1*a636cd6cSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2aae03dc9SOleksij Rempel /* 3aae03dc9SOleksij Rempel * Watchdog driver for Alphascale ASM9260. 4aae03dc9SOleksij Rempel * 5aae03dc9SOleksij Rempel * Copyright (c) 2014 Oleksij Rempel <linux@rempel-privat.de> 6aae03dc9SOleksij Rempel */ 7aae03dc9SOleksij Rempel 8aae03dc9SOleksij Rempel #include <linux/bitops.h> 9aae03dc9SOleksij Rempel #include <linux/clk.h> 10aae03dc9SOleksij Rempel #include <linux/delay.h> 11aae03dc9SOleksij Rempel #include <linux/interrupt.h> 12aae03dc9SOleksij Rempel #include <linux/io.h> 13aae03dc9SOleksij Rempel #include <linux/module.h> 14aae03dc9SOleksij Rempel #include <linux/of.h> 15aae03dc9SOleksij Rempel #include <linux/platform_device.h> 16aae03dc9SOleksij Rempel #include <linux/reset.h> 17aae03dc9SOleksij Rempel #include <linux/watchdog.h> 18aae03dc9SOleksij Rempel 19aae03dc9SOleksij Rempel #define CLOCK_FREQ 1000000 20aae03dc9SOleksij Rempel 21aae03dc9SOleksij Rempel /* Watchdog Mode register */ 22aae03dc9SOleksij Rempel #define HW_WDMOD 0x00 23aae03dc9SOleksij Rempel /* Wake interrupt. Set by HW, can't be cleared. */ 24aae03dc9SOleksij Rempel #define BM_MOD_WDINT BIT(3) 25aae03dc9SOleksij Rempel /* This bit set if timeout reached. Cleared by SW. */ 26aae03dc9SOleksij Rempel #define BM_MOD_WDTOF BIT(2) 27aae03dc9SOleksij Rempel /* HW Reset on timeout */ 28aae03dc9SOleksij Rempel #define BM_MOD_WDRESET BIT(1) 29aae03dc9SOleksij Rempel /* WD enable */ 30aae03dc9SOleksij Rempel #define BM_MOD_WDEN BIT(0) 31aae03dc9SOleksij Rempel 32aae03dc9SOleksij Rempel /* 33aae03dc9SOleksij Rempel * Watchdog Timer Constant register 34aae03dc9SOleksij Rempel * Minimal value is 0xff, the meaning of this value 35aae03dc9SOleksij Rempel * depends on used clock: T = WDCLK * (0xff + 1) * 4 36aae03dc9SOleksij Rempel */ 37aae03dc9SOleksij Rempel #define HW_WDTC 0x04 38aae03dc9SOleksij Rempel #define BM_WDTC_MAX(freq) (0x7fffffff / (freq)) 39aae03dc9SOleksij Rempel 40aae03dc9SOleksij Rempel /* Watchdog Feed register */ 41aae03dc9SOleksij Rempel #define HW_WDFEED 0x08 42aae03dc9SOleksij Rempel 43aae03dc9SOleksij Rempel /* Watchdog Timer Value register */ 44aae03dc9SOleksij Rempel #define HW_WDTV 0x0c 45aae03dc9SOleksij Rempel 46aae03dc9SOleksij Rempel #define ASM9260_WDT_DEFAULT_TIMEOUT 30 47aae03dc9SOleksij Rempel 48aae03dc9SOleksij Rempel enum asm9260_wdt_mode { 49aae03dc9SOleksij Rempel HW_RESET, 50aae03dc9SOleksij Rempel SW_RESET, 51aae03dc9SOleksij Rempel DEBUG, 52aae03dc9SOleksij Rempel }; 53aae03dc9SOleksij Rempel 54aae03dc9SOleksij Rempel struct asm9260_wdt_priv { 55aae03dc9SOleksij Rempel struct device *dev; 56aae03dc9SOleksij Rempel struct watchdog_device wdd; 57aae03dc9SOleksij Rempel struct clk *clk; 58aae03dc9SOleksij Rempel struct clk *clk_ahb; 59aae03dc9SOleksij Rempel struct reset_control *rst; 60aae03dc9SOleksij Rempel 61aae03dc9SOleksij Rempel void __iomem *iobase; 62aae03dc9SOleksij Rempel int irq; 63aae03dc9SOleksij Rempel unsigned long wdt_freq; 64aae03dc9SOleksij Rempel