[rdc] forward port r18254 to 2.6.30

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18276 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 538 insertions, 0 deletions

diff --git a/target/linux/rdc/files-2.6.30/arch/x86/include/asm/mach-rdc321x/gpio.h b/target/linux/rdc/files-2.6.30/arch/x86/include/asm/mach-rdc321x/gpio.h
new file mode 100644
index 000000000..873bffe30
--- /dev/null
+++ b/target/linux/rdc/files-2.6.30/arch/x86/include/asm/mach-rdc321x/gpio.h
@@ -0,0 +1,59 @@
+#ifndef _ASM_X86_MACH_RDC321X_GPIO_H
+#define _ASM_X86_MACH_RDC321X_GPIO_H
+
+#include <linux/kernel.h>
+
+extern int rdc_gpio_get_value(unsigned gpio);
+extern void rdc_gpio_set_value(unsigned gpio, int value);
+extern int rdc_gpio_direction_input(unsigned gpio);
+extern int rdc_gpio_direction_output(unsigned gpio, int value);
+extern int rdc_gpio_request(unsigned gpio, const char *label);
+extern void rdc_gpio_free(unsigned gpio);
+
+/* Wrappers for the arch-neutral GPIO API */
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+	return rdc_gpio_request(gpio, label);
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+	might_sleep();
+	rdc_gpio_free(gpio);
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+	return rdc_gpio_direction_input(gpio);
+}
+
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+	return rdc_gpio_direction_output(gpio, value);
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	return rdc_gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	rdc_gpio_set_value(gpio, value);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return gpio;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return irq;
+}
+
+/* For cansleep */
+#include <asm-generic/gpio.h>
+
+#endif /* _ASM_X86_MACH_RDC321X_GPIO_H */
diff --git a/target/linux/rdc/files-2.6.30/arch/x86/include/asm/mach-rdc321x/rdc321x_defs.h b/target/linux/rdc/files-2.6.30/arch/x86/include/asm/mach-rdc321x/rdc321x_defs.h
new file mode 100644
index 000000000..c8e9c8bed
--- /dev/null
+++ b/target/linux/rdc/files-2.6.30/arch/x86/include/asm/mach-rdc321x/rdc321x_defs.h
@@ -0,0 +1,12 @@
+#define PFX	"rdc321x: "
+
+/* General purpose configuration and data registers */
+#define RDC3210_CFGREG_ADDR     0x0CF8
+#define RDC3210_CFGREG_DATA     0x0CFC
+
+#define RDC321X_GPIO_CTRL_REG1	0x48
+#define RDC321X_GPIO_CTRL_REG2	0x84
+#define RDC321X_GPIO_DATA_REG1	0x4c
+#define RDC321X_GPIO_DATA_REG2	0x88
+
+#define RDC321X_MAX_GPIO	58
diff --git a/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/Makefile b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/Makefile
new file mode 100644
index 000000000..8325b4ca4
--- /dev/null
+++ b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the RDC321x specific parts of the kernel
+#
+obj-$(CONFIG_X86_RDC321X)        := gpio.o platform.o
+
diff --git a/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/gpio.c b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/gpio.c
new file mode 100644
index 000000000..c7eff5d2c
--- /dev/null
+++ b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/gpio.c
@@ -0,0 +1,198 @@
+/*
+ *  GPIO support for RDC SoC R3210/R8610
+ *
+ *  Copyright (C) 2007, Florian Fainelli <florian@openwrt.org>
+ *  Copyright (C) 2008, Volker Weiss <dev@tintuc.de>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/module.h>
+
+#include <asm/mach-rdc321x/gpio.h>
+#include <asm/mach-rdc321x/rdc321x_defs.h>
+
+
+/* spin lock to protect our private copy of GPIO data register plus
+   the access to PCI conf registers. */
+static DEFINE_SPINLOCK(gpio_lock);
+
+/* copy of GPIO data registers */
+static u32 gpio_data_reg1;
+static u32 gpio_data_reg2;
+
+static u32 gpio_request_data[2];
+
+
+static inline void rdc321x_conf_write(unsigned addr, u32 value)
+{
+	outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR);
+	outl(value, RDC3210_CFGREG_DATA);
+}
+
+static inline void rdc321x_conf_or(unsigned addr, u32 value)
+{
+	outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR);
+	value |= inl(RDC3210_CFGREG_DATA);
+	outl(value, RDC3210_CFGREG_DATA);
+}
+
+static inline u32 rdc321x_conf_read(unsigned addr)
+{
+	outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR);
+
+	return inl(RDC3210_CFGREG_DATA);
+}
+
+/* configure pin as GPIO */
+static void rdc321x_configure_gpio(unsigned gpio)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+	rdc321x_conf_or(gpio < 32
+		? RDC321X_GPIO_CTRL_REG1 : RDC321X_GPIO_CTRL_REG2,
+		1 << (gpio & 0x1f));
+	spin_unlock_irqrestore(&gpio_lock, flags);
+}
+
+/* initially setup the 2 copies of the gpio data registers.
