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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-08-06 14:15:57 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-08-06 14:15:57 +0000
commit47ef8de2605ee325507e867ebb99bb3aade23f22 (patch)
tree6cacae14aefd2165449806a588da78bbea54ee72 /target/linux/rdc-2.6/files/arch/i386/mach-rdc
parent94040edc4564cd2419a4d0898fdece22d0d205ea (diff)
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
Diffstat (limited to 'target/linux/rdc-2.6/files/arch/i386/mach-rdc')
-rw-r--r--target/linux/rdc-2.6/files/arch/i386/mach-rdc/gpio.c81
-rw-r--r--target/linux/rdc-2.6/files/arch/i386/mach-rdc/platform.c73
2 files changed, 154 insertions, 0 deletions
diff --git a/target/linux/rdc-2.6/files/arch/i386/mach-rdc/gpio.c b/target/linux/rdc-2.6/files/arch/i386/mach-rdc/gpio.c
new file mode 100644
index 000000000..eadb15235
--- /dev/null
+++ b/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);
+
+
diff --git a/target/linux/rdc-2.6/files/arch/i386/mach-rdc/platform.c b/target/linux/rdc-2.6/files/arch/i386/mach-rdc/platform.c
new file mode 100644
index 000000000..aa245a052
--- /dev/null
+++ b/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);