enum asm9260_wdt_mode mode; 65aae03dc9SOleksij Rempel }; 66aae03dc9SOleksij Rempel 67aae03dc9SOleksij Rempel static int asm9260_wdt_feed(struct watchdog_device *wdd) 68aae03dc9SOleksij Rempel { 69aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd); 70aae03dc9SOleksij Rempel 71aae03dc9SOleksij Rempel iowrite32(0xaa, priv->iobase + HW_WDFEED); 72aae03dc9SOleksij Rempel iowrite32(0x55, priv->iobase + HW_WDFEED); 73aae03dc9SOleksij Rempel 74aae03dc9SOleksij Rempel return 0; 75aae03dc9SOleksij Rempel } 76aae03dc9SOleksij Rempel 77aae03dc9SOleksij Rempel static unsigned int asm9260_wdt_gettimeleft(struct watchdog_device *wdd) 78aae03dc9SOleksij Rempel { 79aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd); 80aae03dc9SOleksij Rempel u32 counter; 81aae03dc9SOleksij Rempel 82aae03dc9SOleksij Rempel counter = ioread32(priv->iobase + HW_WDTV); 83aae03dc9SOleksij Rempel 84d94fa465SWolfram Sang return counter / priv->wdt_freq; 85aae03dc9SOleksij Rempel } 86aae03dc9SOleksij Rempel 87aae03dc9SOleksij Rempel static int asm9260_wdt_updatetimeout(struct watchdog_device *wdd) 88aae03dc9SOleksij Rempel { 89aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd); 90aae03dc9SOleksij Rempel u32 counter; 91aae03dc9SOleksij Rempel 92aae03dc9SOleksij Rempel counter = wdd->timeout * priv->wdt_freq; 93aae03dc9SOleksij Rempel 94aae03dc9SOleksij Rempel iowrite32(counter, priv->iobase + HW_WDTC); 95aae03dc9SOleksij Rempel 96aae03dc9SOleksij Rempel return 0; 97aae03dc9SOleksij Rempel } 98aae03dc9SOleksij Rempel 99aae03dc9SOleksij Rempel static int asm9260_wdt_enable(struct watchdog_device *wdd) 100aae03dc9SOleksij Rempel { 101aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd); 102aae03dc9SOleksij Rempel u32 mode = 0; 103aae03dc9SOleksij Rempel 104aae03dc9SOleksij Rempel if (priv->mode == HW_RESET) 105aae03dc9SOleksij Rempel mode = BM_MOD_WDRESET; 106aae03dc9SOleksij Rempel 107aae03dc9SOleksij Rempel iowrite32(BM_MOD_WDEN | mode, priv->iobase + HW_WDMOD); 108aae03dc9SOleksij Rempel 109aae03dc9SOleksij Rempel asm9260_wdt_updatetimeout(wdd); 110aae03dc9SOleksij Rempel 111aae03dc9SOleksij Rempel asm9260_wdt_feed(wdd); 112aae03dc9SOleksij Rempel 113aae03dc9SOleksij Rempel return 0; 114aae03dc9SOleksij Rempel } 115aae03dc9SOleksij Rempel 116aae03dc9SOleksij Rempel static int asm9260_wdt_disable(struct watchdog_device *wdd) 117aae03dc9SOleksij Rempel { 118aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd); 119aae03dc9SOleksij Rempel 120aae03dc9SOleksij Rempel /* The only way to disable WD is to reset it. */ 121aae03dc9SOleksij Rempel reset_control_assert(priv->rst); 122aae03dc9SOleksij Rempel reset_control_deassert(priv->rst); 123aae03dc9SOleksij Rempel 124aae03dc9SOleksij Rempel return 0; 125aae03dc9SOleksij Rempel } 126aae03dc9SOleksij Rempel 127aae03dc9SOleksij Rempel static int asm9260_wdt_settimeout(struct watchdog_device *wdd, unsigned int to) 128aae03dc9SOleksij Rempel { 129aae03dc9SOleksij Rempel wdd->timeout = to; 130aae03dc9SOleksij Rempel asm9260_wdt_updatetimeout(wdd); 