Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits)
  [ARM] Add comments marking in-use ptrace numbers
  [ARM] Move syscall saving out of the way of utrace
  [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro
  [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header
  [ARM] mm 10: allow memory type to be specified with ioremap
  [ARM] mm 9: add additional device memory types
  [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6
  [ARM] iop: add missing parens in macro
  [ARM] mm 7: remove duplicated __ioremap() prototypes
  ARM: OMAP: fix OMAP1 mpuio suspend/resume oops
  ARM: OMAP: MPUIO wake updates
  ARM: OMAP: speed up gpio irq handling
  ARM: OMAP: plat-omap changes for 2430 SDP
  ARM: OMAP: gpio object shrinkage, cleanup
  ARM: OMAP: /sys/kernel/debug/omap_gpio
  ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon
  ARM: OMAP: Enable 24xx GPIO autoidling
  [ARM] 4318/2: DSM-G600 Board Support
  [ARM] 4227/1: minor head.S fixups
  [ARM] 4328/1: Move i.MX UART regs to driver
  ...

14 files changed, 1109 insertions, 217 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 365c306c7cf..45dbdc14915 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -550,13 +550,21 @@ config PATA_WINBOND_VLB
 
 config PATA_PLATFORM
 	tristate "Generic platform device PATA support"
-	depends on EMBEDDED
+	depends on EMBEDDED || ARCH_RPC
 	help
 	  This option enables support for generic directly connected ATA
 	  devices commonly found on embedded systems.
 
 	  If unsure, say N.
 