+   This function is called before the platform setup code. */
+static int __init rdc321x_gpio_setup(void)
+{
+	/* this might not be, what others (BIOS, bootloader, etc.)
+	   wrote to these registers before, but it's a good guess. Still
+	   better than just using 0xffffffff. */
+
+	gpio_data_reg1 = rdc321x_conf_read(RDC321X_GPIO_DATA_REG1);
+	gpio_data_reg2 = rdc321x_conf_read(RDC321X_GPIO_DATA_REG2);
+
+	return 0;
+}
+
+/* determine, if gpio number is valid */
+static inline int rdc321x_is_gpio(unsigned gpio)
+{
+	return gpio <= RDC321X_MAX_GPIO;
+}
+
+/* request GPIO */
+int rdc_gpio_request(unsigned gpio, const char *label)
+{
+	unsigned long flags;
+
+	if (!rdc321x_is_gpio(gpio))
+		return -EINVAL;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+	if (gpio_request_data[(gpio & 0x20) ? 1 : 0] & (1 << (gpio & 0x1f)))
+		goto inuse;
+	gpio_request_data[(gpio & 0x20) ? 1 : 0] |= (1 << (gpio & 0x1f));
+	spin_unlock_irqrestore(&gpio_lock, flags);
+
+	return 0;
+inuse:
+	spin_unlock_irqrestore(&gpio_lock, flags);
+	return -EINVAL;
+}
+EXPORT_SYMBOL(rdc_gpio_request);
+
+/* release previously-claimed GPIO */
+void rdc_gpio_free(unsigned gpio)
+{
+	unsigned long flags;
+
+	if (!rdc321x_is_gpio(gpio))
+		return;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+	gpio_request_data[(gpio & 0x20) ? 1 : 0] &= ~(1 << (gpio & 0x1f));
+	spin_unlock_irqrestore(&gpio_lock, flags);
+}
+EXPORT_SYMBOL(rdc_gpio_free);
+
+/* read GPIO pin */
+int rdc_gpio_get_value(unsigned gpio)
+{
+	u32 reg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&gpio_lock, flags);
+	reg = rdc321x_conf_read(gpio < 32
+		? RDC321X_GPIO_DATA_REG1 : RDC321X_GPIO_DATA_REG2);
+	spin_unlock_irqrestore(&gpio_lock, flags);
+
+	return (1 << (gpio & 0x1f)) & reg ? 1 : 0;
+}
+EXPORT_SYMBOL(rdc_gpio_get_value);
+
+/* set GPIO pin to value */
+void rdc_gpio_set_value(unsigned gpio, int value)
+{
+	unsigned long flags;
+	u32 reg;
+
+	reg = 1 << (gpio & 0x1f);
+	if (gpio < 32) {
+		spin_lock_irqsave(&gpio_lock, flags);
+		if (value)
+			gpio_data_reg1 |= reg;
+		else
+			gpio_data_reg1 &= ~reg;
+		rdc321x_conf_write(RDC321X_GPIO_DATA_REG1, gpio_data_reg1);
+		spin_unlock_irqrestore(&gpio_lock, flags);
+	} else {
+		spin_lock_irqsave(&gpio_lock, flags);
+		if (value)
+			gpio_data_reg2 |= reg;
+		else
+			gpio_data_reg2 &= ~reg;
+		rdc321x_conf_write(RDC321X_GPIO_DATA_REG2, gpio_data_reg2);
+		spin_unlock_irqrestore(&gpio_lock, flags);
+	}
+}
+EXPORT_SYMBOL(rdc_gpio_set_value);
+
+/* configure GPIO pin as input */
+int rdc_gpio_direction_input(unsigned gpio)
+{
+	if (!rdc321x_is_gpio(gpio))
+		return -EINVAL;
+
+	rdc321x_configure_gpio(gpio);
+
+	return 0;
+}
+EXPORT_SYMBOL(rdc_gpio_direction_input);
+
+/* configure GPIO pin as output and set value */
+int rdc_gpio_direction_output(unsigned gpio, int value)
+{
+	if (!rdc321x_is_gpio(gpio))
+		return -EINVAL;
+
+	gpio_set_value(gpio, value);
+	rdc321x_configure_gpio(gpio);
+
+	return 0;
+}
+EXPORT_SYMBOL(rdc_gpio_direction_output);
+
+arch_initcall(rdc321x_gpio_setup);
diff --git a/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/platform.c b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/platform.c
new file mode 100644
index 000000000..9eb08c8dd
--- /dev/null
+++ b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/platform.c
@@ -0,0 +1,264 @@
+/*
+ *  Generic RDC321x platform devices
+ *
+ *  Copyright (C) 2007-2008 OpenWrt.org
