111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
|
|
*
|
|
* (C) Copyright 2002 2003
|
|
* Network Audio Technologies, Inc. <www.netaudiotech.com>
|
|
* Adam Bezanson <bezanson@netaudiotech.com>
|
|
*
|
|
* 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 <netdev.h>
|
|
#include <asm/arch/ep93xx.h>
|
|
#include <asm/io.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define MAX_BANK_SIZE 0x04000000 /* 64 MB */
|
|
|
|
static ulong const bank_addr[CONFIG_NR_DRAM_BANKS] = {
|
|
PHYS_SDRAM_1,
|
|
#ifdef PHYS_SDRAM_2
|
|
PHYS_SDRAM_2,
|
|
#endif
|
|
#ifdef PHYS_SDRAM_3
|
|
PHYS_SDRAM_3,
|
|
#endif
|
|
#ifdef PHYS_SDRAM_4
|
|
PHYS_SDRAM_4
|
|
#endif
|
|
};
|
|
|
|
int board_init(void)
|
|
{
|
|
struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
|
|
|
|
icache_enable();
|
|
|
|
#ifdef USE_920T_MMU
|
|
dcache_enable();
|
|
#endif
|
|
|
|
/*
|
|
* set UARTBAUD bit to drive UARTs with 14.7456MHz instead of
|
|
* 14.7456/2 MHz
|
|
*/
|
|
uint32_t value = readl(&syscon->pwrcnt);
|
|
value |= SYSCON_PWRCNT_UART_BAUD;
|
|
writel(value, &syscon->pwrcnt);
|
|
|
|
/* Enable the uart in devicecfg */
|
|
value = readl(&syscon->devicecfg);
|
|
value |= 1<<18 /* U1EN */;
|
|
writel(0xAA, &syscon->sysswlock);
|
|
writel(value, &syscon->devicecfg);
|
|
|
|
/* Machine number, as defined in linux/arch/arm/tools/mach-types */
|
|
gd->bd->bi_arch_number = CONFIG_MACH_TYPE;
|
|
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
|
|
|
|
/* We have a console */
|
|
gd->have_console = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_eth_init(bd_t *bd)
|
|
{
|
|
return ep93xx_eth_initialize(0, MAC_BASE);
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
unsigned int *src, *dst;
|
|
int i;
|
|
|
|
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
|
|
const ulong bank_size = get_ram_size((long *)bank_addr[i],
|
|
MAX_BANK_SIZE);
|
|
if (bank_size) {
|
|
gd->bd->bi_dram[i].start = bank_addr[i];
|
|
gd->bd->bi_dram[i].size = bank_size;
|
|
}
|
|
}
|
|
|
|
/* copy exception vectors */
|
|
src = (unsigned int *)_armboot_start;
|
|
dst = (unsigned int *)PHYS_SDRAM_1;
|
|
memcpy(dst, src, 16 * sizeof(unsigned int));
|
|
|
|
return 0;
|
|
}
|