| Dinesh Maniyam | 304fc3f | 2025-02-27 00:18:29 +0800 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Copyright (C) 2024 Intel Corporation <www.intel.com> |
| 4 | */ |
| 5 | |
| 6 | #include <cadence-nand.h> |
| 7 | #include <dm.h> |
| 8 | #include <hang.h> |
| 9 | #include <nand.h> |
| 10 | #include <system-constants.h> |
| 11 | |
| 12 | /* Unselect after operation */ |
| 13 | void nand_deselect(void) |
| 14 | { |
| 15 | struct mtd_info *mtd; |
| 16 | struct nand_chip *chip; |
| 17 | |
| 18 | mtd = get_nand_dev_by_index(nand_curr_device); |
| 19 | if (!mtd) |
| 20 | hang(); |
| 21 | chip = mtd_to_nand(mtd); |
| 22 | |
| 23 | if (chip->select_chip) |
| 24 | chip->select_chip(mtd, -1); |
| 25 | } |
| 26 | |
| 27 | static int nand_is_bad_block(int block) |
| 28 | { |
| 29 | struct mtd_info *mtd; |
| 30 | struct nand_chip *chip; |
| 31 | loff_t ofs = block * CONFIG_SYS_NAND_BLOCK_SIZE; |
| 32 | |
| 33 | mtd = get_nand_dev_by_index(nand_curr_device); |
| 34 | if (!mtd) |
| 35 | hang(); |
| 36 | chip = mtd_to_nand(mtd); |
| 37 | |
| 38 | return chip->block_bad(mtd, ofs); |
| 39 | } |
| 40 | |
| 41 | static int nand_read_page(int block, int page, uchar *dst) |
| 42 | { |
| 43 | struct mtd_info *mtd; |
| 44 | int page_addr = block * SYS_NAND_BLOCK_PAGES + page; |
| 45 | loff_t ofs = page_addr * CONFIG_SYS_NAND_PAGE_SIZE; |
| 46 | int ret; |
| 47 | size_t len = CONFIG_SYS_NAND_PAGE_SIZE; |
| 48 | |
| 49 | mtd = get_nand_dev_by_index(nand_curr_device); |
| 50 | if (!mtd) |
| 51 | hang(); |
| 52 | |
| 53 | ret = nand_read(mtd, ofs, &len, dst); |
| 54 | if (ret) |
| 55 | printf("nand_read failed %d\n", ret); |
| 56 | |
| 57 | return ret; |
| 58 | } |
| 59 | #include "nand_spl_loaders.c" |