summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/wd_timer.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2/wd_timer.c')
-rw-r--r--arch/arm/mach-omap2/wd_timer.c40
1 files changed, 36 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index b2f1c67043a2..7c2b4ed38f02 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -1,6 +1,8 @@
/*
* OMAP2+ MPU WD_TIMER-specific code
*
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -11,10 +13,14 @@
#include <linux/io.h>
#include <linux/err.h>
-#include <plat/omap_hwmod.h>
+#include <linux/platform_data/omap-wd-timer.h>
+#include "omap_hwmod.h"
+#include "omap_device.h"
#include "wd_timer.h"
#include "common.h"
+#include "prm.h"
+#include "soc.h"
/*
* In order to avoid any assumptions from bootloader regarding WDT
@@ -26,9 +32,6 @@
#define OMAP_WDT_WPS 0x34
#define OMAP_WDT_SPR 0x48
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
int omap2_wd_timer_disable(struct omap_hwmod *oh)
{
void __iomem *base;
@@ -99,3 +102,32 @@ int omap2_wd_timer_reset(struct omap_hwmod *oh)
return (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT :
omap2_wd_timer_disable(oh);
}
+
+static int __init omap_init_wdt(void)
+{
+ int id = -1;
+ struct platform_device *pdev;
+ struct omap_hwmod *oh;
+ char *oh_name = "wd_timer2";
+ char *dev_name = "omap_wdt";
+ struct omap_wd_timer_platform_data pdata;
+
+ if (!cpu_class_is_omap2() || of_have_populated_dt())
+ return 0;
+
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("Could not look up wd_timer%d hwmod\n", id);
+ return -EINVAL;
+ }
+
+ pdata.read_reset_sources = prm_read_reset_sources;
+
+ pdev = omap_device_build(dev_name, id, oh, &pdata,
+ sizeof(struct omap_wd_timer_platform_data),
+ NULL, 0, 0);
+ WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
+ dev_name, oh->name);
+ return 0;
+}
+subsys_initcall(omap_init_wdt);