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

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (194 commits)
  [POWERPC] Add missing EXPORTS for mpc52xx support
  [POWERPC] Remove obsolete PPC_52xx and update CLASSIC32 comment
  [POWERPC] ps3: add a default zImage target
  [POWERPC] Add of_platform_bus support to mpc52xx psc uart driver
  [POWERPC] typo fix and whitespace cleanup on mpc52xx-uart driver
  [POWERPC] Fix debug printks for 32-bit resources in the PCI code
  [POWERPC] Replace kmalloc+memset with kzalloc
  [POWERPC] Linkstation / kurobox support
  [POWERPC] Add the e300c3 core to the CPU table.
  [POWERPC] ppc: m48t35 add missing bracket
  [POWERPC] iSeries: don't build head_64.o unnecessarily
  [POWERPC] iSeries: stop dt_mod.o being rebuilt unnecessarily
  [POWERPC] Fix cputable.h for combined build
  [POWERPC] Allow CONFIG_BOOTX_TEXT on iSeries
  [POWERPC] Allow xmon to build on legacy iSeries
  [POWERPC] Change ppc64_defconfig to use AUTOFS_V4 not V3
  [POWERPC] Tell firmware we can handle POWER6 compatible mode
  [POWERPC] Clean images in arch/powerpc/boot
  [POWERPC] Fix OF pci flags parsing
  [POWERPC] defconfig for lite5200 board
  ...

21 files changed, 1449 insertions, 120 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index 4ac14dab3079..67711770b1d9 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -77,3 +77,4 @@ obj-$(CONFIG_CRYPTO)		+= crypto/
 obj-$(CONFIG_SUPERH)		+= sh/
 obj-$(CONFIG_GENERIC_TIME)	+= clocksource/
 obj-$(CONFIG_DMA_ENGINE)	+= dma/
+obj-$(CONFIG_PPC_PS3)		+= ps3/
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index ec5a1b90a0a2..e19ba4ebcd4e 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -759,6 +759,8 @@ static struct vio_driver viodasd_driver = {
 	}
 };
 
+static int need_delete_probe;
+
 /*
  * Initialize the whole device driver.  Handle module and non-module
  * versions
@@ -773,46 +775,67 @@ static int __init viodasd_init(void)
 
 	if (viopath_hostLp == HvLpIndexInvalid) {
 		printk(VIOD_KERN_WARNING "invalid hosting partition\n");
-		return -EIO;
+		rc = -EIO;
+		goto early_fail;
 	}
 
 	printk(VIOD_KERN_INFO "vers " VIOD_VERS ", hosting partition %d\n",
 			viopath_hostLp);
 
         /* register the block device */
-	if (register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME)) {
+	rc =  register_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
+	if (rc) {
 		printk(VIOD_KERN_WARNING
 				"Unable to get major number %d for %s\n",
 				VIODASD_MAJOR, VIOD_GENHD_NAME);
-		return -EIO;
+		goto early_fail;
 	}
 	/* Actually open the path to the hosting partition */
-	if (viopath_open(viopath_hostLp, viomajorsubtype_blockio,
-				VIOMAXREQ + 2)) {
+	rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio,
+				VIOMAXREQ + 2);
+	if (rc) {
 		printk(VIOD_KERN_WARNING
 		       "error opening path to host partition %d\n",
 		       viopath_hostLp);
-		unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
-		return -EIO;
+		goto unregister_blk;
 	}
 
 	/* Initialize our request handler */
 	vio_setHandler(viomajorsubtype_blockio, handle_block_event);
 
 	rc = vio_register_driver(&viodasd_driver);
-	if (rc == 0)
-		driver_create_file(&viodasd_driver.driver, &driver_attr_probe);
+	if (rc) {
+		printk(VIOD_KERN_WARNING "vio_register_driver failed\n");
+		goto unset_handler;
+	}
+
+	/*
+	 * If this call fails, it just means that we cannot dynamically
+	 * add virtual disks, but the driver will still work fine for
+	 * all existing disk, so ignore the failure.
+	 */
+	if (!driver_create_file(&viodasd_driver.driver, &driver_attr_probe))
+		need_delete_probe = 1;
+
+	return 0;
+
+unset_handler:
+	vio_clearHandler(viomajorsubtype_blockio);
+	viopath_close(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2);
+unregister_blk:
+	unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
+early_fail:
 	return rc;
 }
 module_init(viodasd_init);
 
-void viodasd_exit(void)
+void __exit viodasd_exit(void)
 {
-	driver_remove_file(&viodasd_driver.driver, &driver_attr_probe);
+	if (need_delete_probe)
+		driver_remove_file(&viodasd_driver.driver, &driver_attr_probe);
 	vio_unregister_driver(&viodasd_driver);
 	vio_clearHandler(viomajorsubtype_blockio);
-	unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
 	viopath_close(viopath_hostLp, viomajorsubtype_blockio, VIOMAXREQ + 2);
+	unregister_blkdev(VIODASD_MAJOR, VIOD_GENHD_NAME);
 }
-
 module_exit(viodasd_exit);
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index 2af634d7acf4..eb7ab112c050 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -35,7 +35,7 @@
 #include <linux/ide.h>
 #include <asm/io.h>
 
-#ifdef CONFIG_PPC_MULTIPLATFORM
+#ifdef CONFIG_PPC_CHRP
 #include <asm/processor.h>
 #endif
 
@@ -442,7 +442,7 @@ static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
 	hwif->speedproc = &via_set_drive;
 
 
-#if defined(CONFIG_PPC_CHRP) && defined(CONFIG_PPC32)
+#ifdef CONFIG_PPC_CHRP
 	if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) {
 		hwif->irq = hwif->channel ? 15 : 14;
 	}
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index 7f8477d3a661..92ccee85e2a2 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -228,4 +228,11 @@ config ANSLCD
 	tristate "Support for ANS LCD display"
 	depends on ADB_CUDA && PPC_PMAC
 
