diff options
Diffstat (limited to 'drivers/mtd/nand/gpmi-nand')
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 6 | ||||
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 75 | ||||
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 13 |
3 files changed, 53 insertions, 41 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c index 141bd70a49c2..97787246af41 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -26,7 +26,7 @@ #include "gpmi-regs.h" #include "bch-regs.h" -static struct timing_threshod timing_default_threshold = { +static struct timing_threshold timing_default_threshold = { .max_data_setup_cycles = (BM_GPMI_TIMING0_DATA_SETUP >> BP_GPMI_TIMING0_DATA_SETUP), .internal_data_setup_in_ns = 0, @@ -329,7 +329,7 @@ static unsigned int ns_to_cycles(unsigned int time, static int gpmi_nfc_compute_hardware_timing(struct gpmi_nand_data *this, struct gpmi_nfc_hardware_timing *hw) { - struct timing_threshod *nfc = &timing_default_threshold; + struct timing_threshold *nfc = &timing_default_threshold; struct resources *r = &this->resources; struct nand_chip *nand = &this->nand; struct nand_timing target = this->timing; @@ -932,7 +932,7 @@ static int enable_edo_mode(struct gpmi_nand_data *this, int mode) nand->select_chip(mtd, 0); - /* [1] send SET FEATURE commond to NAND */ + /* [1] send SET FEATURE command to NAND */ feature[0] = mode; ret = nand->onfi_set_features(mtd, nand, ONFI_FEATURE_ADDR_TIMING_MODE, feature); diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index d52139635b67..50f8d4a1b983 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -82,6 +82,10 @@ static int gpmi_ooblayout_free(struct mtd_info *mtd, int section, return 0; } +static const char * const gpmi_clks_for_mx2x[] = { + "gpmi_io", +}; + static const struct mtd_ooblayout_ops gpmi_ooblayout_ops = { .ecc = gpmi_ooblayout_ecc, .free = gpmi_ooblayout_free, @@ -91,24 +95,48 @@ static const struct gpmi_devdata gpmi_devdata_imx23 = { .type = IS_MX23, .bch_max_ecc_strength = 20, .max_chain_delay = 16, + .clks = gpmi_clks_for_mx2x, + .clks_count = ARRAY_SIZE(gpmi_clks_for_mx2x), }; static const struct gpmi_devdata gpmi_devdata_imx28 = { .type = IS_MX28, .bch_max_ecc_strength = 20, .max_chain_delay = 16, + .clks = gpmi_clks_for_mx2x, + .clks_count = ARRAY_SIZE(gpmi_clks_for_mx2x), +}; + +static const char * const gpmi_clks_for_mx6[] = { + "gpmi_io", "gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch", }; static const struct gpmi_devdata gpmi_devdata_imx6q = { .type = IS_MX6Q, .bch_max_ecc_strength = 40, .max_chain_delay = 12, + .clks = gpmi_clks_for_mx6, + .clks_count = ARRAY_SIZE(gpmi_clks_for_mx6), }; static const struct gpmi_devdata gpmi_devdata_imx6sx = { .type = IS_MX6SX, .bch_max_ecc_strength = 62, .max_chain_delay = 12, + .clks = gpmi_clks_for_mx6, + .clks_count = ARRAY_SIZE(gpmi_clks_for_mx6), +}; + +static const char * const gpmi_clks_for_mx7d[] = { + "gpmi_io", "gpmi_bch_apb", +}; + +static const struct gpmi_devdata gpmi_devdata_imx7d = { + .type = IS_MX7D, + .bch_max_ecc_strength = 62, + .max_chain_delay = 12, + .clks = gpmi_clks_for_mx7d, + .clks_count = ARRAY_SIZE(gpmi_clks_for_mx7d), }; static irqreturn_t bch_irq(int irq, void *cookie) @@ -599,35 +627,14 @@ acquire_err: return -EINVAL; } -static char *extra_clks_for_mx6q[GPMI_CLK_MAX] = { - "gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch", -}; - static int gpmi_get_clks(struct gpmi_nand_data *this) { struct resources *r = &this->resources; - char **extra_clks = NULL; struct clk *clk; int