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