcmnand_count_corrected(ctrl); + /* in case of EDU correctable error we read again using PIO */ + if (edu_err) + err = brcmnand_read_by_pio(mtd, chip, addr, trans, buf, + oob, &err_addr); + dev_dbg(ctrl->dev, "corrected error at 0x%llx\n", (unsigned long long)err_addr); mtd->ecc_stats.corrected += corrected; @@ -3023,8 +3049,9 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) if (ret < 0) goto err; - /* set edu transfer function to call */ - ctrl->dma_trans = brcmnand_edu_trans; + if (has_edu(ctrl)) + /* set edu transfer function to call */ + ctrl->dma_trans = brcmnand_edu_trans; } /* Disable automatic device ID config, direct addressing */ diff --git a/drivers/mtd/nand/raw/cadence-nand-controller.c b/drivers/mtd/nand/raw/cadence-nand-controller.c index c4f273e2fe78..71516af85f23 100644 --- a/drivers/mtd/nand/raw/cadence-nand-controller.c +++ b/drivers/mtd/nand/raw/cadence-nand-controller.c @@ -2304,8 +2304,8 @@ static inline u32 calc_tdvw(u32 trp_cnt, u32 clk_period, u32 trhoh_min, } static int -cadence_nand_setup_data_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) +cadence_nand_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_interface_config *conf) { const struct nand_sdr_timings *sdr; struct cdns_nand_ctrl *cdns_ctrl = to_cdns_nand_ctrl(chip->controller); @@ -2691,7 +2691,7 @@ static int cadence_nand_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops cadence_nand_controller_ops = { .attach_chip = cadence_nand_attach_chip, .exec_op = cadence_nand_exec_op, - .setup_data_interface = cadence_nand_setup_data_interface, + .setup_interface = cadence_nand_setup_interface, }; static int cadence_nand_chip_init(struct cdns_nand_ctrl *cdns_ctrl, diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c index 4e6e1578aa2d..9d99dade95ce 100644 --- a/drivers/mtd/nand/raw/denali.c +++ b/drivers/mtd/nand/raw/denali.c @@ -761,8 +761,8 @@ static int denali_write_page(struct nand_chip *chip, const u8 *buf, return denali_page_xfer(chip, (void *)buf, mtd->writesize, page, true); } -static int denali_setup_data_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) +static int denali_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_interface_config *conf) { static const unsigned int data_setup_on_host = 10000; struct denali_controller *denali = to_denali_controller(chip); @@ -1173,7 +1173,7 @@ static int denali_exec_op(struct nand_chip *chip, static const struct nand_controller_ops denali_controller_ops = { .attach_chip = denali_attach_chip, .exec_op = denali_exec_op, - .setup_data_interface = denali_setup_data_interface, + .setup_interface = denali_setup_interface, }; int denali_chip_init(struct denali_controller *denali, @@ -1230,7 +1230,7 @@ int denali_chip_init(struct denali_controller *denali, chip->buf_align = 16; } - /* clk rate info is needed for setup_data_interface */ + /* clk rate info is needed for setup_interface */ if (!denali->clk_rate || !denali->clk_x_rate) chip->options |= NAND_KEEP_TIMINGS; diff --git a/drivers/mtd/nand/raw/fsl_upm.c b/drivers/mtd/nand/raw/fsl_upm.c index 627deb26db51..197850aeb261 100644 --- a/drivers/mtd/nand/raw/fsl_upm.c +++ b/drivers/mtd/nand/raw/fsl_upm.c @@ -14,32 +14,23 @@ #include <linux/mtd/nand_ecc.h> #include <linux/mtd/partitions.h> #include <linux/mtd/mtd.h> -#include <linux/of_address.h> #include <linux/of_platform.h> -#include <linux/of_gpio.h> #include <linux/io.h> #include <linux/slab.h> #include <asm/fsl_lbc.h> -#define FSL_UPM_WAIT_RUN_PATTERN 0x1 -#define FSL_UPM_WAIT_WRITE_BYTE 0x2 -#define FSL_UPM_WAIT_WRITE_BUFFER 0x4 - struct fsl_upm_nand { + struct nand_controller base; struct device *dev; struct nand_chip chip; - int last_ctrl; - struct mtd_partition *parts; struct fsl_upm upm; uint8_t upm_addr_offset; uint8_t upm_cmd_offset; void __iomem *io_base; - int rnb_gpio[NAND_MAX_CHIPS]; + struct gpio_desc *rnb_gpio[NAND_MAX_CHIPS]; uint32_t mchip_offsets[NAND_MAX_CHIPS]; uint32_t mchip_count; uint32_t mchip_number; - int chip_delay; - uint32_t wait_flags; }; static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo) @@ -48,106 +39,6 @@ static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo) chip); } -static int fun_chip_ready(struct nand_chip *chip) -{ - struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); - - if (gpio_get_value(fun->rnb_gpio[fun->mchip_number])) - return 1; - - dev_vdbg(fun->dev, "busy\n"); - return 0; -} - -static void fun_wait_rnb(struct fsl_upm_nand *fun) -{ - if (fun->rnb_gpio[fun->mchip_number] >= 0) { - struct mtd_info *mtd = nand_to_mtd(&fun->chip); - int cnt = 1000000; - - while (--cnt && !fun_chip_ready(&fun->chip)) - cpu_relax(); - if (!cnt) - dev_err(fun->dev, "tired waiting for RNB\n"); - } else { - ndelay(100); - } -} - -static void fun_cmd_ctrl(struct nand_chip *chip, int cmd, unsigned int ctrl) -{ - struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); - u32 mar; - - if (!(ctrl & fun->last_ctrl)) { - fsl_upm_end_pattern(&fun->upm); - - if (cmd == NAND_CMD_NONE) - return; - - fun->last_ctrl = ctrl & (NAND_ALE | NAND_CLE); - } - - if (ctrl & NAND_CTRL_CHANGE) { - if (ctrl & NAND_ALE) - fsl_upm_start_pattern(&fun->upm, fun->upm_addr_offset); - else if (ctrl & NAND_CLE) - fsl_upm_start_pattern(&fun->upm, fun->upm_cmd_offset); - } - - mar = (cmd << (32 - fun->upm.width)) | - fun->mchip_offsets[fun->mchip_number]; - fsl_upm_run_pattern(&fun->upm, chip->legacy.IO_ADDR_R, mar); - - if (fun->wait_flags & FSL_UPM_WAIT_RUN_PATTERN) - fun_wait_rnb(fun); -} - -static void fun_select_chip(struct nand_chip *chip, int mchip_nr) -{ - struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); - - if (mchip_nr == -1) { - chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE); - } else if (mchip_nr >= 0 && mchip_nr < NAND_MAX_CHIPS) { - fun->mchip_number = mchip_nr; - chip->legacy.IO_ADDR_R = fun->io_base + fun->mchip_offsets[mchip_nr]; - chip->legacy.IO_ADDR_W = chip->legacy.IO_ADDR_R; - } else { - BUG(); - } -} - -static uint8_t fun_read_byte(struct nand_chip *chip) -{ - struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); - - return in_8(fun->chip.legacy.IO_ADDR_R); -} - -static void fun_read_buf(struct nand_chip *chip, uint8_t *buf, int len) -{ - struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); - int i; - - for (i = 0; i < len; i++) - buf[i] = in_8(fun->chip.legacy.IO_ADDR_R); -} - -static void fun_write_buf(struct nand_chip *chip, const uint8_t *buf, int len) -{ - struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); - int i; - - for (i = 0; i < len; i++) { - out_8(fun->chip.legacy.IO_ADDR_W, buf[i]); - if (fun->wait_flags & FSL_UPM_WAIT_WRITE_BYTE) - fun_wait_rnb(fun); - } - if (fun->wait_flags & FSL_UPM_WAIT_WRITE_BUFFER) - fun_wait_rnb(fun); -} - static int fun_chip_init(struct fsl_upm_nand *fun, const struct device_node *upm_np, const struct resource *io_res) @@ -156,21 +47,9 @@ static int fun_chip_init(struct fsl_upm_nand *fun, int ret; struct device_node *flash_np; - fun->chip.legacy.IO_ADDR_R = fun->io_base; - fun->chip.legacy.IO_ADDR_W = fun->io_base; - fun->chip.legacy.cmd_ctrl = fun_cmd_ctrl; - fun->chip.legacy.chip_delay = fun->chip_delay; - fun->chip.legacy.read_byte = fun_read_byte; - fun->chip.legacy.read_buf = fun_read_buf; - fun->chip.legacy.write_buf = fun_write_buf; fun->chip.ecc.mode = NAND_ECC_SOFT; fun->chip.ecc.algo = NAND_ECC_HAMMING; - if (fun->mchip_count > 1) - fun->chip.legacy.select_chip = fun_select_chip; - - if (fun->rnb_gpio[0] >= 0) - fun->chip.legacy.dev_ready = fun_chip_ready; - + fun->chip.controller = &fun->base; mtd->dev.parent = fun->dev; flash_np = of_get_next_child(upm_np, NULL); @@ -178,8 +57,9 @@ static int fun_chip_init(struct fsl_upm_nand *fun, return -ENODEV; nand_set_flash_node(&fun->chip, flash_np); - mtd->name = kasprintf(GFP_KERNEL, "0x%llx.%pOFn", (u64)io_res->start, - flash_np); + mtd->name = devm_kasprintf(fun->dev, GFP_KERNEL, "0x%llx.%pOFn", + (u64)io_res->start, + flash_np); if (!mtd->name) { ret = -ENOMEM; goto err; @@ -192,51 +72,130 @@ static int fun_chip_init(struct fsl_upm_nand *fun, ret = mtd_device_register(mtd, NULL, 0); err: of_node_put(flash_np); - if (ret) - kfree(mtd->name); return ret; } +static int func_exec_instr(struct nand_chip *chip, + const struct nand_op_instr *instr) +{ + struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); + u32 mar, reg_offs = fun->mchip_offsets[fun->mchip_number]; + unsigned int i; + const u8 *out; + u8 *in; + + switch (instr->type) { + case NAND_OP_CMD_INSTR: + fsl_upm_start_pattern(&fun->upm, fun->upm_cmd_offset); + mar = (instr->ctx.cmd.opcode << (32 - fun->upm.width)) | + reg_offs; + fsl_upm_run_pattern(&fun->upm, fun->io_base + reg_offs, mar); + fsl_upm_end_pattern(&fun->upm); + return 0; + + case NAND_OP_ADDR_INSTR: + fsl_upm_start_pattern(&fun->upm, fun->upm_addr_offset); + for (i = 0; i < instr->ctx.addr.naddrs; i++) { + mar = (instr->ctx.addr.addrs[i] << (32 - fun->upm.width)) | + reg_offs; + fsl_upm_run_pattern(&fun->upm, fun->io_base + reg_offs, mar); + } + fsl_upm_end_pattern(&fun->upm); + return 0; + + case NAND_OP_DATA_IN_INSTR: + in = instr->ctx.data.buf.in; + for (i = 0; i < instr->ctx.data.len; i++) + in[i] = in_8(fun->io_base + reg_offs); + return 0; + + case NAND_OP_DATA_OUT_INSTR: + out = instr->ctx.data.buf.out; + for (i = 0; i < instr->ctx.data.len; i++) + out_8(fun->io_base + reg_offs, out[i]); + return 0; + + case NAND_OP_WAITRDY_INSTR: + if (!fun->rnb_gpio[fun->mchip_number]) + return nand_soft_waitrdy(chip, instr->ctx.waitrdy.timeout_ms); + + return nand_gpio_waitrdy(chip, fun->rnb_gpio[fun->mchip_number], + instr->ctx.waitrdy.timeout_ms); + + default: + return -EINVAL; + } + + return 0; +} + +static int fun_exec_op(struct nand_chip *chip, const struct nand_operation *op, + bool check_only) +{ + struct fsl_upm_nand *fun = to_fsl_upm_nand(nand_to_mtd(chip)); + unsigned int i; + int ret; + + if (op->cs > NAND_MAX_CHIPS) + return -EINVAL; + + if (check_only) + return 0; + + fun->mchip_number = op->cs; + + for (i = 0; i < op->ninstrs; i++) { + ret = func_exec_instr(chip, &op->instrs[i]); + if (ret) + return ret; + + if (op->instrs[i].delay_ns) + ndelay(op->instrs[i].delay_ns); + } + + return 0; +} + +static const struct nand_controller_ops fun_ops = { + .exec_op = fun_exec_op, +}; + static int fun_probe(struct platform_device *ofdev) { struct fsl_upm_nand *fun; - struct resource io_res; + struct resource *io_res; const __be32 *prop; - int rnb_gpio; int ret; int size; int i; - fun = kzalloc(sizeof(*fun), GFP_KERNEL); + fun = devm_kzalloc(&ofdev->dev, sizeof(*fun), GFP_KERNEL); if (!fun) return -ENOMEM; - ret = of_address_to_resource(ofdev->dev.of_node, 0, &io_res); - if (ret) { - dev_err(&ofdev->dev, "can't get IO base\n"); - goto err1; - } + io_res = platform_get_resource(ofdev, IORESOURCE_MEM, 0); + fun->io_base = devm_ioremap_resource(&ofdev->dev, io_res); + if (IS_ERR(fun->io_base)) + return PTR_ERR(fun->io_base); - ret = fsl_upm_find(io_res.start, &fun->upm); + ret = fsl_upm_find(io_res->start, &fun->upm); if (ret) { dev_err(&ofdev->dev, "can't find UPM\n"); - goto err1; + return ret; } prop = of_get_property(ofdev->dev.of_node, "fsl,upm-addr-offset", &size); if (!prop || size != sizeof(uint32_t)) { dev_err(&ofdev->dev, "can't get UPM address offset\n"); - ret = -EINVAL; - goto err1; + return -EINVAL; } fun->upm_addr_offset = *prop; prop = of_get_property(ofdev->dev.of_node, "fsl,upm-cmd-offset", &size); if (!prop || size != sizeof(uint32_t)) { dev_err(&ofdev->dev, "can't get UPM command offset\n"); - ret = -EINVAL; - goto err1; + return -EINVAL; } fun->upm_cmd_offset = *prop; @@ -246,7 +205,7 @@ static int fun_probe(struct platform_device *ofdev) fun->mchip_count = size / sizeof(uint32_t); if (fun->mchip_count >= NAND_MAX_CHIPS) { dev_err(&ofdev->dev, "too much multiple chips\n"); - goto err1; + return -EINVAL; } for (i = 0; i < fun->mchip_count; i++) fun->mchip_offsets[i] = be32_to_cpu(prop[i]); @@ -255,63 +214,26 @@ static int fun_probe(struct platform_device *ofdev) } for (i = 0; i < fun->mchip_count; i++) { - fun->rnb_gpio[i] = -1; - rnb_gpio = of_get_gpio(ofdev->dev.of_node, i); - if (rnb_gpio >= 0) { - ret = gpio_request(rnb_gpio, dev_name(&ofdev->dev)); - if (ret) { - dev_err(&ofdev->dev, - "can't request RNB gpio #%d\n", i); - goto err2; - } - gpio_direction_input(rnb_gpio); - fun->rnb_gpio[i] = rnb_gpio; - } else if (rnb_gpio == -EINVAL) { + fun->rnb_gpio[i] = devm_gpiod_get_index_optional(&ofdev->dev, + NULL, i, + GPIOD_IN); + if (IS_ERR(fun->rnb_gpio[i])) { dev_err(&ofdev->dev, "RNB gpio #%d is invalid\n", i); - goto err2; + return PTR_ERR(fun->rnb_gpio[i]); } } - prop = of_get_property(ofdev->dev.of_node, "chip-delay", NULL); - if (prop) - fun->chip_delay = be32_to_cpup(prop); - else - fun->chip_delay = 50; - - prop = of_get_property(ofdev->dev.of_node, "fsl,upm-wait-flags", &size); - if (prop && size == sizeof(uint32_t)) - fun->wait_flags = be32_to_cpup(prop); - else - fun->wait_flags = FSL_UPM_WAIT_RUN_PATTERN | - FSL_UPM_WAIT_WRITE_BYTE; - - fun->io_base = devm_ioremap(&ofdev->dev, io_res.start, - resource_size(&io_res)); - if (!fun->io_base) { - ret = -ENOMEM; - goto err2; - } - + nand_controller_init(&fun->base); + fun->base.ops = &fun_ops; fun->dev = &ofdev->dev; - fun->last_ctrl = NAND_CLE; - ret = fun_chip_init(fun, ofdev->dev.of_node, &io_res); + ret = fun_chip_init(fun, ofdev->dev.of_node, io_res); if (ret) - goto err2; + return ret; dev_set_drvdata(&ofdev->dev, fun); return 0; -err2: - for (i = 0; i < fun->mchip_count; i++) { - if (fun->rnb_gpio[i] < 0) - break; - gpio_free(fun->rnb_gpio[i]); - } -err1: - kfree(fun); - - return ret; } static int fun_remove(struct platform_device *ofdev) @@ -319,20 +241,11 @@ static int fun_remove(struct platform_device *ofdev) struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev); struct nand_chip *chip = &fun->chip; struct mtd_info *mtd = nand_to_mtd(chip); - int ret, i; + int ret; ret = mtd_device_unregister(mtd); WARN_ON(ret); nand_cleanup(chip); - kfree(mtd->name); - - for (i = 0; i < fun->mchip_count; i++) { - if (fun->rnb_gpio[i] < 0) - break; - gpio_free(fun->rnb_gpio[i]); - } - - kfree(fun); return 0; } diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c index 3909752b14c5..92ddc41d0ff0 100644 --- a/drivers/mtd/nand/raw/fsmc_nand.c +++ b/drivers/mtd/nand/raw/fsmc_nand.c @@ -327,8 +327,8 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host, return 0; } -static int fsmc_setup_data_interface(struct nand_chip *nand, int csline, - const struct nand_data_interface *conf) +static int fsmc_setup_interface(struct nand_chip *nand, int csline, + const struct nand_interface_config *conf) { struct fsmc_nand_data *host = nand_to_fsmc(nand); struct fsmc_nand_timings tims; @@ -951,7 +951,7 @@ static int fsmc_nand_attach_chip(struct nand_chip *nand) static const struct nand_controller_ops fsmc_nand_controller_ops = { .attach_chip = fsmc_nand_attach_chip, .exec_op = fsmc_exec_op, - .setup_data_interface = fsmc_setup_data_interface, + .setup_interface = fsmc_setup_interface, }; /** diff --git a/drivers/mtd/nand/raw/gpio.c b/drivers/mtd/nand/raw/gpio.c index 938077e5c6a9..3bd847ccc3f3 100644 --- a/drivers/mtd/nand/raw/gpio.c +++ b/drivers/mtd/nand/raw/gpio.c @@ -25,8 +25,11 @@ #include <linux/mtd/nand-gpio.