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/*
* setup.c
*
* BRIEF MODULE DESCRIPTION
* Galileo Evaluation Boards - board dependent boot routines
*
* Copyright (C) 2000 RidgeRun, Inc.
* Author: RidgeRun, Inc.
* glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.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/config.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/timex.h>
#include <asm/bootinfo.h>
#include <asm/page.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pci.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/reboot.h>
#include <asm/mc146818rtc.h>
#include <linux/version.h>
#include <linux/bootmem.h>
extern struct rtc_ops no_rtc_ops;
struct rtc_ops *rtc_ops;
/* These functions are used for rebooting or halting the machine*/
extern void galileo_machine_restart(char *command);
extern void galileo_machine_halt(void);
extern void galileo_machine_power_off(void);
/*
*This structure holds pointers to the pci configuration space accesses
*and interrupts allocating routine for device over the PCI
*/
extern struct pci_ops galileo_pci_ops;
extern unsigned long mips_machgroup;
char arcs_cmdline[COMMAND_LINE_SIZE] = { "console=ttyS0,115200 "
"root=/dev/nfs rw nfsroot=192.168.1.1:/mnt/disk2/fs.gal "
"ip=192.168.1.211:192.168.1.1:::gt::"
};
//struct eeprom_parameters eeprom_param;
/*
* This function is added because arch/mips/mm/init.c needs it
* basically it does nothing
*/
void prom_free_prom_memory(void)
{
}
void (*board_time_init) (struct irqaction * irq);
static unsigned char galileo_rtc_read_data(unsigned long addr)
{
return 0;
}
static void galileo_rtc_write_data(unsigned char data, unsigned long addr)
{
}
static int galileo_rtc_bcd_mode(void)
{
return 0;
}
struct rtc_ops galileo_rtc_ops = {
&galileo_rtc_read_data,
&galileo_rtc_write_data,
&galileo_rtc_bcd_mode
};
/********************************************************************
*ev64120_setup -
*
*Initializes basic routines and structures pointers, memory size (as
*given by the bios and saves the command line.
*
*
*Inputs :
*
*Outpus :
*
*********************************************************************/
extern void galileo_time_init();
void ev64120_setup(void)
{
unsigned int i, j;
//printk(KERN_INFO "ev64120_setup\n");
_machine_restart = galileo_machine_restart;
_machine_halt = galileo_machine_halt;
_machine_power_off = galileo_machine_power_off;
rtc_ops = &galileo_rtc_ops;
board_time_init = galileo_time_init;
mips_io_port_base = KSEG1;
mips_memory_upper = 32 * 1024 * 1024 | KSEG0;
set_cp0_status(ST0_FR, 0);
#ifdef CONFIG_L2_L3_CACHE
#error "external cache not implemented yet"
config_register = read_32bit_cp0_register(CP0_CONFIG);
printk("\n\n\nchecking second level cache cp0_config = %08lx\n",
config_register);
if (config_register & CONF_SC) { // second/third level cache available
config_register = config_register & (1 << 12);
write_32bit_cp0_register(CP0_CONFIG, config_register);
printk
("\n\n\nchecking second level cache cp0_config = %08lx\n",
config_register);
}
#endif
}
/********************************************************************
*SetUpBootInfo -
*
*This function is called at very first stages of kernel startup.
*It specifies for the kernel the evaluation board that the linux
*is running on. Then it saves the eprom parameters that holds the
*command line, memory size etc...
*
*Inputs :
*argc - nothing
*argv - holds a pointer to the eprom parameters
*envp - nothing
*
*Outpus :
*
*********************************************************************/
void SetUpBootInfo(int argc, char **argv, char **envp)
{
mips_machgroup = MACH_GROUP_GALILEO;
mips_machtype = MACH_EV64120A;
}
unsigned long mem_size;
void __init prom_init(int a, char **b, char **c, int *d)
{
unsigned long free_start, free_end, start_pfn, bootmap_size;
mips_machgroup = MACH_GROUP_GALILEO;
add_memory_region(0, 32 << 20, BOOT_MEM_RAM);
}
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