path: root/packages/linux/linux-rp-2.6.18/tmio-tc6393-r7.patch

Index: linux-2.6.18/arch/arm/common/tc6393xb.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.18/arch/arm/common/tc6393xb.c	2006-09-20 16:17:02.000000000 +0200
@@ -0,0 +1,669 @@
+/*
+ * Toshiba TC6393XB SoC support
+ *
+ * Maintainer: Chris Humbert <mahadri-kernel@drigon.com>
+ *
+ * Copyright (c) 2005-2006 Chris Humbert
+ * Copyright (c) 2005 Dirk Opfer
+ *
+ * Based on code written by Sharp/Lineo for 2.4 kernels
+ * Based on locomo.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+#include <asm/arch/irqs.h>
+#include <asm/hardware/tmio.h>
+
+#ifndef TMIO_SOC_TC6393XB
+#error "TC6393XB SoC not configured"
+#endif
+
+/*--------------------------------------------------------------------------*/
+
+/* cell ids must be 0-based because they are used as array indexes. */
+#define	TC6393_CELL_NAND	0
+#define TC6393_CELL_SD		1
+#define	TC6393_CELL_OHCI	2
+#define TC6393_CELL_SERIAL	3
+#define TC6393_CELL_LCD		4
+#define TC6393_NUM_CELLS	5
+
+#define TC6393_RESOURCE(_name, _start, _end, _flags)	\
+	{						\
+		.name		= _name,		\
+		.start		= _start,		\
+		.end		= _end,			\
+		.flags		= _flags,		\
+	}
+
+#define TC6393_MEM(name, start, size)	\
+	TC6393_RESOURCE(name, start, (start) + (size) - 1, IORESOURCE_MEM)
+
+#define TC6393_IRQ(name, irq)	\
+	TC6393_RESOURCE(name, irq, irq, IORESOURCE_IRQ)
+
+const static struct resource tc6393_NAND_resource[] = {
+	TC6393_MEM (TMIO_NAME_NAND,	0x000100,	0x100),
+	TC6393_MEM (TMIO_NAME_NAND,	0x001000,	0x008),
+	TC6393_MEM (TMIO_NAME_NAND,	0,		0),
+	TC6393_IRQ (TMIO_NAME_NAND,	IRQ_TC6393_NAND),
+};
+
+const static struct resource tc6393_SD_resource[] = {
+	TC6393_MEM (TMIO_NAME_SD,	0x000200,	0x100),
+	TC6393_MEM (TMIO_NAME_SD,	0x002000,	0x200),
+	TC6393_MEM (TMIO_NAME_SD,	0,		0),
+	TC6393_IRQ (TMIO_NAME_SD,	IRQ_TC6393_SD),
+};
+
+const static struct resource tc6393_OHCI_resource[] = {
+	TC6393_MEM (TMIO_NAME_OHCI,	0x000300,	0x100),
+	TC6393_MEM (TMIO_NAME_OHCI,	0x003000,	0x100),
+	TC6393_MEM (TMIO_NAME_OHCI,	0x010000,	32 * 1024),
+	TC6393_IRQ (TMIO_NAME_OHCI,	IRQ_TC6393_OHCI),
+};
+
+const static struct resource tc6393_SERIAL_resource[] = {
+	TC6393_MEM (TMIO_NAME_SERIAL,	0x000400,	0x100),
+	TC6393_MEM (TMIO_NAME_SERIAL,	0x004000,	0x100),
+	TC6393_MEM (TMIO_NAME_SERIAL,	0,		0),
+	TC6393_IRQ (TMIO_NAME_SERIAL,	IRQ_TC6393_SERIAL),
+};
+
+const static struct resource tc6393_LCD_resource[] = {
+	TC6393_MEM (TMIO_NAME_LCD,	0x000500,	0x100),
+	TC6393_MEM (TMIO_NAME_LCD,	0x005000,	0x200),
+	TC6393_MEM (TMIO_NAME_LCD,	0x100000,	1024 * 1024),
+	TC6393_IRQ (TMIO_NAME_LCD,	IRQ_TC6393_LCD),
+};
+
+#define TC6393_CELL(_NAME)						\
+	[TC6393_CELL_##_NAME] = {					\
+		.name		= TMIO_NAME_##_NAME,			\
+		.id		= TC6393_CELL_##_NAME,			\
+		.resource	= tc6393_##_NAME##_resource,		\
