From 58df34b5e14d82d43c76c1c7140a04e515297261 Mon Sep 17 00:00:00 2001 From: Jo-Philipp Wich Date: Mon, 22 Aug 2016 17:35:47 +0200 Subject: gemini: drop Linux 4.1 support Signed-off-by: Jo-Philipp Wich --- .../110-watchdog-add-gemini_wdt-driver.patch | 410 --------------------- 1 file changed, 410 deletions(-) delete mode 100644 target/linux/gemini/patches-4.1/110-watchdog-add-gemini_wdt-driver.patch (limited to 'target/linux/gemini/patches-4.1/110-watchdog-add-gemini_wdt-driver.patch') diff --git a/target/linux/gemini/patches-4.1/110-watchdog-add-gemini_wdt-driver.patch b/target/linux/gemini/patches-4.1/110-watchdog-add-gemini_wdt-driver.patch deleted file mode 100644 index 3b767ae632..0000000000 --- a/target/linux/gemini/patches-4.1/110-watchdog-add-gemini_wdt-driver.patch +++ /dev/null @@ -1,410 +0,0 @@ ---- /dev/null -+++ b/drivers/watchdog/gemini_wdt.c -@@ -0,0 +1,378 @@ -+/* -+ * Watchdog driver for Cortina Systems Gemini SoC -+ * -+ * Copyright (C) 2009 Paulius Zaleckas -+ * -+ * 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 -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#define GEMINI_WDCOUNTER 0x0 -+#define GEMINI_WDLOAD 0x4 -+#define GEMINI_WDRESTART 0x8 -+ -+#define WDRESTART_MAGIC 0x5AB9 -+ -+#define GEMINI_WDCR 0xC -+ -+#define WDCR_CLOCK_5MHZ (1 << 4) -+#define WDCR_SYS_RST (1 << 1) -+#define WDCR_ENABLE (1 << 0) -+ -+#define WDT_CLOCK 5000000 /* 5 MHz */ -+#define WDT_DEFAULT_TIMEOUT 13 -+#define WDT_MAX_TIMEOUT (0xFFFFFFFF / WDT_CLOCK) -+ -+/* status bits */ -+#define WDT_ACTIVE 0 -+#define WDT_OK_TO_CLOSE 1 -+ -+static unsigned int timeout = WDT_DEFAULT_TIMEOUT; -+static int nowayout = WATCHDOG_NOWAYOUT; -+ -+static DEFINE_SPINLOCK(gemini_wdt_lock); -+ -+static struct platform_device *gemini_wdt_dev; -+ -+struct gemini_wdt_struct { -+ struct resource *res; -+ struct device *dev; -+ void __iomem *base; -+ unsigned long status; -+}; -+ -+static struct watchdog_info gemini_wdt_info = { -+ .identity = "Gemini watchdog", -+ .options = WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING | -+ WDIOF_SETTIMEOUT, -+}; -+ -+/* Disable the watchdog. */ -+static void gemini_wdt_stop(struct gemini_wdt_struct *gemini_wdt) -+{ -+ spin_lock(&gemini_wdt_lock); -+ -+ __raw_writel(0, gemini_wdt->base + GEMINI_WDCR); -+ -+ clear_bit(WDT_ACTIVE, &gemini_wdt->status); -+ -+ spin_unlock(&gemini_wdt_lock); -+} -+ -+/* Service the watchdog */ -+static void gemini_wdt_service(struct gemini_wdt_struct *gemini_wdt) -+{ -+ __raw_writel(WDRESTART_MAGIC, gemini_wdt->base + GEMINI_WDRESTART); -+} -+ -+/* Enable and reset the watchdog. */ -+static void gemini_wdt_start(struct gemini_wdt_struct *gemini_wdt) -+{ -+ spin_lock(&gemini_wdt_lock); -+ -+ __raw_writel(timeout * WDT_CLOCK, gemini_wdt->base + GEMINI_WDLOAD); -+ -+ gemini_wdt_service(gemini_wdt); -+ -+ /* set clock before enabling */ -+ __raw_writel(WDCR_CLOCK_5MHZ | WDCR_SYS_RST, -+ gemini_wdt->base + GEMINI_WDCR); -+ -+ __raw_writel(WDCR_CLOCK_5MHZ | WDCR_SYS_RST | WDCR_ENABLE, -+ gemini_wdt->base + GEMINI_WDCR); -+ -+ set_bit(WDT_ACTIVE, &gemini_wdt->status); -+ -+ spin_unlock(&gemini_wdt_lock); -+} -+ -+/* Watchdog device is opened, and watchdog starts running. */ -+static int gemini_wdt_open(struct inode *inode, struct file *file) -+{ -+ struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(gemini_wdt_dev); -+ -+ if (test_bit(WDT_ACTIVE, &gemini_wdt->status)) -+ return -EBUSY; -+ -+ file->private_data = gemini_wdt; -+ -+ gemini_wdt_start(gemini_wdt); -+ -+ return nonseekable_open(inode, file); -+} -+ -+/* Close the watchdog device. */ -+static int gemini_wdt_close(struct inode *inode, struct file *file) -+{ -+ struct