131aae03dc9SOleksij Rempel 132aae03dc9SOleksij Rempel return 0; 133aae03dc9SOleksij Rempel } 134aae03dc9SOleksij Rempel 135aae03dc9SOleksij Rempel static void asm9260_wdt_sys_reset(struct asm9260_wdt_priv *priv) 136aae03dc9SOleksij Rempel { 137aae03dc9SOleksij Rempel /* init WD if it was not started */ 138aae03dc9SOleksij Rempel 139aae03dc9SOleksij Rempel iowrite32(BM_MOD_WDEN | BM_MOD_WDRESET, priv->iobase + HW_WDMOD); 140aae03dc9SOleksij Rempel 141aae03dc9SOleksij Rempel iowrite32(0xff, priv->iobase + HW_WDTC); 142aae03dc9SOleksij Rempel /* first pass correct sequence */ 143aae03dc9SOleksij Rempel asm9260_wdt_feed(&priv->wdd); 144aae03dc9SOleksij Rempel /* 145aae03dc9SOleksij Rempel * Then write wrong pattern to the feed to trigger reset 146aae03dc9SOleksij Rempel * ASAP. 147aae03dc9SOleksij Rempel */ 148aae03dc9SOleksij Rempel iowrite32(0xff, priv->iobase + HW_WDFEED); 149aae03dc9SOleksij Rempel 150aae03dc9SOleksij Rempel mdelay(1000); 151aae03dc9SOleksij Rempel } 152aae03dc9SOleksij Rempel 153aae03dc9SOleksij Rempel static irqreturn_t asm9260_wdt_irq(int irq, void *devid) 154aae03dc9SOleksij Rempel { 155aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv = devid; 156aae03dc9SOleksij Rempel u32 stat; 157aae03dc9SOleksij Rempel 158aae03dc9SOleksij Rempel stat = ioread32(priv->iobase + HW_WDMOD); 159aae03dc9SOleksij Rempel if (!(stat & BM_MOD_WDINT)) 160aae03dc9SOleksij Rempel return IRQ_NONE; 161aae03dc9SOleksij Rempel 162aae03dc9SOleksij Rempel if (priv->mode == DEBUG) { 163aae03dc9SOleksij Rempel dev_info(priv->dev, "Watchdog Timeout. Do nothing.\n"); 164aae03dc9SOleksij Rempel } else { 165aae03dc9SOleksij Rempel dev_info(priv->dev, "Watchdog Timeout. Doing SW Reset.\n"); 166aae03dc9SOleksij Rempel asm9260_wdt_sys_reset(priv); 167aae03dc9SOleksij Rempel } 168aae03dc9SOleksij Rempel 169aae03dc9SOleksij Rempel return IRQ_HANDLED; 170aae03dc9SOleksij Rempel } 171aae03dc9SOleksij Rempel 17255dbe8f3SGuenter Roeck static int asm9260_restart(struct watchdog_device *wdd, unsigned long action, 17355dbe8f3SGuenter Roeck void *data) 174aae03dc9SOleksij Rempel { 17555dbe8f3SGuenter Roeck struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd); 176aae03dc9SOleksij Rempel 177aae03dc9SOleksij Rempel asm9260_wdt_sys_reset(priv); 178aae03dc9SOleksij Rempel 17955dbe8f3SGuenter Roeck return 0; 180aae03dc9SOleksij Rempel } 181aae03dc9SOleksij Rempel 182aae03dc9SOleksij Rempel static const struct watchdog_info asm9260_wdt_ident = { 183aae03dc9SOleksij Rempel .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING 184aae03dc9SOleksij Rempel | WDIOF_MAGICCLOSE, 185aae03dc9SOleksij Rempel .identity = "Alphascale asm9260 Watchdog", 186aae03dc9SOleksij Rempel }; 187aae03dc9SOleksij Rempel 188b893e344SBhumika Goyal static const struct watchdog_ops asm9260_wdt_ops = { 189aae03dc9SOleksij Rempel .owner = THIS_MODULE, 190aae03dc9SOleksij Rempel .start = asm9260_wdt_enable, 191aae03dc9SOleksij Rempel .stop = asm9260_wdt_disable, 192aae03dc9SOleksij Rempel .get_timeleft = asm9260_wdt_gettimeleft, 193aae03dc9SOleksij Rempel .ping = asm9260_wdt_feed, 194aae03dc9SOleksij Rempel .set_timeout = asm9260_wdt_settimeout, 19555dbe8f3SGuenter Roeck .restart = asm9260_restart, 196aae03dc9SOleksij Rempel }; 197aae03dc9SOleksij Rempel 198f57df835SGuenter Roeck static void asm9260_clk_disable_unprepare(void *data) 199f57df835SGuenter Roeck { 200f57df835SGuenter Roeck clk_disable_unprepare(data); 201f57df835SGuenter Roeck } 202f57df835SGuenter Roeck 203ac36856fSArnd Bergmann static int asm9260_wdt_get_dt_clks(struct asm9260_wdt_priv *priv) 204aae03dc9SOleksij Rempel { 205aae03dc9SOleksij Rempel int err; 206aae03dc9SOleksij Rempel unsigned long clk; 207aae03dc9SOleksij Rempel 208aae03dc9SOleksij Rempel priv->clk = devm_clk_get(priv->dev, "mod"); 209aae03dc9SOleksij Rempel if (IS_ERR(priv->clk)) { 210aae03dc9SOleksij Rempel dev_err(priv->dev, "Failed to get \"mod\" clk\n"); 211aae03dc9SOleksij Rempel return PTR_ERR(priv->clk); 212aae03dc9SOleksij Rempel } 213aae03dc9SOleksij Rempel 214aae03dc9SOleksij Rempel /* configure AHB clock */ 215aae03dc9SOleksij Rempel priv->clk_ahb = devm_clk_get(priv->dev, "ahb"); 216aae03dc9SOleksij Rempel if (IS_ERR(priv->clk_ahb)) { 217aae03dc9SOleksij Rempel dev_err(priv->dev, "Failed to get \"ahb\" clk\n"); 218aae03dc9SOleksij Rempel return PTR_ERR(priv->clk_ahb); 219aae03dc9SOleksij Rempel } 220aae03dc9SOleksij Rempel 221aae03dc9SOleksij Rempel err = clk_prepare_enable(priv->clk_ahb); 222aae03dc9SOleksij Rempel if (err) { 223aae03dc9SOleksij Rempel dev_err(priv->dev, "Failed to enable ahb_clk!\n"); 224aae03dc9SOleksij Rempel return err; 225aae03dc9SOleksij Rempel } 226f57df835SGuenter Roeck err = devm_add_action_or_reset(priv->dev, 227f57df835SGuenter Roeck asm9260_clk_disable_unprepare, 228f57df835SGuenter Roeck priv->clk_ahb); 229f57df835SGuenter Roeck if (err) 230f57df835SGuenter Roeck return err; 231aae03dc9SOleksij Rempel 232aae03dc9SOleksij Rempel err = clk_set_rate(priv->clk, CLOCK_FREQ); 233aae03dc9SOleksij Rempel if (err) { 234aae03dc9SOleksij Rempel dev_err(priv->dev, "Failed to set rate!\n"); 235aae03dc9SOleksij Rempel return err; 236aae03dc9SOleksij Rempel } 237aae03dc9SOleksij Rempel 238aae03dc9SOleksij Rempel err = clk_prepare_enable(priv->clk); 239aae03dc9SOleksij Rempel if (err) { 240aae03dc9SOleksij Rempel dev_err(priv->dev, "Failed to enable clk!\n"); 241aae03dc9SOleksij Rempel return err; 242aae03dc9SOleksij Rempel } 243f57df835SGuenter Roeck err = devm_add_action_or_reset(priv->dev, 244f57df835SGuenter Roeck asm9260_clk_disable_unprepare, 245f57df835SGuenter Roeck priv->clk); 246f57df835SGuenter Roeck if (err) 247f57df835SGuenter Roeck return err; 248aae03dc9SOleksij Rempel 249aae03dc9SOleksij Rempel /* wdt has internal divider */ 250aae03dc9SOleksij Rempel clk = clk_get_rate(priv->clk); 251aae03dc9SOleksij Rempel if (!clk) { 252aae03dc9SOleksij Rempel dev_err(priv->dev, "Failed, clk is 0!