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

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (61 commits)
  [POWERPC] Use udbg_early_init() on ppc32
  [POWERPC] Open Firmware serial port driver
  [POWERPC] Move MPIC smp routines into mpic.c
  [POWERPC] Cleanup pseries kexec code
  [POWERPC] Cleanup pseries smp initialisation code
  [POWERPC] Consolidate pseries platform header files into pseries.h
  [POWERPC] 85xx: Drop use of SYNC macro in head_fsl_booke.S
  [POWERPC] cell: pm_rtas_activat_signals routine cleanup
  [POWERPC] cell: PPU Oprofile cleanup patch
  [POWERPC] spufs: avoid accessing kernel memory through mmapped /mem node
  [POWERPC] spu sched: static timeslicing for SCHED_RR contexts
  [POWERPC] spu sched: use DECLARE_BITMAP
  [POWERPC] spu sched: forced preemption at execution
  [POWERPC] spu sched: update some comments
  [POWERPC] spu sched: simplity spu_remove_from_active_list
  [POWERPC] spufs: optimize spu_run
  [POWERPC] spufs: runqueue simplification
  [POWERPC] spufs: move prio to spu_context
  [POWERPC] spufs: state_mutex cleanup
  [POWERPC] spufs: simplify state_mutex
  ...

14 files changed, 183 insertions, 33 deletions

diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index d7378df4497..29e1809e5ec 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -484,10 +484,8 @@ mpc52xx_ata_resume(struct of_device *op)
 
 static struct of_device_id mpc52xx_ata_of_match[] = {
 	{
-		.compatible = "mpc5200-ata",
-	},
-	{
-		.compatible = "mpc52xx-ata",
+		.type		= "ata",
+		.compatible	= "mpc5200-ata",
 	},
 	{},
 };
diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c
index 1c7d6f221b5..b77ef5187d6 100644
--- a/drivers/macintosh/adbhid.c
+++ b/drivers/macintosh/adbhid.c
@@ -574,8 +574,8 @@ static struct adb_request led_request;
 static int leds_pending[16];
 static int leds_req_pending;
 static int pending_devs[16];
-static int pending_led_start=0;
-static int pending_led_end=0;
+static int pending_led_start;
+static int pending_led_end;
 static DEFINE_SPINLOCK(leds_lock);
 
 static void leds_done(struct adb_request *req)
diff --git a/drivers/macintosh/apm_emu.c b/drivers/macintosh/apm_emu.c
index a6d50f4fabd..c5e4d43f97f 100644
--- a/drivers/macintosh/apm_emu.c
+++ b/drivers/macintosh/apm_emu.c
@@ -102,7 +102,7 @@ static struct pmu_sleep_notifier apm_sleep_notifier = {
 	SLEEP_LEVEL_USERLAND,
 };
 
-static char			driver_version[] = "0.5";	/* no spaces */
+static const char driver_version[] = "0.5";	/* no spaces */
 
 #ifdef DEBUG
 static char *	apm_event_name[] = {
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index ee6b4ca6913..f632cec9ce4 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -17,10 +17,10 @@
 
 static struct input_dev *emumousebtn;
 static int emumousebtn_input_register(void);
-static int mouse_emulate_buttons = 0;
+static int mouse_emulate_buttons;
 static int mouse_button2_keycode = KEY_RIGHTCTRL;	/* right control key */
 static int mouse_button3_keycode = KEY_RIGHTALT;	/* right option key */
-static int mouse_last_keycode = 0;
+static int mouse_last_keycode;
 
 #if defined(CONFIG_SYSCTL)
 /* file(s) in /proc/sys/dev/mac_hid */
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 3d3bf1643e7..a7ce5592663 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -48,11 +48,11 @@ static u8 FAN_SPD_SET[2] = {0x30, 0x31};
 
 static u8 default_limits_local[3] = {70, 50, 70};    /* local, sensor1, sensor2 */
 static u8 default_limits_chip[3] = {80, 65, 80};    /* local, sensor1, sensor2 */
-static const char *sensor_location[3] = {NULL, NULL, NULL};
+static const char *sensor_location[3];
 
