ralink: update patches

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 37016

1 files changed, 0 insertions, 395 deletions

diff --git a/target/linux/ramips/patches-3.8/0137-watchdog-adds-ralink-wdt.patch b/target/linux/ramips/patches-3.8/0137-watchdog-adds-ralink-wdt.patch
deleted file mode 100644
index 3b7246f..0000000
--- a/target/linux/ramips/patches-3.8/0137-watchdog-adds-ralink-wdt.patch
+++ /dev/null
@@ -1,395 +0,0 @@
-From 14c1b064274d28cf88113a685c58374a515f3018 Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Mon, 22 Apr 2013 23:23:07 +0200
-Subject: [PATCH 137/137] watchdog: adds ralink wdt
-
-Adds the watchdog driver for ralink SoC.
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- drivers/watchdog/Kconfig      |    6 +
- drivers/watchdog/Makefile     |    1 +
- drivers/watchdog/ralink_wdt.c |  352 +++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 359 insertions(+)
- create mode 100644 drivers/watchdog/ralink_wdt.c
-
---- a/drivers/watchdog/Kconfig
-+++ b/drivers/watchdog/Kconfig
-@@ -1077,6 +1077,12 @@ config LANTIQ_WDT
- 	help
- 	  Hardware driver for the Lantiq SoC Watchdog Timer.
- 
-+config RALINK_WDT
-+	tristate "Ralink SoC watchdog"
-+	depends on RALINK
-+	help
-+	  Hardware driver for the Ralink SoC Watchdog Timer.
-+
- # PARISC Architecture
- 
- # POWERPC Architecture
---- a/drivers/watchdog/Makefile
-+++ b/drivers/watchdog/Makefile
-@@ -132,6 +132,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
- obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
- octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
- obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o
-+obj-$(CONFIG_RALINK_WDT) += ralink_wdt.o
- 
- # PARISC Architecture
- 
---- /dev/null
-+++ b/drivers/watchdog/ralink_wdt.c
-@@ -0,0 +1,352 @@
-+/*
-+ * Ralink RT288X/RT305X built-in hardware watchdog timer
-+ *
-+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
-+ *
-+ * This driver was based on: drivers/watchdog/ixp4xx_wdt.c
-+ *	Author: Deepak Saxena <dsaxena@plexity.net>
-+ *	Copyright 2004 (c) MontaVista, Software, Inc.
-+ *
-+ * which again was based on sa1100 driver,
-+ *	Copyright (C) 2000 Oleg Drokin <green@crimea.edu>
-+ *
-+ * parts of the driver are based on Ralink's 2.6.21 BSP
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 as published
-+ * by the Free Software Foundation.
-+ */
-+
-+#include <linux/bitops.h>
-+#include <linux/errno.h>
-+#include <linux/fs.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/miscdevice.h>
-+#include <linux/module.h>
-+#include <linux/moduleparam.h>
-+#include <linux/platform_device.h>
-+#include <linux/types.h>
-+#include <linux/watchdog.h>
-+#include <linux/clk.h>
-+#include <linux/err.h>
-+
-+#define DRIVER_NAME	"ralink-wdt"
-+
-+#define RALINK_WDT_TIMEOUT		30	/* seconds */
-+#define RALINK_WDT_PRESCALE		65536
-+
-+#define TIMER_REG_TMR1LOAD		0x00
-+#define TIMER_REG_TMR1CTL		0x08
-+
-+#define TMRSTAT_TMR1RST			BIT(5)
-+
-+#define TMR1CTL_ENABLE			BIT(7)
-+#define TMR1CTL_MODE_SHIFT		4
-+#define TMR1CTL_MODE_MASK		0x3
-+#define TMR1CTL_MODE_FREE_RUNNING	0x0
-+#define TMR1CTL_MODE_PERIODIC		0x1
-+#define TMR1CTL_MODE_TIMEOUT		0x2
-+#define TMR1CTL_MODE_WDT		0x3
-+#define TMR1CTL_PRESCALE_MASK		0xf
-+#define TMR1CTL_PRESCALE_65536		0xf
-+
-+static int nowayout = WATCHDOG_NOWAYOUT;
-+module_param(nowayout, int, 0);
-+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
-+			   "(default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-+