+		.num_resources	= ARRAY_SIZE (tc6393_##_NAME##_resource), \
+	}
+
+struct tc6393_cell {
+	const char*		name;
+	unsigned int		id;
+	const struct resource*	resource;
+	unsigned int		num_resources;
+};
+
+const static struct tc6393_cell tc6393_cell [TC6393_NUM_CELLS] = {
+	TC6393_CELL (NAND	),
+	TC6393_CELL (SD		),
+	TC6393_CELL (OHCI	),
+	TC6393_CELL (SERIAL	),
+	TC6393_CELL (LCD	),
+};
+
+/*--------------------------------------------------------------------------*/
+
+/*
+ * TC6393 System Configuration Register
+ */
+struct tc6393_scr {
+	u8 x00[8];
+	u8	revid;		/* 0x08 Revision ID			*/
+	u8 x01[0x47];
+	u8	isr;		/* 0x50 Interrupt Status		*/
+	u8 x02;
+	u8	imr;		/* 0x52 Interrupt Mask			*/
+	u8 x03;
+	u8	irr;		/* 0x54 Interrupt Routing		*/
+	u8 x04[0x0b];
+	u16	gper;		/* 0x60 GP Enable			*/
+	u8 x05[2];
+	u16	gpi_sr[2];	/* 0x64 GPI Status			*/
+	u16	gpi_imr[2];	/* 0x68 GPI INT Mask			*/
+	u16	gpi_eder[2];	/* 0x6c GPI Edge Detect Enable		*/
+	u16	gpi_lir[4];	/* 0x70 GPI Level Invert		*/
+	u16	gpo_dsr[2];	/* 0x78 GPO Data Set			*/
+	u16	gpo_doecr[2];	/* 0x7c GPO Data OE Control		*/
+	u16	gp_iarcr[2];	/* 0x80 GP Internal Active Reg Control	*/
+	u16	gp_iarlcr[2];	/* 0x84 GP Internal Active Reg Level Con*/
+	u8	gpi_bcr[4];	/* 0x88 GPI Buffer Control		*/
+	u16	gpa_iarcr;	/* 0x8c GPa Internal Active Reg Control	*/
+	u8 x06[2];
+	u16	gpa_iarlcr;	/* 0x90 GPa Internal Active Reg Level Co*/
+	u8 x07[2];
+	u16	gpa_bcr;	/* 0x94 GPa Buffer Control		*/
+	u8 x08[2];
+	u16	ccr;		/* 0x98 Clock Control			*/
+	u16	pll2cr;		/* 0x9a PLL2 Control			*/
+	u16	pll1cr[2];	/* 0x9c PLL1 Control			*/
+	u8	diarcr;		/* 0xa0 Device Internal Active Reg Contr*/
+	u8	dbocr;		/* 0xa1 Device Buffer Off Control	*/
+	u8 x09[0x3e];
+	u8	fer;		/* 0xe0 Function Enable			*/
+	u8 x10[3];
+	u16	mcr;		/* 0xe4 Mode Control			*/
+	u8 x11[0x14];
+	u8	config;		/* 0xfc Configuration Control		*/
+	u8 x12[2];
+	u8	debug;		/* 0xff Debug				*/
+} __attribute__ ((packed));
+
+union tc6393_scr_fer {
+	u8		raw;
+struct {
+	unsigned	usben:1;	/* D0	USB enable		*/
+	unsigned	lcdcven:1;	/* D1	polysylicon TFT enable	*/
+	unsigned	slcden:1;	/* D2	SLCD enable		*/
+} __attribute__ ((packed));
+} __attribute__ ((packed));
+
+union tc6393_scr_ccr {
+	u16		raw;
+struct {
+	unsigned	ck32ken:1;	/* D0	SD host clock enable	*/
+	unsigned	usbcken:1;	/* D1	USB host clock enable	*/
+	unsigned	x00:2;
+	unsigned	sharp:1;	/* D4	??? set in Sharp's code	*/
+	unsigned	x01:3;
+	enum {				disable	= 0,
+					m12MHz	= 1,
+					m24MHz	= 2,
+					m48MHz	= 3,
+	}		mclksel:3;	/* D10-D8  LCD controller clock	*/
+	unsigned	x02:1;
+	enum {				h24MHz	= 0,
+					h48MHz	= 1,
+	}		hclksel:2;	/* D13-D12 host bus clock	*/
+	unsigned	x03:2;
+} __attribute__ ((packed));
+} __attribute__ ((packed));
+