-static int limit_adjust = 0;
+static int limit_adjust;
 static int fan_speed = -1;
-static int verbose = 0;
+static int verbose;
 
 MODULE_AUTHOR("Colin Leroy <colin@colino.net>");
 MODULE_DESCRIPTION("Driver for ADT746x thermostat in iBook G4 and "
diff --git a/drivers/macintosh/via-cuda.c b/drivers/macintosh/via-cuda.c
index df66291b132..3797f503cd6 100644
--- a/drivers/macintosh/via-cuda.c
+++ b/drivers/macintosh/via-cuda.c
@@ -86,7 +86,7 @@ static int data_index;
 #ifdef CONFIG_PPC
 static struct device_node *vias;
 #endif
-static int cuda_fully_inited = 0;
+static int cuda_fully_inited;
 
 #ifdef CONFIG_ADB
 static int cuda_probe(void);
diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c
index 5d88d5b0ad9..175b3e56e37 100644
--- a/drivers/macintosh/via-macii.c
+++ b/drivers/macintosh/via-macii.c
@@ -107,10 +107,10 @@ static enum macii_state {
 	awaiting_reply
 } macii_state;
 
-static int need_poll    = 0;
-static int command_byte = 0;
-static int last_reply   = 0;
-static int last_active  = 0;
+static int need_poll;
+static int command_byte;
+static int last_reply;
+static int last_active;
 
 static struct adb_request *current_req;
 static struct adb_request *last_req;
@@ -124,7 +124,7 @@ static int first_byte;
 static int prefix_len;
 static int status = ST_IDLE|TREQ;
 static int last_status;
-static int driver_running = 0;
+static int driver_running;
 
 /* debug level 10 required for ADB logging (should be && debug_adb, ideally) */
 
diff --git a/drivers/macintosh/via-maciisi.c b/drivers/macintosh/via-maciisi.c
index 1f0aa5dc9aa..10051db48d2 100644
--- a/drivers/macintosh/via-maciisi.c
+++ b/drivers/macintosh/via-maciisi.c
@@ -63,10 +63,10 @@ static volatile unsigned char *via;
 
 #undef DEBUG_MACIISI_ADB
 
-static struct adb_request* current_req = NULL;
-static struct adb_request* last_req = NULL;
+static struct adb_request* current_req;
+static struct adb_request* last_req;
 static unsigned char maciisi_rbuf[16];
-static unsigned char *reply_ptr = NULL;
+static unsigned char *reply_ptr;
 static int data_index;
 static int reading_reply;
 static int reply_len;
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 96bea4b62c4..b6073bdb50c 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -141,13 +141,13 @@ static volatile int adb_int_pending;
 static volatile int disable_poll;
 static struct device_node *vias;
 static int pmu_kind = PMU_UNKNOWN;
-static int pmu_fully_inited = 0;
+static int pmu_fully_inited;
 static int pmu_has_adb;
 static struct device_node *gpio_node;
-static unsigned char __iomem *gpio_reg = NULL;
+static unsigned char __iomem *gpio_reg;
 static int gpio_irq = NO_IRQ;
 static int gpio_irq_enabled = -1;
-static volatile int pmu_suspended = 0;
+static volatile int pmu_suspended;
 static spinlock_t pmu_lock;
 static u8 pmu_intr_mask;
 static int pmu_version;
@@ -169,7 +169,7 @@ static int option_server_mode;
 
 int pmu_battery_count;
 int pmu_cur_battery;
-unsigned int pmu_power_flags;
+unsigned int pmu_power_flags = PMU_PWR_AC_PRESENT;
 struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES];
 static int query_batt_timer = BATTERY_POLLING_COUNT;
 static struct adb_request batt_req;
@@ -180,7 +180,7 @@ int asleep;
 BLOCKING_NOTIFIER_HEAD(sleep_notifier_list);
 