+config PMAC_RACKMETER
+	tristate "Support for Apple XServe front panel LEDs"
+	depends on PPC_PMAC
+	help
+	  This driver procides some support to control the front panel
+          blue LEDs "vu-meter" of the XServer macs.
+
 endmenu
diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index b53d45f87b0b..2dfc3f4eaf42 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -42,3 +42,4 @@ obj-$(CONFIG_WINDFARM_PM112)	+= windfarm_pm112.o windfarm_smu_sat.o \
 				   windfarm_smu_sensors.o \
 				   windfarm_max6690_sensor.o \
 				   windfarm_lm75_sensor.o windfarm_pid.o
+obj-$(CONFIG_PMAC_RACKMETER)	+= rack-meter.o
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
new file mode 100644
index 000000000000..f1b6f563673a
--- /dev/null
+++ b/drivers/macintosh/rack-meter.c
@@ -0,0 +1,612 @@
+/*
+ * RackMac vu-meter driver
+ *
+ * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
+ *                    <benh@kernel.crashing.org>
+ *
+ * Released under the term of the GNU GPL v2.
+ *
+ * Support the CPU-meter LEDs of the Xserve G5
+ *
+ * TODO: Implement PWM to do variable intensity and provide userland
+ * interface for fun. Also, the CPU-meter could be made nicer by being
+ * a bit less "immediate" but giving instead a more average load over
+ * time. Patches welcome :-)
+ *
+ */
+#undef DEBUG
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/kernel_stat.h>
+
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+#include <asm/pmac_feature.h>
+#include <asm/dbdma.h>
+#include <asm/dbdma.h>
+#include <asm/macio.h>
+#include <asm/keylargo.h>
+
+/* Number of samples in a sample buffer */
+#define SAMPLE_COUNT		256
+
+/* CPU meter sampling rate in ms */
+#define CPU_SAMPLING_RATE	250
+
+struct rackmeter_dma {
+	struct dbdma_cmd	cmd[4]			____cacheline_aligned;
+	u32			mark			____cacheline_aligned;
+	u32			buf1[SAMPLE_COUNT]	____cacheline_aligned;
+	u32			buf2[SAMPLE_COUNT]	____cacheline_aligned;
+} ____cacheline_aligned;
+
+struct rackmeter_cpu {
+	struct work_struct	sniffer;
+	cputime64_t		prev_wall;
+	cputime64_t		prev_idle;
+	int			zero;
+} ____cacheline_aligned;
+
+struct rackmeter {
+	struct macio_dev		*mdev;
+	unsigned int			irq;
+	struct device_node		*i2s;
+	u8				*ubuf;
+	struct dbdma_regs __iomem	*dma_regs;
+	void __iomem			*i2s_regs;
+	dma_addr_t			dma_buf_p;
+	struct rackmeter_dma		*dma_buf_v;
+	int				stale_irq;
+	struct rackmeter_cpu		cpu[2];
+	int				paused;
+	struct mutex			sem;
+};
+
+/* To be set as a tunable */
+static int rackmeter_ignore_nice;
+
+/* This GPIO is whacked by the OS X driver when initializing */
+#define RACKMETER_MAGIC_GPIO	0x78
+
+/* This is copied from cpufreq_ondemand, maybe we should put it in
+ * a common header somewhere
+ */
+static inline cputime64_t get_cpu_idle_time(unsigned int cpu)
+{
+	cputime64_t retval;
+
+	retval = cputime64_add(kstat_cpu(cpu).cpustat.idle,
+			kstat_cpu(cpu).cpustat.iowait);
+
+	if (rackmeter_ignore_nice)
+		retval = cputime64_add(retval, kstat_cpu(cpu).cpustat.nice);
+
+	return retval;
+}
+
+static void rackmeter_setup_i2s(struct rackmeter *rm)
+{
+	struct macio_chip *macio = rm->mdev->bus->chip;
+
+	/* First whack magic GPIO */
+	pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, RACKMETER_MAGIC_GPIO, 5);
+
+
+	/* Call feature code to enable the sound channel and the proper
+	 * clock sources
+	 */
+	pmac_call_feature(PMAC_FTR_SOUND_CHIP_ENABLE, rm->i2s, 0, 1);
+
+	/* Power i2s and stop i2s clock. We whack MacIO FCRs directly for now.
+	 * This is a bit racy, thus we should add new platform functions to
+	 * handle that. snd-aoa needs that too
+	 */
+	MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_ENABLE);
+	MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT);
+	(void)MACIO_IN32(KEYLARGO_FCR1);
+	udelay(10);
+
+	/* Then setup i2s. For now, we use the same magic value that
+	 * the OS X driver seems to use. We might want to play around
+	 * with the clock divisors later
+	 */
+	out_le32(rm->i2s_regs + 0x10, 0x01fa0000);
+	(void)in_le32(rm->i2s_regs + 0x10);
+	udelay(10);
+
+	/* Fully restart i2s*/
+	MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE |
+		  KL1_I2S0_CLK_ENABLE_BIT);
+	(void)MACIO_IN32(KEYLARGO_FCR1);
+	udelay(10);
+}
+
+static void rackmeter_set_default_pattern(struct rackmeter *rm)
+{
+	int i;
+
+	for (i = 0; i < 16; i++) {
+		if (i < 8)
+			rm->ubuf[i] = (i & 1) * 255;
+		else
+			rm->ubuf[i] = ((~i) & 1) * 255;
+	}
+}
+
+static void rackmeter_do_pause(struct rackmeter *rm, int pause)
+{
+	struct rackmeter_dma *rdma = rm->dma_buf_v;
+
+	pr_debug("rackmeter: %s\n", pause ? "paused" : "started");
+
+	rm->paused = pause;
+	if (pause) {
+		DBDMA_DO_STOP(rm->dma_regs);
+		return;
+	}
+	memset(rdma->buf1, 0, SAMPLE_COUNT & sizeof(u32));
+	memset(rdma->buf2, 0, SAMPLE_COUNT & sizeof(u32));
+
+	rm->dma_buf_v->mark = 0;
+
+	mb();
+	out_le32(&rm->dma_regs->cmdptr_hi, 0);
+	out_le32(&rm->dma_regs->cmdptr, rm->dma_buf_p);
+	out_le32(&rm->dma_regs->control, (RUN << 16) | RUN);
+}
+
+static void rackmeter_setup_dbdma(struct rackmeter *rm)
+{
+	struct rackmeter_dma *db = rm->dma_buf_v;
+	struct dbdma_cmd *cmd = db->cmd;
+
+	/* Make sure dbdma is reset */
+	DBDMA_DO_RESET(rm->dma_regs);
+
+	pr_debug("rackmeter: mark offset=0x%lx\n",
+		 offsetof(struct rackmeter_dma, mark));
+	pr_debug("rackmeter: buf1 offset=0x%lx\n",
+		 offsetof(struct rackmeter_dma, buf1));
+	pr_debug("rackmeter: buf2 offset=0x%lx\n",
+		 offsetof(struct rackmeter_dma, buf2));
+
+	/* Prepare 4 dbdma commands for the 2 buffers */
+	memset(cmd, 0, 4 * sizeof(struct dbdma_cmd));
+	st_le16(&cmd->req_count, 4);
+	st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
+	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+		offsetof(struct rackmeter_dma, mark));
+	st_le32(&cmd->cmd_dep, 0x02000000);
+	cmd++;
+
+	st_le16(&cmd->req_count, SAMPLE_COUNT * 4);
+	st_le16(&cmd->command, OUTPUT_MORE);
+	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+		offsetof(struct rackmeter_dma, buf1));
+	cmd++;
+
+	st_le16(&cmd->req_count, 4);
+	st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
+	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+		offsetof(struct rackmeter_dma, mark));
+	st_le32(&cmd->cmd_dep, 0x01000000);
+	cmd++;
+
+	st_le16(&cmd->req_count, SAMPLE_COUNT * 4);
+	st_le16(&cmd->command, OUTPUT_MORE | BR_ALWAYS);
+	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+		offsetof(struct rackmeter_dma, buf2));
+	st_le32(&cmd->cmd_dep, rm->dma_buf_p);
+
+	rackmeter_do_pause(rm, 0);
+}
+
+static void rackmeter_do_timer(void *data)
+{
+	struct rackmeter *rm = data;
+	unsigned int cpu = smp_processor_id();
+	struct rackmeter_cpu *rcpu = &rm->cpu[cpu];
+	cputime64_t cur_jiffies, total_idle_ticks;
+	unsigned int total_ticks, idle_ticks;
+	int i, offset, load, cumm, pause;
+
+	cur_jiffies = jiffies64_to_cputime64(get_jiffies_64());
+	total_ticks = (unsigned int)cputime64_sub(cur_jiffies,
+						  rcpu->prev_wall);
+	rcpu->prev_wall = cur_jiffies;
+
+	total_idle_ticks = get_cpu_idle_time(cpu);
+	idle_ticks = (unsigned int) cputime64_sub(total_idle_ticks,
+				rcpu->prev_idle);
+	rcpu->prev_idle = total_idle_ticks;
+
+	/* We do a very dumb calculation to update the LEDs for now,
+	 * we'll do better once we have actual PWM implemented
+	 */
+	load = (9 * (total_ticks - idle_ticks)) / total_ticks;
+
+	offset = cpu << 3;
+	cumm = 0;
+	for (i = 0; i < 8; i++) {
+		u8 ub = (load > i) ? 0xff : 0;
+		rm->ubuf[i + offset] = ub;
+		cumm |= ub;
+	}
+	rcpu->zero = (cumm == 0);
+
+	/* Now check if LEDs are all 0, we can stop DMA */
+	pause = (rm->cpu[0].zero && rm->cpu[1].zero);
+	if (pause != rm->paused) {
+		mutex_lock(&rm->sem);
+		pause = (rm->cpu[0].zero && rm->cpu[1].zero);
+		rackmeter_do_pause(rm, pause);
+		mutex_unlock(&rm->sem);
+	}
+	schedule_delayed_work_on(cpu, &rcpu->sniffer,
+				 msecs_to_jiffies(CPU_SAMPLING_RATE));
+}
+
+static void __devinit rackmeter_init_cpu_sniffer(struct rackmeter *rm)
+{
+	unsigned int cpu;
+
+	/* This driver works only with 1 or 2 CPUs numbered 0 and 1,
+	 * but that's really all we have on Apple Xserve. It doesn't
+	 * play very nice with CPU hotplug neither but we don't do that
+	 * on those machines yet
+	 */
+
+	INIT_WORK(&rm->cpu[0].sniffer, rackmeter_do_timer, rm);
+	INIT_WORK(&rm->cpu[1].sniffer, rackmeter_do_timer, rm);
+
+	for_each_online_cpu(cpu) {
+		struct rackmeter_cpu *rcpu;
+
+		if (cpu > 1)
+			continue;
+		rcpu = &rm->cpu[cpu];;
+		rcpu->prev_idle = get_cpu_idle_time(cpu);
+		rcpu->prev_wall = jiffies64_to_cputime64(get_jiffies_64());
+		schedule_delayed_work_on(cpu, &rm->cpu[cpu].sniffer,
+					 msecs_to_jiffies(CPU_SAMPLING_RATE));