+config PATA_ICSIDE
+	tristate "Acorn ICS PATA support"
+	depends on ARM && ARCH_ACORN
+	help
+	  On Acorn systems, say Y here if you wish to use the ICS PATA
+	  interface card.  This is not required for ICS partition support.
+	  If you are unsure, say N to this.
+
 config PATA_IXP4XX_CF
 	tristate "IXP4XX Compact Flash support"
 	depends on ARCH_IXP4XX
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index b7055e30265..6f42a0e2812 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_PATA_TRIFLEX)	+= pata_triflex.o
 obj-$(CONFIG_PATA_IXP4XX_CF)	+= pata_ixp4xx_cf.o
 obj-$(CONFIG_PATA_SCC)		+= pata_scc.o
 obj-$(CONFIG_PATA_PLATFORM)	+= pata_platform.o
+obj-$(CONFIG_PATA_ICSIDE)	+= pata_icside.o
 # Should be last but one libata driver
 obj-$(CONFIG_ATA_GENERIC)	+= ata_generic.o
 # Should be last libata driver
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
new file mode 100644
index 00000000000..dbc8ee2adcf
--- /dev/null
+++ b/drivers/ata/pata_icside.c
@@ -0,0 +1,686 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+
+#include <asm/dma.h>
+#include <asm/ecard.h>
+
+#define DRV_NAME	"pata_icside"
+
+#define ICS_IDENT_OFFSET		0x2280
+
+#define ICS_ARCIN_V5_INTRSTAT		0x0000
+#define ICS_ARCIN_V5_INTROFFSET		0x0004
+
+#define ICS_ARCIN_V6_INTROFFSET_1	0x2200
+#define ICS_ARCIN_V6_INTRSTAT_1		0x2290
+#define ICS_ARCIN_V6_INTROFFSET_2	0x3200
+#define ICS_ARCIN_V6_INTRSTAT_2		0x3290
+
+struct portinfo {
+	unsigned int dataoffset;
+	unsigned int ctrloffset;
+	unsigned int stepping;
+};
+
+static const struct portinfo pata_icside_portinfo_v5 = {
+	.dataoffset	= 0x2800,
+	.ctrloffset	= 0x2b80,
+	.stepping	= 6,
+};
+
+static const struct portinfo pata_icside_portinfo_v6_1 = {
+	.dataoffset	= 0x2000,
+	.ctrloffset	= 0x2380,
+	.stepping	= 6,
+};
+
+static const struct portinfo pata_icside_portinfo_v6_2 = {
+	.dataoffset	= 0x3000,
+	.ctrloffset	= 0x3380,
+	.stepping	= 6,
+};
+
+#define PATA_ICSIDE_MAX_SG	128
+
+struct pata_icside_state {
+	void __iomem *irq_port;
+	void __iomem *ioc_base;
+	unsigned int type;
+	unsigned int dma;
+	struct {
+		u8 port_sel;
+		u8 disabled;
+		unsigned int speed[ATA_MAX_DEVICES];
+	} port[2];
+	struct scatterlist sg[PATA_ICSIDE_MAX_SG];
+};
+
+#define ICS_TYPE_A3IN	0
+#define ICS_TYPE_A3USER	1
+#define ICS_TYPE_V6	3
+#define ICS_TYPE_V5	15
+#define ICS_TYPE_NOTYPE	((unsigned int)-1)
+
+/* ---------------- Version 5 PCB Support Functions --------------------- */
+/* Prototype: pata_icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
+ * Purpose  : enable interrupts from card
+ */
+static void pata_icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr)
+{
+	struct pata_icside_state *state = ec->irq_data;
+
+	writeb(0, state->irq_port + ICS_ARCIN_V5_INTROFFSET);
+}
+
+/* Prototype: pata_icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
+ * Purpose  : disable interrupts from card
+ */
+static void pata_icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr)
+{
+	struct pata_icside_state *state = ec->irq_data;
+
+	readb(state->irq_port + ICS_ARCIN_V5_INTROFFSET);
+}
+
+static const expansioncard_ops_t pata_icside_ops_arcin_v5 = {
+	.irqenable	= pata_icside_irqenable_arcin_v5,
+	.irqdisable	= pata_icside_irqdisable_arcin_v5,
+};
+
+
+/* ---------------- Version 6 PCB Support Functions --------------------- */
+/* Prototype: pata_icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
+ * Purpose  : enable interrupts from card
+ */
+static void pata_icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr)
+{
+	struct pata_icside_state *state = ec->irq_data;
+	void __iomem *base = state->irq_port;
+
+	if (!state->port[0].disabled)
+		writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1);
+	if (!state->port[1].disabled)
+		writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2);
+}
+
+/* Prototype: pata_icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
+ * Purpose  : disable interrupts from card
+ */
+static void pata_icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr)
+{
+	struct pata_icside_state *state = ec->irq_data;
+
+	readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1);
+	readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2);
+}
+
+/* Prototype: pata_icside_irqprobe(struct expansion_card *ec)
+ * Purpose  : detect an active interrupt from card
+ */
+static int pata_icside_irqpending_arcin_v6(struct expansion_card *ec)
+{
+	struct pata_icside_state *state = ec->irq_data;
+
+	return readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_1) & 1 ||
+	       readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_2) & 1;
+}
+
+static const expansioncard_ops_t pata_icside_ops_arcin_v6 = {
+	.irqenable	= pata_icside_irqenable_arcin_v6,
+	.irqdisable	= pata_icside_irqdisable_arcin_v6,
+	.irqpending	= pata_icside_irqpending_arcin_v6,
+};
+
+
+/*
+ * SG-DMA support.
+ *
+ * Similar to the BM-DMA, but we use the RiscPCs IOMD DMA controllers.
+ * There is only one DMA controller per card, which means that only
+ * one drive can be accessed at one time.  NOTE! We do not enforce that
+ * here, but we rely on the main IDE driver spotting that both
+ * interfaces use the same IRQ, which should guarantee this.
+ */
+
+/*
+ * Configure the IOMD to give the appropriate timings for the transfer
+ * mode being requested.  We take the advice of the ATA standards, and
+ * calculate the cycle time based on the transfer mode, and the EIDE
+ * MW DMA specs that the drive provides in the IDENTIFY command.
+ *
+ * We have the following IOMD DMA modes to choose from:
+ *
+ *	Type	Active		Recovery	Cycle
+ *	A	250 (250)	312 (550)	562 (800)
+ *	B	187 (200)	250 (550)	437 (750)
+ *	C	125 (125)	125 (375)	250 (500)
+ *	D	62  (50)	125 (375)	187 (425)
+ *
+ * (figures in brackets are actual measured timings on DIOR/DIOW)
+ *
+ * However, we also need to take care of the read/write active and
+ * recovery timings:
+ *
+ *			Read	Write
+ *  	Mode	Active	-- Recovery --	Cycle	IOMD type
+ *	MW0	215	50	215	480	A
+ *	MW1	80	50	50	150	C
+ *	MW2	70	25	25	120	C
+ */
+static void pata_icside_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+	struct pata_icside_state *state = ap->host->private_data;
+	struct ata_timing t;
+	unsigned int cycle;
+	char iomd_type;
+
+	/*
+	 * DMA is based on a 16MHz clock
+	 */
+	if (ata_timing_compute(adev, adev->dma_mode, &t, 1000, 1))
+		return;
+
+	/*
+	 * Choose the IOMD cycle timing which ensure that the interface
+	 * satisfies the measured active, recovery and cycle times.
+	 */
+	if (t.active <= 50 && t.recover <= 375 && t.cycle <= 425)
+		iomd_type = 'D', cycle = 187;
+	else if (t.active <= 125 && t.recover <= 375 && t.cycle <= 500)
+		iomd_type = 'C', cycle = 250;
+	else if (t.active <= 200 && t.recover <= 550 && t.cycle <= 750)
+		iomd_type = 'B', cycle = 437;
+	else
+		iomd_type = 'A', cycle = 562;
+
+	ata_dev_printk(adev, KERN_INFO, "timings: act %dns rec %dns cyc %dns (%c)\n",
+		t.active, t.recover, t.cycle, iomd_type);
+
+	state->port[ap->port_no].speed[adev->devno] = cycle;
+}
+
+static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc)
+{
+	struct ata_port *ap = qc->ap;
+	struct pata_icside_state *state = ap->host->private_data;
+	struct scatterlist *sg, *rsg = state->sg;
+	unsigned int write = qc->tf.flags & ATA_TFLAG_WRITE;
+
+	/*
+	 * We are simplex; BUG if we try to fiddle with DMA
+	 * while it's active.
+	 */
+	BUG_ON(dma_channel_active(state->dma));
+
+	/*
+	 * Copy ATAs scattered sg list into a contiguous array of sg
+	 */
+	ata_for_each_sg(sg, qc) {
+		memcpy(rsg, sg, sizeof(*sg));
+		rsg++;
+	}
+
+	/*
+	 * Route the DMA signals to the correct interface
+	 */
+	writeb(state->port[ap->port_no].port_sel, state->ioc_base);
+
+	set_dma_speed(state->dma, state->port[ap->port_no].speed[qc->dev->devno]);
+	set_dma_sg(state->dma, state->sg, rsg - state->sg);
+	set_dma_mode(state->dma, write ? DMA_MODE_WRITE : DMA_MODE_READ);
+
+	/* issue r/w command */
+	ap->ops->exec_command(ap, &qc->tf);
+}
+
+static void pata_icside_bmdma_start(struct ata_queued_cmd *qc)
+{
+	struct ata_port *ap = qc->ap;
+	struct pata_icside_state *state = ap->host->private_data;
+
+	BUG_ON(dma_channel_active(state->dma));
+	enable_dma(state->dma);
+}
+
+static void pata_icside_bmdma_stop(struct ata_queued_cmd *qc)
+{
+	struct ata_port *ap = qc->ap;
+	struct pata_icside_state *state = ap->host->private_data;
+
+	disable_dma(state->dma);
+
+	/* see ata_bmdma_stop */
+	ata_altstatus(ap);
+}
+
+static u8 pata_icside_bmdma_status(struct ata_port *ap)
+{
+	struct pata_icside_state *state = ap->host->private_data;
+	void __iomem *irq_port;
+
+	irq_port = state->irq_port + (ap->port_no ? ICS_ARCIN_V6_INTRSTAT_2 :
+						    ICS_ARCIN_V6_INTRSTAT_1);
+
+	return readb(irq_port) & 1 ? ATA_DMA_INTR : 0;
+}
+
+static int icside_dma_init(struct ata_probe_ent *ae, struct expansion_card *ec)
+{
+	struct pata_icside_state *state = ae->private_data;
+	int i;
+
+	for (i = 0; i < ATA_MAX_DEVICES; i++) {
+		state->port[0].speed[i] = 480;
+		state->port[1].speed[i] = 480;
+	}
+
+	if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) {
+		state->dma = ec->dma;
+		ae->mwdma_mask = 0x07;	/* MW0..2 */
+	}
+
+	return 0;
+}
+
+
+static int pata_icside_port_start(struct ata_port *ap)
+{
+	/* No PRD to alloc */
+	return ata_pad_alloc(ap, ap->dev);
+}
+
+static struct scsi_host_template pata_icside_sht = {
+	.module			= THIS_MODULE,
+	.name			= DRV_NAME,
+	.ioctl			= ata_scsi_ioctl,
+	.queuecommand		= ata_scsi_queuecmd,
+	.can_queue		= ATA_DEF_QUEUE,
+	.this_id		= ATA_SHT_THIS_ID,
+	.sg_tablesize		= PATA_ICSIDE_MAX_SG,
+	.cmd_per_lun		= ATA_SHT_CMD_PER_LUN,
+	.emulated		= ATA_SHT_EMULATED,
+	.use_clustering		= ATA_SHT_USE_CLUSTERING,
+	.proc_name		= DRV_NAME,
+	.dma_boundary		= ~0, /* no dma boundaries */
+	.slave_configure	= ata_scsi_slave_config,
+	.slave_destroy		= ata_scsi_slave_destroy,
+	.bios_param		= ata_std_bios_param,
+};
+
+/* wish this was exported from libata-core */
+static void ata_dummy_noret(struct ata_port *port)
+{
+}
+
+/*
+ * We need to shut down unused ports to prevent spurious interrupts.
+ * FIXME: the libata core doesn't call this function for PATA interfaces.
+ */
+static void pata_icside_port_disable(struct ata_port *ap)
+{
+	struct pata_icside_state *state = ap->host->private_data;
+
+	ata_port_printk(ap, KERN_ERR, "disabling icside port\n");
+
+	ata_port_disable(ap);
+
+	state->port[ap->port_no].disabled = 1;
+
+	if (state->type == ICS_TYPE_V6) {
+		/*
+		 * Disable interrupts from this port, otherwise we
+		 * receive spurious interrupts from the floating
+		 * interrupt line.
+		 */
+		void __iomem *irq_port = state->irq_port +
+				(ap->port_no ? ICS_ARCIN_V6_INTROFFSET_2 : ICS_ARCIN_V6_INTROFFSET_1);
+		readb(irq_port);
+	}
+}
+
+static u8 pata_icside_irq_ack(struct ata_port *ap, unsigned int chk_drq)
+{
+	unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
+	u8 status;
+
+	status = ata_busy_wait(ap, bits, 1000);
+	if (status & bits)
+		if (ata_msg_err(ap))
+			printk(KERN_ERR "abnormal status 0x%X\n", status);
+
+	if (ata_msg_intr(ap))
+		printk(KERN_INFO "%s: irq ack: drv_stat 0x%X\n",
+			__FUNCTION__, status);
+
+	return status;
+}
+
+static struct ata_port_operations pata_icside_port_ops = {
+	.port_disable		= pata_icside_port_disable,
+
+	.set_dmamode		= pata_icside_set_dmamode,
+
+	.tf_load		= ata_tf_load,
+	.tf_read		= ata_tf_read,
+	.exec_command		= ata_exec_command,
+	.check_status		= ata_check_status,
+	.dev_select		= ata_std_dev_select,
+
+	.bmdma_setup		= pata_icside_bmdma_setup,
+	.bmdma_start		= pata_icside_bmdma_start,
+
+	.data_xfer		= ata_data_xfer_noirq,
+
+	/* no need to build any PRD tables for DMA */
+	.qc_prep		= ata_noop_qc_prep,
+	.qc_issue		= ata_qc_issue_prot,
+
+	.freeze			= ata_bmdma_freeze,
+	.thaw			= ata_bmdma_thaw,
+	.error_handler		= ata_bmdma_error_handler,
+	.post_internal_cmd	= pata_icside_bmdma_stop,
+
+	.irq_handler		= ata_interrupt,
+	.irq_clear		= ata_dummy_noret,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= pata_icside_irq_ack,
+
+	.port_start		= pata_icside_port_start,
+
+	.bmdma_stop		= pata_icside_bmdma_stop,
+	.bmdma_status		= pata_icside_bmdma_status,
+};
+
+static void
+pata_icside_add_port(struct ata_probe_ent *ae, void __iomem *base,
+		     const struct portinfo *info)
+{
+	struct ata_ioports *ioaddr = &ae->port[ae->n_ports++];
+	void __iomem *cmd = base + info->dataoffset;
+
+	ioaddr->cmd_addr	= cmd;
+	ioaddr->data_addr	= cmd + (ATA_REG_DATA    << info->stepping);
+	ioaddr->error_addr	= cmd + (ATA_REG_ERR     << info->stepping);
+	ioaddr->feature_addr	= cmd + (ATA_REG_FEATURE << info->stepping);
+	ioaddr->nsect_addr	= cmd + (ATA_REG_NSECT   << info->stepping);
+	ioaddr->lbal_addr	= cmd + (ATA_REG_LBAL    << info->stepping);
+	ioaddr->lbam_addr	= cmd + (ATA_REG_LBAM    << info->stepping);
+	ioaddr->lbah_addr	= cmd + (ATA_REG_LBAH    << info->stepping);
+	ioaddr->device_addr	= cmd + (ATA_REG_DEVICE  << info->stepping);
+	ioaddr->status_addr	= cmd + (ATA_REG_STATUS  << info->stepping);
+	ioaddr->command_addr	= cmd + (ATA_REG_CMD     << info->stepping);
+
+	ioaddr->ctl_addr	= base + info->ctrloffset;
+	ioaddr->altstatus_addr	= ioaddr->ctl_addr;
+}
+
+static int __init
+pata_icside_register_v5(struct ata_probe_ent *ae, struct expansion_card *ec)
+{
+	struct pata_icside_state *state = ae->private_data;
+	void __iomem *base;
+
+	base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+		       ecard_resource_len(ec, ECARD_RES_MEMC));
+	if (!base)
+		return -ENOMEM;
+
+	state->irq_port = base;
+
+	ec->irqaddr = base + ICS_ARCIN_V5_INTRSTAT;
+	ec->irqmask = 1;
+	ec->irq_data = state;
+	ec->ops = &pata_icside_ops_arcin_v5;
+
+	/*
+	 * Be on the safe side - disable interrupts
+	 */
+	ec->ops->irqdisable(ec, ec->irq);
+
+	pata_icside_add_port(ae, base, &pata_icside_portinfo_v5);
+
+	return 0;
+}
+
+static int __init
+pata_icside_register_v6(struct ata_probe_ent *ae, struct expansion_card *ec)
+{
+	struct pata_icside_state *state = ae->private_data;
+	void __iomem *ioc_base, *easi_base;
+	unsigned int sel = 0;
+	int ret;
+
+	ioc_base = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
+			   ecard_resource_len(ec, ECARD_RES_IOCFAST));
+	if (!ioc_base) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	easi_base = ioc_base;
+
+	if (ecard_resource_flags(ec, ECARD_RES_EASI)) {
+		easi_base = ioremap(ecard_resource_start(ec, ECARD_RES_EASI),
+				    ecard_resource_len(ec, ECARD_RES_EASI));
+		if (!easi_base) {
+			ret = -ENOMEM;
+			goto unmap_slot;
+		}
+
+		/*
+		 * Enable access to the EASI region.
+		 */
+		sel = 1 << 5;
+	}
+
+	writeb(sel, ioc_base);
+
+	ec->irq_data = state;
+	ec->ops = &pata_icside_ops_arcin_v6;
+
+	state->irq_port = easi_base;
+	state->ioc_base = ioc_base;
+	state->port[0].port_sel = sel;
+	state->port[1].port_sel = sel | 1;
+
+	/*
+	 * Be on the safe side - disable interrupts
+	 */
+	ec->ops->irqdisable(ec, ec->irq);
+
+	/*
+	 * Find and register the interfaces.
+	 */
+	pata_icside_add_port(ae, easi_base, &pata_icside_portinfo_v6_1);
+	pata_icside_add_port(ae, easi_base, &pata_icside_portinfo_v6_2);
+
+	/*
+	 * FIXME: work around libata's aversion to calling port_disable.
+	 * This permanently disables interrupts on port 0 - bad luck if
+	 * you have a drive on that port.
+	 */
+	state->port[0].disabled = 1;
+
+	return icside_dma_init(ae, ec);
+
+ unmap_slot:
+	iounmap(ioc_base);
+ out:
+	return ret;
+}
+
+static int __devinit
+pata_icside_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+	struct pata_icside_state *state;
+	struct ata_probe_ent ae;
+	void __iomem *idmem;
+	int ret;
+
+	ret = ecard_request_resources(ec);
+	if (ret)
+		goto out;
+
+	state = kzalloc(sizeof(struct pata_icside_state), GFP_KERNEL);
+	if (!state) {
+		ret = -ENOMEM;
+		goto release;
+	}
+
+	state->type = ICS_TYPE_NOTYPE;
+	state->dma = NO_DMA;
+
+	idmem = ioremap(ecard_resource_start(ec, ECARD_RES_IOCFAST),
+			ecard_resource_len(ec, ECARD_RES_IOCFAST));
+	if (idmem) {
+		unsigned int type;
+
+		type = readb(idmem + ICS_IDENT_OFFSET) & 1;
+		type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1;
+		type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2;
+		type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3;
+		iounmap(idmem);
+
+		state->type = type;
+	}
+
+	memset(&ae, 0, sizeof(ae));
+	INIT_LIST_HEAD(&ae.node);
+	ae.dev          = &ec->dev;
+	ae.port_ops     = &pata_icside_port_ops;
+	ae.sht          = &pata_icside_sht;
+	ae.pio_mask     = 0x1f;
+	ae.irq          = ec->irq;
+	ae.port_flags   = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
+	ae._host_flags  = ATA_HOST_SIMPLEX;
+	ae.private_data = state;
+
+	switch (state->type) {
+	case ICS_TYPE_A3IN:
+		dev_warn(&ec->dev, "A3IN unsupported\n");
+		ret = -ENODEV;
+		break;
+
+	case ICS_TYPE_A3USER:
+		dev_warn(&ec->dev, "A3USER unsupported\n");
+		ret = -ENODEV;
+		break;
+
+	case ICS_TYPE_V5:
+		ret = pata_icside_register_v5(&ae, ec);
+		break;
+
+	case ICS_TYPE_V6:
+		ret = pata_icside_register_v6(&ae, ec);
+		break;
+
+	default:
+		dev_warn(&ec->dev, "unknown interface type\n");
+		ret = -ENODEV;
+		break;
+	}
+
+	if (ret == 0)
+		ret = ata_device_add(&ae) == 0 ? -ENODEV : 0;
+
+	if (ret == 0)
+		goto out;
+
+	kfree(state);
+ release:
+	ecard_release_resources(ec);
+ out:
+	return ret;
+}
+
+static void pata_icside_shutdown(struct expansion_card *ec)
+{
+	struct ata_host *host = ecard_get_drvdata(ec);
+	unsigned long flags;
+
+	/*
+	 * Disable interrupts from this card.  We need to do
+	 * this before disabling EASI since we may be accessing
+	 * this register via that region.
+	 */
+	local_irq_save(flags);
+	if (ec->ops)
+		ec->ops->irqdisable(ec, ec->irq);
+	local_irq_restore(flags);
+
+	/*
+	 * Reset the ROM pointer so that we can read the ROM
+	 * after a soft reboot.  This also disables access to
+	 * the IDE taskfile via the EASI region.
+	 */
+	if (host) {
+		struct pata_icside_state *state = host->private_data;
+		if (state->ioc_base)
+			writeb(0, state->ioc_base);
+	}
+}
+
+static void __devexit pata_icside_remove(struct expansion_card *ec)
+{
+	struct ata_host *host = ecard_get_drvdata(ec);
+	struct pata_icside_state *state = host->private_data;
+
+	ata_host_detach(host);
+
+	pata_icside_shutdown(ec);
+
+	/*
+	 * don't NULL out the drvdata - devres/libata wants it
+	 * to free the ata_host structure.
+	 */
+	ec->ops = NULL;
+	ec->irq_data = NULL;
+
+	if (state->dma != NO_DMA)
+		free_dma(state->dma);
+	if (state->ioc_base)
+		iounmap(state->ioc_base);
+	if (state->ioc_base != state->irq_port)
+		iounmap(state->irq_port);
+
+	kfree(state);
+	ecard_release_resources(ec);
+}
+
+static const struct ecard_id pata_icside_ids[] = {
+	{ MANU_ICS,  PROD_ICS_IDE  },
+	{ MANU_ICS2, PROD_ICS2_IDE },
+	{ 0xffff, 0xffff }
+};
+
+static struct ecard_driver pata_icside_driver = {
+	.probe		= pata_icside_probe,
+	.remove 	= __devexit_p(pata_icside_remove),
+	.shutdown	= pata_icside_shutdown,
+	.id_table	= pata_icside_ids,
+	.drv = {
+		.name	= DRV_NAME,
+	},
+};
+
+static int __init pata_icside_init(void)
+{
+	return ecard_register_driver(&pata_icside_driver);
+}
+
+static void __exit pata_icside_exit(void)
+{
+	ecard_remove_driver(&pata_icside_driver);
+}
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ICS PATA driver");
+
+module_init(pata_icside_init);
+module_exit(pata_icside_exit);
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index c059b27fa88..873544ab598 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -852,9 +852,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
 {
 	struct pxa_i2c *i2c = &i2c_pxa;
 	struct resource *res;
-#ifdef CONFIG_I2C_PXA_SLAVE
 	struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
-#endif
 	int ret;
 	int irq;
 
