Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (116 commits)
  [POWERPC] Add export of vgacon_remap_base
  [POWERPC] Remove bogus comment about page_is_ram
  [POWERPC] windfarm: don't die on suspend thread signal
  [POWERPC] Fix comment in kernel/irq.c
  [POWERPC] ppc: Fix booke watchdog initialization
  [POWERPC] PPC: Use ARRAY_SIZE macro when appropriate
  [POWERPC] Use ARRAY_SIZE macro when appropriate
  [POWERPC] Fix ppc64's writing to struct file_operations
  [POWERPC] ppc: use syslog macro for the printk log level
  [POWERPC] ppc: cs4218_tdm remove extra brace
  [POWERPC] Add mpc52xx/lite5200 PCI support
  [POWERPC] Only use H_BULK_REMOVE if the firmware supports it
  [POWERPC] Fixup error handling when emulating a floating point instruction
  [POWERPC] Enable interrupts if we are doing fp math emulation
  [POWERPC] Added kprobes support to ppc32
  [POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call
  [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace
  [POWERPC] Fix performance monitor exception
  [POWERPC] Compile fixes for arch/powerpc dcr code
  [POWERPC] Maple: use mmio nvram
  ...

4 files changed, 153 insertions, 9 deletions

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 9e43e39..d08bb4e 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -610,6 +610,13 @@ config HVC_RTAS
 	help
 	  IBM Console device driver which makes use of RTAS
 
