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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-31 20:43:52 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-31 20:43:52 -0700
commit2f63251ed0a803ddbe7bf2577b69d467aa872f68 (patch)
tree960ba4e27bb2cffdda0841ee701515c4bd75143a /arch
parentd6dd9e93c7531fa31370e27d053a3940d8d662fb (diff)
parent647e50f38345525d8261c295a0d0629dcea23a9b (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: (28 commits) [WATCHDOG] Fix pcwd_init_module crash [WATCHDOG] ICH9 support for iTCO_wdt [WATCHDOG] 631xESB/632xESB support for iTCO_wdt - add all LPC bridges [WATCHDOG] 631xESB/632xESB support for iTCO_wdt [WATCHDOG] omap_wdt.c - default error for IOCTL is -ENOTTY [WATCHDOG] Return value of nonseekable_open [WATCHDOG] mv64x60_wdt: Rework the timeout register manipulation [WATCHDOG] mv64x60_wdt: disable watchdog timer when driver is probed [WATCHDOG] mv64x60_wdt: Support the WDIOF_MAGICCLOSE feature [WATCHDOG] mv64x60_wdt: Add a module parameter to change nowayout setting [WATCHDOG] mv64x60_wdt: Add WDIOC_SETOPTIONS ioctl support [WATCHDOG] mv64x60_wdt: Support for WDIOC_SETTIMEOUT ioctl [WATCHDOG] mv64x60_wdt: Fix WDIOC_GETTIMEOUT return value [WATCHDOG] mv64x60_wdt: Check return value of nonseekable_open [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support [WATCHDOG] mv64x60_wdt: Get register address from platform data [WATCHDOG] mv64x60_wdt: set up platform_device in platform code [WATCHDOG] ensure mouse and keyboard ignored in w83627hf_wdt [WATCHDOG] s3c2410_wdt: fixup after arch include moves [WATCHDOG] git-watchdog-typo ...
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/boot/dts/prpmc2800.dts6
-rw-r--r--arch/powerpc/sysdev/mv64x60_dev.c64
-rw-r--r--arch/ppc/syslib/mv64x60.c29
3 files changed, 99 insertions, 0 deletions
diff --git a/arch/powerpc/boot/dts/prpmc2800.dts b/arch/powerpc/boot/dts/prpmc2800.dts
index 699d0df574d5..5300b50cdc2f 100644
--- a/arch/powerpc/boot/dts/prpmc2800.dts
+++ b/arch/powerpc/boot/dts/prpmc2800.dts
@@ -207,6 +207,12 @@
interrupt-parent = <&/mv64x60/pic>;
};
+ wdt@b410 { /* watchdog timer */
+ compatible = "marvell,mv64x60-wdt";
+ reg = <b410 8>;
+ timeout = <a>; /* wdt timeout in seconds */
+ };
+
i2c@c000 {
device_type = "i2c";
compatible = "marvell,mv64x60-i2c";
diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index b618fa60aef3..548a32082e4a 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -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:
diff --git a/arch/ppc/syslib/mv64x60.c b/arch/ppc/syslib/mv64x60.c
index d212b1c418a9..2744b8a6f66a 100644
--- a/arch/ppc/syslib/mv64x60.c
+++ b/arch/ppc/syslib/mv64x60.c
@@ -441,6 +441,32 @@ static struct platform_device i2c_device = {
};
#endif
+#ifdef CONFIG_WATCHDOG
+static struct mv64x60_wdt_pdata mv64x60_wdt_pdata = {
+ .timeout = 10, /* default watchdog expiry in seconds */
+ .bus_clk = 133, /* default bus clock in MHz */
+};
+
+static struct resource mv64x60_wdt_resources[] = {
+ [0] = {
+ .name = "mv64x60 wdt base",
+ .start = MV64x60_WDT_WDC,
+ .end = MV64x60_WDT_WDC + 8 - 1, /* two 32-bit registers */
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device wdt_device = {
+ .name = MV64x60_WDT_NAME,
+ .id = 0,
+ .num_resources = ARRAY_SIZE(mv64x60_wdt_resources),
+ .resource = mv64x60_wdt_resources,
+ .dev = {
+ .platform_data = &mv64x60_wdt_pdata,
+ },
+};
+#endif
+
#if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
static struct mv64xxx_pdata mv64xxx_pdata = {
.hs_reg_valid = 0,
@@ -476,6 +502,9 @@ static struct platform_device *mv64x60_pd_devs[] __initdata = {
#ifdef CONFIG_I2C_MV64XXX
&i2c_device,
#endif
+#ifdef CONFIG_MV64X60_WDT
+ &wdt_device,
+#endif
#if defined(CONFIG_SYSFS) && !defined(CONFIG_GT64260)
&mv64xxx_device,
#endif