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/delay.h> struct gpiomtd { + struct nand_controller base; + void __iomem *io; void __iomem *io_sync; struct nand_chip nand_chip; struct gpio_nand_platdata plat; @@ -69,34 +72,99 @@ static void gpio_nand_dosync(struct gpiomtd *gpiomtd) static inline void gpio_nand_dosync(struct gpiomtd *gpiomtd) {} #endif -static void gpio_nand_cmd_ctrl(struct nand_chip *chip, int cmd, - unsigned int ctrl) +static int gpio_nand_exec_instr(struct nand_chip *chip, + const struct nand_op_instr *instr) { struct gpiomtd *gpiomtd = gpio_nand_getpriv(nand_to_mtd(chip)); + unsigned int i; - gpio_nand_dosync(gpiomtd); + switch (instr->type) { + case NAND_OP_CMD_INSTR: + gpio_nand_dosync(gpiomtd); + gpiod_set_value(gpiomtd->cle, 1); + gpio_nand_dosync(gpiomtd); + writeb(instr->ctx.cmd.opcode, gpiomtd->io); + gpio_nand_dosync(gpiomtd); + gpiod_set_value(gpiomtd->cle, 0); + return 0; + + case NAND_OP_ADDR_INSTR: + gpio_nand_dosync(gpiomtd); + gpiod_set_value(gpiomtd->ale, 1); + gpio_nand_dosync(gpiomtd); + for (i = 0; i < instr->ctx.addr.naddrs; i++) + writeb(instr->ctx.addr.addrs[i], gpiomtd->io); + gpio_nand_dosync(gpiomtd); + gpiod_set_value(gpiomtd->ale, 0); + return 0; + + case NAND_OP_DATA_IN_INSTR: + gpio_nand_dosync(gpiomtd); + if ((chip->options & NAND_BUSWIDTH_16) && + !instr->ctx.data.force_8bit) + ioread16_rep(gpiomtd->io, instr->ctx.data.buf.in, + instr->ctx.data.len / 2); + else + ioread8_rep(gpiomtd->io, instr->ctx.data.buf.in, + instr->ctx.data.len); + return 0; - if (ctrl & NAND_CTRL_CHANGE) { - if (gpiomtd->nce) - gpiod_set_value(gpiomtd->nce, !(ctrl & NAND_NCE)); - gpiod_set_value(gpiomtd->cle, !!(ctrl & NAND_CLE)); - gpiod_set_value(gpiomtd->ale, !!(ctrl & NAND_ALE)); + case NAND_OP_DATA_OUT_INSTR: gpio_nand_dosync(gpiomtd); + if ((chip->options & NAND_BUSWIDTH_16) && + !instr->ctx.data.force_8bit) + iowrite16_rep(gpiomtd->io, instr->ctx.data.buf.out, + instr->ctx.data.len / 2); + else + iowrite8_rep(gpiomtd->io, instr->ctx.data.buf.out, + instr->ctx.data.len); + return 0; + + case NAND_OP_WAITRDY_INSTR: + if (!gpiomtd->rdy) + return nand_soft_waitrdy(chip, instr->ctx.waitrdy.timeout_ms); + + return nand_gpio_waitrdy(chip, gpiomtd->rdy, + instr->ctx.waitrdy.timeout_ms); + + default: + return -EINVAL; } - if (cmd == NAND_CMD_NONE) - return; - writeb(cmd, gpiomtd->nand_chip.legacy.IO_ADDR_W); - gpio_nand_dosync(gpiomtd); + return 0; } -static int gpio_nand_devready(struct nand_chip *chip) +static int gpio_nand_exec_op(struct nand_chip *chip, + const struct nand_operation *op, + bool check_only) { struct gpiomtd *gpiomtd = gpio_nand_getpriv(nand_to_mtd(chip)); + unsigned int i; + int ret = 0; + + if (check_only) + return 0; - return gpiod_get_value(gpiomtd->rdy); + gpio_nand_dosync(gpiomtd); + gpiod_set_value(gpiomtd->nce, 0); + for (i = 0; i < op->ninstrs; i++) { + ret = gpio_nand_exec_instr(chip, &op->instrs[i]); + if (ret) + break; + + if (op->instrs[i].delay_ns) + ndelay(op->instrs[i].delay_ns); + } + gpio_nand_dosync(gpiomtd); + gpiod_set_value(gpiomtd->nce, 1); + + return ret; } +static const struct nand_controller_ops gpio_nand_ops = { + .exec_op = gpio_nand_exec_op, +}; + #ifdef CONFIG_OF static const struct of_device_id gpio_nand_id_table[] = { { .compatible = "gpio-control-nand" }, @@ -225,9 +293,9 @@ static int gpio_nand_probe(struct platform_device *pdev) chip = &gpiomtd->nand_chip; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - chip->legacy.IO_ADDR_R = devm_ioremap_resource(dev, res); - if (IS_ERR(chip->legacy.IO_ADDR_R)) - return PTR_ERR(chip->legacy.IO_ADDR_R); + gpiomtd->io = devm_ioremap_resource(dev, res); + if (IS_ERR(gpiomtd->io)) + return PTR_ERR(gpiomtd->io); res = gpio_nand_get_io_sync(pdev); if (res) { @@ -269,17 +337,15 @@ static int gpio_nand_probe(struct platform_device *pdev) ret = PTR_ERR(gpiomtd->rdy); goto out_ce; } - /* Using RDY pin */ - if (gpiomtd->rdy) - chip->legacy.dev_ready = gpio_nand_devready; + + nand_controller_init(&gpiomtd->base); + gpiomtd->base.ops = &gpio_nand_ops; nand_set_flash_node(chip, pdev->dev.of_node); - chip->legacy.IO_ADDR_W = chip->legacy.IO_ADDR_R; chip->ecc.mode = NAND_ECC_SOFT; chip->ecc.algo = NAND_ECC_HAMMING; chip->options = gpiomtd->plat.options; - chip->legacy.chip_delay = gpiomtd->plat.chip_delay; - chip->legacy.cmd_ctrl = gpio_nand_cmd_ctrl; + chip->controller = &gpiomtd->base; mtd = nand_to_mtd(chip); mtd->dev.parent = dev; diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c index 061a8ddda275..5d4aee46cc55 100644 --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c @@ -736,8 +736,8 @@ static void gpmi_nfc_apply_timings(struct gpmi_nand_data *this) udelay(dll_wait_time_us); } -static int gpmi_setup_data_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) +static int gpmi_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_interface_config *conf) { struct gpmi_nand_data *this = nand_get_controller_data(chip); const struct nand_sdr_timings *sdr; @@ -2400,7 +2400,7 @@ unmap: static const struct nand_controller_ops gpmi_nand_controller_ops = { .attach_chip = gpmi_nand_attach_chip, - .setup_data_interface = gpmi_setup_data_interface, + .setup_interface = gpmi_setup_interface, .exec_op = gpmi_nfc_exec_op, }; diff --git a/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c b/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c index 13fea645c7f0..54e377754a6c 100644 --- a/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c +++ b/drivers/mtd/nand/raw/ingenic/jz4740_ecc.c @@ -90,8 +90,8 @@ static int jz4740_ecc_calculate(struct ingenic_ecc *ecc, * If the written data is completely 0xff, we also want to write 0xff as * ECC, otherwise we will get in trouble when doing subpage writes. */ - if (memcmp(ecc_code, empty_block_ecc, ARRAY_SIZE(empty_block_ecc)) == 0) - memset(ecc_code, 0xff, ARRAY_SIZE(empty_block_ecc)); + if (memcmp(ecc_code, empty_block_ecc, sizeof(empty_block_ecc)) == 0) + memset(ecc_code, 0xff, sizeof(empty_block_ecc)); return 0; } diff --git a/drivers/mtd/nand/raw/internals.h b/drivers/mtd/nand/raw/internals.h index 03866b0aadea..012876e14317 100644 --- a/drivers/mtd/nand/raw/internals.h +++ b/drivers/mtd/nand/raw/internals.h @@ -53,12 +53,12 @@ struct nand_manufacturer_ops { }; /** - * struct nand_manufacturer - NAND Flash Manufacturer structure + * struct nand_manufacturer_desc - NAND Flash Manufacturer descriptor * @name: Manufacturer name * @id: manufacturer ID code of device. * @ops: manufacturer operations */ -struct nand_manufacturer { +struct nand_manufacturer_desc { int id; char *name; const struct nand_manufacturer_ops *ops; @@ -79,14 +79,21 @@ extern const struct nand_manufacturer_ops toshiba_nand_manuf_ops; extern const struct mtd_pairing_scheme dist3_pairing_scheme; /* Core functions */ -const struct nand_manufacturer *nand_get_manufacturer(u8 id); +const struct nand_manufacturer_desc *nand_get_manufacturer_desc(u8 id); int nand_bbm_get_next_page(struct nand_chip *chip, int page); int nand_markbad_bbm(struct nand_chip *chip, loff_t ofs); int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr, int allowbbt); -int onfi_fill_data_interface(struct nand_chip *chip, - enum nand_data_interface_type type, - int timing_mode); +void onfi_fill_interface_config(struct nand_chip *chip, + struct nand_interface_config *iface, + enum nand_interface_type type, + unsigned int timing_mode); +unsigned int +onfi_find_closest_sdr_mode(const struct nand_sdr_timings *spec_timings); +int nand_choose_best_sdr_timings(struct nand_chip *chip, + struct nand_interface_config *iface, + struct nand_sdr_timings *spec_timings); +const struct nand_interface_config *nand_get_reset_interface_config(void); 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); int nand_read_page_raw_notsupp(struct nand_chip *chip, u8 *buf, @@ -130,10 +137,10 @@ static inline int nand_exec_op(struct nand_chip *chip, return chip->controller->ops->exec_op(chip, op, false); } -static inline bool nand_has_setup_data_iface(struct nand_chip *chip) +static inline bool nand_controller_can_setup_interface(struct nand_chip *chip) { if (!chip->controller || !chip->controller->ops || - !chip->controller->ops->setup_data_interface) + !chip->controller->ops->setup_interface) return false; if (chip->options & NAND_KEEP_TIMINGS) diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c index 260a0430313e..8482d3bd8b1f 100644 --- a/drivers/mtd/nand/raw/marvell_nand.c +++ b/drivers/mtd/nand/raw/marvell_nand.c @@ -1096,6 +1096,8 @@ static int marvell_nfc_hw_ecc_hmg_do_write_page(struct nand_chip *chip, const u8 *oob_buf, bool raw, int page) { + const struct nand_sdr_timings *sdr = + nand_get_sdr_timings(nand_get_interface_config(chip)); struct marvell_nand_chip *marvell_nand = to_marvell_nand(chip); struct marvell_nfc *nfc = to_marvell_nfc(chip->controller); const struct marvell_hw_ecc_layout *lt = to_marvell_nand(chip)->layout; @@ -1141,7 +1143,7 @@ static int marvell_nfc_hw_ecc_hmg_do_write_page(struct nand_chip *chip, return ret; ret = marvell_nfc_wait_op(chip, - PSEC_TO_MSEC(chip->data_interface.timings.sdr.tPROG_max)); + PSEC_TO_MSEC(sdr->tPROG_max)); return ret; } @@ -1562,6 +1564,8 @@ static int marvell_nfc_hw_ecc_bch_write_page(struct nand_chip *chip, const u8 *buf, int oob_required, int page) { + const struct nand_sdr_timings *sdr = + nand_get_sdr_timings(nand_get_interface_config(chip)); struct mtd_info *mtd = nand_to_mtd(chip); const struct marvell_hw_ecc_layout *lt = to_marvell_nand(chip)->layout; const u8 *data = buf; @@ -1598,8 +1602,7 @@ static int marvell_nfc_hw_ecc_bch_write_page(struct nand_chip *chip, marvell_nfc_wait_ndrun(chip); } - ret = marvell_nfc_wait_op(chip, - PSEC_TO_MSEC(chip->data_interface.timings.sdr.tPROG_max)); + ret = marvell_nfc_wait_op(chip, PSEC_TO_MSEC(sdr->tPROG_max)); marvell_nfc_disable_hw_ecc(chip); @@ -2305,9 +2308,8 @@ static struct nand_bbt_descr bbt_mirror_descr = { .pattern = bbt_mirror_pattern }; -static int marvell_nfc_setup_data_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface - *conf) +static int marvell_nfc_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_interface_config *conf) { struct marvell_nand_chip *marvell_nand = to_marvell_nand(chip); struct marvell_nfc *nfc = to_marvell_nfc(chip->controller); @@ -2508,7 +2510,7 @@ static int marvell_nand_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops marvell_nand_controller_ops = { .attach_chip = marvell_nand_attach_chip, .exec_op = marvell_nfc_exec_op, - .setup_data_interface = marvell_nfc_setup_data_interface, + .setup_interface = marvell_nfc_setup_interface, }; static int marvell_nand_chip_init(struct device *dev, struct marvell_nfc *nfc, @@ -2644,7 +2646,7 @@ static int marvell_nand_chip_init(struct device *dev, struct marvell_nfc *nfc, /* * Save a reference value for timing registers before - * ->setup_data_interface() is called. + * ->setup_interface() is called. */ marvell_nand->ndtr0 = readl_relaxed(nfc->regs + NDTR0); marvell_nand->ndtr1 = readl_relaxed(nfc->regs + NDTR1); diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c index 3f376471f3f7..0e5829a2b54f 100644 --- a/drivers/mtd/nand/raw/meson_nand.c +++ b/drivers/mtd/nand/raw/meson_nand.c @@ -573,10 +573,10 @@ static int meson_nfc_write_buf(struct nand_chip *nand, u8 *buf, int len) static int meson_nfc_rw_cmd_prepare_and_execute(struct nand_chip *nand, int page, bool in) { + const struct nand_sdr_timings *sdr = + nand_get_sdr_timings(nand_get_interface_config(nand)); struct mtd_info *mtd = nand_to_mtd(nand); struct meson_nfc *nfc = nand_get_controller_data(nand); - const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&nand->data_interface); u32 *addrs = nfc->cmdfifo.rw.addrs; u32 cs = nfc->param.chip_select; u32 