+config HVC_BEAT
+	bool "Toshiba's Beat Hypervisor Console support"
+	depends on PPC_CELLEB
+	select HVC_DRIVER
+	help
+	  Toshiba's Cell Reference Set Beat Console device driver
+
 config HVCS
 	tristate "IBM Hypervisor Virtual Console Server support"
 	depends on PPC_PSERIES
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index fc11063..0326ca1 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -45,6 +45,7 @@ obj-$(CONFIG_RIO)		+= rio/ generic_serial.o
 obj-$(CONFIG_HVC_CONSOLE)	+= hvc_vio.o hvsi.o
 obj-$(CONFIG_HVC_ISERIES)	+= hvc_iseries.o
 obj-$(CONFIG_HVC_RTAS)		+= hvc_rtas.o
+obj-$(CONFIG_HVC_BEAT)		+= hvc_beat.o
 obj-$(CONFIG_HVC_DRIVER)	+= hvc_console.o
 obj-$(CONFIG_RAW_DRIVER)	+= raw.o
 obj-$(CONFIG_SGI_SNSC)		+= snsc.o snsc_event.o
diff --git a/drivers/char/hvc_beat.c b/drivers/char/hvc_beat.c
new file mode 100644
index 0000000..6f019f1
--- /dev/null
+++ b/drivers/char/hvc_beat.c
@@ -0,0 +1,134 @@
+/*
+ * Beat hypervisor console driver
+ *
+ * (C) Copyright 2006 TOSHIBA CORPORATION
+ *
+ * This code is based on drivers/char/hvc_rtas.c:
+ * (C) Copyright IBM Corporation 2001-2005
+ * (C) Copyright Red Hat, Inc. 2005
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/string.h>
+#include <linux/console.h>
+#include <asm/prom.h>
+#include <asm/hvconsole.h>
+#include <asm/firmware.h>
+
+#include "hvc_console.h"
+
+extern int64_t beat_get_term_char(uint64_t, uint64_t *, uint64_t *, uint64_t *);
+extern int64_t beat_put_term_char(uint64_t, uint64_t, uint64_t, uint64_t);
+
+struct hvc_struct *hvc_beat_dev = NULL;
+
+/* bug: only one queue is available regardless of vtermno */
+static int hvc_beat_get_chars(uint32_t vtermno, char *buf, int cnt)
+{
+	static unsigned char q[sizeof(unsigned long) * 2]
+		__attribute__((aligned(sizeof(unsigned long))));
+	static int qlen = 0;
+	unsigned long got;
+
+again:
+	if (qlen) {
+		if (qlen > cnt) {
+			memcpy(buf, q, cnt);
+			qlen -= cnt;
+			memmove(q + cnt, q, qlen);
+			return cnt;
+		} else {	/* qlen <= cnt */
+			int	r;
+
+			memcpy(buf, q, qlen);
+			r = qlen;
+			qlen = 0;
+			return r;
+		}
+	}
+	if (beat_get_term_char(vtermno, &got,
+		((unsigned long *)q), ((unsigned long *)q) + 1) == 0) {
+		qlen = got;
+		goto again;
+	}
+	return 0;
+}
+
+static int hvc_beat_put_chars(uint32_t vtermno, const char *buf, int cnt)
+{
+	unsigned long kb[2];
+	int rest, nlen;
+
+	for (rest = cnt; rest > 0; rest -= nlen) {
+		nlen = (rest > 16) ? 16 : rest;
+		memcpy(kb, buf, nlen);
+		beat_put_term_char(vtermno, rest, kb[0], kb[1]);
+		rest -= nlen;
+	}
+	return cnt;
+}
+
+static struct hv_ops hvc_beat_get_put_ops = {
+	.get_chars = hvc_beat_get_chars,
+	.put_chars = hvc_beat_put_chars,
+};
+
+static int hvc_beat_useit = 1;
+
+static int hvc_beat_config(char *p)
+{
+	hvc_beat_useit = simple_strtoul(p, NULL, 0);
+	return 0;
+}
+
+static int hvc_beat_console_init(void)
+{
+	if (hvc_beat_useit && machine_is_compatible("Beat")) {
+		hvc_instantiate(0, 0, &hvc_beat_get_put_ops);
+	}
+	return 0;
+}
+
+/* temp */
+static int hvc_beat_init(void)
+{
+	struct hvc_struct *hp;
+
+	if (!firmware_has_feature(FW_FEATURE_BEAT))
+		return -ENODEV;
+
+	hp = hvc_alloc(0, NO_IRQ, &hvc_beat_get_put_ops, 16);
+	if (IS_ERR(hp))
+		return PTR_ERR(hp);
+	hvc_beat_dev = hp;
+	return 0;
+}
+
+static void __exit hvc_beat_exit(void)
+{
+	if (hvc_beat_dev)
+		hvc_remove(hvc_beat_dev);
+}
+
+module_init(hvc_beat_init);
+module_exit(hvc_beat_exit);
+
+__setup("hvc_beat=", hvc_beat_config);
+
+console_initcall(hvc_beat_console_init);
diff --git a/drivers/char/watchdog/booke_wdt.c b/drivers/char/watchdog/booke_wdt.c
index 4889022..0e23f29 100644
--- a/drivers/char/watchdog/booke_wdt.c
+++ b/drivers/char/watchdog/booke_wdt.c
@@ -35,7 +35,7 @@
 #ifdef	CONFIG_FSL_BOOKE
 #define WDT_PERIOD_DEFAULT 63	/* Ex. wdt_period=28 bus=333Mhz , reset=~40sec */
 #else
-#define WDT_PERIOD_DEFAULT 4	/* Refer to the PPC40x and PPC4xx manuals */
+#define WDT_PERIOD_DEFAULT 3	/* Refer to the PPC40x and PPC4xx manuals */
 #endif				/* for timing information */
 
 u32 booke_wdt_enabled = 0;
@@ -48,12 +48,22 @@ u32 booke_wdt_period = WDT_PERIOD_DEFAULT;
 #endif
 
 /*
+ * booke_wdt_ping:
+ */
+static __inline__ void booke_wdt_ping(void)
+{
+	mtspr(SPRN_TSR, TSR_ENW|TSR_WIS);
+}
+
+/*
  * booke_wdt_enable:
  */
 static __inline__ void booke_wdt_enable(void)
 {
 	u32 val;
 
+	/* clear status before enabling watchdog */
+	booke_wdt_ping();
 	val = mfspr(SPRN_TCR);
 	val |= (TCR_WIE|TCR_WRC(WRC_CHIP)|WDTP(booke_wdt_period));
 
@@ -61,14 +71,6 @@ static __inline__ void booke_wdt_enable(void)
 }
 
 /*
- * booke_wdt_ping:
- */
-static __inline__ void booke_wdt_ping(void)
-{
-	mtspr(SPRN_TSR, TSR_ENW|TSR_WIS);
-}
-
-/*
  * booke_wdt_write:
  */
 static ssize_t booke_wdt_write (struct file *file, const char __user *buf,