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/*
* (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);
}
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