patch-2.4.25 linux-2.4.25/arch/mips/pmc-sierra/yosemite/setup.c

• Lines: 159
• Date: 2004-02-18 05:36:30.000000000 -0800
• Orig file: linux-2.4.24/arch/mips/pmc-sierra/yosemite/setup.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.24/arch/mips/pmc-sierra/yosemite/setup.c linux-2.4.25/arch/mips/pmc-sierra/yosemite/setup.c
@@ -0,0 +1,158 @@
+/*
+ *  arch/mips/pmc-sierra/yosemite/setup.c
+ *
+ *  Copyright (C) 2003 PMC-Sierra Inc.
+ *  Author: Manish Lachwani (lachwani@pmc-sierra.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/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mc146818rtc.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/timex.h>
+#include <linux/vmalloc.h>
+#include <asm/time.h>
+#include <asm/bootinfo.h>
+#include <asm/page.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/processor.h>
+#include <asm/ptrace.h>
+#include <asm/reboot.h>
+#include <linux/bootmem.h>
+#include <linux/blk.h>
+
+#include "setup.h"
+
+unsigned long cpu_clock;
+unsigned long yosemite_base;
+
+void __init bus_error_init(void) 
+{ 
+	/* Do nothing */ 
+}
+
+unsigned long m48t37y_get_time(void)
+{
+	unsigned char	*rtc_base = YOSEMITE_RTC_BASE;
+	unsigned int	year, month, day, hour, min, sec;
+
+	/* Stop the update to the time */
+	rtc_base[0x7ff8] = 0x40;
+
+	year = CONV_BCD_TO_BIN(rtc_base[0x7fff]);
+	year += CONV_BCD_TO_BIN(rtc_base[0x7fff1]) * 100;
+
+	month = CONV_BCD_TO_BIN(rtc_base[0x7ffe]);
+	day = CONV_BCD_TO_BIN(rtc_base[0x7ffd]);
+	hour = CONV_BCD_TO_BIN(rtc_base[0x7ffb]);
+	min = CONV_BCD_TO_BIN(rtc_base[0x7ffa]);
+	sec = CONV_BCD_TO_BIN(rtc_base[0x7ff9]);
+
+	/* Start the update to the time again */
+	rtc_base[0x7ff8] = 0x00;
+
+	return mktime(year, month, day, hour, min, sec);
+}
+
+int m48t37y_set_time(unsigned long sec)
+{
+	unsigned char   *rtc_base = YOSEMITE_RTC_BASE;
+        unsigned int    year, month, day, hour, min, sec;
+
+        struct rtc_time tm;
+
+        /* convert to a more useful format -- note months count from 0 */
+        to_tm(sec, &tm);
+        tm.tm_mon += 1;
+
+        /* enable writing */
+        rtc_base[0x7ff8] = 0x80;
+
+        /* year */
+        rtc_base[0x7fff] = CONV_BIN_TO_BCD(tm.tm_year % 100);
+        rtc_base[0x7ff1] = CONV_BIN_TO_BCD(tm.tm_year / 100);
+
+        /* month */
+        rtc_base[0x7ffe] = CONV_BIN_TO_BCD(tm.tm_mon);
+
+        /* day */
+        rtc_base[0x7ffd] = CONV_BIN_TO_BCD(tm.tm_mday);
+
+        /* hour/min/sec */
+        rtc_base[0x7ffb] = CONV_BIN_TO_BCD(tm.tm_hour);
+        rtc_base[0x7ffa] = CONV_BIN_TO_BCD(tm.tm_min);
+        rtc_base[0x7ff9] = CONV_BIN_TO_BCD(tm.tm_sec);
+
+        /* day of week -- not really used, but let's keep it up-to-date */
+        rtc_base[0x7ffc] = CONV_BIN_TO_BCD(tm.tm_wday + 1);
+
+        /* disable writing */
+        rtc_base[0x7ff8] = 0x00;
+
+        return 0;
+}
+
+void yosemite_timer_setup(struct irqaction *irq)
+{
+	setup_irq(6, irq);
+}
+
+void yosemite_time_init(void)
+{
+	mips_counter_frequency = cpu_clock / 2;
+	board_timer_setup = yosemite_timer_setup;
+
+	rtc_get_time = m48t37y_get_time;
+	rtc_set_time = m48t37y_set_time;
+}
+
+void __init pmc_yosemite_setup(void)
+{
+	unsigned long	val = 0;
+
+	printk("PMC-Sierra Yosemite Board Setup  \n");
+	board_time_init = yosemite_time_init;
+
+	/* Add memory regions */
+	add_memory_region(0x00000000, 0x10000000, BOOT_MEM_RAM);
+	add_memory_region(0x10000000, 0x10000000, BOOT_MEM_RAM);
+
+	/* Setup the HT controller */
+	val = *(volatile u_int32_t *)(HYPERTRANSPORT_CONFIG_REG);
+	val |= HYPERTRANSPORT_ENABLE;
+        *(volatile u_int32_t *)(HYPERTRANSPORT_CONFIG_REG) = val;
+
+        /* Set the BAR. Shifted mode */
+        *(volatile u_int32_t *)(HYPERTRANSPORT_BAR0_REG) = HYPERTRANSPORT_BAR0_ADDR;
+        *(volatile u_int32_t *)(HYPERTRANSPORT_SIZE0_REG) = HYPERTRANSPORT_SIZE0;
+}
+	
+