![Zhang Le](/assets/img/avatar_default.png)
Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*
|
|
* BRIEF MODULE DESCRIPTION
|
|
* setup.c - board dependent boot routines
|
|
*
|
|
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
|
|
* Author: Fuxin Zhang, zhangfx@lemote.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/bootmem.h>
|
|
#include <linux/init.h>
|
|
#include <linux/irq.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/mc146818-time.h>
|
|
#include <asm/time.h>
|
|
#include <asm/wbflush.h>
|
|
#include <asm/mach-lemote/pci.h>
|
|
|
|
#ifdef CONFIG_VT
|
|
#include <linux/console.h>
|
|
#include <linux/screen_info.h>
|
|
#endif
|
|
|
|
extern void mips_reboot_setup(void);
|
|
|
|
unsigned long cpu_clock_freq;
|
|
unsigned long bus_clock;
|
|
unsigned int memsize;
|
|
unsigned int highmemsize = 0;
|
|
|
|
void __init plat_time_init(void)
|
|
{
|
|
/* setup mips r4k timer */
|
|
mips_hpt_frequency = cpu_clock_freq / 2;
|
|
}
|
|
|
|
unsigned long read_persistent_clock(void)
|
|
{
|
|
return mc146818_get_cmos_time();
|
|
}
|
|
|
|
void (*__wbflush)(void);
|
|
EXPORT_SYMBOL(__wbflush);
|
|
|
|
static void wbflush_loongson2e(void)
|
|
{
|
|
asm(".set\tpush\n\t"
|
|
".set\tnoreorder\n\t"
|
|
".set mips3\n\t"
|
|
"sync\n\t"
|
|
"nop\n\t"
|
|
".set\tpop\n\t"
|
|
".set mips0\n\t");
|
|
}
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
set_io_port_base((unsigned long)ioremap(LOONGSON2E_IO_PORT_BASE,
|
|
IO_SPACE_LIMIT - LOONGSON2E_PCI_IO_START + 1));
|
|
mips_reboot_setup();
|
|
|
|
__wbflush = wbflush_loongson2e;
|
|
|
|
add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
|
|
#ifdef CONFIG_64BIT
|
|
if (highmemsize > 0) {
|
|
add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_VT
|
|
#if defined(CONFIG_VGA_CONSOLE)
|
|
conswitchp = &vga_con;
|
|
|
|
screen_info = (struct screen_info) {
|
|
0, 25, /* orig-x, orig-y */
|
|
0, /* unused */
|
|
0, /* orig-video-page */
|
|
0, /* orig-video-mode */
|
|
80, /* orig-video-cols */
|
|
0, 0, 0, /* ega_ax, ega_bx, ega_cx */
|
|
25, /* orig-video-lines */
|
|
VIDEO_TYPE_VGAC, /* orig-video-isVGA */
|
|
16 /* orig-video-points */
|
|
};
|
|
#elif defined(CONFIG_DUMMY_CONSOLE)
|
|
conswitchp = &dummy_con;
|
|
#endif
|
|
#endif
|
|
|
|
}
|