diff options
Diffstat (limited to 'drivers/mtd/nand/raw/mxs_nand_dt.c')
| -rw-r--r-- | drivers/mtd/nand/raw/mxs_nand_dt.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/mxs_nand_dt.c b/drivers/mtd/nand/raw/mxs_nand_dt.c index 8ad7d618c6..43dbe9e66e 100644 --- a/drivers/mtd/nand/raw/mxs_nand_dt.c +++ b/drivers/mtd/nand/raw/mxs_nand_dt.c @@ -2,6 +2,8 @@ * NXP GPMI NAND flash driver (DT initialization) * * Copyright (C) 2018 Toradex + * Copyright 2019 NXP + * * Authors: * Stefan Agner <stefan.agner@toradex.com> * @@ -14,6 +16,7 @@ #include <linux/io.h> #include <linux/ioport.h> #include <linux/printk.h> +#include <clk.h> #include <mxs_nand.h> @@ -25,19 +28,39 @@ static const struct mxs_nand_dt_data mxs_nand_imx6q_data = { .max_ecc_strength_supported = 40, }; +static const struct mxs_nand_dt_data mxs_nand_imx6sx_data = { + .max_ecc_strength_supported = 62, +}; + static const struct mxs_nand_dt_data mxs_nand_imx7d_data = { .max_ecc_strength_supported = 62, }; +static const struct mxs_nand_dt_data mxs_nand_imx8qxp_data = { + .max_ecc_strength_supported = 62, +}; + static const struct udevice_id mxs_nand_dt_ids[] = { { .compatible = "fsl,imx6q-gpmi-nand", .data = (unsigned long)&mxs_nand_imx6q_data, }, { + .compatible = "fsl,imx6qp-gpmi-nand", + .data = (unsigned long)&mxs_nand_imx6q_data, + }, + { + .compatible = "fsl,imx6sx-gpmi-nand", + .data = (unsigned long)&mxs_nand_imx6sx_data, + }, + { .compatible = "fsl,imx7d-gpmi-nand", .data = (unsigned long)&mxs_nand_imx7d_data, }, + { + .compatible = "fsl,imx8qxp-gpmi-nand", + .data = (unsigned long)&mxs_nand_imx8qxp_data, + }, { /* sentinel */ } }; @@ -69,6 +92,74 @@ static int mxs_nand_dt_probe(struct udevice *dev) info->use_minimum_ecc = dev_read_bool(dev, "fsl,use-minimum-ecc"); + info->legacy_bch_geometry = dev_read_bool(dev, "fsl,legacy-bch-geometry"); + + if (IS_ENABLED(CONFIG_CLK) && IS_ENABLED(CONFIG_IMX8)) { + /* Assigned clock already set clock */ + struct clk gpmi_clk; + + ret = clk_get_by_name(dev, "gpmi_io", &gpmi_clk); + if (ret < 0) { + debug("Can't get gpmi io clk: %d\n", ret); + return ret; + } + + ret = clk_enable(&gpmi_clk); + if (ret < 0) { + debug("Can't enable gpmi io clk: %d\n", ret); + return ret; + } + + ret = clk_get_by_name(dev, "gpmi_apb", &gpmi_clk); + if (ret < 0) { + debug("Can't get gpmi_apb clk: %d\n", ret); + return ret; + } + + ret = clk_enable(&gpmi_clk); + if (ret < 0) { + debug("Can't enable gpmi_apb clk: %d\n", ret); + return ret; + } + + ret = clk_get_by_name(dev, "gpmi_bch", &gpmi_clk); + if (ret < 0) { + debug("Can't get gpmi_bch clk: %d\n", ret); + return ret; + } + + ret = clk_enable(&gpmi_clk); + if (ret < 0) { + debug("Can't enable gpmi_bch clk: %d\n", ret); + return ret; + } + + ret = clk_get_by_name(dev, "gpmi_apb_bch", &gpmi_clk); + if (ret < 0) { + debug("Can't get gpmi_apb_bch clk: %d\n", ret); + return ret; + } + + ret = clk_enable(&gpmi_clk); + if (ret < 0) { + debug("Can't enable gpmi_apb_bch clk: %d\n", ret); + return ret; + } + + /* this clock is used for apbh_dma, since the apbh dma does not support DM, + * we optionally enable it here + */ + ret = clk_get_by_name(dev, "gpmi_apbh_dma", &gpmi_clk); + if (ret < 0) { + debug("Can't get gpmi_apbh_dma clk: %d\n", ret); + } else { + ret = clk_enable(&gpmi_clk); + if (ret < 0) { + debug("Can't enable gpmi_apbh_dma clk: %d\n", ret); + } + } + } + return mxs_nand_init_ctrl(info); } |