127 static u64 sbsa_gwdt_reg_read(struct sbsa_gwdt *gwdt)  in sbsa_gwdt_reg_read()  argument
129 	if (gwdt->version == 0)  in sbsa_gwdt_reg_read()
130 		return readl(gwdt->control_base + SBSA_GWDT_WOR);  in sbsa_gwdt_reg_read()
132 		return lo_hi_readq(gwdt->control_base + SBSA_GWDT_WOR);  in sbsa_gwdt_reg_read()
135 static void sbsa_gwdt_reg_write(u64 val, struct sbsa_gwdt *gwdt)  in sbsa_gwdt_reg_write()  argument
137 	if (gwdt->version == 0)  in sbsa_gwdt_reg_write()
138 		writel((u32)val, gwdt->control_base + SBSA_GWDT_WOR);  in sbsa_gwdt_reg_write()
140 		lo_hi_writeq(val, gwdt->control_base + SBSA_GWDT_WOR);  in sbsa_gwdt_reg_write()
149 	struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);  in sbsa_gwdt_set_timeout()  local
155 		sbsa_gwdt_reg_write((u64)gwdt->clk * timeout, gwdt);  in sbsa_gwdt_set_timeout()
162 		sbsa_gwdt_reg_write(((u64)gwdt->clk / 2) * timeout, gwdt);  in sbsa_gwdt_set_timeout()
169 	struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);  in sbsa_gwdt_get_timeleft()  local
178 	    !(readl(gwdt->control_base + SBSA_GWDT_WCS) & SBSA_GWDT_WCS_WS0))  in sbsa_gwdt_get_timeleft()
179 		timeleft += sbsa_gwdt_reg_read(gwdt);  in sbsa_gwdt_get_timeleft()
181 	timeleft += lo_hi_readq(gwdt->control_base + SBSA_GWDT_WCV) -  in sbsa_gwdt_get_timeleft()
184 	do_div(timeleft, gwdt->clk);  in sbsa_gwdt_get_timeleft()
191 	struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);  in sbsa_gwdt_keepalive()  local
197 	writel(0, gwdt->refresh_base + SBSA_GWDT_WRR);  in sbsa_gwdt_keepalive()
204 	struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);  in sbsa_gwdt_get_version()  local
207 	ver = readl(gwdt->control_base + SBSA_GWDT_W_IIDR);  in sbsa_gwdt_get_version()
210 	gwdt->version = ver;  in sbsa_gwdt_get_version()
215 	struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);  in sbsa_gwdt_start()  local
218 	writel(SBSA_GWDT_WCS_EN, gwdt->control_base + SBSA_GWDT_WCS);  in sbsa_gwdt_start()
225 	struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);  in sbsa_gwdt_stop()  local
228 	writel(0, gwdt->control_base + SBSA_GWDT_WCS);  in sbsa_gwdt_stop()
262 	struct sbsa_gwdt *gwdt;  in sbsa_gwdt_probe()  local
266 	gwdt = devm_kzalloc(dev, sizeof(*gwdt), GFP_KERNEL);  in sbsa_gwdt_probe()
267 	if (!gwdt)  in sbsa_gwdt_probe()
269 	platform_set_drvdata(pdev, gwdt);  in sbsa_gwdt_probe()
284 	gwdt->clk = arch_timer_get_cntfrq();  in sbsa_gwdt_probe()
285 	gwdt->refresh_base = rf_base;  in sbsa_gwdt_probe()
286 	gwdt->control_base = cf_base;  in sbsa_gwdt_probe()
288 	wdd = &gwdt->wdd;  in sbsa_gwdt_probe()
294 	watchdog_set_drvdata(wdd, gwdt);  in sbsa_gwdt_probe()
297 	if (gwdt->version == 0)  in sbsa_gwdt_probe()
298 		wdd->max_hw_heartbeat_ms = U32_MAX / gwdt->clk * 1000;  in sbsa_gwdt_probe()
300 		wdd->max_hw_heartbeat_ms = GENMASK_ULL(47, 0) / gwdt->clk * 1000;  in sbsa_gwdt_probe()
322 					     pdev->name, gwdt)) {  in sbsa_gwdt_probe()
352 		 wdd->timeout, gwdt->clk, action,  in sbsa_gwdt_probe()
361 	struct sbsa_gwdt *gwdt = dev_get_drvdata(dev);  in sbsa_gwdt_suspend()  local
363 	if (watchdog_hw_running(&gwdt->wdd))  in sbsa_gwdt_suspend()
364 		sbsa_gwdt_stop(&gwdt->wdd);  in sbsa_gwdt_suspend()
372 	struct sbsa_gwdt *gwdt = dev_get_drvdata(dev);  in sbsa_gwdt_resume()  local
374 	if (watchdog_hw_running(&gwdt->wdd))  in sbsa_gwdt_resume()
375 		sbsa_gwdt_start(&gwdt->wdd);  in sbsa_gwdt_resume()