cmd0, cmd_num, row_start; @@ -626,9 +626,9 @@ static int meson_nfc_rw_cmd_prepare_and_execute(struct nand_chip *nand, static int meson_nfc_write_page_sub(struct nand_chip *nand, int page, int raw) { - struct mtd_info *mtd = nand_to_mtd(nand); const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&nand->data_interface); + nand_get_sdr_timings(nand_get_interface_config(nand)); + struct mtd_info *mtd = nand_to_mtd(nand); struct meson_nfc_nand_chip *meson_chip = to_meson_nand(nand); struct meson_nfc *nfc = nand_get_controller_data(nand); int data_len, info_len; @@ -1097,8 +1097,8 @@ static int meson_chip_buffer_init(struct nand_chip *nand) } static -int meson_nfc_setup_data_interface(struct nand_chip *nand, int csline, - const struct nand_data_interface *conf) +int meson_nfc_setup_interface(struct nand_chip *nand, int csline, + const struct nand_interface_config *conf) { struct meson_nfc_nand_chip *meson_chip = to_meson_nand(nand); const struct nand_sdr_timings *timings; @@ -1222,7 +1222,7 @@ static int meson_nand_attach_chip(struct nand_chip *nand) static const struct nand_controller_ops meson_nand_controller_ops = { .attach_chip = meson_nand_attach_chip, .detach_chip = meson_nand_detach_chip, - .setup_data_interface = meson_nfc_setup_data_interface, + .setup_interface = meson_nfc_setup_interface, .exec_op = meson_nfc_exec_op, }; diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c index c1a6e31aabb8..ad1b55dab211 100644 --- a/drivers/mtd/nand/raw/mtk_nand.c +++ b/drivers/mtd/nand/raw/mtk_nand.c @@ -387,44 +387,6 @@ static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd) return 0; } -static void mtk_nfc_select_chip(struct nand_chip *nand, int chip) -{ - struct mtk_nfc *nfc = nand_get_controller_data(nand); - struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(nand); - - if (chip < 0) - return; - - mtk_nfc_hw_runtime_config(nand_to_mtd(nand)); - - nfi_writel(nfc, mtk_nand->sels[chip], NFI_CSEL); -} - -static int mtk_nfc_dev_ready(struct nand_chip *nand) -{ - struct mtk_nfc *nfc = nand_get_controller_data(nand); - - if (nfi_readl(nfc, NFI_STA) & STA_BUSY) - return 0; - - return 1; -} - -static void mtk_nfc_cmd_ctrl(struct nand_chip *chip, int dat, - unsigned int ctrl) -{ - struct mtk_nfc *nfc = nand_get_controller_data(chip); - - if (ctrl & NAND_ALE) { - mtk_nfc_send_address(nfc, dat); - } else if (ctrl & NAND_CLE) { - mtk_nfc_hw_reset(nfc); - - nfi_writew(nfc, CNFG_OP_CUST, NFI_CNFG); - mtk_nfc_send_command(nfc, dat); - } -} - static inline void mtk_nfc_wait_ioready(struct mtk_nfc *nfc) { int rc; @@ -501,8 +463,76 @@ static void mtk_nfc_write_buf(struct nand_chip *chip, const u8 *buf, int len) mtk_nfc_write_byte(chip, buf[i]); } -static int mtk_nfc_setup_data_interface(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf) +static int mtk_nfc_exec_instr(struct nand_chip *chip, + const struct nand_op_instr *instr) +{ + struct mtk_nfc *nfc = nand_get_controller_data(chip); + unsigned int i; + u32 status; + + switch (instr->type) { + case NAND_OP_CMD_INSTR: + mtk_nfc_send_command(nfc, instr->ctx.cmd.opcode); + return 0; + case NAND_OP_ADDR_INSTR: + for (i = 0; i < instr->ctx.addr.naddrs; i++) + mtk_nfc_send_address(nfc, instr->ctx.addr.addrs[i]); + return 0; + case NAND_OP_DATA_IN_INSTR: + mtk_nfc_read_buf(chip, instr->ctx.data.buf.in, + instr->ctx.data.len); + return 0; + case NAND_OP_DATA_OUT_INSTR: + mtk_nfc_write_buf(chip, instr->ctx.data.buf.out, + instr->ctx.data.len); + return 0; + case NAND_OP_WAITRDY_INSTR: + return readl_poll_timeout(nfc->regs + NFI_STA, status, + status & STA_BUSY, 20, + instr->ctx.waitrdy.timeout_ms); + default: + break; + } + + return -EINVAL; +} + +static void mtk_nfc_select_target(struct nand_chip *nand, unsigned int cs) +{ + struct mtk_nfc *nfc = nand_get_controller_data(nand); + struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(nand); + + mtk_nfc_hw_runtime_config(nand_to_mtd(nand)); + + nfi_writel(nfc, mtk_nand->sels[cs], NFI_CSEL); +} + +static int mtk_nfc_exec_op(struct nand_chip *chip, + const struct nand_operation *op, + bool check_only) +{ + struct mtk_nfc *nfc = nand_get_controller_data(chip); + unsigned int i; + int ret = 0; + + if (check_only) + return 0; + + mtk_nfc_hw_reset(nfc); + nfi_writew(nfc, CNFG_OP_CUST, NFI_CNFG); + mtk_nfc_select_target(chip, op->cs); + + for (i = 0; i < op->ninstrs; i++) { + ret = mtk_nfc_exec_instr(chip, &op->instrs[i]); + if (ret) + break; + } + + return ret; +} + +static int mtk_nfc_setup_interface(struct nand_chip *chip, int csline, + const struct nand_interface_config *conf) { struct mtk_nfc *nfc = nand_get_controller_data(chip); const struct nand_sdr_timings *timings; @@ -803,6 +833,7 @@ static int mtk_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip, u32 reg; int ret; + mtk_nfc_select_target(chip, chip->cur_cs); nand_prog_page_begin_op(chip, page, 0, NULL, 0); if (!raw) { @@ -920,6 +951,7 @@ static int mtk_nfc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, u8 *buf; int rc; + mtk_nfc_select_target(chip, chip->cur_cs); start = data_offs / chip->ecc.size; end = DIV_ROUND_UP(data_offs + readlen, chip->ecc.size); @@ -1325,7 +1357,8 @@ static int mtk_nfc_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops mtk_nfc_controller_ops = { .attach_chip = mtk_nfc_attach_chip, - .setup_data_interface = mtk_nfc_setup_data_interface, + .setup_interface = mtk_nfc_setup_interface, + .exec_op = mtk_nfc_exec_op, }; static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, @@ -1381,13 +1414,6 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, nand_set_controller_data(nand, nfc); nand->options |= NAND_USES_DMA | NAND_SUBPAGE_READ; - nand->legacy.dev_ready = mtk_nfc_dev_ready; - nand->legacy.select_chip = mtk_nfc_select_chip; - nand->legacy.write_byte = mtk_nfc_write_byte; - nand->legacy.write_buf = mtk_nfc_write_buf; - nand->legacy.read_byte = mtk_nfc_read_byte; - nand->legacy.read_buf = mtk_nfc_read_buf; - nand->legacy.cmd_ctrl = mtk_nfc_cmd_ctrl; /* set default mode in case dt entry is missing */ nand->ecc.mode = NAND_ECC_HW; diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c index 09dacb83cb5a..a043d76b48cb 100644 --- a/drivers/mtd/nand/raw/mxc_nand.c +++ b/drivers/mtd/nand/raw/mxc_nand.c @@ -137,8 +137,8 @@ struct mxc_nand_devtype_data { u32 (*get_ecc_status)(struct mxc_nand_host *); const struct mtd_ooblayout_ops *ooblayout; void (*select_chip)(struct nand_chip *chip, int cs); - int (*setup_data_interface)(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf); + int (*setup_interface)(struct nand_chip *chip, int csline, + const struct nand_interface_config *conf); void (*enable_hwecc)(struct nand_chip *chip, bool enable); /* @@ -1139,8 +1139,8 @@ static void preset_v1(struct mtd_info *mtd) writew(0x4, NFC_V1_V2_WRPROT); } -static int mxc_nand_v2_setup_data_interface(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf) +static int mxc_nand_v2_setup_interface(struct nand_chip *chip, int csline, + const struct nand_interface_config *conf) { struct mxc_nand_host *host = nand_get_controller_data(chip); int tRC_min_ns, tRC_ps, ret; @@ -1432,7 +1432,7 @@ static int mxc_nand_get_features(struct nand_chip *chip, int addr, } /* - * The generic flash bbt decriptors overlap with our ecc + * The generic flash bbt descriptors overlap with our ecc * hardware, so define some i.MX specific ones. */ static uint8_t bbt_pattern[] = { 'B', 'b', 't', '0' }; @@ -1521,7 +1521,7 @@ static const struct mxc_nand_devtype_data imx25_nand_devtype_data = { .get_ecc_status = get_ecc_status_v2, .ooblayout = &mxc_v2_ooblayout_ops, .select_chip = mxc_nand_select_chip_v2, - .setup_data_interface = mxc_nand_v2_setup_data_interface, + .setup_interface = mxc_nand_v2_setup_interface, .enable_hwecc = mxc_nand_enable_hwecc_v1_v2, .irqpending_quirk = 0, .needs_ip = 0, @@ -1738,17 +1738,17 @@ static int mxcnd_attach_chip(struct nand_chip *chip) return 0; } -static int mxcnd_setup_data_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) +static int mxcnd_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_interface_config *conf) { struct mxc_nand_host *host = nand_get_controller_data(chip); - return host->devtype_data->setup_data_interface(chip, chipnr, conf); + return host->devtype_data->setup_interface(chip, chipnr, conf); } static const struct nand_controller_ops mxcnd_controller_ops = { .attach_chip = mxcnd_attach_chip, - .setup_data_interface = mxcnd_setup_data_interface, + .setup_interface = mxcnd_setup_interface, }; static int mxcnd_probe(struct platform_device *pdev) @@ -1809,7 +1809,7 @@ static int mxcnd_probe(struct platform_device *pdev) if (err < 0) return err; - if (!host->devtype_data->setup_data_interface) + if (!host->devtype_data->setup_interface) this->options |= NAND_KEEP_TIMINGS; if (host->devtype_data->needs_ip) { diff --git a/drivers/mtd/nand/raw/mxic_nand.c b/drivers/mtd/nand/raw/mxic_nand.c index 57f36721f4c6..d66b5b0971fa 100644 --- a/drivers/mtd/nand/raw/mxic_nand.c +++ b/drivers/mtd/nand/raw/mxic_nand.c @@ -451,8 +451,8 @@ static int mxic_nfc_exec_op(struct nand_chip *chip, return ret; } -static int mxic_nfc_setup_data_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) +static int mxic_nfc_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_interface_config *conf) { struct mxic_nand_ctlr *nfc = nand_get_controller_data(chip); const struct nand_sdr_timings *sdr; @@ -480,7 +480,7 @@ static int mxic_nfc_setup_data_interface(struct nand_chip *chip, int chipnr, static const struct nand_controller_ops mxic_nand_controller_ops = { .exec_op = mxic_nfc_exec_op, - .setup_data_interface = mxic_nfc_setup_data_interface, + .setup_interface = mxic_nfc_setup_interface, }; static int mxic_nfc_probe(struct platform_device *pdev) diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 45124dbb1835..0c768cb88f96 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -773,7 +773,7 @@ int nand_soft_waitrdy(struct nand_chip *chip, unsigned long timeout_ms) return -ENOTSUPP; /* Wait tWB before polling the STATUS reg. */ - timings = nand_get_sdr_timings(&chip->data_interface); + timings = nand_get_sdr_timings(nand_get_interface_config(chip)); ndelay(PSEC_TO_NSEC(timings->tWB_max)); ret = nand_status_op(chip, NULL); @@ -898,7 +898,7 @@ static bool nand_supports_set_features(struct nand_chip *chip, int addr) } /** - * nand_reset_data_interface - Reset data interface and timings + * nand_reset_interface - Reset data interface and timings * @chip: The NAND chip * @chipnr: Internal die id * @@ -906,11 +906,12 @@ static bool nand_supports_set_features(struct nand_chip *chip, int addr) * * Returns 0 for success or negative error code otherwise. */ -static int nand_reset_data_interface(struct nand_chip *chip, int chipnr) +static int nand_reset_interface(struct nand_chip *chip, int chipnr) { + const struct nand_controller_ops *ops = chip->controller->ops; int ret; - if (!nand_has_setup_data_iface(chip)) + if (!nand_controller_can_setup_interface(chip)) return 0; /* @@ -927,9 +928,9 @@ static int nand_reset_data_interface(struct nand_chip *chip, int chipnr) * timings to timing mode 0. */ - onfi_fill_data_interface(chip, NAND_SDR_IFACE, 0); - ret = chip->controller->ops->setup_data_interface(chip, chipnr, - &chip->data_interface); + chip->current_interface_config = nand_get_reset_interface_config(); + ret = ops->setup_interface(chip, chipnr, + chip->current_interface_config); if (ret) pr_err("Failed to configure data interface to SDR timing mode 0\n"); @@ -937,28 +938,36 @@ static int nand_reset_data_interface(struct nand_chip *chip, int chipnr) } /** - * nand_setup_data_interface - Setup the best data interface and timings + * nand_setup_interface - Setup the best data interface and timings * @chip: The NAND chip * @chipnr: Internal die id * - * Find and configure the best data interface and NAND timings supported by - * the chip and the driver. - * First tries to retrieve supported timing modes from ONFI information, - * and if the NAND chip does not support ONFI, relies on the - * ->onfi_timing_mode_default specified in the nand_ids table. + * Configure what has been reported to be the best data interface and NAND + * timings supported by the chip and the driver. * * Returns 0 for success or negative error code otherwise. */ -static int nand_setup_data_interface(struct nand_chip *chip, int chipnr) +static int nand_setup_interface(struct nand_chip *chip, int chipnr) { - u8 tmode_param[ONFI_SUBFEATURE_PARAM_LEN] = { - chip->onfi_timing_mode_default, - }; + const struct nand_controller_ops *ops = chip->controller->ops; + u8 tmode_param[ONFI_SUBFEATURE_PARAM_LEN] = { }; int ret; - if (!nand_has_setup_data_iface(chip)) + if (!nand_controller_can_setup_interface(chip)) return 0; + /* + * A nand_reset_interface() put both the NAND chip and the NAND + * controller in timings mode 0. If the default mode for this chip is + * also 0, no need to proceed to the change again. Plus, at probe time, + * nand_setup_interface() uses ->set/get_features() which would + * fail anyway as the parameter page is not available yet. + */ + if (!chip->best_interface_config) + return 0; + + tmode_param[0] = chip->best_interface_config->timings.mode; + /* Change the mode on the chip side (if supported by the NAND chip) */ if (nand_supports_set_features(chip, ONFI_FEATURE_ADDR_TIMING_MODE)) { nand_select_target(chip, chipnr); @@ -970,14 +979,13 @@ static int nand_setup_data_interface(struct nand_chip *chip, int chipnr) } /* Change the mode on the controller side */ - ret = chip->controller->ops->setup_data_interface(chip, chipnr, - &chip->data_interface); + ret = ops->setup_interface(chip, chipnr, chip->best_interface_config); if (ret) return ret; /* Check the mode has been accepted by the chip, if supported */ if (!nand_supports_get_features(chip, ONFI_FEATURE_ADDR_TIMING_MODE)) - return 0; + goto update_interface_config; memset(tmode_param, 0, ONFI_SUBFEATURE_PARAM_LEN); nand_select_target(chip, chipnr); @@ -987,12 +995,15 @@ static int nand_setup_data_interface(struct nand_chip *chip, int chipnr) if (ret) goto err_reset_chip; - if (tmode_param[0] != chip->onfi_timing_mode_default) { + if (tmode_param[0] != chip->best_interface_config->timings.mode) { pr_warn("timing mode %d not acknowledged by the NAND chip\n", - chip->onfi_timing_mode_default); + chip->best_interface_config->timings.mode); goto err_reset_chip; } +update_interface_config: + chip->current_interface_config = chip->best_interface_config; + return 0; err_reset_chip: @@ -1000,7 +1011,7 @@ err_reset_chip: * Fallback to mode 0 if the chip explicitly did not ack the chosen * timing mode. */ - nand_reset_data_interface(chip, chipnr); + nand_reset_interface(chip, chipnr); nand_select_target(chip, chipnr); nand_reset_op(chip); nand_deselect_target(chip); @@ -1009,62 +1020,93 @@ err_reset_chip: } /** - * nand_init_data_interface - find the best data interface and timings - * @chip: The NAND chip - * - * Find the best data interface and NAND timings supported by the chip - * and the driver. - * First tries to retrieve supported timing modes from ONFI information, - * and if the NAND chip does not support ONFI, relies on the - * ->onfi_timing_mode_default specified in the nand_ids table. After this - * function nand_chip->data_interface is initialized with the best timing mode - * available. + * nand_choose_best_sdr_timings - Pick up the best SDR timings that both the + * NAND controller and the NAND chip support + * @chip: the NAND chip + * @iface: the interface configuration (can eventually be updated) + * @spec_timings: specific timings, when not fitting the ONFI specification * - * Returns 0 for success or negative error code otherwise. + * If specific timings are provided, use them. Otherwise, retrieve supported + * timing modes from ONFI information. */ -static int nand_init_data_interface(struct nand_chip *chip) +int nand_choose_best_sdr_timings(struct nand_chip *chip, + struct nand_interface_config *iface, + struct nand_sdr_timings *spec_timings) { - int modes, mode, ret; + const struct nand_controller_ops *ops = chip->controller->ops; + int best_mode = 0, mode, ret; - if (!nand_has_setup_data_iface(chip)) - return 0; + iface->type = NAND_SDR_IFACE; - /* - * First try to identify the best timings from ONFI parameters and - * if the NAND does not support ONFI, fallback to the default ONFI - * timing mode. - */ - if (chip->parameters.onfi) { - modes = chip->parameters.onfi->async_timing_mode; - } else { - if (!chip->onfi_timing_mode_default) - return 0; + if (spec_timings) { + iface->timings.sdr = *spec_timings; + iface->timings.mode = onfi_find_closest_sdr_mode(spec_timings); - modes = GENMASK(chip->onfi_timing_mode_default, 0); + /* Verify the controller supports the requested interface */ + ret = ops->setup_interface(chip, NAND_DATA_IFACE_CHECK_ONLY, + iface); + if (!ret) { + chip->best_interface_config = iface; + return ret; + } + + /* Fallback to slower modes */ + best_mode = iface->timings.mode; + } else if (chip->parameters.onfi) { + best_mode = fls(chip->parameters.onfi->async_timing_mode) - 1; } - for (mode = fls(modes) - 1; mode >= 0; mode--) { - ret = onfi_fill_data_interface(chip, NAND_SDR_IFACE, mode); - if (ret) - continue; + for (mode = best_mode; mode >= 0; mode--) { + onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, mode); - /* - * Pass NAND_DATA_IFACE_CHECK_ONLY to only check if the - * controller supports the requested timings. - */ - ret = chip->controller->ops->setup_data_interface(chip, - NAND_DATA_IFACE_CHECK_ONLY, - &chip->data_interface); - if (!ret) { - chip->onfi_timing_mode_default = mode; + ret = ops->setup_interface(chip, NAND_DATA_IFACE_CHECK_ONLY, + iface); + if (!ret) break; - } } + chip->best_interface_config = iface; + return 0; } /** + * nand_choose_interface_config - find the best data interface and timings + * @chip: The NAND chip + * + * Find the best data interface and NAND timings supported by the chip + * and the driver. Eventually let the NAND manufacturer driver propose his own + * set of timings. + * + * After this function nand_chip->interface_config is initialized with the best + * timing mode available. + * + * Returns 0 for success or negative error code otherwise. + */ +static int nand_choose_interface_config(struct nand_chip *chip) +{ + struct nand_interface_config *iface; + int ret; + + if (!nand_controller_can_setup_interface(chip)) + return 0; + + iface = kzalloc(sizeof(*iface), GFP_KERNEL); + if (!iface) + return -ENOMEM; + + if (chip->ops.choose_interface_config) + ret = chip->ops.choose_interface_config(chip, iface); + else + ret = nand_choose_best_sdr_timings(chip, iface, NULL); + + if (ret) + kfree(iface); + + return ret; +} + +/** * nand_fill_column_cycles - fill the column cycles of an address * @chip: The NAND chip * @addrs: Array of address cycles to fill @@ -1122,9 +1164,9 @@ static int nand_sp_exec_read_page_op(struct nand_chip *chip, unsigned int page, unsigned int offset_in_page, void *buf, unsigned int len) { - struct mtd_info *mtd = nand_to_mtd(chip); const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); + struct mtd_info *mtd = nand_to_mtd(chip); u8 addrs[4]; struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_READ0, 0), @@ -1166,7 +1208,7 @@ static int nand_lp_exec_read_page_op(struct nand_chip *chip, unsigned int page, unsigned int len) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); u8 addrs[5]; struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_READ0, 0), @@ -1263,7 +1305,7 @@ int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_PARAM, 0), NAND_OP_ADDR(1, &page, PSEC_TO_NSEC(sdr->tWB_max)), @@ -1318,7 +1360,7 @@ int nand_change_read_column_op(struct nand_chip *chip, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); u8 addrs[2] = {}; struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_RNDOUT, 0), @@ -1392,9 +1434,9 @@ static int nand_exec_prog_page_op(struct nand_chip *chip, unsigned int page, unsigned int offset_in_page, const void *buf, unsigned int len, bool prog) { - struct mtd_info *mtd = nand_to_mtd(chip); const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); + struct mtd_info *mtd = nand_to_mtd(chip); u8 addrs[5] = {}; struct nand_op_instr instrs[] = { /* @@ -1517,7 +1559,7 @@ int nand_prog_page_end_op(struct nand_chip *chip) if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_PAGEPROG, PSEC_TO_NSEC(sdr->tWB_max)), @@ -1624,7 +1666,7 @@ int nand_change_write_column_op(struct nand_chip *chip, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); u8 addrs[2]; struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_RNDIN, 0), @@ -1679,7 +1721,7 @@ int nand_readid_op(struct nand_chip *chip, u8 addr, void *buf, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_READID, 0), NAND_OP_ADDR(1, &addr, PSEC_TO_NSEC(sdr->tADL_min)), @@ -1718,7 +1760,7 @@ int nand_status_op(struct nand_chip *chip, u8 *status) { if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_STATUS, PSEC_TO_NSEC(sdr->tADL_min)), @@ -1787,7 +1829,7 @@ int nand_erase_op(struct nand_chip *chip, unsigned int eraseblock) if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); u8 addrs[3] = { page, page >> 8, page >> 16 }; struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_ERASE1, 0), @@ -1846,7 +1888,7 @@ static int nand_set_features_op(struct nand_chip *chip, u8 feature, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_SET_FEATURES, 0), NAND_OP_ADDR(1, &feature, PSEC_TO_NSEC(sdr->tADL_min)), @@ -1893,7 +1935,7 @@ static int nand_get_features_op(struct nand_chip *chip, u8 feature, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_GET_FEATURES, 0), NAND_OP_ADDR(1, &feature, PSEC_TO_NSEC(sdr->tWB_max)), @@ -1950,7 +1992,7 @@ int nand_reset_op(struct nand_chip *chip) { if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(NAND_CMD_RESET, PSEC_TO_NSEC(sdr->tWB_max)), NAND_OP_WAIT_RDY(PSEC_TO_MSEC(sdr->tRST_max), 0), @@ -2480,17 +2522,16 @@ EXPORT_SYMBOL_GPL(nand_subop_get_data_len); * @chipnr: Internal die id * * Save the timings data structure, then apply SDR timings mode 0 (see - * nand_reset_data_interface for details), do the reset operation, and - * apply back the previous timings. + * nand_reset_interface for details), do the reset operation, and apply + * back the previous timings. * * Returns 0 on success, a negative error code otherwise. */ int nand_reset(struct nand_chip *chip, int chipnr) { - struct nand_data_interface saved_data_intf = chip->data_interface; int ret; - ret = nand_reset_data_interface(chip, chipnr); + ret = nand_reset_interface(chip, chipnr); if (ret) return ret; @@ -2505,18 +2546,7 @@ int nand_reset(struct nand_chip *chip, int chipnr) if (ret) return ret; - /* - * A nand_reset_data_interface() put both the NAND chip and the NAND - * controller in timings mode 0. If the default mode for this chip is - * also 0, no need to proceed to the change again. Plus, at probe time, - * nand_setup_data_interface() uses ->set/get_features() which would - * fail anyway as the parameter page is not available yet. - */ - if (!chip->onfi_timing_mode_default) - return 0; - - chip->data_interface = saved_data_intf; - ret = nand_setup_data_interface(chip, chipnr); + ret = nand_setup_interface(chip, chipnr); if (ret) return ret; @@ -3215,10 +3245,10 @@ static int nand_setup_read_retry(struct nand_chip *chip, int retry_mode) if (retry_mode >= chip->read_retries) return -EINVAL; - if (!chip->setup_read_retry) + if (!chip->ops.setup_read_retry) return -EOPNOTSUPP; - return chip->setup_read_retry(chip, retry_mode); + return chip->ops.setup_read_retry(chip, retry_mode); } static void nand_wait_readrdy(struct nand_chip *chip) @@ -3228,7 +3258,7 @@ static void nand_wait_readrdy(struct nand_chip *chip) if (!(chip->options & NAND_NEED_READRDY)) return; - sdr = nand_get_sdr_timings(&chip->data_interface); + sdr = nand_get_sdr_timings(nand_get_interface_config(chip)); WARN_ON(nand_wait_rdy_op(chip, PSEC_TO_MSEC(sdr->tR_max), 0)); } @@ -4462,8 +4492,8 @@ static int nand_suspend(struct mtd_info *mtd) int ret = 0; mutex_lock(&chip->lock); - if (chip->suspend) - ret = chip->suspend(chip); + if (chip->ops.suspend) + ret = chip->ops.suspend(chip); if (!ret) chip->suspended = 1; mutex_unlock(&chip->lock); @@ -4481,8 +4511,8 @@ static void nand_resume(struct mtd_info *mtd) mutex_lock(&chip->lock); if (chip->suspended) { - if (chip->resume) - chip->resume(chip); + if (chip->ops.resume) + chip->ops.resume(chip); chip->suspended = 0; } else { pr_err("%s called for a chip which is not in suspended state\n", @@ -4511,10 +4541,10 @@ static int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { struct nand_chip *chip = mtd_to_nand(mtd); - if (!chip->lock_area) + if (!chip->ops.lock_area) return -ENOTSUPP; - return chip->lock_area(chip, ofs, len); + return chip->ops.lock_area(chip, ofs, len); } /** @@ -4527,10 +4557,10 @@ static int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { struct nand_chip *chip = mtd_to_nand(mtd); - if (!chip->unlock_area) + if (!chip->ops.unlock_area) return -ENOTSUPP; - return chip->unlock_area(chip, ofs, len); + return chip->ops.unlock_area(chip, ofs, len); } /* Set default functions */ @@ -4743,8 +4773,6 @@ static bool find_full_id_nand(struct nand_chip *chip, chip->options |= type->options; chip->base.eccreq.strength = NAND_ECC_STRENGTH(type); chip->base.eccreq.step_size = NAND_ECC_STEP(type); - chip->onfi_timing_mode_default = - type->onfi_timing_mode_default; chip->parameters.model = kstrdup(type->name, GFP_KERNEL); if (!chip->parameters.model) @@ -4810,9 +4838,9 @@ static void nand_manufacturer_cleanup(struct nand_chip *chip) } static const char * -nand_manufacturer_name(const struct nand_manufacturer *manufacturer) +nand_manufacturer_name(const struct nand_manufacturer_desc *manufacturer_desc) { - return manufacturer ? manufacturer->name : "Unknown"; + return manufacturer_desc ? manufacturer_desc->name : "Unknown"; } /* @@ -4820,7 +4848,7 @@ nand_manufacturer_name(const struct nand_manufacturer *manufacturer) */ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) { - const struct nand_manufacturer *manufacturer; + const struct nand_manufacturer_desc *manufacturer_desc; struct mtd_info *mtd = nand_to_mtd(chip); struct nand_memory_organization *memorg; int busw, ret; @@ -4877,8 +4905,8 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type) chip->id.len = nand_id_len(id_data, ARRAY_SIZE(chip->id.data)); /* Try to identify manufacturer */ - manufacturer = nand_get_manufacturer(maf_id); - chip->manufacturer.desc = manufacturer; + manufacturer_desc = nand_get_manufacturer_desc(maf_id); + chip->manufacturer.desc = manufacturer_desc; if (!type) type = nand_flash_ids; @@ -4957,7 +4985,7 @@ ident_done: */ pr_info("device found, Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n", maf_id, dev_id); - pr_info("%s %s\n", nand_manufacturer_name(manufacturer), + pr_info("%s %s\n", nand_manufacturer_name(manufacturer_desc), mtd->name); pr_warn("bus width %d instead of %d bits\n", busw ? 