 #ifdef CONFIG_ADB
-static int adb_dev_map = 0;
+static int adb_dev_map;
 static int pmu_adb_flags;
 
 static int pmu_probe(void);
@@ -2776,7 +2776,7 @@ pmu_polled_request(struct adb_request *req)
 
 #if defined(CONFIG_PM) && defined(CONFIG_PPC32)
 
-static int pmu_sys_suspended = 0;
+static int pmu_sys_suspended;
 
 static int pmu_sys_suspend(struct sys_device *sysdev, pm_message_t state)
 {
@@ -2816,7 +2816,6 @@ static struct sysdev_class pmu_sysclass = {
 };
 
 static struct sys_device device_pmu = {
-	.id		= 0,
 	.cls		= &pmu_sysclass,
 };
 
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index 4f5b6fa196c..54baee57d2f 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -96,10 +96,10 @@ static int data_index;
 static int data_len;
 static int adb_int_pending;
 static int pmu_adb_flags;
-static int adb_dev_map = 0;
+static int adb_dev_map;
 static struct adb_request bright_req_1, bright_req_2, bright_req_3;
 static int pmu_kind = PMU_UNKNOWN;
-static int pmu_fully_inited = 0;
+static int pmu_fully_inited;
 
 int asleep;
 BLOCKING_NOTIFIER_HEAD(sleep_notifier_list);
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 5cc6b91f840..d0edbaacb1f 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -999,4 +999,14 @@ config SERIAL_NETX_CONSOLE
 	  If you have enabled the serial port on the Motorola IMX
 	  CPU you can make it the console by answering Y to this option.
 
+config SERIAL_OF_PLATFORM
+	tristate "Serial port on Open Firmware platform bus"
+	depends on PPC_OF
+	depends on SERIAL_8250
+	help
+	  If you have a PowerPC based system that has serial ports
+	  on a platform specific bus, you should enable this option.
+	  Currently, only 8250 compatible ports are supported, but
+	  others can easily be added.
+
 endmenu
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index df3632cd7df..f3f82587b5f 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -58,3 +58,4 @@ obj-$(CONFIG_SERIAL_SGI_IOC3) += ioc3_serial.o
 obj-$(CONFIG_SERIAL_ATMEL) += atmel_serial.o
 obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
 obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
+obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 3c4b6c24371..955bbd653e2 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -127,8 +127,7 @@ static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id);
 
 #if defined(CONFIG_PPC_MERGE)
 static struct of_device_id mpc52xx_uart_of_match[] = {
-	{ .type = "serial", .compatible = "mpc52xx-psc-uart", },
-	{ .type = "serial", .compatible = "mpc5200-psc", }, /* Efika only! */
+	{ .type = "serial", .compatible = "mpc5200-psc-uart", },
 	{},
 };
 #endif
@@ -1068,7 +1067,7 @@ mpc52xx_uart_of_enumerate(void)
 			continue;
 
 		/* Is a particular device number requested? */
-		devno = get_property(np, "device_no", NULL);
+		devno = get_property(np, "port-number", NULL);
 		mpc52xx_uart_of_assign(of_node_get(np), devno ? *devno : -1);
 	}
 
diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
new file mode 100644
index 00000000000..09b0b736a75
--- /dev/null
+++ b/drivers/serial/of_serial.c
@@ -0,0 +1,143 @@
+/*
+ *  Serial Port driver for Open Firmware platform devices
+ *
+ *    Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>, IBM Corp.
+ *
+ *  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.
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+
+#include <asm/of_platform.h>
+#include <asm/prom.h>
+
+/*
+ * Fill a struct uart_port for a given device node
+ */
+static int __devinit of_platform_serial_setup(struct of_device *ofdev,
+					int type, struct uart_port *port)
+{
+	struct resource resource;
+	struct device_node *np = ofdev->node;
+	const unsigned int *clk, *spd;
+	int ret;
+
+	memset(port, 0, sizeof *port);
+	spd = get_property(np, "current-speed", NULL);
+	clk = get_property(np, "clock-frequency", NULL);
+	if (!clk) {
+		dev_warn(&ofdev->dev, "no clock-frequency property set\n");
+		return -ENODEV;
+	}
+
+	ret = of_address_to_resource(np, 0, &resource);
+	if (ret) {
+		dev_warn(&ofdev->dev, "invalid address\n");
+		return ret;
+	}
+
+	spin_lock_init(&port->lock);
+	port->mapbase = resource.start;
+	port->irq = irq_of_parse_and_map(np, 0);
+	port->iotype = UPIO_MEM;
+	port->type = type;
+	port->uartclk = *clk;
+	port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP;
+	port->dev = &ofdev->dev;
+	port->custom_divisor = *clk / (16 * (*spd));
+
+	return 0;
+}
+
+/*
+ * Try to register a serial port
+ */
+static int __devinit of_platform_serial_probe(struct of_device *ofdev,
+						const struct of_device_id *id)
+{
+	struct uart_port port;
+	int port_type;
+	int ret;
+
+	if (of_find_property(ofdev->node, "used-by-rtas", NULL))
+		return -EBUSY;
+
+	port_type = (unsigned long)id->data;
+	ret = of_platform_serial_setup(ofdev, port_type, &port);
+	if (ret)
+		goto out;
+
+	switch (port_type) {
+	case PORT_UNKNOWN:
+		dev_info(&ofdev->dev, "Unknown serial port found, "
+			"attempting to use 8250 driver\n");
+		/* fallthrough */
+	case PORT_8250 ... PORT_MAX_8250:
+		ret = serial8250_register_port(&port);
+		break;
+	default:
+		/* need to add code for these */
+		ret = -ENODEV;
+		break;
+	}
+	if (ret < 0)
+		goto out;
+
+	ofdev->dev.driver_data = (void *)(unsigned long)ret;
+	return 0;
+out:
+	irq_dispose_mapping(port.irq);
+	return ret;
+}
+
+/*
+ * Release a line
+ */
+static int of_platform_serial_remove(struct of_device *ofdev)
+{
+	int line = (unsigned long)ofdev->dev.driver_data;
+	serial8250_unregister_port(line);
+	return 0;
+}
+
+/*
+ * A few common types, add more as needed.
+ */
+static struct of_device_id __devinitdata of_platform_serial_table[] = {
+	{ .type = "serial", .compatible = "ns8250",   .data = (void *)PORT_8250, },
+	{ .type = "serial", .compatible = "ns16450",  .data = (void *)PORT_16450, },
+	{ .type = "serial", .compatible = "ns16550",  .data = (void *)PORT_16550, },
+	{ .type = "serial", .compatible = "ns16750",  .data = (void *)PORT_16750, },
+	{ .type = "serial",			      .data = (void *)PORT_UNKNOWN, },
+	{ /* end of list */ },
+};
+
+static struct of_platform_driver __devinitdata of_platform_serial_driver = {
+	.owner = THIS_MODULE,
+	.name = "of_serial",
+	.probe = of_platform_serial_probe,
+	.remove = of_platform_serial_remove,
+	.match_table = of_platform_serial_table,
+};
+
+static int __init of_platform_serial_init(void)
+{
+	return of_register_platform_driver(&of_platform_serial_driver);
+}
+module_init(of_platform_serial_init);
+
+static void __exit of_platform_serial_exit(void)
+{
+	return of_unregister_platform_driver(&of_platform_serial_driver);
+};
+module_exit(of_platform_serial_exit);
+
+MODULE_AUTHOR("Arnd Bergmann <arnd@arndb.de>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Serial Port driver for Open Firmware platform devices");