124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
/*
|
|
* Setup pointers to hardware dependent routines.
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org)
|
|
* Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
|
|
*
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/io.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/pm.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/reboot.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/gt64120.h>
|
|
|
|
#include <cobalt.h>
|
|
|
|
extern void cobalt_machine_restart(char *command);
|
|
extern void cobalt_machine_halt(void);
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
switch (cobalt_board_id) {
|
|
case COBALT_BRD_ID_QUBE1:
|
|
return "Cobalt Qube";
|
|
case COBALT_BRD_ID_RAQ1:
|
|
return "Cobalt RaQ";
|
|
case COBALT_BRD_ID_QUBE2:
|
|
return "Cobalt Qube2";
|
|
case COBALT_BRD_ID_RAQ2:
|
|
return "Cobalt RaQ2";
|
|
}
|
|
return "MIPS Cobalt";
|
|
}
|
|
|
|
/*
|
|
* Cobalt doesn't have PS/2 keyboard/mouse interfaces,
|
|
* keyboard conntroller is never used.
|
|
* Also PCI-ISA bridge DMA contoroller is never used.
|
|
*/
|
|
static struct resource cobalt_reserved_resources[] = {
|
|
{ /* dma1 */
|
|
.start = 0x00,
|
|
.end = 0x1f,
|
|
.name = "reserved",
|
|
.flags = IORESOURCE_BUSY | IORESOURCE_IO,
|
|
},
|
|
{ /* keyboard */
|
|
.start = 0x60,
|
|
.end = 0x6f,
|
|
.name = "reserved",
|
|
.flags = IORESOURCE_BUSY | IORESOURCE_IO,
|
|
},
|
|
{ /* dma page reg */
|
|
.start = 0x80,
|
|
.end = 0x8f,
|
|
.name = "reserved",
|
|
.flags = IORESOURCE_BUSY | IORESOURCE_IO,
|
|
},
|
|
{ /* dma2 */
|
|
.start = 0xc0,
|
|
.end = 0xdf,
|
|
.name = "reserved",
|
|
.flags = IORESOURCE_BUSY | IORESOURCE_IO,
|
|
},
|
|
};
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
int i;
|
|
|
|
_machine_restart = cobalt_machine_restart;
|
|
_machine_halt = cobalt_machine_halt;
|
|
pm_power_off = cobalt_machine_halt;
|
|
|
|
set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
|
|
|
|
/* I/O port resource */
|
|
ioport_resource.end = 0x01ffffff;
|
|
|
|
/* These resources have been reserved by VIA SuperI/O chip. */
|
|
for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++)
|
|
request_resource(&ioport_resource, cobalt_reserved_resources + i);
|
|
}
|
|
|
|
/*
|
|
* Prom init. We read our one and only communication with the firmware.
|
|
* Grab the amount of installed memory.
|
|
* Better boot loaders (CoLo) pass a command line too :-)
|
|
*/
|
|
|
|
void __init prom_init(void)
|
|
{
|
|
unsigned long memsz;
|
|
int argc, i;
|
|
char **argv;
|
|
|
|
memsz = fw_arg0 & 0x7fff0000;
|
|
argc = fw_arg0 & 0x0000ffff;
|
|
argv = (char **)fw_arg1;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
|
|
if (i < (argc - 1))
|
|
strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
|
|
}
|
|
|
|
add_memory_region(0x0, memsz, BOOT_MEM_RAM);
|
|
|
|
setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0);
|
|
}
|
|
|
|
void __init prom_free_prom_memory(void)
|
|
{
|
|
/* Nothing to do! */
|
|
}
|