+	}
+}
+
+static void __devexit rackmeter_stop_cpu_sniffer(struct rackmeter *rm)
+{
+	cancel_rearming_delayed_work(&rm->cpu[0].sniffer);
+	cancel_rearming_delayed_work(&rm->cpu[1].sniffer);
+}
+
+static int rackmeter_setup(struct rackmeter *rm)
+{
+	pr_debug("rackmeter: setting up i2s..\n");
+	rackmeter_setup_i2s(rm);
+
+	pr_debug("rackmeter: setting up default pattern..\n");
+	rackmeter_set_default_pattern(rm);
+
+	pr_debug("rackmeter: setting up dbdma..\n");
+	rackmeter_setup_dbdma(rm);
+
+	pr_debug("rackmeter: start CPU measurements..\n");
+	rackmeter_init_cpu_sniffer(rm);
+
+	printk(KERN_INFO "RackMeter initialized\n");
+
+	return 0;
+}
+
+/*  XXX FIXME: No PWM yet, this is 0/1 */
+static u32 rackmeter_calc_sample(struct rackmeter *rm, unsigned int index)
+{
+	int led;
+	u32 sample = 0;
+
+	for (led = 0; led < 16; led++) {
+		sample >>= 1;
+		sample |= ((rm->ubuf[led] >= 0x80) << 15);
+	}
+	return (sample << 17) | (sample >> 15);
+}
+
+static irqreturn_t rackmeter_irq(int irq, void *arg)
+{
+	struct rackmeter *rm = arg;
+	struct rackmeter_dma *db = rm->dma_buf_v;
+	unsigned int mark, i;
+	u32 *buf;
+
+	/* Flush PCI buffers with an MMIO read. Maybe we could actually
+	 * check the status one day ... in case things go wrong, though
+	 * this never happened to me
+	 */
+	(void)in_le32(&rm->dma_regs->status);
+
+	/* Make sure the CPU gets us in order */
+	rmb();
+
+	/* Read mark */
+	mark = db->mark;
+	if (mark != 1 && mark != 2) {
+		printk(KERN_WARNING "rackmeter: Incorrect DMA mark 0x%08x\n",
+		       mark);
+		/* We allow for 3 errors like that (stale DBDMA irqs) */
+		if (++rm->stale_irq > 3) {
+			printk(KERN_ERR "rackmeter: Too many errors,"
+			       " stopping DMA\n");
+			DBDMA_DO_RESET(rm->dma_regs);
+		}
+		return IRQ_HANDLED;
+	}
+
+	/* Next buffer we need to fill is mark value */
+	buf = mark == 1 ? db->buf1 : db->buf2;
+
+	/* Fill it now. This routine converts the 8 bits depth sample array
+	 * into the PWM bitmap for each LED.
+	 */
+	for (i = 0; i < SAMPLE_COUNT; i++)
+		buf[i] = rackmeter_calc_sample(rm, i);
+
+
+	return IRQ_HANDLED;
+}
+
+static int __devinit rackmeter_probe(struct macio_dev* mdev,
+				     const struct of_device_id *match)
+{
+	struct device_node *i2s = NULL, *np = NULL;
+	struct rackmeter *rm = NULL;
+	struct resource ri2s, rdma;
+	int rc = -ENODEV;
+
+	pr_debug("rackmeter_probe()\n");
+
+	/* Get i2s-a node */
+	while ((i2s = of_get_next_child(mdev->ofdev.node, i2s)) != NULL)
+	       if (strcmp(i2s->name, "i2s-a") == 0)
+		       break;
+	if (i2s == NULL) {
+		pr_debug("  i2s-a child not found\n");
+		goto bail;
+	}
+	/* Get lightshow or virtual sound */
+	while ((np = of_get_next_child(i2s, np)) != NULL) {
+	       if (strcmp(np->name, "lightshow") == 0)
+		       break;
+	       if ((strcmp(np->name, "sound") == 0) &&
+		   get_property(np, "virtual", NULL) != NULL)
+		       break;
+	}
+	if (np == NULL) {
+		pr_debug("  lightshow or sound+virtual child not found\n");
+		goto bail;
+	}
+
+	/* Create and initialize our instance data */
+	rm = kzalloc(sizeof(struct rackmeter), GFP_KERNEL);
+	if (rm == NULL) {
+		printk(KERN_ERR "rackmeter: failed to allocate memory !\n");
+		rc = -ENOMEM;
+		goto bail_release;
+	}
+	rm->mdev = mdev;
+	rm->i2s = i2s;
+	mutex_init(&rm->sem);
+	dev_set_drvdata(&mdev->ofdev.dev, rm);
+	/* Check resources availability. We need at least resource 0 and 1 */
+#if 0 /* Use that when i2s-a is finally an mdev per-se */
+	if (macio_resource_count(mdev) < 2 || macio_irq_count(mdev) < 2) {
+		printk(KERN_ERR
+		       "rackmeter: found match but lacks resources: %s"
+		       " (%d resources, %d interrupts)\n",
+		       mdev->ofdev.node->full_name);
+		rc = -ENXIO;
+		goto bail_free;
+	}
+	if (macio_request_resources(mdev, "rackmeter")) {
+		printk(KERN_ERR
+		       "rackmeter: failed to request resources: %s\n",
+		       mdev->ofdev.node->full_name);
+		rc = -EBUSY;
+		goto bail_free;
+	}
+	rm->irq = macio_irq(mdev, 1);
+#else
+	rm->irq = irq_of_parse_and_map(i2s, 1);
+	if (rm->irq == NO_IRQ ||
+	    of_address_to_resource(i2s, 0, &ri2s) ||
+	    of_address_to_resource(i2s, 1, &rdma)) {
+		printk(KERN_ERR
+		       "rackmeter: found match but lacks resources: %s",
+		       mdev->ofdev.node->full_name);
+		rc = -ENXIO;
+		goto bail_free;
+	}
+#endif
+
+	pr_debug("  i2s @0x%08x\n", (unsigned int)ri2s.start);
+	pr_debug("  dma @0x%08x\n", (unsigned int)rdma.start);
+	pr_debug("  irq %d\n", rm->irq);
+
+	rm->ubuf = (u8 *)__get_free_page(GFP_KERNEL);
+	if (rm->ubuf == NULL) {
+		printk(KERN_ERR
+		       "rackmeter: failed to allocate samples page !\n");
+		rc = -ENOMEM;
+		goto bail_release;
+	}
+
+	rm->dma_buf_v = dma_alloc_coherent(&macio_get_pci_dev(mdev)->dev,
+					   sizeof(struct rackmeter_dma),
+					   &rm->dma_buf_p, GFP_KERNEL);
+	if (rm->dma_buf_v == NULL) {
+		printk(KERN_ERR
+		       "rackmeter: failed to allocate dma buffer !\n");
+		rc = -ENOMEM;
+		goto bail_free_samples;
+	}
+#if 0
+	rm->i2s_regs = ioremap(macio_resource_start(mdev, 0), 0x1000);
+#else
+	rm->i2s_regs = ioremap(ri2s.start, 0x1000);
+#endif
+	if (rm->i2s_regs == NULL) {
+		printk(KERN_ERR
+		       "rackmeter: failed to map i2s registers !\n");
+		rc = -ENXIO;
+		goto bail_free_dma;
+	}
+#if 0
+	rm->dma_regs = ioremap(macio_resource_start(mdev, 1), 0x100);
+#else
+	rm->dma_regs = ioremap(rdma.start, 0x100);
+#endif
+	if (rm->dma_regs == NULL) {
+		printk(KERN_ERR
+		       "rackmeter: failed to map dma registers !\n");
+		rc = -ENXIO;
+		goto bail_unmap_i2s;
+	}
+
+	rc = rackmeter_setup(rm);
+	if (rc) {
+		printk(KERN_ERR
+		       "rackmeter: failed to initialize !\n");
+		rc = -ENXIO;
+		goto bail_unmap_dma;
+	}
+
+	rc = request_irq(rm->irq, rackmeter_irq, 0, "rackmeter", rm);
+	if (rc != 0) {
+		printk(KERN_ERR
+		       "rackmeter: failed to request interrupt !\n");
+		goto bail_stop_dma;
+	}
+	of_node_put(np);
+	return 0;
+
+ bail_stop_dma:
+	DBDMA_DO_RESET(rm->dma_regs);
+ bail_unmap_dma:
+	iounmap(rm->dma_regs);
+ bail_unmap_i2s:
+	iounmap(rm->i2s_regs);
+ bail_free_dma:
+	dma_free_coherent(&macio_get_pci_dev(mdev)->dev,
+			  sizeof(struct rackmeter_dma),
+			  rm->dma_buf_v, rm->dma_buf_p);
+ bail_free_samples:
+	free_page((unsigned long)rm->ubuf);
+ bail_release:
+#if 0
+	macio_release_resources(mdev);
+#endif
+ bail_free:
+	kfree(rm);
+ bail:
+	of_node_put(i2s);
+	of_node_put(np);
+	dev_set_drvdata(&mdev->ofdev.dev, NULL);
+	return rc;
+}
+
+static int __devexit rackmeter_remove(struct macio_dev* mdev)
+{
+	struct rackmeter *rm = dev_get_drvdata(&mdev->ofdev.dev);
+
+	/* Stop CPU sniffer timer & work queues */
+	rackmeter_stop_cpu_sniffer(rm);
+
+	/* Clear reference to private data */
+	dev_set_drvdata(&mdev->ofdev.dev, NULL);
+
+	/* Stop/reset dbdma */
+	DBDMA_DO_RESET(rm->dma_regs);
+
+	/* Release the IRQ */
+	free_irq(rm->irq, rm);
+
+	/* Unmap registers */
+	iounmap(rm->dma_regs);
+	iounmap(rm->i2s_regs);
+
+	/* Free DMA */
+	dma_free_coherent(&macio_get_pci_dev(mdev)->dev,
+			  sizeof(struct rackmeter_dma),
+			  rm->dma_buf_v, rm->dma_buf_p);
+
+	/* Free samples */
+	free_page((unsigned long)rm->ubuf);
+
+#if 0
+	/* Release resources */
+	macio_release_resources(mdev);
+#endif
+
+	/* Get rid of me */
+	kfree(rm);
+
+	return 0;
+}
+
+static int rackmeter_shutdown(struct macio_dev* mdev)
+{
+	struct rackmeter *rm = dev_get_drvdata(&mdev->ofdev.dev);
+
+	if (rm == NULL)
+		return -ENODEV;
+
+	/* Stop CPU sniffer timer & work queues */
+	rackmeter_stop_cpu_sniffer(rm);
+
+	/* Stop/reset dbdma */
+	DBDMA_DO_RESET(rm->dma_regs);
+
+	return 0;
+}
+
+static struct of_device_id rackmeter_match[] = {
+	{ .name = "i2s" },
+	{ }
+};
+
+static struct macio_driver rackmeter_drv = {
+	.name = "rackmeter",
+	.owner = THIS_MODULE,
+	.match_table = rackmeter_match,
+	.probe = rackmeter_probe,
+	.remove = rackmeter_remove,
+	.shutdown = rackmeter_shutdown,
+};
+
+
+static int __init rackmeter_init(void)
+{
+	pr_debug("rackmeter_init()\n");
+
+	return macio_register_driver(&rackmeter_drv);
+}
+
+static void __exit rackmeter_exit(void)
+{
+	pr_debug("rackmeter_exit()\n");
+
+	macio_unregister_driver(&rackmeter_drv);
+}
+
+module_init(rackmeter_init);
+module_exit(rackmeter_exit);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
+MODULE_DESCRIPTION("RackMeter: Support vu-meter on XServe front panel");
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index ade25b3fbb35..4f724cdd2efa 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -46,6 +46,7 @@
 #include <asm/abs_addr.h>
 #include <asm/uaccess.h>
 #include <asm/of_device.h>
+#include <asm/of_platform.h>
 
