patch-2.4.22 linux-2.4.22/arch/mips/lasat/setup.c

• Lines: 224
• Date: 2003-08-25 04:44:40.000000000 -0700
• Orig file: linux-2.4.21/arch/mips/lasat/setup.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/arch/mips/lasat/setup.c linux-2.4.22/arch/mips/lasat/setup.c
@@ -0,0 +1,223 @@
+/*
+ * setup.c
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ * Brian Murphy <brian@murphy.dk>
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * Lasat specific setup.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+
+#include <linux/interrupt.h>
+#include <asm/time.h>
+
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/lasat/lasat.h>
+
+#include <linux/serial.h>
+#include <asm/serial.h>
+#include <asm/lasat/serial.h>
+
+#if CONFIG_PICVUE
+#include <linux/notifier.h>
+#endif
+
+#include "ds1603.h"
+#include "at93c.h"
+#include <asm/lasat/ds1603.h>
+#include <asm/lasat/picvue.h>
+#include <asm/lasat/eeprom.h>
+
+#include "prom.h"
+
+int lasat_command_line = 0;
+void lasatint_init(void);
+
+#ifdef CONFIG_BLK_DEV_IDE
+extern struct ide_ops std_ide_ops;
+extern struct ide_ops *ide_ops;
+#endif
+
+extern char arcs_cmdline[CL_SIZE];
+
+extern void lasat_reboot_setup(void);
+extern void pcisetup(void);
+extern void edhac_init(void *, void *, void *);
+extern void addrflt_init(void);
+
+struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
+	{(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2},
+	{(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6}
+};
+
+struct lasat_misc *lasat_misc = NULL;
+
+#ifdef CONFIG_DS1603
+static struct ds_defs ds_defs[N_MACHTYPES] = {
+	{ (void *)DS1603_REG_100, (void *)DS1603_REG_100,
+		DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
+		DS1603_DATA_SHIFT_100, 0, 0 },
+	{ (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
+		DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
+		DS1603_DATA_READ_SHIFT_200, 1, 2000 }
+};
+#endif
+
+#ifdef CONFIG_PICVUE
+#include "picvue.h"
+static struct pvc_defs pvc_defs[N_MACHTYPES] = {
+	{ (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
+		PVC_E_100, PVC_RW_100, PVC_RS_100 },
+	{ (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
+		PVC_E_200, PVC_RW_200, PVC_RS_200 }
+};
+#endif
+
+static int lasat_panic_display(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+#ifdef CONFIG_PICVUE
+	unsigned char *string = ptr;
+	if (string == NULL)
+		string = "Kernel Panic";
+	pvc_dump_string(string);
+#endif
+	return NOTIFY_DONE;
+}
+
+static int lasat_panic_prom_monitor(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+	prom_monitor();
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block lasat_panic_block[] = 
+{
+	{ lasat_panic_display, NULL, INT_MAX },
+	{ lasat_panic_prom_monitor, NULL, INT_MIN }
+};
+
+#ifdef CONFIG_BLK_DEV_IDE
+static int lasat_ide_default_irq(ide_ioreg_t base) {
+	return 0;
+}
+
+static ide_ioreg_t lasat_ide_default_io_base(int index) {
+	return 0;
+}
+#endif
+
+static void lasat_time_init(void)
+{
+	mips_counter_frequency = lasat_board_info.li_cpu_hz / 2;
+}
+
+static void lasat_timer_setup(struct irqaction *irq)
+{
+
+	write_c0_compare(
+		read_c0_count() + 
+		mips_counter_frequency / HZ);
+	change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5);
+}
+
+#define MIPS_CPU_TIMER_IRQ 7
+asmlinkage void lasat_timer_interrupt(struct pt_regs *regs)
+{
+	ll_timer_interrupt(MIPS_CPU_TIMER_IRQ, regs);
+}
+
+void __init serial_init(void)
+{
+#ifdef CONFIG_SERIAL
+	struct serial_struct s;
+
+	memset(&s, 0, sizeof(s));
+
+	s.flags = STD_COM_FLAGS;
+	s.io_type = SERIAL_IO_MEM;
+
+	if (mips_machtype == MACH_LASAT_100) {
+		s.baud_base = LASAT_BASE_BAUD_100;
+		s.irq = LASATINT_UART_100;
+		s.iomem_reg_shift = LASAT_UART_REGS_SHIFT_100;
+		s.iomem_base = (u8 *)KSEG1ADDR(LASAT_UART_REGS_BASE_100);
+	} else {
+		s.baud_base = LASAT_BASE_BAUD_200;
+		s.irq = LASATINT_UART_200;
+		s.iomem_reg_shift = LASAT_UART_REGS_SHIFT_200;
+		s.iomem_base = (u8 *)KSEG1ADDR(LASAT_UART_REGS_BASE_200);
+	}
+
+	if (early_serial_setup(&s) != 0)
+		printk(KERN_ERR "Serial setup failed!\n");
+#endif
+}
+
+void __init lasat_setup(void)
+{
+	int i;
+	lasat_misc  = &lasat_misc_info[mips_machtype];
+#ifdef CONFIG_PICVUE
+	picvue = &pvc_defs[mips_machtype];
+#endif
+
+	/* Set up panic notifier */
+	for (i = 0; i < sizeof(lasat_panic_block) / sizeof(struct notifier_block); i++)
+		notifier_chain_register(&panic_notifier_list, &lasat_panic_block[i]);
+
+#ifdef CONFIG_BLK_DEV_IDE
+	ide_ops = &std_ide_ops;
+	ide_ops->ide_default_irq = &lasat_ide_default_irq;
+	ide_ops->ide_default_io_base = &lasat_ide_default_io_base;
+#endif
+
+	lasat_reboot_setup();
+
+	board_time_init = lasat_time_init;
+	board_timer_setup = lasat_timer_setup;
+
+#ifdef CONFIG_DS1603
+	ds1603 = &ds_defs[mips_machtype];
+	rtc_get_time = ds1603_read;
+	rtc_set_time = ds1603_set;
+#endif
+
+	serial_init();
+
+	/* Switch from prom exception handler to normal mode */
+	change_c0_status(ST0_BEV,0);
+
+	prom_printf("Lasat specific initialization complete\n");
+}
+
+