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

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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: Benoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
Benoit Cousson 2011-08-12 13:52:50 +02:00
parent a7cbb9b15d
commit d039c5b9fb
2 changed files with 38 additions and 6 deletions
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19
Documentation/devicetree/bindings/arm/omap/l3-noc.txt Normal file
View File

@ -0,0 +1,19 @@
* 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";
};

25
arch/arm/mach-omap2/omap_l3_noc.c
View File

@ -127,7 +127,7 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
return IRQ_HANDLED; 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; static struct omap4_l3 *l3;
struct resource *res; struct resource *res;
@ -218,7 +218,7 @@ err0:
return ret; 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); struct omap4_l3 *l3 = platform_get_drvdata(pdev);
@ -232,16 +232,29 @@ static int __exit omap4_l3_remove(struct platform_device *pdev)
return 0; 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 = { static struct platform_driver omap4_l3_driver = {
.remove = __exit_p(omap4_l3_remove), .probe = omap4_l3_probe,
.driver = { .remove = __devexit_p(omap4_l3_remove),
.name = "omap_l3_noc", .driver = {
.name = "omap_l3_noc",
.owner = THIS_MODULE,
.of_match_table = l3_noc_match,
}, },
}; };
static int __init omap4_l3_init(void) 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); postcore_initcall_sync(omap4_l3_init);