+/*--------------------------------------------------------------------------*/
+
+struct tc6393 {
+	spinlock_t		lock;	/* read-modify-write lock	*/
+	struct device*		dev;	/* TC6393 device		*/
+	struct tc6393_scr __iomem *scr;	/* system configuration reg	*/
+
+	struct resource		rscr;	/* system config reg resource	*/
+	struct resource*	iomem;	/* entire TC6393 iomem resource	*/
+	unsigned int		irq;	/* hardware cascade irq		*/
+
+	struct tmio_device	tdev [TC6393_NUM_CELLS];
+};
+
+/*--------------------------------------------------------------------------*/
+
+static u32 tc6393_ioread32 (const void __iomem *addr)
+{
+	return ((u32) ioread16 (addr)) | (((u32) ioread16 (addr + 2)) << 16);
+}
+
+static u32 tc6393_iowrite32 (u32 val, const void __iomem *addr)
+{
+	iowrite16 (val,		addr);
+	iowrite16 (val >> 16,	addr + 2);
+	return val;
+}
+
+u32 get_tc6393_gpio (struct device *dev)
+{
+	struct tc6393*			tc6393	= dev_get_drvdata (dev);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+
+	return tc6393_ioread32 (scr->gpo_dsr);
+}
+EXPORT_SYMBOL (get_tc6393_gpio);
+
+u32 set_tc6393_gpio (struct device *dev, u32 bits)
+{
+	struct tc6393*			tc6393	= dev_get_drvdata (dev);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	unsigned long			flags;
+	u32				dsr;
+
+	spin_lock_irqsave (&tc6393->lock, flags);
+	dsr = tc6393_ioread32 (scr->gpo_dsr) | bits;
+	tc6393_iowrite32 (dsr, scr->gpo_dsr);
+	spin_unlock_irqrestore (&tc6393->lock, flags);
+
+	return dsr;
+}
+EXPORT_SYMBOL (set_tc6393_gpio);
+
+u32 reset_tc6393_gpio (struct device *dev, u32 bits)
+{
+	struct tc6393*			tc6393	= dev_get_drvdata (dev);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	unsigned long			flags;
+	u32				dsr;
+
+	spin_lock_irqsave (&tc6393->lock, flags);
+	dsr = tc6393_ioread32 (scr->gpo_dsr) & ~bits;
+	tc6393_iowrite32 (dsr, scr->gpo_dsr);
+	spin_unlock_irqrestore (&tc6393->lock, flags);
+
+	return dsr;
+}
+EXPORT_SYMBOL (reset_tc6393_gpio);
+
+/*--------------------------------------------------------------------------*/
+
+static void
+tc6393_irq (unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+{
+	struct tc6393*			tc6393	= get_irq_chipdata (irq);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	unsigned int			isr;
+	unsigned int			bit;
+	unsigned int			i;
+
+	desc->chip->ack (irq);
+
+	while ((isr = ioread8(&scr->isr) & ~ioread8(&scr->imr)))
+		for (bit = 1, i = IRQ_TC6393_START; i <= IRQ_TC6393_LCD;
+								bit <<= 1, i++)
+			if (isr & bit)
+				desc_handle_irq (i, irq_desc + i, regs);
+}
+
+static void tc6393_irq_ack (unsigned int irq)
+{
+}
+
+static void tc6393_irq_mask (unsigned int irq)
+{
+	struct tc6393*			tc6393	= get_irq_chipdata (irq);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	unsigned long			flags;
+
+	spin_lock_irqsave (&tc6393->lock, flags);
