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[WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support

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Add support for arch/powerpc, specifically for the prpmc2800 platform.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Dale Farnsworth
2007-07-24 11:12:24 -07:00
committed by Wim Van Sebroeck
parent 8a5cfa6483
commit 7e07a15913
5 changed files with 79 additions and 9 deletions
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64
arch/powerpc/sysdev/mv64x60_dev.c
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@@ -390,6 +390,61 @@ error:
return err;
}
/*
* Create mv64x60_wdt platform devices
*/
static int __init mv64x60_wdt_device_setup(struct device_node *np, int id)
{
struct resource r;
struct platform_device *pdev;
struct mv64x60_wdt_pdata pdata;
const unsigned int *prop;
int err;
err = of_address_to_resource(np, 0, &r);
if (err)
return err;
memset(&pdata, 0, sizeof(pdata));
prop = of_get_property(np, "timeout", NULL);
if (!prop)
return -ENODEV;
pdata.timeout = *prop;
np = of_get_parent(np);
if (!np)
return -ENODEV;
prop = of_get_property(np, "clock-frequency", NULL);
of_node_put(np);
if (!prop)
return -ENODEV;
pdata.bus_clk = *prop / 1000000; /* wdt driver wants freq in MHz */
pdev = platform_device_alloc(MV64x60_WDT_NAME, id);
if (!pdev)
return -ENOMEM;
err = platform_device_add_resources(pdev, &r, 1);
if (err)
goto error;
err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
if (err)
goto error;
err = platform_device_add(pdev);
if (err)
goto error;
return 0;
error:
platform_device_put(pdev);
return err;
}
static int __init mv64x60_device_setup(void)
{
struct device_node *np = NULL;
@@ -414,6 +469,15 @@ static int __init mv64x60_device_setup(void)
if ((err = mv64x60_i2c_device_setup(np, id)))
goto error;
/* support up to one watchdog timer */
np = of_find_compatible_node(np, NULL, "marvell,mv64x60-wdt");
if (np) {
if ((err = mv64x60_wdt_device_setup(np, id)))
goto error;
of_node_put(np);
}
return 0;
error: