2 * Copyright (C) 2017 Socionext Inc.
3 * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
5 * SPDX-License-Identifier: GPL-2.0+
12 #include <linux/ioport.h>
16 struct denali_dt_data {
17 unsigned int revision;
19 const struct nand_ecc_caps *ecc_caps;
22 NAND_ECC_CAPS_SINGLE(denali_socfpga_ecc_caps, denali_calc_ecc_bytes,
24 static const struct denali_dt_data denali_socfpga_data = {
25 .caps = DENALI_CAP_HW_ECC_FIXUP,
26 .ecc_caps = &denali_socfpga_ecc_caps,
29 NAND_ECC_CAPS_SINGLE(denali_uniphier_v5a_ecc_caps, denali_calc_ecc_bytes,
31 static const struct denali_dt_data denali_uniphier_v5a_data = {
32 .caps = DENALI_CAP_HW_ECC_FIXUP |
34 .ecc_caps = &denali_uniphier_v5a_ecc_caps,
37 NAND_ECC_CAPS_SINGLE(denali_uniphier_v5b_ecc_caps, denali_calc_ecc_bytes,
39 static const struct denali_dt_data denali_uniphier_v5b_data = {
41 .caps = DENALI_CAP_HW_ECC_FIXUP |
43 .ecc_caps = &denali_uniphier_v5b_ecc_caps,
46 static const struct udevice_id denali_nand_dt_ids[] = {
48 .compatible = "altr,socfpga-denali-nand",
49 .data = (unsigned long)&denali_socfpga_data,
52 .compatible = "socionext,uniphier-denali-nand-v5a",
53 .data = (unsigned long)&denali_uniphier_v5a_data,
56 .compatible = "socionext,uniphier-denali-nand-v5b",
57 .data = (unsigned long)&denali_uniphier_v5b_data,
62 static int denali_dt_probe(struct udevice *dev)
64 struct denali_nand_info *denali = dev_get_priv(dev);
65 const struct denali_dt_data *data;
70 data = (void *)dev_get_driver_data(dev);
72 denali->revision = data->revision;
73 denali->caps = data->caps;
74 denali->ecc_caps = data->ecc_caps;
79 ret = dev_read_resource_byname(dev, "denali_reg", &res);
83 denali->reg = devm_ioremap(dev, res.start, resource_size(&res));
85 ret = dev_read_resource_byname(dev, "nand_data", &res);
89 denali->host = devm_ioremap(dev, res.start, resource_size(&res));
91 ret = clk_get_by_index(dev, 0, &clk);
95 ret = clk_enable(&clk);
99 denali->clk_x_rate = clk_get_rate(&clk);
101 return denali_init(denali);
104 U_BOOT_DRIVER(denali_nand_dt) = {
105 .name = "denali-nand-dt",
107 .of_match = denali_nand_dt_ids,
108 .probe = denali_dt_probe,
109 .priv_auto_alloc_size = sizeof(struct denali_nand_info),
112 void board_nand_init(void)
117 ret = uclass_get_device_by_driver(UCLASS_MISC,
118 DM_GET_DRIVER(denali_nand_dt),
120 if (ret && ret != -ENODEV)
121 printf("Failed to initialize Denali NAND controller. (error %d)\n",