diff --git a/arch/arm/include/asm/arch-aspeed/wdt.h b/arch/arm/include/asm/arch-aspeed/wdt.h
index 981fa05..db8ecbc 100644
--- a/arch/arm/include/asm/arch-aspeed/wdt.h
+++ b/arch/arm/include/asm/arch-aspeed/wdt.h
@@ -100,45 +100,6 @@
  * @reset_mask: Reset Mask
  */
 ulong ast_flags_from_reset_mode_mask(u32 reset_mode, u32 reset_mask);
-
-#ifndef CONFIG_WDT
-/**
- * Stop WDT
- *
- * @wdt: watchdog to stop
- *
- * When using driver model this function has different signature
- */
-void wdt_stop(struct ast_wdt *wdt);
-
-/**
- * Stop WDT
- *
- * @wdt: watchdog to start
- * @timeout	watchdog timeout in number of clock ticks
- *
- * When using driver model this function has different signature
- */
-void wdt_start(struct ast_wdt *wdt, u32 timeout);
-#endif  /* CONFIG_WDT */
-
-/**
- * Reset peripherals specified by mask
- *
- * Note, that this is only supported by ast2500 SoC
- *
- * @wdt: watchdog to use for this reset
- * @mask: reset mask.
- */
-int ast_wdt_reset_masked(struct ast_wdt *wdt, u32 mask);
-
-/**
- * ast_get_wdt() - get a pointer to watchdog registers
- *
- * @wdt_number: 0-based WDT peripheral number
- * @return pointer to registers or -ve error on error
- */
-struct ast_wdt *ast_get_wdt(u8 wdt_number);
 #endif  /* __ASSEMBLY__ */
 
 #endif /* _ASM_ARCH_WDT_H */
diff --git a/arch/arm/mach-aspeed/Kconfig b/arch/arm/mach-aspeed/Kconfig
index c5b90bd..4f021ba 100644
--- a/arch/arm/mach-aspeed/Kconfig
+++ b/arch/arm/mach-aspeed/Kconfig
@@ -11,19 +11,13 @@
 
 config ASPEED_AST2500
 	bool "Support Aspeed AST2500 SoC"
+	depends on DM_RESET
 	select CPU_ARM1176
 	help
 	  The Aspeed AST2500 is a ARM-based SoC with arm1176 CPU.
 	  It is used as Board Management Controller on many server boards,
 	  which is enabled by support of LPC and eSPI peripherals.
 
-config WDT_NUM
-	int "Number of Watchdog Timers"
-	default 3 if ASPEED_AST2500
-	help
-	  The number of Watchdot Timers on a SoC.
-	  AST2500 has three WDTsk earlier versions have two or fewer.
-
 source "arch/arm/mach-aspeed/ast2500/Kconfig"
 
 endif
diff --git a/arch/arm/mach-aspeed/ast2500/sdram_ast2500.c b/arch/arm/mach-aspeed/ast2500/sdram_ast2500.c
index cb6e03f..efcf452 100644
--- a/arch/arm/mach-aspeed/ast2500/sdram_ast2500.c
+++ b/arch/arm/mach-aspeed/ast2500/sdram_ast2500.c
@@ -12,6 +12,7 @@
 #include <errno.h>
 #include <ram.h>
 #include <regmap.h>
+#include <reset.h>
 #include <asm/io.h>
 #include <asm/arch/scu_ast2500.h>
 #include <asm/arch/sdram_ast2500.h>
@@ -328,6 +329,7 @@
 
 static int ast2500_sdrammc_probe(struct udevice *dev)
 {
+	struct reset_ctl reset_ctl;
 	struct dram_info *priv = (struct dram_info *)dev_get_priv(dev);
 	struct ast2500_sdrammc_regs *regs = priv->regs;
 	int i;
@@ -345,9 +347,15 @@
 	}
 
 	clk_set_rate(&priv->ddr_clk, priv->clock_rate);
-	ret = ast_wdt_reset_masked(ast_get_wdt(0), WDT_RESET_SDRAM);
+	ret = reset_get_by_index(dev, 0, &reset_ctl);
 	if (ret) {
-		debug("%s(): SDRAM reset failed\n", __func__);
+		debug("%s(): Failed to get reset signal\n", __func__);
+		return ret;
+	}
+
+	ret = reset_assert(&reset_ctl);
+	if (ret) {
+		debug("%s(): SDRAM reset failed: %u\n", __func__, ret);
 		return ret;
 	}
 
