Add generic gpio support to rdc, convert the led driver to be a platform driver, need to convert the flash driver as well

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8348 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/rdc-2.6/files/arch/i386/mach-rdc/gpio.c

@@ -0,0 +1,81 @@
+/*
+ *  Copyright (C) 2007, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ *  	RDC321x architecture specific GPIO support
+ *
+ *  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 (at your
+ *  option) any later version.
+ */
+
+#include <linux/autoconf.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#define RDC3210_CFGREG_ADDR     0x0CF8
+#define RDC3210_CFGREG_DATA     0x0CFC
+
+static unsigned int rdc_gpio_read(unsigned gpio)
+{
+	unsigned int val;
+
+	val = 0x80000000 | (7 << 11) | ((0x48));
+        outl(val, RDC3210_CFGREG_ADDR);
+        udelay(10);
+        val = inl(RDC3210_CFGREG_DATA);
+        val |= (0x1 << gpio);
+        outl(val, RDC3210_CFGREG_DATA);
+        udelay(10);
+        val = 0x80000000 | (7 << 11) | ((0x4C));
+        outl(val, RDC3210_CFGREG_ADDR);
+        udelay(10);
+        val = inl(RDC3210_CFGREG_DATA);
+
+	return val;
+}
+
+void rdc_gpio_write(unsigned int val)
+{
+	if (val) {
+		outl(val, RDC3210_CFGREG_DATA);
+		udelay(10);
+	}
+}
+
+int rdc_gpio_get_value(unsigned gpio)
+{
+	return ((int)rdc_gpio_read(gpio));
+}
+EXPORT_SYMBOL(rdc_gpio_get_value);
+
+void rdc_gpio_set_value(unsigned gpio, int value)
+{
+	unsigned int val;
+
+	val = rdc_gpio_read(gpio);
+
+	if (value)
+		val &= ~(0x1 << gpio);
+	else
+		val |= (0x1 << gpio);
+
+	rdc_gpio_write(val);
+}
+EXPORT_SYMBOL(rdc_gpio_set_value);
+
+int rdc_gpio_direction_input(unsigned gpio)
+{
+	return 0;
+}
+EXPORT_SYMBOL(rdc_gpio_direction_input);
+
+int rdc_gpio_direction_output(unsigned gpio, int value)
+{
+	return 0;
+}
+EXPORT_SYMBOL(rdc_gpio_direction_output);
+
+

target/linux/rdc-2.6/files/arch/i386/mach-rdc/platform.c

@@ -0,0 +1,73 @@
+/*
+ *  $Id: platform.c 8331 2007-08-03 15:59:23Z florian $
+ *
+ *  Generic RDC321x platform devices
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *
+ *  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 (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include <asm/gpio.h>
+#include <asm/mach-rdc/rdc321x_defs.h>
+
+/* FIXME : Flash */
+static struct resource rdc_flash_resource[] = {
+	[0] = {
+		.start = RDC_FLASH_BASE,
+		.end = RDC_FLASH_BASE+CONFIG_MTD_RDC3210_SIZE-1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device rdc_flash_device = {
+	.name = "rdc321x-flash",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(rdc_flash_resource),
+	.resource = rdc_flash_resource,
+};
+
+/* LEDS */
+static struct platform_device rdc321x_leds = {
+	.name = "rdc321x-leds",
+	.id = -1,
+	.num_resources = 0,
+};
+
+static int __init rdc_board_setup(void)
+{
+	int err;
+
+	err = platform_device_register(&rdc_flash_device);
+	if (err)
+		printk(KERN_ALERT "rdc321x: failed to register flash\n");
+
+	err = platform_device_register(&rdc321x_leds);
+	if (err)
+		printk(KERN_ALERT "rdc321x: failed to register LEDS\n");
+
+	return err; 
+}
+
+arch_initcall(rdc_board_setup);