 #define VERSION "0.7"
 #define AUTHOR  "(c) 2005 Benjamin Herrenschmidt, IBM Corp."
@@ -653,7 +654,7 @@ static int __init smu_init_sysfs(void)
 	 * I'm a bit too far from figuring out how that works with those
 	 * new chipsets, but that will come back and bite us
 	 */
-	of_register_driver(&smu_of_platform_driver);
+	of_register_platform_driver(&smu_of_platform_driver);
 	return 0;
 }
 
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index a0f30d0853ea..13b953ae8ebc 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -30,7 +30,7 @@
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/sections.h>
-#include <asm/of_device.h>
+#include <asm/of_platform.h>
 
 #undef DEBUG
 
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index d00c0c37a12e..2e4ad44a8636 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -129,6 +129,7 @@
 #include <asm/sections.h>
 #include <asm/of_device.h>
 #include <asm/macio.h>
+#include <asm/of_platform.h>
 
 #include "therm_pm72.h"
 
@@ -2236,14 +2237,14 @@ static int __init therm_pm72_init(void)
 		return -ENODEV;
 	}
 
-	of_register_driver(&fcu_of_platform_driver);
+	of_register_platform_driver(&fcu_of_platform_driver);
 	
 	return 0;
 }
 
 static void __exit therm_pm72_exit(void)
 {
-	of_unregister_driver(&fcu_of_platform_driver);
+	of_unregister_platform_driver(&fcu_of_platform_driver);
 
 	if (of_dev)
 		of_device_unregister(of_dev);
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index 738faab1b22c..a1d3a987cb3a 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -36,12 +36,13 @@
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/sections.h>
-#include <asm/of_device.h>
+#include <asm/of_platform.h>
 #include <asm/macio.h>
 
 #define LOG_TEMP		0			/* continously log temperature */
@@ -511,14 +512,14 @@ g4fan_init( void )
 		return -ENODEV;
 	}
 
-	of_register_driver( &therm_of_driver );
+	of_register_platform_driver( &therm_of_driver );
 	return 0;
 }
 
 static void __exit
 g4fan_exit( void )
 {
-	of_unregister_driver( &therm_of_driver );
+	of_unregister_platform_driver( &therm_of_driver );
 
 	if( x.of_dev )
 		of_device_unregister( x.of_dev );
diff --git a/drivers/net/ibm_emac/ibm_emac_mal.h b/drivers/net/ibm_emac/ibm_emac_mal.h
index f73f10a0a562..407d2acbf7c7 100644
--- a/drivers/net/ibm_emac/ibm_emac_mal.h
+++ b/drivers/net/ibm_emac/ibm_emac_mal.h
@@ -24,6 +24,7 @@
 #include <linux/netdevice.h>
 
 #include <asm/io.h>
+#include <asm/dcr.h>
 
 /*
  * These MAL "versions" probably aren't the real versions IBM uses for these 
@@ -191,6 +192,7 @@ struct mal_commac {
 
 struct ibm_ocp_mal {
 	int			dcrbase;
+	dcr_host_t		dcrhost;
 
 	struct list_head	poll_list;
 	struct net_device	poll_dev;
@@ -207,12 +209,12 @@ struct ibm_ocp_mal {
 
 static inline u32 get_mal_dcrn(struct ibm_ocp_mal *mal, int reg)
 {
-	return mfdcr(mal->dcrbase + reg);
+	return dcr_read(mal->dcrhost, mal->dcrbase + reg);
 }
 
 static inline void set_mal_dcrn(struct ibm_ocp_mal *mal, int reg, u32 val)
 {
-	mtdcr(mal->dcrbase + reg, val);
+	dcr_write(mal->dcrhost, mal->dcrbase + reg, val);
 }
 
 /* Register MAL devices */
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 44c9f993dcc4..99343b5836b8 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -50,7 +50,6 @@
 #include <asm/semaphore.h>
 #include <asm/hvcall.h>
 #include <asm/atomic.h>
-#include <asm/iommu.h>
 #include <asm/vio.h>
 #include <asm/uaccess.h>
 #include <linux/seq_file.h>
@@ -1000,8 +999,6 @@ static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_
 	adapter->mac_addr = 0;
 	memcpy(&adapter->mac_addr, mac_addr_p, 6);
 
-	adapter->liobn = dev->iommu_table->it_index;
-
 	netdev->irq = dev->irq;
 	netdev->open               = ibmveth_open;
 	netdev->poll               = ibmveth_poll;
@@ -1115,7 +1112,6 @@ static int ibmveth_seq_show(struct seq_file *seq, void *v)
 	seq_printf(seq, "%s %s\n\n", ibmveth_driver_string, ibmveth_driver_version);
 
 	seq_printf(seq, "Unit Address:    0x%x\n", adapter->vdev->unit_address);
-	seq_printf(seq, "LIOBN:           0x%lx\n", adapter->liobn);
 	seq_printf(seq, "Current MAC:     %02X:%02X:%02X:%02X:%02X:%02X\n",
 		   current_mac[0], current_mac[1], current_mac[2],
 		   current_mac[3], current_mac[4], current_mac[5]);
diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index f5b25bff1540..bb69ccae8ace 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -118,7 +118,6 @@ struct ibmveth_adapter {
     struct net_device_stats stats;
     unsigned int mcastFilterSize;
     unsigned long mac_addr;
-    unsigned long liobn;
     void * buffer_list_addr;
     void * filter_list_addr;
     dma_addr_t buffer_list_dma;
diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed.c
index f14e99276dba..096d4a100bf2 100644
--- a/drivers/net/phy/fixed.c
+++ b/drivers/net/phy/fixed.c
@@ -254,7 +254,7 @@ static int fixed_mdio_register_device(int number, int speed, int duplex)
 		goto device_create_fail;
 	}
 
-	phydev->irq = -1;
+	phydev->irq = PHY_IGNORE_INTERRUPT;
 	phydev->dev.bus = &mdio_bus_type;
 
 	if(number)
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index cef7e6671c49..13e0a43e423b 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -88,12 +88,11 @@ MODULE_DEVICE_TABLE(pci, spider_net_pci_tbl);
 static inline u32
 spider_net_read_reg(struct spider_net_card *card, u32 reg)
 {
-	u32 value;
-
-	value = readl(card->regs + reg);
-	value = le32_to_cpu(value);
-
-	return value;
+	/* We use the powerpc specific variants instead of readl_be() because
+	 * we know spidernet is not a real PCI device and we can thus avoid the
+	 * performance hit caused by the PCI workarounds.
+	 */
+	return in_be32(card->regs + reg);
 }
 
 /**
@@ -105,8 +104,11 @@ spider_net_read_reg(struct spider_net_card *card, u32 reg)
 static inline void
 spider_net_write_reg(struct spider_net_card *card, u32 reg, u32 value)
 {
-	value = cpu_to_le32(value);
-	writel(value, card->regs + reg);
+	/* We use the powerpc specific variants instead of writel_be() because
+	 * we know spidernet is not a real PCI device and we can thus avoid the
+	 * performance hit caused by the PCI workarounds.
+	 */
+	out_be32(card->regs + reg, value);
 }
 
 /** spider_net_write_phy - write to phy register
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index 3f4b6408b755..4b3cd3d8b62a 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -473,9 +473,9 @@
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
 #include <asm/uaccess.h>
-#ifdef CONFIG_PPC_MULTIPLATFORM
+#ifdef CONFIG_PPC_PMAC
 #include <asm/machdep.h>
-#endif /* CONFIG_PPC_MULTIPLATFORM */
+#endif /* CONFIG_PPC_PMAC */
 
 #include "de4x5.h"
 
@@ -4151,7 +4151,7 @@ get_hw_addr(struct net_device *dev)
     /* If possible, try to fix a broken card - SMC only so far */
     srom_repair(dev, broken);
 
-#ifdef CONFIG_PPC_MULTIPLATFORM
+#ifdef CONFIG_PPC_PMAC
     /*
     ** If the address starts with 00 a0, we have to bit-reverse
     ** each byte of the address.
@@ -4168,7 +4168,7 @@ get_hw_addr(struct net_device *dev)
 		    dev->dev_addr[i] = ((x & 0x55) << 1) + ((x & 0xaa) >> 1);
 	    }
     }
-#endif /* CONFIG_PPC_MULTIPLATFORM */
+#endif /* CONFIG_PPC_PMAC */
 
