1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * drivers/mtd/onenand/onenand_uboot.c 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2005-2008 Samsung Electronics 5*4882a593Smuzhiyun * Kyungmin Park <kyungmin.park@samsung.com> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 8*4882a593Smuzhiyun * it under the terms of the GNU General Public License version 2 as 9*4882a593Smuzhiyun * published by the Free Software Foundation. 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* 13*4882a593Smuzhiyun * OneNAND initialization at U-Boot 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #include <common.h> 17*4882a593Smuzhiyun #include <linux/compat.h> 18*4882a593Smuzhiyun #include <linux/mtd/mtd.h> 19*4882a593Smuzhiyun #include <linux/mtd/onenand.h> 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct mtd_info onenand_mtd; 22*4882a593Smuzhiyun struct onenand_chip onenand_chip; 23*4882a593Smuzhiyun static __attribute__((unused)) char dev_name[] = "onenand0"; 24*4882a593Smuzhiyun onenand_init(void)25*4882a593Smuzhiyunvoid onenand_init(void) 26*4882a593Smuzhiyun { 27*4882a593Smuzhiyun int err = 0; 28*4882a593Smuzhiyun memset(&onenand_mtd, 0, sizeof(struct mtd_info)); 29*4882a593Smuzhiyun memset(&onenand_chip, 0, sizeof(struct onenand_chip)); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun onenand_mtd.priv = &onenand_chip; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #ifdef CONFIG_USE_ONENAND_BOARD_INIT 34*4882a593Smuzhiyun /* It's used for some board init required */ 35*4882a593Smuzhiyun err = onenand_board_init(&onenand_mtd); 36*4882a593Smuzhiyun #else 37*4882a593Smuzhiyun onenand_chip.base = (void *) CONFIG_SYS_ONENAND_BASE; 38*4882a593Smuzhiyun #endif 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun if (!err && !(onenand_scan(&onenand_mtd, 1))) { 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND) 43*4882a593Smuzhiyun puts("Flex-"); 44*4882a593Smuzhiyun puts("OneNAND: "); 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #ifdef CONFIG_MTD_DEVICE 47*4882a593Smuzhiyun /* 48*4882a593Smuzhiyun * Add MTD device so that we can reference it later 49*4882a593Smuzhiyun * via the mtdcore infrastructure (e.g. ubi). 50*4882a593Smuzhiyun */ 51*4882a593Smuzhiyun onenand_mtd.name = dev_name; 52*4882a593Smuzhiyun add_mtd_device(&onenand_mtd); 53*4882a593Smuzhiyun #endif 54*4882a593Smuzhiyun } 55*4882a593Smuzhiyun print_size(onenand_chip.chipsize, "\n"); 56*4882a593Smuzhiyun } 57