patch-2.4.10 linux/arch/mips64/mips-boards/malta/malta_setup.c

• Lines: 171
• Date: Sun Sep 9 10:43:02 2001
• Orig file: v2.4.9/linux/arch/mips64/mips-boards/malta/malta_setup.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.9/linux/arch/mips64/mips-boards/malta/malta_setup.c linux/arch/mips64/mips-boards/malta/malta_setup.c
@@ -0,0 +1,170 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * ########################################################################
+ *
+ *  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.
+ *
+ * ########################################################################
+ *
+ * Malta specific setup, including init of the feature struct.
+ *
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/mc146818rtc.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#ifdef CONFIG_BLK_DEV_IDE
+#include <linux/ide.h>
+#endif
+
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/prom.h>
+#include <asm/mips-boards/gt64120.h>
+#include <asm/mips-boards/malta.h>
+#include <asm/mips-boards/maltaint.h>
+#ifdef CONFIG_BLK_DEV_FD
+#include <asm/floppy.h>
+#endif
+#include <asm/dma.h>
+#include <asm/mmu_context.h>
+
+#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_PROM_CONSOLE)
+extern void console_setup(char *, int *);
+char serial_console[20];
+#endif
+
+#ifdef CONFIG_REMOTE_DEBUG
+extern void set_debug_traps(void);
+extern void rs_kgdb_hook(int);
+extern void breakpoint(void);
+static int remote_debug = 0;
+#endif
+
+#ifdef CONFIG_BLK_DEV_IDE
+extern struct ide_ops std_ide_ops;
+#endif
+#ifdef CONFIG_BLK_DEV_FD
+extern struct fd_ops std_fd_ops;
+#endif
+extern struct rtc_ops malta_rtc_ops;
+
+extern void mips_reboot_setup(void);
+
+struct resource standard_io_resources[] = {
+	{ "dma1", 0x00, 0x1f, IORESOURCE_BUSY },
+	{ "pic1", 0x20, 0x3f, IORESOURCE_BUSY },
+	{ "timer", 0x40, 0x5f, IORESOURCE_BUSY },
+	{ "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY },
+	{ "pic2", 0xa0, 0xbf, IORESOURCE_BUSY },
+	{ "dma2", 0xc0, 0xdf, IORESOURCE_BUSY },
+};
+
+#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource))
+
+static void __init malta_irq_setup(void)
+{
+  	maltaint_init();
+
+#ifdef CONFIG_REMOTE_DEBUG
+	if (remote_debug) {
+		set_debug_traps();
+		breakpoint(); 
+	}
+#endif
+}
+
+
+void __init malta_setup(void)
+{
+#ifdef CONFIG_REMOTE_DEBUG
+	int rs_putDebugChar(char);
+	char rs_getDebugChar(void);
+	extern int (*putDebugChar)(char);
+	extern char (*getDebugChar)(void);
+#endif
+	char *argptr;
+	int i;
+
+	current_cpu_data.asid_cache = ASID_FIRST_VERSION;
+	TLBMISS_HANDLER_SETUP();
+
+	irq_setup = malta_irq_setup;
+
+	/* Request I/O space for devices used on the Malta board. */
+	for (i = 0; i < STANDARD_IO_RESOURCES; i++)
+		request_resource(&ioport_resource, standard_io_resources+i);
+
+	/* 
+	 * Enable DMA channel 4 (cascade channel) in the PIIX4 south bridge.
+	 */
+	enable_dma(4);
+
+#ifdef CONFIG_SERIAL_CONSOLE
+        argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "console=ttyS0")) == NULL) 
+	{
+	        int i=0;
+	        char *s = prom_getenv("modetty0");
+		while(s[i] >= '0' && s[i] <= '9')
+			i++;
+		strcpy(serial_console, "ttyS0,");
+		strncpy(serial_console + 6, s, i);
+		prom_printf("Config serial console: %s\n", serial_console);
+	        console_setup(serial_console, NULL);
+	}
+#endif	  
+
+#ifdef CONFIG_REMOTE_DEBUG
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "kgdb=ttyS")) != NULL) {
+		int line;
+		argptr += strlen("kgdb=ttyS");
+		if (*argptr != '0' && *argptr != '1')
+			printk("KGDB: Uknown serial line /dev/ttyS%c, "
+			       "falling back to /dev/ttyS1\n", *argptr);
+		line = *argptr == '0' ? 0 : 1;
+		printk("KGDB: Using serial line /dev/ttyS%d for session\n",
+		       line ? 1 : 0);
+
+		rs_kgdb_hook(line);
+		putDebugChar = rs_putDebugChar;
+		getDebugChar = rs_getDebugChar;
+
+		prom_printf("KGDB: Using serial line /dev/ttyS%d for session, "
+			    "please connect your debugger\n", line ? 1 : 0);
+
+		remote_debug = 1;
+		/* Breakpoints and stuff are in malta_irq_setup() */
+	}
+#endif
+
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "nofpu")) != NULL)
+		mips_cpu.options &= ~MIPS_CPU_FPU;
+
+	rtc_ops = &malta_rtc_ops;
+#ifdef CONFIG_BLK_DEV_IDE
+        ide_ops = &std_ide_ops;
+#endif
+#ifdef CONFIG_BLK_DEV_FD
+        fd_ops = &std_fd_ops;
+#endif
+}