[src/trunk]: src/sys/arch/evbsh5/dev A couple of additions:

[scw <scw%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/28cc111a28c2
branches:  trunk
changeset: 537733:28cc111a28c2
user:      scw <scw%NetBSD.org@localhost>
date:      Sat Oct 05 10:59:10 2002 +0000

description:
A couple of additions:
 - sysfpga_sreset()
   Hit the soft-reset register to reset the board.

 - sysfpga_twinkle_led()
   Might as well put the blinkenlight on the Cayman to good use as
   a "heartbeat" indicator.

diffstat:

 sys/arch/evbsh5/dev/sysfpga.c    |  52 +++++++++++++++++++++++++++++++++++++++-
 sys/arch/evbsh5/dev/sysfpgareg.h |   4 ++-
 sys/arch/evbsh5/dev/sysfpgavar.h |   3 +-
 3 files changed, 56 insertions(+), 3 deletions(-)

diffs (131 lines):

diff -r fa59044503a1 -r 28cc111a28c2 sys/arch/evbsh5/dev/sysfpga.c
--- a/sys/arch/evbsh5/dev/sysfpga.c     Sat Oct 05 10:47:51 2002 +0000
+++ b/sys/arch/evbsh5/dev/sysfpga.c     Sat Oct 05 10:59:10 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sysfpga.c,v 1.9 2002/10/02 05:33:54 thorpej Exp $      */
+/*     $NetBSD: sysfpga.c,v 1.10 2002/10/05 10:59:10 scw Exp $ */
 
 /*
  * Copyright 2002 Wasabi Systems, Inc.
@@ -42,7 +42,9 @@
 
 #include <sys/param.h>
 #include <sys/systm.h>
+#include <sys/callout.h>
 #include <sys/device.h>
+#include <sys/kernel.h>
 
 #include <machine/cpu.h>
 #include <machine/bus.h>
@@ -65,6 +67,7 @@
        struct device sc_dev;
        bus_space_tag_t sc_bust;
        bus_space_handle_t sc_bush;
+       struct callout sc_ledco;
        u_int8_t sc_intmr[SYSFPGA_NGROUPS];
        void *sc_ih[SYSFPGA_NGROUPS];
 #if NSUPERIO > 0
@@ -103,6 +106,9 @@
 #define        sysfpga_reg_write(s,r,v)        \
            bus_space_write_4((s)->sc_bust, (s)->sc_bush, (r), (v))
 
+
+static void sysfpga_twinkle_led(void *);
+
 #if NSUPERIO > 0
 static int sysfpga_intr_handler_irl1(void *);
 #endif
@@ -207,6 +213,13 @@
 #endif
 
        /*
+        * Arrange to twinkle the "Discrete LED" periodically
+        * as a crude "heartbeat" indication.
+        */
+       callout_init(&sc->sc_ledco);
+       sysfpga_twinkle_led(sc);
+
+       /*
         * Attach configured children
         */
        sa._sa_base = fa->fa_offset;
@@ -233,6 +246,35 @@
        return (UNCONF);
 }
 
+static void
+sysfpga_twinkle_led(void *arg)
+{
+       struct sysfpga_softc *sc = arg;
+       u_int32_t ledcr;
+       int next;
+
+       /*
+        * Flip the state of the Cayman's discrete LED
+        */
+       ledcr = sysfpga_reg_read(sc, SYSFPGA_REG_LEDCR);
+       ledcr ^= SYSFPGA_LEDCR_SLED_MASK;
+       sysfpga_reg_write(sc, SYSFPGA_REG_LEDCR, ledcr);
+       ledcr &= SYSFPGA_LEDCR_SLED_MASK;
+
+       /*
+        * We flash the LED twice per second, with 25% duty-cycle for ON
+        */
+#define        TWINKLE_PERIOD  (hz / 2)
+
+       next = (ledcr == SYSFPGA_LEDCR_SLED_ON) ?
+           TWINKLE_PERIOD / 4 :
+           TWINKLE_PERIOD - (TWINKLE_PERIOD / 4);
+
+#undef TWINKLE_PERIOD
+
+       callout_reset(&sc->sc_ledco, next, sysfpga_twinkle_led, sc);
+}
+
 #if NSUPERIO > 0
 static int
 sysfpga_intr_handler_irl1(void *arg)
@@ -481,3 +523,11 @@
 
        sysfpga_reg_write(sysfpga_sc, SYSFPGA_REG_NMISR, 0);
 }
+
+void
+sysfpga_sreset(void)
+{
+
+       sysfpga_reg_write(sysfpga_sc, SYSFPGA_REG_SOFT_RESET,
+           SYSFPGA_SOFT_RESET_ASSERT);
+}
diff -r fa59044503a1 -r 28cc111a28c2 sys/arch/evbsh5/dev/sysfpgareg.h
--- a/sys/arch/evbsh5/dev/sysfpgareg.h  Sat Oct 05 10:47:51 2002 +0000
+++ b/sys/arch/evbsh5/dev/sysfpgareg.h  Sat Oct 05 10:59:10 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sysfpgareg.h,v 1.1 2002/07/05 13:31:39 scw Exp $       */
+/*     $NetBSD: sysfpgareg.h,v 1.2 2002/10/05 10:59:10 scw Exp $       */
 
 /*
  * Copyright 2002 Wasabi Systems, Inc.
@@ -104,4 +104,6 @@
 #define        SYSFPGA_DATE_MONTH(r)           (((r) >> 16) & 0xff)
 #define        SYSFPGA_DATE_YEAR(r)            (((r) >> 24) & 0xff)
 
+#define        SYSFPGA_SOFT_RESET_ASSERT       0xDEAD
+
 #endif /* _SH5_SYSFPGAREG_H */
diff -r fa59044503a1 -r 28cc111a28c2 sys/arch/evbsh5/dev/sysfpgavar.h
--- a/sys/arch/evbsh5/dev/sysfpgavar.h  Sat Oct 05 10:47:51 2002 +0000
+++ b/sys/arch/evbsh5/dev/sysfpgavar.h  Sat Oct 05 10:59:10 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sysfpgavar.h,v 1.4 2002/09/28 11:16:38 scw Exp $       */
+/*     $NetBSD: sysfpgavar.h,v 1.5 2002/10/05 10:59:10 scw Exp $       */
 
 /*
  * Copyright 2002 Wasabi Systems, Inc.
@@ -96,5 +96,6 @@
 extern void *sysfpga_intr_establish(int, int, int, int (*)(void *), void *);
 extern void sysfpga_intr_disestablish(void *);
 extern void sysfpga_nmi_clear(void);
+extern void sysfpga_sreset(void);
 
 #endif /* _SH5_SYSFPGAVAR_H */