+	iowrite8 (ioread8 (&scr->imr) | (1 << (irq - IRQ_TC6393_START)),
+								&scr->imr);
+	spin_unlock_irqrestore (&tc6393->lock, flags);
+}
+
+static void tc6393_irq_unmask (unsigned int irq)
+{
+	struct tc6393*			tc6393	= get_irq_chipdata (irq);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	unsigned long			flags;
+
+	spin_lock_irqsave (&tc6393->lock, flags);
+	iowrite8 (ioread8 (&scr->imr) & ~(1 << (irq - IRQ_TC6393_START)),
+								&scr->imr);
+	spin_unlock_irqrestore (&tc6393->lock, flags);
+}
+
+static struct irqchip tc6393_chip = {
+	.ack	= tc6393_irq_ack,
+	.mask	= tc6393_irq_mask,
+	.unmask	= tc6393_irq_unmask,
+};
+
+static void tc6393_attach_irq (struct tc6393 *tc6393)
+{
+	unsigned int		irq;
+
+	for (irq = IRQ_TC6393_START; irq <= IRQ_TC6393_LCD; irq++) {
+		set_irq_chip	(irq, &tc6393_chip);
+		set_irq_chipdata(irq, tc6393);
+		set_irq_handler	(irq, do_edge_IRQ);
+		set_irq_flags	(irq, IRQF_VALID | IRQF_PROBE);
+	}
+
+	set_irq_type		(tc6393->irq, IRQT_FALLING);
+	set_irq_chipdata	(tc6393->irq, tc6393);
+	set_irq_chained_handler	(tc6393->irq, tc6393_irq);
+}
+
+static void tc6393_detach_irq (struct tc6393 *tc6393)
+{
+	unsigned int		irq;
+
+	set_irq_chained_handler	(tc6393->irq, NULL);
+	set_irq_chipdata	(tc6393->irq, NULL);
+
+	for (irq = IRQ_TC6393_START; irq <= IRQ_TC6393_LCD; irq++) {
+		set_irq_flags	(irq, 0);
+		set_irq_chip	(irq, NULL);
+		set_irq_chipdata(irq, NULL);
+	}
+}
+
+/*--------------------------------------------------------------------------*/
+
+static int tc6393_bus_match (struct device *dev, struct device_driver *drv)
+{
+	struct tmio_device*		tdev	= dev_to_tdev (dev);
+	const struct tc6393_cell*	cell	= tdev->soc_data;
+
+	return !strcmp (cell->name, drv->name);
+}
+
+static int tc6393_bus_suspend (struct device *dev, pm_message_t state)
+{
+	struct device_driver*	drv	= dev->driver;
+	return drv && drv->suspend ? drv->suspend (dev, state) : 0;
+}
+
+static int tc6393_bus_resume (struct device *dev)
+{
+	struct device_driver*	drv	= dev->driver;
+	return drv && drv->resume ? drv->resume (dev) : 0;
+}
+
+struct bus_type tc6393_bus_type = {
+	.name		= TMIO_NAME_BUS,
+	.match		= tc6393_bus_match,
+	.suspend	= tc6393_bus_suspend,
+	.resume		= tc6393_bus_resume,
+};
+EXPORT_SYMBOL (tc6393_bus_type);
+
+/*--------------------------------------------------------------------------*/
+
+static void tc6393_cell_clock (struct device *dev, int enable)
+{
+	struct tmio_device*		tdev	= dev_to_tdev (dev);
+	const struct tc6393_cell*	cell	= tdev->soc_data;
+	struct tc6393*			tc6393	= dev_get_drvdata (dev->parent);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	union tc6393_scr_ccr		ccr;
+	unsigned long			flags;
+
+	spin_lock_irqsave (&tc6393->lock, flags);
+	ccr.raw = ioread16 (&scr->ccr);
+
+	switch (cell->id) {
+		case TC6393_CELL_SD:	ccr.ck32ken	= enable;	break;
