16cb2239aSKyungmin Park /* 26cb2239aSKyungmin Park * drivers/mtd/onenand/onenand_uboot.c 36cb2239aSKyungmin Park * 46cb2239aSKyungmin Park * Copyright (C) 2005-2008 Samsung Electronics 56cb2239aSKyungmin Park * Kyungmin Park <kyungmin.park@samsung.com> 66cb2239aSKyungmin Park * 76cb2239aSKyungmin Park * This program is free software; you can redistribute it and/or modify 86cb2239aSKyungmin Park * it under the terms of the GNU General Public License version 2 as 96cb2239aSKyungmin Park * published by the Free Software Foundation. 106cb2239aSKyungmin Park */ 116cb2239aSKyungmin Park 126cb2239aSKyungmin Park /* 136cb2239aSKyungmin Park * OneNAND initialization at U-Boot 146cb2239aSKyungmin Park */ 156cb2239aSKyungmin Park 166cb2239aSKyungmin Park #include <common.h> 177b15e2bbSMike Frysinger #include <linux/compat.h> 186cb2239aSKyungmin Park #include <linux/mtd/mtd.h> 196cb2239aSKyungmin Park #include <linux/mtd/onenand.h> 206cb2239aSKyungmin Park 216cb2239aSKyungmin Park struct mtd_info onenand_mtd; 226cb2239aSKyungmin Park struct onenand_chip onenand_chip; 23dbe29e36SStefan Roese static __attribute__((unused)) char dev_name[] = "onenand0"; 246cb2239aSKyungmin Park onenand_init(void)256cb2239aSKyungmin Parkvoid onenand_init(void) 266cb2239aSKyungmin Park { 27*77b93e5eSLadislav Michl int err = 0; 286cb2239aSKyungmin Park memset(&onenand_mtd, 0, sizeof(struct mtd_info)); 296cb2239aSKyungmin Park memset(&onenand_chip, 0, sizeof(struct onenand_chip)); 306cb2239aSKyungmin Park 316cb2239aSKyungmin Park onenand_mtd.priv = &onenand_chip; 326cb2239aSKyungmin Park 33ef0921d6SKyungmin Park #ifdef CONFIG_USE_ONENAND_BOARD_INIT 34*77b93e5eSLadislav Michl /* It's used for some board init required */ 35*77b93e5eSLadislav Michl err = onenand_board_init(&onenand_mtd); 36ef0921d6SKyungmin Park #else 37ef0921d6SKyungmin Park onenand_chip.base = (void *) CONFIG_SYS_ONENAND_BASE; 38ef0921d6SKyungmin Park #endif 39ef0921d6SKyungmin Park 40*77b93e5eSLadislav Michl if (!err && !(onenand_scan(&onenand_mtd, 1))) { 416cb2239aSKyungmin Park 42cacbe919SAmul Kumar Saha if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND) 43cacbe919SAmul Kumar Saha puts("Flex-"); 446cb2239aSKyungmin Park puts("OneNAND: "); 45dbe29e36SStefan Roese 46d558107cSStefan Roese #ifdef CONFIG_MTD_DEVICE 47dbe29e36SStefan Roese /* 48dbe29e36SStefan Roese * Add MTD device so that we can reference it later 49dbe29e36SStefan Roese * via the mtdcore infrastructure (e.g. ubi). 50dbe29e36SStefan Roese */ 51dbe29e36SStefan Roese onenand_mtd.name = dev_name; 52dbe29e36SStefan Roese add_mtd_device(&onenand_mtd); 53dbe29e36SStefan Roese #endif 546cb2239aSKyungmin Park } 55*77b93e5eSLadislav Michl print_size(onenand_chip.chipsize, "\n"); 56*77b93e5eSLadislav Michl } 57