-+static int ralink_wdt_timeout = RALINK_WDT_TIMEOUT;
-+module_param_named(timeout, ralink_wdt_timeout, int, 0);
-+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, 0 means use maximum "
-+			  "(default=" __MODULE_STRING(RALINK_WDT_TIMEOUT) "s)");
-+
-+static unsigned long ralink_wdt_flags;
-+
-+#define WDT_FLAGS_BUSY		0
-+#define WDT_FLAGS_EXPECT_CLOSE	1
-+
-+static struct clk *ralink_wdt_clk;
-+static unsigned long ralink_wdt_freq;
-+static int ralink_wdt_max_timeout;
-+static void __iomem *ralink_wdt_base;
-+
-+static inline void rt_wdt_w32(unsigned reg, u32 val)
-+{
-+	__raw_writel(val, ralink_wdt_base + reg);
-+}
-+
-+static inline u32 rt_wdt_r32(unsigned reg)
-+{
-+	return __raw_readl(ralink_wdt_base + reg);
-+}
-+
-+static inline void ralink_wdt_keepalive(void)
-+{
-+	rt_wdt_w32(TIMER_REG_TMR1LOAD, ralink_wdt_timeout * ralink_wdt_freq);
-+}
-+
-+static inline void ralink_wdt_enable(void)
-+{
-+	u32 t;
-+
-+	ralink_wdt_keepalive();
-+
-+	t = rt_wdt_r32(TIMER_REG_TMR1CTL);
-+	t |= TMR1CTL_ENABLE;
-+	rt_wdt_w32(TIMER_REG_TMR1CTL, t);
-+}
-+
-+static inline void ralink_wdt_disable(void)
-+{
-+	u32 t;
-+
-+	ralink_wdt_keepalive();
-+
-+	t = rt_wdt_r32(TIMER_REG_TMR1CTL);
-+	t &= ~TMR1CTL_ENABLE;
-+	rt_wdt_w32(TIMER_REG_TMR1CTL, t);
-+}
-+
-+static int ralink_wdt_set_timeout(int val)
-+{
-+	if (val < 1 || val > ralink_wdt_max_timeout) {
-+		pr_warn(DRIVER_NAME
-+			": timeout value %d must be 0 < timeout <= %d, using %d\n",
-+			val, ralink_wdt_max_timeout, ralink_wdt_timeout);
-+		return -EINVAL;
-+	}
-+
-+	ralink_wdt_timeout = val;
-+	ralink_wdt_keepalive();
-+
-+	return 0;
-+}
-+
-+static int ralink_wdt_open(struct inode *inode, struct file *file)
-+{
-+	u32 t;
-+
-+	if (test_and_set_bit(WDT_FLAGS_BUSY, &ralink_wdt_flags))
-+		return -EBUSY;
-+
-+	clear_bit(WDT_FLAGS_EXPECT_CLOSE, &ralink_wdt_flags);
-+
-+	t = rt_wdt_r32(TIMER_REG_TMR1CTL);
-+	t &= ~(TMR1CTL_MODE_MASK << TMR1CTL_MODE_SHIFT |
-+	       TMR1CTL_PRESCALE_MASK);
-+	t |= (TMR1CTL_MODE_WDT << TMR1CTL_MODE_SHIFT |
-+	      TMR1CTL_PRESCALE_65536);
-+	rt_wdt_w32(TIMER_REG_TMR1CTL, t);
-+
-+	ralink_wdt_enable();
-+
-+	return nonseekable_open(inode, file);
-+}
-+
-+static int ralink_wdt_release(struct inode *inode, struct file *file)
-+{
-+	if (test_bit(WDT_FLAGS_EXPECT_CLOSE, &ralink_wdt_flags))
-+		ralink_wdt_disable();
-+	else {
-+		pr_crit(DRIVER_NAME ": device closed unexpectedly, "
-+			"watchdog timer will not stop!\n");
-+		ralink_wdt_keepalive();
-+	}
-+
-+	clear_bit(WDT_FLAGS_BUSY, &ralink_wdt_flags);
-+	clear_bit(WDT_FLAGS_EXPECT_CLOSE, &ralink_wdt_flags);
-+
-+	return 0;
-+}
-+
-+static ssize_t rt_wdt_w32ite(struct file *file, const char *data,
-+				size_t len, loff_t *ppos)
-+{
-+	if (len) {
-+		if (!nowayout) {
-+			size_t i;
-+
-+			clear_bit(WDT_FLAGS_EXPECT_CLOSE, &ralink_wdt_flags);
-+
-+			for (i = 0; i != len; i++) {
-+				char c;
-+
-+				if (get_user(c, data + i))
-+					return -EFAULT;
-+
-+				if (c == 'V')
-+					set_bit(WDT_FLAGS_EXPECT_CLOSE,
-+						&ralink_wdt_flags);
-+			}
-+		}
-+
-+		ralink_wdt_keepalive();
-+	}
-+
-+	return len;
-+}
-+
-+static const struct watchdog_info ralink_wdt_info = {
-+	.options		= WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
-+				  WDIOF_MAGICCLOSE,
-+	.firmware_version	= 0,
-+	.identity		= "RALINK watchdog",
-+};
-+
-+static long ralink_wdt_ioctl(struct file *file, unsigned int cmd,
-+			    unsigned long arg)
-+{
-+	void __user *argp = (void __user *)arg;
-+	int __user *p = argp;
-+	int err;
-+	int t;
-+