\n"); 253aae03dc9SOleksij Rempel return -EINVAL; 254aae03dc9SOleksij Rempel } 255aae03dc9SOleksij Rempel 256aae03dc9SOleksij Rempel priv->wdt_freq = clk / 2; 257aae03dc9SOleksij Rempel 258aae03dc9SOleksij Rempel return 0; 259aae03dc9SOleksij Rempel } 260aae03dc9SOleksij Rempel 261ac36856fSArnd Bergmann static void asm9260_wdt_get_dt_mode(struct asm9260_wdt_priv *priv) 262aae03dc9SOleksij Rempel { 263aae03dc9SOleksij Rempel const char *tmp; 264aae03dc9SOleksij Rempel int ret; 265aae03dc9SOleksij Rempel 266aae03dc9SOleksij Rempel /* default mode */ 267aae03dc9SOleksij Rempel priv->mode = HW_RESET; 268aae03dc9SOleksij Rempel 269aae03dc9SOleksij Rempel ret = of_property_read_string(priv->dev->of_node, 270aae03dc9SOleksij Rempel "alphascale,mode", &tmp); 271aae03dc9SOleksij Rempel if (ret < 0) 272aae03dc9SOleksij Rempel return; 273aae03dc9SOleksij Rempel 274aae03dc9SOleksij Rempel if (!strcmp(tmp, "hw")) 275aae03dc9SOleksij Rempel priv->mode = HW_RESET; 276aae03dc9SOleksij Rempel else if (!strcmp(tmp, "sw")) 277aae03dc9SOleksij Rempel priv->mode = SW_RESET; 278aae03dc9SOleksij Rempel else if (!strcmp(tmp, "debug")) 279aae03dc9SOleksij Rempel priv->mode = DEBUG; 280aae03dc9SOleksij Rempel else 281aae03dc9SOleksij Rempel dev_warn(priv->dev, "unknown reset-type: %s. Using default \"hw\" mode.", 282aae03dc9SOleksij Rempel tmp); 283aae03dc9SOleksij Rempel } 284aae03dc9SOleksij Rempel 285ac36856fSArnd Bergmann static int asm9260_wdt_probe(struct platform_device *pdev) 286aae03dc9SOleksij Rempel { 287f57df835SGuenter Roeck struct device *dev = &pdev->dev; 288aae03dc9SOleksij Rempel struct asm9260_wdt_priv *priv; 289aae03dc9SOleksij Rempel struct watchdog_device *wdd; 290aae03dc9SOleksij Rempel int ret; 291b1bbb0cbSColin Ian King static const char * const mode_name[] = { "hw", "sw", "debug", }; 292aae03dc9SOleksij Rempel 293f57df835SGuenter Roeck priv = devm_kzalloc(dev, sizeof(struct asm9260_wdt_priv), GFP_KERNEL); 294aae03dc9SOleksij Rempel if (!priv) 295aae03dc9SOleksij Rempel return -ENOMEM; 296aae03dc9SOleksij Rempel 297f57df835SGuenter Roeck priv->dev = dev; 298aae03dc9SOleksij Rempel 2990f0a6a28SGuenter Roeck priv->iobase = devm_platform_ioremap_resource(pdev, 0); 300aae03dc9SOleksij Rempel if (IS_ERR(priv->iobase)) 301aae03dc9SOleksij Rempel return PTR_ERR(priv->iobase); 302aae03dc9SOleksij Rempel 303f57df835SGuenter Roeck priv->rst = devm_reset_control_get_exclusive(dev, "wdt_rst"); 304aae03dc9SOleksij Rempel if (IS_ERR(priv->rst)) 305aae03dc9SOleksij Rempel return PTR_ERR(priv->rst); 306aae03dc9SOleksij Rempel 3073c829f47SAlexey Khoroshilov ret = asm9260_wdt_get_dt_clks(priv); 3083c829f47SAlexey Khoroshilov if (ret) 3093c829f47SAlexey Khoroshilov return ret; 3103c829f47SAlexey Khoroshilov 311aae03dc9SOleksij Rempel wdd = &priv->wdd; 312aae03dc9SOleksij Rempel wdd->info = &asm9260_wdt_ident; 313aae03dc9SOleksij Rempel wdd->ops = &asm9260_wdt_ops; 314aae03dc9SOleksij Rempel wdd->min_timeout = 1; 315aae03dc9SOleksij Rempel wdd->max_timeout = BM_WDTC_MAX(priv->wdt_freq); 316f57df835SGuenter Roeck wdd->parent = dev; 317aae03dc9SOleksij Rempel 318aae03dc9SOleksij Rempel watchdog_set_drvdata(wdd, priv); 319aae03dc9SOleksij Rempel 320aae03dc9SOleksij Rempel /* 321aae03dc9SOleksij Rempel * If 'timeout-sec' unspecified in devicetree, assume a 30 second 322aae03dc9SOleksij Rempel * default, unless the max timeout is less than 30 seconds, then use 323aae03dc9SOleksij Rempel * the max instead. 