68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
|
|
* Common code used by all Alchemy develboards.
|
|
*
|
|
* Extracted from files which had this to say:
|
|
*
|
|
* Copyright 2000, 2008 MontaVista Software Inc.
|
|
* Author: MontaVista Software, Inc. <source@mvista.com>
|
|
*
|
|
* 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
|
|
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* 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.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/mach-au1x00/au1000.h>
|
|
#include <prom.h>
|
|
|
|
#if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_DB1000) || \
|
|
defined(CONFIG_MIPS_PB1100) || defined(CONFIG_MIPS_DB1100) || \
|
|
defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_DB1500) || \
|
|
defined(CONFIG_MIPS_BOSPORUS) || defined(CONFIG_MIPS_MIRAGE)
|
|
#define ALCHEMY_BOARD_DEFAULT_MEMSIZE 0x04000000
|
|
|
|
#else /* Au1550/Au1200-based develboards */
|
|
#define ALCHEMY_BOARD_DEFAULT_MEMSIZE 0x08000000
|
|
#endif
|
|
|
|
void __init prom_init(void)
|
|
{
|
|
unsigned char *memsize_str;
|
|
unsigned long memsize;
|
|
|
|
prom_argc = (int)fw_arg0;
|
|
prom_argv = (char **)fw_arg1;
|
|
prom_envp = (char **)fw_arg2;
|
|
|
|
prom_init_cmdline();
|
|
memsize_str = prom_getenv("memsize");
|
|
if (!memsize_str)
|
|
memsize = ALCHEMY_BOARD_DEFAULT_MEMSIZE;
|
|
else
|
|
strict_strtoul(memsize_str, 0, &memsize);
|
|
add_memory_region(0, memsize, BOOT_MEM_RAM);
|
|
}
|
|
|
|
void prom_putchar(unsigned char c)
|
|
{
|
|
alchemy_uart_putchar(UART0_PHYS_ADDR, c);
|
|
}
|