/* * (C) Copyright 2002 * Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Marius Groeger <mgroeger@sysgo.de> * * 2004 (c) MontaVista Software, Inc. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <SA-1100.h> DECLARE_GLOBAL_DATA_PTR; /* ------------------------------------------------------------------------- */ /* * Board dependent initialisation */ #define ECOR 0x8000 #define ECOR_RESET 0x80 #define ECOR_LEVEL_IRQ 0x40 #define ECOR_WR_ATTRIB 0x04 #define ECOR_ENABLE 0x01 #define ECSR 0x8002 #define ECSR_IOIS8 0x20 #define ECSR_PWRDWN 0x04 #define ECSR_INT 0x02 #define SMC_IO_SHIFT 2 #define NCR_0 (*((volatile u_char *)(0x100000a0))) #define NCR_ENET_OSC_EN (1<<3) static inline u8 readb(volatile u8 * p) { return *p; } static inline void writeb(u8 v, volatile u8 * p) { *p = v; } static void smc_init(void) { u8 ecor; u8 ecsr; volatile u8 *addr = (volatile u8 *)(0x18000000 + (1 << 25)); NCR_0 |= NCR_ENET_OSC_EN; udelay(100); ecor = readb(addr + (ECOR << SMC_IO_SHIFT)) & ~ECOR_RESET; writeb(ecor | ECOR_RESET, addr + (ECOR << SMC_IO_SHIFT)); udelay(100); /* * The device will ignore all writes to the enable bit while * reset is asserted, even if the reset bit is cleared in the * same write. Must clear reset first, then enable the device. */ writeb(ecor, addr + (ECOR << SMC_IO_SHIFT)); writeb(ecor | ECOR_ENABLE, addr + (ECOR << SMC_IO_SHIFT)); /* * Set the appropriate byte/word mode. */ ecsr = readb(addr + (ECSR << SMC_IO_SHIFT)) & ~ECSR_IOIS8; ecsr |= ECSR_IOIS8; writeb(ecsr, addr + (ECSR << SMC_IO_SHIFT)); udelay(100); } static void neponset_init(void) { smc_init(); } int board_init(void) { gd->bd->bi_arch_number = MACH_TYPE_ASSABET; gd->bd->bi_boot_params = 0xc0000100; neponset_init(); return 0; } int dram_init(void) { gd->bd->bi_dram[0].start = PHYS_SDRAM_1; gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; return (0); }