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Commit 144aa3db authored by Herbert Valerio Riedel's avatar Herbert Valerio Riedel Committed by Russell King
Browse files

[ARM] Orion: I2C support 



The Orion I2C controller is the same one used in the Discovery
family (MV643XX). This patch include the common platform_device
stuff according to the existing i2c_mv64xxx.c conventions.

Signed-off-by: default avatarHerbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: default avatarTzachi Perelstein <tzachi@marvell.com>
parent 2f0a8df4

arch/arm/mach-orion/common.c

+38 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
#include <linux/platform_device.h>

#include <linux/serial_8250.h>

#include <linux/mv643xx_eth.h>

#include <linux/mv643xx_i2c.h>

#include <asm/page.h>

#include <asm/timex.h>

#include <asm/mach/map.h>
@@ -212,6 +213,42 @@ void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data) 
	platform_device_register(&orion_eth);

}



/*****************************************************************************

 * I2C controller

 * (The Orion and Discovery (MV643xx) families share the same I2C controller)

 ****************************************************************************/



static struct mv64xxx_i2c_pdata orion_i2c_pdata = {

	.freq_m		= 8, /* assumes 166 MHz TCLK */

	.freq_n		= 3,

	.timeout	= 1000, /* Default timeout of 1 second */

};



static struct resource orion_i2c_resources[] = {

	{

		.name   = "i2c base",

		.start  = I2C_BASE,

		.end    = I2C_BASE + 0x20 -1,

		.flags  = IORESOURCE_MEM,

	},

	{

		.name   = "i2c irq",

		.start  = IRQ_ORION_I2C,

		.end    = IRQ_ORION_I2C,

		.flags  = IORESOURCE_IRQ,

	},

};



static struct platform_device orion_i2c = {

	.name		= MV64XXX_I2C_CTLR_NAME,

	.id		= 0,

	.num_resources	= ARRAY_SIZE(orion_i2c_resources),

	.resource	= orion_i2c_resources,

	.dev		= {

		.platform_data = &orion_i2c_pdata,

	},

};



/*****************************************************************************

 * General

 ****************************************************************************/
@@ -274,4 +311,5 @@ void __init orion_init(void) 
	platform_device_register(&orion_ehci0);

	if (dev == MV88F5182_DEV_ID)

		platform_device_register(&orion_ehci1);

	platform_device_register(&orion_i2c);

}