+		case TC6393_CELL_OHCI:	ccr.usbcken	= enable;	break;
+		case TC6393_CELL_LCD:
+			ccr.mclksel = enable ? m48MHz : disable;
+			break;
+	}
+
+	printk (KERN_DEBUG TMIO_NAME_CORE ": scr->ccr = %04x\n", ccr.raw);
+
+	iowrite16(ccr.raw, &scr->ccr);
+	spin_unlock_irqrestore (&tc6393->lock, flags);
+}
+
+static void tc6393_cell_function (struct device *dev, int enable)
+{
+	struct tmio_device*		tdev	= dev_to_tdev (dev);
+	const struct tc6393_cell*	cell	= tdev->soc_data;
+	struct tc6393*			tc6393	= dev_get_drvdata (dev->parent);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	union tc6393_scr_fer		fer;
+	unsigned long			flags;
+
+	if (cell->id == TC6393_CELL_NAND) {
+		if (enable) {
+			/* SMD buffer on */
+			printk (KERN_DEBUG TMIO_NAME_CORE ": SMD buffer on\n");
+			iowrite8 (0xff, scr->gpi_bcr + 1);
+		}
+		return;
+	}
+
+	spin_lock_irqsave (&tc6393->lock, flags);
+	fer.raw = ioread16 (&scr->fer);
+
+	switch (cell->id) {
+		case TC6393_CELL_OHCI:	fer.usben	= enable;	break;
+		case TC6393_CELL_LCD:	fer.slcden	= enable;	break;
+	}
+
+	printk (KERN_DEBUG TMIO_NAME_CORE ": scr->fer = %02x\n", fer.raw);
+
+	iowrite8 (fer.raw, &scr->fer);
+	spin_unlock_irqrestore (&tc6393->lock, flags);
+}
+
+static void
+tc6393_lcd_mode (struct device *dev, const struct fb_videomode *mode)
+{
+	struct tc6393*			tc6393	= dev_get_drvdata (dev->parent);
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+
+	iowrite16 (mode->pixclock,		scr->pll1cr + 0);
+	iowrite16 (mode->pixclock >> 16,	scr->pll1cr + 1);
+}
+
+static struct tmio_cell_ops tc6393_cell_ops = {
+	.clock		= tc6393_cell_clock,
+	.function	= tc6393_cell_function,
+	.lcd_mode	= tc6393_lcd_mode,
+};
+
+static void tc6393_device_release (struct device *dev)
+{
+}
+
+static int
+tc6393_device_register (struct tc6393 *tc6393, struct tmio_cell *tcell)
+{
+	const struct tc6393_cell*	cell;
+	struct tmio_device*		tdev;
+	struct device*			dev;
+	int				i;
+
+	for (i = 0; strcmp (tcell->name, tc6393_cell [i].name); )
+		if (++i >= ARRAY_SIZE(tc6393_cell))
+			return -EINVAL;
+
+	cell			= tc6393_cell  + i;
+	tdev			= tc6393->tdev + i;
+	dev			= &tdev->dev;
+
+	tdev->ops		= &tc6393_cell_ops;
+	tdev->iomem		= tc6393->iomem;
+	tdev->soc_data		= (void*) cell;
+
+	dev->parent		= tc6393->dev;
+	strncpy (dev->bus_id, cell->name, sizeof dev->bus_id);
+	dev->bus		= &tc6393_bus_type;
+	dev->dma_mask		= tc6393->dev->dma_mask;
+	dev->coherent_dma_mask	= tc6393->dev->coherent_dma_mask;
+	dev->release		= tc6393_device_release;
+	dev->platform_data	= tcell->platform_data;
+
+	for (i=0; i < cell->num_resources; i++) {
+		const struct resource*	cr	= cell->resource + i;
+		struct resource*	dr	= tdev->resource + i;
+
+		dr->name	= cr->name;
+		dr->start	= cr->start;
+		dr->end		= cr->end;
+		dr->flags	= cr->flags;
+