16 : 8, (chip->options & NAND_BUSWIDTH_16) ? 16 : 8); @@ -4992,7 +5020,7 @@ ident_done: pr_info("device found, Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n", maf_id, dev_id); - pr_info("%s %s\n", nand_manufacturer_name(manufacturer), + pr_info("%s %s\n", nand_manufacturer_name(manufacturer_desc), chip->parameters.model); pr_info("%d MiB, %s, erase size: %d KiB, page size: %d, OOB size: %d\n", (int)(targetsize >> 20), nand_is_slc(chip) ? "SLC" : "MLC", @@ -5185,7 +5213,7 @@ static int nand_scan_ident(struct nand_chip *chip, unsigned int maxchips, mutex_init(&chip->lock); /* Enforce the right timings for reset/detection */ - onfi_fill_data_interface(chip, NAND_SDR_IFACE, 0); + chip->current_interface_config = nand_get_reset_interface_config(); ret = nand_dt_init(chip); if (ret) @@ -5972,16 +6000,16 @@ static int nand_scan_tail(struct nand_chip *chip) if (!mtd->bitflip_threshold) mtd->bitflip_threshold = DIV_ROUND_UP(mtd->ecc_strength * 3, 4); - /* Initialize the ->data_interface field. */ - ret = nand_init_data_interface(chip); + /* Find the fastest data interface for this chip */ + ret = nand_choose_interface_config(chip); if (ret) goto err_nanddev_cleanup; /* Enter fastest possible mode on all dies. */ for (i = 0; i < nanddev_ntargets(&chip->base); i++) { - ret = nand_setup_data_interface(chip, i); + ret = nand_setup_interface(chip, i); if (ret) - goto err_nanddev_cleanup; + goto err_free_interface_config; } /* Check, if we should skip the bad block table scan */ @@ -5991,10 +6019,12 @@ static int nand_scan_tail(struct nand_chip *chip) /* Build bad block table */ ret = nand_create_bbt(chip); if (ret) - goto err_nanddev_cleanup; + goto err_free_interface_config; return 0; +err_free_interface_config: + kfree(chip->best_interface_config); err_nanddev_cleanup: nanddev_cleanup(&chip->base); @@ -6088,6 +6118,9 @@ void nand_cleanup(struct nand_chip *chip) & NAND_BBT_DYNAMICSTRUCT) kfree(chip->badblock_pattern); + /* Free the data interface */ + kfree(chip->best_interface_config); + /* Free manufacturer priv data. */ nand_manufacturer_cleanup(chip); diff --git a/drivers/mtd/nand/raw/nand_bbt.c b/drivers/mtd/nand/raw/nand_bbt.c index 96045d60471e..344a24fd2ca8 100644 --- a/drivers/mtd/nand/raw/nand_bbt.c +++ b/drivers/mtd/nand/raw/nand_bbt.c @@ -1226,7 +1226,7 @@ static int nand_scan_bbt(struct nand_chip *this, struct nand_bbt_descr *bd) return -ENOMEM; /* - * If no primary table decriptor is given, scan the device to build a + * If no primary table descriptor is given, scan the device to build a * memory based bad block table. */ if (!td) { diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c index 7caedaa5b9e5..6d08eb834456 100644 --- a/drivers/mtd/nand/raw/nand_hynix.c +++ b/drivers/mtd/nand/raw/nand_hynix.c @@ -337,7 +337,7 @@ static int hynix_mlc_1xnm_rr_init(struct nand_chip *chip, rr->nregs = nregs; rr->regs = hynix_1xnm_mlc_read_retry_regs; hynix->read_retry = rr; - chip->setup_read_retry = hynix_nand_setup_read_retry; + chip->ops.setup_read_retry = hynix_nand_setup_read_retry; chip->read_retries = nmodes; out: @@ -673,6 +673,15 @@ static void hynix_nand_cleanup(struct nand_chip *chip) nand_set_manufacturer_data(chip, NULL); } +static int +h27ucg8t2atrbc_choose_interface_config(struct nand_chip *chip, + struct nand_interface_config *iface) +{ + onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 4); + + return nand_choose_best_sdr_timings(chip, iface, NULL); +} + static int hynix_nand_init(struct nand_chip *chip) { struct hynix_nand *hynix; @@ -689,6 +698,11 @@ static int hynix_nand_init(struct nand_chip *chip) nand_set_manufacturer_data(chip, hynix); + if (!strncmp("H27UCG8T2ATR-BC", chip->parameters.model, + sizeof("H27UCG8T2ATR-BC") - 1)) + chip->ops.choose_interface_config = + h27ucg8t2atrbc_choose_interface_config; + ret = hynix_nand_rr_init(chip); if (ret) hynix_nand_cleanup(chip); diff --git a/drivers/mtd/nand/raw/nand_ids.c b/drivers/mtd/nand/raw/nand_ids.c index ba27902fc54b..b9945791a9d7 100644 --- a/drivers/mtd/nand/raw/nand_ids.c +++ b/drivers/mtd/nand/raw/nand_ids.c @@ -28,8 +28,7 @@ struct nand_flash_dev nand_flash_ids[] = { */ {"TC58NVG0S3E 1G 3.3V 8-bit", { .id = {0x98, 0xd1, 0x90, 0x15, 0x76, 0x14, 0x01, 0x00} }, - SZ_2K, SZ_128, SZ_128K, 0, 8, 64, NAND_ECC_INFO(1, SZ_512), - 2 }, + SZ_2K, SZ_128, SZ_128K, 0, 8, 64, NAND_ECC_INFO(1, SZ_512), }, {"TC58NVG2S0F 4G 3.3V 8-bit", { .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x15, 0x01, 0x08} }, SZ_4K, SZ_512, SZ_256K, 0, 8, 224, NAND_ECC_INFO(4, SZ_512) }, @@ -51,7 +50,10 @@ struct nand_flash_dev nand_flash_ids[] = { {"H27UCG8T2ATR-BC 64G 3.3V 8-bit", { .id = {0xad, 0xde, 0x94, 0xda, 0x74, 0xc4} }, SZ_8K, SZ_8K, SZ_2M, NAND_NEED_SCRAMBLING, 6, 640, - NAND_ECC_INFO(40, SZ_1K), 4 }, + NAND_ECC_INFO(40, SZ_1K) }, + {"TH58NVG2S3HBAI4 4G 3.3V 8-bit", + { .id = {0x98, 0xdc, 0x91, 0x15, 0x76} }, + SZ_2K, SZ_512, SZ_128K, 0, 5, 128, NAND_ECC_INFO(8, SZ_512) }, LEGACY_ID_NAND("NAND 4MiB 5V 8-bit", 0x6B, 4, SZ_8K, SP_OPTIONS), LEGACY_ID_NAND("NAND 4MiB 3,3V 8-bit", 0xE3, 4, SZ_8K, SP_OPTIONS), @@ -166,7 +168,7 @@ struct nand_flash_dev nand_flash_ids[] = { }; /* Manufacturer IDs */ -static const struct nand_manufacturer nand_manufacturers[] = { +static const struct nand_manufacturer_desc nand_manufacturer_descs[] = { {NAND_MFR_AMD, "AMD/Spansion", &amd_nand_manuf_ops}, {NAND_MFR_ATO, "ATO"}, {NAND_MFR_EON, "Eon"}, @@ -186,20 +188,20 @@ static const struct nand_manufacturer nand_manufacturers[] = { }; /** - * nand_get_manufacturer - Get manufacturer information from the manufacturer - * ID + * nand_get_manufacturer_desc - Get manufacturer information from the + * manufacturer ID * @id: manufacturer ID * - * Returns a pointer a nand_manufacturer object if the manufacturer is defined + * Returns a nand_manufacturer_desc object if the manufacturer is defined * in the NAND manufacturers database, NULL otherwise. */ -const struct nand_manufacturer *nand_get_manufacturer(u8 id) +const struct nand_manufacturer_desc *nand_get_manufacturer_desc(u8 id) { int i; - for (i = 0; i < ARRAY_SIZE(nand_manufacturers); i++) - if (nand_manufacturers[i].id == id) - return &nand_manufacturers[i]; + for (i = 0; i < ARRAY_SIZE(nand_manufacturer_descs); i++) + if (nand_manufacturer_descs[i].id == id) + return &nand_manufacturer_descs[i]; return NULL; } diff --git a/drivers/mtd/nand/raw/nand_legacy.c b/drivers/mtd/nand/raw/nand_legacy.c index d64791c06a97..2bcc03714432 100644 --- a/drivers/mtd/nand/raw/nand_legacy.c +++ b/drivers/mtd/nand/raw/nand_legacy.c @@ -354,6 +354,9 @@ static void nand_command(struct nand_chip *chip, unsigned int command, static void nand_ccs_delay(struct nand_chip *chip) { + const struct nand_sdr_timings *sdr = + nand_get_sdr_timings(nand_get_interface_config(chip)); + /* * The controller already takes care of waiting for tCCS when the RNDIN * or RNDOUT command is sent, return directly. @@ -365,8 +368,8 @@ static void nand_ccs_delay(struct nand_chip *chip) * Wait tCCS_min if it is correctly defined, otherwise wait 500ns * (which should be safe for all NANDs). */ - if (nand_has_setup_data_iface(chip)) - ndelay(chip->data_interface.timings.sdr.tCCS_min / 1000); + if (nand_controller_can_setup_interface(chip)) + ndelay(sdr->tCCS_min / 1000); else ndelay(500); } diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c index 09c254c97b5c..1472f925f386 100644 --- a/drivers/mtd/nand/raw/nand_macronix.c +++ b/drivers/mtd/nand/raw/nand_macronix.c @@ -130,7 +130,7 @@ static void macronix_nand_onfi_init(struct nand_chip *chip) return; chip->read_retries = MACRONIX_NUM_READ_RETRY_MODES; - chip->setup_read_retry = macronix_nand_setup_read_retry; + chip->ops.setup_read_retry = macronix_nand_setup_read_retry; if (p->supports_set_get_features) { bitmap_set(p->set_feature_list, @@ -242,8 +242,8 @@ static void macronix_nand_block_protection_support(struct nand_chip *chip) bitmap_set(chip->parameters.set_feature_list, ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1); - chip->lock_area = mxic_nand_lock; - chip->unlock_area = mxic_nand_unlock; + chip->ops.lock_area = mxic_nand_lock; + chip->ops.unlock_area = mxic_nand_unlock; } static int nand_power_down_op(struct nand_chip *chip) @@ -312,8 +312,8 @@ static void macronix_nand_deep_power_down_support(struct nand_chip *chip) if (i < 0) return; - chip->suspend = mxic_nand_suspend; - chip->resume = mxic_nand_resume; + chip->ops.suspend = mxic_nand_suspend; + chip->ops.resume = mxic_nand_resume; } static int macronix_nand_init(struct nand_chip *chip) diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c index 3589b4fce0d4..4385092a9325 100644 --- a/drivers/mtd/nand/raw/nand_micron.c +++ b/drivers/mtd/nand/raw/nand_micron.c @@ -84,7 +84,7 @@ static int micron_nand_onfi_init(struct nand_chip *chip) struct nand_onfi_vendor_micron *micron = (void *)p->onfi->vendor; chip->read_retries = micron->read_retry_options; - chip->setup_read_retry = micron_nand_setup_read_retry; + chip->ops.setup_read_retry = micron_nand_setup_read_retry; } if (p->supports_set_get_features) { diff --git a/drivers/mtd/nand/raw/nand_timings.c b/drivers/mtd/nand/raw/nand_timings.c index 36d21be3dfe5..94d832646487 100644 --- a/drivers/mtd/nand/raw/nand_timings.c +++ b/drivers/mtd/nand/raw/nand_timings.c @@ -12,7 +12,14 @@ #define ONFI_DYN_TIMING_MAX U16_MAX -static const struct nand_data_interface onfi_sdr_timings[] = { +/* + * For non-ONFI chips we use the highest possible value for tPROG and tBERS. + * tR and tCCS will take the default values precised in the ONFI specification + * for timing mode 0, respectively 200us and 500ns. + * + * These four values are tweaked to be more accurate in the case of ONFI chips. + */ +static const struct nand_interface_config onfi_sdr_timings[] = { /* Mode 0 */ { .type = NAND_SDR_IFACE, @@ -20,6 +27,8 @@ static const struct nand_data_interface onfi_sdr_timings[] = { .timings.sdr = { .tCCS_min = 500000, .tR_max = 200000000, + .tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX, + .tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX, .tADL_min = 400000, .tALH_min = 20000, .tALS_min = 50000, @@ -63,6 +72,8 @@ static const struct nand_data_interface onfi_sdr_timings[] = { .timings.sdr = { .tCCS_min = 500000, .tR_max = 200000000, + .tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX, + .tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX, .tADL_min = 400000, .tALH_min = 10000, .tALS_min = 25000, @@ -106,6 +117,8 @@ static const struct nand_data_interface onfi_sdr_timings[] = { .timings.sdr = { .tCCS_min = 500000, .tR_max = 200000000, + .tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX, + .tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX, .tADL_min = 400000, .tALH_min = 10000, .tALS_min = 15000, @@ -149,6 +162,8 @@ static const struct nand_data_interface onfi_sdr_timings[] = { .timings.sdr = { .tCCS_min = 500000, .tR_max = 200000000, + .tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX, + .tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX, .tADL_min = 400000, .tALH_min = 5000, .tALS_min = 10000, @@ -192,6 +207,8 @@ static const struct nand_data_interface onfi_sdr_timings[] = { .timings.sdr = { .tCCS_min = 500000, .tR_max = 200000000, + .tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX, + .tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX, .tADL_min = 400000, .tALH_min = 5000, .tALS_min = 10000, @@ -235,6 +252,8 @@ static const struct nand_data_interface onfi_sdr_timings[] = { .timings.sdr = { .tCCS_min = 500000, .tR_max = 200000000, + .tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX, + .tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX, .tADL_min = 400000, .tALH_min = 5000, .tALS_min = 10000, @@ -273,23 +292,79 @@ static const struct nand_data_interface onfi_sdr_timings[] = { }, }; +/* All NAND chips share the same reset data interface: SDR mode 0 */ +const struct nand_interface_config *nand_get_reset_interface_config(void) +{ + return &onfi_sdr_timings[0]; +} + +/** + * onfi_find_closest_sdr_mode - Derive the closest ONFI SDR timing mode given a + * set of timings + * @spec_timings: the timings to challenge + */ +unsigned int +onfi_find_closest_sdr_mode(const struct nand_sdr_timings *spec_timings) +{ + const struct nand_sdr_timings *onfi_timings; + int mode; + + for (mode = ARRAY_SIZE(onfi_sdr_timings) - 1; mode > 0; mode--) { + onfi_timings = &onfi_sdr_timings[mode].timings.sdr; + + if (spec_timings->tCCS_min <= onfi_timings->tCCS_min && + spec_timings->tADL_min <= onfi_timings->tADL_min && + spec_timings->tALH_min <= onfi_timings->tALH_min && + spec_timings->tALS_min <= onfi_timings->tALS_min && + spec_timings->tAR_min <= onfi_timings->tAR_min && + spec_timings->tCEH_min <= onfi_timings->tCEH_min && + spec_timings->tCH_min <= onfi_timings->tCH_min && + spec_timings->tCLH_min <= onfi_timings->tCLH_min && + spec_timings->tCLR_min <= onfi_timings->tCLR_min && + spec_timings->tCLS_min <= onfi_timings->tCLS_min && + spec_timings->tCOH_min <= onfi_timings->tCOH_min && + spec_timings->tCS_min <= onfi_timings->tCS_min && + spec_timings->tDH_min <= onfi_timings->tDH_min && + spec_timings->tDS_min <= onfi_timings->tDS_min && + spec_timings->tIR_min <= onfi_timings->tIR_min && + spec_timings->tRC_min <= onfi_timings->tRC_min && + spec_timings->tREH_min <= onfi_timings->tREH_min && + spec_timings->tRHOH_min <= onfi_timings->tRHOH_min && + spec_timings->tRHW_min <= onfi_timings->tRHW_min && + spec_timings->tRLOH_min <= onfi_timings->tRLOH_min && + spec_timings->tRP_min <= onfi_timings->tRP_min && + spec_timings->tRR_min <= onfi_timings->tRR_min && + spec_timings->tWC_min <= onfi_timings->tWC_min && + spec_timings->tWH_min <= onfi_timings->tWH_min && + spec_timings->tWHR_min <= onfi_timings->tWHR_min && + spec_timings->tWP_min <= onfi_timings->tWP_min && + spec_timings->tWW_min <= onfi_timings->tWW_min) + return mode; + } + + return 0; +} + /** - * onfi_fill_data_interface - [NAND Interface] Initialize a data interface from - * given ONFI mode - * @mode: The ONFI timing mode + * onfi_fill_interface_config - Initialize an interface config from a given + * ONFI mode + * @chip: The NAND chip + * @iface: The interface configuration to fill + * @type: The interface type + * @timing_mode: The ONFI timing mode */ -int onfi_fill_data_interface(struct nand_chip *chip, - enum nand_data_interface_type type, - int timing_mode) +void onfi_fill_interface_config(struct nand_chip *chip, + struct nand_interface_config *iface, + enum nand_interface_type type, + unsigned int timing_mode) { - struct nand_data_interface *iface = &chip->data_interface; struct onfi_params *onfi = chip->parameters.onfi; - if (type != NAND_SDR_IFACE) - return -EINVAL; + if (WARN_ON(type != NAND_SDR_IFACE)) + return; - if (timing_mode < 0 || timing_mode >= ARRAY_SIZE(onfi_sdr_timings)) - return -EINVAL; + if (WARN_ON(timing_mode >= ARRAY_SIZE(onfi_sdr_timings))) + return; *iface = onfi_sdr_timings[timing_mode]; @@ -308,22 +383,5 @@ int onfi_fill_data_interface(struct nand_chip *chip, /* nanoseconds -> picoseconds */ timings->tCCS_min = 1000UL * onfi->tCCS; - } else { - struct nand_sdr_timings *timings = &iface->timings.sdr; - /* - * For non-ONFI chips we use the highest possible value for - * tPROG and tBERS. tR and tCCS will take the default values - * precised in the ONFI specification for timing mode 0, - * respectively 200us and 500ns. - */ - - /* microseconds -> picoseconds */ - timings->tPROG_max = 1000000ULL * ONFI_DYN_TIMING_MAX; - timings->tBERS_max = 1000000ULL * ONFI_DYN_TIMING_MAX; - - timings->tR_max = 200000000; - timings->tCCS_min = 500000; } - - return 0; } diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c index ae069905d7e4..f746c19f3b2c 100644 --- a/drivers/mtd/nand/raw/nand_toshiba.c +++ b/drivers/mtd/nand/raw/nand_toshiba.c @@ -33,7 +33,7 @@ static int toshiba_nand_benand_read_eccstatus_op(struct nand_chip *chip, if (nand_has_exec_op(chip)) { const struct nand_sdr_timings *sdr = - nand_get_sdr_timings(&chip->data_interface); + nand_get_sdr_timings(nand_get_interface_config(chip)); struct nand_op_instr instrs[] = { NAND_OP_CMD(TOSHIBA_NAND_CMD_ECC_STATUS_READ, PSEC_TO_NSEC(sdr->tADL_min)), @@ -194,17 +194,79 @@ static void toshiba_nand_decode_id(struct nand_chip *chip) } } +static int +tc58teg5dclta00_choose_interface_config(struct nand_chip *chip, + struct nand_interface_config *iface) +{ + onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 5); + + return nand_choose_best_sdr_timings(chip, iface, NULL); +} + +static int +tc58nvg0s3e_choose_interface_config(struct nand_chip *chip, + struct nand_interface_config *iface) +{ + onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 2); + + return nand_choose_best_sdr_timings(chip, iface, NULL); +} + +static int +th58nvg2s3hbai4_choose_interface_config(struct nand_chip *chip, + struct nand_interface_config *iface) +{ + struct nand_sdr_timings *sdr = &iface->timings.sdr; + + /* Start with timings from the closest timing mode, mode 4. */ + onfi_fill_interface_config(chip, iface, NAND_SDR_IFACE, 4); + + /* Patch timings that differ from mode 4. */ + sdr->tALS_min = 12000; + sdr->tCHZ_max = 20000; + sdr->tCLS_min = 12000; + sdr->tCOH_min = 0; + sdr->tDS_min = 12000; + sdr->tRHOH_min = 25000; + sdr->tRHW_min = 30000; + sdr->tRHZ_max = 60000; + sdr->tWHR_min = 60000; + + /* Patch timings not part of onfi timing mode. */ + sdr->tPROG_max = 700000000; + sdr->tBERS_max = 5000000000; + + return nand_choose_best_sdr_timings(chip, iface, sdr); +} + static int tc58teg5dclta00_init(struct nand_chip *chip) { struct mtd_info *mtd = nand_to_mtd(chip); - chip->onfi_timing_mode_default = 5; + chip->ops.choose_interface_config = + &tc58teg5dclta00_choose_interface_config; chip->options |= NAND_NEED_SCRAMBLING; mtd_set_pairing_scheme(mtd, &dist3_pairing_scheme); return 0; } +static int tc58nvg0s3e_init(struct nand_chip *chip) +{ + chip->ops.choose_interface_config = + &tc58nvg0s3e_choose_interface_config; + + return 0; +} + +static int th58nvg2s3hbai4_init(struct nand_chip *chip) +{ + chip->ops.choose_interface_config = + &th58nvg2s3hbai4_choose_interface_config; + + return 0; +} + static int toshiba_nand_init(struct nand_chip *chip) { if (nand_is_slc(chip)) @@ -217,6 +279,12 @@ static int toshiba_nand_init(struct nand_chip *chip) if (!strcmp("TC58TEG5DCLTA00", chip->parameters.model)) tc58teg5dclta00_init(chip); + if (!strncmp("TC58NVG0S3E", chip->parameters.model, + sizeof("TC58NVG0S3E") - 1)) + tc58nvg0s3e_init(chip); + if (!strncmp("TH58NVG2S3HBAI4", chip->parameters.model, + sizeof("TH58NVG2S3HBAI4") - 1)) + th58nvg2s3hbai4_init(chip); return 0; } diff --git a/drivers/mtd/nand/raw/omap_elm.c b/drivers/mtd/nand/raw/omap_elm.c index 078b1022ac2a..4b799521a427 100644 --- a/drivers/mtd/nand/raw/omap_elm.c +++ b/drivers/mtd/nand/raw/omap_elm.c @@ -2,7 +2,7 @@ /* * Error Location Module * - * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/ */ #define DRIVER_NAME "omap-elm" diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index f1daf330951b..bd7a7251429b 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -459,11 +459,13 @@ struct qcom_nand_host { * among different NAND controllers. * @ecc_modes - ecc mode for NAND * @is_bam - whether NAND controller is using BAM + * @is_qpic - whether NAND CTRL is part of qpic IP * @dev_cmd_reg_start - NAND_DEV_CMD_* registers starting offset */ struct qcom_nandc_props { u32 ecc_modes; bool is_bam; + bool is_qpic; u32 dev_cmd_reg_start; }; @@ -2774,14 +2776,24 @@ static int qcom_nandc_setup(struct qcom_nand_controller *nandc) u32 nand_ctrl; /* kill onenand */ - nandc_write(nandc, SFLASHC_BURST_CFG, 0); + if (!nandc->props->is_qpic) + nandc_write(nandc, SFLASHC_BURST_CFG, 0); nandc_write(nandc, dev_cmd_reg_addr(nandc, NAND_DEV_CMD_VLD), NAND_DEV_CMD_VLD_VAL); /* enable ADM or BAM DMA */ if (nandc->props->is_bam) { nand_ctrl = nandc_read(nandc, NAND_CTRL); - nandc_write(nandc, NAND_CTRL, nand_ctrl | BAM_MODE_EN); + + /* + *NAND_CTRL is an operational registers, and CPU + * access to operational registers are read only + * in BAM mode. So update the NAND_CTRL register + * only if it is not in BAM mode. In most cases BAM + * mode will be enabled in bootloader + */ + if (!(nand_ctrl & BAM_MODE_EN)) + nandc_write(nandc, NAND_CTRL, nand_ctrl | BAM_MODE_EN); } else { nandc_write(nandc, NAND_FLASH_CHIP_SELECT, DM_EN); } @@ -3035,12 +3047,14 @@ static const struct qcom_nandc_props ipq806x_nandc_props = { static const struct qcom_nandc_props ipq4019_nandc_props = { .ecc_modes = (ECC_BCH_4BIT | ECC_BCH_8BIT), .is_bam = true, + .is_qpic = true, .dev_cmd_reg_start = 0x0, }; static const struct qcom_nandc_props ipq8074_nandc_props = { .ecc_modes = (ECC_BCH_4BIT | ECC_BCH_8BIT), .is_bam = true, + .is_qpic = true, .dev_cmd_reg_start = 0x7000, }; diff --git a/drivers/mtd/nand/raw/s3c2410.c b/drivers/mtd/nand/raw/s3c2410.c index d0dd0c446e4d..105522205979 100644 --- a/drivers/mtd/nand/raw/s3c2410.c +++ b/drivers/mtd/nand/raw/s3c2410.c @@ -808,8 +808,8 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, return -ENODEV; } -static int s3c2410_nand_setup_data_interface(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf) +static int s3c2410_nand_setup_interface(struct nand_chip *chip, int csline, + const struct nand_interface_config *conf) { struct mtd_info *mtd = nand_to_mtd(chip); struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); @@ -999,7 +999,7 @@ static int s3c2410_nand_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops s3c24xx_nand_controller_ops = { .attach_chip = s3c2410_nand_attach_chip, - .setup_data_interface = s3c2410_nand_setup_data_interface, + .setup_interface = s3c2410_nand_setup_interface, }; static const struct of_device_id s3c24xx_nand_dt_ids[] = { diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c index 65c9d17b25a3..7f4546ae9130 100644 --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c @@ -11,10 +11,13 @@ #include <linux/errno.h> #include <linux/interrupt.h> #include <linux/iopoll.h> +#include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/mtd/rawnand.h> +#include <linux/of_address.h> #include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/reset.h> /* Bad block marker length */ @@ -242,7 +245,8 @@ struct stm32_fmc2_nfc { struct nand_controller base; struct stm32_fmc2_nand nand; struct device *dev; - void __iomem *io_base; + struct device *cdev; + struct regmap *regmap; void __iomem *data_base[FMC2_MAX_CE]; void __iomem *cmd_base[FMC2_MAX_CE]; void __iomem *addr_base[FMC2_MAX_CE]; @@ -277,40 +281,37 @@ static void stm32_fmc2_nfc_timings_init(struct nand_chip *chip) struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct stm32_fmc2_nand *nand = to_fmc2_nand(chip); struct stm32_fmc2_timings *timings = &nand->timings; - u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); u32 pmem, patt; /* Set tclr/tar timings */ - pcr &= ~FMC2_PCR_TCLR; - pcr |= FIELD_PREP(FMC2_PCR_TCLR, timings->tclr); - pcr &= ~FMC2_PCR_TAR; - pcr |= FIELD_PREP(FMC2_PCR_TAR, timings->tar); + regmap_update_bits(nfc->regmap, FMC2_PCR, + FMC2_PCR_TCLR | FMC2_PCR_TAR, + FIELD_PREP(FMC2_PCR_TCLR, timings->tclr) | + FIELD_PREP(FMC2_PCR_TAR, timings->tar)); /* Set tset/twait/thold/thiz timings in common bank */ pmem = FIELD_PREP(FMC2_PMEM_MEMSET, timings->tset_mem); pmem |= FIELD_PREP(FMC2_PMEM_MEMWAIT, timings->twait); pmem |= FIELD_PREP(FMC2_PMEM_MEMHOLD, timings->thold_mem); pmem |= FIELD_PREP(FMC2_PMEM_MEMHIZ, timings->thiz); + regmap_write(nfc->regmap, FMC2_PMEM, pmem); /* Set tset/twait/thold/thiz timings in attribut bank */ patt = FIELD_PREP(FMC2_PATT_ATTSET, timings->tset_att); patt |= FIELD_PREP(FMC2_PATT_ATTWAIT, timings->twait); patt |= FIELD_PREP(FMC2_PATT_ATTHOLD, timings->thold_att); patt |= FIELD_PREP(FMC2_PATT_ATTHIZ, timings->thiz); - - writel_relaxed(pcr, nfc->io_base + FMC2_PCR); - writel_relaxed(pmem, nfc->io_base + FMC2_PMEM); - writel_relaxed(patt, nfc->io_base + FMC2_PATT); + regmap_write(nfc->regmap, FMC2_PATT, patt); } static void stm32_fmc2_nfc_setup(struct nand_chip *chip) { struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); - u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); + u32 pcr = 0, pcr_mask; /* Configure ECC algorithm (default configuration is Hamming) */ - pcr &= ~FMC2_PCR_ECCALG; - pcr &= ~FMC2_PCR_BCHECC; + pcr_mask = FMC2_PCR_ECCALG; + pcr_mask |= FMC2_PCR_BCHECC; if (chip->ecc.strength == FMC2_ECC_BCH8) { pcr |= FMC2_PCR_ECCALG; pcr |= FMC2_PCR_BCHECC; @@ -319,15 +320,15 @@ static void stm32_fmc2_nfc_setup(struct nand_chip *chip) } /* Set buswidth */ - pcr &= ~FMC2_PCR_PWID; + pcr_mask |= FMC2_PCR_PWID; if (chip->options & NAND_BUSWIDTH_16) pcr |= FIELD_PREP(FMC2_PCR_PWID, FMC2_PCR_PWID_BUSWIDTH_16); /* Set ECC sector size */ - pcr &= ~FMC2_PCR_ECCSS; + pcr_mask |= FMC2_PCR_ECCSS; pcr |= FIELD_PREP(FMC2_PCR_ECCSS, FMC2_PCR_ECCSS_512); - writel_relaxed(pcr, nfc->io_base + FMC2_PCR); + regmap_update_bits(nfc->regmap, FMC2_PCR, pcr_mask, pcr); } static int stm32_fmc2_nfc_select_chip(struct nand_chip *chip, int chipnr) @@ -393,81 +394,63 @@ static int stm32_fmc2_nfc_select_chip(struct nand_chip *chip, int chipnr) static void stm32_fmc2_nfc_set_buswidth_16(struct stm32_fmc2_nfc *nfc, bool set) { - u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); + u32 pcr; - pcr &= ~FMC2_PCR_PWID; - if (set) - pcr |= FIELD_PREP(FMC2_PCR_PWID, FMC2_PCR_PWID_BUSWIDTH_16); - writel_relaxed(pcr, nfc->io_base + FMC2_PCR); + pcr = set ? FIELD_PREP(FMC2_PCR_PWID, FMC2_PCR_PWID_BUSWIDTH_16) : + FIELD_PREP(FMC2_PCR_PWID, FMC2_PCR_PWID_BUSWIDTH_8); + + regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_PWID, pcr); } static void stm32_fmc2_nfc_set_ecc(struct stm32_fmc2_nfc *nfc, bool enable) { - u32 pcr = readl(nfc->io_base + FMC2_PCR); - - pcr &= ~FMC2_PCR_ECCEN; - if (enable) - pcr |= FMC2_PCR_ECCEN; - writel(pcr, nfc->io_base + FMC2_PCR); + regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_ECCEN, + enable ? FMC2_PCR_ECCEN : 0); } -static inline void stm32_fmc2_nfc_enable_seq_irq(struct stm32_fmc2_nfc *nfc) +static void stm32_fmc2_nfc_enable_seq_irq(struct stm32_fmc2_nfc *nfc) { - u32 csqier = readl_relaxed(nfc->io_base + FMC2_CSQIER); - - csqier |= FMC2_CSQIER_TCIE; - nfc->irq_state = FMC2_IRQ_SEQ; - writel_relaxed(csqier, nfc->io_base + FMC2_CSQIER); + regmap_update_bits(nfc->regmap, FMC2_CSQIER, + FMC2_CSQIER_TCIE, FMC2_CSQIER_TCIE); } -static inline void stm32_fmc2_nfc_disable_seq_irq(struct stm32_fmc2_nfc *nfc) +static void stm32_fmc2_nfc_disable_seq_irq(struct stm32_fmc2_nfc *nfc) { - u32 csqier = readl_relaxed(nfc->io_base + FMC2_CSQIER); - - csqier &= ~FMC2_CSQIER_TCIE; - - writel_relaxed(csqier, nfc->io_base + FMC2_CSQIER); + regmap_update_bits(nfc->regmap, FMC2_CSQIER, FMC2_CSQIER_TCIE, 0); nfc->irq_state = FMC2_IRQ_UNKNOWN; } -static inline void stm32_fmc2_nfc_clear_seq_irq(struct stm32_fmc2_nfc *nfc) +static void stm32_fmc2_nfc_clear_seq_irq(struct stm32_fmc2_nfc *nfc) { - writel_relaxed(FMC2_CSQICR_CLEAR_IRQ, nfc->io_base + FMC2_CSQICR); + regmap_write(nfc->regmap, FMC2_CSQICR, FMC2_CSQICR_CLEAR_IRQ); } -static inline void stm32_fmc2_nfc_enable_bch_irq(struct stm32_fmc2_nfc *nfc, - int mode) +static void stm32_fmc2_nfc_enable_bch_irq(struct stm32_fmc2_nfc *nfc, int mode) { - u32 bchier = readl_relaxed(nfc->io_base + FMC2_BCHIER); + nfc->irq_state = FMC2_IRQ_BCH; if (mode == NAND_ECC_WRITE) - bchier |= FMC2_BCHIER_EPBRIE; + regmap_update_bits(nfc->regmap, FMC2_BCHIER, + FMC2_BCHIER_EPBRIE, FMC2_BCHIER_EPBRIE); else - bchier |= FMC2_BCHIER_DERIE; - - nfc->irq_state = FMC2_IRQ_BCH; - - writel_relaxed(bchier, nfc->io_base + FMC2_BCHIER); + regmap_update_bits(nfc->regmap, FMC2_BCHIER, + FMC2_BCHIER_DERIE, FMC2_BCHIER_DERIE); } -static inline void stm32_fmc2_nfc_disable_bch_irq(struct stm32_fmc2_nfc *nfc) +static void stm32_fmc2_nfc_disable_bch_irq(struct stm32_fmc2_nfc *nfc) { - u32 bchier = readl_relaxed(nfc->io_base + FMC2_BCHIER); - - bchier &= ~FMC2_BCHIER_DERIE; - bchier &= ~FMC2_BCHIER_EPBRIE; - - writel_relaxed(bchier, nfc->io_base + FMC2_BCHIER); + regmap_update_bits(nfc->regmap, FMC2_BCHIER, + FMC2_BCHIER_DERIE | FMC2_BCHIER_EPBRIE, 0); nfc->irq_state = FMC2_IRQ_UNKNOWN; } -static inline void stm32_fmc2_nfc_clear_bch_irq(struct stm32_fmc2_nfc *nfc) +static void stm32_fmc2_nfc_clear_bch_irq(struct stm32_fmc2_nfc *nfc) { - writel_relaxed(FMC2_BCHICR_CLEAR_IRQ, nfc->io_base + FMC2_BCHICR); + regmap_write(nfc->regmap, FMC2_BCHICR, FMC2_BCHICR_CLEAR_IRQ); } /* @@ -481,13 +464,8 @@ static void stm32_fmc2_nfc_hwctl(struct nand_chip *chip, int mode) stm32_fmc2_nfc_set_ecc(nfc, false); if (chip->ecc.strength != FMC2_ECC_HAM) { - u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); - - if (mode == NAND_ECC_WRITE) - pcr |= FMC2_PCR_WEN; - else - pcr &= ~FMC2_PCR_WEN; - writel_relaxed(pcr, nfc->io_base + FMC2_PCR); + regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_WEN, + mode == NAND_ECC_WRITE ? FMC2_PCR_WEN : 0); reinit_completion(&nfc->complete); stm32_fmc2_nfc_clear_bch_irq(nfc); @@ -502,7 +480,7 @@ static void stm32_fmc2_nfc_hwctl(struct nand_chip *chip, int mode) * ECC is 3 bytes for 512 bytes of data (supports error correction up to * max of 1-bit) */ -static inline void stm32_fmc2_nfc_ham_set_ecc(const u32 ecc_sta, u8 *ecc) +static void stm32_fmc2_nfc_ham_set_ecc(const u32 ecc_sta, u8 *ecc) { ecc[0] = ecc_sta; ecc[1] = ecc_sta >> 8; @@ -516,15 +494,15 @@ static int stm32_fmc2_nfc_ham_calculate(struct nand_chip *chip, const u8 *data, u32 sr, heccr; int ret; - ret = readl_relaxed_poll_timeout(nfc->io_base + FMC2_SR, - sr, sr & FMC2_SR_NWRF, 1, - 1000 * FMC2_TIMEOUT_MS); + ret = regmap_read_poll_timeout(nfc->regmap, FMC2_SR, sr, + sr & FMC2_SR_NWRF, 1, + 1000 * FMC2_TIMEOUT_MS); if (ret) { dev_err(nfc->dev, "ham timeout\n"); return ret; } - heccr = readl_relaxed(nfc->io_base + FMC2_HECCR); + regmap_read(nfc->regmap, FMC2_HECCR, &heccr); stm32_fmc2_nfc_ham_set_ecc(heccr, ecc); stm32_fmc2_nfc_set_ecc(nfc, false); @@ -603,13 +581,13 @@ static int stm32_fmc2_nfc_bch_calculate(struct nand_chip *chip, const u8 *data, } /* Read parity bits */ - bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR1); + regmap_read(nfc->regmap, FMC2_BCHPBR1, &bchpbr); ecc[0] = bchpbr; ecc[1] = bchpbr >> 8; ecc[2] = bchpbr >> 16; ecc[3] = bchpbr >> 24; - bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR2); + regmap_read(nfc->regmap, FMC2_BCHPBR2, &bchpbr); ecc[4] = bchpbr; ecc[5] = bchpbr >> 8; ecc[6] = bchpbr >> 16; @@ -617,13 +595,13 @@ static int stm32_fmc2_nfc_bch_calculate(struct nand_chip *chip, const u8 *data, if (chip->ecc.strength == FMC2_ECC_BCH8) { ecc[7] = bchpbr >> 24; - bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR3); + regmap_read(nfc->regmap, FMC2_BCHPBR3, &bchpbr); ecc[8] = bchpbr; ecc[9] = bchpbr >> 8; ecc[10] = bchpbr >> 16; ecc[11] = bchpbr >> 24; - bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR4); + regmap_read(nfc->regmap, FMC2_BCHPBR4, &bchpbr); ecc[12] = bchpbr; } @@ -685,11 +663,7 @@ static int stm32_fmc2_nfc_bch_correct(struct nand_chip *chip, u8 *dat, return -ETIMEDOUT; } - ecc_sta[0] = readl_relaxed(nfc->io_base + FMC2_BCHDSR0); - ecc_sta[1] = readl_relaxed(nfc->io_base + FMC2_BCHDSR1); - ecc_sta[2] = readl_relaxed(nfc->io_base + FMC2_BCHDSR2); - ecc_sta[3] = readl_relaxed(nfc->io_base + FMC2_BCHDSR3); - ecc_sta[4] = readl_relaxed(nfc->io_base + FMC2_BCHDSR4); + regmap_bulk_read(nfc->regmap, FMC2_BCHDSR0, ecc_sta, 5); stm32_fmc2_nfc_set_ecc(nfc, false); @@ -764,30 +738,29 @@ static void stm32_fmc2_nfc_rw_page_init(struct nand_chip *chip, int page, { struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct mtd_info *mtd = nand_to_mtd(chip); - u32 csqcfgr1, csqcfgr2, csqcfgr3; - u32 csqar1, csqar2; u32 ecc_offset = mtd->writesize + FMC2_BBM_LEN; - u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); + /* + * cfg[0] => csqcfgr1, cfg[1] => csqcfgr2, cfg[2] => csqcfgr3 + * cfg[3] => csqar1, cfg[4] => csqar2 + */ + u32 cfg[5]; - if (write_data) - pcr |= FMC2_PCR_WEN; - else - pcr &= ~FMC2_PCR_WEN; - writel_relaxed(pcr, nfc->io_base + FMC2_PCR); + regmap_update_bits(nfc->regmap, FMC2_PCR, FMC2_PCR_WEN, + write_data ? FMC2_PCR_WEN : 0); /* * - Set Program Page/Page Read command * - Enable DMA request data * - Set timings */ - csqcfgr1 = FMC2_CSQCFGR1_DMADEN | FMC2_CSQCFGR1_CMD1T; + cfg[0] = FMC2_CSQCFGR1_DMADEN | FMC2_CSQCFGR1_CMD1T; if (write_data) - csqcfgr1 |= FIELD_PREP(FMC2_CSQCFGR1_CMD1, NAND_CMD_SEQIN); + cfg[0] |= FIELD_PREP(FMC2_CSQCFGR1_CMD1, NAND_CMD_SEQIN); else - csqcfgr1 |= FIELD_PREP(FMC2_CSQCFGR1_CMD1, NAND_CMD_READ0) | - FMC2_CSQCFGR1_CMD2EN | - FIELD_PREP(FMC2_CSQCFGR1_CMD2, NAND_CMD_READSTART) | - FMC2_CSQCFGR1_CMD2T; + cfg[0] |= FIELD_PREP(FMC2_CSQCFGR1_CMD1, NAND_CMD_READ0) | + FMC2_CSQCFGR1_CMD2EN | + FIELD_PREP(FMC2_CSQCFGR1_CMD2, NAND_CMD_READSTART) | + FMC2_CSQCFGR1_CMD2T; /* * - Set Random Data Input/Random Data Read command @@ -796,30 +769,29 @@ static void stm32_fmc2_nfc_rw_page_init(struct nand_chip *chip, int page, * - Set timings */ if (write_data) - csqcfgr2 = FIELD_PREP(FMC2_CSQCFGR2_RCMD1, NAND_CMD_RNDIN); + cfg[1] = FIELD_PREP(FMC2_CSQCFGR2_RCMD1, NAND_CMD_RNDIN); else - csqcfgr2 = FIELD_PREP(FMC2_CSQCFGR2_RCMD1, NAND_CMD_RNDOUT) | - FMC2_CSQCFGR2_RCMD2EN | - FIELD_PREP(FMC2_CSQCFGR2_RCMD2, - NAND_CMD_RNDOUTSTART) | - FMC2_CSQCFGR2_RCMD1T | - FMC2_CSQCFGR2_RCMD2T; + cfg[1] = FIELD_PREP(FMC2_CSQCFGR2_RCMD1, NAND_CMD_RNDOUT) | + FMC2_CSQCFGR2_RCMD2EN | + FIELD_PREP(FMC2_CSQCFGR2_RCMD2, NAND_CMD_RNDOUTSTART) | + FMC2_CSQCFGR2_RCMD1T | + FMC2_CSQCFGR2_RCMD2T; if (!raw) { - csqcfgr2 |= write_data ? 0 : FMC2_CSQCFGR2_DMASEN; - csqcfgr2 |= FMC2_CSQCFGR2_SQSDTEN; + cfg[1] |= write_data ? 0 : FMC2_CSQCFGR2_DMASEN; + cfg[1] |= FMC2_CSQCFGR2_SQSDTEN; } /* * - Set the number of sectors to be written * - Set timings */ - csqcfgr3 = FIELD_PREP(FMC2_CSQCFGR3_SNBR, chip->ecc.steps - 1); + cfg[2] = FIELD_PREP(FMC2_CSQCFGR3_SNBR, chip->ecc.steps - 1); if (write_data) { - csqcfgr3 |= FMC2_CSQCFGR3_RAC2T; + cfg[2] |= FMC2_CSQCFGR3_RAC2T; if (chip->options & NAND_ROW_ADDR_3) - csqcfgr3 |= FMC2_CSQCFGR3_AC5T; + cfg[2] |= FMC2_CSQCFGR3_AC5T; else - csqcfgr3 |= FMC2_CSQCFGR3_AC4T; + cfg[2] |= FMC2_CSQCFGR3_AC4T; } /* @@ -827,8 +799,8 @@ static void stm32_fmc2_nfc_rw_page_init(struct nand_chip *chip, int page, * Byte 1 and byte 2 => column, we start at 0x0 * Byte 3 and byte 4 => page */ - csqar1 = FIELD_PREP(FMC2_CSQCAR1_ADDC3, page); - csqar1 |= FIELD_PREP(FMC2_CSQCAR1_ADDC4, page >> 8); + cfg[3] = FIELD_PREP(FMC2_CSQCAR1_ADDC3, page); + cfg[3] |= FIELD_PREP(FMC2_CSQCAR1_ADDC4, page >> 8); /* * - Set chip enable number @@ -836,23 +808,19 @@ static void stm32_fmc2_nfc_rw_page_init(struct nand_chip *chip, int page, * - Calculate the number of address cycles to be issued * - Set byte 5 of address cycle if needed */ - csqar2 = FIELD_PREP(FMC2_CSQCAR2_NANDCEN, nfc->cs_sel); + cfg[4] = FIELD_PREP(FMC2_CSQCAR2_NANDCEN, nfc->cs_sel); if (chip->options & NAND_BUSWIDTH_16) - csqar2 |= FIELD_PREP(FMC2_CSQCAR2_SAO, ecc_offset >> 1); + cfg[4] |= FIELD_PREP(FMC2_CSQCAR2_SAO, ecc_offset >> 1); else - csqar2 |= FIELD_PREP(FMC2_CSQCAR2_SAO, ecc_offset); + cfg[4] |= FIELD_PREP(FMC2_CSQCAR2_SAO, ecc_offset); if (chip->options & NAND_ROW_ADDR_3) { - csqcfgr1 |= FIELD_PREP(FMC2_CSQCFGR1_ACYNBR, 5); - csqar2 |= FIELD_PREP(FMC2_CSQCAR2_ADDC5, page >> 16); + cfg[0] |= FIELD_PREP(FMC2_CSQCFGR1_ACYNBR, 5); + cfg[4] |= FIELD_PREP(FMC2_CSQCAR2_ADDC5, page >> 16); } else { - csqcfgr1 |= FIELD_PREP(FMC2_CSQCFGR1_ACYNBR, 4); + cfg[0] |= FIELD_PREP(FMC2_CSQCFGR1_ACYNBR, 4); } - writel_relaxed(csqcfgr1, nfc->io_base + FMC2_CSQCFGR1); - writel_relaxed(csqcfgr2, nfc->io_base + FMC2_CSQCFGR2); - writel_relaxed(csqcfgr3, nfc->io_base + FMC2_CSQCFGR3); - writel_relaxed(csqar1, nfc->io_base + FMC2_CSQAR1); - writel_relaxed(csqar2, nfc->io_base + FMC2_CSQAR2); + regmap_bulk_write(nfc->regmap, FMC2_CSQCFGR1, cfg, 5); } static void stm32_fmc2_nfc_dma_callback(void *arg) @@ -870,7 +838,6 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, struct dma_chan *dma_ch = nfc->dma_rx_ch; enum dma_data_direction dma_data_dir = DMA_FROM_DEVICE; enum dma_transfer_direction dma_transfer_dir = DMA_DEV_TO_MEM; - u32 csqcr = readl_relaxed(nfc->io_base + FMC2_CSQCR); int eccsteps = chip->ecc.steps; int eccsize = chip->ecc.size; unsigned long timeout = msecs_to_jiffies(FMC2_TIMEOUT_MS); @@ -948,8 +915,8 @@ static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, stm32_fmc2_nfc_enable_seq_irq(nfc); /* Start the transfer */ - csqcr |= FMC2_CSQCR_CSQSTART; - writel_relaxed(csqcr, nfc->io_base + FMC2_CSQCR); + regmap_update_bits(nfc->regmap, FMC2_CSQCR, + FMC2_CSQCR_CSQSTART, FMC2_CSQCR_CSQSTART); /* Wait end of sequencer transfer */ if (!wait_for_completion_timeout(&nfc->complete, timeout)) { @@ -1042,11 +1009,13 @@ static int stm32_fmc2_nfc_seq_write_page_raw(struct nand_chip *chip, } /* Get a status indicating which sectors have errors */ -static inline u16 stm32_fmc2_nfc_get_mapping_status(struct stm32_fmc2_nfc *nfc) +static u16 stm32_fmc2_nfc_get_mapping_status(struct stm32_fmc2_nfc *nfc) { - u32 csqemsr = readl_relaxed(nfc->io_base + FMC2_CSQEMSR); + u32 csqemsr; - return csqemsr & FMC2_CSQEMSR_SEM; + regmap_read(nfc->regmap, FMC2_CSQEMSR, &csqemsr); + + return FIELD_GET(FMC2_CSQEMSR_SEM, csqemsr); } static int stm32_fmc2_nfc_seq_correct(struct nand_chip *chip, u8 *dat, @@ -1302,22 +1271,22 @@ static int stm32_fmc2_nfc_waitrdy(struct nand_chip *chip, u32 isr, sr; /* Check if there is no pending requests to the NAND flash */ - if (readl_relaxed_poll_timeout_atomic(nfc->io_base + FMC2_SR, sr, - sr & FMC2_SR_NWRF, 1, - 1000 * FMC2_TIMEOUT_MS)) + if (regmap_read_poll_timeout(nfc->regmap, FMC2_SR, sr, + sr & FMC2_SR_NWRF, 1, + 1000 * FMC2_TIMEOUT_MS)) dev_warn(nfc->dev, "Waitrdy timeout\n"); /* Wait tWB before R/B# signal is low */ - timings = nand_get_sdr_timings(&chip->data_interface); + timings = nand_get_sdr_timings(nand_get_interface_config(chip)); ndelay(PSEC_TO_NSEC(timings->tWB_max)); /* R/B# signal is low, clear high level flag */ - writel_relaxed(FMC2_ICR_CIHLF, nfc->io_base + FMC2_ICR); + regmap_write(nfc->regmap, FMC2_ICR, FMC2_ICR_CIHLF); /* Wait R/B# signal is high */ - return readl_relaxed_poll_timeout_atomic(nfc->io_base + FMC2_ISR, - isr, isr & FMC2_ISR_IHLF, - 5, 1000 * timeout_ms); + return regmap_read_poll_timeout(nfc->regmap, FMC2_ISR, isr, + isr & FMC2_ISR_IHLF, 5, + 1000 * FMC2_TIMEOUT_MS); } static int stm32_fmc2_nfc_exec_op(struct nand_chip *chip, @@ -1375,8 +1344,9 @@ static int stm32_fmc2_nfc_exec_op(struct nand_chip *chip, static void stm32_fmc2_nfc_init(struct stm32_fmc2_nfc *nfc) { - u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); - u32 bcr1 = readl_relaxed(nfc->io_base + FMC2_BCR1); + u32 pcr; + + regmap_read(nfc->regmap, FMC2_PCR, &pcr); /* Set CS used to undefined */ nfc->cs_sel = -1; @@ -1407,12 +1377,13 @@ static void stm32_fmc2_nfc_init(struct stm32_fmc2_nfc *nfc) pcr |= FIELD_PREP(FMC2_PCR_TAR, FMC2_PCR_TAR_DEFAULT); /* Enable FMC2 controller */ - bcr1 |= FMC2_BCR1_FMC2EN; + if (nfc->dev == nfc->cdev) + regmap_update_bits(nfc->regmap, FMC2_BCR1, + FMC2_BCR1_FMC2EN, FMC2_BCR1_FMC2EN); - writel_relaxed(bcr1, nfc->io_base + FMC2_BCR1); - writel_relaxed(pcr, nfc->io_base + FMC2_PCR); - writel_relaxed(FMC2_PMEM_DEFAULT, nfc->io_base + FMC2_PMEM); - writel_relaxed(FMC2_PATT_DEFAULT, nfc->io_base + FMC2_PATT); + regmap_write(nfc->regmap, FMC2_PCR, pcr); + regmap_write(nfc->regmap, FMC2_PMEM, FMC2_PMEM_DEFAULT); + regmap_write(nfc->regmap, FMC2_PATT, FMC2_PATT_DEFAULT); } static void stm32_fmc2_nfc_calc_timings(struct nand_chip *chip, @@ -1546,7 +1517,7 @@ static void stm32_fmc2_nfc_calc_timings(struct nand_chip *chip, } static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) + const struct nand_interface_config *conf) { const struct nand_sdr_timings *sdrt; @@ -1570,7 +1541,7 @@ static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc) nfc->dma_tx_ch = dma_request_chan(nfc->dev, "tx"); if (IS_ERR(nfc->dma_tx_ch)) { ret = PTR_ERR(nfc->dma_tx_ch); - if (ret != -ENODEV) + if (ret != -ENODEV && ret != -EPROBE_DEFER) dev_err(nfc->dev, "failed to request tx DMA channel: %d\n", ret); nfc->dma_tx_ch = NULL; @@ -1580,7 +1551,7 @@ static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc) nfc->dma_rx_ch = dma_request_chan(nfc->dev, "rx"); if (IS_ERR(nfc->dma_rx_ch)) { ret = PTR_ERR(nfc->dma_rx_ch); - if (ret != -ENODEV) + if (ret != -ENODEV && ret != -EPROBE_DEFER) dev_err(nfc->dev, "failed to