@@ -902,14 +900,14 @@ static int i2c_pxa_probe(struct platform_device *dev)
 		pxa_gpio_mode(GPIO117_I2CSCL_MD);
 		pxa_gpio_mode(GPIO118_I2CSDA_MD);
 #endif
-		pxa_set_cken(CKEN14_I2C, 1);
+		pxa_set_cken(CKEN_I2C, 1);
 		break;
 #ifdef CONFIG_PXA27x
 	case 1:
 		local_irq_disable();
 		PCFR |= PCFR_PI2CEN;
 		local_irq_enable();
-		pxa_set_cken(CKEN15_PWRI2C, 1);
+		pxa_set_cken(CKEN_PWRI2C, 1);
 #endif
 	}
 
@@ -924,6 +922,10 @@ static int i2c_pxa_probe(struct platform_device *dev)
 	i2c->adap.algo_data = i2c;
 	i2c->adap.dev.parent = &dev->dev;
 
+	if (plat) {
+		i2c->adap.class = plat->class;
+	}
+
 	ret = i2c_add_adapter(&i2c->adap);
 	if (ret < 0) {
 		printk(KERN_INFO "I2C: Failed to add bus\n");
@@ -946,11 +948,11 @@ eadapt:
 ereqirq:
 	switch (dev->id) {
 	case 0:
-		pxa_set_cken(CKEN14_I2C, 0);
+		pxa_set_cken(CKEN_I2C, 0);
 		break;
 #ifdef CONFIG_PXA27x
 	case 1:
-		pxa_set_cken(CKEN15_PWRI2C, 0);
+		pxa_set_cken(CKEN_PWRI2C, 0);
 		local_irq_disable();
 		PCFR &= ~PCFR_PI2CEN;
 		local_irq_enable();
@@ -973,11 +975,11 @@ static int i2c_pxa_remove(struct platform_device *dev)
 	free_irq(i2c->irq, i2c);
 	switch (dev->id) {
 	case 0:
-		pxa_set_cken(CKEN14_I2C, 0);
+		pxa_set_cken(CKEN_I2C, 0);
 		break;
 #ifdef CONFIG_PXA27x
 	case 1:
-		pxa_set_cken(CKEN15_PWRI2C, 0);
+		pxa_set_cken(CKEN_PWRI2C, 0);
 		local_irq_disable();
 		PCFR &= ~PCFR_PI2CEN;
 		local_irq_enable();
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index a98ff98fa56..d97d3864b57 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -368,14 +368,14 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		if (CLOCKRATE / clk > ios->clock)
 			clk <<= 1;
 		host->clkrt = fls(clk) - 1;
-		pxa_set_cken(CKEN12_MMC, 1);
+		pxa_set_cken(CKEN_MMC, 1);
 
 		/*
 		 * we write clkrt on the next command
 		 */
 	} else {
 		pxamci_stop_clock(host);
-		pxa_set_cken(CKEN12_MMC, 0);
+		pxa_set_cken(CKEN_MMC, 0);
 	}
 
 	if (host->power_mode != ios->power_mode) {
diff --git a/drivers/net/irda/pxaficp_ir.c b/drivers/net/irda/pxaficp_ir.c
index fb196fd9185..55ff0fbe525 100644
--- a/drivers/net/irda/pxaficp_ir.c
+++ b/drivers/net/irda/pxaficp_ir.c
@@ -134,7 +134,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
 			DCSR(si->rxdma) &= ~DCSR_RUN;
 			/* disable FICP */
 			ICCR0 = 0;
-			pxa_set_cken(CKEN13_FICP, 0);
+			pxa_set_cken(CKEN_FICP, 0);
 
 			/* set board transceiver to SIR mode */
 			si->pdata->transceiver_mode(si->dev, IR_SIRMODE);
@@ -144,7 +144,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
 			pxa_gpio_mode(GPIO47_STTXD_MD);
 
 			/* enable the STUART clock */
-			pxa_set_cken(CKEN5_STUART, 1);
+			pxa_set_cken(CKEN_STUART, 1);
 		}
 
 		/* disable STUART first */
@@ -169,7 +169,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
 		/* disable STUART */
 		STIER = 0;
 		STISR = 0;
-		pxa_set_cken(CKEN5_STUART, 0);
+		pxa_set_cken(CKEN_STUART, 0);
 
 		/* disable FICP first */
 		ICCR0 = 0;
@@ -182,7 +182,7 @@ static int pxa_irda_set_speed(struct pxa_irda *si, int speed)
 		pxa_gpio_mode(GPIO47_ICPTXD_MD);
 
 		/* enable the FICP clock */
-		pxa_set_cken(CKEN13_FICP, 1);
+		pxa_set_cken(CKEN_FICP, 1);
 
 		si->speed = speed;
 		pxa_irda_fir_dma_rx_start(si);
@@ -593,7 +593,7 @@ static void pxa_irda_shutdown(struct pxa_irda *si)
 	/* disable STUART SIR mode */
 	STISR = 0;
 	/* disable the STUART clock */
-	pxa_set_cken(CKEN5_STUART, 0);
+	pxa_set_cken(CKEN_STUART, 0);
 
 	/* disable DMA */
 	DCSR(si->txdma) &= ~DCSR_RUN;
@@ -601,7 +601,7 @@ static void pxa_irda_shutdown(struct pxa_irda *si)
 	/* disable FICP */
 	ICCR0 = 0;
 	/* disable the FICP clock */
-	pxa_set_cken(CKEN13_FICP, 0);
+	pxa_set_cken(CKEN_FICP, 0);
 