+ *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *  Copyright (C) 2008 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
+ *
+ *  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 <linux/version.h>
+#include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/physmap.h>
+#include <linux/root_dev.h>
+
+#include <asm/mach-rdc321x/gpio.h>
+
+/* Flash */
+#ifdef CONFIG_MTD_R8610
+#define CONFIG_MTD_RDC3210 1
+#elif defined CONFIG_MTD_RDC3210
+static struct resource rdc_flash_resource[] = {
+	[0] = {
+		.start = (u32)-CONFIG_MTD_RDC3210_SIZE,
+		.end = (u32)-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,
+};
+#else
+static struct mtd_partition rdc_flash_parts[15];
+
+static struct resource rdc_flash_resource = {
+	.end = (u32)-1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data rdc_flash_data = {
+	.parts = rdc_flash_parts,
+};
+
+static struct platform_device rdc_flash_device = {
+	.name = "physmap-flash",
+	.id = -1,
+	.resource = &rdc_flash_resource,
+	.num_resources = 1,
+	.dev.platform_data = &rdc_flash_data,
+};
+#endif
+
+/* LEDS */
+static struct gpio_led default_leds[] = {
+	{ .name = "rdc321x:dmz", .gpio = 1, },
+};
+
+static struct gpio_led_platform_data rdc321x_led_data = {
+	.num_leds = ARRAY_SIZE(default_leds),
+	.leds = default_leds,
+};
+
+static struct platform_device rdc321x_leds = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &rdc321x_led_data,
+	}
+};
+
+/* Watchdog */
+static struct platform_device rdc321x_wdt = {
+	.name = "rdc321x-wdt",
+	.id = -1,
+	.num_resources = 0,
+};
+
+/* Button */
+static struct gpio_keys_button rdc321x_gpio_btn[] = {
+	{
+		.gpio = 0,
+		.code = BTN_0,
+		.desc = "Reset",
+		.active_low = 1,
+	}
+};
+
+static struct gpio_keys_platform_data rdc321x_gpio_btn_data = {
+	.buttons = rdc321x_gpio_btn,
+	.nbuttons = ARRAY_SIZE(rdc321x_gpio_btn),
+};
+
+static struct platform_device rdc321x_button = {
+	.name = "gpio-keys",
+	.id = -1,
+	.dev = {
+		.platform_data = &rdc321x_gpio_btn_data,
+	}
+};
+
+static struct platform_device *rdc321x_devs[] = {
+	&rdc_flash_device,
+	&rdc321x_leds,
+	&rdc321x_wdt,
+	&rdc321x_button,
+};
+
+static int probe_flash_start(struct map_info *the_map)
+{
+	struct mtd_info *res;
+
+	the_map->virt = ioremap(the_map->phys, the_map->size);
+	if (the_map->virt == NULL)
+		return 1;
+	for (the_map->bankwidth = 32; the_map->bankwidth; the_map->bankwidth
+			>>= 1) {
+		res = do_map_probe("cfi_probe", the_map);
+		if (res == NULL)
+			res = do_map_probe("jedec_probe", the_map);
+		if (res != NULL)
+			break;
+	}
+	iounmap(the_map->virt);
+	if (res != NULL)
+		the_map->phys = (u32)-(s32)(the_map->size = res->size);
+	return res == NULL;
+}
+
+static int __init rdc_board_setup(void)
+{
+#ifndef CONFIG_MTD_RDC3210
+	struct map_info rdc_map_info;
+	u32 the_header[4];
+
+	ROOT_DEV = 0;
+	rdc_map_info.name = rdc_flash_device.name;
+	rdc_map_info.phys = 0xff000000;
+	rdc_map_info.size = 0x1000000;
+	rdc_map_info.bankwidth = 2;
+	rdc_map_info.set_vpp = NULL;
+	simple_map_init(&rdc_map_info);
+	while (probe_flash_start(&rdc_map_info)) {
+		rdc_map_info.phys++;
+		if (--rdc_map_info.size)
+			panic("Could not find start of flash!");
+	}
+	rdc_flash_resource.start = rdc_map_info.phys;
+	rdc_flash_data.width = rdc_map_info.bankwidth;
+	rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys, 0x10);
+	if (rdc_map_info.virt == NULL)
+		panic("Could not ioremap to read device magic!");
+	the_header[0] = ((u32 *)rdc_map_info.virt)[0];
+	the_header[1] = ((u32 *)rdc_map_info.virt)[1];