diff --git a/arch/arm/mach-aspeed/ast_wdt.c b/arch/arm/mach-aspeed/ast_wdt.c
index 895fba3..1a858b1 100644
--- a/arch/arm/mach-aspeed/ast_wdt.c
+++ b/arch/arm/mach-aspeed/ast_wdt.c
@@ -28,54 +28,3 @@
 
 	return ret;
 }
-
-#ifndef CONFIG_WDT
-void wdt_stop(struct ast_wdt *wdt)
-{
-	clrbits_le32(&wdt->ctrl, WDT_CTRL_EN);
-}
-
-void wdt_start(struct ast_wdt *wdt, u32 timeout)
-{
-	writel(timeout, &wdt->counter_reload_val);
-	writel(WDT_COUNTER_RESTART_VAL, &wdt->counter_restart);
-	/*
-	 * Setting CLK1MHZ bit is just for compatibility with ast2400 part.
-	 * On ast2500 watchdog timer clock is fixed at 1MHz and the bit is
-	 * read-only
-	 */
-	setbits_le32(&wdt->ctrl,
-		     WDT_CTRL_EN | WDT_CTRL_RESET | WDT_CTRL_CLK1MHZ);
-}
-#endif  /* CONFIG_WDT */
-
-int ast_wdt_reset_masked(struct ast_wdt *wdt, u32 mask)
-{
-#ifdef CONFIG_ASPEED_AST2500
-	if (!mask)
-		return -EINVAL;
-
-	writel(mask, &wdt->reset_mask);
-	clrbits_le32(&wdt->ctrl,
-		     WDT_CTRL_RESET_MASK << WDT_CTRL_RESET_MODE_SHIFT);
-	wdt_start(wdt, 1);
-
-	/* Wait for WDT to reset */
-	while (readl(&wdt->ctrl) & WDT_CTRL_EN)
-		;
-	wdt_stop(wdt);
-
-	return 0;
-#else
-	return -EINVAL;
-#endif
-}
-
-struct ast_wdt *ast_get_wdt(u8 wdt_number)
-{
-	if (wdt_number > CONFIG_WDT_NUM - 1)
-		return ERR_PTR(-EINVAL);
-
-	return (struct ast_wdt *)(WDT_BASE +
-				  sizeof(struct ast_wdt) * wdt_number);
-}
diff --git a/configs/evb-ast2500_defconfig b/configs/evb-ast2500_defconfig
index cc5fea9..74808a7 100644
--- a/configs/evb-ast2500_defconfig
+++ b/configs/evb-ast2500_defconfig
@@ -15,3 +15,5 @@
 CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
 CONFIG_TIMER=y
+CONFIG_WDT=y
+CONFIG_DM_RESET=y
diff --git a/drivers/sysreset/sysreset_ast.c b/drivers/sysreset/sysreset_ast.c
index a0ab128..3c3f552 100644
--- a/drivers/sysreset/sysreset_ast.c
+++ b/drivers/sysreset/sysreset_ast.c
@@ -8,21 +8,19 @@
 #include <dm.h>
 #include <errno.h>
 #include <sysreset.h>
+#include <wdt.h>
 #include <asm/io.h>
 #include <asm/arch/wdt.h>
 #include <linux/err.h>
 
-/* Number of Watchdog Timer ticks before reset */
-#define AST_WDT_RESET_TIMEOUT	10
-#define AST_WDT_FOR_RESET	0
-
 static int ast_sysreset_request(struct udevice *dev, enum sysreset_t type)
 {
-	struct ast_wdt *wdt = ast_get_wdt(AST_WDT_FOR_RESET);
-	u32 reset_mode = 0;
+	struct udevice *wdt;
+	u32 reset_mode;
+	int ret = uclass_first_device(UCLASS_WDT, &wdt);
 
-	if (IS_ERR(wdt))
-		return PTR_ERR(wdt);
+	if (ret)
+		return ret;
 
 	switch (type) {
 	case SYSRESET_WARM:
@@ -35,11 +33,11 @@
 		return -EPROTONOSUPPORT;
 	}
 
-	/* Clear reset mode bits */
-	clrsetbits_le32(&wdt->ctrl,
-			(WDT_CTRL_RESET_MODE_MASK << WDT_CTRL_RESET_MODE_SHIFT),
-			(reset_mode << WDT_CTRL_RESET_MODE_SHIFT));
-	wdt_start(wdt, AST_WDT_RESET_TIMEOUT);
+	ret = wdt_expire_now(wdt, reset_mode);
+	if (ret) {
+		debug("Sysreset failed: %d", ret);
+		return ret;
+	}
 
 	return -EINPROGRESS;
 }