MIPS: BCM63xx: Prepare for watchdog support

This patch prepares the board code to register a bcm63xx_wdt
platform_device that we are going to use in a subsequent patch.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index c146d1e..00064b6 100644 (file)
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,5 +1,5 @@
 obj-y          += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
-                  dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o
+                  dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o
 obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
 
 obj-y          += boards/

diff --git a/arch/mips/bcm63xx/dev-wdt.c b/arch/mips/bcm63xx/dev-wdt.c
new file mode 100644 (file)
index 0000000..3e6c716
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-wdt.c
@@ -0,0 +1,37 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+
+static struct resource wdt_resources[] = {
+       {
+               .start          = -1, /* filled at runtime */
+               .end            = -1, /* filled at runtime */
+               .flags          = IORESOURCE_MEM,
+       },
+};
+
+static struct platform_device bcm63xx_wdt_device = {
+       .name           = "bcm63xx-wdt",
+       .id             = 0,
+       .num_resources  = ARRAY_SIZE(wdt_resources),
+       .resource       = wdt_resources,
+};
+
+int __init bcm63xx_wdt_register(void)
+{
+       wdt_resources[0].start = bcm63xx_regset_address(RSET_WDT);
+       wdt_resources[0].end = wdt_resources[0].start;
+       wdt_resources[0].end += RSET_WDT_SIZE - 1;
+
+       return platform_device_register(&bcm63xx_wdt_device);
+}
+arch_initcall(bcm63xx_wdt_register);