+		/* convert memory offsets to absolutes */
+		if (cr->flags & IORESOURCE_MEM) {
+			dr->start	+= tc6393->iomem->start;
+			dr->end		+= tc6393->iomem->start;
+		}
+	}
+
+	return device_register (dev);
+}
+
+/*--------------------------------------------------------------------------*/
+
+static void tc6393_hw_init (struct tc6393 *tc6393)
+{
+	struct tc6393_scr __iomem *	scr	= tc6393->scr;
+	struct tc6393_platform_data*	tcpd	= tc6393->dev->platform_data;
+
+	tcpd->enable (tc6393->dev);
+
+	iowrite8 (0,				&scr->fer);
+	iowrite16(tcpd->scr_pll2cr,		&scr->pll2cr);
+	iowrite16(tcpd->scr_ccr,		&scr->ccr);
+	iowrite16(tcpd->scr_mcr,		&scr->mcr);
+	iowrite16(tcpd->scr_gper,		&scr->gper);
+	iowrite8 (0,				&scr->irr);
+	iowrite8 (0xbf,				&scr->imr);
+	iowrite16(tcpd->scr_gpo_dsr,		scr->gpo_dsr + 0);
+	iowrite16(tcpd->scr_gpo_dsr >> 16,	scr->gpo_dsr + 1);
+	iowrite16(tcpd->scr_gpo_doecr,		scr->gpo_doecr + 0);
+	iowrite16(tcpd->scr_gpo_doecr >> 16,	scr->gpo_doecr + 1);
+}
+
+static int tc6393_probe (struct device *dev)
+{
+	struct platform_device*		pdev	= to_platform_device (dev);
+	struct tc6393_platform_data*	tcpd	= dev->platform_data;
+	struct tc6393*			tc6393;
+	struct resource*		iomem;
+	struct resource*		rscr;
+	int				retval;
+	int				i;
+
+	iomem = platform_get_resource (pdev, IORESOURCE_MEM, 0);
+	if (!iomem)
+		return -EINVAL;
+
+	tc6393 = kzalloc (sizeof *tc6393, GFP_KERNEL);
+	if (!tc6393) {
+		retval = -ENOMEM;
+		goto err_kzalloc;
+	}
+
+	dev_set_drvdata (dev, tc6393);
+	spin_lock_init (&tc6393->lock);
+	tc6393->dev	= dev;
+	tc6393->iomem	= iomem;
+	tc6393->irq	= platform_get_irq (pdev, 0);
+
+	rscr		= &tc6393->rscr;
+	rscr->name	= TMIO_NAME_CORE;
+	rscr->start	= iomem->start;
+	rscr->end	= iomem->start + 0xff;
+	rscr->flags	= IORESOURCE_MEM;
+
+	retval = request_resource (iomem, rscr);
+	if (retval)
+		goto err_request_scr;
+
+	tc6393->scr	= ioremap (rscr->start, rscr->end - rscr->start + 1);
+	if (!tc6393->scr) {
+		retval = -ENOMEM;
+		goto err_ioremap;
+	}
+
+	tc6393_hw_init (tc6393);
+
+	printk (KERN_INFO "Toshiba %s revision %d at 0x%08lx, irq %d\n",
+			TMIO_SOC_NAME, ioread8 (&tc6393->scr->revid),
+			iomem->start, tc6393->irq);
+
+	if (tc6393->irq)
+		tc6393_attach_irq (tc6393);
+
+	for (i = 0; i < tcpd->num_cells; i++)
+		tc6393_device_register (tc6393, tcpd->cell + i);
+
+	return 0;
+
+err_ioremap:
+	release_resource (rscr);
+err_request_scr:
+	kfree(tc6393);
+err_kzalloc:
+	release_resource (iomem);
+	return retval;
+}
+
+static int tc6393_dev_remove (struct device *dev, void *data)
+{
+	device_unregister (dev);
+	return 0;
+}
+
+static int tc6393_remove (struct device *dev)
+{
+	struct tc6393*		tc6393	= dev_get_drvdata (dev);
+
+	device_for_each_child (dev, tc6393, tc6393_dev_remove);
+
+	if (tc6393->irq)
+		tc6393_detach_irq (tc6393);
+
