Commit f024ff10 authored by Dmitry Eremin-Solenikov's avatar Dmitry Eremin-Solenikov Committed by Russell King
Browse files

[ARM] 5128/1: tc6393xb: tmio-nand support 



Signed-off-by: default avatarDmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent aa613de6

drivers/mfd/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ config HTC_PASIC3 
config MFD_TC6393XB

	bool "Support Toshiba TC6393XB"

	depends on HAVE_GPIO_LIB

	select MFD_CORE

	help

	  Support for Toshiba Mobile IO Controller TC6393XB

drivers/mfd/tc6393xb.c

+63 −0
Original line number Diff line number Diff line
@@ -21,6 +21,8 @@ 
#include <linux/platform_device.h>

#include <linux/fb.h>

#include <linux/clk.h>

#include <linux/mfd/core.h>

#include <linux/mfd/tmio.h>

#include <linux/mfd/tc6393xb.h>

#include <linux/gpio.h>
@@ -108,6 +110,59 @@ struct tc6393xb { 
	int			irq_base;

};



enum {

	TC6393XB_CELL_NAND,

};



/*--------------------------------------------------------------------------*/



static int tc6393xb_nand_enable(struct platform_device *nand)

{

	struct platform_device *dev = to_platform_device(nand->dev.parent);

	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);

	unsigned long flags;



	spin_lock_irqsave(&tc6393xb->lock, flags);



	/* SMD buffer on */

	dev_dbg(&dev->dev, "SMD buffer on\n");

	iowrite8(0xff, tc6393xb->scr + SCR_GPI_BCR(1));



	spin_unlock_irqrestore(&tc6393xb->lock, flags);



	return 0;

}



static struct resource __devinitdata tc6393xb_nand_resources[] = {

	{

		.name	= TMIO_NAND_CONFIG,

		.start	= 0x0100,

		.end	= 0x01ff,

		.flags	= IORESOURCE_MEM,

	},

	{

		.name	= TMIO_NAND_CONTROL,

		.start	= 0x1000,

		.end	= 0x1007,

		.flags	= IORESOURCE_MEM,

	},

	{

		.name	= TMIO_NAND_IRQ,

		.start	= IRQ_TC6393_NAND,

		.end	= IRQ_TC6393_NAND,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct mfd_cell __devinitdata tc6393xb_cells[] = {

	[TC6393XB_CELL_NAND] = {

		.name = "tmio-nand",

		.enable = tc6393xb_nand_enable,

		.num_resources = ARRAY_SIZE(tc6393xb_nand_resources),

		.resources = tc6393xb_nand_resources,

	},

};



/*--------------------------------------------------------------------------*/



static int tc6393xb_gpio_get(struct gpio_chip *chip,
@@ -410,6 +465,12 @@ static int __devinit tc6393xb_probe(struct platform_device *dev) 
	if (tc6393xb->irq)

		tc6393xb_attach_irq(dev);



	tc6393xb_cells[TC6393XB_CELL_NAND].driver_data = tcpd->nand_data;



	retval = mfd_add_devices(dev,

			tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),

			iomem, tcpd->irq_base);



	return 0;



	if (tc6393xb->irq)
@@ -440,6 +501,8 @@ static int __devexit tc6393xb_remove(struct platform_device *dev) 
	struct tc6393xb *tc6393xb = platform_get_drvdata(dev);

	int ret;



	mfd_remove_devices(dev);



	if (tc6393xb->irq)

		tc6393xb_detach_irq(dev);

include/linux/mfd/tc6393xb.h

+2 −0
Original line number Diff line number Diff line
@@ -31,6 +31,8 @@ struct tc6393xb_platform_data { 


	int	irq_base;	/* a base for cascaded irq */

	int	gpio_base;



	struct tmio_nand_data	*nand_data;

};



/*

include/linux/mfd/tmio.h

0 → 100644
+17 −0
Original line number Diff line number Diff line 
#ifndef MFD_TMIO_H

#define MFD_TMIO_H



/*

 * data for the NAND controller

 */

struct tmio_nand_data {

	struct nand_bbt_descr	*badblock_pattern;

	struct mtd_partition	*partition;

	unsigned int		num_partitions;

};



#define TMIO_NAND_CONFIG	"tmio-nand-config"

#define TMIO_NAND_CONTROL	"tmio-nand-control"

#define TMIO_NAND_IRQ		"tmio-nand"



#endif