     /* Test for a bad enet address */
     status = test_bad_enet(dev, status);
diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile
new file mode 100644
index 000000000000..b52d547b7a78
--- /dev/null
+++ b/drivers/ps3/Makefile
@@ -0,0 +1 @@
+obj-y += system-bus.o
diff --git a/drivers/ps3/system-bus.c b/drivers/ps3/system-bus.c
new file mode 100644
index 000000000000..d79f949bcb2a
--- /dev/null
+++ b/drivers/ps3/system-bus.c
@@ -0,0 +1,362 @@
+/*
+ *  PS3 system bus driver.
+ *
+ *  Copyright (C) 2006 Sony Computer Entertainment Inc.
+ *  Copyright 2006 Sony 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; version 2 of the License.
+ *
+ *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+
+#include <asm/udbg.h>
+#include <asm/ps3.h>
+#include <asm/lv1call.h>
+#include <asm/firmware.h>
+
+#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__)
+static void _dump_mmio_region(const struct ps3_mmio_region* r,
+	const char* func, int line)
+{
+	pr_debug("%s:%d: dev       %u:%u\n", func, line, r->did.bus_id,
+		r->did.dev_id);
+	pr_debug("%s:%d: bus_addr  %lxh\n", func, line, r->bus_addr);
+	pr_debug("%s:%d: len       %lxh\n", func, line, r->len);
+	pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr);
+}
+
+int ps3_mmio_region_create(struct ps3_mmio_region *r)
+{
+	int result;
+
+	result = lv1_map_device_mmio_region(r->did.bus_id, r->did.dev_id,
+		r->bus_addr, r->len, r->page_size, &r->lpar_addr);
+
+	if (result) {
+		pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		r->lpar_addr = r->len = r->bus_addr = 0;
+	}
+
+	dump_mmio_region(r);
+	return result;
+}
+
+int ps3_free_mmio_region(struct ps3_mmio_region *r)
+{
+	int result;
+
+	result = lv1_unmap_device_mmio_region(r->did.bus_id, r->did.dev_id,
+		r->bus_addr);
+
+	if (result)
+		pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+
+	r->lpar_addr = r->len = r->bus_addr = 0;
+	return result;
+}
+
+static int ps3_system_bus_match(struct device *_dev,
+	struct device_driver *_drv)
+{
+	int result;
+	struct ps3_system_bus_driver *drv = to_ps3_system_bus_driver(_drv);
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+
+	result = dev->match_id == drv->match_id;
+
+	pr_info("%s:%d: dev=%u(%s), drv=%u(%s): %s\n", __func__, __LINE__,
+		dev->match_id, dev->core.bus_id, drv->match_id, drv->core.name,
+		(result ? "match" : "miss"));
+	return result;
+}
+
+static int ps3_system_bus_probe(struct device *_dev)
+{
+	int result;
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+	struct ps3_system_bus_driver *drv =
+		to_ps3_system_bus_driver(_dev->driver);
+
+	result = lv1_open_device(dev->did.bus_id, dev->did.dev_id, 0);
+
+	if (result) {
+		pr_debug("%s:%d: lv1_open_device failed (%d)\n",
+			__func__, __LINE__, result);
+		result = -EACCES;
+		goto clean_none;
+	}
+
+	if (dev->d_region->did.bus_id) {
+		result = ps3_dma_region_create(dev->d_region);
+
+		if (result) {
+			pr_debug("%s:%d: ps3_dma_region_create failed (%d)\n",
+				__func__, __LINE__, result);
+			BUG_ON("check region type");
+			result = -EINVAL;
+			goto clean_device;
+		}
+	}
+
+	BUG_ON(!drv);
+
+	if (drv->probe)
+		result = drv->probe(dev);
+	else
+		pr_info("%s:%d: %s no probe method\n", __func__, __LINE__,
+			dev->core.bus_id);
+
+	if (result) {
+		pr_debug("%s:%d: drv->probe failed\n", __func__, __LINE__);
+		goto clean_dma;
+	}
+
+	return result;
+
+clean_dma:
+	ps3_dma_region_free(dev->d_region);
+clean_device:
+	lv1_close_device(dev->did.bus_id, dev->did.dev_id);
+clean_none:
+	return result;
+}
+
+static int ps3_system_bus_remove(struct device *_dev)
+{
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+	struct ps3_system_bus_driver *drv =
+		to_ps3_system_bus_driver(_dev->driver);
+
+	if (drv->remove)
+		drv->remove(dev);
+	else
+		pr_info("%s:%d: %s no remove method\n", __func__, __LINE__,
+			dev->core.bus_id);
+
+	ps3_dma_region_free(dev->d_region);
+	ps3_free_mmio_region(dev->m_region);
+	lv1_close_device(dev->did.bus_id, dev->did.dev_id);
+
+	return 0;
+}
+
+struct bus_type ps3_system_bus_type = {
+        .name = "ps3_system_bus",
+	.match = ps3_system_bus_match,
+	.probe = ps3_system_bus_probe,
+	.remove = ps3_system_bus_remove,
+};
+
+int __init ps3_system_bus_init(void)
+{
+	int result;
+
+	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
+		return 0;
+
+	result = bus_register(&ps3_system_bus_type);
+	BUG_ON(result);
+	return result;
+}
+
+core_initcall(ps3_system_bus_init);
+
+/* Allocates a contiguous real buffer and creates mappings over it.
+ * Returns the virtual address of the buffer and sets dma_handle
+ * to the dma address (mapping) of the first page.
+ */
+
+static void * ps3_alloc_coherent(struct device *_dev, size_t size,
+	dma_addr_t *dma_handle, gfp_t flag)
+{
+	int result;
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+	unsigned long virt_addr;
+
+	BUG_ON(!dev->d_region->bus_addr);
+
+	flag &= ~(__GFP_DMA | __GFP_HIGHMEM);
+	flag |= __GFP_ZERO;
+
+	virt_addr = __get_free_pages(flag, get_order(size));
+
+	if (!virt_addr) {
+		pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__);
+		goto clean_none;
+	}
+
+	result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle);
+
+	if (result) {
+		pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
+			__func__, __LINE__, result);
+		BUG_ON("check region type");
+		goto clean_alloc;
+	}
+
+	return (void*)virt_addr;
+
+clean_alloc:
+	free_pages(virt_addr, get_order(size));
+clean_none:
+	dma_handle = NULL;
+	return NULL;
+}
+
+static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
+	dma_addr_t dma_handle)
+{
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+
+	ps3_dma_unmap(dev->d_region, dma_handle, size);
+	free_pages((unsigned long)vaddr, get_order(size));
+}
+
+/* Creates TCEs for a user provided buffer.  The user buffer must be
+ * contiguous real kernel storage (not vmalloc).  The address of the buffer
+ * passed here is the kernel (virtual) address of the buffer.  The buffer
+ * need not be page aligned, the dma_addr_t returned will point to the same
+ * byte within the page as vaddr.
+ */
+
+static dma_addr_t ps3_map_single(struct device *_dev, void *ptr, size_t size,
+	enum dma_data_direction direction)
+{
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+	int result;
+	unsigned long bus_addr;
+
+	result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
+		&bus_addr);
+
+	if (result) {
+		pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
+			__func__, __LINE__, result);
+	}
+
+	return bus_addr;
+}
+
+static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
+	size_t size, enum dma_data_direction direction)
+{
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+	int result;
+
+	result = ps3_dma_unmap(dev->d_region, dma_addr, size);
+
+	if (result) {
+		pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n",
+			__func__, __LINE__, result);
+	}
+}
+
+static int ps3_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
+	enum dma_data_direction direction)
+{
+#if defined(CONFIG_PS3_DYNAMIC_DMA)
+	BUG_ON("do");
+#endif
+	return 0;
+}
+
+static void ps3_unmap_sg(struct device *_dev, struct scatterlist *sg,
+	int nents, enum dma_data_direction direction)
+{
+#if defined(CONFIG_PS3_DYNAMIC_DMA)
+	BUG_ON("do");
+#endif
+}
+
+static int ps3_dma_supported(struct device *_dev, u64 mask)
+{
+	return 1;
+}
+
+static struct dma_mapping_ops ps3_dma_ops = {
+	.alloc_coherent = ps3_alloc_coherent,
+	.free_coherent = ps3_free_coherent,
+	.map_single = ps3_map_single,
+	.unmap_single = ps3_unmap_single,
+	.map_sg = ps3_map_sg,
+	.unmap_sg = ps3_unmap_sg,
+	.dma_supported = ps3_dma_supported
+};
+
+/**
+ * ps3_system_bus_release_device - remove a device from the system bus
+ */
+
+static void ps3_system_bus_release_device(struct device *_dev)
+{
+	struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+	kfree(dev);
+}
+
+/**
+ * ps3_system_bus_device_register - add a device to the system bus
+ *
+ * ps3_system_bus_device_register() expects the dev object to be allocated
+ * dynamically by the caller.  The system bus takes ownership of the dev
+ * object and frees the object in ps3_system_bus_release_device().
+ */
+
+int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
+{
+	int result;
+	static unsigned int dev_count = 1;
+
+	dev->core.parent = NULL;
+	dev->core.bus = &ps3_system_bus_type;
+	dev->core.release = ps3_system_bus_release_device;
+
+	dev->core.archdata.of_node = NULL;
+	dev->core.archdata.dma_ops = &ps3_dma_ops;
+	dev->core.archdata.numa_node = 0;
+
+	snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), "sb_%02x",
+		dev_count++);
+
+	pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id);
+
+	result = device_register(&dev->core);
+	return result;
+}
+
+EXPORT_SYMBOL_GPL(ps3_system_bus_device_register);
+
+int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv)
+{
+	int result;
+
+	drv->core.bus = &ps3_system_bus_type;
+
+	result = driver_register(&drv->core);
+	return result;
+}
+
+EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register);
+
+void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv)
+{
+	driver_unregister(&drv->core);
+}
+
+EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister);
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index b691d3e14754..787a8f134677 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -282,7 +282,7 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 }
 
 /* Setup any dynamic params in the uart desc */
-int cpm_uart_init_portdesc(void)
+int __init cpm_uart_init_portdesc(void)
 {
 #if defined(CONFIG_SERIAL_CPM_SMC1) || defined(CONFIG_SERIAL_CPM_SMC2)
 	u32 addr;
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 4f80c5b4a753..6dd579ed9777 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -1,6 +1,4 @@
 /*
- * drivers/serial/mpc52xx_uart.c
- *
  * Driver for the PSC of the Freescale MPC52xx PSCs configured as UARTs.
  *
  * FIXME According to the usermanual the status bits in the status register
@@ -14,18 +12,20 @@
  *
  *
  * Maintainer : Sylvain Munaut <tnt@246tNt.com>
- * 
+ *
  * Some of the code has been inspired/copied from the 2.4 code written
  * by Dale Farnsworth <dfarnsworth@mvista.com>.
- * 
- * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com>
+ *
+ * Copyright (C) 2006 Secret Lab Technologies Ltd.
+ *                    Grant Likely <grant.likely@secretlab.ca>
+ * Copyright (C) 2004-2006 Sylvain Munaut <tnt@246tNt.com>
  * Copyright (C) 2003 MontaVista, Software, Inc.
- * 
+ *
  * This file is licensed under the terms of the GNU General Public License
  * version 2. This program is licensed "as is" without any warranty of any
  * kind, whether express or implied.
  */
- 
+
 /* Platform device Usage :
  *
  * Since PSCs can have multiple function, the correct driver for each one
@@ -44,7 +44,24 @@
  * will be mapped to.
  */
 
