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authorRalf Baechle <ralf@linux-mips.org>2000-02-23 00:40:54 +0000
committerRalf Baechle <ralf@linux-mips.org>2000-02-23 00:40:54 +0000
commit529c593ece216e4aaffd36bd940cb94f1fa63129 (patch)
tree78f1c0b805f5656aa7b0417a043c5346f700a2cf /arch/ia64/sn/sn1/setup.c
parent0bd079751d25808d1972baee5c4eaa1db2227257 (diff)
Merge with 2.3.43. I did ignore all modifications to the qlogicisp.c
driver due to the Origin A64 hacks.
Diffstat (limited to 'arch/ia64/sn/sn1/setup.c')
-rw-r--r--arch/ia64/sn/sn1/setup.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/ia64/sn/sn1/setup.c b/arch/ia64/sn/sn1/setup.c
new file mode 100644
index 000000000..1e3a39ae3
--- /dev/null
+++ b/arch/ia64/sn/sn1/setup.c
@@ -0,0 +1,77 @@
+/*
+ *
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ * Copyright (C) Vijay Chander(vijay@engr.sgi.com)
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/kdev_t.h>
+#include <linux/string.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/timex.h>
+#include <linux/sched.h>
+
+#include <asm/io.h>
+#include <asm/machvec.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+
+
+/*
+ * The format of "screen_info" is strange, and due to early i386-setup
+ * code. This is just enough to make the console code think we're on a
+ * VGA color display.
+ */
+struct screen_info sn1_screen_info = {
+ orig_x: 0,
+ orig_y: 0,
+ orig_video_mode: 3,
+ orig_video_cols: 80,
+ orig_video_ega_bx: 3,
+ orig_video_lines: 25,
+ orig_video_isVGA: 1,
+ orig_video_points: 16
+};
+
+/*
+ * This is here so we can use the CMOS detection in ide-probe.c to
+ * determine what drives are present. In theory, we don't need this
+ * as the auto-detection could be done via ide-probe.c:do_probe() but
+ * in practice that would be much slower, which is painful when
+ * running in the simulator. Note that passing zeroes in DRIVE_INFO
+ * is sufficient (the IDE driver will autodetect the drive geometry).
+ */
+char drive_info[4*16];
+
+unsigned long
+sn1_map_nr (unsigned long addr)
+{
+ return MAP_NR_SN1(addr);
+}
+
+void
+sn1_setup(char **cmdline_p)
+{
+
+ ROOT_DEV = to_kdev_t(0x0301); /* default to first IDE drive */
+
+#if !defined (CONFIG_IA64_SOFTSDV_HACKS)
+ /*
+ * Program the timer to deliver timer ticks. 0x40 is the I/O port
+ * address of PIT counter 0, 0x43 is the I/O port address of the
+ * PIT control word.
+ */
+ request_region(0x40,0x20,"timer");
+ outb(0x34, 0x43); /* Control word */
+ outb(LATCH & 0xff , 0x40); /* LSB */
+ outb(LATCH >> 8, 0x40); /* MSB */
+ printk("PIT: LATCH at 0x%x%x for %d HZ\n", LATCH >> 8, LATCH & 0xff, HZ);
+#endif
+#ifdef __SMP__
+ init_smp_config();
+#endif
+ screen_info = sn1_screen_info;
+}