05f94eebd5
CFE is the only supported and used bootloader on the SiByte boards, the standalone kernel support has been never used outside Broadcom. Remove it and make the kernel use CFE by default. Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
179 lines
4.2 KiB
C
179 lines
4.2 KiB
C
/*
|
|
* Copyright (C) 2000, 2001, 2002, 2003, 2004 Broadcom Corporation
|
|
* Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
|
|
*
|
|
* 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 program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* Setup code for the SWARM board
|
|
*/
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/bootmem.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/screen_info.h>
|
|
#include <linux/initrd.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/io.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/mipsregs.h>
|
|
#include <asm/reboot.h>
|
|
#include <asm/time.h>
|
|
#include <asm/traps.h>
|
|
#include <asm/sibyte/sb1250.h>
|
|
#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
|
|
#include <asm/sibyte/bcm1480_regs.h>
|
|
#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
|
|
#include <asm/sibyte/sb1250_regs.h>
|
|
#else
|
|
#error invalid SiByte board configuration
|
|
#endif
|
|
#include <asm/sibyte/sb1250_genbus.h>
|
|
#include <asm/sibyte/board.h>
|
|
|
|
#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
|
|
extern void bcm1480_setup(void);
|
|
#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
|
|
extern void sb1250_setup(void);
|
|
#else
|
|
#error invalid SiByte board configuration
|
|
#endif
|
|
|
|
extern int xicor_probe(void);
|
|
extern int xicor_set_time(unsigned long);
|
|
extern unsigned long xicor_get_time(void);
|
|
|
|
extern int m41t81_probe(void);
|
|
extern int m41t81_set_time(unsigned long);
|
|
extern unsigned long m41t81_get_time(void);
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return "SiByte " SIBYTE_BOARD_NAME;
|
|
}
|
|
|
|
int swarm_be_handler(struct pt_regs *regs, int is_fixup)
|
|
{
|
|
if (!is_fixup && (regs->cp0_cause & 4)) {
|
|
/* Data bus error - print PA */
|
|
printk("DBE physical address: %010Lx\n",
|
|
__read_64bit_c0_register($26, 1));
|
|
}
|
|
return (is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL);
|
|
}
|
|
|
|
enum swarm_rtc_type {
|
|
RTC_NONE,
|
|
RTC_XICOR,
|
|
RTC_M4LT81
|
|
};
|
|
|
|
enum swarm_rtc_type swarm_rtc_type;
|
|
|
|
unsigned long read_persistent_clock(void)
|
|
{
|
|
switch (swarm_rtc_type) {
|
|
case RTC_XICOR:
|
|
return xicor_get_time();
|
|
|
|
case RTC_M4LT81:
|
|
return m41t81_get_time();
|
|
|
|
case RTC_NONE:
|
|
default:
|
|
return mktime(2000, 1, 1, 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
int rtc_mips_set_time(unsigned long sec)
|
|
{
|
|
switch (swarm_rtc_type) {
|
|
case RTC_XICOR:
|
|
return xicor_set_time(sec);
|
|
|
|
case RTC_M4LT81:
|
|
return m41t81_set_time(sec);
|
|
|
|
case RTC_NONE:
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
|
|
bcm1480_setup();
|
|
#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
|
|
sb1250_setup();
|
|
#else
|
|
#error invalid SiByte board configuration
|
|
#endif
|
|
|
|
panic_timeout = 5; /* For debug. */
|
|
|
|
board_be_handler = swarm_be_handler;
|
|
|
|
if (xicor_probe())
|
|
swarm_rtc_type = RTC_XICOR;
|
|
if (m41t81_probe())
|
|
swarm_rtc_type = RTC_M4LT81;
|
|
|
|
#ifdef CONFIG_VT
|
|
screen_info = (struct screen_info) {
|
|
0, 0, /* orig-x, orig-y */
|
|
0, /* unused */
|
|
52, /* orig_video_page */
|
|
3, /* orig_video_mode */
|
|
80, /* orig_video_cols */
|
|
4626, 3, 9, /* unused, ega_bx, unused */
|
|
25, /* orig_video_lines */
|
|
0x22, /* orig_video_isVGA */
|
|
16 /* orig_video_points */
|
|
};
|
|
/* XXXKW for CFE, get lines/cols from environment */
|
|
#endif
|
|
}
|
|
|
|
#ifdef LEDS_PHYS
|
|
|
|
#ifdef CONFIG_SIBYTE_CARMEL
|
|
/* XXXKW need to detect Monterey/LittleSur/etc */
|
|
#undef LEDS_PHYS
|
|
#define LEDS_PHYS MLEDS_PHYS
|
|
#endif
|
|
|
|
void setleds(char *str)
|
|
{
|
|
void *reg;
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
reg = IOADDR(LEDS_PHYS) + 0x20 + ((3 - i) << 3);
|
|
|
|
if (!str[i])
|
|
writeb(' ', reg);
|
|
else
|
|
writeb(str[i], reg);
|
|
}
|
|
}
|
|
|
|
#endif /* LEDS_PHYS */
|