-#include <linux/platform_device.h>
+/* OF Platform device Usage :
+ *
+ * This driver is only used for PSCs configured in uart mode.  The device
+ * tree will have a node for each PSC in uart mode w/ device_type = "serial"
+ * and "mpc52xx-psc-uart" in the compatible string
+ *
+ * By default, PSC devices are enumerated in the order they are found.  However
+ * a particular PSC number can be forces by adding 'device_no = <port#>'
+ * to the device node.
+ *
+ * The driver init all necessary registers to place the PSC in uart mode without
+ * DCD. However, the pin multiplexing aren't changed and should be set either
+ * by the bootloader or in the platform init code.
+ */
+
+#undef DEBUG
+
+#include <linux/device.h>
 #include <linux/module.h>
 #include <linux/tty.h>
 #include <linux/serial.h>
@@ -54,6 +71,12 @@
 #include <asm/delay.h>
 #include <asm/io.h>
 
+#if defined(CONFIG_PPC_MERGE)
+#include <asm/of_platform.h>
+#else
+#include <linux/platform_device.h>
+#endif
+
 #include <asm/mpc52xx.h>
 #include <asm/mpc52xx_psc.h>
 
@@ -80,6 +103,12 @@ static struct uart_port mpc52xx_uart_ports[MPC52xx_PSC_MAXNUM];
 	 *        it's cleared, then a memset(...,0,...) should be added to
 	 *        the console_init
 	 */
+#if defined(CONFIG_PPC_MERGE)
+/* lookup table for matching device nodes to index numbers */
+static struct device_node *mpc52xx_uart_nodes[MPC52xx_PSC_MAXNUM];
+
+static void mpc52xx_uart_of_enumerate(void);
+#endif
 
 #define PSC(port) ((struct mpc52xx_psc __iomem *)((port)->membase))
 
@@ -96,32 +125,40 @@ static irqreturn_t mpc52xx_uart_int(int irq,void *dev_id);
 #define uart_console(port)	(0)
 #endif
 
+#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! */
+	{},
+};
+#endif
+
 
 /* ======================================================================== */
 /* UART operations                                                          */
 /* ======================================================================== */
 
-static unsigned int 
+static unsigned int
 mpc52xx_uart_tx_empty(struct uart_port *port)
 {
 	int status = in_be16(&PSC(port)->mpc52xx_psc_status);
 	return (status & MPC52xx_PSC_SR_TXEMP) ? TIOCSER_TEMT : 0;
 }
 
-static void 
+static void
 mpc52xx_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
 	/* Not implemented */
 }
 
-static unsigned int 
+static unsigned int
 mpc52xx_uart_get_mctrl(struct uart_port *port)
 {
 	/* Not implemented */
 	return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
 }
 
-static void 
+static void
 mpc52xx_uart_stop_tx(struct uart_port *port)
 {
 	/* port->lock taken by caller */
@@ -129,7 +166,7 @@ mpc52xx_uart_stop_tx(struct uart_port *port)
 	out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
 }
 
-static void 
+static void
 mpc52xx_uart_start_tx(struct uart_port *port)
 {
 	/* port->lock taken by caller */
@@ -137,12 +174,12 @@ mpc52xx_uart_start_tx(struct uart_port *port)
 	out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
 }
 
-static void 
+static void
 mpc52xx_uart_send_xchar(struct uart_port *port, char ch)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&port->lock, flags);
-	
+
 	port->x_char = ch;
 	if (ch) {
 		/* Make sure tx interrupts are on */
@@ -150,7 +187,7 @@ mpc52xx_uart_send_xchar(struct uart_port *port, char ch)
 		port->read_status_mask |= MPC52xx_PSC_IMR_TXRDY;
 		out_be16(&PSC(port)->mpc52xx_psc_imr,port->read_status_mask);
 	}
-	
+
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -178,7 +215,7 @@ mpc52xx_uart_break_ctl(struct uart_port *port, int ctl)
 		out_8(&PSC(port)->command,MPC52xx_PSC_START_BRK);
 	else
 		out_8(&PSC(port)->command,MPC52xx_PSC_STOP_BRK);
-	
+
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -197,11 +234,11 @@ mpc52xx_uart_startup(struct uart_port *port)
 	/* Reset/activate the port, clear and enable interrupts */
 	out_8(&psc->command,MPC52xx_PSC_RST_RX);
 	out_8(&psc->command,MPC52xx_PSC_RST_TX);
-	
+
 	out_be32(&psc->sicr,0);	/* UART mode DCD ignored */
 
 	out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00); /* /16 prescaler on */
-	
+
 	out_8(&psc->rfcntl, 0x00);
 	out_be16(&psc->rfalarm, 0x1ff);
 	out_8(&psc->tfcntl, 0x07);
@@ -209,10 +246,10 @@ mpc52xx_uart_startup(struct uart_port *port)
 
 	port->read_status_mask |= MPC52xx_PSC_IMR_RXRDY | MPC52xx_PSC_IMR_TXRDY;
 	out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask);
-	
+
 	out_8(&psc->command,MPC52xx_PSC_TX_ENABLE);
 	out_8(&psc->command,MPC52xx_PSC_RX_ENABLE);
-		
+
 	return 0;
 }
 
@@ -220,19 +257,19 @@ static void
 mpc52xx_uart_shutdown(struct uart_port *port)
 {
 	struct mpc52xx_psc __iomem *psc = PSC(port);
-	
+
 	/* Shut down the port, interrupt and all */
 	out_8(&psc->command,MPC52xx_PSC_RST_RX);
 	out_8(&psc->command,MPC52xx_PSC_RST_TX);
-	
-	port->read_status_mask = 0; 
+
+	port->read_status_mask = 0;
 	out_be16(&psc->mpc52xx_psc_imr,port->read_status_mask);
 
 	/* Release interrupt */
 	free_irq(port->irq, port);
 }
 
-static void 
+static void
 mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
                          struct termios *old)
 {
@@ -241,10 +278,10 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
 	unsigned char mr1, mr2;
 	unsigned short ctr;
 	unsigned int j, baud, quot;
-	
+
 	/* Prepare what we're gonna write */
 	mr1 = 0;
-	
+
 	switch (new->c_cflag & CSIZE) {
 		case CS5:	mr1 |= MPC52xx_PSC_MODE_5_BITS;
 				break;
@@ -261,8 +298,8 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
 			MPC52xx_PSC_MODE_PARODD : MPC52xx_PSC_MODE_PAREVEN;
 	} else
 		mr1 |= MPC52xx_PSC_MODE_PARNONE;
-	
-	
+
+
 	mr2 = 0;
 
 	if (new->c_cflag & CSTOPB)
@@ -276,7 +313,7 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
 	baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16);
 	quot = uart_get_divisor(port, baud);
 	ctr = quot & 0xffff;
-	
+
 	/* Get the lock */
 	spin_lock_irqsave(&port->lock, flags);
 
@@ -290,14 +327,14 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
 	 * boot for the console, all stuff is not yet ready to receive at that
 	 * time and that just makes the kernel oops */
 	/* while (j-- && mpc52xx_uart_int_rx_chars(port)); */
-	while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && 
+	while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) &&
 	       --j)
 		udelay(1);
 
 	if (!j)
 		printk(	KERN_ERR "mpc52xx_uart.c: "
 			"Unable to flush RX & TX fifos in-time in set_termios."
-			"Some chars may have been lost.\n" ); 
+			"Some chars may have been lost.\n" );
 
 	/* Reset the TX & RX */
 	out_8(&psc->command,MPC52xx_PSC_RST_RX);
@@ -309,7 +346,7 @@ mpc52xx_uart_set_termios(struct uart_port *port, struct termios *new,
 	out_8(&psc->mode,mr2);
 	out_8(&psc->ctur,ctr >> 8);
 	out_8(&psc->ctlr,ctr & 0xff);
-	
+
 	/* Reenable TX & RX */
 	out_8(&psc->command,MPC52xx_PSC_TX_ENABLE);
 	out_8(&psc->command,MPC52xx_PSC_RX_ENABLE);
@@ -332,7 +369,7 @@ mpc52xx_uart_release_port(struct uart_port *port)
 		port->membase = NULL;
 	}
 
-	release_mem_region(port->mapbase, MPC52xx_PSC_SIZE);
+	release_mem_region(port->mapbase, sizeof(struct mpc52xx_psc));
 }
 
 static int
@@ -341,12 +378,13 @@ mpc52xx_uart_request_port(struct uart_port *port)
 	int err;
 
 	if (port->flags & UPF_IOREMAP) /* Need to remap ? */
-		port->membase = ioremap(port->mapbase, MPC52xx_PSC_SIZE);
+		port->membase = ioremap(port->mapbase,
+		                        sizeof(struct mpc52xx_psc));
 
 	if (!port->membase)
 		return -EINVAL;
 
-	err = request_mem_region(port->mapbase, MPC52xx_PSC_SIZE,
+	err = request_mem_region(port->mapbase, sizeof(struct mpc52xx_psc),
 			"mpc52xx_psc_uart") != NULL ? 0 : -EBUSY;
 
 	if (err && (port->flags & UPF_IOREMAP)) {
@@ -373,7 +411,7 @@ mpc52xx_uart_verify_port(struct uart_port *port, struct serial_struct *ser)
 
 	if ( (ser->irq != port->irq) ||
 	     (ser->io_type != SERIAL_IO_MEM) ||
-	     (ser->baud_base != port->uartclk)  || 
+	     (ser->baud_base != port->uartclk)  ||
 	     (ser->iomem_base != (void*)port->mapbase) ||
 	     (ser->hub6 != 0 ) )
 		return -EINVAL;
@@ -404,11 +442,11 @@ static struct uart_ops mpc52xx_uart_ops = {
 	.verify_port	= mpc52xx_uart_verify_port
 };
 