+	iounmap (tc6393->scr);
+	release_resource (&tc6393->rscr);
+	release_resource (tc6393->iomem);
+	kfree (tc6393);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int tc6393_suspend (struct device *dev, pm_message_t state)
+{
+	struct tc6393_platform_data*	tcpd	= dev->platform_data;
+	tcpd->disable (dev);
+	return 0;
+}
+
+static int tc6393_resume (struct device *dev)
+{
+	struct tc6393*			tc6393	= dev_get_drvdata (dev);
+	tc6393_hw_init (tc6393);
+	return 0;
+}
+#endif
+
+static struct device_driver tc6393_device_driver = {
+	.name		= TMIO_SOC_NAME,
+	.bus		= &platform_bus_type,
+	.probe		= tc6393_probe,
+	.remove		= tc6393_remove,
+#ifdef CONFIG_PM
+	.suspend	= tc6393_suspend,
+	.resume		= tc6393_resume,
+#endif
+};
+
+/*--------------------------------------------------------------------------*/
+
+static int __init tc6393_init (void)
+{
+	int retval = bus_register (&tc6393_bus_type);
+	if (retval)
+		return retval;
+
+	return driver_register (&tc6393_device_driver);
+}
+
+static void __exit tc6393_exit (void)
+{
+	driver_unregister (&tc6393_device_driver);
+	bus_unregister (&tc6393_bus_type);
+}
+
+module_init (tc6393_init);
+module_exit (tc6393_exit);
+
+MODULE_DESCRIPTION ("TC6393 SoC bus driver");
+MODULE_AUTHOR ("Chris Humbert, Dirk Opfer");
+MODULE_LICENSE ("GPL");
Index: linux-2.6.18/arch/arm/common/Kconfig
===================================================================
--- linux-2.6.18.orig/arch/arm/common/Kconfig	2006-09-20 05:42:06.000000000 +0200
+++ linux-2.6.18/arch/arm/common/Kconfig	2006-09-20 16:17:02.000000000 +0200
@@ -31,3 +31,6 @@
 
 config SHARP_SCOOP
 	bool
+
+config TOSHIBA_TC6393XB
+	bool
Index: linux-2.6.18/arch/arm/mach-pxa/Kconfig
===================================================================
--- linux-2.6.18.orig/arch/arm/mach-pxa/Kconfig	2006-09-20 16:16:58.000000000 +0200
+++ linux-2.6.18/arch/arm/mach-pxa/Kconfig	2006-09-20 16:17:02.000000000 +0200
@@ -128,6 +128,7 @@
 config MACH_TOSA
 	bool "Enable Sharp SL-6000x (Tosa) Support"
 	depends PXA_SHARPSL_25x
+	select TOSHIBA_TC6393XB
 
 config PXA25x
 	bool
Index: linux-2.6.18/arch/arm/common/Makefile
===================================================================
--- linux-2.6.18.orig/arch/arm/common/Makefile	2006-09-20 05:42:06.000000000 +0200
+++ linux-2.6.18/arch/arm/common/Makefile	2006-09-20 16:17:35.000000000 +0200
@@ -17,3 +17,4 @@
 obj-$(CONFIG_SHARP_SCOOP)	+= scoop.o
 obj-$(CONFIG_ARCH_IXP2000)	+= uengine.o
 obj-$(CONFIG_ARCH_IXP23XX)	+= uengine.o
+obj-$(CONFIG_TOSHIBA_TC6393XB)	+= tc6393xb.o
Index: linux-2.6.18/include/asm-arm/hardware/tmio.h
===================================================================
--- linux-2.6.18.orig/include/asm-arm/hardware/tmio.h	2006-09-20 16:17:02.000000000 +0200
+++ linux-2.6.18/include/asm-arm/hardware/tmio.h	2006-09-20 16:17:02.000000000 +0200
