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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/sun3/prom/misc.c
downloadconfigs-2.6.12-rc2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m68k/sun3/prom/misc.c')
-rw-r--r--arch/m68k/sun3/prom/misc.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/m68k/sun3/prom/misc.c b/arch/m68k/sun3/prom/misc.c
new file mode 100644
index 00000000000..b88716f2c68
--- /dev/null
+++ b/arch/m68k/sun3/prom/misc.c
@@ -0,0 +1,94 @@
+/* $Id: misc.c,v 1.15 1997/05/14 20:45:00 davem Exp $
+ * misc.c: Miscellaneous prom functions that don't belong
+ * anywhere else.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/sun3-head.h>
+#include <asm/idprom.h>
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <asm/movs.h>
+
+/* Reset and reboot the machine with the command 'bcommand'. */
+void
+prom_reboot(char *bcommand)
+{
+ unsigned long flags;
+ local_irq_save(flags);
+ (*(romvec->pv_reboot))(bcommand);
+ local_irq_restore(flags);
+}
+
+/* Drop into the prom, with the chance to continue with the 'go'
+ * prom command.
+ */
+void
+prom_cmdline(void)
+{
+}
+
+/* Drop into the prom, but completely terminate the program.
+ * No chance of continuing.
+ */
+void
+prom_halt(void)
+{
+ unsigned long flags;
+again:
+ local_irq_save(flags);
+ (*(romvec->pv_halt))();
+ local_irq_restore(flags);
+ goto again; /* PROM is out to get me -DaveM */
+}
+
+typedef void (*sfunc_t)(void);
+
+/* Get the idprom and stuff it into buffer 'idbuf'. Returns the
+ * format type. 'num_bytes' is the number of bytes that your idbuf
+ * has space for. Returns 0xff on error.
+ */
+unsigned char
+prom_get_idprom(char *idbuf, int num_bytes)
+{
+ int i, oldsfc;
+ GET_SFC(oldsfc);
+ SET_SFC(FC_CONTROL);
+ for(i=0;i<num_bytes; i++)
+ {
+ /* There is a problem with the GET_CONTROL_BYTE
+ macro; defining the extra variable
+ gets around it.
+ */
+ int c;
+ GET_CONTROL_BYTE(SUN3_IDPROM_BASE + i, c);
+ idbuf[i] = c;
+ }
+ SET_SFC(oldsfc);
+ return idbuf[0];
+}
+
+/* Get the major prom version number. */
+int
+prom_version(void)
+{
+ return romvec->pv_romvers;
+}
+
+/* Get the prom plugin-revision. */
+int
+prom_getrev(void)
+{
+ return prom_rev;
+}
+
+/* Get the prom firmware print revision. */
+int
+prom_getprev(void)
+{
+ return prom_prev;
+}