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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
172 lines
3.5 KiB
C
172 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2000, 2001, 2002, 2003, 2004 Broadcom Corporation
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* Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
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*/
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/*
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* Setup code for the SWARM board
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*/
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#include <linux/spinlock.h>
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#include <linux/mm.h>
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#include <linux/memblock.h>
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#include <linux/blkdev.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/screen_info.h>
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#include <linux/initrd.h>
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#include <asm/irq.h>
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#include <asm/io.h>
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#include <asm/bootinfo.h>
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#include <asm/mipsregs.h>
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#include <asm/reboot.h>
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#include <asm/time.h>
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#include <asm/traps.h>
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#include <asm/sibyte/sb1250.h>
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#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
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#include <asm/sibyte/bcm1480_regs.h>
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#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
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#include <asm/sibyte/sb1250_regs.h>
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#else
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#error invalid SiByte board configuration
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#endif
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#include <asm/sibyte/sb1250_genbus.h>
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#include <asm/sibyte/board.h>
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#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
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extern void bcm1480_setup(void);
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#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
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extern void sb1250_setup(void);
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#else
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#error invalid SiByte board configuration
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#endif
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extern int xicor_probe(void);
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extern int xicor_set_time(time64_t);
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extern time64_t xicor_get_time(void);
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extern int m41t81_probe(void);
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extern int m41t81_set_time(time64_t);
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extern time64_t m41t81_get_time(void);
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const char *get_system_type(void)
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{
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return "SiByte " SIBYTE_BOARD_NAME;
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}
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int swarm_be_handler(struct pt_regs *regs, int is_fixup)
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{
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if (!is_fixup && (regs->cp0_cause & 4)) {
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/* Data bus error - print PA */
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printk("DBE physical address: %010Lx\n",
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__read_64bit_c0_register($26, 1));
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}
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return is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
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}
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enum swarm_rtc_type {
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RTC_NONE,
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RTC_XICOR,
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RTC_M41T81,
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};
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enum swarm_rtc_type swarm_rtc_type;
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void read_persistent_clock64(struct timespec64 *ts)
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{
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time64_t sec;
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switch (swarm_rtc_type) {
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case RTC_XICOR:
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sec = xicor_get_time();
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break;
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case RTC_M41T81:
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sec = m41t81_get_time();
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break;
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case RTC_NONE:
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default:
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sec = mktime64(2000, 1, 1, 0, 0, 0);
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break;
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}
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ts->tv_sec = sec;
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ts->tv_nsec = 0;
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}
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int update_persistent_clock64(struct timespec64 now)
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{
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time64_t sec = now.tv_sec;
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switch (swarm_rtc_type) {
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case RTC_XICOR:
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return xicor_set_time(sec);
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case RTC_M41T81:
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return m41t81_set_time(sec);
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case RTC_NONE:
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default:
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return -1;
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}
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}
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void __init plat_mem_setup(void)
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{
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#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
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bcm1480_setup();
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#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
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sb1250_setup();
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#else
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#error invalid SiByte board configuration
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#endif
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board_be_handler = swarm_be_handler;
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if (xicor_probe())
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swarm_rtc_type = RTC_XICOR;
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if (m41t81_probe())
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swarm_rtc_type = RTC_M41T81;
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#ifdef CONFIG_VT
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screen_info = (struct screen_info) {
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.orig_video_page = 52,
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.orig_video_mode = 3,
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.orig_video_cols = 80,
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.flags = 12,
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.orig_video_ega_bx = 3,
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.orig_video_lines = 25,
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.orig_video_isVGA = 0x22,
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.orig_video_points = 16,
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};
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/* XXXKW for CFE, get lines/cols from environment */
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#endif
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}
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#ifdef LEDS_PHYS
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#ifdef CONFIG_SIBYTE_CARMEL
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/* XXXKW need to detect Monterey/LittleSur/etc */
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#undef LEDS_PHYS
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#define LEDS_PHYS MLEDS_PHYS
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#endif
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void setleds(char *str)
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{
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void *reg;
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int i;
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for (i = 0; i < 4; i++) {
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reg = IOADDR(LEDS_PHYS) + 0x20 + ((3 - i) << 3);
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if (!str[i])
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writeb(' ', reg);
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else
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writeb(str[i], reg);
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}
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}
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#endif /* LEDS_PHYS */
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