 	DRCMR17 = 0;
 	DRCMR18 = 0;
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index f69bd097166..1a9a24b8263 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -48,6 +48,7 @@
 #include <linux/serial.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/serial.h>
+#include <linux/clk.h>
 
 #include <asm/io.h>
 
@@ -70,6 +71,7 @@
  */
 struct uart_amba_port {
 	struct uart_port	port;
+	struct clk		*clk;
 	struct amba_device	*dev;
 	struct amba_pl010_data	*data;
 	unsigned int		old_status;
@@ -77,73 +79,77 @@ struct uart_amba_port {
 
 static void pl010_stop_tx(struct uart_port *port)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int cr;
 
-	cr = readb(port->membase + UART010_CR);
+	cr = readb(uap->port.membase + UART010_CR);
 	cr &= ~UART010_CR_TIE;
-	writel(cr, port->membase + UART010_CR);
+	writel(cr, uap->port.membase + UART010_CR);
 }
 
 static void pl010_start_tx(struct uart_port *port)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int cr;
 
-	cr = readb(port->membase + UART010_CR);
+	cr = readb(uap->port.membase + UART010_CR);
 	cr |= UART010_CR_TIE;
-	writel(cr, port->membase + UART010_CR);
+	writel(cr, uap->port.membase + UART010_CR);
 }
 
 static void pl010_stop_rx(struct uart_port *port)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int cr;
 
-	cr = readb(port->membase + UART010_CR);
+	cr = readb(uap->port.membase + UART010_CR);
 	cr &= ~(UART010_CR_RIE | UART010_CR_RTIE);
-	writel(cr, port->membase + UART010_CR);
+	writel(cr, uap->port.membase + UART010_CR);
 }
 
 static void pl010_enable_ms(struct uart_port *port)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int cr;
 
-	cr = readb(port->membase + UART010_CR);
+	cr = readb(uap->port.membase + UART010_CR);
 	cr |= UART010_CR_MSIE;
-	writel(cr, port->membase + UART010_CR);
+	writel(cr, uap->port.membase + UART010_CR);
 }
 
-static void pl010_rx_chars(struct uart_port *port)
+static void pl010_rx_chars(struct uart_amba_port *uap)
 {
-	struct tty_struct *tty = port->info->tty;
+	struct tty_struct *tty = uap->port.info->tty;
 	unsigned int status, ch, flag, rsr, max_count = 256;
 
-	status = readb(port->membase + UART01x_FR);
+	status = readb(uap->port.membase + UART01x_FR);
 	while (UART_RX_DATA(status) && max_count--) {
-		ch = readb(port->membase + UART01x_DR);
+		ch = readb(uap->port.membase + UART01x_DR);
 		flag = TTY_NORMAL;
 
-		port->icount.rx++;
+		uap->port.icount.rx++;
 
 		/*
 		 * Note that the error handling code is
 		 * out of the main execution path
 		 */
-		rsr = readb(port->membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
+		rsr = readb(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
 		if (unlikely(rsr & UART01x_RSR_ANY)) {
-			writel(0, port->membase + UART01x_ECR);
+			writel(0, uap->port.membase + UART01x_ECR);
 
 			if (rsr & UART01x_RSR_BE) {
 				rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
-				port->icount.brk++;
-				if (uart_handle_break(port))
+				uap->port.icount.brk++;
+				if (uart_handle_break(&uap->port))
 					goto ignore_char;
 			} else if (rsr & UART01x_RSR_PE)
-				port->icount.parity++;
+				uap->port.icount.parity++;
 			else if (rsr & UART01x_RSR_FE)
-				port->icount.frame++;
+				uap->port.icount.frame++;
 			if (rsr & UART01x_RSR_OE)
-				port->icount.overrun++;
+				uap->port.icount.overrun++;
 
-			rsr &= port->read_status_mask;
+			rsr &= uap->port.read_status_mask;
 
 			if (rsr & UART01x_RSR_BE)
 				flag = TTY_BREAK;
@@ -153,53 +159,52 @@ static void pl010_rx_chars(struct uart_port *port)
 				flag = TTY_FRAME;
 		}
 
-		if (uart_handle_sysrq_char(port, ch))
+		if (uart_handle_sysrq_char(&uap->port, ch))
 			goto ignore_char;
 
-		uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag);
+		uart_insert_char(&uap->port, rsr, UART01x_RSR_OE, ch, flag);
 
 	ignore_char:
-		status = readb(port->membase + UART01x_FR);
+		status = readb(uap->port.membase + UART01x_FR);
 	}
 	tty_flip_buffer_push(tty);
 	return;
 }
 
-static void pl010_tx_chars(struct uart_port *port)
+static void pl010_tx_chars(struct uart_amba_port *uap)
 {
-	struct circ_buf *xmit = &port->info->xmit;
+	struct circ_buf *xmit = &uap->port.info->xmit;
 	int count;
 
-	if (port->x_char) {
-		writel(port->x_char, port->membase + UART01x_DR);
-		port->icount.tx++;
-		port->x_char = 0;
+	if (uap->port.x_char) {
+		writel(uap->port.x_char, uap->port.membase + UART01x_DR);
+		uap->port.icount.tx++;
+		uap->port.x_char = 0;
 		return;
 	}
-	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
-		pl010_stop_tx(port);
+	if (uart_circ_empty(xmit) || uart_tx_stopped(&uap->port)) {
+		pl010_stop_tx(&uap->port);
 		return;
 	}
 
-	count = port->fifosize >> 1;
+	count = uap->port.fifosize >> 1;
 	do {
-		writel(xmit->buf[xmit->tail], port->membase + UART01x_DR);
+		writel(xmit->buf[xmit->tail], uap->port.membase + UART01x_DR);
 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		port->icount.tx++;
+		uap->port.icount.tx++;
 		if (uart_circ_empty(xmit))
 			break;
 	} while (--count > 0);
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-		uart_write_wakeup(port);
+		uart_write_wakeup(&uap->port);
 
 	if (uart_circ_empty(xmit))
-		pl010_stop_tx(port);
+		pl010_stop_tx(&uap->port);
 }
 
-static void pl010_modem_status(struct uart_port *port)
+static void pl010_modem_status(struct uart_amba_port *uap)
 {
-	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int status, delta;
 
 	writel(0, uap->port.membase + UART010_ICR);
@@ -226,47 +231,50 @@ static void pl010_modem_status(struct uart_port *port)
 
 static irqreturn_t pl010_int(int irq, void *dev_id)
 {
-	struct uart_port *port = dev_id;
+	struct uart_amba_port *uap = dev_id;
 	unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT;
 	int handled = 0;
 
-	spin_lock(&port->lock);
+	spin_lock(&uap->port.lock);
 
-	status = readb(port->membase + UART010_IIR);
+	status = readb(uap->port.membase + UART010_IIR);
 	if (status) {
 		do {
 			if (status & (UART010_IIR_RTIS | UART010_IIR_RIS))
-				pl010_rx_chars(port);
+				pl010_rx_chars(uap);
 			if (status & UART010_IIR_MIS)
-				pl010_modem_status(port);
+				pl010_modem_status(uap);
 			if (status & UART010_IIR_TIS)
-				pl010_tx_chars(port);
+				pl010_tx_chars(uap);
 
 			if (pass_counter-- == 0)
 				break;
 
-			status = readb(port->membase + UART010_IIR);
+			status = readb(uap->port.membase + UART010_IIR);
 		} while (status & (UART010_IIR_RTIS | UART010_IIR_RIS |
 				   UART010_IIR_TIS));
 		handled = 1;
 	}
 
-	spin_unlock(&port->lock);
+	spin_unlock(&uap->port.lock);
 
 	return IRQ_RETVAL(handled);
 }
 
 static unsigned int pl010_tx_empty(struct uart_port *port)
 {
-	return readb(port->membase + UART01x_FR) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+	unsigned int status = readb(uap->port.membase + UART01x_FR);
+	return status & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
 }
 
 static unsigned int pl010_get_mctrl(struct uart_port *port)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int result = 0;
 	unsigned int status;
 
-	status = readb(port->membase + UART01x_FR);
+	status = readb(uap->port.membase + UART01x_FR);
 	if (status & UART01x_FR_DCD)
 		result |= TIOCM_CAR;
 	if (status & UART01x_FR_DSR)
@@ -287,17 +295,18 @@ static void pl010_set_mctrl(struct uart_port *port, unsigned int mctrl)
 
 static void pl010_break_ctl(struct uart_port *port, int break_state)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned long flags;
 	unsigned int lcr_h;
 
-	spin_lock_irqsave(&port->lock, flags);
-	lcr_h = readb(port->membase + UART010_LCRH);
+	spin_lock_irqsave(&uap->port.lock, flags);
+	lcr_h = readb(uap->port.membase + UART010_LCRH);
 	if (break_state == -1)
 		lcr_h |= UART01x_LCRH_BRK;
 	else
 		lcr_h &= ~UART01x_LCRH_BRK;
-	writel(lcr_h, port->membase + UART010_LCRH);
-	spin_unlock_irqrestore(&port->lock, flags);
+	writel(lcr_h, uap->port.membase + UART010_LCRH);
+	spin_unlock_irqrestore(&uap->port.lock, flags);
 }
 
 static int pl010_startup(struct uart_port *port)
@@ -306,48 +315,70 @@ static int pl010_startup(struct uart_port *port)
 	int retval;
 
 	/*
+	 * Try to enable the clock producer.
+	 */
+	retval = clk_enable(uap->clk);
+	if (retval)
+		goto out;
+
+	uap->port.uartclk = clk_get_rate(uap->clk);
+
+	/*
 	 * Allocate the IRQ
 	 */
-	retval = request_irq(port->irq, pl010_int, 0, "uart-pl010", port);
+	retval = request_irq(uap->port.irq, pl010_int, 0, "uart-pl010", uap);
 	if (retval)
-		return retval;
+		goto clk_dis;
 
 	/*
 	 * initialise the old status of the modem signals
 	 */
-	uap->old_status = readb(port->membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
+	uap->old_status = readb(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
 
 	/*
 	 * Finally, enable interrupts
 	 */
 	writel(UART01x_CR_UARTEN | UART010_CR_RIE | UART010_CR_RTIE,
-	       port->membase + UART010_CR);
+	       uap->port.membase + UART010_CR);
 
 	return 0;
+
+ clk_dis:
+	clk_disable(uap->clk);
+ out:
+	return retval;
 }
 
 static void pl010_shutdown(struct uart_port *port)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+
 	/*
 	 * Free the interrupt
 	 */
-	free_irq(port->irq, port);
+	free_irq(uap->port.irq, uap);
 
