patch-2.4.19 linux-2.4.19/arch/mips/sgi-ip22/ip22-setup.c

• Lines: 236
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/mips/sgi-ip22/ip22-setup.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/arch/mips/sgi-ip22/ip22-setup.c linux-2.4.19/arch/mips/sgi-ip22/ip22-setup.c
@@ -0,0 +1,235 @@
+/*
+ * ip22-setup.c: SGI specific setup, including init of the feature struct.
+ *
+ * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ * Copyright (C) 1997, 1998 Ralf Baechle (ralf@gnu.org)
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kbd_ll.h>
+#include <linux/kernel.h>
+#include <linux/kdev_t.h>
+#include <linux/types.h>
+#include <linux/console.h>
+#include <linux/sched.h>
+#include <linux/tty.h>
+#include <linux/pc_keyb.h>
+
+#include <asm/addrspace.h>
+#include <asm/bcache.h>
+#include <asm/bootinfo.h>
+#include <asm/keyboard.h>
+#include <asm/irq.h>
+#include <asm/reboot.h>
+#include <asm/ds1286.h>
+#include <asm/sgialib.h>
+#include <asm/sgi/sgimc.h>
+#include <asm/sgi/sgihpc.h>
+#include <asm/sgi/sgint23.h>
+#include <asm/time.h>
+#include <asm/gdb-stub.h>
+#include <asm/traps.h>
+
+#ifdef CONFIG_REMOTE_DEBUG
+extern void rs_kgdb_hook(int);
+extern void breakpoint(void);
+static int remote_debug = 0;
+#endif
+
+#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_ARC_CONSOLE)
+extern void console_setup(char *);
+#endif
+
+extern void sgitime_init(void);
+
+extern struct hpc3_miscregs *hpc3mregs;
+extern struct rtc_ops indy_rtc_ops;
+extern void indy_reboot_setup(void);
+extern void sgi_volume_set(unsigned char);
+extern void create_gio_proc_entry(void);
+
+#define sgi_kh ((struct hpc_keyb *) &(hpc3mregs->kbdmouse0))
+
+#define KBD_STAT_IBF		0x02	/* Keyboard input buffer full */
+
+unsigned long sgi_gfxaddr;
+
+static void sgi_request_region(void)
+{
+	/* No I/O ports are being used on the Indy.  */
+}
+
+static int sgi_request_irq(void (*handler)(int, void *, struct pt_regs *))
+{
+	/* Dirty hack, this get's called as a callback from the keyboard
+	 * driver.  We piggyback the initialization of the front panel
+	 * button handling on it even though they're technically not
+	 * related with the keyboard driver in any way.  Doing it from
+	 * ip22_setup wouldn't work since kmalloc isn't initialized yet.
+	 */
+	indy_reboot_setup();
+
+	/* Ehm, well... once David used hack above, let's add yet another.
+	 * Register GIO bus proc entry here.
+	 */
+	create_gio_proc_entry();
+
+	return request_irq(SGI_KEYBD_IRQ, handler, 0, "keyboard", NULL);
+}
+
+static int sgi_aux_request_irq(void (*handler)(int, void *, struct pt_regs *))
+{
+	/* Nothing to do, interrupt is shared with the keyboard hw  */
+	return 0;
+}
+
+static void sgi_aux_free_irq(void)
+{
+	/* Nothing to do, interrupt is shared with the keyboard hw  */
+}
+
+static unsigned char sgi_read_input(void)
+{
+	return sgi_kh->data;
+}
+
+static void sgi_write_output(unsigned char val)
+{
+	int status;
+
+	do {
+		status = sgi_kh->command;
+	} while (status & KBD_STAT_IBF);
+	sgi_kh->data = val;
+}
+
+static void sgi_write_command(unsigned char val)
+{
+	int status;
+
+	do {
+		status = sgi_kh->command;
+	} while (status & KBD_STAT_IBF);
+	sgi_kh->command = val;
+}
+
+static unsigned char sgi_read_status(void)
+{
+	return sgi_kh->command;
+}
+
+struct kbd_ops sgi_kbd_ops = {
+	sgi_request_region,
+	sgi_request_irq,
+
+	sgi_aux_request_irq,
+	sgi_aux_free_irq,
+
+	sgi_read_input,
+	sgi_write_output,
+	sgi_write_command,
+	sgi_read_status
+};
+
+void __init ip22_setup(void)
+{
+#ifdef CONFIG_SERIAL_CONSOLE
+	char *ctype;
+#endif
+#ifdef CONFIG_REMOTE_DEBUG
+	char *kgdb_ttyd;
+#endif
+	sgitime_init();
+	/* Init the INDY HPC I/O controller.  Need to call this before
+	 * fucking with the memory controller because it needs to know the
+	 * boardID and whether this is a Guiness or a FullHouse machine.
