diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 55097e068908..b1e7190ae483 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -7,6 +7,7 @@
 
 #include <linux/clk.h>
 #include <linux/console.h>
+#include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
 #include <linux/dmapool.h>
@@ -109,6 +110,11 @@
 #define UARTSFIFO_TXOF		0x02
 #define UARTSFIFO_RXUF		0x01
 
+/* 32-bit global registers only for i.MX7ULP/i.MX8x
+ * Used to reset all internal logic and registers, except the Global Register.
+ */
+#define UART_GLOBAL		0x8
+
 /* 32-bit register definition */
 #define UARTBAUD		0x00
 #define UARTSTAT		0x04
@@ -219,6 +225,10 @@
 #define UARTWATER_TXWATER_OFF	0
 #define UARTWATER_RXWATER_OFF	16
 
+#define UART_GLOBAL_RST	0x2
+#define GLOBAL_RST_MIN_US	20
+#define GLOBAL_RST_MAX_US	40
+
 /* Rx DMA timeout in ms, which is used to calculate Rx ring buffer size */
 #define DMA_RX_TIMEOUT		(10)
 
@@ -320,6 +330,11 @@ static inline bool is_layerscape_lpuart(struct lpuart_port *sport)
 		sport->devtype == LS1028A_LPUART);
 }
 
+static inline bool is_imx7ulp_lpuart(struct lpuart_port *sport)
+{
+	return sport->devtype == IMX7ULP_LPUART;
+}
+
 static inline bool is_imx8qxp_lpuart(struct lpuart_port *sport)
 {
 	return sport->devtype == IMX8QXP_LPUART;
@@ -383,6 +398,33 @@ static unsigned int lpuart_get_baud_clk_rate(struct lpuart_port *sport)
 #define lpuart_enable_clks(x)	__lpuart_enable_clks(x, true)
 #define lpuart_disable_clks(x)	__lpuart_enable_clks(x, false)
 
+static int lpuart_global_reset(struct lpuart_port *sport)
+{
+	struct uart_port *port = &sport->port;
+	void __iomem *global_addr;
+	int ret;
+
+	if (uart_console(port))
+		return 0;
+
+	ret = clk_prepare_enable(sport->ipg_clk);
+	if (ret) {
+		dev_err(sport->port.dev, "failed to enable uart ipg clk: %d\n", ret);
+		return ret;
+	}
+
+	if (is_imx7ulp_lpuart(sport) || is_imx8qxp_lpuart(sport)) {
+		global_addr = port->membase + UART_GLOBAL - IMX_REG_OFF;
+		writel(UART_GLOBAL_RST, global_addr);
+		usleep_range(GLOBAL_RST_MIN_US, GLOBAL_RST_MAX_US);
+		writel(0, global_addr);
+		usleep_range(GLOBAL_RST_MIN_US, GLOBAL_RST_MAX_US);
+	}
+
+	clk_disable_unprepare(sport->ipg_clk);
+	return 0;
+}
+
 static void lpuart_stop_tx(struct uart_port *port)
 {
 	unsigned char temp;
@@ -2699,6 +2741,10 @@ static int lpuart_probe(struct platform_device *pdev)
 	if (ret)
 		goto failed_attach_port;
 
+	ret = lpuart_global_reset(sport);
+	if (ret)
+		goto failed_reset;
+
 	ret = uart_get_rs485_mode(&sport->port);
 	if (ret)
 		goto failed_get_rs485;
@@ -2715,6 +2761,8 @@ static int lpuart_probe(struct platform_device *pdev)
 	return 0;
 
 failed_get_rs485:
+failed_reset:
+	uart_remove_one_port(&lpuart_reg, &sport->port);
 failed_attach_port:
 failed_irq_request:
 	lpuart_disable_clks(sport);