gemini_wdt_struct *gemini_wdt = file->private_data; -+ -+ /* Disable the watchdog if possible */ -+ if (test_bit(WDT_OK_TO_CLOSE, &gemini_wdt->status)) -+ gemini_wdt_stop(gemini_wdt); -+ else -+ dev_warn(gemini_wdt->dev, "Device closed unexpectedly - timer will not stop\n"); -+ -+ return 0; -+} -+ -+/* Handle commands from user-space. */ -+static long gemini_wdt_ioctl(struct file *file, unsigned int cmd, -+ unsigned long arg) -+{ -+ struct gemini_wdt_struct *gemini_wdt = file->private_data; -+ -+ int value; -+ -+ switch (cmd) { -+ case WDIOC_KEEPALIVE: -+ gemini_wdt_service(gemini_wdt); -+ return 0; -+ -+ case WDIOC_GETSUPPORT: -+ return copy_to_user((struct watchdog_info *)arg, &gemini_wdt_info, -+ sizeof(gemini_wdt_info)) ? -EFAULT : 0; -+ -+ case WDIOC_SETTIMEOUT: -+ if (get_user(value, (int *)arg)) -+ return -EFAULT; -+ -+ if ((value < 1) || (value > WDT_MAX_TIMEOUT)) -+ return -EINVAL; -+ -+ timeout = value; -+ -+ /* restart wdt to use new timeout */ -+ gemini_wdt_stop(gemini_wdt); -+ gemini_wdt_start(gemini_wdt); -+ -+ /* Fall through */ -+ case WDIOC_GETTIMEOUT: -+ return put_user(timeout, (int *)arg); -+ -+ case WDIOC_GETTIMELEFT: -+ value = __raw_readl(gemini_wdt->base + GEMINI_WDCOUNTER); -+ return put_user(value / WDT_CLOCK, (int *)arg); -+ -+ default: -+ return -ENOTTY; -+ } -+} -+ -+/* Refresh the watchdog whenever device is written to. */ -+static ssize_t gemini_wdt_write(struct file *file, const char *data, -+ size_t len, loff_t *ppos) -+{ -+ struct gemini_wdt_struct *gemini_wdt = file->private_data; -+ -+ if (len) { -+ if (!nowayout) { -+ size_t i; -+ -+ clear_bit(WDT_OK_TO_CLOSE, &gemini_wdt->status); -+ for (i = 0; i != len; i++) { -+ char c; -+ -+ if (get_user(c, data + i)) -+ return -EFAULT; -+ if (c == 'V') -+ set_bit(WDT_OK_TO_CLOSE, -+ &gemini_wdt->status); -+ } -+ } -+ gemini_wdt_service(gemini_wdt); -+ } -+ -+ return len; -+} -+ -+static const struct file_operations gemini_wdt_fops = { -+ .owner = THIS_MODULE, -+ .llseek = no_llseek, -+ .unlocked_ioctl = gemini_wdt_ioctl, -+ .open = gemini_wdt_open, -+ .release = gemini_wdt_close, -+ .write = gemini_wdt_write, -+}; -+ -+static struct miscdevice gemini_wdt_miscdev = { -+ .minor = WATCHDOG_MINOR, -+ .name = "watchdog", -+ .fops = &gemini_wdt_fops, -+}; -+ -+static void gemini_wdt_shutdown(struct platform_device *pdev) -+{ -+ struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev); -+ -+ gemini_wdt_stop(gemini_wdt); -+} -+ -+static int gemini_wdt_probe(struct platform_device *pdev) -+{ -+ int ret; -+ int res_size; -+ struct resource *res; -+ void __iomem *base; -+ struct gemini_wdt_struct *gemini_wdt; -+ unsigned int reg; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!res) { -+ dev_err(&pdev->dev, "can't get device resources\n"); -+ return -ENODEV; -+ } -+ -+ res_size = resource_size(res); -+ if (!request_mem_region(res->start, res_size, res->name)) { -+ dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n", -+ res_size, res->start); -+ return -ENOMEM; -+ } -+ -+ base = ioremap(res->start, res_size); -+ if (!base) { -+ dev_err(&pdev->dev, "ioremap failed\n"); -+ ret = -EIO; -+ goto fail0; -+ } -+ -+ gemini_wdt = kzalloc(sizeof(struct gemini_wdt_struct), GFP_KERNEL); -+ if (!gemini_wdt) { -+ dev_err(&pdev->dev, "can't allocate interface\n"); -+ ret = -ENOMEM; -+ goto fail1; -+ } -+ -+ /* Setup gemini_wdt driver structure */ -+ gemini_wdt->base = base; -+ gemini_wdt->res = res; -+ -+ /* Set up platform driver data */ -+ platform_set_drvdata(pdev, gemini_wdt); -+ gemini_wdt_dev = pdev; -+ -+ if (gemini_wdt_miscdev.parent) { -+ ret = -EBUSY; -+ goto fail2; -+ } -+ -+ gemini_wdt_miscdev.parent = &pdev->dev; -+ -+ reg = __raw_readw(gemini_wdt->base + GEMINI_WDCR); -+ if (reg & WDCR_ENABLE) { -+ /* Watchdog was enabled by the bootloader, disable it. */ -+ reg &= ~(WDCR_ENABLE); -+ __raw_writel(reg, gemini_wdt->base + GEMINI_WDCR); -+ } -+ -+ ret = misc_register(&gemini_wdt_miscdev); -+ if (ret) -+ goto fail2; -+ -+ return 0; -+ -+fail2: -+ platform_set_drvdata(pdev, NULL); -+ kfree(gemini_wdt); -+fail1: -+ iounmap(base); -+fail0: -+ release_mem_region(res->start, res_size); -+ -+ return ret; -+} -+ -+static int gemini_wdt_remove(struct platform_device *pdev) -+{ -+ struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev); -+ -+ platform_set_drvdata(pdev, NULL); -+ misc_deregister(&gemini_wdt_miscdev); -+ gemini_wdt_dev = NULL; -+ iounmap(gemini_wdt->base); -+ release_mem_region(gemini_wdt->res->start, resource_size(gemini_wdt->res)); -+ -+ kfree(gemini_wdt); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_PM -+static int gemini_wdt_suspend(struct platform_device *pdev, pm_message_t message) -+{ -+ struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev); -+ unsigned int reg; -+ -+ reg = __raw_readw(gemini_wdt->base + GEMINI_WDCR); -+ reg &= ~(WDCR_WDENABLE); -+ __raw_writel(reg, gemini_wdt->base + GEMINI_WDCR); -+ -+ return 0; -+} -+ -+static int gemini_wdt_resume(struct platform_device *pdev) -+{ -+ struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev); -+ unsigned int reg; -+ -+ if (gemini_wdt->status) { -+ reg = __raw_readw(gemini_wdt->base + GEMINI_WDCR); -+ reg |= WDCR_WDENABLE; -+ __raw_writel(reg, gemini_wdt->base + GEMINI_WDCR); -+ } -+ -+ return 0; -+} -+#else -+#define gemini_wdt_suspend NULL -+#define gemini_wdt_resume NULL -+#endif -+ -+static struct platform_driver gemini_wdt_driver = { -+ .probe = gemini_wdt_probe, -+ .remove = gemini_wdt_remove, -+ .shutdown = gemini_wdt_shutdown, -+ .suspend = gemini_wdt_suspend, -+ .resume = gemini_wdt_resume, -+ .driver = { -+ .name = "gemini-wdt", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init gemini_wdt_init(void) -+{ -+ return platform_driver_probe(&gemini_wdt_driver, gemini_wdt_probe); -+} -+ -+static void __exit gemini_wdt_exit(void) -+{ -+ platform_driver_unregister(&gemini_wdt_driver); -+} -+ -+module_init(gemini_wdt_init); -+module_exit(gemini_wdt_exit); -+ -+module_param(timeout, uint, 0); -+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds"); -+ -+module_param(nowayout, int, 0); -+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); -+ -+MODULE_AUTHOR("Paulius Zaleckas"); -+MODULE_DESCRIPTION("Watchdog driver for Gemini"); -+MODULE_LICENSE("GPL"); -+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -+MODULE_ALIAS("platform:gemini-wdt"); ---- a/drivers/watchdog/Kconfig -+++ b/drivers/watchdog/Kconfig -@@ -198,6 +198,16 @@ config 977_WATCHDOG - - Not sure? It's safe to say N. - -+config GEMINI_WATCHDOG -+ tristate "Gemini watchdog" -+ depends on ARCH_GEMINI -+ help -+ Say Y here if to include support for the watchdog timer -+ embedded in the Cortina Systems Gemini family of devices. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called gemini_wdt. -+ - config IXP4XX_WATCHDOG - tristate "IXP4xx Watchdog" - depends on ARCH_IXP4XX ---- a/drivers/watchdog/Makefile -+++ b/drivers/watchdog/Makefile -@@ -37,6 +37,7 @@ obj-$(CONFIG_OMAP_WATCHDOG) += omap_wdt. - obj-$(CONFIG_TWL4030_WATCHDOG) += twl4030_wdt.o - obj-$(CONFIG_21285_WATCHDOG) += wdt285.o - obj-$(CONFIG_977_WATCHDOG) += wdt977.o -+obj-$(CONFIG_GEMINI_WATCHDOG) += gemini_wdt.o - obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o - obj-$(CONFIG_KS8695_WATCHDOG) += ks8695_wdt.o - obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o -- cgit v1.2.3