11ac559d4STsiChungLiew /* 21ac559d4STsiChungLiew * (C) Copyright 2000-2003 31ac559d4STsiChungLiew * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 41ac559d4STsiChungLiew * 51ac559d4STsiChungLiew * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. 61ac559d4STsiChungLiew * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 71ac559d4STsiChungLiew * 81ac559d4STsiChungLiew * See file CREDITS for list of people who contributed to this 91ac559d4STsiChungLiew * project. 101ac559d4STsiChungLiew * 111ac559d4STsiChungLiew * This program is free software; you can redistribute it and/or 121ac559d4STsiChungLiew * modify it under the terms of the GNU General Public License as 131ac559d4STsiChungLiew * published by the Free Software Foundation; either version 2 of 141ac559d4STsiChungLiew * the License, or (at your option) any later version. 151ac559d4STsiChungLiew * 161ac559d4STsiChungLiew * This program is distributed in the hope that it will be useful, 171ac559d4STsiChungLiew * but WITHOUT ANY WARRANTY; without even the implied warranty of 181ac559d4STsiChungLiew * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 191ac559d4STsiChungLiew * GNU General Public License for more details. 201ac559d4STsiChungLiew * 211ac559d4STsiChungLiew * You should have received a copy of the GNU General Public License 221ac559d4STsiChungLiew * along with this program; if not, write to the Free Software 231ac559d4STsiChungLiew * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 241ac559d4STsiChungLiew * MA 02111-1307 USA 251ac559d4STsiChungLiew */ 261ac559d4STsiChungLiew 271ac559d4STsiChungLiew #include <config.h> 281ac559d4STsiChungLiew #include <common.h> 291ac559d4STsiChungLiew #include <asm/io.h> 301ac559d4STsiChungLiew #include <asm/immap.h> 311ac559d4STsiChungLiew 321ac559d4STsiChungLiew DECLARE_GLOBAL_DATA_PTR; 331ac559d4STsiChungLiew 341ac559d4STsiChungLiew #if defined(CONFIG_CMD_NAND) 351ac559d4STsiChungLiew #include <nand.h> 361ac559d4STsiChungLiew #include <linux/mtd/mtd.h> 371ac559d4STsiChungLiew 381ac559d4STsiChungLiew #define SET_CLE 0x10 391ac559d4STsiChungLiew #define SET_ALE 0x08 401ac559d4STsiChungLiew 41*f64cb652SScott Wood static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl) 421ac559d4STsiChungLiew { 431ac559d4STsiChungLiew struct nand_chip *this = mtdinfo->priv; 441ac559d4STsiChungLiew volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS; 451ac559d4STsiChungLiew u32 nand_baseaddr = (u32) this->IO_ADDR_W; 461ac559d4STsiChungLiew 47*f64cb652SScott Wood if (ctrl & NAND_CTRL_CHANGE) { 48*f64cb652SScott Wood ulong IO_ADDR_W = (ulong) this->IO_ADDR_W; 49*f64cb652SScott Wood IO_ADDR_W &= ~(SET_ALE | SE_CLE); 50*f64cb652SScott Wood 51*f64cb652SScott Wood if (ctrl & NAND_CLE) 52*f64cb652SScott Wood IO_ADDR_W |= SET_CLE; 53*f64cb652SScott Wood if (ctrl & NAND_ALE) 54*f64cb652SScott Wood IO_ADDR_W |= SET_ALE; 55*f64cb652SScott Wood 56*f64cb652SScott Wood at91_set_gpio_value(AT91_PIN_PD15, !(ctrl & NAND_NCE)); 57*f64cb652SScott Wood this->IO_ADDR_W = (void *)IO_ADDR_W; 58*f64cb652SScott Wood 591ac559d4STsiChungLiew } 601ac559d4STsiChungLiew 61*f64cb652SScott Wood if (cmd != NAND_CMD_NONE) 62*f64cb652SScott Wood writeb(cmd, this->IO_ADDR_W); 631ac559d4STsiChungLiew } 641ac559d4STsiChungLiew 651ac559d4STsiChungLiew int board_nand_init(struct nand_chip *nand) 661ac559d4STsiChungLiew { 671ac559d4STsiChungLiew volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; 68*f64cb652SScott Wood volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS; 691ac559d4STsiChungLiew 701ac559d4STsiChungLiew *((volatile u16 *)CFG_LATCH_ADDR) |= 0x0004; 71*f64cb652SScott Wood fbcs->csmr2 &= ~FBCS_CSMR_WP; 721ac559d4STsiChungLiew 731ac559d4STsiChungLiew /* set up pin configuration */ 741ac559d4STsiChungLiew gpio->par_timer &= ~GPIO_PAR_TIN3_TIN3; 751ac559d4STsiChungLiew gpio->pddr_timer |= 0x08; 761ac559d4STsiChungLiew gpio->ppd_timer |= 0x08; 771ac559d4STsiChungLiew gpio->pclrr_timer = 0; 781ac559d4STsiChungLiew gpio->podr_timer = 0; 791ac559d4STsiChungLiew 801ac559d4STsiChungLiew nand->chip_delay = 50; 81*f64cb652SScott Wood nand->ecc.mode = NAND_ECC_SOFT; 82*f64cb652SScott Wood nand->cmd_ctrl = nand_hwcontrol; 831ac559d4STsiChungLiew 841ac559d4STsiChungLiew return 0; 851ac559d4STsiChungLiew } 861ac559d4STsiChungLiew #endif 87