| /* |
| * 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/config.h> |
| #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/tty.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 configuation |
| #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 configuation |
| #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; |
| } |
| |
| void __init swarm_timer_setup(struct irqaction *irq) |
| { |
| /* |
| * we don't set up irqaction, because we will deliver timer |
| * interrupts through low-level (direct) meachanism. |
| */ |
| |
| /* We only need to setup the generic timer */ |
| #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
| bcm1480_time_init(); |
| #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) |
| sb1250_time_init(); |
| #else |
| #error invalid SiByte board configuation |
| #endif |
| } |
| |
| 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); |
| } |
| |
| void __init plat_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 configuation |
| #endif |
| |
| panic_timeout = 5; /* For debug. */ |
| |
| board_timer_setup = swarm_timer_setup; |
| board_be_handler = swarm_be_handler; |
| |
| if (xicor_probe()) { |
| printk("swarm setup: Xicor 1241 RTC detected.\n"); |
| rtc_get_time = xicor_get_time; |
| rtc_set_time = xicor_set_time; |
| } |
| |
| if (m41t81_probe()) { |
| printk("swarm setup: M41T81 RTC detected.\n"); |
| rtc_get_time = m41t81_get_time; |
| rtc_set_time = m41t81_set_time; |
| } |
| |
| printk("This kernel optimized for " |
| #ifdef CONFIG_SIMULATION |
| "simulation" |
| #else |
| "board" |
| #endif |
| " runs " |
| #ifdef CONFIG_SIBYTE_CFE |
| "with" |
| #else |
| "without" |
| #endif |
| " CFE\n"); |
| |
| #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 |
| |
| #define setled(index, c) \ |
| ((unsigned char *)(IOADDR(LEDS_PHYS)+0x20))[(3-(index))<<3] = (c) |
| void setleds(char *str) |
| { |
| int i; |
| for (i = 0; i < 4; i++) { |
| if (!str[i]) { |
| setled(i, ' '); |
| } else { |
| setled(i, str[i]); |
| } |
| } |
| } |
| #endif |