--- /dev/null
+/*
+ * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/uart.h>
+#include <asm/io.h>
+
+static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
+static struct uart_ctrl_regs *ctrl = (struct uart_ctrl_regs *)UART_CTRL_BASE;
+
+void lpc32xx_uart_init(unsigned int uart_id)
+{
+ if (uart_id < 1 || uart_id > 7)
+ return;
+
+ /* Disable loopback mode, if it is set by S1L bootloader */
+ clrbits_le32(&ctrl->loop,
+ UART_LOOPBACK(CONFIG_SYS_LPC32XX_UART));
+
+ if (uart_id < 3 || uart_id > 6)
+ return;
+
+ /* Enable UART system clock */
+ setbits_le32(&clk->uartclk_ctrl, CLK_UART(uart_id));
+
+ /* Set UART into autoclock mode */
+ clrsetbits_le32(&ctrl->clkmode,
+ UART_CLKMODE_MASK(uart_id),
+ UART_CLKMODE_AUTO(uart_id));
+
+ /* Bypass pre-divider of UART clock */
+ writel(CLK_UART_X_DIV(1) | CLK_UART_Y_DIV(1),
+ &clk->u3clk + (uart_id - 3));
+}