1 files changed, 0 insertions, 130 deletions
diff --git a/arch/mips/mach-au1x00/au1x00_serial.c b/arch/mips/mach-au1x00/au1x00_serial.c
deleted file mode 100644
index 4bcbc2d3ae..0000000000
--- a/arch/mips/mach-au1x00/au1x00_serial.c
+++ /dev/null
@@ -1,130 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * AU1X00 UART support
- *
- * Hardcoded to UART 0 for now
- * Speed and options also hardcoded to 115200 8N1
- *
- *  Copyright (c) 2003	Thomas.Lange@corelatus.se
- */
-
-#include <config.h>
-#include <common.h>
-#include <mach/au1x00.h>
-#include <serial.h>
-#include <linux/compiler.h>
-
-/******************************************************************************
-*
-* serial_init - initialize a channel
-*
-* This routine initializes the number of data bits, parity
-* and set the selected baud rate. Interrupts are disabled.
-* Set the modem control signals if the option is selected.
-*
-* RETURNS: N/A
-*/
-
-static int au1x00_serial_init(void)
-{
-	volatile u32 *uart_fifoctl = (volatile u32*)(UART0_ADDR+UART_FCR);
-	volatile u32 *uart_enable = (volatile u32*)(UART0_ADDR+UART_ENABLE);
-
-	/* Enable clocks first */
-	*uart_enable = UART_EN_CE;
-
-	/* Then release reset */
-	/* Must release reset before setting other regs */
-	*uart_enable = UART_EN_CE|UART_EN_E;
-
-	/* Activate fifos, reset tx and rx */
-	/* Set tx trigger level to 12 */
-	*uart_fifoctl = UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|
-		UART_FCR_CLEAR_XMIT|UART_FCR_T_TRIGGER_12;
-
-	serial_setbrg();
-
-	return 0;
-}
-
-
-static void au1x00_serial_setbrg(void)
-{
-	volatile u32 *uart_clk = (volatile u32*)(UART0_ADDR+UART_CLK);
-	volatile u32 *uart_lcr = (volatile u32*)(UART0_ADDR+UART_LCR);
-	volatile u32 *sys_powerctrl = (u32 *)SYS_POWERCTRL;
-	int sd;
-	int divisorx2;
-
-	/* sd is system clock divisor			*/
-	/* see section 10.4.5 in au1550 datasheet	*/
-	sd = (*sys_powerctrl & 0x03) + 2;
-
-	/* calulate 2x baudrate and round */
-	divisorx2 = ((CONFIG_SYS_MIPS_TIMER_FREQ/(sd * 16 * CONFIG_BAUDRATE)));
-
-	if (divisorx2 & 0x01)
-		divisorx2 = divisorx2 + 1;
-
-	*uart_clk = divisorx2 / 2;
-
-	/* Set parity, stop bits and word length to 8N1 */
-	*uart_lcr = UART_LCR_WLEN8;
-}
-
-static void au1x00_serial_putc(const char c)
-{
-	volatile u32 *uart_lsr = (volatile u32*)(UART0_ADDR+UART_LSR);
-	volatile u32 *uart_tx = (volatile u32*)(UART0_ADDR+UART_TX);
-
-	if (c == '\n')
-		au1x00_serial_putc('\r');
-
-	/* Wait for fifo to shift out some bytes */
-	while((*uart_lsr&UART_LSR_THRE)==0);
-
-	*uart_tx = (u32)c;
-}
-
-static int au1x00_serial_getc(void)
-{
-	volatile u32 *uart_rx = (volatile u32*)(UART0_ADDR+UART_RX);
-	char c;
-
-	while (!serial_tstc());
-
-	c = (*uart_rx&0xFF);
-	return c;
-}
-
-static int au1x00_serial_tstc(void)
-{
-	volatile u32 *uart_lsr = (volatile u32*)(UART0_ADDR+UART_LSR);
-
-	if(*uart_lsr&UART_LSR_DR){
-		/* Data in rfifo */
-		return(1);
-	}
-	return 0;
-}
-
-static struct serial_device au1x00_serial_drv = {
-	.name	= "au1x00_serial",
-	.start	= au1x00_serial_init,
-	.stop	= NULL,
-	.setbrg	= au1x00_serial_setbrg,
-	.putc	= au1x00_serial_putc,
-	.puts	= default_serial_puts,
-	.getc	= au1x00_serial_getc,
-	.tstc	= au1x00_serial_tstc,
-};
-
-void au1x00_serial_initialize(void)
-{
-	serial_register(&au1x00_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
-	return &au1x00_serial_drv;
-}