+	 */
+	sgihpc_init();
+
+	/* Init INDY memory controller. */
+	sgimc_init();
+
+#ifdef CONFIG_BOARD_SCACHE
+	/* Now enable boardcaches, if any. */
+	indy_sc_init();
+#endif
+	conswitchp = NULL;
+
+#ifdef CONFIG_SERIAL_CONSOLE
+	/* ARCS console environment variable is set to "g?" for
+	 * graphics console, it is set to "d" for the first serial
+	 * line and "d2" for the second serial line.
+	 */
+	ctype = ArcGetEnvironmentVariable("console");
+	if(*ctype == 'd') {
+		if(*(ctype+1)=='2')
+			console_setup ("ttyS1");
+		else
+			console_setup ("ttyS0");
+	}
+#endif
+
+#ifdef CONFIG_REMOTE_DEBUG
+	kgdb_ttyd = prom_getcmdline();
+	if ((kgdb_ttyd = strstr(kgdb_ttyd, "kgdb=ttyd")) != NULL) {
+		int line;
+		kgdb_ttyd += strlen("kgdb=ttyd");
+		if (*kgdb_ttyd != '1' && *kgdb_ttyd != '2')
+			printk("KGDB: Uknown serial line /dev/ttyd%c, "
+			       "falling back to /dev/ttyd1\n", *kgdb_ttyd);
+		line = *kgdb_ttyd == '2' ? 0 : 1;
+		printk("KGDB: Using serial line /dev/ttyd%d for session\n",
+		       line ? 1 : 2);
+		rs_kgdb_hook(line);
+
+		printk("KGDB: Using serial line /dev/ttyd%d for session, "
+			    "please connect your debugger\n", line ? 1 : 2);
+
+		remote_debug = 1;
+		/* Breakpoints and stuff are in sgi_irq_setup() */
+	}
+#endif
+
+#ifdef CONFIG_ARC_CONSOLE
+	console_setup("ttyS0");
+#endif
+ 
+	sgi_volume_set(simple_strtoul(ArcGetEnvironmentVariable("volume"), NULL, 10));
+
+	{
+	  unsigned long *gfxinfo;
+	  long (*__vec)(void) = (void *) *(long *)((PROMBLOCK)->pvector + 0x20);
+	  gfxinfo = (unsigned long *)__vec();
+	  sgi_gfxaddr = gfxinfo[1] >= 0xa0000000 && gfxinfo[1] <= 0xc0000000 ? gfxinfo[1] - 0xa0000000 : 0;
+	}
+#ifdef CONFIG_VT
+#ifdef CONFIG_SGI_NEWPORT_CONSOLE
+	/* newport addresses? */
+	if (sgi_gfxaddr == 0x1f0f0000 || sgi_gfxaddr == 0x1f4f0000) {
+		conswitchp = &newport_con;
+
+		screen_info = (struct screen_info) {
+			0, 0,		/* orig-x, orig-y */
+			0,		/* unused */
+			0,		/* orig_video_page */
+			0,		/* orig_video_mode */
+			160,		/* orig_video_cols */
+			0, 0, 0,	/* unused, ega_bx, unused */
+			64,		/* orig_video_lines */
+			0,		/* orig_video_isVGA */
+			16		/* orig_video_points */
+		};
+	} else {
+		conswitchp = &dummy_con;
+	}
+#else
+	conswitchp = &dummy_con;
+#endif
+#endif
+
+	rtc_ops = &indy_rtc_ops;
+	kbd_ops = &sgi_kbd_ops;
+#ifdef CONFIG_PSMOUSE
+	aux_device_present = 0xaa;
+#endif
+}