err, i; - /* The main clock is stored in the first. */ - r->clock[0] = devm_clk_get(this->dev, "gpmi_io"); - if (IS_ERR(r->clock[0])) { - err = PTR_ERR(r->clock[0]); - goto err_clock; - } - - /* Get extra clocks */ - if (GPMI_IS_MX6(this)) - extra_clks = extra_clks_for_mx6q; - if (!extra_clks) - return 0; - - for (i = 1; i < GPMI_CLK_MAX; i++) { - if (extra_clks[i - 1] == NULL) - break; - - clk = devm_clk_get(this->dev, extra_clks[i - 1]); + for (i = 0; i < this->devdata->clks_count; i++) { + clk = devm_clk_get(this->dev, this->devdata->clks[i]); if (IS_ERR(clk)) { err = PTR_ERR(clk); goto err_clock; @@ -1929,12 +1936,6 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this) return gpmi_alloc_dma_buffer(this); } -static void gpmi_nand_exit(struct gpmi_nand_data *this) -{ - nand_release(nand_to_mtd(&this->nand)); - gpmi_free_dma_buffer(this); -} - static int gpmi_init_last(struct gpmi_nand_data *this) { struct nand_chip *chip = &this->nand; @@ -2048,18 +2049,20 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) ret = nand_boot_init(this); if (ret) - goto err_out; + goto err_nand_cleanup; ret = chip->scan_bbt(mtd); if (ret) - goto err_out; + goto err_nand_cleanup; ret = mtd_device_register(mtd, NULL, 0); if (ret) - goto err_out; + goto err_nand_cleanup; return 0; +err_nand_cleanup: + nand_cleanup(chip); err_out: - gpmi_nand_exit(this); + gpmi_free_dma_buffer(this); return ret; } @@ -2076,6 +2079,9 @@ static const struct of_device_id gpmi_nand_id_table[] = { }, { .compatible = "fsl,imx6sx-gpmi-nand", .data = &gpmi_devdata_imx6sx, + }, { + .compatible = "fsl,imx7d-gpmi-nand", + .data = &gpmi_devdata_imx7d, }, {} }; MODULE_DEVICE_TABLE(of, gpmi_nand_id_table); @@ -2129,7 +2135,8 @@ static int gpmi_nand_remove(struct platform_device *pdev) { struct gpmi_nand_data *this = platform_get_drvdata(pdev); - gpmi_nand_exit(this); + nand_release(nand_to_mtd(&this->nand)); + gpmi_free_dma_buffer(this); release_resources(this); return 0; } diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h index 4e49a1f5fa27..9df0ad64e7e0 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h @@ -123,13 +123,16 @@ enum gpmi_type { IS_MX23, IS_MX28, IS_MX6Q, - IS_MX6SX + IS_MX6SX, + IS_MX7D, }; struct gpmi_devdata { enum gpmi_type type; int bch_max_ecc_strength; int max_chain_delay; /* See the async EDO mode */ + const char * const *clks; + const int clks_count; }; struct gpmi_nand_data { @@ -231,7 +234,7 @@ struct gpmi_nfc_hardware_timing { }; /** - * struct timing_threshod - Timing threshold + * struct timing_threshold - Timing threshold * @max_data_setup_cycles: The maximum number of data setup cycles that * can be expressed in the hardware. * @internal_data_setup_in_ns: The time, in ns, that the NFC hardware requires @@ -253,7 +256,7 @@ struct gpmi_nfc_hardware_timing { * progress, this is the clock frequency during * the most recent I/O transaction. */ -struct timing_threshod { +struct timing_threshold { const unsigned int max_chip_count; const unsigned int max_data_setup_cycles; const unsigned int internal_data_setup_in_ns; @@ -305,6 +308,8 @@ void gpmi_copy_bits(u8 *dst, size_t dst_bit_off, #define GPMI_IS_MX28(x) ((x)->devdata->type == IS_MX28) #define GPMI_IS_MX6Q(x) ((x)->devdata->type == IS_MX6Q) #define GPMI_IS_MX6SX(x) ((x)->devdata->type == IS_MX6SX) +#define GPMI_IS_MX7D(x) ((x)->devdata->type == IS_MX7D) -#define GPMI_IS_MX6(x) (GPMI_IS_MX6Q(x) || GPMI_IS_MX6SX(x)) +#define GPMI_IS_MX6(x) (GPMI_IS_MX6Q(x) || GPMI_IS_MX6SX(x) || \ + GPMI_IS_MX7D(x)) #endif |