-+	switch (cmd) {
-+	case WDIOC_GETSUPPORT:
-+		err = copy_to_user(argp, &ralink_wdt_info,
-+				   sizeof(ralink_wdt_info)) ? -EFAULT : 0;
-+		break;
-+
-+	case WDIOC_GETSTATUS:
-+		err = put_user(0, p);
-+		break;
-+
-+	case WDIOC_KEEPALIVE:
-+		ralink_wdt_keepalive();
-+		err = 0;
-+		break;
-+
-+	case WDIOC_SETTIMEOUT:
-+		err = get_user(t, p);
-+		if (err)
-+			break;
-+
-+		err = ralink_wdt_set_timeout(t);
-+		if (err)
-+			break;
-+
-+		/* fallthrough */
-+	case WDIOC_GETTIMEOUT:
-+		err = put_user(ralink_wdt_timeout, p);
-+		break;
-+
-+	default:
-+		err = -ENOTTY;
-+		break;
-+	}
-+
-+	return err;
-+}
-+
-+static const struct file_operations ralink_wdt_fops = {
-+	.owner		= THIS_MODULE,
-+	.llseek		= no_llseek,
-+	.write		= rt_wdt_w32ite,
-+	.unlocked_ioctl	= ralink_wdt_ioctl,
-+	.open		= ralink_wdt_open,
-+	.release	= ralink_wdt_release,
-+};
-+
-+static struct miscdevice ralink_wdt_miscdev = {
-+	.minor = WATCHDOG_MINOR,
-+	.name = "watchdog",
-+	.fops = &ralink_wdt_fops,
-+};
-+
-+static int ralink_wdt_probe(struct platform_device *pdev)
-+{
-+	struct resource *res;
-+	int err;
-+
-+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	if (!res) {
-+		dev_err(&pdev->dev, "no memory resource found\n");
-+		return -EINVAL;
-+	}
-+
-+	ralink_wdt_base = ioremap(res->start, resource_size(res));
-+	if (!ralink_wdt_base)
-+		return -ENOMEM;
-+
-+	ralink_wdt_clk = clk_get(&pdev->dev, NULL);
-+	if (IS_ERR(ralink_wdt_clk)) {
-+		err = PTR_ERR(ralink_wdt_clk);
-+		goto err_unmap;
-+	}
-+
-+	err = clk_enable(ralink_wdt_clk);
-+	if (err)
-+		goto err_clk_put;
-+
-+	ralink_wdt_freq = clk_get_rate(ralink_wdt_clk) / RALINK_WDT_PRESCALE;
-+	if (!ralink_wdt_freq) {
-+		err = -EINVAL;
-+		goto err_clk_disable;
-+	}
-+
-+	ralink_wdt_max_timeout = (0xfffful / ralink_wdt_freq);
-+	if (ralink_wdt_timeout < 1 ||
-+	    ralink_wdt_timeout > ralink_wdt_max_timeout) {
-+		ralink_wdt_timeout = ralink_wdt_max_timeout;
-+		dev_info(&pdev->dev,
-+			"timeout value must be 0 < timeout <= %d, using %d\n",
-+			ralink_wdt_max_timeout, ralink_wdt_timeout);
-+	}
-+
-+	err = misc_register(&ralink_wdt_miscdev);
-+	if (err) {
-+		dev_err(&pdev->dev,
-+			"unable to register misc device, err=%d\n", err);
-+		goto err_clk_disable;
-+	}
-+
-+	return 0;
-+
-+err_clk_disable:
-+	clk_disable(ralink_wdt_clk);
-+err_clk_put:
-+	clk_put(ralink_wdt_clk);
-+err_unmap:
-+	iounmap(ralink_wdt_base);
-+	return err;
-+}
-+
-+static int ralink_wdt_remove(struct platform_device *pdev)
-+{
-+	misc_deregister(&ralink_wdt_miscdev);
-+	clk_disable(ralink_wdt_clk);
-+	clk_put(ralink_wdt_clk);
-+	iounmap(ralink_wdt_base);
-+	return 0;
-+}
-+
-+static void ralink_wdt_shutdown(struct platform_device *pdev)
-+{
-+	ralink_wdt_disable();
-+}
-+
-+static const struct of_device_id ralink_wdt_match[] = {
-+	{ .compatible = "ralink,rt2880-wdt" },
-+	{},
-+};
-+MODULE_DEVICE_TABLE(of, ralink_wdt_match);
-+
-+static struct platform_driver ralink_wdt_driver = {
-+	.probe		= ralink_wdt_probe,
-+	.remove		= ralink_wdt_remove,
-+	.shutdown	= ralink_wdt_shutdown,
-+	.driver		= {
-+		.name		= DRIVER_NAME,
-+		.owner		= THIS_MODULE,
-+		.of_match_table	= ralink_wdt_match,
-+	},
-+};
-+
-+module_platform_driver(ralink_wdt_driver);
-+
-+MODULE_DESCRIPTION("MediaTek/Ralink RT288X/RT305X hardware watchdog driver");
-+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org");
-+MODULE_LICENSE("GPL v2");
-+MODULE_ALIAS("platform:" DRIVER_NAME);
-+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);