 	/*
 	 * disable all interrupts, disable the port
 	 */
-	writel(0, port->membase + UART010_CR);
+	writel(0, uap->port.membase + UART010_CR);
 
 	/* disable break condition and fifos */
-	writel(readb(port->membase + UART010_LCRH) &
+	writel(readb(uap->port.membase + UART010_LCRH) &
 		~(UART01x_LCRH_BRK | UART01x_LCRH_FEN),
-	       port->membase + UART010_LCRH);
+	       uap->port.membase + UART010_LCRH);
+
+	/*
+	 * Shut down the clock producer
+	 */
+	clk_disable(uap->clk);
 }
 
 static void
 pl010_set_termios(struct uart_port *port, struct ktermios *termios,
 		     struct ktermios *old)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int lcr_h, old_cr;
 	unsigned long flags;
 	unsigned int baud, quot;
@@ -355,7 +386,7 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
 	/*
 	 * Ask the core to calculate the divisor for us.
 	 */
-	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); 
+	baud = uart_get_baud_rate(port, termios, old, 0, uap->port.uartclk/16); 
 	quot = uart_get_divisor(port, baud);
 
 	switch (termios->c_cflag & CSIZE) {
@@ -379,66 +410,66 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
 		if (!(termios->c_cflag & PARODD))
 			lcr_h |= UART01x_LCRH_EPS;
 	}
-	if (port->fifosize > 1)
+	if (uap->port.fifosize > 1)
 		lcr_h |= UART01x_LCRH_FEN;
 
-	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&uap->port.lock, flags);
 
 	/*
 	 * Update the per-port timeout.
 	 */
 	uart_update_timeout(port, termios->c_cflag, baud);
 
-	port->read_status_mask = UART01x_RSR_OE;
+	uap->port.read_status_mask = UART01x_RSR_OE;
 	if (termios->c_iflag & INPCK)
-		port->read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+		uap->port.read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
 	if (termios->c_iflag & (BRKINT | PARMRK))
-		port->read_status_mask |= UART01x_RSR_BE;
+		uap->port.read_status_mask |= UART01x_RSR_BE;
 
 	/*
 	 * Characters to ignore
 	 */
-	port->ignore_status_mask = 0;
+	uap->port.ignore_status_mask = 0;
 	if (termios->c_iflag & IGNPAR)
-		port->ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+		uap->port.ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
 	if (termios->c_iflag & IGNBRK) {
-		port->ignore_status_mask |= UART01x_RSR_BE;
+		uap->port.ignore_status_mask |= UART01x_RSR_BE;
 		/*
 		 * If we're ignoring parity and break indicators,
 		 * ignore overruns too (for real raw support).
 		 */
 		if (termios->c_iflag & IGNPAR)
-			port->ignore_status_mask |= UART01x_RSR_OE;
+			uap->port.ignore_status_mask |= UART01x_RSR_OE;
 	}
 
 	/*
 	 * Ignore all characters if CREAD is not set.
 	 */
 	if ((termios->c_cflag & CREAD) == 0)
-		port->ignore_status_mask |= UART_DUMMY_RSR_RX;
+		uap->port.ignore_status_mask |= UART_DUMMY_RSR_RX;
 
 	/* first, disable everything */
-	old_cr = readb(port->membase + UART010_CR) & ~UART010_CR_MSIE;
+	old_cr = readb(uap->port.membase + UART010_CR) & ~UART010_CR_MSIE;
 
 	if (UART_ENABLE_MS(port, termios->c_cflag))
 		old_cr |= UART010_CR_MSIE;
 
-	writel(0, port->membase + UART010_CR);
+	writel(0, uap->port.membase + UART010_CR);
 
 	/* Set baud rate */
 	quot -= 1;
-	writel((quot & 0xf00) >> 8, port->membase + UART010_LCRM);
-	writel(quot & 0xff, port->membase + UART010_LCRL);
+	writel((quot & 0xf00) >> 8, uap->port.membase + UART010_LCRM);
+	writel(quot & 0xff, uap->port.membase + UART010_LCRL);
 
 	/*
 	 * ----------v----------v----------v----------v-----
 	 * NOTE: MUST BE WRITTEN AFTER UARTLCR_M & UARTLCR_L
 	 * ----------^----------^----------^----------^-----
 	 */
-	writel(lcr_h, port->membase + UART010_LCRH);
-	writel(old_cr, port->membase + UART010_CR);
+	writel(lcr_h, uap->port.membase + UART010_LCRH);
+	writel(old_cr, uap->port.membase + UART010_CR);
 
-	spin_unlock_irqrestore(&port->lock, flags);
+	spin_unlock_irqrestore(&uap->port.lock, flags);
 }
 
 static const char *pl010_type(struct uart_port *port)
@@ -514,47 +545,52 @@ static struct uart_amba_port *amba_ports[UART_NR];
 
 static void pl010_console_putchar(struct uart_port *port, int ch)
 {
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
 	unsigned int status;
 
 	do {
-		status = readb(port->membase + UART01x_FR);
+		status = readb(uap->port.membase + UART01x_FR);
 		barrier();
 	} while (!UART_TX_READY(status));
-	writel(ch, port->membase + UART01x_DR);
+	writel(ch, uap->port.membase + UART01x_DR);
 }
 
 static void
 pl010_console_write(struct console *co, const char *s, unsigned int count)
 {
-	struct uart_port *port = &amba_ports[co->index]->port;
+	struct uart_amba_port *uap = amba_ports[co->index];
 	unsigned int status, old_cr;
 
+	clk_enable(uap->clk);
+
 	/*
 	 *	First save the CR then disable the interrupts
 	 */
-	old_cr = readb(port->membase + UART010_CR);
-	writel(UART01x_CR_UARTEN, port->membase + UART010_CR);
+	old_cr = readb(uap->port.membase + UART010_CR);
+	writel(UART01x_CR_UARTEN, uap->port.membase + UART010_CR);
 
-	uart_console_write(port, s, count, pl010_console_putchar);
+	uart_console_write(&uap->port, s, count, pl010_console_putchar);
 
 	/*
 	 *	Finally, wait for transmitter to become empty
 	 *	and restore the TCR
 	 */
 	do {
-		status = readb(port->membase + UART01x_FR);
+		status = readb(uap->port.membase + UART01x_FR);
 		barrier();
 	} while (status & UART01x_FR_BUSY);
-	writel(old_cr, port->membase + UART010_CR);
+	writel(old_cr, uap->port.membase + UART010_CR);
+
+	clk_disable(uap->clk);
 }
 
 static void __init
-pl010_console_get_options(struct uart_port *port, int *baud,
+pl010_console_get_options(struct uart_amba_port *uap, int *baud,
 			     int *parity, int *bits)
 {
-	if (readb(port->membase + UART010_CR) & UART01x_CR_UARTEN) {
+	if (readb(uap->port.membase + UART010_CR) & UART01x_CR_UARTEN) {
 		unsigned int lcr_h, quot;
-		lcr_h = readb(port->membase + UART010_LCRH);
+		lcr_h = readb(uap->port.membase + UART010_LCRH);
 
 		*parity = 'n';
 		if (lcr_h & UART01x_LCRH_PEN) {
@@ -569,14 +605,15 @@ pl010_console_get_options(struct uart_port *port, int *baud,
 		else
 			*bits = 8;
 
-		quot = readb(port->membase + UART010_LCRL) | readb(port->membase + UART010_LCRM) << 8;
-		*baud = port->uartclk / (16 * (quot + 1));
+		quot = readb(uap->port.membase + UART010_LCRL) |
+		       readb(uap->port.membase + UART010_LCRM) << 8;
+		*baud = uap->port.uartclk / (16 * (quot + 1));
 	}
 }
 
 static int __init pl010_console_setup(struct console *co, char *options)
 {
-	struct uart_port *port;
+	struct uart_amba_port *uap;
 	int baud = 38400;
 	int bits = 8;
 	int parity = 'n';
@@ -589,16 +626,18 @@ static int __init pl010_console_setup(struct console *co, char *options)
 	 */
 	if (co->index >= UART_NR)
 		co->index = 0;
-	if (!amba_ports[co->index])
+	uap = amba_ports[co->index];
+	if (!uap)
 		return -ENODEV;
-	port = &amba_ports[co->index]->port;
+
+	uap->port.uartclk = clk_get_rate(uap->clk);
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
 	else
-		pl010_console_get_options(port, &baud, &parity, &bits);
+		pl010_console_get_options(uap, &baud, &parity, &bits);
 
-	return uart_set_options(port, co, baud, parity, bits, flow);
+	return uart_set_options(&uap->port, co, baud, parity, bits, flow);
 }
 
 static struct uart_driver amba_reg;
@@ -629,7 +668,7 @@ static struct uart_driver amba_reg = {
 
 static int pl010_probe(struct amba_device *dev, void *id)
 {
-	struct uart_amba_port *port;
+	struct uart_amba_port *uap;
 	void __iomem *base;
 	int i, ret;
 
@@ -642,8 +681,8 @@ static int pl010_probe(struct amba_device *dev, void *id)
 		goto out;
 	}
 
-	port = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
-	if (!port) {
+	uap = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL);
+	if (!uap) {
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -654,51 +693,57 @@ static int pl010_probe(struct amba_device *dev, void *id)
 		goto free;
 	}
 
-	port->port.dev = &dev->dev;
-	port->port.mapbase = dev->res.start;
-	port->port.membase = base;
-	port->port.iotype = UPIO_MEM;
-	port->port.irq = dev->irq[0];
-	port->port.uartclk = 14745600;
-	port->port.fifosize = 16;
-	port->port.ops = &amba_pl010_pops;
-	port->port.flags = UPF_BOOT_AUTOCONF;
-	port->port.line = i;
-	port->dev = dev;
-	port->data = dev->dev.platform_data;
-
-	amba_ports[i] = port;
-
-	amba_set_drvdata(dev, port);
-	ret = uart_add_one_port(&amba_reg, &port->port);
+	uap->clk = clk_get(&dev->dev, "UARTCLK");
+	if (IS_ERR(uap->clk)) {
+		ret = PTR_ERR(uap->clk);
+		goto unmap;
+	}
+
+	uap->port.dev = &dev->dev;
+	uap->port.mapbase = dev->res.start;
+	uap->port.membase = base;
+	uap->port.iotype = UPIO_MEM;
+	uap->port.irq = dev->irq[0];
+	uap->port.fifosize = 16;
+	uap->port.ops = &amba_pl010_pops;
+	uap->port.flags = UPF_BOOT_AUTOCONF;
+	uap->port.line = i;
+	uap->dev = dev;
+	uap->data = dev->dev.platform_data;
+
+	amba_ports[i] = uap;
+
+	amba_set_drvdata(dev, uap);
+	ret = uart_add_one_port(&amba_reg, &uap->port);
 	if (ret) {
 		amba_set_drvdata(dev, NULL);
 		amba_ports[i] = NULL;
+		clk_put(uap->clk);
+ unmap:
 		iounmap(base);
  free:
-		kfree(port);
+		kfree(uap);
 	}
-
  out:
 	return ret;
 }
 
 static int pl010_remove(struct amba_device *dev)
 {
-	struct uart_amba_port *port = amba_get_drvdata(dev);
+	struct uart_amba_port *uap = amba_get_drvdata(dev);
 	int i;
 
 	amba_set_drvdata(dev, NULL);
 