@@ -91,6 +91,50 @@
 
 /*--------------------------------------------------------------------------*/
 
+/*
+ * TC6393XB SoC
+ */
+#ifdef CONFIG_TOSHIBA_TC6393XB
+#define TMIO_SOC_TC6393XB
+#define TMIO_SOC_NAME			"TC6393XB"
+#define TMIO_NAME_BUS			"tc6393-bus"
+#define TMIO_NAME_CORE			"tc6393-core"
+#define TMIO_NAME_NAND			"tc6393-nand"
+#define TMIO_NAME_SD			"tc6393-sd"
+#define TMIO_NAME_OHCI			"tc6393-ohci"
+#define TMIO_NAME_SERIAL		"tc6393-serial"
+#define TMIO_NAME_LCD			"tc6393-lcd"
+#define tmio_bus_type			tc6393_bus_type
+
+#define TC6393_GPIO(x)			(1 << (x))
+
+extern struct bus_type tc6393_bus_type;
+
+struct tc6393_platform_data {
+	u16	scr_pll2cr;		/* PLL2 Control			*/
+	u16	scr_ccr;		/* Clock Control		*/
+	u16	scr_mcr;		/* Mode Control			*/
+	u16	scr_gper;		/* GP Enable			*/
+	u32	scr_gpo_doecr;		/* GPO Data OE Control		*/
+	u32	scr_gpo_dsr;		/* GPO Data Set			*/
+
+	/* cells to register as devices */
+	struct tmio_cell*		cell;
+	unsigned int			num_cells;
+
+	/* callbacks to enable and disable the TC6393XB's power and clock */
+	void (*enable)	(struct device *dev);
+	void (*disable)	(struct device *dev);
+};
+
+u32	get_tc6393_gpio		(struct device *dev);
+u32	set_tc6393_gpio		(struct device *dev, u32 bits);
+u32	reset_tc6393_gpio	(struct device *dev, u32 bits);
+
+/*--------------------------------------------------------------------------*/
+
+#else
 #error "no TMIO SoC configured"
+#endif
 
 #endif
Index: linux-2.6.18/include/asm-arm/arch-pxa/irqs.h
===================================================================
--- linux-2.6.18.orig/include/asm-arm/arch-pxa/irqs.h	2006-09-20 05:42:06.000000000 +0200
+++ linux-2.6.18/include/asm-arm/arch-pxa/irqs.h	2006-09-20 16:17:02.000000000 +0200
@@ -163,17 +163,27 @@
 #define IRQ_LOCOMO_SPI_OVRN	(IRQ_BOARD_END + 20)
 #define IRQ_LOCOMO_SPI_TEND	(IRQ_BOARD_END + 21)
 
+#define IRQ_TC6393_START	(IRQ_BOARD_END)
+#define IRQ_TC6393_NAND		(IRQ_BOARD_END + 0)
+#define IRQ_TC6393_SD		(IRQ_BOARD_END + 1)
+#define IRQ_TC6393_OHCI		(IRQ_BOARD_END + 2)
+#define IRQ_TC6393_SERIAL	(IRQ_BOARD_END + 3)
+#define IRQ_TC6393_LCD		(IRQ_BOARD_END + 4)
+
 /*
  * Figure out the MAX IRQ number.
  *
  * If we have an SA1111, the max IRQ is S1_BVD1_STSCHG+1.
  * If we have an LoCoMo, the max IRQ is IRQ_LOCOMO_SPI_TEND+1
+ * If we have an TC6393XB, the max IRQ is IRQ_TC6393_LCD+1
  * Otherwise, we have the standard IRQs only.
  */
 #ifdef CONFIG_SA1111
 #define NR_IRQS			(IRQ_S1_BVD1_STSCHG + 1)
 #elif defined(CONFIG_SHARP_LOCOMO)
 #define NR_IRQS			(IRQ_LOCOMO_SPI_TEND + 1)
+#elif defined(CONFIG_TOSHIBA_TC6393XB)
+#define NR_IRQS			(IRQ_TC6393_LCD + 1)
 #elif defined(CONFIG_ARCH_LUBBOCK) || \
       defined(CONFIG_MACH_LOGICPD_PXA270) || \
       defined(CONFIG_MACH_MAINSTONE)