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/*
*
* BRIEF MODULE DESCRIPTION
* IT8172/QED5231 board setup.
*
* Copyright 2000 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
* ppopov@mvista.com or 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/mm.h>
#include <linux/sched.h>
#include <linux/bootmem.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <linux/config.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/it8172/it8172.h>
#include <asm/it8172/it8172_dbg.h>
int prom_argc;
char **prom_argv, **prom_envp;
extern char _end;
extern void __init prom_init_cmdline(void);
extern unsigned long __init prom_get_memsize(void);
extern void __init it8172_init_ram_resource(unsigned long memsize);
#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
int __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
{
unsigned long mem_size;
unsigned long pcicr;
prom_argc = argc;
prom_argv = argv;
prom_envp = envp;
puts("ITE board running...");
mips_machgroup = MACH_GROUP_ITE;
mips_machtype = MACH_QED_4N_S01B; /* ITE board name/number */
prom_init_cmdline();
mem_size = prom_get_memsize();
printk("Memory size: %dMB\n", (unsigned)mem_size);
mem_size <<= 20; /* MB */
/*
* make the entire physical memory visible to pci bus masters
*/
IT_READ(IT_MC_PCICR, pcicr);
pcicr &= ~0x1f;
pcicr |= (mem_size - 1) >> 22;
IT_WRITE(IT_MC_PCICR, pcicr);
it8172_init_ram_resource(mem_size);
add_memory_region(0, mem_size, BOOT_MEM_RAM);
return 0;
}
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