-	uart_remove_one_port(&amba_reg, &port->port);
+	uart_remove_one_port(&amba_reg, &uap->port);
 
 	for (i = 0; i < ARRAY_SIZE(amba_ports); i++)
-		if (amba_ports[i] == port)
+		if (amba_ports[i] == uap)
 			amba_ports[i] = NULL;
 
-	iounmap(port->port.membase);
-	kfree(port);
-
+	iounmap(uap->port.membase);
+	clk_put(uap->clk);
+	kfree(uap);
 	return 0;
 }
 
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 935f48fa501..3320bcd92c0 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -484,11 +484,16 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios * termios,
 	unsigned long flags;
 	unsigned int mode, imr, quot, baud;
 
+	/* Get current mode register */
+	mode = UART_GET_MR(port) & ~(ATMEL_US_USCLKS | ATMEL_US_CHRL | ATMEL_US_NBSTOP | ATMEL_US_PAR);
+
 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
 	quot = uart_get_divisor(port, baud);
 
-	/* Get current mode register */
-	mode = UART_GET_MR(port) & ~(ATMEL_US_CHRL | ATMEL_US_NBSTOP | ATMEL_US_PAR);
+	if (quot > 65535) {		/* BRGR is 16-bit, so switch to slower clock */
+		quot /= 8;
+		mode |= ATMEL_US_USCLKS_MCK_DIV8;
+	}
 
 	/* byte size */
 	switch (termios->c_cflag & CSIZE) {
diff --git a/drivers/serial/atmel_serial.h b/drivers/serial/atmel_serial.h
index 11b44360e10..e0141776517 100644
--- a/drivers/serial/atmel_serial.h
+++ b/drivers/serial/atmel_serial.h
@@ -46,6 +46,9 @@
 #define			ATMEL_US_USMODE_ISO7816_T1	6
 #define			ATMEL_US_USMODE_IRDA		8
 #define		ATMEL_US_USCLKS		(3   <<  4)		/* Clock Selection */
+#define			ATMEL_US_USCLKS_MCK		(0 <<  4)
+#define			ATMEL_US_USCLKS_MCK_DIV8	(1 <<  4)
+#define			ATMEL_US_USCLKS_SCK		(3 <<  4)
 #define		ATMEL_US_CHRL		(3   <<  6)		/* Character Length */
 #define			ATMEL_US_CHRL_5			(0 <<  6)
 #define			ATMEL_US_CHRL_6			(1 <<  6)
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 04cc88cc528..e42faa4e428 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -46,6 +46,122 @@
 #include <asm/hardware.h>
 #include <asm/arch/imx-uart.h>
 
+/* Register definitions */
+#define URXD0 0x0  /* Receiver Register */
+#define URTX0 0x40 /* Transmitter Register */
+#define UCR1  0x80 /* Control Register 1 */
+#define UCR2  0x84 /* Control Register 2 */
+#define UCR3  0x88 /* Control Register 3 */
+#define UCR4  0x8c /* Control Register 4 */
+#define UFCR  0x90 /* FIFO Control Register */
+#define USR1  0x94 /* Status Register 1 */
+#define USR2  0x98 /* Status Register 2 */
+#define UESC  0x9c /* Escape Character Register */
+#define UTIM  0xa0 /* Escape Timer Register */
+#define UBIR  0xa4 /* BRM Incremental Register */
+#define UBMR  0xa8 /* BRM Modulator Register */
+#define UBRC  0xac /* Baud Rate Count Register */
+#define BIPR1 0xb0 /* Incremental Preset Register 1 */
+#define BIPR2 0xb4 /* Incremental Preset Register 2 */
+#define BIPR3 0xb8 /* Incremental Preset Register 3 */
+#define BIPR4 0xbc /* Incremental Preset Register 4 */
+#define BMPR1 0xc0 /* BRM Modulator Register 1 */
+#define BMPR2 0xc4 /* BRM Modulator Register 2 */
+#define BMPR3 0xc8 /* BRM Modulator Register 3 */
+#define BMPR4 0xcc /* BRM Modulator Register 4 */
+#define UTS   0xd0 /* UART Test Register */
+
+/* UART Control Register Bit Fields.*/
+#define  URXD_CHARRDY    (1<<15)
+#define  URXD_ERR        (1<<14)
+#define  URXD_OVRRUN     (1<<13)
+#define  URXD_FRMERR     (1<<12)
+#define  URXD_BRK        (1<<11)
+#define  URXD_PRERR      (1<<10)
+#define  UCR1_ADEN       (1<<15) /* Auto dectect interrupt */
+#define  UCR1_ADBR       (1<<14) /* Auto detect baud rate */
+#define  UCR1_TRDYEN     (1<<13) /* Transmitter ready interrupt enable */
+#define  UCR1_IDEN       (1<<12) /* Idle condition interrupt */
+#define  UCR1_RRDYEN     (1<<9)	 /* Recv ready interrupt enable */
+#define  UCR1_RDMAEN     (1<<8)	 /* Recv ready DMA enable */
+#define  UCR1_IREN       (1<<7)	 /* Infrared interface enable */
+#define  UCR1_TXMPTYEN   (1<<6)	 /* Transimitter empty interrupt enable */
+#define  UCR1_RTSDEN     (1<<5)	 /* RTS delta interrupt enable */
+#define  UCR1_SNDBRK     (1<<4)	 /* Send break */
+#define  UCR1_TDMAEN     (1<<3)	 /* Transmitter ready DMA enable */
+#define  UCR1_UARTCLKEN  (1<<2)	 /* UART clock enabled */
+#define  UCR1_DOZE       (1<<1)	 /* Doze */
+#define  UCR1_UARTEN     (1<<0)	 /* UART enabled */
+#define  UCR2_ESCI     	 (1<<15) /* Escape seq interrupt enable */
+#define  UCR2_IRTS  	 (1<<14) /* Ignore RTS pin */
+#define  UCR2_CTSC  	 (1<<13) /* CTS pin control */
+#define  UCR2_CTS        (1<<12) /* Clear to send */
+#define  UCR2_ESCEN      (1<<11) /* Escape enable */
+#define  UCR2_PREN       (1<<8)  /* Parity enable */
+#define  UCR2_PROE       (1<<7)  /* Parity odd/even */
+#define  UCR2_STPB       (1<<6)	 /* Stop */
+#define  UCR2_WS         (1<<5)	 /* Word size */
+#define  UCR2_RTSEN      (1<<4)	 /* Request to send interrupt enable */
+#define  UCR2_TXEN       (1<<2)	 /* Transmitter enabled */
+#define  UCR2_RXEN       (1<<1)	 /* Receiver enabled */
+#define  UCR2_SRST 	 (1<<0)	 /* SW reset */
+#define  UCR3_DTREN 	 (1<<13) /* DTR interrupt enable */
+#define  UCR3_PARERREN   (1<<12) /* Parity enable */
+#define  UCR3_FRAERREN   (1<<11) /* Frame error interrupt enable */
+#define  UCR3_DSR        (1<<10) /* Data set ready */
+#define  UCR3_DCD        (1<<9)  /* Data carrier detect */
+#define  UCR3_RI         (1<<8)  /* Ring indicator */
+#define  UCR3_TIMEOUTEN  (1<<7)  /* Timeout interrupt enable */
+#define  UCR3_RXDSEN	 (1<<6)  /* Receive status interrupt enable */
+#define  UCR3_AIRINTEN   (1<<5)  /* Async IR wake interrupt enable */
+#define  UCR3_AWAKEN	 (1<<4)  /* Async wake interrupt enable */
+#define  UCR3_REF25 	 (1<<3)  /* Ref freq 25 MHz */
+#define  UCR3_REF30 	 (1<<2)  /* Ref Freq 30 MHz */
+#define  UCR3_INVT  	 (1<<1)  /* Inverted Infrared transmission */
+#define  UCR3_BPEN  	 (1<<0)  /* Preset registers enable */
+#define  UCR4_CTSTL_32   (32<<10) /* CTS trigger level (32 chars) */
+#define  UCR4_INVR  	 (1<<9)  /* Inverted infrared reception */
+#define  UCR4_ENIRI 	 (1<<8)  /* Serial infrared interrupt enable */
+#define  UCR4_WKEN  	 (1<<7)  /* Wake interrupt enable */
+#define  UCR4_REF16 	 (1<<6)  /* Ref freq 16 MHz */
+#define  UCR4_IRSC  	 (1<<5)  /* IR special case */
+#define  UCR4_TCEN  	 (1<<3)  /* Transmit complete interrupt enable */
+#define  UCR4_BKEN  	 (1<<2)  /* Break condition interrupt enable */
+#define  UCR4_OREN  	 (1<<1)  /* Receiver overrun interrupt enable */
+#define  UCR4_DREN  	 (1<<0)  /* Recv data ready interrupt enable */
+#define  UFCR_RXTL_SHF   0       /* Receiver trigger level shift */
+#define  UFCR_RFDIV      (7<<7)  /* Reference freq divider mask */
+#define  UFCR_TXTL_SHF   10      /* Transmitter trigger level shift */
+#define  USR1_PARITYERR  (1<<15) /* Parity error interrupt flag */
+#define  USR1_RTSS  	 (1<<14) /* RTS pin status */
+#define  USR1_TRDY  	 (1<<13) /* Transmitter ready interrupt/dma flag */
+#define  USR1_RTSD  	 (1<<12) /* RTS delta */
+#define  USR1_ESCF  	 (1<<11) /* Escape seq interrupt flag */
+#define  USR1_FRAMERR    (1<<10) /* Frame error interrupt flag */
+#define  USR1_RRDY       (1<<9)	 /* Receiver ready interrupt/dma flag */
+#define  USR1_TIMEOUT    (1<<7)	 /* Receive timeout interrupt status */
+#define  USR1_RXDS  	 (1<<6)	 /* Receiver idle interrupt flag */
+#define  USR1_AIRINT	 (1<<5)	 /* Async IR wake interrupt flag */
+#define  USR1_AWAKE 	 (1<<4)	 /* Aysnc wake interrupt flag */
+#define  USR2_ADET  	 (1<<15) /* Auto baud rate detect complete */
+#define  USR2_TXFE  	 (1<<14) /* Transmit buffer FIFO empty */
+#define  USR2_DTRF  	 (1<<13) /* DTR edge interrupt flag */
+#define  USR2_IDLE  	 (1<<12) /* Idle condition */
+#define  USR2_IRINT 	 (1<<8)	 /* Serial infrared interrupt flag */
+#define  USR2_WAKE  	 (1<<7)	 /* Wake */
+#define  USR2_RTSF  	 (1<<4)	 /* RTS edge interrupt flag */
+#define  USR2_TXDC  	 (1<<3)	 /* Transmitter complete */
+#define  USR2_BRCD  	 (1<<2)	 /* Break condition */
+#define  USR2_ORE        (1<<1)	 /* Overrun error */
+#define  USR2_RDR        (1<<0)	 /* Recv data ready */
+#define  UTS_FRCPERR	 (1<<13) /* Force parity error */
+#define  UTS_LOOP        (1<<12) /* Loop tx and rx */
+#define  UTS_TXEMPTY	 (1<<6)	 /* TxFIFO empty */
+#define  UTS_RXEMPTY	 (1<<5)	 /* RxFIFO empty */
+#define  UTS_TXFULL 	 (1<<4)	 /* TxFIFO full */
+#define  UTS_RXFULL 	 (1<<3)	 /* RxFIFO full */
+#define  UTS_SOFTRST	 (1<<0)	 /* Software reset */
+
 /* We've been assigned a range on the "Low-density serial ports" major */
 #define SERIAL_IMX_MAJOR	204
 #define MINOR_START		41
@@ -128,7 +244,10 @@ static void imx_timeout(unsigned long data)
 static void imx_stop_tx(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
-	UCR1((u32)sport->port.membase) &= ~UCR1_TXMPTYEN;
+	unsigned long temp;
+
+	temp = readl(sport->port.membase + UCR1);
+	writel(temp & ~UCR1_TXMPTYEN, sport->port.membase + UCR1);
 }
 
