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Commit d039c5b9 authored by Benoit Cousson's avatar Benoit Cousson
Browse files

ARM: OMAP2+: l3-noc: Add support for device-tree 



Add device-tree support for the l3-noc driver.

Use platform_driver_register to defer the probing at device init
time.

Add documentation for the l3-noc bindings.

Signed-off-by: default avatarBenoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
parent a7cbb9b1

Documentation/devicetree/bindings/arm/omap/l3-noc.txt

0 → 100644
+19 −0
Original line number Diff line number Diff line 
* TI - L3 Network On Chip (NoC)



This version is an implementation of the generic NoC IP

provided by Arteris.



Required properties:

- compatible : Should be "ti,omap3-l3-smx" for OMAP3 family

               Should be "ti,omap4-l3-noc" for OMAP4 family

- ti,hwmods: "l3_main_1", ... One hwmod for each noc domain.



Examples:



ocp {

	compatible = "ti,omap4-l3-noc", "simple-bus";

	#address-cells = <1>;

	#size-cells = <1>;

	ranges;

	ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";

};

arch/arm/mach-omap2/omap_l3_noc.c

+19 −6
Original line number Diff line number Diff line
@@ -127,7 +127,7 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3) 
	return IRQ_HANDLED;

}



static int __init omap4_l3_probe(struct platform_device *pdev)

static int __devinit omap4_l3_probe(struct platform_device *pdev)

{

	static struct omap4_l3 *l3;

	struct resource	*res;
@@ -218,7 +218,7 @@ err0: 
	return ret;

}



static int __exit omap4_l3_remove(struct platform_device *pdev)

static int __devexit omap4_l3_remove(struct platform_device *pdev)

{

	struct omap4_l3 *l3 = platform_get_drvdata(pdev);
@@ -232,16 +232,29 @@ static int __exit omap4_l3_remove(struct platform_device *pdev) 
	return 0;

}



#if defined(CONFIG_OF)

static const struct of_device_id l3_noc_match[] = {

	{.compatible = "ti,omap4-l3-noc", },

	{},

}

MODULE_DEVICE_TABLE(of, l3_noc_match);

#else

#define l3_noc_match NULL

#endif



static struct platform_driver omap4_l3_driver = {

	.remove	= __exit_p(omap4_l3_remove),

	.probe		= omap4_l3_probe,

	.remove		= __devexit_p(omap4_l3_remove),

	.driver		= {

		.name		= "omap_l3_noc",

		.owner		= THIS_MODULE,

		.of_match_table = l3_noc_match,

	},

};



static int __init omap4_l3_init(void)

{

	return platform_driver_probe(&omap4_l3_driver, omap4_l3_probe);

	return platform_driver_register(&omap4_l3_driver);

}

postcore_initcall_sync(omap4_l3_init);