+	the_header[2] = ((u32 *)rdc_map_info.virt)[2];
+	the_header[3] = ((u32 *)rdc_map_info.virt)[3];
+	iounmap(rdc_map_info.virt);
+	if (!memcmp(the_header, "GMTK", 4)) {	/* Gemtek */
+		/* TODO */
+	} else if (!memcmp(the_header, "CSYS", 4)) {	/* Sitecom */
+		/* TODO */
+	} else if (!memcmp(((u8 *)the_header) + 14, "Li", 2)) {	/* AMIT */
+		rdc_flash_parts[0].name = "kernel_parthdr";
+		rdc_flash_parts[0].offset = 0;
+		rdc_flash_parts[0].size = 0x10;
+		rdc_flash_parts[1].name = "kernel";
+		rdc_flash_parts[1].offset = 0x10;
+		rdc_flash_parts[1].size = 0xffff0;
+		rdc_flash_parts[2].name = "rootfs_parthdr";
+		rdc_flash_parts[2].offset = 0x100000;
+		rdc_flash_parts[2].size = 0x10;
+		rdc_flash_parts[3].name = "rootfs";
+		rdc_flash_parts[3].offset = 0x100010;
+		rdc_flash_parts[3].size = rdc_map_info.size - 0x160010;
+		rdc_flash_parts[4].name = "config_parthdr";
+		rdc_flash_parts[4].offset = rdc_map_info.size - 0x60000;
+		rdc_flash_parts[4].size = 0x10;
+		rdc_flash_parts[5].name = "config";
+		rdc_flash_parts[5].offset = rdc_map_info.size - 0x5fff0;
+		rdc_flash_parts[5].size = 0xfff0;
+		rdc_flash_parts[6].name = "recoveryfs_parthdr";
+		rdc_flash_parts[6].offset = rdc_map_info.size - 0x50000;
+		rdc_flash_parts[6].size = 0x10;
+		rdc_flash_parts[7].name = "recoveryfs";
+		rdc_flash_parts[7].offset = rdc_map_info.size - 0x4fff0;
+		rdc_flash_parts[7].size = 0x3fff0;
+		rdc_flash_parts[8].name = "recovery_parthdr";
+		rdc_flash_parts[8].offset = rdc_map_info.size - 0x10000;
+		rdc_flash_parts[8].size = 0x10;
+		rdc_flash_parts[9].name = "recovery";
+		rdc_flash_parts[9].offset = rdc_map_info.size - 0xfff0;
+		rdc_flash_parts[9].size = 0x7ff0;
+		rdc_flash_parts[10].name = "productinfo_parthdr";
+		rdc_flash_parts[10].offset = rdc_map_info.size - 0x8000;
+		rdc_flash_parts[10].size = 0x10;
+		rdc_flash_parts[11].name = "productinfo";
+		rdc_flash_parts[11].offset = rdc_map_info.size - 0x7ff0;
+		rdc_flash_parts[11].size = 0x1ff0;
+		rdc_flash_parts[12].name = "bootloader_parthdr";
+		rdc_flash_parts[12].offset = rdc_map_info.size - 0x6000;
+		rdc_flash_parts[12].size = 0x10;
+		rdc_flash_parts[13].name = "bootloader";
+		rdc_flash_parts[13].offset = rdc_map_info.size - 0x5ff0;
+		rdc_flash_parts[13].size = 0x5ff0;
+		rdc_flash_parts[14].name = "everything";
+		rdc_flash_parts[14].offset = 0;
+		rdc_flash_parts[14].size = rdc_map_info.size;
+		rdc_flash_data.nr_parts = 15;
+	} else {	/* ZyXEL */
+		rdc_flash_parts[0].name = "kernel";
+		rdc_flash_parts[0].offset = 0;
+		rdc_flash_parts[0].size = 0x100000;
+		rdc_flash_parts[1].name = "rootfs";
+		rdc_flash_parts[1].offset = 0x100000;
+		rdc_flash_parts[1].size = rdc_map_info.size - 0x140000;
+		rdc_flash_parts[2].name = "linux";
+		rdc_flash_parts[2].offset = 0;
+		rdc_flash_parts[2].size = rdc_map_info.size - 0x40000;
+		rdc_flash_parts[3].name = "config";
+		rdc_flash_parts[3].offset = rdc_map_info.size - 0x40000;
+		rdc_flash_parts[3].size = 0x10000;
+		rdc_flash_parts[4].name = "productinfo";
+		rdc_flash_parts[4].offset = rdc_map_info.size - 0x30000;
+		rdc_flash_parts[4].size = 0x10000;
+		rdc_flash_parts[5].name = "bootloader";
+		rdc_flash_parts[5].offset = rdc_map_info.size - 0x20000;
+		rdc_flash_parts[5].size = 0x20000;
+		rdc_flash_data.nr_parts = 6;
+	}
+#endif
+	return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
+}
+
+#ifdef CONFIG_MTD_RDC3210
+arch_initcall(rdc_board_setup);
+#else
+late_initcall(rdc_board_setup);
+#endif