324aae03dc9SOleksij Rempel */ 325aae03dc9SOleksij Rempel wdd->timeout = ASM9260_WDT_DEFAULT_TIMEOUT; 326f57df835SGuenter Roeck watchdog_init_timeout(wdd, 0, dev); 327aae03dc9SOleksij Rempel 328aae03dc9SOleksij Rempel asm9260_wdt_get_dt_mode(priv); 329aae03dc9SOleksij Rempel 330aae03dc9SOleksij Rempel if (priv->mode != HW_RESET) 331aae03dc9SOleksij Rempel priv->irq = platform_get_irq(pdev, 0); 332aae03dc9SOleksij Rempel 333aae03dc9SOleksij Rempel if (priv->irq > 0) { 334aae03dc9SOleksij Rempel /* 335aae03dc9SOleksij Rempel * Not all supported platforms specify an interrupt for the 336aae03dc9SOleksij Rempel * watchdog, so let's make it optional. 337aae03dc9SOleksij Rempel */ 338f57df835SGuenter Roeck ret = devm_request_irq(dev, priv->irq, asm9260_wdt_irq, 0, 339f57df835SGuenter Roeck pdev->name, priv); 340aae03dc9SOleksij Rempel if (ret < 0) 341f57df835SGuenter Roeck dev_warn(dev, "failed to request IRQ\n"); 342aae03dc9SOleksij Rempel } 343aae03dc9SOleksij Rempel 34455dbe8f3SGuenter Roeck watchdog_set_restart_priority(wdd, 128); 34555dbe8f3SGuenter Roeck 346f57df835SGuenter Roeck watchdog_stop_on_reboot(wdd); 347f57df835SGuenter Roeck watchdog_stop_on_unregister(wdd); 348f57df835SGuenter Roeck ret = devm_watchdog_register_device(dev, wdd); 349aae03dc9SOleksij Rempel if (ret) 350f57df835SGuenter Roeck return ret; 351aae03dc9SOleksij Rempel 352aae03dc9SOleksij Rempel platform_set_drvdata(pdev, priv); 353aae03dc9SOleksij Rempel 354f57df835SGuenter Roeck dev_info(dev, "Watchdog enabled (timeout: %d sec, mode: %s)\n", 355aae03dc9SOleksij Rempel wdd->timeout, mode_name[priv->mode]); 356aae03dc9SOleksij Rempel return 0; 357aae03dc9SOleksij Rempel } 358aae03dc9SOleksij Rempel 359aae03dc9SOleksij Rempel static const struct of_device_id asm9260_wdt_of_match[] = { 360aae03dc9SOleksij Rempel { .compatible = "alphascale,asm9260-wdt"}, 361aae03dc9SOleksij Rempel {}, 362aae03dc9SOleksij Rempel }; 363aae03dc9SOleksij Rempel MODULE_DEVICE_TABLE(of, asm9260_wdt_of_match); 364aae03dc9SOleksij Rempel 365aae03dc9SOleksij Rempel static struct platform_driver asm9260_wdt_driver = { 366aae03dc9SOleksij Rempel .driver = { 367aae03dc9SOleksij Rempel .name = "asm9260-wdt", 368aae03dc9SOleksij Rempel .of_match_table = asm9260_wdt_of_match, 369aae03dc9SOleksij Rempel }, 370aae03dc9SOleksij Rempel .probe = asm9260_wdt_probe, 371aae03dc9SOleksij Rempel }; 372aae03dc9SOleksij Rempel module_platform_driver(asm9260_wdt_driver); 373aae03dc9SOleksij Rempel 374aae03dc9SOleksij Rempel MODULE_DESCRIPTION("asm9260 WatchDog Timer Driver"); 375aae03dc9SOleksij Rempel MODULE_AUTHOR("Oleksij Rempel <linux@rempel-privat.de>"); 376aae03dc9SOleksij Rempel MODULE_LICENSE("GPL"); 377