-	
+
 /* ======================================================================== */
 /* Interrupt handling                                                       */
 /* ======================================================================== */
-	
+
 static inline int
 mpc52xx_uart_int_rx_chars(struct uart_port *port)
 {
@@ -435,11 +473,11 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port)
 
 		flag = TTY_NORMAL;
 		port->icount.rx++;
-	
+
 		if ( status & (MPC52xx_PSC_SR_PE |
 		               MPC52xx_PSC_SR_FE |
 		               MPC52xx_PSC_SR_RB) ) {
-			
+
 			if (status & MPC52xx_PSC_SR_RB) {
 				flag = TTY_BREAK;
 				uart_handle_break(port);
@@ -464,7 +502,7 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port)
 	}
 
 	tty_flip_buffer_push(tty);
-	
+
 	return in_be16(&PSC(port)->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY;
 }
 
@@ -509,25 +547,25 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port)
 	return 1;
 }
 
-static irqreturn_t 
+static irqreturn_t
 mpc52xx_uart_int(int irq, void *dev_id)
 {
 	struct uart_port *port = dev_id;
 	unsigned long pass = ISR_PASS_LIMIT;
 	unsigned int keepgoing;
 	unsigned short status;
-	
+
 	spin_lock(&port->lock);
-	
+
 	/* While we have stuff to do, we continue */
 	do {
 		/* If we don't find anything to do, we stop */
-		keepgoing = 0; 
-		
+		keepgoing = 0;
+
 		/* Read status */
 		status = in_be16(&PSC(port)->mpc52xx_psc_isr);
 		status &= port->read_status_mask;
-			
+
 		/* Do we need to receive chars ? */
 		/* For this RX interrupts must be on and some chars waiting */
 		if ( status & MPC52xx_PSC_IMR_RXRDY )
@@ -537,15 +575,15 @@ mpc52xx_uart_int(int irq, void *dev_id)
 		/* For this, TX must be ready and TX interrupt enabled */
 		if ( status & MPC52xx_PSC_IMR_TXRDY )
 			keepgoing |= mpc52xx_uart_int_tx_chars(port);
-		
+
 		/* Limit number of iteration */
 		if ( !(--pass) )
 			keepgoing = 0;
 
 	} while (keepgoing);
-	
+
 	spin_unlock(&port->lock);
-	
+
 	return IRQ_HANDLED;
 }
 
@@ -563,13 +601,18 @@ mpc52xx_console_get_options(struct uart_port *port,
 	struct mpc52xx_psc __iomem *psc = PSC(port);
 	unsigned char mr1;
 
+	pr_debug("mpc52xx_console_get_options(port=%p)\n", port);
+
 	/* Read the mode registers */
 	out_8(&psc->command,MPC52xx_PSC_SEL_MODE_REG_1);
 	mr1 = in_8(&psc->mode);
-	
+
 	/* CT{U,L}R are write-only ! */
-	*baud = __res.bi_baudrate ?
-		__res.bi_baudrate : CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD;
+	*baud = CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD;
+#if !defined(CONFIG_PPC_MERGE)
+	if (__res.bi_baudrate)
+		*baud = __res.bi_baudrate;
+#endif
 
 	/* Parse them */
 	switch (mr1 & MPC52xx_PSC_MODE_BITS_MASK) {
@@ -579,26 +622,26 @@ mpc52xx_console_get_options(struct uart_port *port,
 		case MPC52xx_PSC_MODE_8_BITS:
 		default:			*bits = 8;
 	}
-	
+
 	if (mr1 & MPC52xx_PSC_MODE_PARNONE)
 		*parity = 'n';
 	else
 		*parity = mr1 & MPC52xx_PSC_MODE_PARODD ? 'o' : 'e';
 }
 
-static void  
+static void
 mpc52xx_console_write(struct console *co, const char *s, unsigned int count)
 {
 	struct uart_port *port = &mpc52xx_uart_ports[co->index];
 	struct mpc52xx_psc __iomem *psc = PSC(port);
 	unsigned int i, j;
-	
+
 	/* Disable interrupts */
 	out_be16(&psc->mpc52xx_psc_imr, 0);
 
 	/* Wait the TX buffer to be empty */
-	j = 5000000;	/* Maximum wait */	
-	while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) && 
+	j = 5000000;	/* Maximum wait */
+	while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP) &&
 	       --j)
 		udelay(1);
 
@@ -607,13 +650,13 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count)
 		/* Line return handling */
 		if (*s == '\n')
 			out_8(&psc->mpc52xx_psc_buffer_8, '\r');
-		
+
 		/* Send the char */
 		out_8(&psc->mpc52xx_psc_buffer_8, *s);
 
 		/* Wait the TX buffer to be empty */
-		j = 20000;	/* Maximum wait */	
-		while (!(in_be16(&psc->mpc52xx_psc_status) & 
+		j = 20000;	/* Maximum wait */
+		while (!(in_be16(&psc->mpc52xx_psc_status) &
 		         MPC52xx_PSC_SR_TXEMP) && --j)
 			udelay(1);
 	}
@@ -622,6 +665,7 @@ mpc52xx_console_write(struct console *co, const char *s, unsigned int count)
 	out_be16(&psc->mpc52xx_psc_imr, port->read_status_mask);
 }
 
+#if !defined(CONFIG_PPC_MERGE)
 static int __init
 mpc52xx_console_setup(struct console *co, char *options)
 {
@@ -634,7 +678,7 @@ mpc52xx_console_setup(struct console *co, char *options)
 
 	if (co->index < 0 || co->index >= MPC52xx_PSC_MAXNUM)
 		return -EINVAL;
-	
+
 	/* Basic port init. Needed since we use some uart_??? func before
 	 * real init for early access */
 	spin_lock_init(&port->lock);
@@ -656,6 +700,78 @@ mpc52xx_console_setup(struct console *co, char *options)
 	return uart_set_options(port, co, baud, parity, bits, flow);
 }
 
+#else
+
+static int __init
+mpc52xx_console_setup(struct console *co, char *options)
+{
+	struct uart_port *port = &mpc52xx_uart_ports[co->index];
+	struct device_node *np = mpc52xx_uart_nodes[co->index];
+	unsigned int ipb_freq;
+	struct resource res;
+	int ret;
+
+	int baud = CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD;
+	int bits = 8;
+	int parity = 'n';
+	int flow = 'n';
+
+	pr_debug("mpc52xx_console_setup co=%p, co->index=%i, options=%s\n",
+		 co, co->index, options);
+
+	if ((co->index < 0) || (co->index > MPC52xx_PSC_MAXNUM)) {
+		pr_debug("PSC%x out of range\n", co->index);
+		return -EINVAL;
+	}
+
+	if (!np) {
+		pr_debug("PSC%x not found in device tree\n", co->index);
+		return -EINVAL;
+	}
+
+	pr_debug("Console on ttyPSC%x is %s\n",
+	         co->index, mpc52xx_uart_nodes[co->index]->full_name);
+
+	/* Fetch register locations */
+	if ((ret = of_address_to_resource(np, 0, &res)) != 0) {
+		pr_debug("Could not get resources for PSC%x\n", co->index);
+		return ret;
+	}
+
+	/* Search for bus-frequency property in this node or a parent */
+	if ((ipb_freq = mpc52xx_find_ipb_freq(np)) == 0) {
+		pr_debug("Could not find IPB bus frequency!\n");
+		return -EINVAL;
+	}
+
+	/* Basic port init. Needed since we use some uart_??? func before
+	 * real init for early access */
+	spin_lock_init(&port->lock);
+	port->uartclk	= ipb_freq / 2;
+	port->ops	= &mpc52xx_uart_ops;
+	port->mapbase = res.start;
+	port->membase = ioremap(res.start, sizeof(struct mpc52xx_psc));
+	port->irq = irq_of_parse_and_map(np, 0);
+
+	if (port->membase == NULL)
+		return -EINVAL;
+
+	pr_debug("mpc52xx-psc uart at %lx, mapped to %p, irq=%x, freq=%i\n",
+	         port->mapbase, port->membase, port->irq, port->uartclk);
+
+	/* Setup the port parameters accoding to options */
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+	else
+		mpc52xx_console_get_options(port, &baud, &parity, &bits, &flow);
+
+	pr_debug("Setting console parameters: %i %i%c1 flow=%c\n",
+	         baud, bits, parity, flow);
+
+	return uart_set_options(port, co, baud, parity, bits, flow);
+}
+#endif /* defined(CONFIG_PPC_MERGE) */
+
 
 static struct uart_driver mpc52xx_uart_driver;
 
@@ -669,10 +785,11 @@ static struct console mpc52xx_console = {
 	.data	= &mpc52xx_uart_driver,
 };
 
-	
-static int __init 
+
+static int __init
 mpc52xx_console_init(void)
 {
+	mpc52xx_uart_of_enumerate();
 	register_console(&mpc52xx_console);
 	return 0;
 }
@@ -700,6 +817,7 @@ static struct uart_driver mpc52xx_uart_driver = {
 };
 
 
+#if !defined(CONFIG_PPC_MERGE)
 /* ======================================================================== */
 /* Platform Driver                                                          */
 /* ======================================================================== */
@@ -723,8 +841,6 @@ mpc52xx_uart_probe(struct platform_device *dev)
 	/* Init the port structure */
 	port = &mpc52xx_uart_ports[idx];
 
-	memset(port, 0x00, sizeof(struct uart_port));
-
 	spin_lock_init(&port->lock);
 	port->uartclk	= __res.bi_ipbfreq / 2; /* Look at CTLR doc */
 	port->fifosize	= 512;
@@ -733,6 +849,7 @@ mpc52xx_uart_probe(struct platform_device *dev)
 			  ( uart_console(port) ? 0 : UPF_IOREMAP );
 	port->line	= idx;
 	port->ops	= &mpc52xx_uart_ops;
+	port->dev	= &dev->dev;
 
