1 /* 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> 17 #include <linux/compat.h> 18 #include <linux/mtd/mtd.h> 19 #include <linux/mtd/onenand.h> 20 21 struct mtd_info onenand_mtd; 22 struct onenand_chip onenand_chip; 23 static __attribute__((unused)) char dev_name[] = "onenand0"; 24 onenand_init(void)25void onenand_init(void) 26 { 27 int err = 0; 28 memset(&onenand_mtd, 0, sizeof(struct mtd_info)); 29 memset(&onenand_chip, 0, sizeof(struct onenand_chip)); 30 31 onenand_mtd.priv = &onenand_chip; 32 33 #ifdef CONFIG_USE_ONENAND_BOARD_INIT 34 /* It's used for some board init required */ 35 err = onenand_board_init(&onenand_mtd); 36 #else 37 onenand_chip.base = (void *) CONFIG_SYS_ONENAND_BASE; 38 #endif 39 40 if (!err && !(onenand_scan(&onenand_mtd, 1))) { 41 42 if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND) 43 puts("Flex-"); 44 puts("OneNAND: "); 45 46 #ifdef CONFIG_MTD_DEVICE 47 /* 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); 53 #endif 54 } 55 print_size(onenand_chip.chipsize, "\n"); 56 } 57