 /*
@@ -137,7 +256,10 @@ static void imx_stop_tx(struct uart_port *port)
 static void imx_stop_rx(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
-	UCR2((u32)sport->port.membase) &= ~UCR2_RXEN;
+	unsigned long temp;
+
+	temp = readl(sport->port.membase + UCR2);
+	writel(temp &~ UCR2_RXEN, sport->port.membase + UCR2);
 }
 
 /*
@@ -154,10 +276,10 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
 {
 	struct circ_buf *xmit = &sport->port.info->xmit;
 
-	while (!(UTS((u32)sport->port.membase) & UTS_TXFULL)) {
+	while (!(readl(sport->port.membase + UTS) & UTS_TXFULL)) {
 		/* send xmit->buf[xmit->tail]
 		 * out the port here */
-		URTX0((u32)sport->port.membase) = xmit->buf[xmit->tail];
+		writel(xmit->buf[xmit->tail], sport->port.membase + URTX0);
 		xmit->tail = (xmit->tail + 1) &
 		         (UART_XMIT_SIZE - 1);
 		sport->port.icount.tx++;
@@ -175,21 +297,24 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
 static void imx_start_tx(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
+	unsigned long temp;
 
-	UCR1((u32)sport->port.membase) |= UCR1_TXMPTYEN;
+	temp = readl(sport->port.membase + UCR1);
+	writel(temp | UCR1_TXMPTYEN, sport->port.membase + UCR1);
 
-	imx_transmit_buffer(sport);
+	if (readl(sport->port.membase + UTS) & UTS_TXEMPTY)
+		imx_transmit_buffer(sport);
 }
 
 static irqreturn_t imx_rtsint(int irq, void *dev_id)
 {
 	struct imx_port *sport = (struct imx_port *)dev_id;
-	unsigned int val = USR1((u32)sport->port.membase)&USR1_RTSS;
+	unsigned int val = readl(sport->port.membase + USR1) & USR1_RTSS;
 	unsigned long flags;
 
 	spin_lock_irqsave(&sport->port.lock, flags);
 
-	USR1((u32)sport->port.membase) = USR1_RTSD;
+	writel(USR1_RTSD, sport->port.membase + USR1);
 	uart_handle_cts_change(&sport->port, !!val);
 	wake_up_interruptible(&sport->port.info->delta_msr_wait);
 
@@ -207,7 +332,7 @@ static irqreturn_t imx_txint(int irq, void *dev_id)
 	if (sport->port.x_char)
 	{
 		/* Send next char */
-		URTX0((u32)sport->port.membase) = sport->port.x_char;
+		writel(sport->port.x_char, sport->port.membase + URTX0);
 		goto out;
 	}
 
@@ -231,17 +356,18 @@ static irqreturn_t imx_rxint(int irq, void *dev_id)
 	struct imx_port *sport = dev_id;
 	unsigned int rx,flg,ignored = 0;
 	struct tty_struct *tty = sport->port.info->tty;
-	unsigned long flags;
+	unsigned long flags, temp;
 
-	rx = URXD0((u32)sport->port.membase);
+	rx = readl(sport->port.membase + URXD0);
 	spin_lock_irqsave(&sport->port.lock,flags);
 
 	do {
 		flg = TTY_NORMAL;
 		sport->port.icount.rx++;
 
-		if( USR2((u32)sport->port.membase) & USR2_BRCD ) {
-			USR2((u32)sport->port.membase) |= USR2_BRCD;
+		temp = readl(sport->port.membase + USR2);
+		if( temp & USR2_BRCD ) {
+			writel(temp | USR2_BRCD, sport->port.membase + USR2);
 			if(uart_handle_break(&sport->port))
 				goto ignore_char;
 		}
@@ -257,7 +383,7 @@ static irqreturn_t imx_rxint(int irq, void *dev_id)
 		tty_insert_flip_char(tty, rx, flg);
 
 	ignore_char:
-		rx = URXD0((u32)sport->port.membase);
+		rx = readl(sport->port.membase + URXD0);
 	} while(rx & URXD_CHARRDY);
 
 out:
@@ -301,7 +427,7 @@ static unsigned int imx_tx_empty(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
 
-	return USR2((u32)sport->port.membase) & USR2_TXDC ?  TIOCSER_TEMT : 0;
+	return (readl(sport->port.membase + USR2) & USR2_TXDC) ?  TIOCSER_TEMT : 0;
 }
 
 /*
@@ -312,10 +438,10 @@ static unsigned int imx_get_mctrl(struct uart_port *port)
         struct imx_port *sport = (struct imx_port *)port;
         unsigned int tmp = TIOCM_DSR | TIOCM_CAR;
 
-        if (USR1((u32)sport->port.membase) & USR1_RTSS)
+        if (readl(sport->port.membase + USR1) & USR1_RTSS)
                 tmp |= TIOCM_CTS;
 
-        if (UCR2((u32)sport->port.membase) & UCR2_CTS)
+        if (readl(sport->port.membase + UCR2) & UCR2_CTS)
                 tmp |= TIOCM_RTS;
 
         return tmp;
@@ -324,11 +450,14 @@ static unsigned int imx_get_mctrl(struct uart_port *port)
 static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
         struct imx_port *sport = (struct imx_port *)port;
+	unsigned long temp;
+
+	temp = readl(sport->port.membase + UCR2) & ~UCR2_CTS;
 
         if (mctrl & TIOCM_RTS)
-                UCR2((u32)sport->port.membase) |= UCR2_CTS;
-        else
-                UCR2((u32)sport->port.membase) &= ~UCR2_CTS;
+		temp |= UCR2_CTS;
+
+	writel(temp, sport->port.membase + UCR2);
 }
 
 /*
@@ -337,14 +466,16 @@ static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl)
 static void imx_break_ctl(struct uart_port *port, int break_state)
 {
 	struct imx_port *sport = (struct imx_port *)port;
-	unsigned long flags;
+	unsigned long flags, temp;
 
 	spin_lock_irqsave(&sport->port.lock, flags);
 
+	temp = readl(sport->port.membase + UCR1) & ~UCR1_SNDBRK;
+
 	if ( break_state != 0 )
-		UCR1((u32)sport->port.membase) |= UCR1_SNDBRK;
-	else
-		UCR1((u32)sport->port.membase) &= ~UCR1_SNDBRK;
+		temp |= UCR1_SNDBRK;
+
+	writel(temp, sport->port.membase + UCR1);
 
 	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
@@ -360,7 +491,7 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
 	/* set receiver / transmitter trigger level.
 	 * RFDIV is set such way to satisfy requested uartclk value
 	 */
-	val = TXTL<<10 | RXTL;
+	val = TXTL << 10 | RXTL;
 	ufcr_rfdiv = (imx_get_perclk1() + sport->port.uartclk / 2) / sport->port.uartclk;
 
 	if(!ufcr_rfdiv)
@@ -373,7 +504,7 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
 
 	val |= UFCR_RFDIV & (ufcr_rfdiv << 7);
 
-	UFCR((u32)sport->port.membase) = val;
+	writel(val, sport->port.membase + UFCR);
 
 	return 0;
 }
@@ -382,14 +513,15 @@ static int imx_startup(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
 	int retval;
-	unsigned long flags;
+	unsigned long flags, temp;
 
 	imx_setup_ufcr(sport, 0);
 
 	/* disable the DREN bit (Data Ready interrupt enable) before
 	 * requesting IRQs
 	 */
-	UCR4((u32)sport->port.membase) &= ~UCR4_DREN;
+	temp = readl(sport->port.membase + UCR4);
+	writel(temp & ~UCR4_DREN, sport->port.membase + UCR4);
 
 	/*
 	 * Allocate the IRQ
@@ -411,12 +543,16 @@ static int imx_startup(struct uart_port *port)
 	/*
 	 * Finally, clear and enable interrupts
 	 */
+	writel(USR1_RTSD, sport->port.membase + USR1);
+
+	temp = readl(sport->port.membase + UCR1);
+	temp |= (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
+	writel(temp, sport->port.membase + UCR1);
 