 	/* Search for IRQ and mapbase */
 	for (i=0 ; i<dev->num_resources ; i++, res++) {
@@ -771,7 +888,7 @@ mpc52xx_uart_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct uart_port *port = (struct uart_port *) platform_get_drvdata(dev);
 
-	if (sport)
+	if (port)
 		uart_suspend_port(&mpc52xx_uart_driver, port);
 
 	return 0;
@@ -789,6 +906,7 @@ mpc52xx_uart_resume(struct platform_device *dev)
 }
 #endif
 
+
 static struct platform_driver mpc52xx_uart_platform_driver = {
 	.probe		= mpc52xx_uart_probe,
 	.remove		= mpc52xx_uart_remove,
@@ -800,6 +918,184 @@ static struct platform_driver mpc52xx_uart_platform_driver = {
 		.name	= "mpc52xx-psc",
 	},
 };
+#endif /* !defined(CONFIG_PPC_MERGE) */
+
+
+#if defined(CONFIG_PPC_MERGE)
+/* ======================================================================== */
+/* OF Platform Driver                                                       */
+/* ======================================================================== */
+
+static int __devinit
+mpc52xx_uart_of_probe(struct of_device *op, const struct of_device_id *match)
+{
+	int idx = -1;
+	unsigned int ipb_freq;
+	struct uart_port *port = NULL;
+	struct resource res;
+	int ret;
+
+	dev_dbg(&op->dev, "mpc52xx_uart_probe(op=%p, match=%p)\n", op, match);
+
+	/* Check validity & presence */
+	for (idx = 0; idx < MPC52xx_PSC_MAXNUM; idx++)
+		if (mpc52xx_uart_nodes[idx] == op->node)
+			break;
+	if (idx >= MPC52xx_PSC_MAXNUM)
+		return -EINVAL;
+	pr_debug("Found %s assigned to ttyPSC%x\n",
+	         mpc52xx_uart_nodes[idx]->full_name, idx);
+
+	/* Search for bus-frequency property in this node or a parent */
+	if ((ipb_freq = mpc52xx_find_ipb_freq(op->node)) == 0) {
+		dev_dbg(&op->dev, "Could not find IPB bus frequency!\n");
+		return -EINVAL;
+	}
+
+	/* Init the port structure */
+	port = &mpc52xx_uart_ports[idx];
+
+	spin_lock_init(&port->lock);
+	port->uartclk	= ipb_freq / 2;
+	port->fifosize	= 512;
+	port->iotype	= UPIO_MEM;
+	port->flags	= UPF_BOOT_AUTOCONF |
+			  ( uart_console(port) ? 0 : UPF_IOREMAP );
+	port->line	= idx;
+	port->ops	= &mpc52xx_uart_ops;
+	port->dev	= &op->dev;
+
+	/* Search for IRQ and mapbase */
+	if ((ret = of_address_to_resource(op->node, 0, &res)) != 0)
+		return ret;
+
+	port->mapbase = res.start;
+	port->irq = irq_of_parse_and_map(op->node, 0);
+
+	dev_dbg(&op->dev, "mpc52xx-psc uart at %lx, irq=%x, freq=%i\n",
+	        port->mapbase, port->irq, port->uartclk);
+
+	if ((port->irq==NO_IRQ) || !port->mapbase) {
+		printk(KERN_ERR "Could not allocate resources for PSC\n");
+		return -EINVAL;
+	}
+
+	/* Add the port to the uart sub-system */
+	ret = uart_add_one_port(&mpc52xx_uart_driver, port);
+	if (!ret)
+		dev_set_drvdata(&op->dev, (void*)port);
+
+	return ret;
+}
+
+static int
+mpc52xx_uart_of_remove(struct of_device *op)
+{
+	struct uart_port *port = dev_get_drvdata(&op->dev);
+	dev_set_drvdata(&op->dev, NULL);
+
+	if (port)
+		uart_remove_one_port(&mpc52xx_uart_driver, port);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int
+mpc52xx_uart_of_suspend(struct of_device *op, pm_message_t state)
+{
+	struct uart_port *port = (struct uart_port *) dev_get_drvdata(&op->dev);
+
+	if (port)
+		uart_suspend_port(&mpc52xx_uart_driver, port);
+
+	return 0;
+}
+
+static int
+mpc52xx_uart_of_resume(struct of_device *op)
+{
+	struct uart_port *port = (struct uart_port *) dev_get_drvdata(&op->dev);
+
+	if (port)
+		uart_resume_port(&mpc52xx_uart_driver, port);
+
+	return 0;
+}
+#endif
+
+static void
+mpc52xx_uart_of_assign(struct device_node *np, int idx)
+{
+	int free_idx = -1;
+	int i;
+
+	/* Find the first free node */
+	for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) {
+		if (mpc52xx_uart_nodes[i] == NULL) {
+			free_idx = i;
+			break;
+		}
+	}
+
+	if ((idx < 0) || (idx >= MPC52xx_PSC_MAXNUM))
+		idx = free_idx;
+
+	if (idx < 0)
+		return; /* No free slot; abort */
+
+	/* If the slot is already occupied, then swap slots */
+	if (mpc52xx_uart_nodes[idx] && (free_idx != -1))
+		mpc52xx_uart_nodes[free_idx] = mpc52xx_uart_nodes[idx];
+	mpc52xx_uart_nodes[i] = np;
+}
+
+static void
+mpc52xx_uart_of_enumerate(void)
+{
+	static int enum_done = 0;
+	struct device_node *np;
+	const unsigned int *devno;
+	int i;
+
+	if (enum_done)
+		return;
+
+	for_each_node_by_type(np, "serial") {
+		if (!of_match_node(mpc52xx_uart_of_match, np))
+			continue;
+
+		/* Is a particular device number requested? */
+		devno = get_property(np, "device_no", NULL);
+		mpc52xx_uart_of_assign(of_node_get(np), devno ? *devno : -1);
+	}
+
+	enum_done = 1;
+
+	for (i = 0; i < MPC52xx_PSC_MAXNUM; i++) {
+		if (mpc52xx_uart_nodes[i])
+			pr_debug("%s assigned to ttyPSC%x\n",
+			         mpc52xx_uart_nodes[i]->full_name, i);
+	}
+}
+
+MODULE_DEVICE_TABLE(of, mpc52xx_uart_of_match);
+
+static struct of_platform_driver mpc52xx_uart_of_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "mpc52xx-psc-uart",
+	.match_table	= mpc52xx_uart_of_match,
+	.probe		= mpc52xx_uart_of_probe,
+	.remove		= mpc52xx_uart_of_remove,
+#ifdef CONFIG_PM
+	.suspend	= mpc52xx_uart_of_suspend,
+	.resume		= mpc52xx_uart_of_resume,
+#endif
+	.driver		= {
+		.name	= "mpc52xx-psc-uart",
+	},
+};
+#endif /* defined(CONFIG_PPC_MERGE) */
 
 
 /* ======================================================================== */
@@ -811,22 +1107,45 @@ mpc52xx_uart_init(void)
 {
 	int ret;
 
-	printk(KERN_INFO "Serial: MPC52xx PSC driver\n");
+	printk(KERN_INFO "Serial: MPC52xx PSC UART driver\n");
 
-	ret = uart_register_driver(&mpc52xx_uart_driver);
-	if (ret == 0) {
-		ret = platform_driver_register(&mpc52xx_uart_platform_driver);
-		if (ret)
-			uart_unregister_driver(&mpc52xx_uart_driver);
+	if ((ret = uart_register_driver(&mpc52xx_uart_driver)) != 0) {
+		printk(KERN_ERR "%s: uart_register_driver failed (%i)\n",
+		       __FILE__, ret);
+		return ret;
 	}
 
-	return ret;
+#if defined(CONFIG_PPC_MERGE)
+	mpc52xx_uart_of_enumerate();
+
+	ret = of_register_platform_driver(&mpc52xx_uart_of_driver);
+	if (ret) {
+		printk(KERN_ERR "%s: of_register_platform_driver failed (%i)\n",
+		       __FILE__, ret);
+		uart_unregister_driver(&mpc52xx_uart_driver);
+		return ret;
+	}
+#else
+	ret = platform_driver_register(&mpc52xx_uart_platform_driver);
+	if (ret) {
+		printk(KERN_ERR "%s: platform_driver_register failed (%i)\n",
+		       __FILE__, ret);
+		uart_unregister_driver(&mpc52xx_uart_driver);
+		return ret;
+	}
+#endif
+
+	return 0;
 }
 
 static void __exit
 mpc52xx_uart_exit(void)
 {
+#if defined(CONFIG_PPC_MERGE)
+	of_unregister_platform_driver(&mpc52xx_uart_of_driver);
+#else
 	platform_driver_unregister(&mpc52xx_uart_platform_driver);
+#endif
 	uart_unregister_driver(&mpc52xx_uart_driver);
 }
 
diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c
index fdb33cd21a27..cb26c6df0583 100644
--- a/drivers/video/platinumfb.c
+++ b/drivers/video/platinumfb.c
@@ -34,6 +34,7 @@
 #include <asm/prom.h>
 #include <asm/pgtable.h>
 #include <asm/of_device.h>
+#include <asm/of_platform.h>
 
 #include "macmodes.h"
 #include "platinumfb.h"
@@ -682,14 +683,14 @@ static int __init platinumfb_init(void)
 		return -ENODEV;
 	platinumfb_setup(option);
 #endif
-	of_register_driver(&platinum_driver);
+	of_register_platform_driver(&platinum_driver);
 
 	return 0;
 }
 
 static void __exit platinumfb_exit(void)
 {
-	of_unregister_driver(&platinum_driver);	
+	of_unregister_platform_driver(&platinum_driver);
 }
 
 MODULE_LICENSE("GPL");