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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2017 Socionext Inc.
- * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- */
- #include <clk.h>
- #include <dm.h>
- #include <linux/io.h>
- #include <linux/ioport.h>
- #include <linux/printk.h>
- #include "denali.h"
- struct denali_dt_data {
- unsigned int revision;
- unsigned int caps;
- const struct nand_ecc_caps *ecc_caps;
- };
- NAND_ECC_CAPS_SINGLE(denali_socfpga_ecc_caps, denali_calc_ecc_bytes,
- 512, 8, 15);
- static const struct denali_dt_data denali_socfpga_data = {
- .caps = DENALI_CAP_HW_ECC_FIXUP,
- .ecc_caps = &denali_socfpga_ecc_caps,
- };
- NAND_ECC_CAPS_SINGLE(denali_uniphier_v5a_ecc_caps, denali_calc_ecc_bytes,
- 1024, 8, 16, 24);
- static const struct denali_dt_data denali_uniphier_v5a_data = {
- .caps = DENALI_CAP_HW_ECC_FIXUP |
- DENALI_CAP_DMA_64BIT,
- .ecc_caps = &denali_uniphier_v5a_ecc_caps,
- };
- NAND_ECC_CAPS_SINGLE(denali_uniphier_v5b_ecc_caps, denali_calc_ecc_bytes,
- 1024, 8, 16);
- static const struct denali_dt_data denali_uniphier_v5b_data = {
- .revision = 0x0501,
- .caps = DENALI_CAP_HW_ECC_FIXUP |
- DENALI_CAP_DMA_64BIT,
- .ecc_caps = &denali_uniphier_v5b_ecc_caps,
- };
- static const struct udevice_id denali_nand_dt_ids[] = {
- {
- .compatible = "altr,socfpga-denali-nand",
- .data = (unsigned long)&denali_socfpga_data,
- },
- {
- .compatible = "socionext,uniphier-denali-nand-v5a",
- .data = (unsigned long)&denali_uniphier_v5a_data,
- },
- {
- .compatible = "socionext,uniphier-denali-nand-v5b",
- .data = (unsigned long)&denali_uniphier_v5b_data,
- },
- { /* sentinel */ }
- };
- static int denali_dt_probe(struct udevice *dev)
- {
- struct denali_nand_info *denali = dev_get_priv(dev);
- const struct denali_dt_data *data;
- struct clk clk;
- struct resource res;
- int ret;
- data = (void *)dev_get_driver_data(dev);
- if (data) {
- denali->revision = data->revision;
- denali->caps = data->caps;
- denali->ecc_caps = data->ecc_caps;
- }
- denali->dev = dev;
- ret = dev_read_resource_byname(dev, "denali_reg", &res);
- if (ret)
- return ret;
- denali->reg = devm_ioremap(dev, res.start, resource_size(&res));
- ret = dev_read_resource_byname(dev, "nand_data", &res);
- if (ret)
- return ret;
- denali->host = devm_ioremap(dev, res.start, resource_size(&res));
- ret = clk_get_by_index(dev, 0, &clk);
- if (ret)
- return ret;
- ret = clk_enable(&clk);
- if (ret)
- return ret;
- denali->clk_x_rate = clk_get_rate(&clk);
- return denali_init(denali);
- }
- U_BOOT_DRIVER(denali_nand_dt) = {
- .name = "denali-nand-dt",
- .id = UCLASS_MISC,
- .of_match = denali_nand_dt_ids,
- .probe = denali_dt_probe,
- .priv_auto_alloc_size = sizeof(struct denali_nand_info),
- };
- void board_nand_init(void)
- {
- struct udevice *dev;
- int ret;
- ret = uclass_get_device_by_driver(UCLASS_MISC,
- DM_GET_DRIVER(denali_nand_dt),
- &dev);
- if (ret && ret != -ENODEV)
- pr_err("Failed to initialize Denali NAND controller. (error %d)\n",
- ret);
- }
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