-	USR1((u32)sport->port.membase) = USR1_RTSD;
-	UCR1((u32)sport->port.membase) |=
-	                 (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
+	temp = readl(sport->port.membase + UCR2);
+	temp |= (UCR2_RXEN | UCR2_TXEN);
+	writel(temp, sport->port.membase + UCR2);
 
-	UCR2((u32)sport->port.membase) |= (UCR2_RXEN | UCR2_TXEN);
 	/*
 	 * Enable modem status interrupts
 	 */
@@ -437,6 +573,7 @@ error_out1:
 static void imx_shutdown(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
+	unsigned long temp;
 
 	/*
 	 * Stop our timer.
@@ -454,8 +591,9 @@ static void imx_shutdown(struct uart_port *port)
 	 * Disable all interrupts, port and break condition.
 	 */
 
-	UCR1((u32)sport->port.membase) &=
-	                 ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
+	temp = readl(sport->port.membase + UCR1);
+	temp &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
+	writel(temp, sport->port.membase + UCR1);
 }
 
 static void
@@ -548,18 +686,18 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 	/*
 	 * disable interrupts and drain transmitter
 	 */
-	old_ucr1 = UCR1((u32)sport->port.membase);
-	UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
+	old_ucr1 = readl(sport->port.membase + UCR1);
+	writel(old_ucr1 & ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN),
+			sport->port.membase + UCR1);
 
-	while ( !(USR2((u32)sport->port.membase) & USR2_TXDC))
+	while ( !(readl(sport->port.membase + USR2) & USR2_TXDC))
 		barrier();
 
 	/* then, disable everything */
-	old_txrxen = UCR2((u32)sport->port.membase) & ( UCR2_TXEN | UCR2_RXEN );
-	UCR2((u32)sport->port.membase) &= ~( UCR2_TXEN | UCR2_RXEN);
-
-	/* set the parity, stop bits and data size */
-	UCR2((u32)sport->port.membase) = ucr2;
+	old_txrxen = readl(sport->port.membase + UCR2);
+	writel(old_txrxen & ~( UCR2_TXEN | UCR2_RXEN),
+			sport->port.membase + UCR2);
+	old_txrxen &= (UCR2_TXEN | UCR2_RXEN);
 
 	/* set the baud rate. We assume uartclk = 16 MHz
 	 *
@@ -567,11 +705,13 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 	 * --------- = --------
 	 *  uartclk    UBMR - 1
 	 */
-	UBIR((u32)sport->port.membase) = (baud / 100) - 1;
-	UBMR((u32)sport->port.membase) = 10000 - 1;
+	writel((baud / 100) - 1, sport->port.membase + UBIR);
+	writel(10000 - 1, sport->port.membase + UBMR);
+
+	writel(old_ucr1, sport->port.membase + UCR1);
 
-	UCR1((u32)sport->port.membase) = old_ucr1;
-	UCR2((u32)sport->port.membase) |= old_txrxen;
+	/* set the parity, stop bits and data size */
+	writel(ucr2 | old_txrxen, sport->port.membase + UCR2);
 
 	if (UART_ENABLE_MS(&sport->port, termios->c_cflag))
 		imx_enable_ms(&sport->port);
@@ -730,9 +870,11 @@ static void __init imx_init_ports(void)
 static void imx_console_putchar(struct uart_port *port, int ch)
 {
 	struct imx_port *sport = (struct imx_port *)port;
-	while ((UTS((u32)sport->port.membase) & UTS_TXFULL))
+
+	while (readl(sport->port.membase + UTS) & UTS_TXFULL)
 		barrier();
-	URTX0((u32)sport->port.membase) = ch;
+
+	writel(ch, sport->port.membase + URTX0);
 }
 
 /*
@@ -747,13 +889,14 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 	/*
 	 *	First, save UCR1/2 and then disable interrupts
 	 */
-	old_ucr1 = UCR1((u32)sport->port.membase);
-	old_ucr2 = UCR2((u32)sport->port.membase);
+	old_ucr1 = readl(sport->port.membase + UCR1);
+	old_ucr2 = readl(sport->port.membase + UCR2);
 
-	UCR1((u32)sport->port.membase) =
-	                   (old_ucr1 | UCR1_UARTCLKEN | UCR1_UARTEN)
-	                   & ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
-	UCR2((u32)sport->port.membase) = old_ucr2 | UCR2_TXEN;
+	writel((old_ucr1 | UCR1_UARTCLKEN | UCR1_UARTEN) &
+		~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN),
+		sport->port.membase + UCR1);
+
+	writel(old_ucr2 | UCR2_TXEN, sport->port.membase + UCR2);
 
 	uart_console_write(&sport->port, s, count, imx_console_putchar);
 
@@ -761,10 +904,10 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 	 *	Finally, wait for transmitter to become empty
 	 *	and restore UCR1/2
 	 */
-	while (!(USR2((u32)sport->port.membase) & USR2_TXDC));
+	while (!(readl(sport->port.membase + USR2) & USR2_TXDC));
 
-	UCR1((u32)sport->port.membase) = old_ucr1;
-	UCR2((u32)sport->port.membase) = old_ucr2;
+	writel(old_ucr1, sport->port.membase + UCR1);
+	writel(old_ucr2, sport->port.membase + UCR2);
 }
 
 /*
@@ -776,13 +919,13 @@ imx_console_get_options(struct imx_port *sport, int *baud,
 			   int *parity, int *bits)
 {
 
-	if ( UCR1((u32)sport->port.membase) | UCR1_UARTEN ) {
+	if ( readl(sport->port.membase + UCR1) | UCR1_UARTEN ) {
 		/* ok, the port was enabled */
 		unsigned int ucr2, ubir,ubmr, uartclk;
 		unsigned int baud_raw;
 		unsigned int ucfr_rfdiv;
 
-		ucr2 = UCR2((u32)sport->port.membase);
+		ucr2 = readl(sport->port.membase + UCR2);
 
 		*parity = 'n';
 		if (ucr2 & UCR2_PREN) {
@@ -797,11 +940,10 @@ imx_console_get_options(struct imx_port *sport, int *baud,
 		else
 			*bits = 7;
 
-		ubir = UBIR((u32)sport->port.membase) & 0xffff;
-		ubmr = UBMR((u32)sport->port.membase) & 0xffff;
-
+		ubir = readl(sport->port.membase + UBIR) & 0xffff;
+		ubmr = readl(sport->port.membase + UBMR) & 0xffff;
 
-		ucfr_rfdiv = (UFCR((u32)sport->port.membase) & UFCR_RFDIV) >> 7;
+		ucfr_rfdiv = (readl(sport->port.membase + UFCR) & UFCR_RFDIV) >> 7;
 		if (ucfr_rfdiv == 6)
 			ucfr_rfdiv = 7;
 		else
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index d403aaa5509..e9c6cb391a2 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -717,7 +717,7 @@ struct uart_ops serial_pxa_pops = {
 static struct uart_pxa_port serial_pxa_ports[] = {
      {	/* FFUART */
 	.name	= "FFUART",
-	.cken	= CKEN6_FFUART,
+	.cken	= CKEN_FFUART,
 	.port	= {
 		.type		= PORT_PXA,
 		.iotype		= UPIO_MEM,
@@ -731,7 +731,7 @@ static struct uart_pxa_port serial_pxa_ports[] = {
 	},
   }, {	/* BTUART */
 	.name	= "BTUART",
-	.cken	= CKEN7_BTUART,
+	.cken	= CKEN_BTUART,
 	.port	= {
 		.type		= PORT_PXA,
 		.iotype		= UPIO_MEM,
@@ -745,7 +745,7 @@ static struct uart_pxa_port serial_pxa_ports[] = {
 	},
   }, {	/* STUART */
 	.name	= "STUART",
-	.cken	= CKEN5_STUART,
+	.cken	= CKEN_STUART,
 	.port	= {
 		.type		= PORT_PXA,
 		.iotype		= UPIO_MEM,
@@ -759,7 +759,7 @@ static struct uart_pxa_port serial_pxa_ports[] = {
 	},
   }, {  /* HWUART */
 	.name	= "HWUART",
-	.cken	= CKEN4_HWUART,
+	.cken	= CKEN_HWUART,
 	.port = {
 		.type		= PORT_PXA,
 		.iotype		= UPIO_MEM,
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index 2c043a1ea15..84392e835d5 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -1483,7 +1483,7 @@ static void udc_disable(struct pxa2xx_udc *dev)
 
 #ifdef	CONFIG_ARCH_PXA
         /* Disable clock for USB device */
-	pxa_set_cken(CKEN11_USB, 0);
+	pxa_set_cken(CKEN_USB, 0);
 #endif
 
 	ep0_idle (dev);
@@ -1529,7 +1529,7 @@ static void udc_enable (struct pxa2xx_udc *dev)
 
 #ifdef	CONFIG_ARCH_PXA
         /* Enable clock for USB device */
-	pxa_set_cken(CKEN11_USB, 1);
+	pxa_set_cken(CKEN_USB, 1);
 	udelay(5);
 #endif
 
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index f1563dc319d..23d2fe5a62f 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -80,7 +80,7 @@ static int pxa27x_start_hc(struct device *dev)
 
 	inf = dev->platform_data;
 
-	pxa_set_cken(CKEN10_USBHOST, 1);
+	pxa_set_cken(CKEN_USBHOST, 1);
 
 	UHCHR |= UHCHR_FHR;
 	udelay(11);
@@ -123,7 +123,7 @@ static void pxa27x_stop_hc(struct device *dev)
 	UHCCOMS |= 1;
 	udelay(10);
 
-	pxa_set_cken(CKEN10_USBHOST, 0);
+	pxa_set_cken(CKEN_USBHOST, 0);
 }
 
 
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index b4947c81070..0b195f33f84 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -803,7 +803,7 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
 	pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3);
 
 	/* enable LCD controller clock */
-	pxa_set_cken(CKEN16_LCD, 1);
+	pxa_set_cken(CKEN_LCD, 1);
 
 	/* Sequence from 11.7.10 */
 	LCCR3 = fbi->reg_lccr3;
@@ -840,7 +840,7 @@ static void pxafb_disable_controller(struct pxafb_info *fbi)
 	remove_wait_queue(&fbi->ctrlr_wait, &wait);
 
 	/* disable LCD controller clock */
-	pxa_set_cken(CKEN16_LCD, 0);
+	pxa_set_cken(CKEN_LCD, 0);
 }
 
 /*