patch-2.1.44 linux/arch/mips/sgi/prom/init.c

• Lines: 60
• Date: Thu Jun 26 12:33:38 1997
• Orig file: v2.1.43/linux/arch/mips/sgi/prom/init.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.43/linux/arch/mips/sgi/prom/init.c linux/arch/mips/sgi/prom/init.c
@@ -0,0 +1,59 @@
+/* $Id: init.c,v 1.1 1997/06/06 09:37:06 ralf Exp $
+ * init.c: PROM library initialisation code.
+ *
+ * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ */
+
+#include <linux/kernel.h>
+
+#include <asm/sgialib.h>
+
+/* #define DEBUG_PROM_INIT */
+
+/* Master romvec interface. */
+struct linux_romvec *romvec;
+struct linux_promblock *sgi_pblock;
+int prom_argc;
+char **prom_argv, **prom_envp;
+unsigned short prom_vers, prom_rev;
+
+extern void prom_testtree(void);
+
+int prom_init(int argc, char **argv, char **envp)
+{
+	struct linux_promblock *pb;
+
+	romvec = ROMVECTOR;
+	pb = sgi_pblock = PROMBLOCK;
+	prom_argc = argc;
+	prom_argv = argv;
+	prom_envp = envp;
+
+	if(pb->magic != 0x53435241) {
+		prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic);
+		while(1)
+			;
+	}
+
+	prom_init_cmdline();
+
+	prom_vers = pb->ver;
+	prom_rev = pb->rev;
+	printk("PROMLIB: SGI ARCS firmware Version %d Revision %d\n",
+		    prom_vers, prom_rev);
+	prom_meminit();
+	prom_setup_archtags();
+
+#if 0
+	prom_testtree();
+#endif
+
+#ifdef DEBUG_PROM_INIT
+	{
+		prom_printf("Press a key to reboot\n");
+		(void) prom_getchar();
+		romvec->imode();
+	}
+#endif
+	return 0;
+}