request rx DMA channel: %d\n", ret); nfc->dma_rx_ch = NULL; @@ -1590,7 +1561,7 @@ static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc) nfc->dma_ecc_ch = dma_request_chan(nfc->dev, "ecc"); if (IS_ERR(nfc->dma_ecc_ch)) { ret = PTR_ERR(nfc->dma_ecc_ch); - if (ret != -ENODEV) + if (ret != -ENODEV && ret != -EPROBE_DEFER) dev_err(nfc->dev, "failed to request ecc DMA channel: %d\n", ret); nfc->dma_ecc_ch = NULL; @@ -1764,7 +1735,7 @@ static int stm32_fmc2_nfc_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops stm32_fmc2_nfc_controller_ops = { .attach_chip = stm32_fmc2_nfc_attach_chip, .exec_op = stm32_fmc2_nfc_exec_op, - .setup_data_interface = stm32_fmc2_nfc_setup_interface, + .setup_interface = stm32_fmc2_nfc_setup_interface, }; static int stm32_fmc2_nfc_parse_child(struct stm32_fmc2_nfc *nfc, @@ -1838,6 +1809,33 @@ static int stm32_fmc2_nfc_parse_dt(struct stm32_fmc2_nfc *nfc) return ret; } +static int stm32_fmc2_nfc_set_cdev(struct stm32_fmc2_nfc *nfc) +{ + struct device *dev = nfc->dev; + bool ebi_found = false; + + if (dev->parent && of_device_is_compatible(dev->parent->of_node, + "st,stm32mp1-fmc2-ebi")) + ebi_found = true; + + if (of_device_is_compatible(dev->of_node, "st,stm32mp1-fmc2-nfc")) { + if (ebi_found) { + nfc->cdev = dev->parent; + + return 0; + } + + return -EINVAL; + } + + if (ebi_found) + return -EINVAL; + + nfc->cdev = dev; + + return 0; +} + static int stm32_fmc2_nfc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1847,7 +1845,9 @@ static int stm32_fmc2_nfc_probe(struct platform_device *pdev) struct resource *res; struct mtd_info *mtd; struct nand_chip *chip; + struct resource cres; int chip_cs, mem_region, ret, irq; + int start_region = 0; nfc = devm_kzalloc(dev, sizeof(*nfc), GFP_KERNEL); if (!nfc) @@ -1857,18 +1857,28 @@ static int stm32_fmc2_nfc_probe(struct platform_device *pdev) nand_controller_init(&nfc->base); nfc->base.ops = &stm32_fmc2_nfc_controller_ops; + ret = stm32_fmc2_nfc_set_cdev(nfc); + if (ret) + return ret; + ret = stm32_fmc2_nfc_parse_dt(nfc); if (ret) return ret; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - nfc->io_base = devm_ioremap_resource(dev, res); - if (IS_ERR(nfc->io_base)) - return PTR_ERR(nfc->io_base); + ret = of_address_to_resource(nfc->cdev->of_node, 0, &cres); + if (ret) + return ret; + + nfc->io_phys_addr = cres.start; + + nfc->regmap = device_node_to_regmap(nfc->cdev->of_node); + if (IS_ERR(nfc->regmap)) + return PTR_ERR(nfc->regmap); - nfc->io_phys_addr = res->start; + if (nfc->dev == nfc->cdev) + start_region = 1; - for (chip_cs = 0, mem_region = 1; chip_cs < FMC2_MAX_CE; + for (chip_cs = 0, mem_region = start_region; chip_cs < FMC2_MAX_CE; chip_cs++, mem_region += 3) { if (!(nfc->cs_assigned & BIT(chip_cs))) continue; @@ -1906,7 +1916,7 @@ static int stm32_fmc2_nfc_probe(struct platform_device *pdev) init_completion(&nfc->complete); - nfc->clk = devm_clk_get(dev, NULL); + nfc->clk = devm_clk_get(nfc->cdev, NULL); if (IS_ERR(nfc->clk)) return PTR_ERR(nfc->clk); @@ -2047,6 +2057,7 @@ static SIMPLE_DEV_PM_OPS(stm32_fmc2_nfc_pm_ops, stm32_fmc2_nfc_suspend, static const struct of_device_id stm32_fmc2_nfc_match[] = { {.compatible = "st,stm32mp15-fmc2"}, + {.compatible = "st,stm32mp1-fmc2-nfc"}, {} }; MODULE_DEVICE_TABLE(of, stm32_fmc2_nfc_match); diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c index ffbc1651fadc..9c50c2b965e1 100644 --- a/drivers/mtd/nand/raw/sunxi_nand.c +++ b/drivers/mtd/nand/raw/sunxi_nand.c @@ -1376,8 +1376,8 @@ static int _sunxi_nand_lookup_timing(const s32 *lut, int lut_size, u32 duration, #define sunxi_nand_lookup_timing(l, p, c) \ _sunxi_nand_lookup_timing(l, ARRAY_SIZE(l), p, c) -static int sunxi_nfc_setup_data_interface(struct nand_chip *nand, int csline, - const struct nand_data_interface *conf) +static int sunxi_nfc_setup_interface(struct nand_chip *nand, int csline, + const struct nand_interface_config *conf) { struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); @@ -1920,7 +1920,7 @@ static int sunxi_nfc_exec_op(struct nand_chip *nand, static const struct nand_controller_ops sunxi_nand_controller_ops = { .attach_chip = sunxi_nand_attach_chip, - .setup_data_interface = sunxi_nfc_setup_data_interface, + .setup_interface = sunxi_nfc_setup_interface, .exec_op = sunxi_nfc_exec_op, }; diff --git a/drivers/mtd/nand/raw/tango_nand.c b/drivers/mtd/nand/raw/tango_nand.c index 246871e01027..bdb965ae7a4a 100644 --- a/drivers/mtd/nand/raw/tango_nand.c +++ b/drivers/mtd/nand/raw/tango_nand.c @@ -113,59 +113,80 @@ struct tango_chip { #define TIMING(t0, t1, t2, t3) ((t0) << 24 | (t1) << 16 | (t2) << 8 | (t3)) -static void tango_cmd_ctrl(struct nand_chip *chip, int dat, unsigned int ctrl) +static void tango_select_target(struct nand_chip *chip, unsigned int cs) { + struct tango_nfc *nfc = to_tango_nfc(chip->controller); struct tango_chip *tchip = to_tango_chip(chip); - if (ctrl & NAND_CLE) - writeb_relaxed(dat, tchip->base + PBUS_CMD); - - if (ctrl & NAND_ALE) - writeb_relaxed(dat, tchip->base + PBUS_ADDR); + writel_relaxed(tchip->timing1, nfc->reg_base + NFC_TIMING1); + writel_relaxed(tchip->timing2, nfc->reg_base + NFC_TIMING2); + writel_relaxed(tchip->xfer_cfg, nfc->reg_base + NFC_XFER_CFG); + writel_relaxed(tchip->pkt_0_cfg, nfc->reg_base + NFC_PKT_0_CFG); + writel_relaxed(tchip->pkt_n_cfg, nfc->reg_base + NFC_PKT_N_CFG); + writel_relaxed(tchip->bb_cfg, nfc->reg_base + NFC_BB_CFG); } -static int tango_dev_ready(struct nand_chip *chip) +static int tango_waitrdy(struct nand_chip *chip, unsigned int timeout_ms) { struct tango_nfc *nfc = to_tango_nfc(chip->controller); + u32 status; - return readl_relaxed(nfc->pbus_base + PBUS_CS_CTRL) & PBUS_IORDY; + return readl_relaxed_poll_timeout(nfc->pbus_base + PBUS_CS_CTRL, + status, status & PBUS_IORDY, 20, + timeout_ms); } -static u8 tango_read_byte(struct nand_chip *chip) +static int tango_exec_instr(struct nand_chip *chip, + const struct nand_op_instr *instr) { struct tango_chip *tchip = to_tango_chip(chip); + unsigned int i; - return readb_relaxed(tchip->base + PBUS_DATA); -} - -static void tango_read_buf(struct nand_chip *chip, u8 *buf, int len) -{ - struct tango_chip *tchip = to_tango_chip(chip); + switch (instr->type) { + case NAND_OP_CMD_INSTR: + writeb_relaxed(instr->ctx.cmd.opcode, tchip->base + PBUS_CMD); + return 0; + case NAND_OP_ADDR_INSTR: + for (i = 0; i < instr->ctx.addr.naddrs; i++) + writeb_relaxed(instr->ctx.addr.addrs[i], + tchip->base + PBUS_ADDR); + return 0; + case NAND_OP_DATA_IN_INSTR: + ioread8_rep(tchip->base + PBUS_DATA, instr->ctx.data.buf.in, + instr->ctx.data.len); + return 0; + case NAND_OP_DATA_OUT_INSTR: + iowrite8_rep(tchip->base + PBUS_DATA, instr->ctx.data.buf.out, + instr->ctx.data.len); + return 0; + case NAND_OP_WAITRDY_INSTR: + return tango_waitrdy(chip, + instr->ctx.waitrdy.timeout_ms); + default: + break; + } - ioread8_rep(tchip->base + PBUS_DATA, buf, len); + return -EINVAL; } -static void tango_write_buf(struct nand_chip *chip, const u8 *buf, int len) +static int tango_exec_op(struct nand_chip *chip, + const struct nand_operation *op, + bool check_only) { - struct tango_chip *tchip = to_tango_chip(chip); - - iowrite8_rep(tchip->base + PBUS_DATA, buf, len); -} + unsigned int i; + int ret = 0; -static void tango_select_chip(struct nand_chip *chip, int idx) -{ - struct tango_nfc *nfc = to_tango_nfc(chip->controller); - struct tango_chip *tchip = to_tango_chip(chip); + if (check_only) + return 0; - if (idx < 0) - return; /* No "chip unselect" function */ + tango_select_target(chip, op->cs); + for (i = 0; i < op->ninstrs; i++) { + ret = tango_exec_instr(chip, &op->instrs[i]); + if (ret) + break; + } - writel_relaxed(tchip->timing1, nfc->reg_base + NFC_TIMING1); - writel_relaxed(tchip->timing2, nfc->reg_base + NFC_TIMING2); - writel_relaxed(tchip->xfer_cfg, nfc->reg_base + NFC_XFER_CFG); - writel_relaxed(tchip->pkt_0_cfg, nfc->reg_base + NFC_PKT_0_CFG); - writel_relaxed(tchip->pkt_n_cfg, nfc->reg_base + NFC_PKT_N_CFG); - writel_relaxed(tchip->bb_cfg, nfc->reg_base + NFC_BB_CFG); + return ret; } /* @@ -279,6 +300,7 @@ static int tango_read_page(struct nand_chip *chip, u8 *buf, struct tango_nfc *nfc = to_tango_nfc(chip->controller); int err, res, len = mtd->writesize; + tango_select_target(chip, chip->cur_cs); if (oob_required) chip->ecc.read_oob(chip, page); @@ -300,22 +322,30 @@ static int tango_write_page(struct nand_chip *chip, const u8 *buf, { struct mtd_info *mtd = nand_to_mtd(chip); struct tango_nfc *nfc = to_tango_nfc(chip->controller); - int err, status, len = mtd->writesize; + const struct nand_sdr_timings *timings; + int err, len = mtd->writesize; + u8 status; /* Calling tango_write_oob() would send PAGEPROG twice */ if (oob_required) return -ENOTSUPP; + tango_select_target(chip, chip->cur_cs); writel_relaxed(0xffffffff, nfc->mem_base + METADATA); err = do_dma(nfc, DMA_TO_DEVICE, NFC_WRITE, buf, len, page); if (err) return err; - status = chip->legacy.waitfunc(chip); - if (status & NAND_STATUS_FAIL) - return -EIO; + timings = nand_get_sdr_timings(nand_get_interface_config(chip)); + err = tango_waitrdy(chip, PSEC_TO_MSEC(timings->tR_max)); + if (err) + return err; - return 0; + err = nand_status_op(chip, &status); + if (err) + return err; + + return (status & NAND_STATUS_FAIL) ? -EIO : 0; } static void aux_read(struct nand_chip *chip, u8 **buf, int len, int *pos) @@ -326,7 +356,9 @@ static void aux_read(struct nand_chip *chip, u8 **buf, int len, int *pos) /* skip over "len" bytes */ nand_change_read_column_op(chip, *pos, NULL, 0, false); } else { - tango_read_buf(chip, *buf, len); + struct tango_chip *tchip = to_tango_chip(chip); + + ioread8_rep(tchip->base + PBUS_DATA, *buf, len); *buf += len; } } @@ -339,7 +371,9 @@ static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos) /* skip over "len" bytes */ nand_change_write_column_op(chip, *pos, NULL, 0, false); } else { - tango_write_buf(chip, *buf, len); + struct tango_chip *tchip = to_tango_chip(chip); + + iowrite8_rep(tchip->base + PBUS_DATA, *buf, len); *buf += len; } } @@ -420,6 +454,7 @@ static void raw_write(struct nand_chip *chip, const u8 *buf, const u8 *oob) static int tango_read_page_raw(struct nand_chip *chip, u8 *buf, int oob_required, int page) { + tango_select_target(chip, chip->cur_cs); nand_read_page_op(chip, page, 0, NULL, 0); raw_read(chip, buf, chip->oob_poi); return 0; @@ -428,6 +463,7 @@ static int tango_read_page_raw(struct nand_chip *chip, u8 *buf, static int tango_write_page_raw(struct nand_chip *chip, const u8 *buf, int oob_required, int page) { + tango_select_target(chip, chip->cur_cs); nand_prog_page_begin_op(chip, page, 0, NULL, 0); raw_write(chip, buf, chip->oob_poi); return nand_prog_page_end_op(chip); @@ -435,6 +471,7 @@ static int tango_write_page_raw(struct nand_chip *chip, const u8 *buf, static int tango_read_oob(struct nand_chip *chip, int page) { + tango_select_target(chip, chip->cur_cs); nand_read_page_op(chip, page, 0, NULL, 0); raw_read(chip, NULL, chip->oob_poi); return 0; @@ -442,6 +479,7 @@ static int tango_read_oob(struct nand_chip *chip, int page) static int tango_write_oob(struct nand_chip *chip, int page) { + tango_select_target(chip, chip->cur_cs); nand_prog_page_begin_op(chip, page, 0, NULL, 0); raw_write(chip, NULL, chip->oob_poi); return nand_prog_page_end_op(chip); @@ -477,7 +515,7 @@ static u32 to_ticks(int kHz, int ps) } static int tango_set_timings(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf) + const struct nand_interface_config *conf) { const struct nand_sdr_timings *sdr = nand_get_sdr_timings(conf); struct tango_nfc *nfc = to_tango_nfc(chip->controller); @@ -527,7 +565,8 @@ static int tango_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops tango_controller_ops = { .attach_chip = tango_attach_chip, - .setup_data_interface = tango_set_timings, + .setup_interface = tango_set_timings, + .exec_op = tango_exec_op, }; static int chip_init(struct device *dev, struct device_node *np) @@ -562,12 +601,6 @@ static int chip_init(struct device *dev, struct device_node *np) ecc = &chip->ecc; mtd = nand_to_mtd(chip); - chip->legacy.read_byte = tango_read_byte; - chip->legacy.write_buf = tango_write_buf; - chip->legacy.read_buf = tango_read_buf; - chip->legacy.select_chip = tango_select_chip; - chip->legacy.cmd_ctrl = tango_cmd_ctrl; - chip->legacy.dev_ready = tango_dev_ready; chip->options = NAND_USES_DMA | NAND_NO_SUBPAGE_WRITE | NAND_WAIT_TCCS; diff --git a/drivers/mtd/nand/raw/tegra_nand.c b/drivers/mtd/nand/raw/tegra_nand.c index f9d046b2cd3b..6b6212ffa01c 100644 --- a/drivers/mtd/nand/raw/tegra_nand.c +++ b/drivers/mtd/nand/raw/tegra_nand.c @@ -813,8 +813,8 @@ static void tegra_nand_setup_timing(struct tegra_nand_controller *ctrl, writel_relaxed(reg, ctrl->regs + TIMING_2); } -static int tegra_nand_setup_data_interface(struct nand_chip *chip, int csline, - const struct nand_data_interface *conf) +static int tegra_nand_setup_interface(struct nand_chip *chip, int csline, + const struct nand_interface_config *conf) { struct tegra_nand_controller *ctrl = to_tegra_ctrl(chip->controller); const struct nand_sdr_timings *timings; @@ -1053,7 +1053,7 @@ static int tegra_nand_attach_chip(struct nand_chip *chip) static const struct nand_controller_ops tegra_nand_controller_ops = { .attach_chip = &tegra_nand_attach_chip, .exec_op = tegra_nand_exec_op, - .setup_data_interface = tegra_nand_setup_data_interface, + .setup_interface = tegra_nand_setup_interface, }; static int tegra_nand_chips_init(struct device *dev, |