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Kyungmin Park6cb22392008-01-15 08:59:44 +09001/*
2 * drivers/mtd/onenand/onenand_uboot.c
3 *
4 * Copyright (C) 2005-2008 Samsung Electronics
5 * Kyungmin Park <kyungmin.park@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12/*
13 * OneNAND initialization at U-Boot
14 */
15
16#include <common.h>
Mike Frysinger7b15e2b2012-04-09 13:39:55 +000017#include <linux/compat.h>
Kyungmin Park6cb22392008-01-15 08:59:44 +090018#include <linux/mtd/mtd.h>
19#include <linux/mtd/onenand.h>
20
21struct mtd_info onenand_mtd;
22struct onenand_chip onenand_chip;
Stefan Roesedbe29e32009-04-24 15:59:35 +020023static __attribute__((unused)) char dev_name[] = "onenand0";
Kyungmin Park6cb22392008-01-15 08:59:44 +090024
25void onenand_init(void)
26{
Ladislav Michl77b93e52016-07-12 20:28:20 +020027 int err = 0;
Kyungmin Park6cb22392008-01-15 08:59:44 +090028 memset(&onenand_mtd, 0, sizeof(struct mtd_info));
29 memset(&onenand_chip, 0, sizeof(struct onenand_chip));
30
Kyungmin Park6cb22392008-01-15 08:59:44 +090031 onenand_mtd.priv = &onenand_chip;
32
Kyungmin Parkef0921d2008-11-04 09:24:07 +090033#ifdef CONFIG_USE_ONENAND_BOARD_INIT
Ladislav Michl77b93e52016-07-12 20:28:20 +020034 /* It's used for some board init required */
35 err = onenand_board_init(&onenand_mtd);
Kyungmin Parkef0921d2008-11-04 09:24:07 +090036#else
37 onenand_chip.base = (void *) CONFIG_SYS_ONENAND_BASE;
38#endif
39
Ladislav Michl77b93e52016-07-12 20:28:20 +020040 if (!err && !(onenand_scan(&onenand_mtd, 1))) {
Kyungmin Park6cb22392008-01-15 08:59:44 +090041
Ladislav Michl77b93e52016-07-12 20:28:20 +020042 if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND)
43 puts("Flex-");
44 puts("OneNAND: ");
Stefan Roesedbe29e32009-04-24 15:59:35 +020045
Miquel Raynal888f1842019-10-03 19:50:05 +020046#ifdef CONFIG_MTD
Ladislav Michl77b93e52016-07-12 20:28:20 +020047 /*
48 * Add MTD device so that we can reference it later
49 * via the mtdcore infrastructure (e.g. ubi).
50 */
51 onenand_mtd.name = dev_name;
52 add_mtd_device(&onenand_mtd);
Stefan Roesedbe29e32009-04-24 15:59:35 +020053#endif
Ladislav Michl77b93e52016-07-12 20:28:20 +020054 }
55 print_size(onenand_chip.chipsize, "\n");
Kyungmin Park6cb22392008-01-15 08:59:44 +090056}